Invention Grant
- Patent Title: Turning characteristic estimating device for vehicle
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Application No.: US14380614Application Date: 2012-02-24
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Publication No.: US09604636B2Publication Date: 2017-03-28
- Inventor: Takahiro Yokota
- Applicant: Takahiro Yokota
- Applicant Address: JP Toyota-shi
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- International Application: PCT/JP2012/054657 WO 20120224
- International Announcement: WO2013/125047 WO 20130829
- Main IPC: B60W30/02
- IPC: B60W30/02 ; B60W30/045 ; B60W40/12 ; B60W40/114 ; B60T8/1755 ; B60W30/18
Abstract:
A turning-characteristic estimating unit of an ECU estimates a stability factor and a steering-response time constant coefficient that are parameter values related to turning characteristics of a vehicle. A standard yaw rate of the vehicle is calculated using the estimation values of the stability factor and the steering-response time constant coefficient estimated by the turning-characteristic estimating unit. A validity determining unit of the ECU determines the validity of the estimation values based on the standard yaw rate and an actual yaw rate of the vehicle. This allows improving the estimation accuracy of the stability factor and the steering-response time constant coefficient.
Public/Granted literature
- US20150291156A1 TURNING CHARACTERISTIC ESTIMATING DEVICE FOR VEHICLE Public/Granted day:2015-10-15
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