| 摘要 |
A control system for a vehicle, which can be used for controlling an ignition system, a petrol injection system or an engine overspeed control, has an electrically powered radiation source and a radiation receiver which is exposed to the source from time to time through the intermediary of means driven by the engine. When the receiver is exposed to the source, the current flowing through the source is increased rapidly by regenerative action, and moreover there is a constant current flowing through the source which is just sufficient to cause it to radiate. |
