Measuring and testing – Internal combustion engine or related engine system or... – Compression
Patent
1996-07-26
1998-05-05
Dombroske, George M.
Measuring and testing
Internal combustion engine or related engine system or...
Compression
73116, G01M 1500, G01L 326
Patent
active
057476845
ABSTRACT:
Opening and closing times of a fuel injector are accurately determined in accordance with the energy content of an accelerometer trace. The energy content of an accelerometer trace is determined in accordance with a predetermined relation. A line is defined between known points prior to and after the opening or closing time. The normal distance between the line connecting known points and the accelerometer trace energy content is maximum at the inflection point, which corresponds to the opening or closing time. With this data, an ECU can be properly programmed to more accurately control an injector stroke, thereby improving engine performance.
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Pace Jeffrey B.
Warner Vernon R.
Wright Danny O.
Dombroske George M.
Noori Max H.
Siemens Automotive Corporation
Wells Russel C.
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