Matches 51 - 100 out of 156 < 1 2 3 4 >


Match Document Document Title
US20080172162 Adaptive Retarder Control Method and Apparatus  
A vehicle transmission retarder control apparatus is provided including an engine, a throttle, a brake, a transmission having an output member with an actual transmission output speed, a speed...
US20090112421 METHOD AND APPARATUS TO CONTROL HYDRAULIC LINE PRESSURE IN AN ELECTRO-MECHANICAL TRANSMISSION  
A method for controlling hydraulic line pressure of a hydraulic control system in transmission includes determining an available flow from a plurality of hydraulic pumps, determining a flow...
US20090254256 TRANSMISSION OIL MEASUREMENT SYSTEM AND METHOD  
A system includes a pressure sensor that measures a transmission fluid pressure at a first fluid cavity of a transmission. A transmission control module receives the transmission fluid pressure,...
US20140088845 SHIFT CONTROL DEVICE FOR AUTOMATIC TRANSMISSION  
An automatic transmission shift control device include a controller that is programmed to shift an automatic transmission by issuing a command for switching an interference shift element from an...
US20110087410 MOTOR VEHICLE WITH INSERTABLE FOUR-WHEEL DRIVE  
A motor vehicle with insertable four-wheel drive, including an engine having a crankshaft, a pair of main driving wheels constantly connected to the crankshaft by interposition of a gearbox...
US20130282245 Method for Controlling an Automatic Transmission  
The invention relates to a method for controlling an automatic transmission, more particularly a method for controlling gear changes in an automatic transmission of a motor vehicle driven by an...
US20080027614 Method of Controlling a Continuously Variable Transmission  
There is described a method of controlling a continuously variable ratio transmission of the type comprising a continuously variable ratio unit (“variator”) which has rotary input and output...
US20150012193 Transmissions with Torque and/or Speed Sensor Arrangements  
A transmission includes sensors positioned adjacent respective pairs of magnetized bands on a shaft of the transmission for detecting magnetic flux emanating from the bands in response to torque...
US20140074365 Shift Control Method for a Vehicle with DCT  
A shift control method includes: a step for confirming whether a high rank shift order is made during a take up control; a step for determining whether a difference between rotation number of an...
US20080154469 Method of operating a clutch during a vehicle launch  
A method of operating a clutch during vehicle launch including increasing a first hydraulic pressure in an inner chamber from a first to a second level; decreasing a second hydraulic pressure in...
US20100076654 TORQUE SENSOR BASED VEHICLE DIRECTION DETERMINATION  
A control system of a vehicle comprises a torque sensor, a vehicle direction module, and a control module. The torque sensor determines a driveline torque signal based on a torque produced by a...
US20100131163 HYDRAULIC VEHICLE  
A hydraulic vehicle provided with a running-system hydraulic unit 10 that includes a hydraulic pump 11 being configured to be driven by an engine E, a hydraulic motor 12 being configured to be...
US20090171543 SHIFT CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION  
A shift controller controls a downshift to a low shift speed, spaced apart from a high shift speed by two or more steps, through an intermediate shift speed, by first releasing first and second...
US20090023552 AUTOMATIC TRANSMISSION CONTROL APPARATUS  
An automatic transmission control apparatus is provided with a brake switch, a brake fluid pressure detecting section, a range position detecting section, a neutral control section and a...
US20130060435 Control for Managing Actuator Output Pressure Applied to a Torque Transmitting Mechanism of a Multi-Speed Transmission  
A method for managing torque transmitting mechanism actuator output pressure under low supply pressure conditions is provided. The method is executable to control engagement of a torque...
US20130110335 METHOD AND DEVICE FOR AUTOMATICALLY CONTROLLING THE GEAR OF AN ELECTRIC BICYCLE TRANSMISSION  
A method for automatically controlling the gear of a gearshift of an electric bicycle. At least one actual operating parameter of a drive component of the electric bicycle is recorded by recording...
US20130311057 Closed-Loop Torque Phase Control for Shifting Automatic Transmission Gear Ratios Based on Friction Element Load Estimation  
A closed loop shift control apparatus and method based on estimated torque in friction elements controls a torque transfer phase when shifting from a low gear configuration to a high gear...
