Wireless diagnostic system for characterizing a vehicle's exhaust emissions
US6604033B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Feb 1, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention features a method and apparatus for remotely characterizing a vehicle's emissions performance. The method features the steps of: i) generating data representative of the vehicle's emissions performance with at least one microcontroller disposed within the vehicle; ii) transferring the data through an OBD, OBD-II or equivalent electrical connector to a data collector/router that includes a microprocessor and an electrically connected wireless transmitter; iii) transmitting a data packet representing the data with the wireless transmitter over an airlink to a wireless communications system and then to a host computer; and iv) analyzing the data packet with the host computer to characterize the vehicle's emissions performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.