Title:
BRAKING CONTROL DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/043536
Kind Code:
A1
Abstract:
The braking control device generates a braking force by pressing a friction member against a rotary member fixed to a wheel by using an electric motor. The braking control device is equipped with: a wheel speed sensor for detecting a wheel speed; a rotation angle sensor for detecting a rotation angle of the electric motor; a drive circuit for driving the electric motor; and a controller for controlling the drive circuit. The controller sets a current limit circle within d-axis/q-axis current characteristics of the electric motor on the basis of the specifications of the drive circuit, calculates a voltage limit circle within the d-axis/q-axis current characteristics on the basis of the rotation angle, executes slip suppression control for reducing the degree of wheel slip on the basis of the wheel speed, calculates d-axis and q-axis target current values on the basis of intersection points of the current limit circle and the voltage limit circle when execution of slip suppression control begins, and controls the drive circuit on the basis of the d-axis and q-axis target current values.
Inventors:
KAWAMURA HIKARU (JP)
TSUKAMOTO SHUN (JP)
TSUKAMOTO SHUN (JP)
Application Number:
PCT/JP2017/031089
Publication Date:
March 08, 2018
Filing Date:
August 30, 2017
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
B60T13/74; B60T8/17; B60T8/40; B60T13/138; H02M7/48
Foreign References:
| JP2008184057A | 2008-08-14 | |||
| JP2009247147A | 2009-10-22 |
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