Brake control arrangement for composite vehicles
US6012781A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 20, 1998 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Jan 20, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/66
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake control arrangement for a composite vehicle including a tractor and at least one trailer possessing an electronic brake control and a mechanical brake control, each producing a fluid pressure supplied to the brakes of the trailer based on brake demand for braking of the vehicle. A trailer control valve in the tractor receives the two pressurized fluids and selects the greater of the two fluid pressures, routing the fluid having the greater pressure to the trailer brake. A stop valve is connected between the mechanical brake control and the trailer control valve and is controlled by a monitoring device of the electronic brake control such that, during a normal mode of operation of the electronic brake control, the stop valve prevents the flow of fluid from the mechanical brake control to the trailer control valve and during an error mode the stop valve permits the flow of fluid from the mechanical brake control to the trailer control valve. The electronic brake control modifies the fluid pressure as a function of the weight of the trailer or as a function of the coupling force between the tractor and the trailer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.