Runge_Kutta

In spite of the fact that not all patent applications become patents and old patent application that were accepted are newer patents, it seems that GM has at least 162+37=199 patents and 252 patent applications on dual-clutch transmissions. So, it is not going very far out on a limb to say that they fully intend to put a DCT into production soon.

Patents

1 8,600,633 Full-Text Gear preselect systems for a dual clutch transmission
2 8,591,381 Full-Text System and method for controlling an automatic engine restart
3 8,590,684 Full-Text Control system for a dual clutch transmission
4 8,589,042 Full-Text System and method for adaptive transmission clutch torque control
5 8,585,548 Full-Text System and method for controlling an automatic engine stop-start
6 8,579,762 Full-Text Negative torque upshift offgoing clutch control systems and methods
7 8,579,751 Full-Text Hybrid powertrain with layshaft transmission and electric torque converter and method of controlling same
8 8,578,803 Full-Text Synchronizer actuation assembly
9 8,577,565 Full-Text Limiting branch pressure to a solenoid valve in a fluid circuit
10 8,573,084 Full-Text Dual clutch transmission
11 8,567,580 Full-Text Electro-hydraulic control system for a dual clutch transmission
12 8,567,273 Full-Text Gear transfer dual clutch transmission
13 8,561,502 Full-Text Dual drive pump system with one way clutches
14 8,560,192 Full-Text Control system and method for shift fork position in dual clutch transmissions
15 8,551,576 Full-Text Method for controlling a coefficient of friction
16 8,548,699 Full-Text Control system and method for adaptive control of transmission fluid operating pressures
17 8,543,279 Full-Text System and method for detecting and responding to pressure losses in a hydraulic automatic transmission
18 8,534,150 Full-Text Dual clutch multi-speed transmission
19 8,532,890 Full-Text Driven wheel torque estimation systems and methods
20 8,532,858 Full-Text Multi-speed hybrid powertrain with series and parallel operating modes
21 8,529,402 Full-Text Pump arrangement
22 8,528,711 Full-Text Control system for a dual clutch transmission
23 8,528,431 Full-Text Dual clutch transmission
24 8,521,382 Full-Text Transmission oil temperature estimation systems and methods
25 8,511,189 Full-Text Dual clutch multi-speed transmission
26 8,505,401 Full-Text Seven speed dual clutch transmission with four axes of rotation
27 8,505,400 Full-Text Dual clutch five speed transmission
28 8,504,267 Full-Text Control system and method for synchronization control in dual clutch transmissions
29 8,504,265 Full-Text System and method for decreasing acceleration disturbance during transmission upshifts
30 8,504,263 Full-Text Accumulator working volume management and adaptation
31 8,499,656 Full-Text Eight speed dual clutch transmission
32 8,495,926 Full-Text Dual clutch transmission
33 8,485,333 Full-Text Actuation device for a dual clutch transmission
34 8,485,056 Full-Text Dual clutch multi-speed transmission
35 8,479,602 Full-Text Seven speed dual clutch transmission with four axes of rotation
36 8,475,336 Full-Text Hydraulic control system for a dual clutch transmission
37 8,474,586 Full-Text Clutch actuation assembly with satellite pistons
38 8,474,341 Full-Text Dual clutch transmission
39 8,469,858 Full-Text Hybrid vehicle with dual clutch transmission
40 8,469,851 Full-Text Oil supply system for an automatic transmission of a vehicle, an automatic transmission and a vehicle comprising the oil supply system
41 8,464,851 Full-Text Electro-hydraulic control system for an automatic transmission
42 8,464,599 Full-Text Eight speed dual clutch transmission
43 8,459,135 Full-Text Seven speed dual clutch transmission having improved packaging
44 8,453,557 Full-Text Piston actuator assembly
45 8,443,688 Full-Text Method of learning an initial capacity point of a clutch in a dual clutch transmission
46 8,443,687 Full-Text Electro-hydraulic control system for a dual clutch transmission
47 8,443,686 Full-Text Seven speed dual clutch transmission
48 8,439,803 Full-Text System and method for improved closed throttle downshifts
49 8,438,941 Full-Text Eight speed dual clutch transmission
50 8,434,603 Full-Text Low content control system for a dual clutch transmission
51 8,434,380 Full-Text Dual clutch multi-speed transmission
52 8,433,487 Full-Text Shift sequencing systems for a dual clutch transmission
53 8,430,220 Full-Text Wet dual clutch transmission control system
54 8,429,994 Full-Text Hydraulic control systems for dual clutch transmissions
55 8,427,806 Full-Text Control system and method for transmission solenoids
56 8,425,376 Full-Text Multi-speed dual-clutch transmission for a hybrid vehicle
57 8,424,404 Full-Text Eight speed dual clutch transmissions
58 8,413,780 Full-Text Dual clutch for a transmission having multiple input shafts
59 8,413,777 Full-Text High efficiency hydraulic transmission control system
60 8,412,396 Full-Text Electric launch of a hybrid vehicle having a belt alternator starter and a dual clutch transmission
61 8,408,085 Full-Text Seven speed dual clutch transmission
62 8,403,792 Full-Text Hydraulic control systems for dual clutch transmissions
63 8,402,993 Full-Text Hydraulic fluid cooling system for a dual clutch automatic transmission
64 8,402,859 Full-Text Barrel cam shift mechanism
65 8,402,855 Full-Text Hydraulic control systems for dual clutch transmissions
66 8,396,634 Full-Text Method and apparatus for maximum and minimum output torque performance by selection of hybrid range state and input speed for a hybrid powertrain system
67 8,382,639 Full-Text Control system for a dual clutch transmission
68 8,376,109 Full-Text Lever applied dry clutch
69 8,375,817 Full-Text Dual clutch transmission
70 8,371,552 Full-Text Shift actuator valve having a pressure dead band
71 8,366,557 Full-Text Engine drive plate connection
72 8,365,893 Full-Text Dual clutch
73 8,365,622 Full-Text Reverse chain drive for motor vehicle transmissions
74 8,364,364 Full-Text System and method for controlling unpowered to powered transitions in vehicles having dry dual clutch transmissions
75 8,364,361 Full-Text Transmission clutch control apparatus and method
76 8,359,941 Full-Text Hydraulic control systems for dual clutch transmissions
77 8,356,529 Full-Text Hydraulic control systems for dual clutch transmissions
78 8,346,451 Full-Text Realtime estimation of clutch piston position
79 8,336,411 Full-Text Dual clutch multi-speed transmission
80 8,336,410 Full-Text Dual clutch multi-speed transmission
81 8,333,127 Full-Text Seven speed dual clutch transmission with four axes of rotation
82 8,327,730 Full-Text Dual clutch transmission
83 8,313,415 Full-Text Method and apparatus for clutch control in a vehicle having an engine start-stop powertrain and a dual-clutch transmission
84 8,302,500 Full-Text Dual clutch transmission
85 8,297,424 Full-Text Single actuator self-adjusting dry dual clutch
86 8,297,140 Full-Text Dual clutch five speed transmission
87 8,292,055 Full-Text Self-adjusting mechanisms for clutches
88 8,286,526 Full-Text Synchronizer actuating system
89 8,286,522 Full-Text Dual clutch transmission
90 8,285,463 Full-Text Method and system for calibrating a pressure sensor for an automatic transmission
91 8,276,439 Full-Text System and method for determining a volume of a torque converter clutch and calibrating a transmission
92 8,266,986 Full-Text Transmission hydraulic control system having a dual element pump
93 8,266,977 Full-Text Seven speed dual clutch transmission
94 8,241,161 Full-Text Hybrid module for interconnecting an engine and a transmission
95 8,240,224 Full-Text Dual clutch five speed transmission
96 8,234,946 Full-Text Hydraulic control system for a dual clutch transmission
97 8,225,915 Full-Text Dual clutch torque converter control system
98 8,225,687 Full-Text Hydraulic control systems for dual clutch transmissions
99 8,224,537 Full-Text Method and apparatus for dry clutch temperature prediction in a DCT
100 8,221,279 Full-Text Dual apply clutch apparatus for compact electro-mechanical transmission
101 8,220,352 Full-Text Dual clutch transmission
102 8,220,351 Full-Text Dual clutch multi-speed transmission having one countershaft and a reverse shaft
103 8,210,066 Full-Text Electromagnetic synchronizer actuating system
104 8,206,265 Full-Text Control system for dual clutch transmission
105 8,192,176 Full-Text Hydraulic fluid supply system having active regulator
106 8,191,441 Full-Text Hybrid powertrain and dual clutch transmission
107 8,190,343 Full-Text Gear actuator control systems and methods for dual clutch transmissions
108 8,189,336 Full-Text Composite cover with integral heat sink
109 8,166,841 Full-Text Manual transmission for a motor vehicle
110 8,150,586 Full-Text Method for synchronized transmission gear ratio engagement
111 8,137,241 Full-Text System and method for automatic transmission shift control
112 8,117,935 Full-Text Synchronizer actuating system with selectives
113 8,117,933 Full-Text Five speed dual clutch transmission
114 8,117,932 Full-Text Multi-speed transmission with countershaft gearing
115 8,116,951 Full-Text Transmission with substantially identical gear sets for torque load sharing
116 8,104,367 Full-Text Seven speed dual clutch transmission
117 8,104,366 Full-Text Double-clutch transmission for vehicles
118 8,091,696 Full-Text Rocker clutch assembly
119 8,070,649 Full-Text Hybrid powertrain and dual clutch transmission
120 8,070,638 Full-Text Dual input planetary final drive
121 8,065,930 Full-Text Hydraulic actuator for transmissions having reduced noise
122 8,056,663 Full-Text Hybrid module for interconnecting an engine and a dual-clutch transmission
123 8,056,429 Full-Text Multi-speed dual clutch transmission with countershaft gearing arrangement
124 8,038,564 Full-Text Multi-speed transmission
125 8,011,261 Full-Text Multi-speed transmission with countershaft gearing arrangement
126 7,988,772 Full-Text Air/oil separator for transmissions and transaxles
127 7,987,740 Full-Text Multi-speed transmission with countershaft gearing arrangement
128 7,985,283 Full-Text System for de-aerating a hydraulic fluid in a transmission
129 7,980,374 Full-Text Flow accumulator and clutch control system for automatic transmissions
130 7,972,235 Full-Text Hybrid powertrain system having selectively connectable engine, motor/generator, and transmission
131 7,963,191 Full-Text Hybrid powertrain and dual clutch transmission
132 7,913,580 Full-Text Apparatus and method for securing transmission gear synchronizers to shafts
133 7,896,775 Full-Text Control system for electronic range selection in a dual clutch transmission
134 7,896,770 Full-Text Multi-speed transmission
135 7,886,626 Full-Text Multi-speed dual clutch transmission
136 7,870,804 Full-Text Multi-speed dual clutch transmission
137 7,846,055 Full-Text Multi-speed split dual clutch transmission
138 7,845,247 Full-Text Shift fork actuation system for control of synchronizer position
139 7,837,589 Full-Text Multi-speed split dual clutch transmission
140 7,832,298 Full-Text Countershaft clutch and gear assembly
141 7,828,684 Full-Text Control system for a differential in a transmission
142 7,752,935 Full-Text Control system for a multi-speed transmission
143 7,752,934 Full-Text Multi speed transmission having a countershaft gearing arrangement
144 7,743,678 Full-Text Selectable one-way rocker clutch
145 7,743,677 Full-Text Powertrain with torque converter and axially compact seven speed dual clutch transmission
146 7,703,346 Full-Text Multi-speed transmission with countershaft gearing
147 7,695,390 Full-Text Multi-speed transmission
148 7,669,497 Full-Text Powertrain with torque converter and axially compact seven speed dual clutch transmission
149 7,644,639 Full-Text Multi-speed transmission with countershaft gearing
150 7,640,818 Full-Text Multi-speed transmission with a countershaft gearing
151 7,610,825 Full-Text Multi-speed transmission with countershaft gearing
152 7,604,561 Full-Text Multi-speed countershaft transmission with a planetary gear set and method
153 7,597,644 Full-Text Nine or ten speed split clutch countershaft automatic transmission
154 7,524,265 Full-Text Powertrain overspeed protection
155 7,478,572 Full-Text Transmission with torque sensors and method of controlling a transmission
156 7,437,963 Full-Text Power transmission
157 7,415,905 Full-Text Vehicular transmissions utilizing slipper ring clutch control
158 7,401,687 Full-Text Dual clutch engine coupling damper
159 7,353,724 Full-Text Multi-speed transmission with Hi-Lo output torque-transmitting mechanisms and gear sets
160 7,322,456 Full-Text Radially stacked dual dry clutch configuration
161 7,311,630 Full-Text Multi-speed transmission with differential gear set and countershaft gearing
162 7,235,037 Full-Text Friction launch control system for a vehicle

