Drive torque determined from the throttle position and engine speed is used to compute the maximum possible instantaneous vehicle acceleration, which in turn is used to limit the increase of the reference value, such as a vehicle reference speed. The reference value is used to generate slippage values, which in turn are used to control braking and engine torque in a four wheel drive vehicle.

A drive slip control system for a motor vehicle which brakes a driven wheel when that wheel begins to slip and which reduces engine torque when both driven wheels begin to slip on the pavement. The action of the drive slip control system is inhibited when the engine speed falls below a preset speed, such as the engine idle speed.

An anti-lock brake control system for trailers is described where the power supply of the parts of the electronic system, which require only a small amount of electric power, is derived from the signals of the one (or several) speed sensor(s) and the power for the amplifier is supplied via the brake light line.

A contact element for transmitting current to a workpiece for use in electrochemical material working. The contact element (10) encompasses a contact carrier (11) and a contact piece (13) which is secured to the contact carrier (11) and comes in contact with the workpiece during operation. The contact carrier (11) comprises zirconium or a zirconium alloy. The contact piece (13) is a solid disk of platinum or a platinum alloy, and is welded to the end face (14) of the contact carrier (11).

Valves for maintaining pressure at the vehicle brakes are activated when the vehicle reference speed falls below a predetermined value, whether the pressure is supplied by the brake pedal or an ASR. The energy supply for the valves is prevented from being switched off while the pressure is maintained.

The locking lever of a detachable electrical plug connection can be produced cost-effectively and makes it possible to lock the plug connection securely. The locking lever is manufactured completely from a sheet-metal part, first guide elements, by means of which the locking lever is mounted on a plug housing such that it can rotate, being produced on the one hand, and second guide elements, by means of which the locking lever engages in guide tracks of a plug receptacle, being produced, for exa…

A solenoid valve control circuit for controlling an actuation current of a solenoid valve when the valve is to be adjusted from its flow-permitting position into its closed position so that the actuation current is initially adjusted to a value beyond the current value at which the valve begins to drop out. However, the actuation current is subsequently adjusted back to the range which lies between the current value at which the valve goes into the closed position and the current value at which …

In a vehicular control system in which target braking torques are set for each of the driven wheels, the smaller target braking torque for the driven wheels is determined. Based on this smaller target braking torque, a target engine torque is calculated, and the engine torque is varied to conform to the target engine torque. Residual braking torques are calculated as differences from the target braking torques for each driven wheel and the target engine torque. These residual braking torques are…

A telecommunications unit has an oscillating crystal as frequency standard, in which the temperature response of the oscillating crystal is counteracted by a compensation mode inserted into the unit’s microprocessor prior to execution of the operating program.

In a multipole plastic connector housing, the capacitors used for interference-suppression are arranged so positionally secured that they do not change their position when the connector housing is injection molded. The capacitors are electroconductively connected to contact insertion parts, and the capacitors and the contact insertion parts are inserted as preassembled parts into a clip part, which is inserted into an injection mold and is subsequently embedded at the same time when the connecto…