Multi-Drive Test Bench for Translational Load Simulation
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Solution Overview
Problem
Existing methods for testing vehicle components, such as control units and sensors, in artificial environments are time-consuming and costly, and many scenarios cannot be realistically simulated, especially those occurring only in extreme conditions like accidents.
Innovation Solution
A test bench that applies a translational load to vehicle components using multiple drives regulated by a central control unit, allowing for realistic simulation and efficient use of space, with the ability to emulate vehicle bus communication and vary operating conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple drives are used to generate the translational load on the vehicle component, then the testing can be carried out more realistically with accurate load distribution, but the device complexity and space requirements increase
Solution Approach 1:
The test bench divides the load generation function into multiple independent drives (at least two drives), each capable of generating translational load independently. This segmentation allows for more realistic simulation of vehicle operating conditions while enabling individual drive regulation based on a central reference variable, thereby improving testing accuracy without requiring a single overly complex drive system
Solution Approach 2:
The test bench combines multiple drives into a coordinated system regulated by a central control unit that distributes the reference variable to all drives. This merging approach allows the drives to work together as a unified load generation system, achieving realistic load distribution while maintaining manageable complexity through centralized coordination rather than requiring each drive to be independently complex
2Reliability
If multiple drives are arranged in a distributed manner to generate load, then the load distribution can be controlled, but the test bench occupies more space
Solution Approach 1:
The patent utilizes the dimensional flexibility of drive arrangement by allowing drives to be positioned in different spatial configurations (e.g., parallel axes, perpendicular axes, or angular orientations) while all contributing to translational load along the component axis. This dimensional approach enables compact packaging of multiple drives without compromising their ability to distribute load accurately, effectively decoupling space requirements from load control capability
3Device complexity
If a single drive is used to generate the translational load, then the test bench design is simpler, but the testing cannot realistically simulate extreme conditions and load distribution is limited
Solution Approach 1:
Each drive in the multi-drive system is designed to be universally capable of generating the full range of translational loads required for different testing scenarios, including extreme conditions. The central control unit distributes the reference variable to enable each drive to operate independently or in combination, providing versatile testing capability across multiple scenarios without requiring specialized single-purpose drives, thus achieving adaptability without proportionally increasing complexity
Data Source
AI summary
A test bench for at least one vehicle component, wherein the test bench is set up to exert a translational load on the at least one vehicle component in a direction of a component axis. The test bench has a plurality of drives that are set up to generate the load. A test bench control is provided, which is designed to jointly regulate the drives in order to achieve a load on the vehicle component based on a reference variable. A method for generating a translational load is also provided.