Control system for a vehicle-mounted battery

Electricity: battery or capacitor charging or discharging – One cell or battery charges another – Vehicle battery charging

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H01M 1046

Patent

active

059558652

ABSTRACT:
The state of charging and discharging of a secondary cell circuit varies with battery deterioration and with the margin for charging and discharging. The state of charging and discharging is detected accurately without coming into contact with any unit cells, and maintenance and inspection can be performed efficiently. Charging and discharging characteristics of the battery are held in a memory, and charging current and discharging current are controlled by comparing measured voltage and current values with the charging and discharging characteristics held in the memory. Furthermore, battery information relating to each unit cell is transmitted by radio signals and the substance of this information is displayed at the driver's seat.

REFERENCES:
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patent: 5608308 (1997-03-01), Kiuchi et al.
patent: 5684383 (1997-11-01), Tsuji et al.
Minoru Kitagawa, et al., "Development of Battery State Charge Indicator for Electric Vehicles", Dec. 5, 1994, International Electric Vehicle Symposium, Anaheim, Dec. 5-7, 1994, vol. 1, Symp. No. 12, pp. 293-302, Electric Vehicle Association of the Americas.
Jiri K. Nor, et al., "Very Fast Battery Charging and Battery Energy Management", Dec. 5, 1994, International Electric Vehicle Symposium, Anaheim, Dec. 5-7, 1994, vol. 1, Symp. No. 12, pp. 117-125, Electric Vehicle Association of the Americas.

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