Rotation Sensor Device for Single-Suspended Wheel Steering
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Solution Overview
Problem
Existing single-suspended-wheel steering systems for agricultural vehicles face challenges in accurately detecting steering angles, leading to unreliable solutions in demanding environments, particularly when complex sensor systems fail or require cumbersome mechanical components.
Innovation Solution
A single-suspended-wheel steering system featuring a mechanical suspension with a quadrilateral structure, a pin-based joint group allowing rotation, and an integrated rotation sensor device capable of detecting wheel carrier rotation around an axis, enabling precise and reliable steering angle detection without significant design or manufacturing distortions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complex sensor system is used to detect steering angle, then detection capability is improved, but reliability deteriorates due to breakage in demanding agricultural environments
Solution Approach 1:
The patent replaces complex electronic sensor systems with a mechanical solution. A detection element is mechanically coupled to the wheel carrier through a linkage mechanism that translates the steering angle into a corresponding position of the detection element, which can then be read by a simple sensor. This mechanical substitution eliminates the reliability issues of complex electronic sensors while maintaining detection capability.
Solution Approach 2:
The patent introduces a mechanical intermediary (detection element and linkage mechanism) between the wheel carrier and the sensor system. This intermediary mechanically transmits the steering angle information to the sensor, allowing simple and reliable detection without requiring complex sensors to directly measure the steering angle.
2Measurement precision
If complex mechanical components are added to enable steering angle detection, then detection capability is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent designs the detection element and its linkage to serve multiple functions: it maintains the mechanical connection for shock absorption and steering while simultaneously providing steering angle detection. This multi-functionality avoids adding separate complex mechanical components solely for detection purposes.
Solution Approach 2:
The detection mechanism utilizes the existing mechanical movements and structures of the single-suspended-wheel system. The detection element passively follows the steering motion through the existing linkage, converting steering angle into detectable position without requiring additional power sources or active components.
3Measurement precision
If complex mechanical components are added for steering angle detection, then detection capability is improved, but overall dimensions and manufacturing steps increase
Solution Approach 1:
The patent merges the detection function with the existing mechanical structure. The detection element is integrated into the wheel carrier assembly, and its linkage utilizes existing mounting points and structural elements. This merging approach allows detection capability to be added without increasing overall dimensions or requiring separate manufacturing processes.
Data Source
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AI summary
A single-suspended-wheel steering system (5) of a vehicle for agricultural use. The system (5) having a wheel carrier (51) and an arm (52) engaged to each other via a joint group (1). The joint group (1) comprises: i) a pin (10) that extends along a pivot axis (P-P) between a first end (11) and a second spherical end (12); ii) a rotation device (20) comprising a central body (21) in which is fitted and integrally connected the second spherical end (12) of the pin (10) and rotation means (25) suitable to allow the free rotation of the central body (21) around the axis of rotation (R-R); iii) a rotation 1 sensor device (30) comprising a detection element (31) suitable to detect the angle of rotation of the central body (21) around said axis of rotation (R-R).