| 摘要 |
<p>A six-pole motor to provide shaft power to drive the pump in an anti-lock braking system (ABS) in an automotive application is disclosed. The system is adapted for a vehicle having a plurality of rotating wheels, and includes a plurality of braking elements actuated by a hydraulic fluid and coupled individually to each of the wheels for slowing their rotational speed. The anti-lock braking system also includes a plurality of wheel-speed detectors coupled to each of the wheels for detecting their rotational speed and for generating an activation signal representative of a difference in speed. The system further includes a hydraulic control unit for controlling and modulating the hydraulic fluid to the braking elements based on the activation signal, and a hydraulic pump for pressurizing the hydraulic fluid including the motor, which is adapted to supply power to the hydraulic pump. The motor features a stator assembly with a housing and a plurality of magnet segments charged to form a six-pole magnetic circuit, an armature assembly rotatably received within the stator assembly with a plurality of wire windings arranged in a wave-winding pattern and a commutator at which wire windings originate and make electrical contact, a brush card assembly mounted within the housing having a pair of brushes which make electrical contact with the commutator during rotation of the armature assembly, and a drive shaft rotating with the armature assembly coupled to the hydraulic pump for providing output power. <IMAGE></p> |