Older Patents

1 7,470,206 Full-Text Multi-speed countershaft transmission with a planetary gear set
2 7,263,907 Full-Text Dual clutch transmission with a torque converter
3 7,246,673 Full-Text Hybrid powertrain with engine valve deactivation
4 7,140,267 Full-Text Multi-speed dual clutch transmission
5 7,033,298 Full-Text Family of five-speed dual-clutch transmissions having three planetary gear sets
6 7,008,347 Full-Text Single overdrive six-speed transmission with low internal speeds
7 7,004,881 Full-Text Dual input clutch transmission having synchronizers for establishing speed ratios
8 6,852,059 Full-Text Six-speed dual-clutch transmissions having planetary gear sets with two interconnecting members
9 6,837,823 Full-Text Six-speed dual-clutch transmissions having four planetary gear sets and two brakes
10 6,811,512 Full-Text Multi-speed dual-clutch planetary transmission mechanisms having a stationary gear member and two brakes
11 6,783,477 Full-Text Family of six-speed dual-clutch transmissions having three planetary gear sets
12 6,767,307 Full-Text Family of multi-speed dual-clutch transmissions having four planetary gear sets and four brakes
13 6,764,426 Full-Text Multi-speed dual-clutch transmissions having three interconnecting members and four brakes
14 6,764,425 Full-Text Multi-speed dual-clutch planetary transmissions having four fixed interconnecting members
15 6,764,424 Full-Text Six-speed dual-clutch transmissions having planetary gear sets with three interconnecting members
16 6,758,787 Full-Text Family of six-speed dual-clutch transmissions having a stationary planetary gear member
17 6,758,784 Full-Text Family of six-speed dual-clutch transmissions having a stationary planetary member and two brakes
18 6,755,765 Full-Text Multi-speed dual-clutch planetary transmissions having three gear members continuously interconnected with output shaft
19 6,752,736 Full-Text Multi-speed dual-clutch planetary transmissions having a stationary fourth gear set member
20 6,746,363 Full-Text Multi-speed dual-clutch planetary transmission mechanisms having a stationary gear member and one brake
21 6,746,357 Full-Text Family of six-speed dual-clutch transmissions having four planetary gear sets and three brakes
22 6,743,144 Full-Text Multi-speed dual-clutch planetary transmissions having three continuously interconnected gear members
23 6,743,143 Full-Text Multi-speed dual-clutch planetary transmission mechanisms having four gear sets and a stationary member
24 6,743,142 Full-Text Multi-speed dual-clutch planetary transmission mechanisms having three interconnecting members
25 6,743,140 Full-Text Family of six-speed dual-clutch transmissions having two stationary planetary gear members
26 6,743,139 Full-Text Multi-speed dual-clutch planetary transmissions having output shaft interconnected with three gear members
27 6,736,751 Full-Text Family of multi-speed dual-clutch transmissions having three interconnected planetary gear members
28 6,716,132 Full-Text Family of multi-speed dual-clutch transmissions having four interconnected planetary gear sets
29 6,669,596 Full-Text Dual input clutch planetary transmission
30 6,663,528 Full-Text Dual clutch planetary manual transmission with switched output
31 6,645,114 Full-Text Multiple axes planetary transmission
32 5,390,560 Full-Text Countershafts power transmission
33 5,367,914 Full-Text Power transmission having creeping speed by concurrent suppling engagement of the dual input plate clutches of the countershafts
34 5,353,661 Full-Text Power transmission with coaxial input and output shafts supported at one end of each shaft by a floating bearing support
35 5,347,879 Full-Text Power transmission
36 5,129,495 Full-Text Dual roller clutch assembly with assembly integrity assurance
37 4,513,631 Full-Text Dual input clutch transmission


