Method of detecting cylinder pressure and cylinder pressure dete

Details Method of detecting cylinder pressure and cylinder pressure dete Method of detecting cylinder pressure and cylinder pressure dete

1986-12-02

1988-01-05

Myracle, Jerry W.

Measuring and testing

Vehicle drive train

Rear end

73709, G01M 1500

Patent

active

047167599

ABSTRACT:
A method of detecting cylinder pressure and a cylinder pressure detection device in an internal combustion engine. Two reference values are set and then adjusted so that the maximum pressure value output by a cylinder pressure sensor falls between them. At least one of the reference values is then approximated to the maximum output and the magnitude of the approximated reference value is deemed to represent the maximum value. The crank angle at which the detected maximum pressure value occurred is determined with respect to reference point such as top dead center.

REFERENCES:
patent: 4481924 (1984-11-01), Kobayashi
patent: 4565087 (1986-01-01), Damson et al.

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