Automatic calibration apparatus for an automotive control system
US4623976A · kind A · utility
16Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1984 |
| Grant date | Nov 18, 1986 |
| Priority date | — |
| Expiry date | Mar 16, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/2432
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic calibration selection for an automotive control system allows the use of one basic electronic control unit (20) for a family of motor vehicles. In each motor vehicle, a unique valued resistor (10) is located in or adjacent to the wireharness and near the electronic control unit connector (12). This resistor (10) provides an input to a voltage divider network to select a voltage value representing the particular control parameters for the vehicle. The voltage operates to address (24) a read only memory (22) to place the proper calibration constants in the electronic control unit (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.