发明授权
- 专利标题： System and method of controlling V-belt type continuously variable transmission
- 专利标题（中）： 控制V型皮带式无级变速器的系统及方法
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申请号： US10673919申请日： 2003-09-30
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公开(公告)号： US07192371B2公开(公告)日： 2007-03-20
- 发明人: Masahiro Yamamoto , Yoshihisa Kodama , Shigeki Shimanaka , Katsumi Doihara
- 申请人： Masahiro Yamamoto , Yoshihisa Kodama , Shigeki Shimanaka , Katsumi Doihara
- 申请人地址： JP Fuji
- 专利权人： Jatco Ltd
- 当前专利权人： Jatco Ltd
- 当前专利权人地址： JP Fuji
- 代理机构： Foley & Lardner LLP
- 优先权： JP2002-288396 20021001
- 主分类号： F16H61/00
- IPC分类号： F16H61/00 ; F16H61/664
摘要：
A system for controlling a V-belt type CVT is constructed to change a first position of a step motor to a second position of the step motor corresponding to a second target shift ratio if it is determined that the primary-pulley pressure fails to reach a predetermined value. The second target shift ratio is on the high-speed side with respect to a third position of the step motor corresponding to a third target shift ratio to be achieved if it is determined that the primary-pulley pressure reaches the predetermined value.
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