Steering Wheel Haptic Feedback via Asymmetric Acceleration
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Solution Overview
Problem
Existing information presentation apparatuses in vehicles, such as those described in Patent Literature 1, face issues with non-intuitive haptic feedback due to sequential vibration methods, which require users to wait for completion, leading to prolonged presentation times and reduced intuitiveness.
Innovation Solution
An information presentation apparatus comprising an acquisition unit, an asymmetric acceleration generating unit, and a signal generating unit, which acquires and processes information to generate driving signals for the asymmetric acceleration generating unit, providing intuitive haptic feedback through the steering unit by generating asymmetric acceleration based on vehicle and external information, allowing for real-time and directionally relevant feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If sequential vibration method is used to present haptic feedback information, then the information can be presented through multiple vibrators, but the user needs to wait for completion of sequential driving, resulting in prolonged presentation time and reduced intuitiveness
Solution Approach 1:
The system segments haptic feedback information into multiple independent vibrators, where each vibrator can be driven independently to convey different aspects of information simultaneously, rather than sequentially processing through a single vibrator or waiting for sequential completion of multiple vibrators
Solution Approach 2:
The system uses periodic vibration patterns with different frequencies, amplitudes, and durations for different vibrators to encode information, allowing users to perceive multiple pieces of information simultaneously through distinct vibration characteristics rather than waiting for sequential presentation
2Adaptability or versatility
If sequential vibration method is used, then multiple vibrators can be utilized for information presentation, but the intuitiveness is reduced due to waiting time required for sequential driving completion
Solution Approach 1:
The system divides the steering wheel into multiple vibrator segments, each capable of independent activation to represent different information types (e.g., navigation, warnings, vehicle status), allowing users to intuitively understand information based on the location and pattern of vibration without cognitive processing delays
Solution Approach 2:
Different regions of the steering wheel provide different vibration characteristics tailored to specific information types, with each vibrator location offering distinct tactile feedback properties that help users quickly identify and interpret information based on the localized vibration source
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
The solution enables immediate and intuitive presentation of haptic feedback to the driver, enhancing steering assistance by providing relevant and timely information through asymmetric acceleration, improving user interaction and safety.
Implementation Method 1
an asymmetric acceleration generating unit configured to present haptic feedback information to a user via a steering unit provided in the vehicle by generating asymmetric acceleration
Data Source
AI summary
An information presentation apparatus includes an acquisition unit, an asymmetric acceleration generating unit, and a signal generating unit. The acquisition unit acquires at least one of information inside a vehicle or information outside the vehicle. The asymmetric acceleration generating unit presents haptic feedback information to a user via a steering unit provided in the vehicle by generating asymmetric acceleration. The signal generating unit generates a driving signal on the basis of information acquired by the acquisition unit and send the driving signal to the asymmetric acceleration generating unit.