US20130325272 Variable Transmission and Method  
A powertrain includes an engine, a transmission having a first input connected to an engine output shaft, and a variator. The variator includes a pump connected to the engine output shaft and a...
US20140032066 CONTROL APPARATUS FOR CONTINUOUSLY VARIABLE TRANSMISSION  
In an apparatus for controlling a continuously variable transmission, a transmission ratio, an input shaft rotational speed and an input torque, etc., are detected, an axial thrusts of the drive...
US20100087997 CONTROL DEVICE AND CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION  
A transmission controller determines whether an oil temperature in the CVT is higher than a high oil temperature control starting temperature or not. If it is determined that the oil temperature...
US20130151094 LINE PRESSURE CONTROL METHOD FOR A TRANSMISSION HAVING A DOG CLUTCH  
A method of controlling the system pressure in an automatic transmission having interlocking shifting elements in which, during shifts and gear engagement and gear disengagement processes...
US20090112422 METHOD AND APPARATUS TO CONTROL LOGIC VALVES FOR HYDRAULIC FLOW CONTROL IN AN ELECTRO-MECHANICAL TRANSMISSION  
A method for controlling an electromechanical transmission includes monitoring a current hydraulic circuit oil temperature, monitoring a current state of flow management valves, monitoring a...
US20110313630 Calibrating transmission motor torque  
The described system and method allow a controller to calibrate a transmission variator of a continuously variable transmission for torque control by obtaining static and dynamic qualities and...
US20120109476 METHOD FOR OPERATING A DRIVE TRAIN  
A method of operating a drive-train which comprises a drive aggregate, a transmission and a starting clutch connected between the drive aggregate and the transmission such that during rolling and...
US20080082242 Mode selection and switching logic in a closed-loop pulse width modulation valve-based transmission control system  
A pulse width modulated (PWM) valve-based hydraulic control system is disclosed. In one embodiment, a feedback control system includes a controller that receives a pressure command signal and a...
US20100057316 CONTROLLER FOR AUTOMATIC TRANSMISSION  
In a controller for a belt-type continuously variable transmission including a hydraulic actuator that changes a groove width of a primary pulley, a hydraulic actuator that changes a groove width...
US20090271081 CONTROL DEVICE FOR AUTOMATIC TRANSMISSION  
A control device for an automatic transmission is disclosed wherein a shift point depending on a variation in vehicle acceleration is modified on a real time basis in accordance with not only a...
US20110190994 RANGE DETERMINATION APPARATUS  
Herein disclosed is a range determination apparatus of a vehicle which can prevent a shift range from being undefined in the speed change states of an automatic transmission with no manual valve....
US20140236439 PROCEDURE FOR OPERATING A TRANSMISSION DEVICE, PARTICULARLY A 9-SPEED-TRANSMISSION  
A method of operating a transmission device. At least one of the shift elements is a form-locking shift element. A sensor is associated with the form-locking shift element which can determine an...
US20090112423 METHOD AND APPARATUS TO CONTROL OPERATION OF A HYDRAULIC PUMP FOR AN ELECTRO-MECHANICAL TRANSMISSION  
A method for controlling a hydraulic flow within a powertrain comprising an electromechanical transmission mechanically-operatively coupled to an engine adapted to selectively transmit power to an...
US20110040462 METHOD FOR CONTROLLING A TRANSMISSION OF A MOTOR VEHICLE  
A method for controlling a motor vehicle transmission (11) is disclosed in which a sensor (18) used to produce an indication of position of a selector (17) is calibrated such that positioning the...
US20090312927 CONTROL APPARATUS AND CONTROL METHOD FOR VEHICLE MOUNTED WITH AUTOMATIC TRANSMISSION  
An ECU executes a program including the steps of: determining whether or not the conditions for execution of low-temperature neutral control: the temperature of the automatic transmission...
US20090137362 CONTROL DEVICE AND CONTROL METHOD OF AUTOMATIC TRANSMISSION  
A control device of an automatic transmission includes a motor control portion to control an output of a motor that executes a control operation on a clutch control portion. The motor control...
