Independent Wheel Steering Trajectory Feedback for Driver Intuition
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Solution Overview
Problem
Drivers accustomed to two-wheel steering systems experience incompatibility and difficulty in predicting vehicle motion when transitioning to four-wheel independent steering systems, leading to potential collisions due to unfamiliarity with the vehicle's trajectory and surrounding space.
Innovation Solution
A steering apparatus with processors that determine target angles for each wheel based on user input through an interface, providing intuitive motion trajectories and warnings, using sensors, light radiation, and sound outputs to enhance driver awareness of vehicle movement and surrounding obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If four-wheel independent steering system is applied to provide enhanced maneuverability and freedom of driving motion, then the vehicle can perform parallel driving, diagonal driving, and turn-in-place operations, but the driver experiences sense of incompatibility and difficulty in predicting vehicle motion trajectory
Solution Approach 1:
The system provides real-time feedback to the driver by displaying predicted motion trajectories on a screen based on steering wheel angle and vehicle speed. This allows the driver to see where the vehicle will move before actually executing the maneuver, restoring intuition and predictability while maintaining the versatility of four-wheel independent steering.
Solution Approach 2:
A trajectory prediction display serves as an intermediary between the driver's steering input and the actual vehicle motion. The display shows the predicted path the vehicle will follow, mediating the complex relationship between steering angle, vehicle speed, and motion trajectory, thereby making the system's behavior predictable and intuitive.
2Adaptability or versatility
If four-wheel independent steering system is applied to enable complex motion patterns, then the vehicle achieves higher adaptability, but surrounding objects are exposed to collision danger due to unpredictable vehicle motion
Solution Approach 1:
The system calculates and displays the predicted motion trajectory in advance before the vehicle actually moves along that path. By showing the future position of the vehicle based on current steering angle and speed, surrounding objects and pedestrians can anticipate the vehicle's motion and avoid the predicted path, preventing collisions before they occur.
3Adaptability or versatility
If four-wheel independent steering is implemented without mechanical connection between wheels, then each wheel can be independently controlled for enhanced maneuverability, but the driver cannot intuitively determine vehicle motion trajectory
Solution Approach 1:
The system compensates for the loss of mechanical feedback by providing visual feedback through trajectory display. The processor calculates the predicted trajectory based on steering wheel angle and vehicle speed, then displays it on a screen, giving the driver information about vehicle motion that would otherwise be unavailable without mechanical wheel connections.
Data Source
AI summary
A steering apparatus for a vehicle including a plurality of independently steered wheels, the apparatus including one or more processors configured to execute instructions and a memory storing the instructions, wherein execution of the instructions configures the one or more processors to provide an interface, assign a motion mode of the vehicle based on a manipulation received by the interface, determine target angles of the plurality of independently steered wheels corresponding to the assigned motion mode, and output motion trajectories of the vehicle according to the determined target angles through the interface.