Patent ID: 7116078
Filing Date: 2006-10-03
Classification: H02J

Abstract:
1. A protection system of a battery of a vehicle, the vehicle having a motor, an ignition system (MA) of the motor, a battery (BA) used by the ignition system (MA) in order to start the motor, an alternator (AL) actuated by the motor in order to recharge the battery (BA) and at least one electric load (CS) supplied by the battery (BA), the protection system comprising a device ( 1 ) for electrically disconnecting or connecting the battery (BA) with respect to the electric load (CS), the device ( 1 ) having switch means ( a microprocessor control circuit ( the control circuit ( the electrical quantity (V_BATT, VB_AVG) is the mean value of voltage of the battery (BA), the threshold value (VTH) is variable in function of the ambient temperature (TEMP) and the time of inactivity of the motor (E_OFF), the actuation means comprise a bistable electromagnetic arrangement (