Wheel Loader Automated Bucket Control for Even Platform Loading
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Solution Overview
Problem
Conventional control systems for work vehicles require manual and complex operations to evenly load target objects, imposing a significant burden on operators and potentially affecting the performance of the target vehicle.
Innovation Solution
A wheel loader equipped with a vehicle body, lift arm, bucket, hydraulic actuator, pressure and posture sensors, and a controller that computes load distribution and controls the hydraulic actuator and drive unit to evenly distribute the load onto a loading platform by sectioning it into multiple sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual operation is used to evenly load target objects, then loading positions can be controlled, but operator burden increases and operation complexity increases
Solution Approach 1:
The wheel loader automatically determines its own position relative to the target vehicle using the external environment recognition sensor, and the controller automatically controls the discharge timing and position without requiring manual operation input from the operator, enabling the system to serve itself
Solution Approach 2:
The manual mechanical operation system is replaced with an automated sensor-based positioning system and electronic control system. The external environment recognition sensor detects the target vehicle position, and the controller processes this information to automatically control the hydraulic actuator for precise material discharge
2Manufacturing precision
If manual operation is used to load target objects multiple times, then loading positions can be adjusted, but time consumption increases
Solution Approach 1:
The system enables continuous loading operation by automatically controlling the discharge of target objects onto different sections of the loading platform in sequence. The controller continuously adjusts the discharge position based on real-time position information from the external environment recognition sensor, eliminating idle time between loading operations
Solution Approach 2:
The controller pre-determines the discharge positions and timing based on the detected target vehicle position and loading platform configuration. The system plans the loading sequence in advance, dividing the loading platform into multiple sections and determining the optimal discharge timing for each section before execution
3Loss of information
If conventional control systems are used, then loading guidance can be displayed, but operation complexity increases and expertise is required
Solution Approach 1:
The system automatically performs position determination, loading platform recognition, and discharge control without requiring the operator to manually process loading guidance information or make complex operational decisions. The controller self-manages the entire loading process based on sensor input
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
The wheel loader automates the loading process, reducing operator burden and preventing adverse effects on the target vehicle's performance by evenly distributing the load without manual intervention.
Implementation Method 1
a pressure sensor that detects a pressure of the hydraulic actuator
Implementation Method 2
a posture sensor that detects a posture of the bucket
Data Source
AI summary
Provided is a wheel loader capable of evenly loading a target object for loading onto a target area for loading with simple operation to thus mitigate a burden on an operator. The wheel loader 100 includes a travel device 120 that causes a vehicle body to travel, a drive device 150 that actuates a lift arm and a bucket, an area detection device 160 that detects a loading area, and a control device 170. The control device 170 recognizes the loading area on the basis of a detection result of the area detection device 160 and controls the travel device 120 and the drive device 150, so that the target object for loading contained in the bucket is distributed to be loaded in a plurality of different positions of the loading area while changing the position of the vehicle body in the front-back direction.