Patent ID: 8400111

Claim:
A method for driving a micro-hybrid system with braking recovery for a vehicle, said micro-hybrid system ( 1 ) including an electric energy storage unit ( 12 ) and an electronic control unit ( 14 ), said electric energy storage unit ( 12 ) including a plurality of elementary cells (C 1 to C 10 ) mounted in series, the method comprising the steps of: reading elementary electric voltages (V) of said elementary cells (C 1 to C 10 ); and deriving a state information on a state of the electric energy storage unit ( 12 ) from said read elementary voltages (V); said state information including state of health data comprising the difference in voltage DeltaV=Vmax−Vmin between a maximum elementary voltage (Vmax) defined by a voltage of the elementary cell which is the most charged (C 2 ) and a minimum elementary voltage (Vmin) defined by a voltage of the elementary cell which is the least charged (C 9 ) of said electric energy storage unit ( 12 ); said state of health data (DeltaV) being representative of the capacity of the electric energy storage unit ( 12 ) to fulfil its function in said micro-hybrid system ( 1 ); the method further comprising the step of defining an optimal driving of said micro-hybrid system ( 1 ) by taking into account, in said electronic control unit ( 14 ), said state information including said state of health data (DeltaV).