| 摘要 |
A variable braking system may include an outer wheel, a wheel hub, a magnet, a coil, a brake pedal sensor, an electrorheological (ER) fluid, and an electricity supplying unit. The wheel hub may have a wheel flange, be rotatably coupled with the outer wheel and form a braking chamber together with the outer wheel. The magnet may be coupled to the wheel hub in the braking chamber. The coil in the braking chamber may be coupled to the outer wheel to generate current by the magnet when the wheel hub rotates. The brake pedal sensor may output a first signal by detecting an actuation angle of a brake pedal. The ER fluid may be filled in the braking chamber and interfere the rotation of the wheel hub according to selective supply of electricity to the ER fluid. The electricity supplying unit may selectively supply electricity to the ER fluid according to the first signal of the brake pedal sensor. |
