Honda Motor Co., Ltd.

Tadashi Fujiwara

C Richard Owens, Jr

Richard Owens

John Sgueglia

Nick Scheufler

Makoto Murata

Toshihiro Okama

A vehicle having an electrical system including an electric power generator arranged to selectively provide electric power to an electrical load of the vehicle and to selectively charge a battery of the vehicle. A fault detection system is provided for detecting an open circuit or high resistance fault in a ground circuit. The fault detection system includes a controller that controls a voltage output of the generator so as to either restrict or suspend charging or increase or start charging of the battery by the generator for a designated test period. A determining means determines a current discharge from or charging current into the battery during the test period, wherein if the determined current discharge or charging current is less than a given threshold, then an open circuit or high resistance fault is deemed to be detected in the ground circuit.

Automotive battery circuit fault detection

A generator control system is provided in a vehicle having an engine that drives an electric power generator arranged to selectively provide electric power to an electrical load of the vehicle and to selectively charge a battery of the vehicle. The generator control system includes: a sensor that detects a state of charge (SOC) of the battery; and, a controller that controls a voltage output mode of the generator in response to the SOC detected by the sensor.

ACG output voltage control

A system provides generator control for a power system within a vehicle. The system includes a battery, a generator that outputs power to charge the battery. A sensor detects a state of charge (SOC) value, a health value, a voltage, a current, a temperature, and a charging voltage of the battery. A controller controls a voltage output mode of the generator in response to at least one of a state of charge (SOC) value, a health value, a voltage, a current, a temperature, and a charging voltage of the battery detected by the sensor, the voltage output mode is in response to the SOC and the temperature of the battery.

A battery control system and method for a battery of a vehicle includes a battery for supplying electrical power to a plurality of loads of the vehicle and a controller that receives a battery signal representative of a condition of the battery, an ignition key signal representative of a state of an ignition key of the vehicle, and an engine signal representative of a state of an engine in the vehicle. The controller selectively electrically connects/disconnects the plurality of loads of the vehicle and the battery based on at least one of the battery signal, the ignition key signal, and the engine signal. An interface provides information on at least one of the battery and a connection state between the plurality of loads and the battery.

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Dublin, OH, United States of America

Tadashi Fujiwara