Patent Applications

1 20130319813 LATCHING CLUTCH VALVE CONTROL SYSTEM
2 20130311055 AUTOMATIC TRANSMISSION INPUT CLUTCH CONTROL
3 20130310219 AUTOMATIC TRANSMISSION SYNCHRONOUS GEAR SHIFT
4 20130296093 LATCHING CLUTCH CONTROL SYSTEM
5 20130283956 BRACKET HAVING A SECONDARY LOCKING FEATURE FOR ATTACHMENT OF A SHIFT CABLE TO A TRANSMISSION
6 20130282247 ADAPTABLE THERMAL MANAGEMENT OF A VEHICLE DUAL-CLUTCH TRANSMISSION
7 20130282246 ADAPTABLE THERMAL MANAGEMENT OF A VEHICLE DUAL-CLUTCH TRANSMISSION
8 20130282243 DUAL-CLUTCH TRANSMISSION THERMAL MANAGEMENT
9 20130281253 LATCHING CLUTCH CONTROL SYSTEM
10 20130264164 METHOD OF OPERATING A TORQUE CONVERTER CLUTCH
11 20130263584 SYSTEM AND METHOD FOR ACCUMULATOR FLUID MIXING
12 20130240319 TRANSMISSION CLUTCH WITH IMPROVED COOLING
13 20130240315 DUAL-CLUTCH TRANSMISSION THERMAL MANAGEMENT
14 20130239715 SEVEN SPEED DUAL CLUTCH TRANSMISSION
15 20130231833 DUAL-CLUTCH TRANSMISSION PREDICTIVE THERMAL PROTECTION
16 20130196805 HYBRID POWERTRAIN WITH LAYSHAFT TRANSMISSION AND ELECTRIC TORQUE CONVERTER AND METHOD OF CONTROLLING SAME
17 20130184946 DUAL CLUTCH TRANSMISSION
18 20130175135 HYDRAULIC FLUID TRANSFER ASSEMBLY
19 20130158824 LIMITING BRANCH PRESSURE TO A SOLENOID VALVE IN A FLUID CIRCUIT
20 20130141082 LINEAR POSITION SENSOR ASSEMBLY HAVING MAGNETIC SHIELD
21 20130139646 LAYSHAFT AUTOMATIC TRANSMISSION
22 20130125684 SYSTEM AND METHOD FOR CONTROLLING A TRANSMISSION
23 20130124056 DRIVEN WHEEL TORQUE ESTIMATION SYSTEMS AND METHODS
24 20130118854 TRANSMISSION HYDRAULIC CONTROL SYSTEM HAVING AN AUTOMATIC ENGINE STOP-START ACCUMULATOR
25 20130118850 CHANGE OF MIND SHIFT CONTROL
26 20130118159 HYDROSTATIC HYDRAULIC HYBRID SYSTEM
27 20130116898 SYSTEM AND METHOD FOR CONTROLLING AN AUTOMATIC ENGINE STOP-START ACCUMULATOR
28 20130113407 CONTROL SYSTEM WITH REMOTE DRIVERS
29 20130096810 ALTERNATOR CONTROL SYSTEMS AND METHODS FOR VEHICLE DECELERATION
30 20130081918 PUMP DRIVE LAUNCH DEVICE ACTUATOR
31 20130080009 SYSTEM AND METHOD FOR ESTIMATING HYDRAULIC PRESSURE WITHIN AND CONTROLLING A DRY DUAL CLUTCH TRANSMISSION
32 20130053207 TRANSMISSION WITH DUAL CLUTCH ACTUATION ASSEMBLY
33 20130049941 ADAPTIVE CONTROL SYSTEMS AND METHODS FOR TRANSMISSION SOLENOIDS
34 20130043086 TRANSMISSION OIL DELIVERY CONTROL SYSTEM AND METHOD
35 20130038319 PLASTIC SPEED TARGET WHEEL AND METHOD OF MANUFACTURE
36 20130031993 EIGHT SPEED DUAL CLUTCH TRANSMISSION
37 20130031992 SEVEN SPEED DUAL CLUTCH TRANSMISSION
38 20130031991 EIGHT SPEED DUAL CLUTCH TRANSMISSION
39 20130031990 EIGHT SPEED DUAL CLUTCH TRANSMISSION
40 20130031989 SEVEN SPEED DUAL CLUTCH TRANSMISSION
41 20130023381 ENGINE POSITION CONTROL IN AN ENGINE STOP-START POWERTRAIN
42 20130018556 SYSTEM AND METHOD FOR ADAPTIVE TRANSMISSION CLUTCH TORQUE CONTROL
43 20130006496 SYSTEM AND METHOD FOR CALIBRATING ENGINE CRANKSHAFT-CAMSHAFT CORRELATION AND FOR IMPROVED VEHICLE LIMP-HOME MODE
44 20120329604 SYSTEM AND METHOD FOR IMPROVED CLOSED THROTTLE DOWNSHIFTS
45 20120304960 ROLLING NEUTRAL MODE CONTROL SYSTEMS AND METHODS
46 20120296537 SYSTEM AND METHOD FOR DECREASING ACCELERATION DISTURBANCE DURING TRANSMISSION UPSHIFTS
47 20120290249 THERMAL MODEL FOR DRY DUAL CLUTCH TRANSMISSIONS
48 20120290248 METHOD FOR DETERMINING CLUTCH INTERFACE TEMPERATURES IN DRY DUAL CLUTCH TRANSMISSIONS
49 20120290181 METHOD FOR DETERMINING INITIAL TEMPERATURES IN DRY DUAL CLUTCH TRANSMISSIONS
50 20120290167 APPARATUS AND METHOD FOR OPERATING A CLUTCH IN A TRANSMISSION
51 20120289376 HYBRID VEHICLE WITH DUAL CLUTCH TRANSMISSION
52 20120277964 DIRECT CLUTCH CONTROL FOR DUAL CLUTCH TRANSMISSIONS
53 20120272761 DUAL CLUTCH MULTI-SPEED TRANSMISSION
54 20120272760 DUAL CLUTCH MULTI-SPEED TRANSMISSION
55 20120260756 EIGHT SPEED DUAL CLUTCH TRANSMISSION
56 20120252626 NINE SPEED DUAL CLUTCH TRANSMISSION
57 20120249128 MAGNETIC SENSOR SYSTEM
58 20120247902 ELECTRO-HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION
59 20120234123 DRIVELINE STIFFNESS RELAXATION SYSTEMS AND METHODS FOR DFCO OPERATION
60 20120222512 DOUBLE CLUTCH ACTUATION ARRANGEMENT
61 20120221224 PRE-THROTTLE PRESSURE CONTROL SYSTEMS AND METHODS
62 20120191310 CLUTCH CAPACITY DETECTION SYSTEMS AND METHODS
63 20120187750 HILL ROLL-BACK AND ROLL-FORWARD CONTROL SYSTEMS AND METHODS
64 20120180759 TURBOCHARGER BOOST CONTROL SYSTEMS AND METHODS FOR GEAR SHIFTS
65 20120174707 EIGHT SPEED DUAL CLUTCH TRANSMISSION
