Boots – shoes – and leggings
Patent
1990-02-22
1991-10-15
Lall, Parshotam S.
Boots, shoes, and leggings
36443108, 123406, 123609, 123644, F02P 500, F02P 900, G06F 1548, G06G 770
Patent
active
050580213
ABSTRACT:
A distributorless ignition system is shown having a timing controller that is responsive to one cylinder of the engine reaching top dead center for predicting the times at which one or more subsequent cylinders in the firing order should enter dwell and fire based upon the current engine speed, current battery voltage and the time interval between one cylinder reaching top dead center and the preceding cylinder reaching top dead center. At low operating speeds the controller plans for the firing of a cylinder utilizing triple precision calculations. At midrange speeds and high speeds, however, the controller utilizes double precision calculatons. At very high speeds, the controller of the present invention plans the firing of two or more cylinders at the same time forcing the cylinders into overlapping dwell. Knock is reduced while optimizing the amount of power obtained from each cylinder by utilizing various knock algorithms depending upon the current speed of the engine when the potential knock is detected.
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patent: 4502454 (1985-03-01), Hamai et al.
patent: 4519038 (1985-05-01), Matsui et al.
patent: 4676212 (1987-06-01), Kashimura et al.
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patent: 4893244 (1990-01-01), Tang et al.
patent: 4933861 (1990-06-01), Allen et al.
Lall Parshotam S.
Pipala E. J.
Prestolite Electric Incorporated
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