Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16H - Gearing › F16H 61 - Control functions within change-speed- or reversing-gearings for conveying rotary motion
Patents for F16H 61 - Control functions within change-speed- or reversing-gearings for conveying rotary motion (47,420)
11/1990
11/22/1990EP0397865A1 Vehicle engine control unit
11/22/1990DE4015290A1 Electropneumatic gear change system with special emergency valve - includes standby compressed air supply with multi-position valve and electrical switch closed in its inoperative position
11/22/1990DE4015285A1 Electropneumatic gear change system with magnetic valve unit - utilises spare wheel as reserve store of compressed air for emergency use when main supply fails
11/20/1990US4971185 Oil channel structure for automatic transmission
11/20/1990US4970942 Device designed for the control of a gearbox synchronized by an electronic calculator
11/20/1990US4970916 Shift control system for automatic transmission
11/20/1990US4970862 Hydraulic continuously variable speed transmission
11/20/1990CA1276706C Method for controlling amt system including wheel lock-up detection and tolerance
11/15/1990WO1990013762A1 Variable capacity pump controller of hydraulically driven wheel
11/14/1990EP0397203A2 Fail-safe system for multiple control system having at least one common sensor for monitoring common control parameter
11/14/1990EP0396781A1 Apparatus for controlling variable-capacity hydraulic motor of a hydraulically driven vehicle
11/14/1990EP0299019B1 Servo-control for the sliding selector shaft of multi-step reduction gears of motor vehicles
11/13/1990US4969857 Variable speed accessory drive
11/13/1990US4969546 Fluid operated clutch with a directional torque control
11/13/1990US4969377 Transmission throttle-valve linkage for vehicle traction control
11/12/1990CA2016622A1 System and method for facilitating correct gear meshing and clutch engagement in vehicles
11/08/1990DE3914792A1 Vehicle drive with engine and cone pulley stepless drive - has power-dependent clutch regulated by adjusting element with hydraulic system and control value to produce required transmission ratio
11/07/1990EP0396034A2 Transmission mounted solenoid interlock device
11/07/1990EP0354901B1 Control device for an automatic gearbox
11/07/1990EP0350497B1 Gear-changing console
11/06/1990US4969099 Double-detecting, trouble-judging and failsafe devices in system for integrally controlling automatic transmission and engine
11/06/1990US4969098 Method of torque phase shift control for an electronic automatic transmission system
11/06/1990US4968999 Method of shift torque management for an electronic automatic transmission system
11/06/1990US4967883 Automatic transmission shift lever device with park and ignition interlock
11/06/1990US4967621 Hydraulic control device for belt-and-pulley type continuously variable transmission for a vehicle
11/06/1990US4967620 Line pressure control system for automotive automatic transmission having self-adjusting level control
11/06/1990US4967611 Shift scheduling in automatic transmission with throttle modifier and partial throttle pressures
11/06/1990US4967610 Method of controlling speed reduction ratio for continuously variable speed transmission
11/06/1990US4967555 Hydraulic continuously variable speed transmission with relief valve to prevent engine stall
11/06/1990CA1275894C Shift lever tower assembly
11/06/1990CA1275828C Step-out clutch-to-clutch upshift control
10/1990
10/31/1990EP0395229A2 Submodulation of a pulse-width modulated solenoid operated control valve
10/31/1990EP0394556A2 Gear change device for stepped gearing of vehicles
10/31/1990EP0394498A1 Speed change control method for hydraulically operated multistep transmissions
10/31/1990EP0352277B1 Device for controlling an automatic motor vehicle clutch
10/31/1990EP0286650B1 Transmission ratio selector mechanism
10/30/1990US4967385 Electronic control system for powershift transmission
10/30/1990US4967357 Constant speed holding apparatus
10/30/1990US4967356 Control system for automatic transmission producing shock-free shift
10/30/1990US4967355 Method for controlling switching over of speed stages of transmission with presetting of due period
10/30/1990US4966263 System for controlling lock-up clutch
10/30/1990US4966262 Transmission safety locking lever apparatus
10/30/1990US4966195 Transmission pressure regulator
10/30/1990US4966050 Control valve for reducing harshness of engagement of an automatic transmission clutch
10/30/1990US4966049 Shift control system for automatic transmission
10/30/1990CA1275720C Method for controlling amt system including start from stop clutch and fuel control
10/25/1990DE3912779A1 Pressure restricting valve for hydrostatic gearbox in closed circuit - incorporates hollow adjustment screw whose protruding end has closure screw
10/25/1990DE3912359A1 Gear-change aid for motor vehicle driver - uses electronic processing to computer gear-change positions with indication on dashboard instruments
10/24/1990EP0393910A2 Transmission for vehicle
10/24/1990EP0393884A2 System for detecting malfunction of turbine speed measuring device for torque converter of automotive automtic transmission
10/24/1990EP0393669A1 Method and system for controlling power train of vehicle
10/24/1990EP0393618A2 Method of controlling a traction-roller-type continuously variable transmission
10/24/1990EP0393248A2 Transmission pressure regulator
10/24/1990EP0393040A1 Control device for automatically shifting gradual gear change boxes.