66 20120174706 EIGHT SPEED DUAL CLUTCH TRANSMISSION
67 20120174703 EIGHT SPEED DUAL CLUTCH TRANSMISSIONS
68 20120158224 METHOD AND APPARATUS TO PROTECT POWERTRAIN COMPONENTS FROM EXCESSIVE FORCE DAMAGE DUE TO WHEEL LOCKUP
69 20120145504 CONTROL SYSTEM AND METHOD FOR A DUAL CLUTCH TRANSMISSION
70 20120145503 ELECTRO-HYDRAULIC CONTROL SYSTEM AND METHOD FOR A DUAL CLUTCH TRANSMISSION
71 20120145502 ELECTRO-HYDRAULIC CONTROL SYSTEM AND METHOD FOR A DUAL CLUTCH TRANSMISSION
72 20120144946 METHOD OF CONTROLLING A HYDRAULIC CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
73 20120144945 SINGLE-PISTON THREE-POSITION HYDRAULIC ACTUATOR
74 20120138413 APPARATUS FOR AND METHOD OF CONTROLLING A DUAL CLUTCH TRANSMISSION
75 20120138408 METHOD OF CONTROLLING A DUAL CLUTCH TRANSMISSION
76 20120138406 ELECTRO-HYDRAULIC CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
77 20120137806 METHOD OF CONTROLLING A DUAL CLUTCH TRANSMISSION
78 20120118102 DUAL DRIVE PUMP SYSTEM WITH ONE WAY CLUTCHES
79 20120095657 ROCKING ENABLED SHIFT-BY-WIRE SYSTEM
80 20120090948 POWERTRAIN PRESSURE CONTROL SYSTEM
81 20120090945 POWERTRAIN PRESSURE AND FLOW CONTROL SYSTEM FOR DOG CLUTCHES
82 20120090940 MICRO-ELECTRO-MECHANICAL-SYSTEMS BASED HYDRAULIC CONTROL SYSTEM FOR A DRY DUAL CLUTCH TRANSMISSION
83 20120090939 CLUTCH ACTUATION ASSEMBLY WITH SATELLITE PISTONS
84 20120090416 MICRO-ELECTRO-MECHANICAL-SYSTEMS BASED HYDRAULIC CONTROL SYSTEM FOR A WET DUAL CLUTCH TRANSMISSION
85 20120088632 SYSTEM AND METHOD FOR CONTROLLING AN AUTOMATIC ENGINE RESTART
86 20120088631 SYSTEM AND METHOD FOR CONTROLLING AN AUTOMATIC ENGINE STOP-START BASED ON TRANSMISSION CONDITIONS
87 20120088630 SYSTEM AND METHOD FOR CONTROLLING AN AUTOMATIC ENGINE STOP-START
88 20120082570 DUAL DRIVE PUMP SYSTEM
89 20120080003 DUAL DRIVE PUMP SYSTEM USING AN ENGINE STARTER MOTOR
90 20120078480 METHOD OF COOLING A DUAL CLUTCH TRANSMISSION
91 20120065849 SYSTEM AND METHOD FOR CONTROLLING POWER DOWNSHIFTS OF A TRANSMISSION
92 20120053800 TRANSMISSION OIL TEMPERATURE ESTIMATION SYSTEMS AND METHODS
93 20120051388 OUTSIDE AIR TEMPERATURE SENSOR DIAGNOSTIC SYSTEMS FOR A VEHICLE
94 20120029777 GEAR PRESELECT SYSTEMS FOR A DUAL CLUTCH TRANSMISSION
95 20120024107 TRANSMISSION WITH SPLASH LUBRICATION SYSTEM
96 20120021869 TORQUE TRANSMISSION ASSEMBLY WITH CLUTCHES
97 20120017716 SYNCHRONIZER ACTUATION ASSEMBLY
98 20120010046 NEGATIVE TORQUE UPSHIFT OFFGOING CLUTCH CONTROL SYSTEMS AND METHODS
99 20120000743 HILL-HOLDER ASSEMBLY FOR A TRANSMISSION
100 20110306456 GEAR TRANSFER DUAL CLUTCH TRANSMISSION
101 20110303049 ELECTRO-HYDRAULIC AND ELECTRO-MECHANICAL CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
102 20110303033 GEAR SELECTOR APPARATUS AND CONTROL FOR A VEHICLE TRANSMISSION
103 20110301791 ELECTRIC LAUNCH OF A HYBRID VEHICLE HAVING A BELT ALTERNATOR STARTER AND A DUAL CLUTCH TRANSMISSION
104 20110297499 WET DUAL CLUTCH TRANSMISSION CONTROL SYSTEM
105 20110295472 CONTROL SYSTEM AND METHOD FOR ADAPTIVE CONTROL OF TRANSMISSION FLUID OPERATING PRESSURES
106 20110290073 DUAL CLUTCH TRANSMISSION
107 20110288841 VEHICLE SIMULATION SYSTEM WITH SOFTWARE-IN-THE-LOOP BYPASS CONTROL
108 20110287986 METHOD FOR CONTROLLING A COEFFICIENT OF FRICTION
109 20110283830 CONCENTRIC SLAVE CYLINDERS TO ACTUATE CLUTCHES ON A DUAL CLUTCH TRANSMISSION
110 20110277533 SYSTEM AND METHOD FOR DETERMINING A VOLUME OF A TORQUE CONVERTER CLUTCH AND CALIBRATING A TRANSMISSION
111 20110272118 HYDRAULIC FLUID COOLING SYSTEM FOR A DUAL CLUTCH AUTOMATIC TRANSMISSION
112 20110264339 ACCUMULATOR WORKING VOLUME MANAGEMENT AND ADAPTATION
113 20110263383 SHIFT SEQUENCING SYSTEMS FOR A DUAL CLUTCH TRANSMISSION
114 20110257857 CONTROL SYSTEM AND METHOD FOR SYNCHRONIZATION CONTROL IN DUAL CLUTCH TRANSMISSIONS
115 20110257855 CONTROL SYSTEM AND METHOD FOR SHIFT FORK POSITION IN DUAL CLUTCH TRANSMISSIONS
116 20110257838 METHOD AND APPARATUS FOR DRY CLUTCH TEMPERATURE PREDICTION IN A DCT
117 20110252910 FORK POSITION AND SYNCHRONIZATION CONTROL IN A DUAL CLUTCH TRANSMISSION USING PRESSURE CONTROL SOLENOIDS
118 20110251011 HYBRID POWERTRAIN AND DUAL CLUTCH TRANSMISSION
119 20110246033 SELF ADJUSTING SHIFT CABLE ALIGNMENT FOR A TRANSMISSION RANGE CONTROL MODULE SYSTEM
120 20110245036 METHOD AND APPARATUS FOR CLUTCH CONTROL IN A VEHICLE HAVING AN ENGINE START-STOP POWERTRAIN AND A DUAL-CLUTCH TRANSMISSION
