Method of preventing stalling of motor vehicle internal combustion engine involves controlling operation of starter-alternator to limit power generation below threshold speed value

摘要

The method of preventing stalling of a motor vehicle internal combustion engine involves operating the engine starter-generator and detecting the rotational speed of the engine. This speed is compared with a preset threshold value for acceptable engine speed corresponding to an incipient stalling condition. The starter alternator is disconnected from the generator operating mode when the detected speed is below the acceptable speed. Claims include a control circuit to carry out the method.