Disk brake apparatus
US9731693B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2013 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/741
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A disk brake apparatus includes a piston thrust mechanism disposed in a caliper and including a thrust member configured to thrust a piston by an electric motor, and a piston holding mechanism configured to hold the thrust piston. When the piston holding mechanism release the holding of the thrust piston, the controller acquires a hydraulic pressure supplied to the caliper. If the hydraulic pressure is a predetermined value or higher, the controller determines whether a thrust force generated by the electric motor is released based on a time period from issue of an instruction to release the holding of the piston and a start of driving of the electric motor. If the hydraulic pressure is lower than the predetermined value, the controller determines whether the thrust force generated by the electric motor is released based on a change status of a current for driving the electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.