Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1995-08-31
1998-01-27
Moulis, Thomas N.
Internal-combustion engines
Charge forming device
Fuel injection system
123198D, F02M 4702
Patent
active
057112738
ABSTRACT:
In one aspect of the present invention, a method for detecting an electrical fault condition of a driver circuit is disclosed. The driver circuit is used to energize an electrohydraulic device that regulates fluid pressure. The method detects the fault condition, and responsively switches from a normal fluid pressure control strategy to a fault mode fluid pressure control strategy in order to continue to control the fluid pressure during the fault condition.
REFERENCES:
patent: 5191867 (1993-03-01), Glassey
patent: 5357912 (1994-10-01), Barnes et al.
patent: 5492099 (1996-02-01), Maddock
patent: 5564391 (1996-10-01), Barnes et al.
patent: 5586538 (1996-12-01), Barnes
Barnes Travis E.
Parupalli Prasad V.
Caterpillar Inc.
Masterson David M.
Moulis Thomas N.
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