Control of roadholding of motor vehicle without wheelslip - involves addn. of lower driven=wheel speed to difference corrected for inequality of non=driven wheel speeds

摘要

Engine output is controlled by the throttle flap adjustment (13) using control logic (12) operating on signals from two circuits which process the outputs from tachometers on the driven wheels (1,2) and non-driven wheels (3,4). A target control speed is computed (10) from the outputs of corresp. functional circuits (5-8) and corrected in accordance with the difference between nearside and offside non-driven wheels speeds on curves. The corrected target is compared with a road speed estimate (11). ADVANTAGE - Sufficient additional force for negotiation of a curve is developed even where there is a tendency to loss of adhesion.