Fail-soft turbocharger control system

Details Fail-soft turbocharger control system Fail-soft turbocharger control system

1983-02-16

1986-08-05

Gruber, Felix D.

Boots, shoes, and leggings

60603, 36443102, 36443111, 364551, F02B 3712, F02D 2300, G01M 1500

Patent

active

046047018

ABSTRACT:
In a turbocharger control system which includes fault testing circuitry which automatically senses and compares engine operating parameters of manifold pressure, exhaust temperature, engine speed, and actuator position, compares the sensed values to predetermined norms to establish the validity of the signals, in which substitutes preestablished values for the sensed signals when the sensed signal is determined to be invalid. The substituted value may be a value stored in the memory of a microprocessor used in the system or a value derived from a signal received from a different but corresponding sensor of the engine being controlled.

REFERENCES:
patent: 4267569 (1981-05-01), Baumann et al.
patent: 4277830 (1981-07-01), Reid et al.
patent: 4292806 (1981-10-01), Moore et al.
patent: 4292807 (1981-10-01), Rannenberg
patent: 4442424 (1984-04-01), Shirasaki et al.
Bowler: Throttle Body Fuel Injection--An Integrated Engine Control System, Society of Automotive Engineers Paper #800164, Feb. 1980, pp. 1-13.
Walters: Electronic Emission Control Diagnoses Its Own Problems, Society of Automotive Engineers, Automotive Engineering, Aug. 1980, pp. 43/48.

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