Patents for F16H 61 - Control functions within change-speed- or reversing-gearings for conveying rotary motion (47,420)
03/1990
03/06/1990US4905786 Vehicle speed control system for motor vehicle having an automatic transmission control system
03/06/1990US4905545 Method of controlling the speed change of a kickdown shift for an electronic automatic transmission system
03/06/1990US4905544 Powertrain control apparatus for improving fuel economy
03/06/1990US4905530 Shifting arrangement for an automatic transmissdion of a motor vehicle
03/06/1990CA1266417A1 Hydraulic transmission device and method of using it
03/05/1990WO1990004732A1 Electronic-hydraulic control device for transmission systems of vehicles with automatic gear change
03/01/1990DE3906272A1 Hydraulic control device for an automatic transmission
03/01/1990DE3906255A1 Oil duct arrangement in an automatic transmission
02/1990
02/28/1990EP0356102A1 Hydraulic control circuits for continuously-variable-ratio transmissions
02/28/1990EP0356036A2 Hydraulic control device for automatic transmission for vehicle having clutch operable in two speed stages and two parallel hydraulic pressure supply passages therefor
02/28/1990EP0355576A1 Improved jolt control system for drive system
02/28/1990EP0355574A1 Line pressure control during downshift
02/28/1990EP0355382A1 Adjusting device for a parametrically dependent hydraulic pressure valve arrangement for an automatic transmission of the belt and pulley type
02/28/1990EP0355268A2 Transmission and method of operation
02/28/1990EP0232279B1 Gearshifting device
02/27/1990US4904229 Belt-and-pulley type continuously variable transmission and method for controlling the same
02/27/1990US4903811 Transfer device for a four-wheel drive motor vehicle
02/27/1990US4903551 Failsafe hydraulic control system for vehicle automatic transmission
02/27/1990US4903550 Hydraulic control device for automatic transmission
02/27/1990US4903549 Shift control system for automatic transmission
02/27/1990CA1266191A1 Method and system for shift control of an automatic transmission for vehicle
02/22/1990WO1990001431A1 Process and device for controlling a clutch
02/22/1990WO1990001429A1 Hydrostatic transmission system for vehicles
02/22/1990DE3926718A1 Adjustable drive unit operating system for vehicle - uses drive switch to preselect continuous speed and control device only allows continuous running at given transfer ratios
02/21/1990EP0355070A1 Torque modulation control process for a heat engine associated with an automatic transmission
02/21/1990EP0354901A1 Control device for an automatic gearbox.
02/20/1990US4902265 Variable speed pulley
02/20/1990US4901605 Arrangement for discharging band servo operating hydraulic pressure in automatic transmission
02/20/1990US4901603 Control apparatus for hydraulically operated vehicular transmissions
02/20/1990US4901529 Hydraulically operated continuously variable transmission
02/15/1990DE3926134A1 Hydrostatic hub drive for vehicle - incorporates brake valve doubling as pressure limiting valve
02/14/1990EP0354890A1 A gearbox for automotive vehicles
02/14/1990EP0354544A2 Compensation for a drop in idling speed upon selecting drive range from neutral range
02/14/1990EP0354541A2 Jolt control for drive system
02/14/1990EP0354493A2 Apparatus for controlling gearshifts in automatic transmission
02/13/1990US4900295 Belt transmission device for motorcar engines and auxiliary devices
02/13/1990US4899858 Method and control system for updating of control parameter value indicative of master clutch point of incipient engagement
02/13/1990US4899857 Automatic transmission apparatus for vehicle
02/13/1990US4899785 Proportional pressure reducing valve
02/13/1990US4899624 Control of an automatic vehicle power transmission
02/13/1990US4899619 Manual override for an electronically controlled automatic transmission
02/13/1990US4899607 Electrically controlled pressurized fluid actuated X-Y shifting mechanism
02/13/1990US4899542 Control device for a continuously variable transmission for motor vehicles
02/13/1990CA1265684A1 Torque-responsive power transmission assembly
02/08/1990DE3826619A1 Device for controlling the speed of a hydraulic motor
02/07/1990EP0354013A2 Ram units in transmissions of the toroidal race, rolling traction type
02/07/1990EP0354008A2 Accumulator control device for hydraulic control device for automatic transmission for vehicle with engine load dependent backup control
02/07/1990EP0354007A2 Hydraulic control device for automatic transmission for vehicle having friction engaging means operative in two jumping apart speed stages
