Vehicle steering system road surface reaction moment survey device for collection of road surface reaction moment and is obtained by wheel of vehicle from road surface and target flow calculating device for calculation of target flow value

摘要

Vehicle steering system has engine (7) for generation of auxiliary moment for retrofitting of steering moment by a driver of vehicle. A road surface reaction moment survey device (12) is provided for collection of road surface reaction moment and is obtained by wheel (9) of vehicle from road surface. A target flow calculating device (10) is provided for calculation of target flow value for powering of engine. The target flow calculating device encloses a compensation device for calculation of first compensation figure for compensating auxiliary moment based on steering shaft reaction moment and second compensation device for second compensation mechanism for calculation of a second compensation figure for compensating auxiliary moment based on the road surface reaction moment. The target flow calculating device calculates target flow in such a way that the compensation in reference with overall friction moment is generated in steering mechanism (1) of the vehicle and gradients of the road surface reaction moment based on first figure of compensation and second figure of compensation.