Patent ID: 8275534
Filing Date: 2012-09-25
Classification: F02N,Y02T

Abstract:
1. A method of operating an internal combustion engine of a motor vehicle, the method which comprises: automatically starting the internal combustion engine in dependence on at least one activation condition and/or automatically deactivating the internal combustion engine in dependence on at least one deactivation condition; measuring the at least one activation condition and/or the at least one deactivation condition while the motor vehicle is at a standstill; and storing a presence of the activation conditions and/or deactivation conditions in a memory and evaluating the presence of the activation conditions and/or deactivation conditions in order to diagnose a control of the internal combustion engine; starting a first time counter when the vehicle comes to a standstill, and stopping the first time counter when the vehicle starts moving; and prohibiting a deactivation of the internal combustion engine if a value of the first time counter is higher than a predefined threshold value.