Rotation angle detection device for vehicle brake
US10837980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2018 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Jan 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D3/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotation angle detection device for a vehicle brake includes: a housing accommodating a magnetic detection unit; a rotation member supported to be rotatable relative to the housing; and a magnet held by the rotation member and rotating integrally with the rotation member, in which the magnetic detection unit includes a stroke detection unit and a switch detection unit, the stroke detection unit detects a rotation angle by which the rotation member has rotated from a reference position based on a magnetic force of the magnet, the switch detection unit detects that the rotation member has rotated from the reference position by a predetermined angle or more, and at least a portion of the stroke detection unit is disposed at a position where the portion overlaps with the magnet in an axial direction of a rotational axis of the rotation member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.