Front Wheel Speed Sensor Nesting in Telescopic Shock Absorber
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Solution Overview
Problem
The existing vehicles with a body frame that can lean and two front wheels aligned left and right face challenges in maintaining compact size when mounting a front wheel rotation speed detecting device, as the enlargement of the vehicle's size is restricted by the need for space and interference avoidance with other components.
Innovation Solution
The front wheel rotation speed detecting device is positioned outside the dead space between the telescopic elements, with parts of the detecting portion located in areas that overlap or are within the moving space of the telescopic elements, thereby reducing the moving space and maintaining a compact vehicle size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If the front wheel rotation speed detecting device is mounted on the vehicle, then the rotation speed detection function is improved, but the vehicle size is enlarged
Solution Approach 1:
The detecting portion of the front wheel rotation speed detecting device is nested within the moving space of the telescopic elements. Specifically, the detecting portion is positioned within the area swept by the telescopic elements during their extension and retraction motion, effectively placing the detection device inside the existing structural envelope without requiring additional external space.
Solution Approach 2:
The detecting portion is positioned in a specific spatial relationship with the telescopic elements, utilizing the three-dimensional space efficiently. By positioning the detecting portion within the moving space of the telescopic elements and ensuring it rotates together with the front wheel, the design achieves compact integration without interfering with the telescopic elements' linear motion path.
2Volume of moving object
If the detecting portion is positioned within the moving space of the telescopic elements, then the vehicle size is kept compact, but the detecting portion may interfere with the telescopic elements
Solution Approach 1:
The detecting portion is designed to rotate together with the front wheel, making its position dynamic rather than fixed. This rotational motion allows the detecting portion to occupy different positions within its designated area, avoiding static interference with the telescopic elements while maintaining compact vehicle dimensions.
Solution Approach 2:
The space around the front wheel is segmented into different functional zones. The detecting portion is assigned to rotate within a specific area that is defined by the front imaginary line and rear imaginary line of the shock absorbing device, while the telescopic elements operate in their own linear path. This spatial segmentation prevents interference between the rotational motion of the detecting portion and the linear motion of the telescopic elements.
Data Source
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AI summary
At least a portion of a detection unit (822, 812) of a front wheel rotation speed detection device (82, 81) is supported by a front telescopic element (342, 332, 341, 331) of one shock-absorbing device (33, 34), and is located, when viewed in the direction of the wheel axis (Z2, Z1): (a) in a region sandwiched between a front imaginary line (I) that is parallel to the steering axis (Y2, Y1) and that passes through a front end (34A, 33A) of the shock-absorbing device (34, 33) in a direction (M) perpendicular to the wheel axis (Z2, Z1) and to the steering axis (Y2, Y1), and a rear imaginary line (J) that is parallel to the steering axis (Y2, Y1) and that passes through a rear end (34B, 33B) of the shock-absorbing device (34, 33); (b) in a region inside the outer shape (K) of a wheel (32b, 31b); and (c) in a region outside a region (L) between the front and rear telescopic elements (342, 332, 341, 331).