Trailer hold assist during standstill
US9321440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2011 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2201/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle comprises a speed-sensing device outputting a signal indicating a velocity of the vehicle, a brake system outputting a signal for indicating when the brake system is being commanded to a brake torque providing state, and a trailer brake controller coupled to the speed-sensing device and the brake system. The trailer brake controller utilizes the signal of the speed-sensing device to determine when the vehicle is in a zero-velocity state and utilizes the signal of the brake system to determine when the brake system is being commanded to the brake torque providing state. The trailer brake controller transitions a brake-actuating output signal thereof from a speed-dependent zero-velocity output signal value to a trailer hold zero-velocity output signal value greater than the speed-dependent zero-velocity output signal value when it is determined that the brake system is in the brake torque providing state while the vehicle is in the zero-velocity state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.