A method for determining a maximum permissible torque of a motor vehicle engine for the pilot control order to avoid unstable driving conditions in the case of cornering

摘要

The method for determining the maximum torque which can be safely delivered by the engine of a vehicle traversing a curve is based essentially upon wheels-peed and engine rpm measurements. The transverse acceleration (aq) is derived from the rpm (n3 n3) of the non-driven wheels and their track-width (b) whilst the effect of the transmission ratio (iq) is established via the engine rpm (nmot) and the rpms (n1 n2) of the driven wheel.A speed-dependent factor (K) specific to the vehicle and empirically established completes the necessary parameters from which a negative increment (R) is evaluated for torque limitation from maximum (Tm) to acceptable (T2) via throttle control (st).