A method and device for message of a defect on the art to an electronic engine-power control system

摘要

A method of reporting a fault condition in a motor vehicle provides variation of the relationship between preset power target value (10) and reaction of the vehicle engine. Monitoring equipment can monitor component assemblies, such as an exhaust gas system, for faults and can also receive external input of fault signals. If a fault is recognised the above-mentioned relationship is varied in a noticeable manner, for example by engine power limitation. As shown, under normal operation the relationship between throttle angle alpha and engine power P is as indicated at 21. If a diagnostic circuit 11 detects a fault, function 21 is replaced by function 20. IMAGE