发明申请
- 专利标题： SPEED RATIO CHANGE CONTROL DEVICE AND METHOD FOR BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION
- 专利标题（中）： 速度比变更控制装置及带式连续可变传动方法
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申请号： US11953912申请日： 2007-12-11
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公开(公告)号： US20080146409A1公开(公告)日： 2008-06-19
- 发明人: Midori YAMAGUCHI , Fumito Shinohara , Yoshihisa Kodama
- 申请人： Midori YAMAGUCHI , Fumito Shinohara , Yoshihisa Kodama
- 专利权人： JATCO Ltd
- 当前专利权人： JATCO Ltd
- 优先权： JP2006-337966 20061215
- 主分类号： F16H61/662
- IPC分类号： F16H61/662
摘要：
This invention is a speed ratio change control device for a belt type continuously variable transmission that a maximum thrust that can be generated by the primary pulley is calculated on the basis of an upper limit value of the line pressure (S3), an upper limit value of a shift speed is calculated on the basis of the maximum thrust (S5), and the target speed ratio is set on the basis of the upper limit value of the shift speed (S9).