Method of controlling posture of vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsJi Won Oh, Jeong Soo Eo
Life of this patent
Estimating the term…
Abstract
A method of controlling posture of a vehicle is provided to determine a minute tendency of understeer or oversteer of the vehicle and to control the posture of the vehicle when recognizing the minute tendency of the understeer or oversteer while driving the vehicle straight. The includes determining whether torque is applied to drive wheels while driving the vehicle and acquiring equivalent inertia information of a drive system in real time based on drive system operation information in response to determining that the torque is being applied to the drive wheels. The understeer or oversteer of the vehicle is determined from the equivalent inertia information obtained in real-time.
Claims20
A method of controlling posture of a vehicle, comprising:
- determining, by a controller, whether torque is applied to drive wheels while driving the vehicle;
- acquiring, by the controller, equivalent inertia information of a drive system in real time based on drive system operation information in response to determining that the torque is being applied to the drive wherein equivalent inertia is obtained from the relationship of:
- Tq=I×α
- where Tq is torque of the drive system, I is the equivalent inertia of the drive system, and a is an angular acceleration of the drive system;
- determining, by the controller, understeer or oversteer of the vehicle from the equivalent inertia information obtained in real time;
- performing, by the controller, a correction to reduce a torque command of the drive system in response to the determining of the understeer or the oversteer of the drive system;
- and
- after the torque command is corrected, adjusting a driving of the drive system according to the corrected torque command.
Dependencies are inferred from the claim text.