Back-up braking in vehicle braking systems
US6598943B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Nov 1, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/18
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle braking system comprising an electro-hydraulic braking system of the type which operates normally in a brake-by-wire mode wherein hydraulic pressure is applied to braking devices at the vehicle wheels (18a-d) in proportion to the driver's braking demand as sensed electronically at a brake pedal (10), and which, if the brake-by-wire mode should fail, operates in a push-through mode wherein hydraulic pressure is applied to the braking devices at the vehicle wheels (18) by way of a master cylinder (34) coupled mechanically to the braked pedal (10), and an electric parking braking system for enabling the braking devices to be actuated for parking braking purposes. For supplementing the push-through braking provided by the electro-hydraulic braking system in the event that the brake-by-wire mode has failed, it is arranged that the operation of the brake pedal (10) by the driver also causes operation of the electric parking braking system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.