发明名称 SPEED CHANGE CONTROL DEVICE OF AUTOMATIC TRANSMISSION FOR VEHICLE
摘要 PROBLEM TO BE SOLVED: To reduce generation of a gear tooth hitting sound of a large level by prohibiting a preselect means from performing preselect when judged that a present operation condition is an operation condition of generating a gear tooth hitting sound of a large level when the preselect is performed. SOLUTION: A present gear stage GN, throttle opening TA and output rotating speed NT of a transmission are read in (S501). Next, whether or not it is a third speed stage is judged. As a result, in the case of NO, preselect is performed. On the other hand, in the case of YES (S503), whether or not a present operation condition is put in an area to perform preselect is judged (S509). As a result, in the case of YES, a second sleeve actuator is actuated (S510) so that a second sleeve 52 connects a second speed clutch gear G2 and a second hub to each other. In the case of NO (S509), a first sleeve 51 is actuated (S511) so as to be in an intermediate position, and is returned (S512).
申请公布号 JPH09196164(A) 申请公布日期 1997.07.29
申请号 JP19960009983 申请日期 1996.01.24
申请人 TOYOTA MOTOR CORP 发明人 MURATA KIYOHITO;KAKISAKA NAOTAKA
分类号 F16H61/18;F16H61/16;F16H61/688;(IPC1-7):F16H61/16 主分类号 F16H61/18
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