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    • 18. 发明专利
    • PROCESSING METHOD OF VEHICLE HEIGHT SENSOR
    • JPS6082903A
    • 1985-05-11
    • JP19197083
    • 1983-10-14
    • TOYOTA MOTOR CO LTD
    • OOHASHI KAORUHAYASHI KUNIHISA
    • B60G17/00G01B11/02G01D5/26
    • PURPOSE:To prevent thermal deterioration of a vehicle height sensor and to improve reliability by shutting off at least a current supply circuit for light emitting elements except in the stage of detecting the relative displacement on the top and bottom side of the spring of a vehicle thereby decreasing the self heating value of the vehicle height sensor. CONSTITUTION:A microcomputer 66 is first initialized and whether the current conducting period for passing current to a power source line 100 is 4 or not is decided. If the result of decision is yes, both transistors 58, 60 are turned on by the command outputted from an input buffer circuit 64 to pass the current to the line 100. Whether the first time 10 of the current conducting time 50 for a vehicle height sensor 10 elapses or not is decided and if the result of the decision is yes, signals e2-e5 from signal lines 102, 104, 106, 108 are taken in and the relative displacement on the top and bottom side of the spring of the vehicle is calculated. The current conduction to the line 100 is then stopped and the process for adjusting the vehicle height according to the relative displacement calculated by the microcomputer 66 is accomplished.