Internal-combustion engines – Engine speed regulator – Engine speed reduction by fuel cutoff
Patent
1989-12-15
1991-09-17
Dolinar, Andrew M.
Internal-combustion engines
Engine speed regulator
Engine speed reduction by fuel cutoff
123397, 123399, 731181, F02D 4122
Patent
active
050484818
ABSTRACT:
A safety method is provided for use with control systems for vehicles such as trucks, and in particular for electromechanical controls (10) that assist the driver in shifting the gears (12), operating the clutch (16), and in actuating the throttle (22, 24, 26) by remote control. The method, which is for use in a vehicle's throttle-actuator subsystem (26A), utilizes a transmission control processor (42A) and a throttle control processor (42B). The method ascertains whether, when the driver of the vehicle removes his foot from the accelerator pedal (24A), control of the fuel pump (26C) returns to the idle governor as it should. The flow of fuel is stopped if it does not return properly. Also, a method is provided that monitors the throttle actuator (26A) to insure that it accurately follows throttle commands such as the position of the accelerator pedal (24A).
REFERENCES:
patent: 4305359 (1981-12-01), Mann et al.
patent: 4488527 (1984-12-01), Pfalzgraf et al.
patent: 4519360 (1985-05-01), Murakami
patent: 4603675 (1986-08-01), Junginger et al.
patent: 4854283 (1989-08-01), Kiyono et al.
Chan Kwok W.
Cote William F.
Miller Louis E.
Dolinar Andrew M.
Eaton Corporation
Gordon H. D.
Grace C. H.
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