Vehicle Door Latch Drive for Gap Positioning and Icebreaking
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Solution Overview
Problem
Existing motor vehicle door arrangements require multiple electromotive drives for positioning and icebreaker functions, leading to a complex and costly structure.
Innovation Solution
Integrate the electromotive drive within the motor vehicle latch to act on a switch lever with a built-in switch sensor, allowing it to perform positioning and icebreaker functions while monitoring its operation for efficient use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple electromotive drives are used for positioning and icebreaker functions, then the positioning and icebreaker functions are achieved, but the device complexity and cost increase
Solution Approach 1:
The patent combines the positioning function and icebreaker function into a single electromotive drive unit integrated within the motor vehicle latch. This single drive unit can perform both functions by acting on different components (latch holder for positioning, door leaf for icebreaker) rather than requiring separate drive mechanisms, thereby reducing device complexity while maintaining functional reliability
Solution Approach 2:
The electromotive drive integrated in the motor vehicle latch is designed as a multi-functional unit that can serve both positioning purposes and icebreaker purposes. This universal design allows one component to fulfill multiple roles, eliminating the need for separate specialized drives and reducing overall system complexity
2Device complexity
If the electromotive drive is integrated within the latch, then the device complexity is reduced, but the monitoring capability may be compromised
Solution Approach 1:
The patent incorporates a switch sensor that detects the position of the switch lever and provides feedback signals to monitor the operation of the integrated electromotive drive. This feedback mechanism enables the control unit to track whether the drive is performing positioning or icebreaker functions, ensuring monitoring capability is maintained despite the integrated design
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
Achieves a compact and cost-effective design by integrating the electromotive drive within the latch, ensuring efficient positioning and icebreaker functions, particularly in icy conditions, while minimizing unnecessary operations.
Implementation Method 1
at least one electromotive drive (3) for positioning the door leaf (1) in a predetermined gap position relative to a motor vehicle body (2)
Data Source
AI summary
A motor vehicle door arrangement is equipped with at least one electromotive drive for positioning a door leaf in a predetermined gap position relative to a motor vehicle body. A state sensor which is connected to a control unit and detects the state of the door leaf is also provided. The control unit acts on the electromotive drive in accordance with signals of the state sensor, wherein the electromotive drive is preferably only acted on if the positioning of the door leaf, based on the state, requires this. According to the invention, for this purpose, the electromotive drive acts on a body component via a switch lever, equipped with its own switch sensor, in order to position the door leaf.