Dummy Limb With Integrated Drive and Magnetic Collision Release
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Solution Overview
Problem
Existing dummy objects for testing driver assistance systems in vehicles face issues with complexity, weight distribution, and damage susceptibility during collisions, limiting their flexibility and operational integrity.
Innovation Solution
The drive unit for moving limbs is integrated within the limb itself, optimizing weight distribution and allowing for independent limb movement, with a magnetic connection to the torso for non-destructive separation during collisions, and autonomous operation via integrated power and communication units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the drive unit is arranged outside the dummy object, then the dummy object structure is simpler, but the device complexity increases and flexibility is limited
Solution Approach 1:
The drive unit is integrated within the limb structure of the dummy object, with the drive unit housing forming part of the limb itself. This nesting approach allows the drive unit to be contained within the dummy object's anatomy, maintaining a simple external appearance while enabling independent limb movement and enhanced flexibility for various test scenarios.
2Ease of operation
If the drive unit is arranged in the torso, then the limb movement is controlled centrally, but the weight distribution becomes unfavorable
Solution Approach 1:
The dummy object is divided into modular segments with independent drive units in each limb. This segmentation distributes the weight of drive units throughout the body rather than concentrating it in the torso, achieving favorable weight distribution while maintaining operational control through the control unit that can manage multiple independent limbs.
3Reliability
If the dummy object is used in collision scenarios, then realistic testing is achieved, but damage to the dummy object and vehicle occurs
Solution Approach 1:
The limb incorporates a casing made of soft material that protects internal components during collision scenarios. This pre-applied protective measure allows the dummy object to realistically simulate pedestrian collisions while reducing damage to both the dummy object and the test vehicle, enabling continued use after impact.
Solution Approach 2:
The connection between limb and torso is designed to be releasable under collision forces, allowing the limb to detach non-destructively during impact scenarios. This dynamic connection maintains structural integrity during normal operation while enabling damage-free separation during collisions, preserving the dummy object for continued testing.
4Ease of repair
If the limb is made detachable for repair, then damage recovery is easier, but the structural integrity is reduced
Solution Approach 1:
The dummy object is designed as a modular system with detachable limbs that can be easily removed and replaced. Each limb is a self-contained module with its own drive unit, allowing individual limb replacement without affecting the overall structural integrity of the torso or other limbs, thus maintaining strength while enabling easy repair.
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
This design enhances flexibility, reduces damage, and maintains operational integrity by optimizing weight distribution and enabling autonomous limb operation, facilitating realistic simulations without extensive repair.
Implementation Method 1
The limb (6) and the torso (2) are connected to one another in a non-permanent manner, in particular by way of a magnetic connection
Data Source
AI summary
The invention relates to a dummy object for testing the operationality of driver assistance systems or emergency braking systems in motor vehicles or rail vehicles. The dummy object is configured to be made to collide with a test object in a test of an emergency braking system, having a torso and at least one limb. The limb is coupled to the torso and is connected to be movable with respect to the torso by way of a first joint unit, and having at least one first electric drive unit. The first electric drive unit is configured to move the limb relative to the torso. It is provided according to the invention that the first electric drive unit forms an integrated structure with the limb.