| 摘要 |
<p>A gear drive connects the vehicle drive shaft with a flywheel. When the engine output torque falls to zero a clutch disconnects it from the shaft and a clutch connects the gear to the shaft. The kinetic energy of the vehicle is then absorbed by the flywheel which brakes the vehicle. The braking effect is varied by variation of the gear ratio. When the drive shaft ceases to rotate, a clutch disconnects the flywheel from the gear drive. The drive is reconnected when the vehicle is to be restarted so that the energy stored in the flywheel can be returned to the shaft.</p> |
