Redundant reset for electronic throttle control

Details Redundant reset for electronic throttle control Redundant reset for electronic throttle control

1990-05-11

1991-03-12

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123179B, 123179G, 36443111, F02D 1110, F02D 4126

Patent

active

049985205

ABSTRACT:
Redundancy is imparted to the reset signal from a voltage regulator integrated circuit by connecting an RC timing circuit with the regulated voltage output and with the reset pulse output such that a reset pulse derived from the regulated output voltage is given in the event that the reset output of the integrated circuit fails to give a reset pulse. An over-/under-voltage detector monitors the regulated voltage output for also giving a reset signal in the event that the regulated output strays beyond allowable limits. The occurrence of a reset causes interruption of electric power to the throttle motor and of fuel to the engine.

REFERENCES:
patent: 4205376 (1980-05-01), Yoshida
patent: 4282574 (1981-08-01), Yoshida et al.
patent: 4397281 (1983-08-01), Nakano et al.
patent: 4546736 (1985-10-01), Moriya et al.
patent: 4788661 (1988-11-01), Morita
patent: 4888697 (1989-12-01), Hemminger et al.

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