Patent ID: 7298104
Filing Date: 2007-11-20
Classification: B60K,B60L,Y02T

Abstract:
1. A system for the electrical regulation of a device for transmission of power between, on one side a thermal engine and a pair of electrical machines equipping an automobile vehicle, and on the other side, drive wheels of the automobile vehicle, the thermal engine being connected to the two electrical machines by means of a mechanical assembly, an electrical connecting device being located between the two electrical machines so as to provide a direct passage for power from any one of the two electrical machines to the other of the two electrical machines, without a significant intermediate energy storage or recovery element, the connecting device being controlled so that the power generated by any one of the two electrical machines is immediately consumed by the other of the two electrical machines, and so that the two electrical machines respond to requirements of a drive train, the connecting device comprising a bus connected to the two electrical machines by means of two inverters, each of said inverters being associated with one of the two electrical machines, so as to provide a transfer of electrical power between the two electrical machines the bus having two lines connected via a capacitor, wherein said system comprises an electrical regulation module regulating a voltage (V) across terminals of the capacitor so that said voltage is continuously maintained at or around a given voltage setpoint value (Vref), wherein said electrical regulation module acts on torques of both of the two electrical machines, either separately or simultaneously, and in any case continuously, in response to an error signal resulting from a comparison of a measured value of the voltage (V) with respect to the voltage setpoint value (Vref).