PROPULSION CONTROLLER FOR CAR WITH ANTI-BLOCK DEVICE

摘要

A design of a propulsion control i.e. anti wheel-spin and propulsion torque reduction system for vehicles equipped with a four-channel anti- wheel lock system is given, permitting a combined system on the vehicle, at an additional cost which is only small in comparison with that of an anti-lock system alone, this propulsion control system utilising an auxiliary pressure source 41 and including the safety system which is required for monitoring its operation. The basic design of a propulsion control system is integrated with the anti-lock system. Wheel speed-sensors (17, 18, 19 and 21), brake-pressure regulating valves (26 and 27) of the driven vehicle wheels (14 and 16), the pump (33) associated therewith which returns dumped brake fluid upstream of the values (26 and 27), provided as components of the anti-lock system, as well as that signal input stage (53) of this system which receives the signals from the wheel speed-sensors, are utilised at the same time, as appropriate, as components of the propulsion control system (10). The respective safety circuits (37 and 52) of the anti-lock system (11) and of the propulsion control system (10) are designed in a manner such that, in the event of an operating fault in the anti- lock system (11), the propulsion control system (10) is switched off, at the same time, while only this latter system is switched off in the event of its operation becoming faulty. A warning indicator (39) is provided.