Tractor hydraulic brake circuit with ABS capability
US8974011B2 · kind B2 · utility
9Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2012 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Feb 23, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/686
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle brake system includes a pump, a sump, brake units and left and right manually operated brake valves. The brake system also includes, for each brake unit, a solenoid operated on-off valve having a first port connected to a pilot of one of the brake valves, a second port, a third port connected to one of the brake units, a solenoid and a spring which opposes the solenoid. The brake system also includes, for each brake unit, a solenoid operated proportional valve. Each proportional valve controls communication between the pump, the sump and the second port of a corresponding one of the on-off valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.