Foley & Lardner LLP
Hydraulic control device, control method of thereof, and automatic transmission
A hydraulic control circuit includes an oil pump for generating a hydraulic pressure by being rotated by power of a driving force source, a line pressure oil passage in which at least a line pressure generated by adjusting the hydraulic pressure generated by the oil pump is supplied, a driving force source stopping unit that stops the rotation of the driving force source, and a hydraulic pressure reduction suppressing unit that is provided in the line pressure oil passage and suppresses a reduction of the line pressure accompanying reverse rotation of the driving force source when the rotation of the driving force source is stopped by the driving force source stopping unit.
NISSAN MOTOR CO., LTD. JATCO LTD
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Naohiro Keichi Noritaka Shinichiro
Yamada Tatewaki Aoyama Watanabe