Electronic control module
First Claim
1. An electronic control module for a vehicle comprising a first processor adapted to calculate fuelling requirements of the engine and spark advance on the basis of engine operating conditions, and a second processor adapted to initiate fuel injection and ignition on the basis of engine position.
2 Assignments
0 Petitions
Accused Products
Abstract
An electronic control module for use in controlling a vehicle comprises a first processor 10 adapted to calculate the fuelling requirements of the engine and spark advance, and also to control a plurality of diagnostic tests for testing engine operating paramenters. A second processor 12 triggers the spark and spark dwell timing together with the start of fuel injection. By such partitioning of tasks, it is possible to provide a wide variety of facilities with a low cost electronic control module. The second processor 12 is adapted to operate the engine in a back-up mode on failure of the first processor 10 by use of look-up tables for fuel pulse width and spark advance. The vehicle therefore remains operational even on failure of part of the electronic control module.
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Citations
9 Claims
- 1. An electronic control module for a vehicle comprising a first processor adapted to calculate fuelling requirements of the engine and spark advance on the basis of engine operating conditions, and a second processor adapted to initiate fuel injection and ignition on the basis of engine position.
Specification