Device for estimating drift amount of lateral acceleration sensor, device for correcting output of lateral acceleration sensor, and device for estimating road surface friction state
US7366598B2 · kind B2 · utility
10Cited by
12References
13Claims
0Family size
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Key dates
| Filing date | Dec 29, 2003 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Oct 28, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2250/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An SAT estimating section estimates self-aligning torque (SAT) on the basis of a steering torque, which is detected by a steering torque detecting section, and an assist torque, which is detected by an assist torque detecting section. An SAT model value computing section computes an SAT model value by using an integrated slip angle αI. An SAT ratio/drift amount computing section computes, by on-line identification, a ratio (SAT ratio) of the SAT to the SAT model value, and a drift amount of a lateral acceleration sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.