Method of determining the lateral velocity of a vehicle during abnormal driving situations
US8862333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2010 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Nov 29, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W40/109
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method to determine a vehicle's lateral velocity during abnormal driving situations of a vehicle during controlled side-impact or rollover crash tests that involve the pulling of a vehicle sideways into an object. A high-resolution, low-range, lateral accelerometer is integrated to determine the lateral velocity. Furthermore, is a method to initiate the integration of the acceleration signal and a method to stop and reset the integration. The method recognizes special conditions associated with abnormal driving situations like controlled crash tests, and therefore will not be active during normal operating conditions. The method also includes a means to handle offset tolerances associated with accelerometers by finding the sensor's zero-g point while the vehicle is at rest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.