Method and apparatus for determining the air charge mass for an internal combustion engine
US6561016B1 · kind B1 · utility
22Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jun 15, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/703
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus are provided for calculating the air charge mass for an engine as a function of four measured parameters. These parameters include the engine speed measured by a tachometer, a throttle position measured by a throttle position sensor, manifold air temperature, and barometric pressure. Without the need for a mass air flow sensor or a manifold absolute pressure sensor, the present invention provides a system for quickly and accurately calculating the air charge mass for the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.