System and method for monitoring engine performance characterist

Details System and method for monitoring engine performance characterist System and method for monitoring engine performance characterist

1997-12-31

1999-08-10

Dombroske, George

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

73 3512, 731173, G01M 1500

Patent

active

059351896

ABSTRACT:
A system and method for monitoring engine performance characteristics such as knock and misfire. The system includes a pressure sensor coupled to an exhaust manifold of an engine being monitored by the system, a motion sensor operatively coupled to the engine's block, an engine position sensor, a load sensor and a processor adapted to independently process the outputs of the pressure sensor and the motion sensor to determine an occurrence of a knock event. The outputs of the pressure sensor and engine position sensor are processed to identify which cylinders are knocking. The outputs of the pressure sensor, load sensor and engine position sensor are processed to determine an occurrence of a misfire condition and to identify which cylinders are misfiring.

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