Throttle actuator and control system

Details Throttle actuator and control system Throttle actuator and control system

1990-06-01

1991-05-21

Wolfe, Willis R.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

318599, 25112911, F02D 1110

Patent

active

050165887

ABSTRACT:
An actuator for the throttle of an internal combustion engine comprises a torque motor and a return spring. The spring provides a monotonically increasing return force for increasing throttle opening. The motor has a torque characteristic such that, for constant motor current, the torque decreases monotonically for increasing throttle opening. The actuator thus has a single-valued function of throttle position versus motor current and allows open loop control as well as stable closed loop control.

REFERENCES:
patent: 4639624 (1987-01-01), Ejiri et al.
patent: 4675589 (1987-06-01), Sausner et al.
patent: 4721176 (1988-01-01), Kabasin et al.
patent: 4819597 (1989-04-01), Gale et al.
patent: 4850322 (1989-07-01), Uthoff et al.
patent: 4900998 (1990-02-01), Shyi

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