121 20110244970 ENGINE DRIVE PLATE CONNECTION
122 20110239859 SEAL FOR A PISTON ROD
123 20110238271 SHIFT METHOD FOR A DUAL-CLUTCH TRANSMISSION FOR VEHICLES
124 20110218719 POWERTRAIN OF A VEHICLE AND A METHOD OF OPERATING A POWERTRAIN OF A VEHICLE FOR CLUTCH PROTECTION
125 20110218716 PRE-SELECTION OF GEAR FOR A DOUBLE-CLUTCH TRANSMISSION
126 20110214532 DOUBLE CLUTCH WITH A DIFFERENTIATOR
127 20110209470 TRANSMISSION HYDRAULIC CONTROL SYSTEM HAVING A PUMP BYPASS VALVE
128 20110208396 REALTIME ESTIMATION OF CLUTCH PISTON POSITION
129 20110203401 MULTIPLEXED ELECTROMECHANICAL ACTUATOR MECHANISM
130 20110200781 FLUID DISPLACING TRANSMISSION FILLER
131 20110198180 HYDRAULIC CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
132 20110198179 LOW CONTENT CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
133 20110198178 HIGH EFFICIENCY HYDRAULIC TRANSMISSION CONTROL SYSTEM
134 20110192693 SINGLE ACTUATOR SELF-ADJUSTING DRY DUAL CLUTCH
135 20110186399 LEVER APPLIED DRY CLUTCH
136 20110185844 SEAL PROTECTOR ASSEMBLY
137 20110182034 COMPOSITE COVER WITH INTEGRAL HEAT SINK
138 20110180366 CLUTCH ASSEMBLY
139 20110180364 ELECTRO-HYDRAULIC CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
140 20110179620 SEAL PROTECTOR ASSEMBLY
141 20110174103 DOUBLE CLUTCH FOR CARS
142 20110173965 TRANSMISSION HYDRAULIC CONTROL SYSTEM HAVING A DUAL ELEMENT PUMP
143 20110168510 HYDRAULIC CONTROL SYSTEMS FOR DUAL CLUTCH TRANSMISSIONS
144 20110168469 TORQUE-FILL DURING GEAR CHANGE ON MANUAL TRANSMISSIONS WITH HYBRID VEHICLES AND VEHICLES WITH DUAL PROPULSION SOURCES
145 20110157758 CONTROL SYSTEM AND METHOD FOR TRANSMISSION SOLENOIDS
146 20110154945 DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES
147 20110147154 OIL SUPPLY SYSTEM FOR AN AUTOMATIC TRANSMISSION OF A VEHICLE, AN AUTOMATIC TRANSMISSION AND A VEHICLE COMPRISING THE OIL SUPPLY SYSTEM
148 20110146444 DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES
149 20110146443 DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES
150 20110146438 CONTROL SYSTEM FOR ELECTRONIC RANGE SELECTION IN A DUAL CLUTCH TRANSMISSION AND FOR A DIFFERENTIAL IN A TRANSMISSION
151 20110139564 CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
152 20110139279 HYDRAULIC FLUID SUPPLY SYSTEM HAVING ACTIVE REGULATOR
153 20110138956 ELECTRO-HYDRAULIC CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
154 20110138944 DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES
155 20110138943 DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES
156 20110132716 CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
157 20110132711 CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
158 20110120250 PUMP ARRANGEMENT
159 20110118074 MULTI-SPEED TRANSMISSION
160 20110112737 METHOD OF DETECTING FILLING OF HYDRAULIC CLUTCH
161 20110112715 SYSTEM AND METHOD FOR DETECTING AND RESPONDING TO PRESSURE LOSSES IN A HYDRAULIC AUTOMATIC TRANSMISSION
162 20110107864 ELECTROMAGNETIC SYNCHRONIZER ACTUATING SYSTEM
163 20110107860 DUAL CLUTCH MULTI-SPEED TRANSMISSION
164 20110100777 SELF-ADJUSTING MECHANISMS FOR CLUTCHES
165 20110100144 BARREL CAM SHIFT MECHANISM
166 20110094845 ACTUATION DEVICE FOR A DUAL CLUTCH TRANSMISSION
167 20110093172 GEAR ACTUATOR CONTROL SYSTEMS AND METHODS FOR DUAL CLUTCH TRANSMISSIONS
168 20110092335 HYDRAULIC CONTROL SYSTEMS FOR DUAL CLUTCH TRANSMISSIONS
169 20110088509 DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES
170 20110079481 DUAL CLUTCH
171 20110079480 SYSTEM AND METHOD FOR ATTACHING A DUAL CLUTCH TO A FLYWHEEL
172 20110077122 HYDRAULIC CONTROL SYSTEMS FOR DUAL CLUTCH TRANSMISSIONS
173 20110073428 NON-PLANAR PRESSURIZED OIL ROUTING
174 20110061487 DUAL FORK SINGLE SHIFT RAIL ASSEMBLY
175 20110056316 HYDRAULIC CONTROL SYSTEMS FOR DUAL CLUTCH TRANSMISSIONS
176 20110056315 HYDRAULIC CONTROL SYSTEMS FOR DUAL CLUTCH TRANSMISSIONS
177 20110056314 HYDRAULIC CONTROL SYSTEMS FOR DUAL CLUTCH TRANSMISSIONS
178 20110053697 DUAL CLUTCH FOR A TRANSMISSION HAVING MULTIPLE INPUT SHAFTS
179 20110048887 ACTUATION DEVICE HAVING WIPER SEALS FOR A DUAL CLUTCH TRANSMISSION
180 20110048222 PISTON ACTUATOR ASSEMBLY
181 20110048168 DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES
182 20110030506 SEVEN SPEED DUAL CLUTCH TRANSMISSION HAVING IMPROVED PACKAGING
183 20110029156 WIRELESS SENSOR SYSTEM FOR A MOTOR VEHICLE
184 20110028272 SYSTEM AND METHOD FOR AUTOMATIC TRANSMISSION SHIFT CONTROL
