Battery assembly system and electric-motor vehicle system using the same
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Abstract
The battery assembly system 100 includes a battery assembly including a plurality of storage batteries C1 to Cn connected in series, a voltage detector 3 for detecting respectively voltages generated in the storage batteries, a current detector 4 for detecting a current flowing in the plurality of storage batteries, a state-of-charge (SOC) calculator 2 for calculating the state of charge (SOC) of the storage batteries, respectively, based on the voltages detected respectively by the voltage detectors 3 and the current detected by the current detector 4, and a charging/discharging unit 1 for charging or discharging at least one of the plurality of storage batteries so as to equalize the SOC of the storage batteries calculated respectively by the SOC calculator 2.
33 Citations
20 Claims
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1-14. -14. (canceled)
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15. An electric-motor vehicle system comprising
a battery assembly system, comprising a battery assembly comprising a plurality of storage batteries connected in series, a voltage detector for detecting respective voltages generated in the storage batteries constituting the battery assembly, a current detector for detecting a current flowing in the plurality of storage batteries, a state-of-charge (SOC) calculator for calculating the state of charge (SOC) of the storage batteries, respectively, based on the voltages detected by the voltage detectors, respectively and the current detected by the current detector, and a charging/discharging unit for charging or discharging at least one of the plurality of storage batteries so as to equalize the SOC of the storage batteries calculated by the SOC calculator, respectively an engine for generating power to be transmitted to wheels, a motor provided for assisting the power generated by the engine to be transmitted to the wheels at the time of acceleration of the engine, and an inverter for supplying the motor with electric power obtained by discharging the battery assembly of the battery assembly system at the time of acceleration of the engine.
Specification