Segmented Coating for Contactless Rotational Speed Sensing
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Solution Overview
Problem
Conventional methods for detecting rotational speed in vehicles require separate, additional structures that are costly, heavy, and require complex assembly, increasing weight and installation space.
Innovation Solution
A structural element with a coating having segments spaced apart in the circumferential direction, allowing contactless detection of rotational speed using a sensor, eliminating the need for separate detection structures and reducing material and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate mechanical structures (such as toothing or cutouts) are used for rotational speed detection, then rotational speed can be detected, but the device complexity, weight, and manufacturing cost increase due to additional components and assembly steps
Solution Approach 1:
The patent combines the rotational speed detection function directly into the structural element by integrating coating segments into the main body. The coating segments are applied directly to the structural element's surface, eliminating the need for separate mechanical detection structures. This merging of functions reduces device complexity while maintaining rotational speed detection capability.
Solution Approach 2:
The patent replaces traditional mechanical structures (such as toothing, cutouts, or raised features) with a coating-based system. Instead of using mechanical protrusions or gaps to detect rotational speed, the invention uses coating segments that can be detected by a sensor, substituting mechanical detection with a coating-based magnetic or electrical detection method.
2Measurement precision
If separate mechanical structures are used for rotational speed detection, then rotational speed can be detected, but the weight of the structural unit increases due to additional materials
Solution Approach 1:
The detection function is merged into the structural element itself through the coating segments. By applying the coating directly to the main body, the patent eliminates the need for separate detection components, thereby reducing the overall weight of the structural unit while maintaining rotational speed detection capability.
Solution Approach 2:
The patent uses a thin coating layer applied to the structural element's surface to enable rotational speed detection. This thin film approach replaces bulky mechanical structures with a lightweight coating that provides the necessary detection functionality without significantly increasing weight.
3Measurement precision
If separate mechanical structures are used for rotational speed detection, then rotational speed can be detected, but the manufacturing cost increases due to additional working steps and separate production processes
Solution Approach 1:
The patent merges the production of the structural element and the detection feature into a single manufacturing process. The coating segments are applied to the main body during or after the main body production, eliminating the need for separate production processes and assembly steps for detection components, thereby reducing manufacturing cost.
Solution Approach 2:
The coating segments are applied to the main body in advance, either during the main body production process or as a preliminary step before final assembly. This preliminary application of the coating eliminates the need for subsequent assembly operations, reducing manufacturing complexity and cost.
4Measurement precision
If separate mechanical structures are used for rotational speed detection, then rotational speed can be detected, but the installation space requirement increases due to additional components
Solution Approach 1:
The patent merges the detection function into the structural element by integrating coating segments directly onto the main body. This integration eliminates the need for separate detection components and their associated mounting spaces, thereby reducing the overall installation space requirement.
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
Enables cost-effective, lightweight, and space-efficient detection of rotational speed by applying a coating directly to the structural element, reducing assembly complexity and weight.
Implementation Method 1
the segments, when the structural element is rotated about the axis of rotation relative to the component and thus relative to the sensor, influence a particular electrical and/or magnetic field which is able to be provided or is provided for example by the sensor
Implementation Method 2
the segments, when the structural element is rotated about the axis of rotation relative to the component and thus relative to the sensor, influence a particular electrical and/or magnetic field which is able to be provided or is provided for example by the sensor
Data Source
AI summary
The present disclosure relates to a component having a main body that is provided with a coating, wherein the coating has a plurality of coating segments which extend about an axis of rotation of the component extending in the circumferential direction of the component and at least partially spaced apart from one another, by means of which coating segments a rotational speed of the component rotating about the axis of rotation can be detected.