Banked curve detection using vertical and lateral acceleration
US9168950B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2014 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Sep 19, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2520/125
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A banked curve detection system determines the presence of a vehicle on a banked curve by sensing a vertical acceleration and a lateral acceleration of a vehicle. A banked curve is determined when the vertical acceleration and lateral acceleration are each greater than previously sensed vertical and lateral accelerations, the lateral acceleration is less than an expected reference lateral acceleration value, and the vertical acceleration is greater than gravity. The reference lateral acceleration value is based on yaw rate, steering angle, and wheel speed. When the acceleration conditions are met, the electronic stability control adjusts the parameters due to the vehicle being driven on a banked curve. Once the acceleration condition is no longer valid, the electronic stability control returns to normal operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.