Inverted Suspension Wheel Speed Sensor Layout
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Solution Overview
Problem
Existing vehicles with upright suspensions face challenges in protecting wheel speed sensors and their wires from interference with telescopic elements during operation, leading to potential damage and reduced flexibility in layout.
Innovation Solution
The implementation of an inverted suspension system with specific layouts for wheel speed sensors and sensor wires, including the use of restrictors to prevent deformation and interference, allows for enhanced protection and flexibility in positioning, ensuring the sensors and wires remain clear of telescopic elements during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an upright suspension system is used with a wheel speed sensor protected by a cover member, then the sensor is protected from external factors, but the sensor wire may interfere with telescopic elements during operation
Solution Approach 1:
The patent inverts the traditional suspension configuration from upright to inverted suspension. This fundamental inversion changes the spatial relationship between the sensor wire and telescopic elements, eliminating the interference problem that exists in upright suspension systems while maintaining sensor protection
2Adaptability or versatility
If the sensor wire is allowed to move freely with suspension operation, then the layout is flexible, but the wire may contact telescopic elements causing damage
Solution Approach 1:
The patent introduces a guide structure as an intermediary element between the sensor wire and the suspension system. This guide structure channels and directs the sensor wire along a predetermined path, allowing the wire to accommodate suspension movement while preventing contact with telescopic elements
Solution Approach 2:
The sensor wire is pre-positioned and guided along a predetermined path before suspension operation begins. This preliminary positioning ensures that during suspension movement, the wire follows the planned trajectory and avoids contact with moving components
3Measurement precision
If the wheel speed sensor is positioned close to the wheel for accurate detection, then measurement precision is improved, but the sensor may interfere with shock absorber operation
Solution Approach 1:
The patent positions the wheel speed sensor in a location that utilizes three-dimensional space more effectively. By considering the vertical dimension and the inverted suspension geometry, the sensor can be placed close to the wheel for accurate detection while the inverted configuration prevents interference with shock absorber movement
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 configuration effectively prevents interference between wheel speed sensors and telescopic elements, enhances the degree of freedom in layout, and maintains sensor wire stability, even during maximum suspension extension, thereby improving the vehicle's operational efficiency and compactness.
Implementation Method 1
shock absorbers that support the two front wheels so as to be displaced in the up-and-down direction of the body frame relative to the linkage to absorb shocks from a road surface
Implementation Method 2
The upright suspension attenuates the displacement of the front wheel in the up-and-down direction relative to the linkage and the body frame by allowing the outer tube and the inner tube to extend and contract in an extending and contracting axis thereof
Data Source
AI summary
A vehicle includes an up-side-down suspension and a wheel speed sensor and a sensor wire. A left lower restrictor is fixed to a left inner connector or a member that is displaced relatively together with the left inner connector in association with the operation of a left shock absorber above a left wheel speed sensor as seen from the direction of a left wheel axis. At least a portion of the left wheel speed sensor is situated farther inwards than an outer edge of a left front inner tube in relation to a left-and-right direction, is situated below a left lower imaginary line when the left shock absorber extends to its maximum extent, and is provided on the left inner connector between a left front imaginary line and a left rear imaginary line when seen from the direction of the left wheel axis. The left sensor wire extends so as to intersect the left lower imaginary line when seen from the direction of the left wheel axis.