Patent ID: 6240355
Filing Date: 2001-05-29
Classification: B60K,B60W,F02D,Y02T

Abstract:
A method for controlling a drag torque of an internal combustion engine of a motor vehicle, comprising the steps of:generating, as a function of signals representing wheel speeds of wheels of the motor vehicle, a first setpoint and a second setpoint for reducing the drag torque in case of an instability in at least one driven wheel of the motor vehicle, the first setpoint being a setpoint for controlling an air supply to the internal combustion engine, the second setpoint being a setpoint for controlling at least one of an ignition angle and a fuel metering of the internal combustion engine;holding the first setpoint substantially constant and altering the second setpoint during a control of the drag torque when a tendency to instability is present; andcontrolling a drive unit of the motor vehicle to control the drag torque as a function of the first and second setpoints.