| 摘要 |
A speed control system for a vehicle, especially an internal combustion powered vehicle, includes a driver-settable member which has up to four distinct regions of adjustment, namely idling, deceleration, cruising and acceleration. The cruising region includes a mechanical or other pressure point to provide a sensible signal to the operator of the vehicle indicating the constant speed region. The apparatus of the invention prescribes a function generator which generates a voltage as a non-linear function of the driver-settable member and supplies it to a voltage-controlled oscillator. The output signal of the oscillator is fed to an integrating stage whose direction of integration is controlled by suitable logical circuits which detect the region occupied by the driver-settable member and the difference between the set-point value supplied by the integrator and the actual vehicle or engine speed. Other circuitry controls idling rpm. |
