Engine torque regulation

Engine torque regulation takes place after bus communication with the engine control module during which the ESP control module requests a specific engine torque from the engine management system. Engine torque is then regulated with ignition retardation and throttle control, i.e. changing the throttle angle and boost pressure (air mass/combustion). By using engine torque regulation, the brakes need not be applied as often, resulting in a higher degree of comfort.

This action means that kinetic energy in the drive wheels is converted to heat in both cases. Applying the brakes heats the wheel brakes and ignition retardation raises the exhaust temperature. In order to protect the turbocharger and catalytic converter, ignition retardation does not occur at high exhaust temperatures.