| 摘要 |
<p>PCT No. PCT/EP85/00148 Sec. 371 Date Dec. 31, 1985 Sec. 102(e) Date Dec. 31, 1985 PCT Filed Apr. 2, 1985 PCT Pub. No. WO85/05600 PCT Pub. Date Dec. 19, 1985.A drive unit for a vehicle comprises an engine for driving a gear-shift transmission through an input shaft. The input shaft is also coupled via a gear assembly and a hydrodynamic coupling to a flywheel accumulator. During acceleration of the vehicle, kinetic energy stored in the flywheel flows to the input shaft of the transmission. When braking takes place, energy from the input shaft flows to the flywheel accumulator. The torque transmitted by the hydrodynamic coupling is adjustable. As the coupling slippage approaches a boundary of a slippage region in the coupling, a control device effects a switching of the gear-shift transmission whereby readjustment of the coupling slippage is achieved. Furthermore, the control device controls the gear-shift transmission-on the basis of whether "acceleration" or "braking" is demanded-such that the speed of rotation of a first coupling half in the coupling, as viewed from the direction of energy flow, is greater than the speed of rotation of another coupling half.</p> |
