Input-output unit for a microprocessor engine control system

Details Input-output unit for a microprocessor engine control system Input-output unit for a microprocessor engine control system

Filed on

1982-05-20

Date issued

1985-10-01

Examiner

Gruber, Felix D.

Patent Class

Boots, shoes, and leggings

Other Related Categories

123417, 123480, G06F 1520, G05B 1502, F02D 502

Type

Patent

Status

active

Patent number

RE0319970

Description

ABSTRACT:
Repetitive operations, such as fuel injection and/or ignition timing of a gasoline engine, are controlled by a microprocessor with reference to engine operation parameters that provide electrical inputs in a manner achieving increased efficiency and economy by the provision of an input-output unit that supplies considerable preprocessing of the input signals under control of the microprocessor through the usual data and address buses. Counters are operated to count down from count limit values. The counting rate, as well as the count limit values, are capable of being varied by commands through the data bus, from time to time, so as to make the capabilities of the system adaptable to a wide variety of particular engines. The system is readily programmable for a particular application or machine if a programmable read-only memory (PROM or EPROM) is used for programming the microprocessor.

REFERENCES:
patent: 3875564 (1975-04-01), Thuruoka et al.
patent: 4003033 (1977-01-01), O'Keefe et al.
patent: 4009699 (1977-03-01), Hetzler et al.
patent: 4060714 (1977-11-01), Lappington et al.
patent: 4063539 (1977-12-01), Gorille et al.
patent: 4082069 (1978-04-01), Mayer
patent: 4099495 (1978-07-01), Kiencke et al.
patent: 4140087 (1979-02-01), Daumer et al.
patent: 4199812 (1980-04-01), Klotzner
patent: 4276602 (1981-06-01), Obara et al.

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