Abstract: A method for actuating a clutch in the drive train of a motor vehicle, including: generating a respective position setpoint for each predetermined target interval to actuate the clutch; in each predetermined target interval, actuating the clutch in a plurality of predetermined controller sampling intervals; discretizing a respective position setpoint change into a plurality of intermediate position setpoints; determining a number of intermediate position setpoints in the plurality of intermediate position setpoint depending on the ratio of the target interval to the controller sampling interval; and specifying the respective position setpoint changes in steps to actuate the clutch.

Abstract: An individual automatic transmission for each road wheel, independently connected to the drive shaft, so that each wheel acts without regard to the requirements of the other road wheels. With exception of some type of manual reversing system, a brake, and a gas pedal, no manually operated clutches, shift levers, or differential gearing is required. A vehicle having four road wheels has a correct torque exerted on each of the wheels as long as the drive engine is running, the intensity of which is determined by road conditions on that wheel and on the desires of the operator who controls the engine speed. Connection of each driven wheel shaft to the engine shaft can be made by bevel gears of the desired ratio and/or universal couplings.

Abstract: A hydraulic torsional vibration damper comprising a primary part having an internal gear and a driving gear rim, a secondary part, and a planetary support having a hub and supported by said secondary part. A plurality of planetary gears are arranged in said planetary support and engage the internal gear of the primary part to form gear pumps for pumping a hydraulic medium. A plurality of suction chambers are arranged in the planetary support, each suction chambers having an inner and an outer wall. A ring-shaped pressure chamber is arranged between the hub of the planetary support and the planetary gears and is connected to the planetary gears. The pressure chamber is also controllably connected to the suction chambers.

Abstract: A device for damping torsional vibration of a drive shaft with a liquid damping medium including a primary gear connected to the drive shaft. A secondary gear supports a series of planetary gears in meshed connection with the primary gear. The revolving primary gear and the planetary gears form a gear pump for closed circulation of the liquid damping medium through pressure ducts. The device further includes a control device for controlling the flow rate of the liquid damping medium based on the rotational speed of the primary gear.

Abstract: Disclosed is a hydraulic clutch mounted between a power source and an output shaft.

Abstract: In an automatic two-speed shift transmission for the drive of auxiliary units, such as the dynamo, of a motor vehicle internal-combustion engine, the speed change is effected by the centrifugal-force-dependent actuated throttling of a hydrostatic control element.