| 摘要 |
PURPOSE:To reduce the size and weight of a braking resistor by supplying braking power to an AC generator coupled with an internal combustion engine at a braking time and also to the resistor. CONSTITUTION:The output of a synchronous motor 2 coupled with an engine 1 is supplied through armature converters 13L, 13R, and shortcircuiting switches 17L, 17R to the armatures 4L, 4R of a wheel drive motor, and through a field converter 14 and a front/reverse changing switch 19 to field windings 5L, 5R. A motor operates as a generated at the braking time, the switches 17L, 17R become OFF to supply the brake power through braking resistors 16L, 16R, the converters 13L, 13R to a synchronous generator 2. At this time, the switch 19 is changed, and the directions of currents flowed to the windings 5L, 5R are reversed. |
