|
Match
|
Document |
Document Title |
|
|
7578769 |
Lockup control device
Excellent fuel consumption and drivability are achieved by properly controlling the lockup-canceling timing in a vehicle with an automatic transmission equipped with a torque converter having...
|
|
|
7563201 |
Transmission system
A transmission having a plurality of gear ratios, a selector assembly for selectively engaging the gear ratios, a clutch device for selectively transmitting drive from a drive source to the...
|
|
|
7530924 |
Torque converter bypass clutch control
A method of using a torque converter bypass clutch to launch a vehicle, mitigate transient vibration, and mitigate vehicle natural frequency harshness. The method uses the torque converter when the...
|
|
|
7524255 |
Tip-in bump reduction methods and systems
A torque converter bump control system is provided. The system includes: a gain module that computes a torque converter gain based on a speed ratio; an increased gain module that computes an...
|
|
|
7510507 |
Torque converter clutch virtual adapt learn method and system
A method of adapting a pressurized fluid supply to a torque converter clutch is provided. The method includes: learning a first pressure point related to an average of ramp pressure and an average...
|
|
|
7503877 |
Turbine offset matching control system
A control system for enabling an engine to operate in a deceleration fuel cutoff (DFCO) mode is provided. The system includes: an enable module that selectively enables a DFCO mode based on an...
|
|
|
7377373 |
Hydraulic control apparatus for hydraulic power transmission with lock-up clutch
Engagement, disengagement, and slip of a lock-up clutch can be controlled using two valves that are a lock-up relay valve and a linear solenoid valve. A lock-up control valve employed in a...
|
|
|
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...
|
|
|
7361121 |
Control device and method for input clutch of work vehicle
A controller serving as determination device determines whether or not a rising speed of the clutch pressure of the input clutch is less than a limit rising speed of the original pressure. A...
|
|
|
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...
|
|
|
7347802 |
Clutch control apparatus for hybrid vehicle
A clutch control apparatus for a hybrid vehicle ( 1 ) having an engine ( 2 ) and a motor ( 3 ) as power sources, and an output shaft ( 13 a ). The clutch control apparatus includes a clutch device...
|
|
|
7302330 |
Torque converter clutch dynamic control
A method of dynamically controlling pressure to a torque converter clutch (TCC) of a torque converter coupled to a transmission is provided. The method includes: monitoring throttle position;...
|
|
|
7294092 |
Control of coasting downshifts in an automatic transmission for motor vehicles
A method for controlling a coasting downshift in an automatic transmission having a torque converter that includes an impeller driveably connected to an engine and a turbine hydrokinetically...
|
|
|
7282009 |
Control of lock-up clutch
A lock-up clutch control device, which controls a lock-up clutch ( 6 ) installed in a torque converter ( 5 ) interposed between an engine ( 3 ) and a transmission ( 4 ) used with a vehicle, is...
|
|
|
7264574 |
Torque converter lockup capacity control device
A torque converter lockup capacity control device is configured to conduct coast-time lockup control during coast-running in order to prevent engine stall, shock from occurring in the output shaft...
|
|
|
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...
|
|
|
7181327 |
Method and apparatus for controlling fluid supply to a clutch pack of an automatic transmission
When an engine is restarted after a predetermined period of being stopped oil is supplied to a clutch pack for a 2–3 and/or 3–4 shift while a transmission is engaged in the first speed for the...
|
|
|
7179199 |
Control system for vehicle having an engine capable of performing and stopping combustion in each cylinder
A control system for a vehicle includes an engine switch control unit for switching the operating condition of the engine between the all-cylinder operating condition and the partial-cylinder...
|
|
|
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...
|
|
|
7085640 |
Lockup control of torque converter
A tightening force of a lockup clutch ( 2 ) exerted between a pump impeller ( 1 a ) connected to an engine ( 21 ) and a turbine runner ( 1 b ) connected to an automatic transmission ( 23 ) is...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
6942597 |
Lockup control or torque converter
An engaging force of a pump impeller ( 1 a ) connected to an engine ( 21 ) and a turbine runner ( 1 b ) connected to an automatic transmission ( 23 ) is controlled by a controller ( 5 ). The...
|
|
|
6878085 |
Power distribution control apparatus and control method
In a differential limiting torque control section, a target differential rotation speed between front and rear drive shafts is established according to a dial position inputted by a driver of a...
|
|
|
6839618 |
Driving force transmission control system for automotive vehicle and the method thereof
A center differential limiting control unit calculates and sets a vehicle speed, a target difference in a rotational speed between front and rear axle shafts, a control start difference in the...
|
|
|
6780140 |
Lockup control system of automatic transmission
In a lockup control system of an automatic transmission with a lockup torque converter, a controller pre-stores a predetermined lockup control map including at least a predetermined coast slip...
|
|
|
6746368 |
Vehicle speed control system for automotive vehicle
A vehicle speed control system is adapted to a vehicle equipped with an automatic transmission with a torque converter. The vehicle speed control system detects whether the automatic transmission...
