Vehicle Door Control Unit Priority Sequencing
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Solution Overview
Problem
Existing motor vehicle systems require manual operation of electromotive door adjusting devices to close doors, which increases user effort and electrical load, especially in hot environments where doors are often opened for cooling, leading to inefficient power consumption and potential damage to electrical systems.
Innovation Solution
A method and system utilizing a control unit to manage multiple electromotive door adjusting devices with a priority rule, allowing for simultaneous or time-shifted activation and closure of doors to reduce electrical load and improve comfort by optimizing power consumption and door closure sequences based on ambient conditions and user requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple doors are closed simultaneously using electromotive door adjusting devices, then door closure efficiency is improved, but electrical load and power consumption increase significantly
Solution Approach 1:
The patent divides the simultaneous door closure operation into sequential segments by introducing a priority rule. Doors are closed one after another in a predetermined sequence rather than simultaneously, which segments the electrical load demand and prevents peak power consumption while maintaining overall closure efficiency.
2Ease of operation
If the electric motor is activated immediately upon switch activation, then user feedback and comfort are improved, but unnecessary power consumption occurs when doors need to remain open
Solution Approach 1:
The patent introduces dynamic control of the electromotive door adjusting devices based on ambient conditions. The system dynamically determines whether to activate door closure based on factors such as ambient temperature, avoiding unnecessary activation when doors should remain open for cooling, thus reducing power consumption while maintaining responsive operation when needed.
3Temperature
If all doors are opened for cooling in hot environments, then thermal comfort is improved, but subsequent closure requires significant user effort and time
Solution Approach 1:
The patent implements a system where the electromotive door adjusting devices automatically close doors without requiring manual user intervention. The control unit autonomously manages the door closure sequence based on priority rules, eliminating the need for the driver to physically visit each door and operate switches, thus recovering the time lost during cooling periods.
4Speed
If multiple electromotive door adjusting devices are operated simultaneously, then door closure speed is improved, but electrical system damage risk increases due to high power peaks
Solution Approach 1:
The patent segments the operation of multiple electromotive door adjusting devices by implementing a priority rule that activates them sequentially rather than simultaneously. This segmentation of operational timing reduces peak power demand on the electrical system, preventing damage while maintaining efficient overall closure speed through optimized sequencing.
Data Source
AI summary
A method for operating a system of a motor vehicle including a first electromotive door adjusting device having a first door, and a second electromotive door adjusting device having a second door. A request for carrying out a closing movement of the first door and for carrying out a closing movement of the second door is detected, and a priority rule is ascertained for activating the first electromotive door adjusting device and the second electromotive door adjusting device. The first electromotive door adjusting device and the second electromotive door adjusting device are activated on the basis of the priority rule. A system for a motor vehicle is also provided.