Title:
ELECTRIC BRAKE DEVICE, ELECTRIC BRAKE CONTROL METHOD, AND CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/189397
Kind Code:
A1
Abstract:
A parking brake control device controls an electric motor by means of "estimated thrust (stroke)" obtained from a "stroke" corresponding to an electric motor rotation rate obtained on the basis of a current value and a voltage value with which the electric motor is energized and a "pad stiffness learning value (more specifically, pad stiffness after considering temperature characteristics)," which is a factor related to stiffness including brake pad stiffness, when the current value changes along with a change in the voltage value applied to the electric motor.
Inventors:
TADA HIROHITO (JP)
KIKAWA MASAYUKI (JP)
MATSUZAKI NORIKAZU (JP)
SAOTOME SUGURU (JP)
KIKAWA MASAYUKI (JP)
MATSUZAKI NORIKAZU (JP)
SAOTOME SUGURU (JP)
Application Number:
PCT/JP2023/009214
Publication Date:
October 05, 2023
Filing Date:
March 10, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
B60T13/74; B60T8/00
Domestic Patent References:
| WO2021246124A1 | 2021-12-09 |
Foreign References:
| JP2021020507A | 2021-02-18 | |||
| JP2019130939A | 2019-08-08 | |||
| JP2012159134A | 2012-08-23 | |||
| US20210024044A1 | 2021-01-28 |
Attorney, Agent or Firm:
YAMAMOTO, Osamu et al. (JP)
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