185 20110028271 HYDRAULIC CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
186 20110023638 GEAR ARRANGEMENTS FOR 7-SPEED DUAL CLUTCH TRANSMISSION
187 20110011194 REVERSE CHAIN DRIVE FOR MOTOR VEHICLE TRANSMISSIONS
188 20100319473 SEVEN SPEED DUAL CLUTCH TRANSMISSION WITH FOUR AXES OF ROTATION
189 20100317476 Hybrid Module for Interconnecting an Engine and a Transmission
190 20100314185 Hybrid Module for Interconnecting an Engine and a Dual-Clutch Transmission
191 20100294059 SEVEN SPEED DUAL CLUTCH TRANSMISSION
192 20100294058 SEVEN SPEED DUAL CLUTCH TRANSMISSION WITH FOUR AXES OF ROTATION
193 20100294057 SEVEN SPEED DUAL CLUTCH TRANSMISSION
194 20100288065 SEVEN SPEED DUAL CLUTCH TRANSMISSION WITH FOUR AXES OF ROTATION
195 20100288064 SEVEN SPEED DUAL CLUTCH TRANSMISSION
196 20100274453 METHOD FOR SYNCHRONIZED TRANSMISSION GEAR RATIO ENGAGEMENT
197 20100273599 DUAL CLUTCH TRANSMISSION
198 20100269612 DUAL CLUTCH TRANSMISSION
199 20100269610 DUAL CLUTCH TRANSMISSION
200 20100269609 DUAL CLUTCH TRANSMISSION
201 20100269608 DUAL CLUTCH TRANSMISSION
202 20100269607 DUAL CLUTCH TRANSMISSION
203 20100269606 DUAL CLUTCH TRANSMISSION
204 20100261575 MULTI-SPEED DUAL-CLUTCH TRANSMISSION FOR A HYBRID VEHICLE
205 20100257954 DUAL CLUTCH TRANSMISSION
206 20100255950 DUAL CLUTCH FIVE SPEED TRANSMISSION
207 20100255949 DUAL CLUTCH TRANSMISSION
208 20100251844 DUAL CLUTCH FIVE SPEED TRANSMISSION
209 20100251843 DUAL CLUTCH FIVE SPEED TRANSMISSION
210 20100251841 FIVE SPEED DUAL CLUTCH TRANSMISSION
211 20100251840 SEVEN SPEED DUAL CLUTCH TRANSMISSION
212 20100248885 DUAL INPUT PLANETARY FINAL DRIVE
213 20100243402 DEVICE FOR ACTUATING A DUAL CLUTCH TRANSMISSION
214 20100236359 DUAL CLUTCH MULTI-SPEED TRANSMISSION HAVING ONE COUNTERSHAFT AND A REVERSE SHAFT
215 20100236358 DUAL CLUTCH MULTI-SPEED TRANSMISSION
216 20100236344 DUAL CLUTCH MULTI-SPEED TRANSMISSION
217 20100190606 CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
218 20100186549 DUAL CLUTCH MULTI-SPEED TRANSMISSION
219 20100179024 HYBRID POWERTRAIN AND DUAL CLUTCH TRANSMISSION
220 20100148099 SHIFT ACTUATOR VALVE HAVING A PRESSURE DEAD BAND
221 20100147106 DUAL CLUTCH MULTI-SPEED TRANSMISSION
222 20100140036 COMPACT DRY DUAL CLUTCH MODULE
223 20100132492 HYBRID POWERTRAIN AND DUAL CLUTCH TRANSMISSION
224 20100099537 CONTROL SYSTEM FOR DUAL CLUTCH TRANSMISSION
225 20100072408 MULTIPLEXING CONTROL VALVE
226 20100050797 MULTI-SPEED TRANSMISSION WITH COUNTERSHAFT GEARING ARRANGEMENT
227 20100023230 TRANSMISSION WITH SUBSTANTIALLY IDENTICAL GEAR SETS FOR TORQUE LOAD SHARING
228 20090299585 GEAR AND MODE SELECTION FOR TRANSMISSIONS USING A SINGLE INPUT DEVICE
229 20090288378 AIR / OIL SEPARATOR FOR TRANSMISSIONS AND TRANSAXLES
230 20090280954 DUAL CLUTCH TORQUE CONVERTER CONTROL SYSTEM
231 20090275441 FLOW ACCUMULATOR AND CLUTCH CONTROL SYSTEM FOR AUTOMATIC TRANSMISSIONS
232 20090266191 MANUAL TRANSMISSION FOR A MOTOR VEHICLE
233 20090255370 DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES
234 20090255223 SYSTEM FOR DE-AERATING A HYDRAULIC FLUID IN A TRANSMISSION
235 20090250307 DUAL APPLY CLUTCH APPARATUS FOR COMPACT ELECTRO-MECHANICAL TRANSMISSION
236 20090249907 MULTI-SPEED DUAL CLUTCH TRANSMISSION WITH COUNTERSHAFT GEARING ARRANGEMENT
237 20090241714 HYDRAULIC ACTUATOR FOR TRANSMISSIONS HAVING REDUCED NOISE
238 20090209383 Transmission Clutch Control Apparatus And Method
239 20090098976 Hybrid Powertrain System Having Selectively Connectable Engine, Motor/Generator, and Transmission
240 20090031836 SYNCHRONIZER ACTUATING SYSTEM WITH SELECTIVES
241 20080295634 Shift Fork Actuation System For Control Of Synchronizer Position
242 20080236315 SYNCHRONIZER ACTUATING SYSTEM
243 20080217131 DUAL ONE-WAY CLUTCH ASSEMBLY
244 20080216908 CONTROL SYSTEM FOR A MULTI-SPEED TRANSMISSION
245 20080184831 APPARATUS AND METHOD FOR SECURING TRANSMISSION GEAR SYNCHRONIZERS TO SHAFTS
246 20080182700 MULTI-SPEED COUNTERSHAFT TRANSMISSION WITH A PLANETARY GEAR SET AND METHOD
247 20080178696 MULTI-SPEED TRANSMISSION WITH COUNTERSHAFT GEARING ARRANGEMENT
248 20080169166 Rocker Clutch Assembly
249 20080161154 MULTI-SPEED TRANSMISSION WITH COUNTERSHAFT GEARING
250 20080134817 MULTI-SPEED DUAL CLUTCH TRANSMISSION
251 20080047378 POWERTRAIN WITH TORQUE CONVERTER AND AXIALLY COMPACT SEVEN SPEED DUAL CLUTCH TRANSMISSION
252 20070278061 Selectable One-Way Rocker Clutch

