| 摘要 |
The invention relates to an electric propulsion system for a multi-wheeled vehicle including though not limited to a bicycle. The preferred embodiment consists of a standard street bicycle with multi-speed transmission, plus an electrical propulsion system and a solar charging apparatus. This preferred embodiment is normally powered by a combination of motor and pedals, coupled such that either or both may provide power at any time. The electrical propulsion system consists of: a) a DC electric motor, B) a plurality of batteries, C) a hand lever operating a throttle means, D) a throttle means which controls a battery switching circuit for altering the plurality of batteries into a parallel configuration for a lower voltage to facilitate regenerative charging at times, and into a series configuration at other times for a higher drive voltage for the motor, as well as controls a voltage regulating circuit which regulates voltage to the motor, E) a continuously variable automatic transmission which selects the correct ratio for conditions between a high and a low limit without intervention by the operator, as well as automatically regulates clutching friction, and F) A regenerative braking arrangement which converts forward momentum of bicycle and rider into a charging current for the plurality of batteries during braking or slowing. The solar apparatus consists of a plurality of solar cells mounted on a disc fitted outside the spokes on either or both sides of either or both wheels. A rotatable coupler conducts the solar charging current from the solar cells to the plurality of batteries.
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