| 摘要 |
PURPOSE:To prevent shock due to turning-on and -off of a compressor and reduce the engine load by feeding the oil pressure sensed signal of power steering device to the control part of an air-conditioner through a delay circuit for turning off the air-conditioner, and cancelling the signal when the power steering is operated for a short time. CONSTITUTION:When a power steering oil pressure sensed switch 21 is shut with driving of an oil pressure pump, the On signal is inverted by an inverter gate 22 and fed to a delay circuit 23. The delay circuit 23 inputs to a compressor control part 20 after a certain specified time, i.e., with a delay of 0.5-0.7sec. If an L signal is continued emitted from this compressor control part 20, a switching transistor Tr is turned off, and the contact of a relay 15 is opened to stop the compressor. The transistor Tr is continued in On with turning-off of the switch output within the delay time, and the compressor will not stop. This reduces shock and decreases engine load. |
