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7584039 |
Method and device for the control of starting driving or switching processes on a motor vehicle
A method and a device for controlling starting, driving and shifting processes of a motor vehicle with a drive motor ( 2 ) and a gearshift ( 6 ), which can be brought into effective drive...
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7563200 |
Transmission system and method for controlling torque transmissions
A transmission system having a plurality of gear ratios, a selector assembly for selectively engaging the gear ratios, and a control system arranged to measure the amount of deformation caused by...
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7409885 |
Method for controlling a twin-clutch transmission
The invention concerns a method of controlling a twin-clutch transmission ( 10 ). When the torque transmitted in a first transmission path (C 1 , E 2 , Z 8 , Z 9 , S 2 , Z 3 , Z 4 ) reaches an...
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7412316 |
Method for setting a clutch torque
In a method for setting the clutch torque of a clutch, especially a clutch disposed in a drive train of a motor vehicle, the clutch is adjusted using a clutch actuator. This clutch actuator has at...
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7402124 |
Control method and apparatus for a transmission clutch system
A more efficient method for maintaining the hydraulic actuation of a selectively engageable torque transmitting device in a vehicle. The method includes generating a predetermined pressure level of...
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7386383 |
Differential limiting control apparatus for a vehicle and the method thereof
A differential limiting control apparatus for a vehicle has: clutch unit interposed between one rotational shaft and the other rotational shaft for variably transmitting a driving force between the...
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7357208 |
Control system for an at least temporarily four wheel-driven motor vehicle
A control unit of an at least temporarily four wheel-driven motor vehicle is provided. The control unit is arranged such that a displacement path for an actuator that actuates a transmission clutch...
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7338408 |
Hydraulic circuit and method for controlling said circuit
A method for controlling a hydraulic circuit for a twin-clutch transmission, wherein the hydraulic circuit comprises a first and a second clutch that can be hydraulically actuated, the pressures of...
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7228216 |
Automatic shift control apparatus and method for manual transmission
In automatic shift control apparatus and method for a manual transmission, at least one clutch is interposed between an engine and the manual transmission and a controller performs a feedback...
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7211028 |
Method of controlling a vehicle, apparatus for controlling the same, transmission and apparatus for controlling the same
Power train control unit 100 controls friction clutch 203 when shifting from one cogwheel row to the other cogwheel row, sets the target synchronous rotation speed based on the output rotation...
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7153234 |
Twin-clutch gearbox and method for controlling at least two clutches in a twin-clutch gearbox of a motor vehicle
A method for controlling at least two clutches in a twin-clutch gearbox of a motor vehicle, wherein at least one clutch is opened by at least one emergency valve. A twin-clutch gearbox of a motor...
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6971971 |
Method and system for an adaptation of an engagement of an automated clutch
A clutch is operated by an actuating pressure pressure during an engaging process of the clutch. The actuating pressure is controlled over time such that predetermined characteristics for an...
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6969339 |
Control equipment for a vehicle and control method thereof
A control device for a vehicle which has a function to reduce the change-speed shock when changing the speed by controlling the transmission of the vehicle. The control device performs the...
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6950734 |
Motor vehicle
In a method of operating a motor vehicle with an electronically controlled automatic clutch device, a control device and one or more data-storing devices for values of operating quantities and...
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6926638 |
Method for carrying out an automated clutch actuation during non-driven operational phases
The invention relates to a process for carrying out an automated clutch actuation of a motor vehicle with a drive engine and a transmission, connected to said drive engine by way of a clutch, in...
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6915890 |
Learning method for oncoming clutch fill level and volume
A method for adaptively learning clutch volumes and fill level to compensate for build tolerances and clutch wear includes increasing a fill level of a clutch during an oncoming fill phase of a...
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6878095 |
Automatic-clutch control system of automatic clutch type transmission
An automatic-clutch control system of a transmission for a vehicle is arranged to calculate a deceleration of the vehicle when shifting is not being executed, when an automatic shift mode is being...
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6871129 |
Control system of a continuously variable transmission for a vehicle and method
A control system of a continuously variable transmission for a vehicle compensates for delays in an estimated input torque T INE based on a gradient value (variation) of the estimated input torque...
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6860834 |
Engaging force control of lockup clutch
A controller ( 12 ) controls the engaging force of a lockup clutch ( 2 c ) connecting an engine ( 1 ) and an automatic transmission ( 3 ) via an engaging force regulating mechanism ( 11, 13 ). The...
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6840888 |
Hydraulic-electronic control systems for marine vessels
Systems and methods for controlling shift and throttle of an electronically controlled power train are disclosed. The system includes a throttle or shift controller having an operating range. An...
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RE38615 |
System and method for decreasing ratio changing time in electronically enhanced powertrain systems
A system and method for decreasing the time required to complete a ratio change in an electronically enhanced powertrain system is provided. The powertrain system includes a number of devices for...
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6702715 |
Power transmission
A power transmission comprises an engine E with a plurality of cylinders, a belt-type continuously variable transmission CVT, which changes the rotational speed being transmitted from the engine, a...
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6702716 |
Power transmission
A power transmission comprises a continuously variable transmission CVT, which transmits a rotational driving force from an engine E, a starting clutch 5 , which variably sets the transmission...
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6679134 |
Twin-clutch transmission system
A transmission system is comprised of a twin-clutch transmission which comprises a first clutch for selecting a first gear-ratio group and a second clutch for selecting a second gear-ratio group. A...
