Easy method for measuring brake mean effective pressure in a running vehicle
US6571616B1 · kind B1 · utility
3Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | May 17, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/501
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method for easily measuring a brake mean effective pressure of a running vehicle. An air flow sensor, a &lgr; sensor and a data collecting apparatus are mounted to the vehicle. A running speed and engine speed from the vehicle while actually running on a road surface, and output of the air flow sensor an the &lgr; sensor are inputted to the data collecting apparatus. Specific fuel consumption is obtained from an intake air amount and ratio of excessive air in exhaust gas. Output of an engine is obtained from a relation between the specific fuel consumption and the engine speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.