PROCEDURE AND STARTING DEVICE OF A THERMAL ENGINE IN A SERIAL HYBRID VEHICLE.

摘要

Starting procedure of a thermal engine (11) of a hybrid vehicle (10), said thermal engine being able to provide a motor torque to a motor shaft (14) attached to the wheels (20) of the vehicle, an electric machine being ( 13) coupled to the motor shaft and providing a support torque to the motor shaft of the same or opposite direction to the motor torque, said process comprising the following steps: - comparing a temperature representative of the temperature of the thermal motor with a first threshold; and - activating the thermal motor by means of the electric machine, if the representative temperature is higher than the first threshold, or by a starter (27) other than the electric machine, if the representative temperature is lower than the first threshold; - compare the representative temperature with a second threshold, lower than the first threshold; and - feeding the starter (27) by a first battery (26), if the representative temperature is below the second threshold, or by associating the first battery and a second battery (22), normally dedicated to the power supply of the electric machine (13), if the representative temperature is between the second threshold and the first threshold.