Invention Grant
- Patent Title: Control system for four-wheel drive vehicle
- Patent Title (中): 四轮驱动车辆控制系统
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Application No.: US14540633Application Date: 2014-11-13
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Publication No.: US09272700B2Publication Date: 2016-03-01
- Inventor: Hideki Tamoto , Masayuki Arai , Yoshiro Obayashi , Kunihiro Iwatsuki
- Applicant: Toyota Jidosha Kabushiki Kaisha
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Dinsmore & Shohl LLP
- Priority: JP2013-239372 20131119
- Main IPC: B60W10/119
- IPC: B60W10/119 ; B60W10/10

Abstract:
A disconnect mechanism is configured to disconnect a predetermined rotating element from an engine and an auxiliary drive wheels while the vehicle is traveling in a two-wheel drive mode. The predetermined rotating element is configured to transmit power to the auxiliary drive wheels while the vehicle is traveling in a four-wheel drive mode. An electronic control unit is configured to: execute shift control when a shift condition of an automatic transmission is satisfied; selectively engage or release the disconnect mechanism based on a traveling state of the vehicle and a driver's predetermined operation; and control at least one of the automatic transmission or the disconnect mechanism such that a shift period based on the shift condition of the automatic transmission and an engagement-release period of the disconnect mechanism at least partially overlap with each other.
Public/Granted literature
- US20150142280A1 CONTROL SYSTEM FOR FOUR-WHEEL DRIVE VEHICLE Public/Granted day:2015-05-21
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