Motor Vehicle Door Control Unit with Currentless Arresting Device
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Solution Overview
Problem
Existing devices for adjusting motor vehicle elements, such as doors, consume excessive electrical energy due to the need for continuous power to maintain functional positions.
Innovation Solution
The control unit coordinates the arresting device and drive device to operate with a time overlap, ensuring the arresting device fixes the element currentlessly, reducing energy consumption while maintaining functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive device is continuously controlled to maintain functional positions, then the reliability and responsiveness of the adjustable element is improved, but the electrical energy consumption increases
Solution Approach 1:
The patent applies periodic action by switching the drive device between active controlled states and inactive states. The control unit activates the drive device only when adjustment is needed (periodic activation), and allows it to remain inactive during stable functional positions. This periodic on/off control pattern maintains system reliability when needed while dramatically reducing electrical energy consumption during normal operation.
Solution Approach 2:
The patent implements self-service through the arresting device that can hold the adjustable element in position without continuous power input. Once the drive device positions the element, the arresting device takes over to maintain that position passively, allowing the drive device to power down. This self-holding capability eliminates the need for continuous active control, reducing energy consumption while maintaining functional reliability.
2Use of energy by moving object
If the arresting device operates in a currentless fixing state, then the electrical energy consumption is reduced, but the transition between fixing and releasing positions requires additional control complexity
Solution Approach 1:
The patent merges the functions of the arresting device and drive device through their coordinated control. The control unit integrates control signals for both devices, managing their interactions seamlessly. When transition is needed, the control unit coordinates the release of the arresting device with the activation of the drive device, combining their functions into a unified control sequence that manages complexity while maintaining energy efficiency.
Solution Approach 2:
The patent applies preliminary action by preparing the drive device for activation before the arresting device is released. The control unit pre-positions or pre-activates the drive device in anticipation of the transition need, so that when the arresting device releases, the drive device is already ready to immediately take over control. This preliminary preparation simplifies the overall transition process and reduces control complexity.
Data Source
AI summary
A device for acting on a motor vehicle adjustable element, such as, for example, a motor vehicle door. In its basic construction, the device is equipped with an arresting device and a drive device, and with a control unit which acts on one or both devices on the basis of signals from at least one sensor. According to the invention, the control unit controls the preferably currentlessly fixing arresting device and the drive device in dependence on signals from the sensor with a time overlap.