发明名称 Control device and control method for continuously variable transmission
摘要 <p>During Low return control, in which a speed ratio determined by a contact radius of a V-belt (4) with a non-rotating primary pulley (2) and a non-rotating secondary pulley (3) is shifted toward lowest speed ratio while the vehicle is stationary, an estimated speed ratio (ic) is calculated on the basis of a secondary pulley pressure (Psec). When a start request is issued to the vehicle while Low return control is underway, a primary pulley pressure (Ppri) and the secondary pulley pressure (Psec) are controlled on the basis of the estimated speed ratio (ic).</p>
申请公布号 EP1930632(A2) 申请公布日期 2008.06.11
申请号 EP20070022432 申请日期 2007.11.19
申请人 JATCO LTD 发明人 IWASA, HIROKI;KODAMA, YOSHIHISA
分类号 F16H61/662 主分类号 F16H61/662
代理机构 代理人
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