| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit system by which energy that cannot be regenerated is accumulated in an electric storage device mounted on a vehicle, and the energy can be used at power running next time, when a stringing voltage rises with no load in others at using a regenerative brake in order to always use regenerative energy effectively. SOLUTION: The circuit system includes a main circuit 200, a current detector 11, the electric storage device 65, a main circuit 106 of a chopper device, a voltage detector 14, an adjusting charge-and-discharge control portion 103, a charge controlling portion 101, a discharge controlling portion 102, a current controlling portion 104 of the electricity storage device, and a PWM modulating portion 105. The main circuit 200 comprises a current collector 50, a filter reactor 51, a filter capacitor 52, an inverter 53, a wheel 55 and a motor 54. The modulating portion generates signals (an upper arm ignition signal PH, a lower arm ignition signal PL) to control power source supply to the electric storage device 65 of the main circuit 106 of the chopper device, and outputs the signals PH, PL to the main circuit 106 of the chopper device. COPYRIGHT: (C)2007,JPO&INPIT
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