Failsafe engine fuel control system

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123479, F02D 4122, F02D 4134, F02M 5100, G05D 1702

Patent

active

047046856

ABSTRACT:
A failsafe engine fuel control system is disclosed in which a primary control signal, normally a direct function of an engine manifold pressure sensor signal, is utilized by an electronic engine control microprocessor to calculate control signals for engine fuel injectors and engine spark apparatus. Pressure sensor failure detection apparatus is provided which, in the event of the engine manifold pressure sensor signal being non-representive of actual engine manifold pressure, results in making the primary control signal utilized by the microprocessor a direct function of at least an analog sensor signal representative of engine throttle position rather than engine manifold pressure. Preferably, in the event of a pressure sensor failure the primary control signal is calculated as a function of both a throttle position signal and an engine speed signal.

REFERENCES:
patent: 4255789 (1981-03-01), Hartford et al.
patent: 4271402 (1981-06-01), Kastura et al.
patent: 4274381 (1981-06-01), Abo
patent: 4287503 (1981-09-01), Sumida
patent: 4328578 (1982-05-01), Bell
patent: 4395905 (1983-08-01), Fujimori et al.
patent: 4408584 (1983-10-01), Yabuhara et al.
patent: 4410938 (1983-10-01), Higashiyama
patent: 4425889 (1984-01-01), Hachitani et al.
patent: 4430979 (1984-02-01), Shikata
patent: 4450812 (1984-05-01), Otsuka et al.
Bowler: Throttle Body Fuel Injection: an Integrated Engine Control System, Automotive Engineering, vol. 88, No. 10, Oct. 1980, pp. 102-110.
Walters: Electronic Emission Control diagnoses its own problems, Automotive Engineering, vol. 88, No. 8, Aug. 1980, pp. 43-48.
Czadzeck & Reid: Fords 1980 Central Fuel Injection Systems, Society of Automotive Engineers, Article SAE, 790742, p. 34 in Book, SP 477, Implementation of Engine Control Strategies with Electronics, p. 34.
Russo and Pauwels, EFl for the 80's--A Base Model Fuel Control System. SAE 830422, in SAE Book SP540, Electronic Engine/Drivetrain Control, Feb. Mar, 1983, p. 15.

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