Method of traction control for a motor vehicle
AssigneeKelsey-Hayes Company
InventorsPatrick A. Hartman, Greg Timm, Jeff Breitner, Craig B. Mitchell
Life of this patent
Estimating the term…
Abstract
A method of traction control for a vehicle. Lateral and longitudinal accelerations are measured for a vehicle. A maximum supportable drive torque for a first wheel of the vehicle is calculated as a function of the lateral and longitudinal accelerations. A commanded vectoring brake torque is applied to the first wheel using a brake device. The commanded vectoring brake torque is an amount by which a driveline torque delivered to the first wheel exceeds the maximum supportable drive torque.
Claims20
A vehicle traction control system comprising:
- first and second wheels on an axle;
- a plurality of acceleration sensors measuring a lateral acceleration and a longitudinal acceleration;
- a controller in communication with the plurality of acceleration sensors and determining a maximum supportable drive torque for the first wheel as a function of the lateral acceleration and the longitudinal acceleration;
- and
- a brake device for applying a commanded vectoring brake torque to the first wheel, wherein the commanded vectoring brake torque is an amount by which a driveline torque delivered to the first wheel exceeds the maximum supportable drive torque.
A method of traction control for a vehicle comprising the steps of:
- measuring a lateral acceleration and a longitudinal acceleration for a vehicle;
- determining a maximum supportable drive torque for a first wheel of the vehicle as a function of the lateral acceleration and the longitudinal acceleration;
- applying a commanded vectoring brake torque to the first wheel using a brake device, wherein the commanded vectoring brake torque is an amount by which a driveline torque delivered to the first wheel exceeds the maximum supportable drive torque.
A method of traction control for an automotive vehicle comprising the steps of:
- measuring a lateral acceleration and a longitudinal acceleration for a turning vehicle;
- determining a first normal force acting on an inner wheel of the vehicle by a roadway surface, wherein the first normal force is a function of the lateral acceleration and the longitudinal acceleration;
- determining a second normal force acting on an outer wheel of the vehicle by the roadway surface, wherein the second normal force is a function of the lateral acceleration and the longitudinal acceleration, and wherein the inner wheel has a lesser turn radius than the outer wheel;
- determining a maximum supportable drive torque for the first wheel as a function of the first and second normal forces;
- and
- applying a commanded vectoring brake torque to the inner wheel using a brake device, wherein the commanded vectoring brake torque is an amount by which a driveline torque delivered to the first wheel exceeds the maximum supportable drive torque.
Dependencies are inferred from the claim text.