Hydraulic braking system wherein electrically controllable assisting drive force is applied to master cylinder piston upon brake pedal operation
US6945610B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1999 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Apr 7, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/686
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulically operated braking system including a master cylinder (12; 300: 500; 600) having a pressurizing piston (34; 322, 324; 504, 506) operatively connected to a brake operating member (10), to pressurize a fluid in a pressurizing chamber (30, 32; 302, 304; 508, 510), so that a brake cylinder (22–28), is actuated by the pressurized fluid, and an assisting device (81; 260–272; 109; 538; 612) for applying to the pressurizing piston an assisting drive force which is other than a primary drive force to be applied to the pressurizing piston on the basis of a brake operating force acting on the brake operating member. The assisting device is electrically controllable to control the assisting drive force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.