Invention Grant
- Patent Title: Control apparatus and control method of continuously variable transmission, program for realizing that method, and recording medium on which that program is recorded
- Patent Title (中): 无级变速器的控制装置和控制方法，用于实现该方法的程序以及记录该程序的记录介质
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Application No.: US12225687Application Date: 2007-10-02
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Publication No.: US08195369B2Publication Date: 2012-06-05
- Inventor: Daisuke Inoue , Tadashi Tamura
- Applicant: Daisuke Inoue , Tadashi Tamura
- Applicant Address: JP Toyota
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota
- Agency: Oliff & Berridge, PLC
- Priority: JP2006-273151 20061004
- International Application: PCT/IB2007/002894 WO 20071002
- International Announcement: WO2008/041093 WO 20080410
- Main IPC: G06F17/00
- IPC: G06F17/00 ; F16H61/00
Abstract:
An ECU executes a program that includes a step of increasing belt squeezing pressure to a value P (ON) greater than a normal value P (OFF) that is set as the belt squeezing pressure when a footbrake switch is off, when the footbrake switch is on and the time elapsed after the footbrake switch was turned on is less than a threshold value T (0); and a step of gradually reducing the belt squeezing pressure to the normal value P (OFF) when the time elapsed after the footbrake switch was turned on is equal to or greater than the threshold value. As a result, a decrease in fuel efficiency of a vehicle in which a continuously variable transmission is mounted, as well as a reduction in the durability of a belt of this continuously variable transmission, can be reduced.
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