Invention Grant
- Patent Title: Shifting control system
- Patent Title (中): 换档控制系统
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Application No.: US12272853Application Date: 2008-11-18
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Publication No.: US08216110B2Publication Date: 2012-07-10
- Inventor: Shusaku Katakura , Sadamu Fujiwara
- Applicant: Shusaku Katakura , Sadamu Fujiwara
- Applicant Address: JP Yokohama
- Assignee: Nissan Motor Co., Ltd.
- Current Assignee: Nissan Motor Co., Ltd.
- Current Assignee Address: JP Yokohama
- Agency: Global IP Counselors, LLP
- Priority: JP2007-314396 20071205; JP2008-180852 20080711
- Main IPC: B60W10/02
- IPC: B60W10/02 ; B60W10/10

Abstract:
A shifting control system has two gear shift stage groups, two clutches, a clutch release detection section, a pre-shift controller, a clutch oil level detection section and a pre-shift inhibiting section. The clutches are alternately engaged to selectively transmit power from an engine to a wheel. The clutch release detection section detects a release-side clutch which corresponds to the clutch that is in a released state. The pre-shift controller operates a meshing mechanism of the gear shift stage group corresponding to the release-side clutch, so as to undergo pre-shifting when the other clutch is engaged as an engage-side clutch. The clutch oil level detection section determines whether an oil level in the release-side clutch is equal to or greater than a preset oil level. The pre-shift inhibiting section inhibits pre-shifting while the oil level in the release-side clutch is equal to or greater than a preset oil level.
Public/Granted literature
- US20090145253A1 SHIFTING CONTROL SYSTEM Public/Granted day:2009-06-11
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