Steering control method and system for vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorJang Hyun JUNG
Life of this patent
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Abstract
A steering control method and system for a vehicle may determine whether the snow chain has been mounted by comparing the number of times of vibrations of a certain peak or more detected by respective wheel speed sensors with respect to a current vehicle speed with a predetermined value, and selectively controls the operations of an AFS and a RWS according to the position of the wheel on which the snow chain has been mounted, when it is determined that the snow chain has been mounted.
Claims19
A steering control method for a vehicle including a plurality of wheels, the steering control method comprising:
- determining, by a controller, when a snow chain has been mounted by comparing a number of times of vibrations of a predetermined peak or more detected by respective wheel speed sensors with respect to a current vehicle speed, with a predetermined value;
- and
- selectively controlling, by the controller, operations of an Active Front Steering (AFS) and a Rear Wheel Steering (RWS) according to a position of a wheel on which the snow chain has been mounted among the plurality of wheels, when it is determined, by the controller, that the snow chain has been mounted.
A steering control system for a vehicle having a plurality of wheels, the steering control system comprising a controller including:
- an input unit of receiving information related to vibrations of the wheels detected by respective wheel speed sensors;
- a determination unit of determining a vibration frequency of each wheel by counting a number of times of vibrations of a predetermined peak or more with respect to a current vehicle speed, from the information related to the vibrations;
- a determination unit of determining that a snow chain has been mounted on a corresponding wheel when a change rate in the vibration frequency is within a predetermined range by comparing the change rate in the vibration frequency according to a change in the current vehicle speed with the predetermined range;
- and
- an output unit of outputting an operation signal to an Active Front Steering (AFS) and a Rear Wheel Steering (RWS) to selectively control operations of the AFS and the RWS according to a position of the corresponding wheel on which the snow chain has been mounted, among the plurality of wheels.
Dependencies are inferred from the claim text.