Vehicle brake system having plunger power source
US10730495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2018 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Dec 31, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/36
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include an elastomeric tubular torque coupler connected to a ball screw/nut anti-rotation member; and a clamped connection at an inner race of a motor bearing for securing the rotor to the ball screw/nut component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.