Vehicle Acceleration Suppression Switching for Wrong-Key Operation
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Solution Overview
Problem
Existing vehicle systems fail to enable the acceleration suppression function against sudden accelerator step-down when a driver carries an invalid key, leading to reduced vehicle operability and safety, particularly for elderly users.
Innovation Solution
A control modification device that allows drivers to set and switch the acceleration suppression function's validity using an ID key and a control switch part, independent of the key's initial setting, through wireless communication and a display operation interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the acceleration suppression function is tied to a dedicated key, then the function's reliability is improved, but the ease of operation deteriorates when users carry the wrong key
Solution Approach 1:
The system dynamically changes the acceleration suppression function's validity state based on user input through the control switch part. The function transitions from a static key-dependent state to a dynamic state that can be adjusted by the user during operation, allowing elderly persons to enable the function even when carrying the wrong key.
Solution Approach 2:
The control switch part acts as an intermediary between the key setting and the acceleration suppression function. It provides an additional control interface that mediates the function's validity, allowing users to override the key's default setting and manually enable or disable the function as needed.
2Reliability
If the acceleration suppression function is automatically activated by a dedicated key, then the safety is improved, but the device complexity increases
Solution Approach 1:
The control switch part serves multiple functions: it allows users to override key settings, provides manual enable/disable control, and maintains compatibility with the existing key-based system. This multi-functionality adds safety capabilities without requiring a complete system redesign.
3Ease of operation
If the function validity is determined solely by the key setting, then the ease of operation is improved for authorized users, but the adaptability deteriorates for different user needs
Solution Approach 1:
The system transitions from a static key-determined validity state to a dynamic state that can be adjusted by users through the control switch part, allowing the function's validity to adapt to different user needs and situations.
Solution Approach 2:
The control switch part allows users to change the validity parameter of the acceleration suppression function independently from the key setting, enabling the same key to work with different function states depending on user requirements.
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
Enhances vehicle operability and safety by enabling drivers to activate or deactivate the acceleration suppression function as needed, regardless of the key's initial setting, improving usability and reducing the need for repeated door unlocking.
Implementation Method 1
a wireless communication part that is configured to receive a key ID from an ID key of a subject vehicle and also receive setting information
Data Source
AI summary
A control modification device for vehicle includes: an acceleration suppression control part against sudden accelerator step-down that is mounted in a subject vehicle and is configured to limit a speed of the vehicle when a speed of an accelerator pedal step-down exceeds a prescribed threshold; an ID key that stores therein setting information showing whether a function of the acceleration suppression control part against sudden accelerator step-down is made valid or invalid; a setting change part that is configured to recognize the setting information stored in the ID key and change a setting based on the recognized result; and a control switch part that is mounted on the vehicle and is configured to prompt a user of the vehicle to select and switch whether the function of the acceleration suppression control part against sudden accelerator step-down is made valid or invalid, independently from the result of the setting change.