Motor Vehicle Transmission Locking Arrangement with Electromagnetic Safety Mechanism
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Solution Overview
Problem
Existing locking arrangements for motor vehicle transmissions lack a compact and reliable design with modular construction, leading to increased production costs and vulnerability to faults.
Innovation Solution
A locking arrangement featuring a pivotable locking pawl, a control element driven by a spindle drive with an electromagnet and elastic elements, allowing for reliable engagement and disengagement with a locking toothing, and a holding mechanism to maintain positions, ensuring compactness and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a compact locking arrangement is designed with reduced components, then manufacturing cost decreases and reliability improves, but the complexity of ensuring reliable operation under fault conditions increases
Solution Approach 1:
The patent implements a safety mechanism with an electromagnet and elastic element that prepares the locking system in advance to handle faults. The elastic element stores energy to enable fallback positioning, and the electromagnet can actively intervene to reposition the control element if the primary drive unit fails, ensuring reliability without adding excessive components
2Ease of manufacture
If the locking arrangement uses a simple drive unit structure, then manufacturing cost decreases, but the ability to adapt to different fault conditions and ensure reliable operation deteriorates
Solution Approach 1:
The patent introduces a safety mechanism as an intermediary system between the primary drive unit and the control element. This intermediary comprises an electromagnet and elastic element that can activate selectively to reposition the control element when the primary drive fails, providing adaptability to faults while maintaining a relatively simple overall structure that keeps manufacturing costs low
3Volume of moving object
If the locking arrangement integrates multiple functions in fewer components, then device compactness improves, but the difficulty of detecting and measuring fault conditions increases
Solution Approach 1:
The patent employs a sensor system that detects the position of the control element and the state of the electromagnet to monitor fault conditions. While the patent does not explicitly use color changes, it implements detection mechanisms that identify operational states and fault conditions through position sensing and electrical state monitoring, allowing fault detection in the compact 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
The solution provides a compact, reliable, and cost-effective locking arrangement with reduced component count, capable of adapting to faults and ensuring reliable operation by using an electromagnet and elastic elements to maintain control element positions.
Implementation Method 1
a safety mechanism comprising an electromagnet, an actuator and a first elastic element, wherein the actuator is pretensioned in a first actuator position by the first elastic element and can be held in a second actuator position by the electromagnet
Data Source
AI summary
A locking arrangement for a transmission of a motor vehicle, comprising a locking toothing; a locking pawl, wherein the locking pawl is pivotable about a first rotary axis; a control element, wherein the locking pawl can be brought optionally into engagement with the locking toothing via the control element; a drive unit, wherein the control element can be brought by means of the drive unit into a release position and a locking position; a holding mechanism, wherein the control element can be held by means of the holding mechanism in the release position and in the locking position; and a safety mechanism comprising an electromagnet, an actuator and a first elastic element, wherein the actuator is pretensioned in a first actuator position by the first elastic element and can be held in a second actuator position by the electromagnet.