EBS tractor control line to trailer system to improve transmission timing for an air brake system
US11511716B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2019 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Oct 12, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/414
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake control signal amplification system that is designed to assist with the compliance to the FMVSS-121 Safety Standard for an air braked vehicle is described which comprises a trailer control module (TCM) that provides pneumatic signal to a trailer of the vehicle, a tractor protection valve (TPV) that protects a tractor air brake system in the event of a pneumatic disconnection from the trailer, and a pilot relay valve (PRV) coupled between the TCM and the TPV, wherein the PRV amplifies a control signal received from the TCM and delivers an amplified control signal to the to the TPV. The TPV delivers the amplified control signal to a control coupling for a trailer portion of a vehicle and delivers an air supply to a supply coupling for the trailer of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.