Invention Grant
- Patent Title: Vehicle control device and vehicle control method
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Application No.: US16626366Application Date: 2018-06-26
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Publication No.: US11022190B2Publication Date: 2021-06-01
- Inventor: Keisuke Ichikawa , Tomoaki Kabe , Kosuke Abe
- Applicant: JATCO Ltd , NISSAN MOTOR CO., LTD.
- Applicant Address: JP Fuji; JP Yokohama
- Assignee: JATCO Ltd,NISSAN MOTOR CO., LTD.
- Current Assignee: JATCO Ltd,NISSAN MOTOR CO., LTD.
- Current Assignee Address: JP Fuji; JP Yokohama
- Agency: Foley & Lardner LLP
- Priority: JPJP2017-126471 20170628
- International Application: PCT/JP2018/024111 WO 20180626
- International Announcement: WO2019/004166 WO 20190103
- Main IPC: F16H45/02
- IPC: F16H45/02 ; F16D48/06 ; F16H9/18 ; F16H61/14

Abstract:
A vehicle control device for a vehicle with a drive source and an automatic transmission including a friction engaging element for transmitting a driving force of the drive source to drive wheels by being engaged by a hydraulic pressure, wherein the vehicle control device is configured to perform an abnormality diagnosis of a solenoid valve for adjusting a hydraulic pressure to be supplied to the friction engaging element on the basis of a slip amount of the friction engaging element, and prohibit the abnormality diagnosis of the solenoid valve if a hydraulic pressure upstream of the solenoid valve is below a predetermined hydraulic pressure at which the friction engaging element is engaged, the hydraulic pressure upstream of the solenoid being a source hydraulic pressure to be adjusted by the solenoid valve.
Information query