Smart vehicle sensor
Various systems and methods are described for controlling operation of a motor vehicle based on a sensor. One example method comprises receiving sensed parameter data from the sensor, receiving calibration data from the sensor, and adjusting a vehicle operating parameter in response to the sensed parameter data and the calibration data.
1. A sensor, comprising:
an output responsive to a sensed parameter; and
a coded indication of a sensor light-off temperature response for the sensed parameter.
2. The sensor of claim 1 , where the sensor is an exhaust gas sensor, and where the coded indication of the sensor light-off temperature response includes sensor-specific data particular to, and selected specifically for, the sensor, the data stored in sensor electronics.
3. The sensor of claim 2 , where the exhaust gas sensor is a NO x sensor and the sensed parameter is a concentration of NO x , and where the sensor includes a heater.
4. The sensor of claim 2 , wherein the coded indication of the light-off temperature response is included in a second, separate output of the sensor.
5. The sensor of claim 2 , wherein the coded indication of the light-off temperature response is encoded in the output.
6. The sensor of claim 5 , wherein the coded indication of the light-off temperature response is generated by a selectable resistance of the sensor output.
7. The sensor of claim 5 , wherein the coded indication of the light-off temperature response is a separate controller area network signal.
8. The sensor of claim 5 , wherein the coded indication of the light-off temperature response is a separate electrical signal.
9. A device comprising:
a sensor, including:
an output responsive to a sensed parameter; and
a coded indication of a sensor light-off temperature response for the sensed parameter.
10. The device of claim 9 , where the sensor is an exhaust gas sensor, and where the coded indication of the sensor light-off temperature response includes sensor-specific binary data particular to, and selected specifically for, the sensor, the coded indication stored in the sensor.
11. The device of claim 10 , where the exhaust gas sensor is a NO x sensor and the sensed parameter is a concentration of NO x , and where the sensor includes a heater.
12. The device of claim 10 , wherein the coded indication of the light-off temperature response is included in a second, separate output of the sensor.
13. The device of claim 10 , wherein the coded indication of the light-off temperature response is encoded in the output.
14. The device of claim 13 , wherein the coded indication of the light-off temperature response is generated by a selectable resistance of the sensor output.
15. The device of claim 13 , wherein the coded indication of the light-off temperature response is a separate controller area network signal.
16. The device of claim 13 , wherein the coded indication of the light-off temperature response is a separate electrical signal.