On-board monitoring of motor vehicle systems involves assessing change in drive unit torque loss following switching system onto draw conclusion about functionality of system

摘要

The vehicle drive unit exerts torque on the system when it is switched on. The method involves determining the torque loss of the drive unit before and after turning the system on in order to determine a change in torque loss and assessing the change in torque loss to draw a conclusion about the functionality of the system. An independent claim is also included for an arrangement for on-board monitoring of motor vehicle systems.