Capturing wear in controllers

摘要

A device 103, 104 captures wear in controllers 100 for controlling operating sequences in a vehicle. The magnitude of a variable which represents the wear of an electrical charge storage device 101 of the controller 100 is evaluated to capture the wear of the controller 100. The charge storage device is typically a capacitor or battery and the variable may be temperature, electrical charge or frequency. The duration of use of the controller is largely determined by the life time of the charge storage device.