US20110202244 METHOD FOR OPERATING THE TORQUE CONVERTER LOCK-UP CLUTCH IN A POWER TRANSMISSION OF A MOBILE MACHINE COMPRISING AT LEAST ONE HYDRAULICALLY ACTUATED LIFTING DEVICE  
A method of operating the torque converter lock-up clutch in a power transmission of a working machine comprising at least one hydraulically actuated lifting device. The torque converter lock-up...
US20100106383 METHOD FOR CONTROLLING AN AUTOMATIC TRANSMISSION OF A MOTOR VEHICLE IN THE BRAKING PHASE  
A method for controlling an automatic gearbox pertaining to a motor vehicle in a braking phase. According to the method, a gear ratio or speed value of the gearbox, requested on the basis of...
US20150051802 TRANSMISSION APPARATUS  
A transmission apparatus mounted on a vehicle has a front-wheel speed sensor for sensing a rotation speed of a front wheel. A control unit has a ratio-change correction part that determines a...
US20130317713 SPEED RATIO CONTROL DEVICE AND CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION  
A continuously variable transmission (4) comprises an endless torque transmission member (13) looped around a pair of pulleys (11, 12). At least one of the pulleys changes a winding radius of the...
US20140236440 Method of Setting Transmission Shift Points in Real-Time Based Upon An Engine Performance Curve  
The present invention provides a method for setting a shift point for shifting a transmission for a powered vehicle between a first gear ratio and a second gear ratio. The method includes...
US20140297143 METHOD FOR SELECTING A STARTING GEAR  
Method to control a drivetrain of a vehicle, wherein the vehicle is provided with a vibration sensor and a system for calculating the mass of the vehicle during driving, and where a starting gear...
US20140236438 PROCEDURE FOR OPERATING A TRANSMISSION DEVICE, PARTICULARLY A 9-SPEED-TRANSMISSION  
A method for operating a 9-speed transmission which changes operating states by actuating shift elements. At least one of the shift elements is a form-locking shift element, which disengages to...
US20100121545 METHOD FOR OPERATING A TRANSMISSION  
The invention relates to a method for operating a transmission, especially an automatic transmission, comprising a dry starting clutch. Said starting clutch is especially configured as a friction...
US20150247573 CONTINUOUSLY VARIABLE TRANSMISSION AND CONTROL METHOD THEREFOR  
A transmission controller determines whether or not an input rotation speed of a sub-transmission mechanism is stagnant and executes a feedback control by adding a rotation speed change rate...
US20110054751 CONTROL DEVICE AND CONTROL METHOD FOR AUTOMATIC TRANSMISSION  
A control device for an automatic transmission having a torque converter includes: a determining means for determining whether to set a friction element in an engaged condition or a disengaged...
US20120078480 METHOD OF COOLING A DUAL CLUTCH TRANSMISSION  
A method of cooling a dual clutch transmission is provided. The transmission has first and second input clutches alternately engagable to transfer torque to an output member along first and second...
US20130090818 Multiple-Ratio Automatic Transmission Control Method And System For Ratio Upshifts  
A speed ratio shaft control for multiple ratio vehicle transmission has controlled release of an off-going transmission clutch and controlled engagement of an on-coming transmission clutch during...
US20140358390 DIRECT CLUTCH SLIP CONTROL  
An automatic transmission for a vehicle drivetrain includes a transmission housing, an input shaft, an output shaft, and a plurality of gears within the transmission housing. The plurality of...
US20140088846 BICYCLE SHIFTING METHOD  
A bicycle shifting method suitable for controlling a gear ratio of a front chain ring and a rear chain ring of the bicycle is provided. The bicycle has a front electronic derailleur, a rear...
US20150094921 Method and Apparatus for Controlling an Automatic Transmission  
In a motor vehicle, the shifting characteristics for kick-down shifting for gear selection in the sense of a kick-down simulation are activated by at least one selection device by which the gears...
US20130041563 CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION  
In a control apparatus for an automatic transmission that changes speed of an engine output and transmits it to driven wheels, having an electromagnetic control valve installed in a hydraulic...
US20110190993 METHOD AND SYSTEM FOR CONTROLLING A VEHICLE POWERTRAIN  
A method and system for controlling a powertrain in a vehicle includes steps including registering a road condition. If the registered road condition corresponds to normal road conditions then a...

Matches 51 - 100 out of 156 < 1 2 3 4 >