Motor Grader Saddle Linkage Position Measurement
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Solution Overview
Problem
Current grader technologies lack accurate measurement and positioning systems for the saddle linkage, which are crucial for precise operation and efficiency, especially in motor graders with complex movement mechanisms.
Innovation Solution
A motion measurement system is integrated into the grader, comprising sensors and indicators that provide positional data to a controller, allowing for precise determination of the saddle linkage's position and movement, using hall effect sensors, inductive sensors, light sensors, and camera systems to encode and decode positional states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a motion measurement system with sensors and indicators is integrated into the grader, then measurement precision of saddle linkage position is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical position measurement methods with electronic sensors (Hall effect sensors, inductive sensors, light sensors) and camera systems that use magnetic fields, electromagnetic induction, optical detection, and image processing to determine saddle linkage position, thereby achieving high measurement precision while reducing mechanical complexity
Solution Approach 2:
The patent introduces indicators (magnetic indicators, inductive indicators, optical indicators) as intermediaries between the saddle linkage components and the sensors. These indicators are attached to moving parts and enable non-contact detection of position, simplifying the overall measurement system while maintaining high precision
2Reliability
If multiple sensors and indicators are used to track saddle linkage components, then measurement reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensing modalities (magnetic field sensing, electromagnetic induction, optical detection, and visual imaging) into an integrated motion measurement system that cross-validates position data from multiple sources, thereby improving measurement reliability while managing system complexity through unified control
Solution Approach 2:
The patent implements feedback mechanisms where sensors continuously monitor indicator positions and provide real-time position data to the controller, enabling verification and correction of measurements, which enhances reliability while using a manageable number of sensors
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 system enables accurate and reliable measurement of the saddle linkage's position, enhancing operational efficiency and precision in grading operations by providing real-time positional feedback and kinematic analysis.
Implementation Method 1
at least one sensor of the motion measurement system may include three hall effect sensors that are spaced from one another and the lock pin aperture
Implementation Method 2
at least one sensor of the motion measurement system may include at least one inductive sensor that is spaced from the lock pin aperture
Implementation Method 3
at least one sensor of the motion measurement system may include at least one light sensor that is spaced from the lock pin aperture
Data Source
AI summary
A grader includes a chassis, a saddle linkage, and a motion measurement system. The saddle linkage is supported for movement relative to the chassis and includes a mount movably coupled to the chassis, first and second arms each movably coupled to the mount, and a crossbar movably coupled to each of the first and second arms. The mount has a lock pin aperture, each of the first and second arms has a locking hole, and the crossbar has a plurality of locking holes. The lock pin aperture may be aligned with one locking hole of the first arm, the second arm, or the crossbar to position the saddle linkage in use of the grader. The motion measurement system is coupled to the saddle linkage and configured to measure movement or position of one or more components of the grader in use thereof.