Steering Wheel Light Indication for Automated Driving Behavior
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Solution Overview
Problem
Automated driving vehicles lack effective means to intuitively present vehicle behavior to occupants, as existing light-emitting units on steering wheels are not designed to indicate future vehicle trajectories during automated driving control, making it difficult for drivers to understand vehicle behavior.
Innovation Solution
A vehicle behavior transmission device that calculates vehicle behavior during automated driving, determines a light emission pattern based on this behavior, and uses light sources on the steering wheel to indicate the direction of vehicle movement, allowing occupants to visually recognize the future trajectory and understand vehicle behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a light-emitting unit is disposed on a steering wheel to present information, then information can be presented to the driver, but the information is not intuitive and the driver cannot easily understand vehicle behavior during automated driving control
Solution Approach 1:
The patent applies local quality by positioning light sources at specific locations on the steering wheel that correspond to directional information. Different positions of the steering wheel (e.g., left side, right side, top, bottom) represent different vehicle behavior directions, creating a localized mapping between physical position and informational meaning that enhances intuitive understanding
Solution Approach 2:
The patent transforms one-dimensional light emission into two-dimensional spatial indication by utilizing the circular geometry of the steering wheel. The light sources are arranged around the circumference, allowing directional information to be conveyed through angular position rather than just intensity or color, thereby adding a spatial dimension to the information presentation
2Loss of information
If light sources are used to indicate vehicle behavior, then information can be transmitted, but the position of emission on the steering wheel is irrelevant to the meaning, making it difficult to understand intuitively
Solution Approach 1:
The patent establishes a precise mapping between light emission positions and vehicle behavior directions. Specific angular positions on the steering wheel correspond to specific directions of vehicle movement or intended maneuver, creating a meaningful spatial code that the driver can intuitively interpret based on the familiar steering wheel interface
Solution Approach 2:
The patent divides the steering wheel circumference into multiple discrete light-emitting positions, each representing a different directional information. This segmentation allows the system to convey specific directional data (e.g., left turn, right turn, straight) through distinct positional coding rather than using a continuous or ambiguous indication method
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables occupants to intuitively understand vehicle behavior by presenting the direction and magnitude of vehicle movement through a pattern of light emission on the steering wheel, enhancing safety and reducing confusion during automated driving.
Implementation Method 1
causing light sources disposed on a steering wheel to emit light according to the pattern of emission
Data Source
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Figure 3(a)~3(b)
AI summary
Provided is a vehicle behavior transmission device which is capable of presenting in advance vehicle behavior in such a way as to allow an occupant to easily and intuitively understand the vehicle behavior which occurs during automated driving control. The vehicle behavior transmission device in an automated driving vehicle capable of automatically controlling the vehicle behavior includes: a vehicle behavior calculation unit 12 which calculates the vehicle behavior during the automated driving control; an emission pattern determination unit 13 which determines a pattern of emission according to the calculated vehicle behavior; and an indication unit 2 which includes a light source disposed on a steering wheel and indicates a direction in which the vehicle behavior occurs by causing the light source to emit light according to the pattern of emission.