| Patents for F16D 48 - External control of clutches (10,172) |
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| 09/27/1988 | US4773517 Torque control system for vehicles |
| 09/27/1988 | US4773500 Driving torque distribution control system for 4WD vehicle |
| 09/22/1988 | WO1988007145A1 Modulating valve device |
| 09/20/1988 | US4771658 System for controlling the pressure of oil in a system for a continuously variable transmission |
| 09/14/1988 | EP0281869A1 Pneumatic device for the automatic coupling operation of motor vehicles |
| 09/14/1988 | EP0281849A2 Continuously variable transmission clutch control system |
| 09/14/1988 | CN87106712A Ratio valve to control unloading of modulating relief valve |
| 08/30/1988 | US4766988 Circuit arrangement for controlling the engagement and disengagement of a clutch |
| 08/30/1988 | US4766985 Power clutch system |
| 08/23/1988 | US4766544 Apparatus for automatically controlling starting of vehicle powered by internal combustion engine |
| 08/23/1988 | US4765450 Clutch control apparatus responsive to motor and gearing controls |
| 08/23/1988 | US4765315 Particle brake clutch muscle exercise and rehabilitation apparatus |
| 08/17/1988 | CN87102596A Method for controlling amt system including wheel lock-up detection and tolerance |
| 08/09/1988 | US4762213 Driving system for a four-wheel drive vehicle |
| 08/03/1988 | EP0277049A1 Method of controlling a motor-actuated clutch |
| 08/02/1988 | US4760902 Tractor power take-off drive line |
| 07/28/1988 | DE3738799A1 Drive arrangement |
| 07/27/1988 | EP0276022A2 Control system for a clutch for a vehicle |
| 07/13/1988 | EP0274080A2 Forward and reverse clutch actuation system for a belt-driven continually variable transmission |
| 07/12/1988 | US4756335 Ball dump valve |
| 07/12/1988 | US4756213 Transmission control with a clutch priority valve |
| 07/12/1988 | US4756159 Prefilling apparatus for modular prefilled hydraulic control apparatus |
| 07/07/1988 | DE3724785A1 Method for adjusting clutches in machines |
| 07/05/1988 | US4754835 Control arrangement for four-wheel drive vehicles |
| 07/05/1988 | US4754666 Power transmission control system |
| 06/28/1988 | US4753332 Friction clutch assembly with selective lubrication during the friction phase |
| 06/28/1988 | US4753132 Hydraulic servo for friction coupling devices of automatic transmissions |
| 06/28/1988 | US4753131 Slip-controlled brake system for all-wheel driven road vehicles |
| 06/28/1988 | CA1238552A1 Electrohydraulic control of a spool valve for energizing a heavy duty automatic transmission clutch |
| 06/23/1988 | DE3642262A1 Disengageable coupling |
| 06/21/1988 | US4751866 Ratio valve to control unloading of modulating relief valve |
| 06/16/1988 | WO1988004242A1 Adaptor for operating the shaft connection of motor vehicles |
| 06/07/1988 | CA1237631A1 Pressure modulation valve |
| 06/01/1988 | EP0269611A2 Additional device for a road tractor |
| 06/01/1988 | EP0227660B1 Operation of a differential lock |
| 05/24/1988 | US4745999 Clutch operating cylinder for a pressure-medium operated clutch |
| 05/18/1988 | EP0267419A2 Locking device for a differential gearing |
| 05/04/1988 | EP0266197A2 Continuously variable transmission |
| 05/03/1988 | US4741407 Method and system for controlling limited-slip differential gear unit for automotive vehicle |
| 04/27/1988 | EP0265277A2 Differential control device |
| 04/27/1988 | EP0264380A1 Apparatus for preventing engine stall |
| 04/26/1988 | US4739864 Electromagnetic powder clutch for use in a power transmitting system having an automatically operated constant-mesh transmission |
| 04/21/1988 | WO1988002827A1 Pressure regulator |
| 04/21/1988 | DE3634743A1 Druckregeleinrichtung Pressure control device |
| 04/19/1988 | US4738112 Method and device for controlling brake booster supplementary vacuum pump ensuring good booster vacuum and low pump wear |
| 04/13/1988 | CN85108837B Apparatus for releasing clutch which connects the motor driving device with the compressor |
| 04/07/1988 | WO1988002449A1 Ratio valve to control unloading of modulating relief valve |
| 04/07/1988 | DE3731259A1 Einrichtung zur steuerung einer automatischen kraftfahrzeugkupplung Means for controlling an automatic motor vehicle clutch |
| 04/05/1988 | US4735114 Control system for vehicle with engine and continuously variable transmission |
