Title: Apparatus for adjusting the hight of means of delivery
Application Number: 85108893 Application Date: 1985.12.06
Publication Number: 1003031 Publication Date: 1986.09.10
Approval Pub. Date: 1989.01.04 Granted Pub. Date: 1989.01.04
International Classifi-cation: B60G17/00;G05D1/00;G05D3/00
Applicant(s) Name: Hitachi, Ltd. Address:
Inventor(s) Name: Sakaida Teruyasu
Attorney & Agent: YU YUCHENG
Abstract:
    A vehicle height adjusting device comprises a vehicle height sensor, means for controlling the vehicle height, driving means for adjusting the vehicle height, constant voltage conversion means for converting a power supply voltage into a constant voltage and supplying the constant voltage to the means for controlling the vehicle height, and power supply control means for on-off controlling the supply of the power supply voltage. The vehicle height adjusting device further comprises means for stopping the power supply by a power supply stopping signal from the vehicle height control means when a predetermined time elapses after the ignition switch is turned off, and low voltage detecting means for stopping the operation of the means for controlling the vehicle height when the power supply is stopped and the output voltage from the constant voltage conversion means becomes lower than a predetermined reference voltage. An integrating circuit can be used in place of the low voltage detecting means. The vehicle height adjusting device performs an assured self-cut-off operation.
Time: 6