Pseudo Shifter Vibration Alerts for EV Collision Warning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for notifying drivers of approaching objects in battery electric vehicles using seat vibration are ineffective due to the driver's difficulty in distinguishing between danger notifications and vibrations from uneven road surfaces, leading to potential delays in response.
Innovation Solution
The battery electric vehicle incorporates a control device that selectively vibrates either the pseudo shifting operation members (such as the pseudo H-shifter and pseudo paddle shifter) or interior components to provide notification, ensuring the driver easily recognizes the alert by using sensitive body parts and visually perceives the vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the seat is vibrated to notify the driver of a dangerous situation, then the driver can be notified of the danger, but the driver may be unable to distinguish whether it is the vibration applied to notify him or her of a danger or the vibration generated by an uneven road surface
Solution Approach 1:
The notification system is segmented into multiple independent vibration actuators positioned at different locations within the seat. By activating specific actuators based on the direction and nature of the detected object, the system creates distinct vibration patterns that help the driver identify the notification source and differentiate it from road surface vibrations.
Solution Approach 2:
Different regions of the seat are equipped with vibration actuators that can be independently controlled. The system applies vibration to specific local areas of the seat corresponding to the direction of the approaching object, creating localized vibration patterns that are distinct from general road surface vibrations and provide directional information to the driver.
2Reliability
If vibration is applied to the seat to notify the driver, then the driver can be notified of the approaching object, but the driver may not easily notice the notification depending on the member to be vibrated
Solution Approach 1:
The system targets specific sensitive areas of the driver's body by positioning vibration actuators at locations such as the shoulders, hips, and thighs. By applying vibration to these sensitive areas, the notification becomes more noticeable and easier for the driver to detect, improving overall awareness while maintaining reliability.
Solution Approach 2:
The vibration notification is implemented as a periodic or pulsating vibration pattern rather than a continuous vibration. This periodic action creates a more noticeable and distinctive sensation that easily captures the driver's attention and distinguishes the notification from continuous road surface vibrations.
3Ease of operation
If the driver touches the pseudo shifting operation member with his or her hand or foot that is relatively sensitive, then the driver can easily notice the notification given by the vibration, but additional components must be added to the vehicle interior
Solution Approach 1:
The pseudo shifting operation member serves dual functions: it maintains its original role as a shifting control interface for manual transmission simulation while simultaneously serving as a vibration notification device. By integrating the vibration actuator into the existing pseudo shifting operation member, the system achieves multi-functionality without adding separate notification components to the vehicle interior.
Solution Approach 2:
The notification function is merged with the existing pseudo shifting operation member by integrating a vibration actuator into its structure. This combination allows the pseudo shifting operation member to serve both as a control interface and as a notification device, eliminating the need for separate notification components and reducing overall system complexity.
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
This approach enhances the driver's ability to promptly notice collision warnings by effectively utilizing the sensitivity of hands and feet, reducing the risk of missed notifications and potential collisions.
Implementation Method 1
give notification to the driver by vibrating any member provided in a cabin of the battery electric vehicle. The notification that is given to the driver during execution of the control mode includes notifying the driver by vibrating the pseudo shifting operation member
Data Source
AI summary
A battery electric vehicle includes: a pseudo shifting operation member imitating an operation member that is used to perform a shifting operation of a manual transmission internal combustion engine vehicle; a control device configured to control the battery electric vehicle; and a perception sensor configured to detect an object approaching the battery electric vehicle. The control device is configured to: execute, according to selection by a driver, a control mode in which an operation of the pseudo shifting operation member is associated with torque of the electric motor; and in a case where the object approaching the battery electric vehicle is detected, give notification to the driver by vibrating any member provided in a cabin of the battery electric vehicle. The notification that is given to the driver during execution of the control mode includes notifying the driver by vibrating the pseudo shifting operation member.