Automatic emergency braking using a time-to-collision threshold based on target acceleration
US11724673B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2021 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Aug 27, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2250/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Techniques and systems are described that enable automatic emergency braking (AEB) using a time-to-collision (TTC) threshold that is based on target acceleration. The TTC may be a combination of a first TTC sub-threshold and a second TTC sub-threshold. The first TTC threshold may be based on a vehicle velocity of a host vehicle and a relative velocity between the host vehicle and a target object. The second TTC sub-threshold may be based on a target acceleration of the target object and a distance between the host vehicle and the target object. By utilizing the target acceleration in the TTC threshold determination, the techniques and systems described herein enable AEB to work as planned to prevent a collision between a vehicle and a target, in a wider variety of environments and situations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.