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Inventor:
Dona; Alan R.
Address:
Huntington Woods, MI
No. of patents:
5
Patents:












Patent Number Title Of Patent Date Issued
5617836 Engine control system for producing and responding to an index of maturity of adaptive learing April 8, 1997
An adaptive closed loop fuel control system generates an index of maturity value which indicates the extent to which parameters which characterize an individual engine have been learned and stored for future use in a non-volatile memory. A timer produces the index of maturity value by
5609126 Variable camshaft timing system with altitude compensation March 11, 1997
An electronic engine controller operates to control the phase angle of a variable position camshaft. The engine controller receives signals indicative of engine coolant temperature, aircharge temperature, throttle position, engine speed and camshaft position, and generates a camshaft
5540202 Ignition timing control system for varying cold start spark advance during adaptive learning July 30, 1996
An electronic ignition timing system which cooperates with an adaptive closed loop fuel control system to provide more rapid heating of an exhaust catalyst by retarding the ignition tinning during colds starts only after an index of maturity value has been generated to indicate that
5497745 Engine control for enhanced catalyst warm up while maintaining manifold vacuum March 12, 1996
An engine controller (12) controls an ignition system (88) and bypass throttle valve (96). An ignition timing signal is set to an initial value as a function of engine (10) operating parameters. The timing signal is retarded during cold operation to rapidly warm a catalyst converter (20)
5492094 Engine control system for maintaining idle speed February 20, 1996
An engine controller (12) controls engine idle speed via control of a bypass throttle valve (96) and an ignition timing system (88). The ignition system (88) also provides a retard in ignition timing during cold operation to rapidly warm a catalytic converter (20) coupled to the engine










 
 
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