Lateral and longitudinal velocity determination for an automotive vehicle
US7451033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Nov 18, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2250/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system (18) for controlling a safety system (44) of a vehicle (10) is disclosed herein. The system includes a longitudinal acceleration sensor (36), a vehicle or wheel speed sensor(s) (20), a lateral acceleration sensor (32), a yaw rate sensor (28), and a controller (26). The controller determines a stability index and provides a first observer that determines a reference longitudinal velocity in response to the sensors. The controller determines a reference lateral velocity in response to the sensors. The controller provides a second observer that determines a second longitudinal velocity in response to the sensors and a first adjustment based on the reference longitudinal velocity. The controller determines a second lateral velocity in response to the sensors and a second adjustment based on the reference lateral velocity. The controller determines an output lateral velocity and an output longitudinal velocity in response to the first and second observers and the stability index and accordingly controls the safety system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.