Title:
ELECTRIC BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/243266
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an electric brake device that can be controlled at low cost and with high precision. The present invention comprises a motor control device 11 that controls rotation of an electric motor 8 for increasing the pressure of brake pads 5a, 5b. The motor control device 11 is provided with: a motor position/current relationship creation unit 43 that acquires the relationship between the rotary position of the electric motor 8 and the current of the electric motor 8; a braking torque estimation unit 41 that estimates braking torque, which increases the pressure of the brake pads 5a, 5b, from the rotary position of the electric motor 8; and a braking torque/position relationship creation unit 42 that acquires the relationship between the rotary position of the electric motor 8 and the braking torque on the basis of information from the motor position/current relationship creation unit 43 and the braking torque estimation unit 41. The rotation of the electric motor 8 is controlled on the basis of information from the braking torque/position relationship creation unit 42.
Inventors:
SETO SHINJI (JP)
GOTO DAISUKE (JP)
GOTO DAISUKE (JP)
Application Number:
PCT/JP2023/017701
Publication Date:
December 21, 2023
Filing Date:
May 11, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
B60T8/171; B60T13/74; F16D65/16; F16D121/24; F16D125/20
Foreign References:
| JP2011213201A | 2011-10-27 | |||
| JP2008184057A | 2008-08-14 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
Download PDF: