System and method for keeping a vehicle in a lane
AssigneeHyundai Motor Company
InventorDong Ho Shin
Life of this patent
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Abstract
The present invention relates, in general, to a system and method for keeping a vehicle in a lane in consideration of a steering wheel contortion angle, and more particularly, to a system for keeping a vehicle in a lane in consideration of a steering wheel contortion angle, which estimates the path of a vehicle in consideration of a steering wheel contortion angle attributable to the distortion of a steering shaft, thus improving the safety and riding comfort of occupants.
Claims24
A system for keeping a vehicle in a lane in consideration of a steering wheel contortion angle, comprising:
- an input information generation unit for measuring variables for dynamic characteristics of a vehicle, and estimating information about lateral motion of the vehicle using the variables for dynamic characteristics of the vehicle;
- a steering wheel contortion angle calculation unit for calculating a steering wheel contortion angle δo using variables for dynamic characteristics of the vehicle and information about lateral motion of the vehicle, which are provided by the input information generation unit;
- and
- a control unit for calculating a desired yaw rate γd using variables for dynamic characteristics of the vehicle and information about lateral motion of the vehicle which are provided by the input information generation unit, and calculating a command steering wheel angle δfo using the desired yaw rate and the information about lateral motion of the vehicle, and generating a compensated command steering wheel angle, which is a sum of the command steering wheel angle and the steering wheel contortion angle which is provided by the steering wheel contortion angle calculation unit.
A method for keeping a lane in consideration of a steering wheel contortion angle, the method comprising the steps of:
- measuring variables for dynamic characteristics of a vehicle, and estimating information about lateral motion of the vehicle using the variables for dynamic characteristics of the vehicle;
- calculating a steering wheel contortion angle δo using variables for dynamic characteristics of the vehicle and information about lateral motion of the vehicle;
- and
- calculating a desired yaw rate γd using variables for dynamic characteristics of the vehicle and information about lateral motion of the vehicle, and calculating a command steering wheel angle δfo using the desired yaw rate and the information about lateral motion of the vehicle, and generating a compensated command steering wheel angle, which is a sum of the command steering wheel angle and the steering wheel contortion angle.
A system for keeping a vehicle in a lane in consideration of a steering wheel contortion angle, comprising:
- an input information generation unit;
- a steering wheel contortion angle calculation unit;
- and
- a control unit for calculating a desired yaw rate γd using variables for dynamic characteristics of the vehicle and information about lateral motion of the vehicle which are provided by the input information generation unit.
The system of claim 20, wherein the variables for dynamic characteristics of the vehicle and information about lateral motion of the vehicle are provided by the input information generation unit.
Dependencies are inferred from the claim text.