Boots – shoes – and leggings
Patent
1990-01-08
1992-03-03
Lall, Parshotam S.
Boots, shoes, and leggings
74867, 74866, B60K 4118
Patent
active
050937898
ABSTRACT:
An oil pressure control system for an automatic transmission employed in a vehicle comprises a device for producing line pressure, a device for supplying engaging friction elements in the automatic transmission with operating oil pressure obtained from the line pressure, a device for determining a pressure control variable based on operating condition of an engine with which the automatic transmission is coupled, a device for determining a supplemental control variable based on a duration of speed change or a state of speed change in the automatic transmission, a device for revising the supplemental control variable in accordance with the operating condition of the engine to produce a revised supplemental control variable, a device for revising the pressure control variable in accordance with the revised supplemental control variable to produce a revised pressure control variable, and a control device operative to control the line pressure in accordance with the revised pressure control variable when a specific speed change operation is performed in the automatic transmission.
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Fujiwara Takuji
Ishii Kozo
Takemoto Kazuo
Yoshimura Hiroshi
Lall Parshotam S.
Mazda Motor Corporation
Trans V.
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