PROPULSION UNIT FOR MOTOR VEHICLE USING A THERMAL ENGINE DOWN TO LOW WORKING SPEEDS WITH THE ASSISTANCE OF AN ELECTRIC MACHINE

摘要

PCT No. PCT/FR80/00137 Sec. 371 Date May 14, 1981 Sec. 102(e) Date May 14, 1981 PCT Filed Sep. 16, 1980 PCT Pub. No. WO81/00833 PCT Pub. Date Apr. 2, 1981.Power unit for automobile vehicle utilizing an internal combustion engine down to the lowest rotation speeds. Power unit for automobile vehicle comprising an internal combustion engine with its conventional inertia flywheel, a reversible electric machine, a storage battery, a speed variator coupling the electric machine to the internal combustion engine and an electric control circuit, the assembly being arranged to enable the internal combustion engine to operate at rotational speeds considerably lower than those normally afforded by its inertia flywheel by regularizing its output torque through instantaneous, alternately positive and negative exchanges of mechanical energy between the internal combustion engine and the electric machine and of electrical energy between the electric machine and the storage battery.