Boots – shoes – and leggings
Patent
1989-10-26
1992-02-25
Lall, Parshotham S.
Boots, shoes, and leggings
36443104, 123480, G06F 1520
Patent
active
050918583
ABSTRACT:
An engine fuel delivery control system includes an engine having at least one fuel injector fuel injector responsive to electronic control signals for delivering fuel to the engine cylinders and a plurality of sensor for supplying electrical sensor signals as various functions of engine operating conditions. An electronic engine control unit includes an electronic memory storing engine control parameters in a variety of look-up tables, a microprocessor-based controller for periodically addressing the memory tables and obtaining required control parameters as a function of sensor signal inputs, and circuitry for supplying control signals to the injectors as a predetermined function of the control parameters obtained from the look-up tables. Apparatus for selectively varying the control parameters in the look-up tables includes facility for up-loading selected tables from the engine control unit memory, monitoring engine operation as reflected by addressing of the parameter tables in real time, and selectively initiating a programming mode of operation. In such programming mode of operation, addressing of the control tables is inhibited in the electronic control unit, and the control parameters obtained from the tables immediately prior to onset of the programming mode of operation are employed to supply control signals to the injectors during the programming mode of operation. In this way, engine operation continues uninterrupted during the programming mode of operation.
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Digital Fuel Injection
Lall Parshotham S.
Trans V. N.
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