Motorized Vehicle Door Closing Mechanism with Manual Extraction
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Solution Overview
Problem
The existing motorized vehicle door closing systems face high implementation effort due to counter-torques and pinch hazards, while providing limited user comfort, especially in Coupe vehicle chassis types where manual closing is cumbersome.
Innovation Solution
The system is designed to be partially motorized and partially manual, where the door drive mechanism moves the vehicle door to a 'comfortable open position' and then the user completes the closing process manually, with the drive mechanism being mechanically separated from the door during this manual section to reduce effort and eliminate pinch hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle door is equipped with a door drive mechanism for motorized closing, then user comfort is improved, but implementation effort and device complexity increase
Solution Approach 1:
The closing process is divided into two distinct phases: a first closing phase where the door drive mechanism provides motorized assistance, and a second closing phase where the user closes the door manually without motorized assistance. This segmentation allows the system to provide user comfort only when needed (during the difficult first phase) while avoiding the complexity and costs of continuous motorized operation.
2Reliability
If a closure aid is used to overcome counter-torques near the closed position, then door closing reliability is improved, but device complexity increases
Solution Approach 1:
The door drive mechanism is completely removed or disengaged during the second closing phase, eliminating the need for complex closure aids designed to overcome counter-torques. By extracting the motorized assistance only when it is most needed (during the first closing phase), the system achieves reliable door closing without the complexity of continuous motorized support.
3Ease of operation
If the door drive mechanism operates throughout the entire closing process, then user comfort is maintained, but pinch hazards increase
Solution Approach 1:
The door drive mechanism is extracted or disengaged during the second closing phase, eliminating the pinch hazard associated with motorized operation near the closed position. This extraction maintains user comfort during the critical first phase while removing the harmful pinch effect during the final manual closing phase.
Data Source
AI summary
A method of motorized movement of a vehicle door, wherein the vehicle door can be moved from an open position to a closed position as part of a closing process with a door drive mechanism associated with the vehicle door and a control system. In a first section of the closing process the vehicle door is moved by the door drive mechanism from the open position to a comfortable open position that lies between the open position and the closed position. In a second section of the closing process, the vehicle door is further moved from the comfortable open position in the closing direction, preferably to the closed position, manually by the user and largely free of the door drive mechanism.