| 摘要 |
PURPOSE:To simplify the structure and to absorb the speed reduction energy through the compressor, by detecting the release of the stepping of the accelerator pedal and the engine rotation exceeding over the set level then feeding the car speed reduction signal. CONSTITUTION:Under the engine brake state the accelerator switch 62 is turned off to bring the input of the terminal 60a to H, while since the engine rotation is higher than the idling rotation and the input of the outer terminal 60b is high, NAND gate 60 will produce the L level signal. The voltage at the non-inverted input side of the operational amplifier 70 is dropped to the ground side to bring the output Eo to the minimum thereby the supply voltage E to the operational amplifier 79 is brought to the minimum and the compressor TE' is driven at the temperature level of TE', thereby the operating ratio is set to the maximum irrespective of the output level from the inner air temperature sensor 73. Consequently the speed reduction energy can be absorbed resulting in the power saving. |
