Speed limiter
US9085237B2 · kind B2 · utility
1Cited by
31References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2011 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | May 3, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N2300/306
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided is a speed limiter, wherein a vehicle speed is detected, and a speed limit displayed on a speed sign is detected based on an image captured by a front monitoring camera. A speed difference between the vehicle speed and the speed limit is calculated, and an accelerator sensitivity gain is set using the speed difference as a parameter. Then an accelerator opening degree is corrected with the accelerator sensitivity gain to obtain a pseudo accelerator opening degree. A target throttle opening degree is set based on the pseudo accelerator opening degree and an engine rpm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.