Device for controlling the starter of a motor vehicle internal combustion engine, and corresponding starter

The device (1) has a periodic measurement unit (12) for measuring operating variables of an electric motor (3), of a thermal motor and/or of the device. A storing unit (6) stores intensity (I) under conditions of difficult starting based on a law of optimal evolution. A determination unit determines a set point of the intensity depending on the operating variables and the law of optimal evolution. A control unit (11) includes a chopper series (11) controlled by the determination unit. The periodic measurement unit includes two sensors (7, 8).