| Patents for F16D 48 - External control of clutches (10,172) |
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| 11/09/1993 | US5259476 Torque distribution control system for a four-wheel drive motor vehicle |
| 10/27/1993 | EP0566595A1 Clutch control system. |
| 10/13/1993 | EP0430943B1 Power hydraulic system |
| 10/12/1993 | US5251443 Pressure-control device |
| 09/30/1993 | DE4210258A1 Transmission for vehicle with two engines - has separate clutches to couple to summation gearing and further clutch to couple to main gearbox |
| 09/29/1993 | EP0562126A1 Hydraulic circuit construction in system for adjusting right and left driving forces for vehicle |
| 09/22/1993 | EP0561506A1 Self-adjusting clutch actuator |
| 09/15/1993 | EP0414826B1 Load piston reset control mechanism |
| 09/15/1993 | EP0308509B1 Hydraulic clutch pressure control apparatus |
| 09/14/1993 | US5244056 Power transmitting system of four-wheel drive vehicle |
| 09/02/1993 | DE4206257A1 Actuator for clutch in motor vehicle drive train - has electromagnet subject to electronic control for re-engagement of clutch in accordance with speed of release of pedal |
| 08/19/1993 | DE4204591A1 Verfahren zur bestimmung einer zuschaltzeit bei einer schaltbaren kupplung Method for the determination of CONNECTING at a switchable coupling |
| 08/17/1993 | CA1321304C Hydraulic control method for continuously variable speed change gear mechanism for a vehicle and a drive control method for a pressure valve thereof |
| 08/10/1993 | US5234092 Control valve assembly with concentric spools |
| 08/10/1993 | US5234087 Pressure medium actuated method and friction clutch with exclusively axially movable friction discs |
| 08/04/1993 | EP0554138A1 Device for transmitting torque between a drive and a driven member |
| 08/04/1993 | EP0553670A1 Driving device for controlling and distributing driving power of a vehicle |
| 07/29/1993 | DE4202200A1 Friction clutch actuator for IC engine powered motor vehicle - removes integral component of positioning control signal when sum and integral component are of opposite sign |
| 07/28/1993 | CN1074659A Vehicle high-effciency and energy-saving multi-function system |
| 07/14/1993 | EP0550993A2 Incipient clutch control systems |
| 07/13/1993 | US5226517 Clutch assembly |
| 07/13/1993 | US5226502 Differential limiter for vehicle |
| 07/08/1993 | WO1993013328A1 Device for the prevention of the abuse of dry-plate clutches |
| 07/08/1993 | WO1993013319A1 Fluid control for two independent actuators |
| 07/07/1993 | EP0550222A2 Touch point identification for automatic clutch controller |
| 07/06/1993 | US5224906 Hydraulic actuator for clutch assemblies |
| 07/06/1993 | US5224578 Coolant flow control for a clutch |
| 06/30/1993 | EP0548718A2 Clutch device for vehicles |
| 06/30/1993 | EP0366665B1 Transmission |
| 06/24/1993 | DE4142324A1 Hydraulic clutch control for vehicle - has control disc with flow openings which is displaced with piston movement |
| 06/16/1993 | EP0546733A1 Drive power distribution control system for vehicle |
| 06/15/1993 | US5219038 Power transmission device for a four-wheel drive vehicle |
| 06/10/1993 | WO1993011369A1 Method and apparatus for determining the position of an armature in an electromagnetic actuator |
| 06/10/1993 | WO1993010994A1 A clutch control system |
| 06/09/1993 | CN1072890A Closed-loop start and climb control of automatic clutch |
| 06/08/1993 | US5217097 Control system for fluid pressure operated clutch |
| 06/08/1993 | US5216938 Control apparatus with fail-safe faculty |
| 06/03/1993 | DE4139726A1 Control system for oil cooled hydraulic multi plate clutch - uses rise in control pressure to open and close cooling oil supply, firstly opening cooling oil supply and when pressure reaches slipless force transfer value, it is again switched off |
| 05/25/1993 | US5213187 Device relating to a semi-automatic clutch for vehicles |
| 05/13/1993 | DE4136754A1 Hydraulic pressure stage circuit - makes available part pressure during first interval and then full working pressure via work pressure control valve |
| 05/11/1993 | US5209332 Control system for a clutch of a motor vehicle |
| 05/04/1993 | US5208755 System for controlling distribution of torque to left and right wheels of a motor vehicle |
| 05/04/1993 | CA1317242C Clutch or brake inching arrangement |
| 04/29/1993 | WO1993008411A1 Automatic clutch control method and associated automatic transmission device |
| 04/28/1993 | EP0538967A2 apparatus for drive and brake control of vehicles, equipped with a plurality of single wheel drive and brake modules |
| 04/28/1993 | EP0538504A1 Process for controlling the viscous coupling of a system for distributing driving torque in an all-wheel drive vehicle with a controllable viscous coupling system |
| 04/27/1993 | US5206805 Continuously variable transmission clutch control system including special start mode operation |
| 04/26/1993 | CA2081291A1 Driving and braking control of vehicles equipped with a plurality of single wheel drive and brake modules |
| 04/22/1993 | DE4134669A1 Friction clutch torque transfer point detection arrangement - corrects clutch engagement data held in memory using detected engine RPM |