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6671602 |
Method for manually stipulating the transmission ratio of a continuously variable transmission (CVT)
The invention relates to a method for manually stipulating the transmission ratio of a continuously variable transmission (CVT) for a motor vehicle. The CVT comprises a control device, a shifting...
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6616572 |
Hill hold control apparatus for vehicle
A hill hold control apparatus of an automatic transmission having a plurality of drive gears mounted on an input shaft, a plurality of driven gears meshing with the respective drive gears and...
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6475114 |
Gear-mesh type automatic transmission system
A gear-mesh type automatic transmission system capable of controlling clutch coupling speed so as to mitigate shock likely to occur upon changeover of speed stage regardless of not only...
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6463375 |
Automatic start controlling apparatus of internal combustion engine and detector for detecting engagement of clutch
An automatic start controlling apparatus for automatically starting an internal combustion engine. A transmission is coupled to the engine. The transmission has a clutch, which is actuated by an...
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6450918 |
Synchronous meshing type automatic transmission control system
A synchronous meshing type automatic transmission control system is provided to be capable of shortening a time for gear change without generation of noises from gears and degradation of a...
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6445991 |
Method for controlling disengageable clutches for starting and for shifting variable-speed gears in automobiles
Control of shiftable clutches by a clutch control signal that is a function of the difference between the actual and desired engine rotational speeds and of the gradient of the actual engine...
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6440039 |
Torque-transmitting system
A torque-transmitting system for vehicles has a main drive clutch operable by means of a clutch-actuator, a transmission, a shift mechanism for setting the transmission ratio, a selector lever...
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6424903 |
Vehicle clutch control device
A control device for controlling a clutch of a vehicle wherein an actuator is connected to and provides for operating the clutch, the work position of which is determined by a position sensor which...
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6386351 |
Method for regulating the transmission of torque in power trains
A method of monitoring a torque transmission system with a manually switchable gearbox in the power train of a motor vehicle involves the utilization of at least one sensor unit at the input side...
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6375596 |
Control to determine input shaft direction of rotation
A method/system for controlling an automated mechanical transmission system ( 10 ) utilized on a vehicle. To protect from driveline damage due to improper clutch engagement during vehicle launch...
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6364809 |
Clutch control system for upshift of an electro-mechanical automatic transmission
An electro-mechanical clutch actuator system is provided for a transmission having dual input shafts with respective clutches and with a plurality of drive gears rotatably mounted to each input...
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6318530 |
Pressure control apparatus and method for controlling a hydraulic clutch device
A pressure control apparatus and method are provided for controlling hydraulic clutches of a backward and forward drive switching device mounted in a transmission of a working vehicle such as a...
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6227998 |
Power transmission arrangement for vehicle
A power transmission arrangement for a vehicle adapted to transmit a drive power from an engine to a transmission via a wet multi-plate clutch. An electronic controller automatically disengages and...
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6217479 |
Converterless multiple-ratio automatic transmission
A multiple-ratio transmission with planetary gearing and a friction clutch and brake for controlling relative motion of the gearing to establish multiple driving ratios between an internal...
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6171213 |
Automatic clutch
An automatically controllable clutch is arranged between the engine and the driving wheels in the transmission line of a motor vehicle. A transmission can be shifted arbitrarily or manually between...
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6148975 |
Vehicle transmission system including clutch control to eliminate neutral idle gear rattle
A vehicle transmission system includes an automated clutch operator. An electronic controller determines when the transmission is in a neutral condition and controls the automated clutch operator...
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6095943 |
Arrangement for operating a friction clutch
An arrangement for operating an automated friction clutch in a mechanical drive train of a motor vehicle driven by an internal combustion engine. A clutch operator actuator, by means of which a...
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6085607 |
Power transmission device for vehicle
To perform simple and precise shift changes without using a change pedal and a change lever. In conjunction with the engagement and disengagement of a transmission clutch, a shift spindle rotates a...
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6086514 |
Clutch control method for determining clutch kiss-point during running conditions
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6042503 |
Apparatus for actuating torque transmitting systems
There are disclosed a method of and an apparatus for automated actuation of a friction clutch or another torque transmitting system in the power train of a motor vehicle. An actuator for the torque...
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6035734 |
Control system imposing automatic mode absent driver manual shift request
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6026699 |
Shuttle shift control using both a directional clutch and a transmission clutch
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6019703 |
Transmission assembly for vehicle with torque converter clutch and method for engaging this clutch
A transmission assembly and method for controlling a torque converter of a transmission assembly in which an electronic controller monitors the load on the vehicle power train in addition to a...
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5964675 |
Gear ratio shift control system for automatic vehicle transmission
A system for controlling gear (gear ratio) shifting in an automatic transmission mounted on a vehicle, including a shift control means for generating a shift command to upshift from one gear (gear...
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5819585 |
Vehicle transmissions with automatic safety override when in manual mode
A vehicle transmission having a main drive clutch (14), a multi-ratio gearbox (12), a gear engaging mechanism (25) for engaging the operative ratio of the gearbox, and a manually operable gear...
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5782710 |
Automatic clutch control
In a method of controlling an automatic clutch disposed between a motor, especially an internal combustion engine, and the drive train of a vehicle which includes an arbitrarily operable...
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