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7632214 |
Controlling method for damper clutch of automatic transmission and system thereof
A controlling method and system for a damper clutch of an automatic transmission control a damper clutch release condition according to a direct connection status of a damper clutch. The...
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7632215 |
Transmission downshift swap-shift control
An automatic transmission for a vehicle includes a main box controlled using a series of clutches, and an underdrive assembly controlled using a series of clutches and at least one overrunning...
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7602594 |
Motor control apparatus and motor control method
To provide a motor control apparatus, including a rotational number detecting means for detecting the rotational number of a motor; a current detecting means for detecting a motor current; a...
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7593799 |
Torque transmission device
A torque transfer device in a motor vehicle, used for variable transfer of torque from a first shaft associated with a first wheel pair to a second shaft associated with a second wheel pair. A...
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7575083 |
Automatic transmission for a motorcycle
In order to reduce the influences of engine heat and vibration on a shift actuator, a shift actuator is disposed apart from the engine and the transmission on a vehicle. In particular a...
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7537545 |
Method for controlling an automatic transmission and automatic transmission
A method for controlling an automatic transmission of a motor vehicle, namely for controlling a static disengagement function, such that if the motor vehicle's speed is lower than a limiting speed...
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7488272 |
Method for the actuation of at least two clutches transmitting torque in parallel in the drive train of a motor vehicle and transmission control unit
A method actuates two clutches which transmit torque in parallel in a drive train of a motor vehicle and have different successive fixed speed transmissions as gear stages between a drive shaft and...
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7488271 |
Control method of magnet type fan clutch
A control method of a magnet type fan clutch is provided to improve engine performance, fuel economy, engine life, and vehicle acceleration and to reduce fan noise, and optimize fan horsepower. The...
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7470215 |
Vehicle drivetrain with secondary clutch
A drivetrain including a primary clutch and a secondary clutch is well-suited for use in a single-speed vehicle. The primary clutch may be automatically-engaging or manually-engaging. The secondary...
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7429232 |
Drive train and method for controlling a drive train
A method for controlling a drive train of a motor vehicle, to a method for controlling a clutch device, and to a drive train of a motor vehicle, the drive train being operated in a normal load...
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7366601 |
Automatic transmission having torque converter with lockup clutch and method of controlling same lockup clutch
When a downshift instruction has been detected, the oil pressure of a lookup clutch is controlled, and the state of operation of the automatic transmission is detected. If a starting condition has...
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7361120 |
Control of lock-up clutch
A lock-up clutch control device which controls a lock-up clutch ( 6 ) provided in a torque converter ( 5 ) interposed between an engine ( 3 ) and a transmission ( 4 ) used with a vehicle, is...
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7356400 |
Clutch control apparatus and method
A clutch control apparatus for a power transmission system including an input rotating member and an output rotating member. The clutch control apparatus includes a friction clutch, and a control...
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7316630 |
Control method and apparatus for a continuously variable transmission
A control apparatus for a continuously variable transmission ensures good acceleration performance during staffing operations, and following an engine stall occurring before a gear ratio of the...
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7314427 |
Driving force transmission apparatus
A driving force transmission apparatus is provided for a twin clutch transmission with two clutches, that are controlled a gear change control without a torque cutting out to reduce slapping sounds...
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7267634 |
Drive device for working vehicle and method of controlling the drive of working vehicle
The present invention provides a drive device for a working vehicle whereby gear change shock during the forward/reverse running changeover action can be reduced while achieving shortening of cycle...
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7255664 |
Starting clutch control device
A starting clutch control device includes a starting clutch disposed between an engine and a transmission installed to a vehicle. A torque coefficient setting section sets a torque coefficient...
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7226383 |
Control device for hybrid vehicle
A hybrid vehicle is driven by one or both of an engine and a drive motor. The engine is started by a power generating motor, and power generated by the engine is supplied to a battery. An...
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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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7220216 |
Lock-up clutch control device
A lock-up clutch control device for controlling a lock-up clutch mechanism provided to a torque converter is including an estimator means for estimating a contact timing of a friction material...
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7217223 |
Vehicle with clutch for transmission of torque output of motor
A vehicle comprises a motor ( 4 ) and a wet clutch ( 12 ) for transmission of torque output of the motor to road wheels of the vehicle and transmission of road load from the road wheels to the...
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7158873 |
Method of controlling an automated clutch of a vehicle
A method of controlling an automated clutch of a vehicle includes the step of adapting a characteristic curve of the clutch through an electronic clutch management system. The adaptation is...
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7153235 |
Running control device for industrial vehicle
The present invention provides a running control device for an industrial vehicle that has superior driving operability and that allows easy starting and stopping on road surfaces that have sloped...
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7128690 |
Method for controlling magnet type fan clutch
Provided is a method for controlling a magnet type fan clutch, by which method engine performance, fuel efficiency, engine life, vehicle acceleration capability and other properties of a magnet...
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7094179 |
Hydraulic transmission apparatus with lockup clutch
A hydraulic transmission apparatus with a lockup clutch has a pump impeller, a turbine runner, a side cover, a lockup clutch, a clutch piston, a lockup control unit, a frictional engagement unit...
