Oxygen sensor qualifier
Patent
·
OSTI ID:6292405
A method and apparatus for controlling the various functions of an internal combustion engine using a program-controlled microprocessor system having a memory preprogrammed with various control laws and associated control schedules receives information concerning one or more engine-operating parameters such as manifold pressure, throttle position, engine coolant temperature, air temperature, engine speed or period, and the like. These parameters are sensed and then supplied to input circuits for signal conditioning and conversion into digital words usable by the microprocessor system. The microprocessor system computes a digital command word indicative of a computercommanded engine control operation and output circuitry responds to predetermined computer-generated commands and to the computed digital command word for converting them to corresponding pulsewidth control signals for controlling such engine operations as fuel-injection, ignition timing, proportional and/or on-off egr control, and the like.
- Assignee:
- Bendix Corp The
- Patent Number(s):
- US 4245314
- OSTI ID:
- 6292405
- Country of Publication:
- United States
- Language:
- English
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