| US 7,615,943 B2 | ||
| Control apparatus and method for electric vehicles | ||
| Tsuneyuki Egami, Gamagori (Japan); and Keiichi Kawakami, Anjo (Japan) | ||
| Assigned to DENSO Corporation, Kariya (Japan) | ||
| Filed on Nov. 29, 2006, as Appl. No. 11/605,456. | ||
| Claims priority of application No. 2005-343750 (JP), filed on Nov. 29, 2005. | ||
| Prior Publication US 2007/0119634 A1, May 31, 2007 | ||
| Int. Cl. H02P 5/00 (2006.01) | ||
| U.S. Cl. 318—139 [318/700; 318/801] | 16 Claims |
| 1. A control apparatus for an electric vehicle, comprising:
a power converter that converts a voltage supplied by a DC power supply into a system voltage appearing on a power supply
line;
a motor driving unit that includes an inverter connected to the power supply line and an AC motor driven by the inverter;
and
a system voltage controller that executes system voltage stabilization control to suppress variations in the system voltage
by adjusting an input power of the motor driving unit, while sustaining a torque generated by the motor driving unit at a
torque command value;
wherein the system voltage controller controls the system voltage by adjusting an input power of the AC motor different from
an input power required for the AC motor to generate torque.
|