Split Vehicle Door Layout for Low-Body Access and Rain Sealing
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Solution Overview
Problem
Low vehicle body designs cause inconvenience for passengers to enter and exit, and existing vehicle doors allow rain and snow ingress, leading to contamination and difficulty in opening during emergencies.
Innovation Solution
A vehicle door system with separate top and side doors that can be operated independently, featuring sealing members and a control method to prevent water ingress and facilitate easy entry and exit, with enhanced flexibility and rescue capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle body is designed with a low profile to reduce wind resistance and increase stability, then aerodynamic performance is improved, but passenger convenience for entering and exiting the vehicle deteriorates
Solution Approach 1:
The door system is divided into two independent parts: a top door that opens upward and a side door that opens sideways. This segmentation allows the top door to provide adequate entry/exit height clearance even when the vehicle body is low, while the side door provides lateral access. The segmented design resolves the contradiction by enabling passenger convenience without compromising the low vehicle body profile for aerodynamic performance.
2Ease of operation
If the top door and side door are connected to open simultaneously, then the door opening function is achieved, but rain and snow ingress into the vehicle body causing contamination
Solution Approach 1:
The door system incorporates dynamic control capabilities where the top door and side door can be operated independently or simultaneously based on different modes. The system includes a first opening mode (top door only), a second opening mode (side door only), and a third opening mode (both doors). This dynamic operation allows selective door opening to prevent rain and snow ingress while maintaining the door opening function.
Solution Approach 2:
The system includes a sealing member that can be preliminarily positioned to seal the doorway before the top door is opened. Additionally, the control method can detect rain or snow conditions and prevent top door opening under such conditions, performing preliminary protective action to avoid water ingress before it occurs.
3Ease of operation
If water accumulates on the top door after rain and snow, then the top door surface is affected, but water enters the vehicle body from door edges causing contamination
Solution Approach 1:
The system incorporates a sealing member that can be preliminarily positioned to seal the doorway before the top door is opened. This preliminary sealing action prevents water that has accumulated on the top door from entering the vehicle body when the door is opened, addressing the water ingress problem while maintaining normal door opening operation.
4Device complexity
If a single door structure is used, then the structure is simple, but emergency rescue is difficult due to limited opening space
Solution Approach 1:
The door system is segmented into a top door and a side door that can operate independently. In emergency rescue situations, the top door can be opened to provide vertical access and the side door can be opened to provide lateral access, creating a larger combined opening space compared to a single door structure. This segmentation enhances emergency rescue capability while maintaining relatively simple individual door structures.
Data Source
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AI summary
A vehicle door system and a control method thereof, and a vehicle having the same. The vehicle door system comprises: a top door (3), the top door (3) opening or closing a first opening (11) of a vehicle body top portion (100b); and a side door (4), the side door (4) comprising a side door member (41) and a side window (42), wherein the side door member (41) opens or closes a second opening (12aa) of a vehicle body side wall (100a), the side window (42) is mounted on the side door member (41), both a top edge and a side edge of the side window (42) are configured to be frameless, and the side window (42) is capable of raising or lowering relative to the side door member (41). When the side door body (41) closes the second opening (12aa), the side window (42) raises or lowers to open or close a third opening (12ab) of the vehicle body side wall (100a), wherein the third opening (12ab) is located above the second opening (12aa), and the first opening (11), the second opening (12aa), and the third opening (12ab) communicate with each other.