Invention Grant
- Patent Title: Abnormality determination device and method of longitudinal acceleration sensor
- Patent Title (中): 纵向加速度传感器异常判定装置及方法
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Application No.: US13637407Application Date: 2011-04-14
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Publication No.: US08831819B2Publication Date: 2014-09-09
- Inventor: Takashi Saito , Kaiji Itabashi
- Applicant: Takashi Saito , Kaiji Itabashi
- Applicant Address: JP Toyota-shi, Aich-ken
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi, Aich-ken
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- International Application: PCT/JP2011/059262 WO 20110414
- International Announcement: WO2012/140763 WO 20121018
- Main IPC: G07C5/00
- IPC: G07C5/00 ; B60W50/02 ; B60T8/88 ; G01P21/00 ; G01P7/00 ; B60W40/107

Abstract:
The running control device and method according to the present invention are those for determining abnormality of a longitudinal acceleration sensor which detects vehicular longitudinal acceleration that is used in a vehicle running control. An integrated value of a vehicular longitudinal acceleration that is detected by the longitudinal acceleration sensor is calculated, and determination whether or not the longitudinal acceleration sensor is abnormal is conducted on the basis of the integrated value and a vehicle speed based on vehicle wheel speeds. The calculation of the integrated value is initiated when a situation where the vehicle speed based on vehicle wheel speeds is zero and the increasing rate of the detected vehicular longitudinal acceleration is equal to or larger than a reference value for the increasing rate continues for a period which is equal to or larger than a reference value for the initiation of calculation.
Public/Granted literature
- US20140046532A1 ABNORMALITY DETERMINATION DEVICE AND METHOD OF LONGITUDINAL ACCELERATION SENSOR Public/Granted day:2014-02-13
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