Vehicle Door Counterforce System for Parking Exit Safety
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Solution Overview
Problem
Existing vehicle exit assist systems during parking primarily focus on passenger safety but fail to adequately address the risk of damage to vehicles or surrounding objects, as they do not consider the weight and space requirements for all occupants and objects within the vehicle effectively.
Innovation Solution
A vehicle exit assist system that senses the presence and weight of passengers and objects, determines the minimum required door space, and activates a counter force device, such as a door lock or friction generator, to prevent door opening if the available space is insufficient, thereby preventing damage during exit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle door is opened without checking available space, then the exit process is quick and simple, but the risk of damage to the vehicle or surrounding objects increases
Solution Approach 1:
The system performs preliminary detection of available door space and calculation of minimum required space before the door opening action. Sensors detect obstacles and the control unit determines whether sufficient space exists, preventing harmful door opening actions in advance
Solution Approach 2:
The system continuously monitors door space availability through sensors and provides feedback to the control unit, which then activates counterforce devices or alerts based on the detected conditions, creating a closed-loop control system that prevents damage
2Object-affected harmful factors
If a counter force device is activated to prevent door opening, then the risk of damage is reduced, but the device complexity increases
Solution Approach 1:
The system uses the vehicle's existing door lock mechanism as a counterforce device, leveraging already-available components rather than introducing entirely new mechanical systems. The control unit activates existing locking mechanisms to prevent door opening when necessary
Solution Approach 2:
The door lock mechanism serves dual functions: its traditional security function and the new function of preventing door opening when insufficient space is detected. This multi-functionality reduces the need for dedicated counterforce devices
3Productivity
If the system considers weight and space requirements for all occupants and objects, then the exit optimization is improved, but the measurement precision requirements increase
Solution Approach 1:
The system detects the presence and weight of occupants and objects, but uses predetermined minimum space requirements rather than calculating exact optimal space for each scenario. This approach provides sufficient optimization without requiring extremely precise measurement and calculation for every variable
Data Source
Figure 1
Figure 2a
Figure 2b~2d
AI summary
Method performed by a vehicle exit assist system (100) for optimizing the exit of a driver/passenger or objects from the vehicle (270) during parking, the method comprising: sensing the presence of driver/passengers and/or objects in the vehicle (270), determining driver/passenger and/or object location data in the vehicle based on sensed presence (270), transmitting driver/passenger and/or object location data to a park assist system (200) for determining optimal parking route and parking position data, receiving the optimal parking position data from the park assist system, requesting available vehicle door space for each vehicle door having an associated driver/passenger or object based on the parking position data, receiving available vehicle door space for each vehicle door having an associated passenger or object based on the parking positon data, determining a minimum required vehicle door space for each vehicle door having an associated driver/passenger or object, activating a vehicle door counter force device (300) for creating a force against opening the vehicle door if the available vehicle door space is less than a minimum required vehicle door space for each vehicle door having an associated driver/passenger or object.