| 04/22/1993 | DE4134660A1 Tractor 4-wheel drive switching control - responds to detected power direction for each drive axle to control switched couplings |
| 04/22/1993 | DE4134421A1 Controlled hydraulic differential for motor vehicle - has preassembled locking device provided as side extension of differential housing |
| 04/21/1993 | EP0537810A1 Accumulator and relay valve |
| 04/15/1993 | WO1993007017A1 Hydraulic circuit construction in system for adjusting right and left driving forces for vehicle |
| 04/14/1993 | EP0536933A2 Closed loop launch and creep control for automatic clutch |
| 04/14/1993 | EP0536932A2 Closed loop launch and creep control for automatic clutch |
| 04/14/1993 | EP0522022A4 Multi-mode clutch for change-speed transmissions |
| 04/13/1993 | CA1316117C Work vehicle |
| 03/18/1993 | DE4227535A1 Monitoring appts. for electromagnetic clutch or actuator, e.g. in printing machine |
| 03/16/1993 | US5194053 Rotational speed differential responsive type control coupling with variable transfer torque control means |
| 03/16/1993 | US5193885 Hydraulic pressure booster system |
| 03/16/1993 | US5193345 Distributor of a fluid under pressure |
| 03/04/1993 | WO1993003937A1 Method and device for monitoring a drive unit |
| 03/02/1993 | US5190130 Process for regulating a clutch |
| 02/25/1993 | DE4127635A1 Verfahren und vorrichtung zum ueberwachen eines antriebes Method and device for supervise a drive |
| 02/24/1993 | EP0527862A1 Force or pressure augmenting device. |
| 02/23/1993 | US5188204 Pre-filled power hydraulic system |
| 02/17/1993 | EP0527544A2 Cluth changeover circuit for non stage transmission |
| 02/11/1993 | DE4126376A1 Monitoring sensor for temp.-dependent wear and ageing - uses material, e.g. layers of zircon and nickel@, whose speed of ageing depends on temp. and is electrically measurable |
| 02/10/1993 | EP0526828A1 Device for synchronising speeds of driven axles |
| 02/02/1993 | US5183439 Control system for continuously variable transmission |
| 02/02/1993 | US5183131 System for controlling drive torque distributing clutch of vehicle |
| 01/28/1993 | DE4124722A1 Thermal overload protective device for friction clutch - includes slip and frictional power calculators and logic for temp. comparison with threshold and warning levels |
| 01/21/1993 | WO1993001065A1 Arrangement for controlling the differential lock in a motor vehicle |
| 01/20/1993 | EP0523698A1 Drive wheel torque controlling system of a vehicle |
| 01/20/1993 | EP0523106A1 Measurement of torque. |
| 01/14/1993 | DE4221045A1 Vehicular control system limiting effect of differential gearing - affords choice of modes in which differentials are either forcibly locked or unlocked to desired extent |
| 01/14/1993 | DE4120838A1 Automatic shift device for transmission of motor vehicle - has separate piston-type actuators operated hydraulically to engage and disengage clutch with axially movable plates |
| 01/13/1993 | EP0522022A1 Multi-mode clutch for change-speed transmissions |
| 01/12/1993 | US5179496 Excitation current device for automotive electromagnetic clutch |
| 01/07/1993 | WO1993000228A1 Process for automatically controlling a motor vehicle speed-varying starting device |
| 01/07/1993 | WO1993000227A1 A clutch control system |
| 01/07/1993 | EP0521275A1 Method and propulsion device for carrying out a control method for engaging and disengaging the four wheel drive of a vehicle, especially of a tractor |
| 01/07/1993 | DE4221116A1 Clutch control system for vehicle with automatic transmission - calculates turbine wheel torque setting within deg. of approximation dependent on engine and output shaft speeds |
| 01/05/1993 | US5176234 Method of regulating the operation of automatic clutches |
| 12/29/1992 | US5174422 Transmission equipped with torque converter |
| 12/24/1992 | DE4120602A1 Verfahren zur selbsttaetigen steuerung einer drehzahlwandelnden anfahreinrichtung eines kraftfahrzeuges A method for controlling a speed changing selbsttaetigen starting device of a motor vehicle |
| 12/23/1992 | EP0519358A1 Refrigerant control for a clutch |
| 12/17/1992 | DE4119464A1 Hydraulically actuated friction clutch - is supplied with oil through fixed housing supported on hydraulic bearings |
| 12/15/1992 | US5171170 Ship's drive with trolling device |
| 12/15/1992 | US5171073 Hydraulic pressure control system with three port spool valve |
| 12/15/1992 | US5170868 Automatic starting clutch control method |
| 12/08/1992 | US5168975 Motor vehicle drive arrangement |
| 12/08/1992 | US5168973 Apparatus for controlling hydraulic pressure for clutch |
| 12/08/1992 | US5168955 Traction control system for four-wheel drive vehicle |
| 12/08/1992 | US5168953 Differential limiting force control system and method for vehicle |
| 12/02/1992 | EP0516309A2 Clutches |
| 12/02/1992 | EP0515381A1 A clutch control system. |
| 11/26/1992 | DE4117116A1 Torque control for fluidic plate clutch - has permanent magnet ring and induction coil to measure clutch slip |
| 11/17/1992 | US5163542 Clutch actuating hydraulic circuit |
| 11/12/1992 | DE4213589A1 Operating vehicle with IC engine having flywheel mass - disengaging clutch in drive transmission before engine is brought to standstill |