Invention Grant
- Patent Title: Continuously variable transmission control device, continuously variable transmission, and vehicle equipped with the same
- Patent Title (中): 连续变速传动控制装置，无级变速传动装置及配备该变速器的车辆
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Application No.: US12202696Application Date: 2008-09-02
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Publication No.: US08494728B2Publication Date: 2013-07-23
- Inventor: Toshio Unno
- Applicant: Toshio Unno
- Applicant Address: JP Shizuoka
- Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee Address: JP Shizuoka
- Agency: Keating & Bennett, LLP
- Priority: JP2007-227787 20070903; JP2007-305326 20071127
- Main IPC: G06F7/00
- IPC: G06F7/00 ; F16H9/18 ; F16H55/54 ; F16H55/56 ; F16H9/10 ; F16H61/662 ; F16H61/26 ; B62D31/02 ; B62D61/02 ; B60K17/06 ; B60W10/00
Abstract:
A transmission 20 includes an input shaft 12, an output shaft 13, a primary sheave 23 that rotates together with the input shaft 12, a secondary sheave 24 that rotates together with the output shaft 13, and a belt 25 wound around both the primary sheave 23 and the secondary sheave 24. The transmission 20 includes a motor 22 that shifts a transmission ratio by driving a movable sheave 23a of the primary sheave 23. A control device (ECU 5) of the transmission 20 includes a secondary sheave rotation speed sensor 28 that detects rotation of the belt 25, and a control portion 55 of the ECU 5 performs a sheave position control (normal control of the transmission ratio) after rotation of the belt 25 is detected after starting.
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