Invention Grant
- Patent Title: Braking control device for vehicle
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Application No.: US16325344Application Date: 2017-08-30
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Publication No.: US11407391B2Publication Date: 2022-08-09
- Inventor: Hikaru Kawamura , Shun Tsukamoto
- Applicant: ADVICS CO., LTD.
- Applicant Address: JP Kariya
- Assignee: ADVICS CO., LTD.
- Current Assignee: ADVICS CO., LTD.
- Current Assignee Address: JP Kariya
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JPJP2016-167761 20160830,JPJP2016-186641 20160926
- International Application: PCT/JP2017/031089 WO 20170830
- International Announcement: WO2018/043536 WO 20180308
- Main IPC: B60T8/1761
- IPC: B60T8/1761 ; B60T8/40 ; B60T13/74 ; H02M7/48 ; B60T8/17 ; B60T8/172

Abstract:
The braking control device generates braking force by operating an electric motor to press a friction member against a wheel-fixed rotary member. The braking control device includes: a wheel speed sensor detecting wheel speed; a rotation angle sensor detecting a motor rotation angle; a drive circuit driving the motor; and a controller controlling the drive circuit. The controller sets a current limit circle within d-axis/q-axis current characteristics of the motor based on specifications of the drive circuit, calculates a voltage limit circle within the d-axis/q-axis current characteristics based on the rotation angle, executes slip suppression control for reducing the degree of wheel slip based on the wheel speed, calculates d-axis and q-axis target current values based on intersection points of the current limit circle and the voltage limit circle when execution of slip suppression control begins, and controls the drive circuit based on the d-axis and q-axis target current values.
Public/Granted literature
- US20190202422A1 BRAKING CONTROL DEVICE FOR VEHICLE Public/Granted day:2019-07-04
Information query
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