| 摘要 |
PROBLEM TO BE SOLVED: To achieve a hybrid automobile that can perform retract driving, does not apply load to a capacitor for smoothing of an inverter, and is strong against the control disturbance such as curbstone stranding and slip. SOLUTION: When the trouble of a main battery 12 is detected, an SMR 24 is turned off for shifting to a retract driving, at the same time transistors Q7 -Q12 of an inverter 20 are turned off and the DC output of the inverter 20 is allowed to follow the output fluctuation of a motor 10, thus preventing the output surplus of the inverter 20 leading to the overvoltage charging of smoothing capacitors C1 and C2 . Then, even if the output of the motor fluctuates due to, for example, the stranding onto a curbstone, it is possible to follow the fluctuation rapidly. |