|
|
|
6687586 |
Evaluation of transmission data
In a method for determining evaluation data for transmissions in vehicles, data is measured in the vehicle via sensors, the measured data is used to form intermediate data specific to the vehicle...
|
|
|
6656084 |
Apparatus for controlling clutch between vehicle engine and transmission
A control apparatus for feedback-controlling an engaging action of a clutch disposed between an engine and a transmission of an automotive vehicle, wherein an engaging force control device is...
|
|
|
6648796 |
Method for controlling a damper clutch of an automatic transmission
A method for controlling a damper clutch release control system which performs duty control in releasing a damper clutch for down-shifting in a sports mode decreasing gear-shift shock, is provided....
|
|
|
6490944 |
Method for controlling a drive train of a vehicle having two power-shift clutches
In a method for controlling a drive line of a vehicle, in which a power-shift clutch is engaged for torque transmission while driving, the point of engagement of a power-shift clutch that is...
|
|
|
6478717 |
Damper clutch control method for automatic transmission
A damper clutch control method comprising the steps of detecting a throttle opening, an engine rpm and an turbine rpm; performing lift-foot-up shifting if throttle opening is abruptly decreased;...
|
|
|
6390950 |
Controller for use with automatic transmission provided with lockup mechanism and memory medium storing method for control of automatic transmission
In an apparatus for controlling an automatic transmission which is provided with a torque converter having a fluid coupling unit for coupling driving force to a transmission through fluid coupling...
|
|
|
6292726 |
System and method for controlling the switching on of ancillary equipment driven by an engine
A method and system for controlling the switching in of ancillary equipment driven by an engine of a vehicle, the ancillary equipment being arranged to be driven by the engine until at least a...
|
|
|
6217481 |
Slip control system for torque converter
A slip control system for a torque converter with a lockup clutch comprises a controller that outputs a slip control signal to a slip control actuator of the lockup clutch to adjust an actual slip...
|
|
|
6139472 |
Lockup control system for automatic transmission
A lockup control system controls a lockup state of the automatic transmission employing a torque converter with a lockup clutch. The lockup control system executes a lockup clutch engagement...
|
|
|
6139466 |
Torque converter lock-up control for automatic transmission having manual mode
A torque converter lock-up clutch controlling system for a vehicle drive train inputs a vehicle speed signal and an engine load signal. The vehicle drive train includes an automatic transmission...
|
|
|
6132336 |
Slip control apparatus for torque converter
A slip control apparatus for a torque converter with a lockup clutch controls a slip rotation speed between input and output elements of the torque converter so as to be set at a slip rotation...
|
|
|
6132335 |
Method of and apparatus for utilizing and operating a hydrokinetic torque converter with lockup clutch
The power train of a motor vehicle employs a torque transmitting apparatus having a hydrokinetic torque converter with a lockup clutch and a torsional damper between the output member of the clutch...
|
|
|
6125316 |
Method of and system for deciding failures of automatic transmission
A gear shift failure of an automatic transmission to a wrong gear other than an indented gear is made by estimating slippage theoretically caused in a torque converter on the basis of an engine...
|
|
|
6102831 |
System for controlling engaging and disengaging operations of releasable coupling device placed in automotive power train
A releasable coupling control system in combination with an electronic engine control unit executable a fuel cutoff mode during vehicle deceleration and re-startable a fuel-supply recovery mode as...
|
|
|
6099436 |
Lock-up clutch control apparatus
The lock-up clutch control apparatus is provided with reference values for operating variations of the accelerator pedal predetermined for respective gear positions. The lock-up clutch control...
|
|
|
6094611 |
Fuzzy control method of damper clutch
A fuzzy control method of a damper clutch and, more particularly, a fuzzy control method enhances engine brake effect by directly connecting a pump to a turbine by engaging the damper when a shift...
|
|
|
6086513 |
Control device for hydraulic system of a continuously variable transmission
In a fluid pressure control system for a continuously variable transmission, a valve for regulating a torque converter pressure is a pilot actuated valve having a pressure increasing side pilot...
|
|
|
6085136 |
Torque converter lockup strategy
According to a torque converter lockup control, a lockup actuator, including a lockup solenoid, is operative responsive to an output command signal issued by a controller to adjust lockup clutch...
|
|
|
6074326 |
Lock-up control system for vehicle drivetrain with torque converter
An engine-transmission drivetrain includes a torque converter situated between the engine output shaft and the transmission. The torque converter includes a lock-up clutch. A speed sensor, which...
|
|
|
6059690 |
Control system for vehicle automatic transmission
A control system of a lockup clutch of a torque converter of a vehicle automatic transmission. A basic manipulated variable is determined in response to the vehicle operating condition in...
|
|
|
6050919 |
Lock-up slip control device for automatic transmission
A control device for an automatic transmission having a hydraulic power transmission with a lock-up clutch includes a device for setting a predetermined pressure that is less than a pressure at...
|
|
|
6049752 |
Automatic transmission lockup control apparatus
A lockup control apparatus for use with an automotive vehicle including an engine, an automatic transmission and a torque converter having a lockup clutch operable on a variable engagement force to...
|