Patent ID: 6349545
Filing Date: 2002-02-26
Classification: B60L,Y02T

Abstract:
Hybrid propulsion system for a self-propelled vehicle comprising:an internal combustion engine (1) rotatably connected to a reversible electrical machine (2), a rechargeable battery (3), an electric driving motor (7) capable of being selectively supplied with the current flowing in from the battery (3) and/or generated by said reversible electrical machine (2) when the latter is driven rotatably by said internal-combustion engine (1), control means (8), first switching means (4, 5) operated by said control means (8) to selectively connect the battery (3) to the electric driving motor (7) and/or the reversible electrical machine (2), characterized that, when the driving motor (7) is supplied with the current flowing in from the battery (3), said control means (8) continuously monitor the voltage at the poles (3P, 3N) of the battery (3), while, when the driving motor (7) is at least partially supplied with the current generated by said reversible electrical machine (2), the same control means (8) continuously monitor the voltage at the poles (2P, 2N) of said reversible electrical machine (2).