| 03/24/1988 | WO1988001951A1 Device for controlling automatic motor vehicle clutches |
| 03/23/1988 | EP0260451A2 Slip-controlled brake installation for road vehicles with fourwheel drive |
| 03/22/1988 | US4732248 Method of and apparatus for controlling automatic clutch |
| 03/22/1988 | US4732246 Automatic transmission apparatus for vehicle |
| 03/22/1988 | US4731998 Hydraulic system in a working vehicle |
| 03/16/1988 | EP0260133A1 Control system of a selector mechanism for a continuously variable transmission |
| 03/16/1988 | EP0259634A2 Clutch actuating system |
| 03/15/1988 | US4730712 System for controlling a clutch for a motor vehicle |
| 03/15/1988 | US4730711 Electromagnetic clutch control system for automobiles |
| 03/08/1988 | US4729462 Automatic clutch control system having latch member |
| 03/08/1988 | US4729461 Control method for a direct-coupling mechanism in hydraulic power transmission means of an automatic transmission for automotive vehicles |
| 03/08/1988 | US4729408 Control system for independent control of fluid actuated devices |
| 03/01/1988 | US4727966 Differential with differential motion limiting mechanism |
| 03/01/1988 | US4727791 Apparatus for controlling a hydraulic single acting cylinder |
| 03/01/1988 | CA1233548A1 Method and apparatus for soft rejection of a clutched load |
| 02/23/1988 | USRE32610 Electric actuators |
| 02/23/1988 | CA1233045A1 System for controlling the transmission ratio of an infinitely variable transmission |
| 02/10/1988 | EP0255614A2 Clutch device for motorised vehicles, especially agricultural tractors |
| 02/09/1988 | US4723644 Electromagnetic clutch control system for automobiles |
| 02/09/1988 | US4723642 Speed change detecting device for controlling a clutch associated with a gearbox |
| 02/02/1988 | US4722429 Apparatus for controlling a friction clutch |
| 02/02/1988 | US4722426 To guard against overheating |
| 02/02/1988 | CA1232345A1 Apparatus and method for controlling electromagnetic clutches and the like |
| 01/28/1988 | DE3624008A1 Clutch inserted into the drive train of a vehicle |
| 01/27/1988 | EP0254483A2 Solenoid-operated fluid pressure regulator valves |
| 01/27/1988 | EP0253952A2 Hydraulic control system for a transmission |
| 01/20/1988 | CN87104170A Automatic clutch control system having latch member |
| 01/19/1988 | US4720792 Method and apparatus for controlling operation of a throttle |
| 01/14/1988 | DE3623627A1 Method for operating a friction clutch |
| 01/12/1988 | US4718525 System for controlling start clutch of automatic transmission |
| 01/12/1988 | US4718516 Four wheel drive unit |
| 01/12/1988 | CA1231310A1 Clutch lube control |
| 01/07/1988 | EP0251733A2 Control system for a clutch for a vehicle |
| 01/07/1988 | EP0251571A2 Control system for a clutch for a vehicle |
| 01/07/1988 | EP0251479A1 Control systeem for controlling transmission fluid pressure |
| 01/07/1988 | DE3721626A1 Motor vehicle with four-wheel drive |
| 01/05/1988 | US4717002 Universal power assist arrangement for use with a vehicle transmission clutch linkage |
| 12/29/1987 | US4715482 Method and apparatus for controlling an electromagnetic clutch for use on a vehicle |
| 12/23/1987 | EP0250228A2 Control system for a clutch for a vehicle |
| 12/22/1987 | US4714145 Speed responsive control for operating vehicle clutch |
| 12/16/1987 | EP0249460A2 Hydraulic clutch |
| 12/16/1987 | EP0249120A2 Automatic clutch control system having latch member |
| 12/15/1987 | US4712658 Method of automatically operating a clutch release bearing according to the speeds of the shafts coupled by an associated clutch |
| 12/09/1987 | EP0116570B1 Pressure modulating and reducing valve |
| 12/09/1987 | EP0114817B1 Solenoid operated clutch engagement |
| 12/08/1987 | US4711329 Hydraulic circuit construction for power shift transmission |
| 12/03/1987 | WO1987007347A1 Circuitry for triggering the inductance of a pressure regulator |
| 12/02/1987 | EP0247336A2 Electrohydraulic controlled spool valve |
| 12/02/1987 | EP0247049A1 Start-up and shifting clutch mechanism. |
| 11/26/1987 | DE3616974A1 Schaltungsanordnung zur ansteuerung der induktivitaet eines druckregelventils Circuit arrangement for controlling the inductance of a pressure regulating valve |
| 11/24/1987 | US4708229 Double acting clutch |