tuxnharley

Impressive - but darn near "TMI".................

Runge_Kutta

http://papers.sae.org/2013-01-0232/
http://papers.sae.org/2013-01-9042/

Supermassive

God...the DCT fanboyism is hard to swallow. I really don't know why people are so hung up over DCT. Ford has made an 8 speed auto that every reviewer has said is better than DCT and isn't as complicated or expensive to produce. DCT is a stop gap technology, it addressed a problem that was perceived (slush boxes not shifting fast enough) and fixed it...at considerable cost and complexity. Now that Auto transmission tech has caught up, DCT is just an expensive alternative. They will remain on exotics that are going for that F1 race car feel, but the reality is the auto will probably end up making a resurgence and will prove itself more than equal to DCT.

I feel like people have this imaginary idea of what DCT actually provides. Yes you get quick shifts, but what else? They are not the most traffic friendly transmissions, and most people end up putting them in auto mode for daily driving so they don't lurch about at surface street speeds and parking lots. The clutch plates wear out...and are not cheap to replace...far more complicated than replacing a manual transmission clutch. The complexity of the transmission itslef can lead to very expensive repairs as well. I for one am glad that DCT is so unlikely in the Corvette as I don't want to deal with problems that exotic cars deal with on a car that costs thousands less. I also like the idea of still being able to work on my own cars. Manual and Auto tranny's are familiar to me, DCT is a whole different animal, sure i could learn how to work on it, but why change what works?

