Method and apparatus to control vehicle deceleration during adaptive cruise control
US10427681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Apr 26, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2754/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A controller for a host vehicle having adaptive cruise control comprises control logic that determines an actual time gap behind a detected target object and transmits a deceleration message having a deceleration value in response to the actual time gap being less than a predetermined minimum time gap. The control logic receives a torque message from a vehicle retarder indicating that the vehicle retarder is at a limit. If the actual time gap is less than the predetermined minimum time gap, the control logic transmits a transmission control message requesting the transmission to shift to a lower gear. The control logic transmits another deceleration message if the actual time gap is still less than the predetermined minimum time gap, wherein at least one of an associated transmission and an associated braking system respond to decelerate the host vehicle in response to the transmission control message and deceleration messages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.