CONTROL CIRCUIT MEANS FOR AFTER-CONTROL OF CONTROL SYSTEM

Japanese Patent JP3670669

B2

PURPOSE: To switch off from the supply voltage without using a relay so as to reduce cost by terminating an after-control after the opening of an ignition switch by regulating the potential at the control input of a voltage regulator.
CONSTITUTION: When the connection between a battery BA and a resistor R1 is interrupted by an ignition switch ZS, the On input side of a voltage regulator IC1 is continuously controlled by using the charge stored by a condenser C1 until the condenser C1 is discharged by the input voltage applied to the input side On of the voltage regulator IC1. During the time interval when the input side On of the voltage regulator IC1 is controlled, the voltage regulator supplies the supply voltage UVCC in a control system. After the potential of the input side On of the voltage regulator IC1 becomes lower, the voltage UVCC is not supplied immediately and the control system is shut off. Thus, the connection time of the after-control corresponds to the time needed until the condenser C1 is discharged. In this way, it is not necessary to use the expensive relay.

JPS63268957	CONTROL FOR ENGINE
JP2012154288	INTERNAL COMBUSTION ENGINE CONTROL DEVICE
JP2008267188	CONTROL UNIT OF INTERNAL COMBUSTION ENGINE

Reinhard Gantenbein
Herbert Arnold

JP33593292A

July 13, 2005

December 16, 1992

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ROBERT BOSCH GMBH

F02D45/00; G05F1/46; G05F1/569; B60R16/02; (IPC1-7): F02D45/00; B60R16/02

JP57208825A
JP518315A
JP378944U

Toshio Yano
Toshiomi Yamazaki
Reinhard Einsel

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