GM has to research DCT technology to figure out their competition, the fact that they do this does not mean they plan on producing one. Hell the A6 in the C7 is pretty damn good as many owners are proving at the 1/4 mile and apparently quite robust too.

Runge_Kutta

I am not advocating anything here; it is an unemotional, information-only post. This is, effectively, a continuation of this thread:

http://forums.corvetteforum.com/c7-g...technical.html

JerriVette

Do you have a link to reviewers positive impression of fords 8 speed transmission you speak of?

JoesC5

Not everyone is going with DCT. I see where the new Aston Martin Vantage S with a 6L V12 at 565 HP and 457 lb-ft of torque is using a 7 speed automated single clutch transmission that weighs 55 pounds less than their 6 speed manual transmission. It shifts in 70 milliseconds and has steering wheel mounted paddle shifters.

Of course, I have not driven one, but I kind of doubt if Aston Martin would be using a transmission that wasn't ironed out.

You ask "why change what works?". You do prefer the A6(or the new A8) over the A2 used in the original Corvette....don't you, even though there are performance versions of the A2 still in use, like in the 2014 COPO Camaro with either a supercharged destroked LS3 or a 427 LS7? So, you changed.

BeaZt

I've been reading that some autos have caught up and surpassed DCT

ChucksZ06

The vette does not need the dct...the 6 speed auto would be fine...with improvements. We are getting the 8 speed which is fine if the overall trans is better and shift speed are improved. The 8 speeds are definitely not necessary. As engine power increases less speeds are necessary for the same performance. It is marketing and fuel economy, nothing more. It is a shame the new technology is not being used to make a tough, lightwt auto with 4 speeds and 1 overdrive for the corvette. You could knock 75 lbs off the car and not lose a bit of performance. (That will get the eggheads going crazy)

JoesC5

The reason the Corvette is cost effective is because a huge amount of it's development cost and manufacturing cost is shared across other vehicles.

Improved fuel economy that is mandated by the EPA means those hundreds of thousands of pickup trucks GM sells every year plus the tens of thousands of Camaros and rear wheel drive Cadillac's require an 8 speed auto to replace the current 6 speed auto.

GM isn't going to maintain a separate manufacturing facility just to build a 4 speed automatic transmission with a single overdrive(or even an antiquated six speed auto) for around 15-20,000 Corvettes annually. Plus, GM HAS to make the Corvette as fuel efficient as possible in order to keep it in production. The suits are not going to let the Corvette drag down their CAFE and let the EPA impose fines across the board on GM.

LT1xL82

H82BFST

Unfortunately, in the real world, it comes down to what the masses PERCEIVE and will shell out the cash for. In an iPhone era, you have to compete on the latest buzzwords to be able to sucker the $$$ out of the masses. Any knowledge of those buzzwords not required (ever ask an iPhone user what Retina display really means for a good laugh) but must be a feel good in social/mainstream media circles. As unfortunate as that may be.

Fretka

I'm confused............ is a DCT the same as a sequential tranny?

JoesC5

I live in the real world and I don't have any idea what you are talking about. I have a flip phone and I pay $9 a month to use it and a land line. And in my real world, I also have three Corvettes(56, 64 & 09 Z06) in my garage plus a daily driver(supercharged). They may be antiques and obsolete, but they seem to get me from point A to point B.

I don't need buzzwords to function in my world. I shell out my money for what I want, not what I perceive to want.

ChucksZ06

Thanks for informing me of what anyone with an IQ above 80 already knows. How about explaining how clouds form. Stating the obvious is hardly new knowledge. BTW I agree with you 100% Joe. I suppose that is the reason for stating the obvious in the first place.

quick04Z06

People want DCTs because it is the F1 way, and F1 still represents the zenith of performance auto technology. Pretty simple, really.

jkrutch

New forum member (and long time Vette lover and owner) that joined specifically to reply to this thread. I just drove my first C7 today. I was impressed with the car. The interior has improved substantially. The exterior is truly stunning. However, the auto transmission was a total downer. IMO, the Vette needs a DCT.

My first Vette was in 1990 followed by several more with the last being a C5 Z06. From there I went on to a few 911 Turbos, Gallardos, a GT-R, and very recently a 458 Italia and a 911 S with a PDK for my daily commuter. My first dual clutch was the GT-R. It sucked. Fine on upshifts, horrible on downshifts. The eGear in the Lambo was excellent, but the DCT in the 458 takes it to an entirely different level. Based on what I am reading, it appears that many of the posters on this thread have not driven a DCT. The Vette will benefit tremendously with a DCT. The gas mileage will be fine as evidenced by my 911 which is my DD. I don't love Porsche's execution on the PDK at all. The tranny is a total dog with slow shifts unless you're pushing the car very hard. Then it's excellent. The gas mileage is around 27 on the highway and just under 20 in the city if I am driving normally.

I could see going back to the Vette, but not until there's a DCT. At least give us the option. BMW and Porsche have performance cars price competitive to the C7 with the Cayman S and upcoming M4.

I would suggest spending some driving time a DCT and then see what you think. Despite a post above, I really doubt most people with DCTs use auto mode. As someone who truly loves cars, I was reluctant to move away from manual gearboxes, but after living with a few automated manual boxes that were amazing, I doubt I would ever go back to an auto tranny in a sports car. Just my .02 worth....

Bill Dearborn

DCTs have better fuel economy numbers and will become ubiquitous over the next few years. They are direct drive transmissions Vs being driven through a torque convertor. They will be in light econo cars, light trucks and high power sports cars.

The auto with a torque convertor is the stopgap technology that we have been living with for 60 plus years.

Bill

glass slipper

Torque converters have a lock up clutch that makes them "direct drive" transmissions too. DCTs require a hydraulic pump/circuit too just like an auto so the inherent inefficiencies are the same for both. I don't see how you can make the statement DCTs have better fuel economy numbers when autos will likely get better MPG. The present day automatic has very little in common with autos from 60 years ago.

raj

Good points - echoes many of my sentiments as well. After four C5 and C6 Z06s, I made the switch to a GT-R and will not go back to either a traditional manual (not that this isn't engaging in a driver's car) or an auto. As you've stated, naysayers of the DCT should really experience one firsthand before maligning it. The data is all out there - Porsche doggedly stuck with the manual on the GT3 until this generation, finally admitting that this is the superior technology for street and track. Now, the Audi R8 and the Mercedes SLS also have proper DCTs. If the upcoming Z06 doesn't get one at least as an option, GM will have fallen seriously behind the eight ball.