| 摘要 |
<p>A first signal generator produces a signal proportional to a desired vehicle speed. A second signal generator produces a signal proportional to the actual vehicle speed. A circuit compares the signals to detect any difference, and controls an actuator to adjust the power output control to tend to eliminate the difference. The actual speed will thus then to approach the desired speed. The first signal generator can, if desired, be operated by the occupant of the vehicle as part of his propulsive effort, for example by driving a bicycle chain drive.</p> |