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7066863 |
Drive train for a mobile vehicle and method for the control of the drive train
In a drive train for a working machine, in particular, a wheel loader, the driving speed is preselected via a driving pedal ( 11 ) and the working hydraulic system is actuated via a selector lever...
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7044890 |
Control apparatus and method for automatic transmission
A control apparatus for an automatic transmission, which executes a neutral control by which an input clutch that transmits driving force from a driving source to the automatic transmission is...
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7044889 |
Control system for a start-up element of an automated or automatic transmission at limp home mode
A control system, method for control, and control software for operating a startup shift element of an automated motor vehicle transmission or automatic transmission capable of electro-hydraulic or...
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7041031 |
Calculation of automated friction clutch urge torque on grades
The invention relates to a method for calculating a modification to the predetermined amount of torque needed to provide an urge to move sensation for a vehicle, the modification to take account of...
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7029422 |
Ergonomics safety warning device and method to prevent clutch burning
This invention will therefore provide a tool to assist the rig operator in perfecting his/her rig operation skills. Disclosed herein is an apparatus and method for minimizing slippage on the drum...
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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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6945909 |
Torque distribution control device for four-wheel drive vehicle
A torque distribution control device for a four-wheel drive vehicle having a torque distribution device for distributing the drive power transmitted from an engine to either of the front wheels or...
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6942598 |
Drive control apparatus for a vehicle and control method thereof
A drive control apparatus for a vehicle including an engine which generates power using combustion of fuel; a hydrodynamic power transmission device which transmits an output of the engine via...
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6939265 |
Method of controlling a motor vehicle with an automated clutch device
A method of controlling a motor vehicle with an automated clutch is provided and includes the steps of: (a) detecting the vehicle speed, (b) detecting if the brake and/or the gas pedal is actuated,...
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6939268 |
Vehicle transmission system with coast controls
A vehicle transmission system includes a transmission component that has an engaged condition where torque can be transferred from a vehicle engine to a drive component, and a non-engaged condition...
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6935990 |
Safety device for power takeoff for use in automobile and method for controlling the same
A safety circuit for power takeoff (PTO) for use in an automobile and a method for controlling the same is disclosed. The safety circuit determines whether a PTO unit, driving a pump, and a...
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6932742 |
Method of and apparatus for compensating for the influence of changes of rotational speed upon the characteristic curve of a clutch
The invention relates to a method of compensating for the influence of changes of speed of a rotary component of an adjustable clutch upon the control torque characteristic curve of the clutch in...
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6926640 |
Transmission control system of automatic transmission for vehicle
A transmission control system, includes: 1) a high speed side friction element for establishing a high speed side change gear; and 2) a low speed side friction element for establishing a low speed...
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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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6893379 |
Hydraulic pressure control apparatus for vehicular automatic transmission and control method for hydraulic frictional engagement device of vehicular automatic transmission
When it has been determined that control for a predetermined upshift has been started while an accelerator pedal was not being depressed, and that a factor that changes an input torque of an...
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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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6869382 |
Double-downshift gear strategy for a dual clutch automatic transmission
A method of double-downshifting from a first gear ratio to a second gear ratio includes the steps of first reducing torque transfer from a first clutch to a first driven gear. Engine speed then...
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6846269 |
Control apparatus and method for controlling drive train elements
A method and apparatus for controlling a motor vehicle drive train component. The motor vehicle includes an engine control device and a clutch control device. The method and apparatus control the...
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6755766 |
Vehicle power transmission device
It is an object of the present invention to achieve stabilization of clutch transmission torque at the point of half clutch completion during a garage shift upon vehicle start up, and to thereby...
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6676562 |
Automatic clutch engagement controlled by engine speed
In a vehicle transmission system including a transmission having an input shaft driven by an engine, an output shaft, and a clutch for controlling the transfer of torque from the input shaft to the...
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6656090 |
Control method and system for vehicle
A method for controlling a vehicle having a first clutch mounted between an engine and a gear drive transmission, and dog clutch type torque transmission means disposed between an input shaft and...
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6634983 |
Vehicle clutch control device
A vehicle clutch control system that can prevent an engine ( 222 ) from racing when a friction clutch ( 304 ) is disengaged and engaged. When a driver stamps an accelerator pedal ( 206 ) over a...
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6561948 |
Control for transmission system utilizing centrifugal clutch
A control system/method for controlling a vehicle drivetrain ( 10 ) including an engine ( 18 ), a transmission ( 12 ) and, a centrifugal clutch ( 20 ) for drivingly coupling the engine output ( 136...
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6553303 |
Driving force distribution control system and vehicle having the driving force distribution control system
A correction coefficient setting unit calculates as a difference in an actual revolution speed the difference between the actual revolution speed of a front driving axle and the actual revolution...
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6547699 |
Method and apparatus for diagnosing a malfunction of a clutch actuator
In a method and apparatus for diagnosing a malfunction in a clutch actuator of a motor vehicle, the actual position of the clutch actuator is measured by a position sensor. Simultaneously, an...
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