AVOIDING WHEEL SPIN IN MOTOR VEHICLES

摘要

When a signal (22) representing the rotational speed of a driven wheel exceeds a threshold, the transmission arrangement alters the speed ratio of the CVT is altered to reduce wheel speed. The speed of the driven wheel axle (16) is preferably compared with the speed of a non-driven wheel axle (12), the speed ratio of the CVT being reduced if the speed of the driven wheels is greater than that of the non-driven wheels. The arrangement may alternatively sense wheel speed directly.