Devices, systems, and methods for transmitting vehicle data
Systems and methods for coordinating and controlling vehicles, for example heavy trucks, to follow closely behind each other, or linking to form a platoon. In one aspect, on-board controllers in each vehicle interact with vehicular sensors to monitor and control, for example, gear ratios on vehicles. A front vehicle can shift a gear which, via a vehicle-to-vehicle communication link, can cause a rear vehicle to shift gears. To maintain a gap, vehicles may shift gears at various relative positions based on a grade of a road.
1. A method for shifting a gear ratio of a transmission at a first vehicle, comprising:
establishing a communication link between the first vehicle and a second vehicle, wherein the first vehicle and the second vehicle are platooning;
receiving data at the first vehicle, via the communication link, indicating a gear-ratio shift at the second vehicle; and
shifting the gear ratio at the first vehicle in response to receiving the data indicating the gear-ratio shift at the second vehicle in order to maintain a gap.
2. The method of claim 1 , wherein a location and an amount of the gear-ratio shift at the first vehicle is based at least in part on a location and an amount of the gear-ratio shift at the second vehicle.
3. The method of claim 1 , wherein a position and an amount of the gear-ratio shift at the first vehicle is based at least in part on a grade of a road on which the first vehicle and the second vehicle are traveling.
4. The method of claim 1 , wherein a time and an amount of the gear-ratio shift at the first vehicle is based at least in part on a location and an amount of the gear-ratio shift at the second vehicle.
5. The method of claim 1 , wherein a time and an amount of the gear-ratio shift at the first vehicle is based at least in part on a grade of a road on which the first vehicle and the second vehicle are traveling.
6. The method of claim 1 , wherein the transmission is a continuously variable transmission.
7. The method of claim 1 , wherein at least one of the first vehicle and the second vehicle are an electric vehicle.
8. The method of claim 1 , wherein the gear-ratio shift at the second vehicle occurs in response to the second vehicle traveling uphill.
9. The method of claim 8 , wherein shifting the gear ratio at the first vehicle occurs at a particular location.
10. The method of claim 1 , wherein maintaining the gap comprises increasing the gap as the first vehicle and the second vehicle travel uphill, and decreasing the gap as the first vehicle and the second vehicle travel downhill.
11. The method of claim 1 , wherein at least one of the first vehicle and the second vehicle use predictive cruise control to assist with maintaining the gap.
12. A method for shifting gears at a first vehicle, comprising:
receiving information, at the first vehicle, about a second vehicle shifting gears via a vehicle-to-vehicle communication link; and
shifting gears at the first vehicle based at least in part on the information received from the second vehicle.
13. The method of claim 12 , wherein the first vehicle and the second vehicle shift gears based at least in part on a current location of the first vehicle, a current location of the second vehicle, and a map including terrain information.
14. The method of claim 12 , wherein the first vehicle shifts gears at a location that is determined by a machine learning algorithm.
15. The method of claim 12 , wherein a location and an amount of the gears shifted at the first vehicle is based at least in part on a location and an amount of the gears shifted at the second vehicle.
16. The method of claim 12 , wherein shifting gears at the first vehicle causes a gap to be maintained while the first vehicle and the second vehicle are traveling in a platoon.
17. A system for platooning vehicles comprising:
a processor;
a memory; and
a platooning engine, wherein the platooning engine is configured to cause the processor to:
establish a communication link between a first vehicle and a second vehicle;
receive information via the communication link, at the first vehicle, about the second vehicle changing a gear ratio; and
to maintain a gap, change a gear ratio at the first vehicle based on the change in the gear ratio at the second vehicle.
18. The system of claim 17 , wherein the location where the first vehicle changes gears is based on historical data.
19. The system of claim 17 , wherein a location and an amount of the gear-ratio change at the first vehicle is based at least in part on a location and an amount of the gear-ratio change at the second vehicle.
20. The system of claim 17 , wherein a position and an amount of the gear-ratio change at the first vehicle is based at least in part on a grade of a road on which the first vehicle and the second vehicle are traveling.