Invention Grant
- Patent Title: Vehicle travel control device
- Patent Title (中): 车辆行驶控制装置
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Application No.: US12738092Application Date: 2008-11-19
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Publication No.: US08565976B2Publication Date: 2013-10-22
- Inventor: Takahiro Kojo , Theerawat Limpibunterng
- Applicant: Takahiro Kojo , Theerawat Limpibunterng
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-299488 20071119
- International Application: PCT/JP2008/071483 WO 20081119
- International Announcement: WO2009/066793 WO 20090528
- Main IPC: B62D6/00
- IPC: B62D6/00

Abstract:
An object of the present invention is to cover a drop in turning responsiveness of a vehicle to a driver's steering operation caused by a limit on the operating speed of a steerable wheel turning unit by a turn assist yaw moment independent of turn lateral forces of steerable wheels to thereby prevent the drop in turning responsiveness of the vehicle when the operating speed of the steerable wheel turning unit is limited. A vehicle travel control device comprises a steerable wheel turning unit capable of turning steerable wheels to steer independently of steering of a driver and a braking unit as a turn assist yaw moment generating means capable of generating a turn assist yaw moment independently of turn lateral forces of the steerable wheels. When a predetermined controlled variable limiting condition is established and the controlled variable of the steerable wheel turning unit is limited, the influence of limiting the controlled variable of the steerable wheel turning unit on the turn yaw moment of the vehicle can be reduced by changing braking forces of individual wheels and generating a yaw moment by differences in braking force between left and right wheels.
Public/Granted literature
- US20100228444A1 VEHICLE TRAVEL CONTROL DEVICE Public/Granted day:2010-09-09
Information query
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