System and method for vehicle dynamics control in electric drive vehicles
AssigneeWrightspeed, Inc.
InventorsIan Wright, Ryan Cash
Life of this patent
Estimating the term…
Abstract
Embodiments of the invention are directed toward a geared traction drive system configured to drive a wheel of a vehicle, comprising: a driveshaft for transmitting power to the wheel; an electric drive motor for driving the driveshaft, the electric drive motor configured to receive signals from a vehicle dynamic control system to command a required speed; a gear reduction component for reducing the speed of the motor by a predetermined factor to a lower speed suitable for driving the wheel; and a drive electronics component that works with the electric drive motor to drive the wheel to the speed commanded by the vehicle dynamic control system.
Claims25
A geared traction drive system configured to drive a wheel of a vehicle, comprising:
- a driveshaft for transmitting power to the wheel;
- an electric drive motor for driving the driveshaft, the electric drive motor configured to receive signals from a vehicle dynamic control system to command a required speed;
- a gear reduction component for reducing the speed of the motor by a predetermined factor to a lower speed suitable for driving the wheel;
- and
- a drive electronics component that works with the electric drive motor to drive the wheel to the speed commanded by the vehicle dynamic control system.
A computer program product comprising a non-transitory computer readable medium having computer executable program code embodied thereon, the computer executable program code configured to drive a wheel of a vehicle using a geared traction drive system including a driveshaft for transmitting power to the wheel, an electric drive motor for driving the driveshaft, a gear reduction component, and a drive electronics component, by performing the steps of:
- receiving sensor inputs from a plurality of sensors;
- calculating a required wheel speed;
- and
- sending appropriate signals to the electric drive motor to command the required wheel speed.
Dependencies are inferred from the claim text.