10/23/1990US4965735 Method of determining the shift lever position of an electronic automatic transmission system
10/23/1990US4965730 Vehicle-running control system
10/23/1990US4965728 Method of adaptively idling an electronic automatic transmission system
10/23/1990US4964841 Continuously variable transmission
10/23/1990US4964504 Multiple clutch assembly
10/23/1990US4964318 Engine control apparatus for improved fuel economy
10/23/1990US4964317 Hydraulic control method for continuously variable speed change gear mechanism for a vehicle and a drive control method for a pressure valve thereof
10/23/1990CA1275470C Automatic engine/transmission control system
10/23/1990CA1275469C Transmission shift control system
10/18/1990WO1990012228A1 Engine-rpm-dependent arrest device to prevent non-permitted down shifts in motor vehicle gearboxes
10/18/1990WO1990012227A1 Drive device with gearbox
10/18/1990WO1990012225A1 Two-path hydromechanical transmission and control method therefor
10/18/1990WO1990012217A1 Clutch actuating hydraulic circuit
10/18/1990DE4010904A1 Vehicle automatic transmission control method - performing torque control to reduce torque shocks during gearchange
10/17/1990EP0392762A2 Method for correcting data used for a clutch control operation
10/16/1990US4962830 Dual transmission-fluid-level maintenance system
10/16/1990US4962680 Electronic control device for a drive system
10/16/1990US4962679 Method of controlling speed reduction ratio for a continuously variable speed transmission
10/16/1990US4962678 Hydraulic control method for continuously variable speed change gear mechanism for a vehicle and a drive control method for a pressure valve thereof
10/16/1990US4962675 Shifting device for lawn mower and the like
10/11/1990DE4011033A1 Vehicle reverse gear protection system - incorporates hydraulic switching valve and control valve working with low-pressure pump
10/11/1990DE4010552A1 Electronically controlled hydrostatic transmission for vehicle - has fail-safe switching to one gear ratio if servo pressure fails
10/11/1990DE3939748A1 Securing gear lever and PARK position - involves locking mechanism with key in gear lever
10/10/1990EP0391604A2 Transmission
10/10/1990EP0391387A2 Driving condition recognition system for automotive vehicle and shift control system for automotive automatic power transmission utilizing the results of vehicular driving state recognition
10/10/1990EP0391090A1 Drive connection for a vehicle with mounted implements
10/10/1990EP0144608B2 Process and device for controlling a clutch-and-transmission unit
10/09/1990US4961484 Brake device for vehicle
10/09/1990US4961315 Method of controlling speed reduction ratio of continuously variable speed transmission
10/04/1990WO1990011460A1 Load piston reset control mechanism
10/04/1990DE4010104A1 Automatic gearbox control system for motor vehicle - selects optimal ratio corresp. to driving conditions evaluated electronically from two or more parameters of engine operation
10/04/1990DE3909565A1 Shift lever
10/04/1990CA2013705A1 Drive connection on a support vehicle
10/03/1990EP0390590A1 Shift lever arrangement for operating automatic power transmission
10/03/1990EP0390423A1 Method for controlling an internal combustion engine for vehicle with automatic transmission system
10/03/1990EP0390396A2 Method for controlling vehicle automatic transmission systems
10/03/1990EP0390357A1 Method for upshifting a compound semi-blocked splitter type automatic mechanical transmission
10/03/1990EP0390210A1 Safety shift-lock device for selector of automatic power transmission
10/03/1990EP0390088A2 Slip control system for a vehicle
10/03/1990EP0389794A1 Lock-up clutch for four element torque converter
10/03/1990EP0389703A1 Engagement mechanism
10/03/1990EP0248815B1 Two speed automatic shift drill
10/03/1990EP0231393B1 Operation controller for quickly controlling change of forward or backward direction of vehicle equipped with automatic transmission
10/02/1990US4960182 Constant speed holding apparatus
10/02/1990US4960008 Automotive transmission linkage system
10/02/1990US4960004 Continuously variable traction roller transmission
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