Throttle control method for internal combustion engine

Details Throttle control method for internal combustion engine Throttle control method for internal combustion engine

1990-05-29

1991-09-17

Wolfe, Willis R.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123400, F02D 908, F02D 4102

Patent

active

050484850

ABSTRACT:
A throttle control method for an internal combustion engine wherein a motor is connected through a clutch mechanism to a throttle valve which is constantly biased toward a closed position by a return spring. The motor is controlled in accordance with an output signal from a throttle sensor which detects the degree of opening of the throttle valve. This arrangement controls the amount of intake air into the internal combustion engine. The clutch mechanism is engaged and disengaged in accordance with a running condition of the vehicle and an operating condition of the internal combustion engine. An operating condition of the motor, the throttle sensor, the clutch mechanism and the return spring, is detected by activating the motor and the clutch mechanism, and when an abnormality is detected in at least one of the devices, both the motor and the clutch mechanism are deactivated.

REFERENCES:
patent: 4120373 (1978-10-01), Fleischer
patent: 4892071 (1990-01-01), Asayama
patent: 4898138 (1990-02-01), Nishimura et al.
patent: 4919097 (1990-04-01), Mitui et al.
patent: 4969431 (1991-11-01), Wataya

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