发明授权
- 专利标题： Oil pump control device for automatic transmission and control method of the same
- 专利标题（中）： 油泵控制装置用于自动变速控制方式相同
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申请号： US10156938申请日： 2002-05-30
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公开(公告)号： US06716138B2公开(公告)日： 2004-04-06
- 发明人: Tooru Matsubara , Yasuo Hojo , Hideo Tomomatsu , Yoshikazu Tanaka , Tadasu Tomohiro , Katsumi Nakatani
- 申请人： Tooru Matsubara , Yasuo Hojo , Hideo Tomomatsu , Yoshikazu Tanaka , Tadasu Tomohiro , Katsumi Nakatani
- 优先权： JP2001-180657 20010614
- 主分类号： B60K4102
- IPC分类号： B60K4102
摘要：
A condition for driving an electric oil pump is set. A turbine speed or an input speed of an automatic transmission is measured. A correction amount for a hydraulic pressure is calculated on the basis of the turbine speed obtained by reference to a relation between the turbine speed and hydraulic pressure, and a correction amount for a drive duty ratio of the electric oil pump which is required for generation of the corrected hydraulic pressure is calculated. The procedure is resumed after the procedure has been performed. The condition for driving the electric oil pump is updated on the basis of the correction amount for the drive duty ratio calculated.
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