02/07/1990EP0354006A2 Hydraulic control device for automatic transmission for vehicle having two parallel input clutches
02/07/1990EP0354005A2 Hydraulic control device for automatic transmission for vehicle with high accuracy reverse inhibition system
02/07/1990EP0354004A2 Hydraulic control device for automatic transmission for vehicle adapted to engage clutch at different speed according to engine output power
02/07/1990EP0354003A2 Hydraulic control device for automatic transmission for vehicle having clutch disengage control means independent of clutch engage control means
02/07/1990EP0353771A2 Apparatus for controlling gearshifts in automatic transmission
02/07/1990EP0353310A1 Automatic transmission for vehicles
02/07/1990EP0353288A1 Process and apparatus for filling a constant speed drive
02/07/1990EP0304422B1 Electric-hydraulic control
02/06/1990US4899279 Method for controlling AMT system including wheel lock-up detection and tolerance
02/06/1990US4899278 Automatic transmission with erroneous shift preventing function
02/06/1990US4898361 Submodulation of a pulse-width-modulated solenoid control valve
02/06/1990US4898050 System for controlling the pressure of oil for a continuously variable transmission
02/06/1990US4898049 Electro-hydraulic control for reducing engagement shock in an automatic transmission
02/06/1990US4897996 Low-loss cyclically-operating pressure-responsive bypass valve for fixed displacement pump flow control
02/06/1990US4897942 High efficiency snowthrower
02/06/1990CA1265418A1 Vibration damping structure of shift lever retainer
02/01/1990DE3925138A1 Regelsystem fuer ein automatisches kfz-getriebe Control system for an automatic transmission fcc
02/01/1990DE3924632A1 Controlling clutch between engine and gearbox of vehicle - using clutch as bridging coupling of hydrodynamic unit or separation coupling and units detecting engine and drive RPM
02/01/1990DE3825726A1 Hydraulische schaltanordnung fuer ein fahrzeug mit einem hydrostatischen getriebe Hydraulic switching arrangement for a vehicle with a hydrostatic transmission
01/1990
01/31/1990EP0352803A2 Gear shift control for power train
01/31/1990EP0352782A2 Adaptive control method for a working parameter of a drive component of a motor vehicle
01/31/1990EP0352551A2 Upshift logic
01/31/1990EP0352296A1 Ignition interrupt system with stall interval.
01/31/1990EP0352277A1 Device for controlling an automatic motor vehicle clutch.
01/31/1990EP0268582B1 Transmission
01/30/1990US4897790 Control arrangement for the shifting of variable change speed gears
01/30/1990US4896569 Electronically controlled automatic transmission and method of controlling the same
01/30/1990US4896568 Electric-hydraulic control
01/30/1990US4896565 Process for the gear change of the automatic transmission of motor vehicles controlled with an electrohydraulic valve system
01/30/1990US4896556 Shift lever knob
01/30/1990US4896553 Automatic transmission
01/25/1990DE3841304A1 Automatic gear-change device in a gearbox
01/24/1990EP0352110A2 Method of controlling continuously variable transmission in combination with engine throttle control
01/24/1990EP0352051A2 Engine torque control system
01/24/1990EP0351824A2 Line pressure control for automatic transmission
01/24/1990CN1006565B Semi-automatic transmission
01/23/1990US4895552 Control system for transmission
01/23/1990US4895192 Process and apparatus for filling a constant speed drive
01/23/1990US4895054 Motor vehicle switching and control device
01/17/1990EP0351095A2 Accumulator control for hydraulic actuating pressure of automatic transmission friction clutch or brake
01/17/1990EP0350812A2 Device for automatically shifting a mechanical multi-stage motor vehicle gear selector
01/17/1990EP0350497A1 Gear-changing console.
01/17/1990CN1006454B Method and apparatus of the speed control of automatical gearshift for vehicle
01/16/1990US4894780 Process for switching the gear-change of automatic transmissions of motor vehicles in dependence of the temperature of the cooling water
01/16/1990US4894048 For high load transmitting
01/16/1990US4894018 Low profile electrical connector
01/16/1990US4893701 Controlling device for automatic speed change mechanism
01/16/1990US4893652 Valve assembly for controlling fluid flow
01/16/1990US4893527 Speed change control apparatus for automatic transmissions
01/16/1990US4893526 Continuous variable transmission control system
01/11/1990WO1990000232A1 Hydraulic transmission stage controller of automatic transmission
01/11/1990WO1990000121A1 Control system for vehicle with automatic transmission