Vehicle derailing prevention device
US7688186B2 · kind B2 · utility
3Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2006 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jan 27, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W30/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle speed V is read (step S1), V is compared with a first threshold Vth1 (step S2), and, when V is not less than Vth1, a warning torque is set smaller with increase in V (step S3). When V is less than Vth1, V is further compared with a second threshold Vth2 (step S4), and when V is less than Vth2, the warning torque is set approximately in proportion to the vehicle speed (step S5); when V is not less than Vth2 and is less than Vth1, the warning torque is set at a predetermined constant value (step S6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.