Protection system of a vehicle battery

Details Protection system of a vehicle battery Protection system of a vehicle battery

2006-10-03

2006-10-03

Tibbits, Pia (Department: 2838)

Electricity: battery or capacitor charging or discharging

One cell or battery charges another

Vehicle battery charging

Reexamination Certificate

active

07116078

ABSTRACT:
A system for protecting the battery of a vehicle includes a device (1) for electrically disconnecting of connecting the battery (BA) with respect to an electric load (CS). The device (1) includes a switch (20, 21) and a microprocessor control circuit (15). The control circuit (15) includes a unit for calculating a mean value of the voltage of the battery (BA) and comparing it with a threshold value, in order to control the switch (20, 21). The threshold value is variable as a function of the ambient temperature and the time of inactivity of the motor. The switch includes a bistable electromagnetic arrangement, capable of passing from a first to a second stable condition following a pulse generated by the control circuit (15).

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