Hybrid drive system and method for controlling the hybrid...

Details Hybrid drive system and method for controlling the hybrid... Hybrid drive system and method for controlling the hybrid...

B - Operations, Transporting

60

L

B60L 11/18 (2006.01) B60L 11/00 (2006.01) H02M 5/458 (2006.01)

Patent

CA 2454730

The invention relates to a hybrid drive system for a vehicle; comprising an intermediate circuit (3) and an energy accumulator (5). According to the invention, the energy accumulator (5) is connected to the intermediate circuit (3) by means of a diode (6), whereby a transistor (7) enabling current to flow in an opposite direction is connected parallel thereto. The transistor (7) is placed in a blocking position in order to discharge the energy accumulator (5) and the diode (6) enables current to pass. If the energy accumulator (5) is not used, the diode (6) is also blocked by increasing the voltage (8) of the intermediate circuit (3) with the aid of the voltage (14) on the energy accumulator (5). In order to charge the energy accumulator (5), the transistor (7) is conductingly switched. The diode (6) does not allow the current to pass in this direction.

L'invention concerne un système moteur hybride pour véhicule qui comprend un circuit intermédiaire (3) et un accumulateur d'énergie (5). Selon l'invention, il est prévu que l'accumulateur d'énergie (5) soit relié au circuit intermédiaire (3) par une diode (6), parallèlement à laquelle est monté un transistor (7) laissant passer le courant en sens contraire. Pour permettre la décharge de l'accumulateur d'énergie (5), le transistor (7) est mis à l'état bloqué et la diode (6) laisse passer le courant. Lorsque l'accumulateur d'énergie (5) n'est pas utilisé, la diode (6) est également bloquée par le fait que la tension (8) du circuit intermédiaire (3) est élevée par l'intermédiaire de la tension (14) de l'accumulateur d'énergie (5). Pour permettre la décharge de l'accumulateur d'énergie (5), le transistor (7) est mis à l'état passant. La diode (6) ne laisse par passer le courant dans ce sens.

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