Sensor system for a vehicle

1. A system, comprising:

a first sensor configured to be onboard a first vehicle, the first sensor configured to sense one or more environmental parameters;

a second sensor configured to be onboard a second vehicle, the second sensor configured to sense the one or more environmental parameters;

a controller configured to be onboard the first vehicle, the controller configured to receive a first signal output by the first sensor that indicates a value of the one or more environmental parameters sensed by the first sensor, the controller configured to control operation of a power component of the first vehicle using the value of the one or more environmental parameters received from the first sensor,

the controller is configured to detect undesirable operation of the first sensor and to transition to receiving a second signal output by the second sensor that indicates the value of the one or more environmental parameters, the controller is configured to control the operation of the power component of the first vehicle using the value of the one or more environmental parameters received from the second sensor; and

the controller is configured to adjust the value of the one or more environmental parameters from the second signal based at least in part on a determined distance between the first vehicle and the second vehicle.

2. The system of claim 1 , wherein the controller is configured to receive the second signal from the second sensor on the second vehicle as a wireless signal.

3. The system of claim 1 , wherein the controller is configured to receive the second signal from the second sensor on the second vehicle as an electronic signal conducted to the controller from the second sensor via one or more conductive pathways extending between the first vehicle and the second vehicle.

4. The system of claim 1 , wherein the controller is configured to change a rating of an engine of the first vehicle using the value of the one or more environmental parameters as received from the first sensor and as received from the second sensor.

5. The system of claim 1 , wherein the controller is configured to receive the second signal from the second sensor while the first vehicle and the second vehicle are mechanically coupled with each other in a multi-vehicle system.

6. The system of claim 1 , wherein the controller is configured to receive the second signal from the second sensor while the first vehicle and the second vehicle remain separate but move together as a vehicle group.

7. The system of claim 1 , wherein the controller is configured to receive the second signal from the second sensor while the first vehicle and the second vehicle remain separate and move in different directions relative to each other.

8. The system of claim 1 , wherein the first sensor and the second sensor are configured to measure one or more of barometric air pressure, ambient air temperature, air quality, and a moving speed of at least one of the first vehicle and the second vehicle as the one or more environmental parameters.

9. The system of claim 1 , wherein the first sensor and the second sensor are configured to measure a state of an adhesion-modifying device or a level of tractive effort of the first vehicle or the second vehicle as the one or more environmental parameters.

10. A method comprising:

sensing one or more environmental parameters using a first sensor disposed onboard a first vehicle;

sensing the one or more environmental parameters using a second sensor disposed onboard a second vehicle;

communicating a first signal from the first sensor to a controller disposed onboard the first vehicle, the first signal indicating a value of the one or more environmental parameters sensed by the first sensor;

controlling operation of a power component of the first vehicle using a controller onboard the first vehicle based on the value of the one or more environmental parameters received from the first sensor;

detecting undesired operation of the first sensor;

transitioning to communicating a second signal output by the second sensor to the controller, the second signal indicating the value of the one or more environmental parameters;

adjusting the value of the one or more environmental parameters from the second signal based at least in part on a determined distance between the first and the second vehicles; and

controlling the operation of the power component of the first vehicle using the value of the one or more environmental parameters received from the second sensor.

11. The method of claim 10 , wherein the second signal is communicated as a wireless signal from the second sensor to the controller.

12. The method of claim 10 , wherein the second signal is communicated as an electronic signal conducted to the controller from the second sensor via one or more conductive pathways extending between the first vehicle and the second vehicle.

13. The method of claim 12 , wherein the second signal is communicated from the second sensor to the controller while the first vehicle and the second vehicle are mechanically coupled with each other in a multi-vehicle system.

14. The method of claim 10 , wherein controlling the operation of the power component includes changing a rating of an engine of the first vehicle using the value of the one or more environmental parameters as received from the first sensor and as received from the second sensor.

15. The method of claim 10 , wherein the second signal is communicated from the second sensor to the controller while the first vehicle and the second vehicle remain separate but move together as a vehicle group.

16. The method of claim 10 , wherein the second signal is communicated from the second sensor to the controller while the first vehicle and the second vehicle remain separate and move in different directions relative to each other.

17. The method of claim 10 , wherein the one or more environmental parameters include one or more of barometric air pressure, ambient air temperature, air quality, and a moving speed of at least one of the first vehicle and the second vehicle.

18. The method of claim 10 , wherein the one or more environmental parameters include a state of an adhesion-modifying device of the first vehicle or the second vehicle as the one or more environmental parameters.

19. A system comprising:

a first sensor disposed onboard a first vehicle of a multi-vehicle system;

a second sensor disposed onboard a second vehicle of the multi-vehicle system, both the first sensor and the second sensor measuring values of an environmental condition outside of the multi-vehicle system; and

a controller disposed onboard the first vehicle, the controller configured to;

automatically derate the engine of the first vehicle responsive to no longer receiving the values of the environmental condition;

to switch to receiving the values of the environmental condition from the first sensor to receiving the values of the environmental condition from the second sensor to avoid derating the engine of the first vehicle,

wherein the controller is configured to adjust the values of the environmental condition from the second signal based at least in part on a determined distance between the first and second vehicles.

20. The system of claim 19 , wherein the first vehicle and the second vehicle are not mechanically coupled with each other.