Real-time computerized engine analyzer using multiple analog-to-

Details Real-time computerized engine analyzer using multiple analog-to- Real-time computerized engine analyzer using multiple analog-to-

1992-02-03

1996-01-02

Snow, Walter E.

Electricity: measuring and testing

Internal-combustion engine ignition system or device

With analysis of displayed waveform

36443101, F02P 1700, G06F 1520, G06F 1900, G06G 770

Patent

active

054811937

ABSTRACT:
An engine analyzer for an internal combustion engine converts an engine waveform into a digital waveform which is displayed on a monitor. The waveform is converted using two analog-to-digital (A/D) conversion channels. A dedicated A/D control microprocessor is used to control the flow of the digital waveform data between the analog-to-digital conversion channels and a main computer. Waveform data transfer to the main computer is over a dedicated, high speed data bus. A peripheral control microprocessor is used to monitor other engine parameters and shares memory with the A/D control microprocessor.

REFERENCES:
patent: 4267569 (1981-05-01), Baumann et al.
patent: 4476531 (1984-10-01), Marino et al.
patent: 4812768 (1989-03-01), Quinn
patent: 4937579 (1990-06-01), Maio et al.
patent: 5109188 (1992-04-01), Sanderson et al.
patent: 5180971 (1993-01-01), Montijo

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