Emulating handling characteristics with an electric vehicle
AssigneeGM Global Technology Operations LLC
InventorsOrson S. Wang, Jayant Chalke, Daniel Owen
Life of this patent
Estimating the term…
Abstract
According to several aspects, a method for controlling an electric vehicle is provided. The method may include adjusting an operation of one or more electric motors of the electric vehicle to induce a loss of traction of a first wheel of the electric vehicle on a first side of the electric vehicle. The method further may include adjusting an operation of an electric steering system of the electric vehicle to induce a yaw motion of the electric vehicle. A direction of the yaw motion is away from the first side of the electric vehicle.
Claims20
A method for controlling an electric vehicle, the method comprising:
- adjusting an operation of one or more electric motors of the electric vehicle to induce a loss of traction of a first wheel of the electric vehicle on a first side of the electric vehicle;
- and
- adjusting an operation of an electric steering system of the electric vehicle to induce a yaw motion of the electric vehicle, wherein a direction of the yaw motion is away from the first side of the electric vehicle.
A system for controlling an electric vehicle, the system comprising:
- one or more electric motors in mechanical communication with a first rear wheel on a first side of the electric vehicle and a second rear wheel on a second side of the electric vehicle;
- an electric steering system in mechanical communication with one or more front wheels of the electric vehicle;
- and
- a controller in electrical communication with the one or more electric motors and the electric steering system, wherein the controller is programmed to:
- adjust an operation of the one or more electric motors of the electric vehicle to induce a loss of traction of the first rear wheel;
- and
- adjust an operation of the electric steering system of the electric vehicle to induce a yaw motion of the electric vehicle, wherein a direction of the yaw motion is away from the first side of the electric vehicle.
A method for controlling an electric vehicle, the method comprising:
- identifying a launch state of the electric vehicle;
- adjusting an operation of one or more electric motors of the electric vehicle to induce a loss of traction of a first rear wheel of the electric vehicle on a first side of the electric vehicle during an acceleration time period in response to identifying the launch state;
- adjusting an operation of an electric steering system of the electric vehicle to induce a yaw motion of the electric vehicle during the acceleration time period in response to identifying the launch state, wherein a direction of the yaw motion is away from the first side of the electric vehicle;
- increasing a slip threshold of a traction control system of the electric vehicle for the first rear wheel during the acceleration time period;
- and
- adjusting a torque-speed curve of the one or more electric motors during the acceleration time period based at least in part on a reference torque-speed curve obtained from a reference vehicle having an internal combustion engine.
Dependencies are inferred from the claim text.