Hybrid drive motor vehicle drive system and its control process

Details Hybrid drive motor vehicle drive system and its control process Hybrid drive motor vehicle drive system and its control process

B - Operations, Transporting

60

L

B60L 11/02 (2006.01) B60L 11/12 (2006.01) B60L 11/18 (2006.01) B60K 6/04 (2006.01)

Patent

CA 2194320

he invention is a drive system for a hybrid drive motor vehicle, said system including a direct current power generating unit (1) for an electric motor assembly used to drive at least one wheel (4) of the vehicle. Through an accelerator (6), the driver of the vehicle transmits a power set point signal (Sc) which is used by adjustment devices that are particularly simple and stable, operating with a reduced number of sensors. Said set point signal (Sc) is used by a first adjustment device (8) which operates on the internal combustion engine, the electrical generator and the AC/DC converter of the power generating unit (1). A second adjustment device (9) adjusts the power of the drive assembly (3), which is a slave to the power generating unit, responding to the variations of voltage VO in the power circuit (2) by reference to a set point voltage, ignoring the signal coming from the accelerator.

L'invention concerne un système d'entraînement pour véhicule automobile à propulsion hybride, comportant un ensemble générateur (1) produisant un courant continu utilisé par un ensemble propulseur à moteur électrique pour entraîner au moins une roue motrice (4) du véhicule. Au moyen d'un accélérateur (6), le conducteur donne un signal de consigne de puissance (Sc) qui est utilisé par des moyens de réglage particulièrement simples et stables, opérant avec un nombre réduit de capteurs. Ledit signal de consigne (Sc) est utilisé par un premier dispositif de réglage (8) qui agit sur le moteur thermique, la génératrice et le convertisseur AC/DC de l'ensemble générateur (1). Un second dispositif de réglage (9) règle la puissance de l'ensemble propulseur (3) en esclave de l'ensemble générateur, d'après les variations de la tension U0 du circuit d'alimentation (2) par rapport à une tension de consigne, sans considérer le signal provenant de l'accélérateur.

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