Multi-Axle Work Vehicle Axle Load Control
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Solution Overview
Problem
Current control systems for multi-axle work vehicles are unable to properly balance axle loading, leading to limited engine torque output during normal operation due to potential axle load imbalances, which can result in inefficient use of engine power.
Innovation Solution
A system and method that includes load sensors monitoring loads transmitted through pivot pins of track assemblies, with a controller estimating axle loads and adjusting engine torque output based on these measurements to balance loading between axle assemblies, thereby preventing damage to drivetrain components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional control systems limit engine torque output to a pre-determined torque limit, then axle load imbalances are prevented, but engine power utilization is significantly reduced
Solution Approach 1:
The system dynamically adjusts the engine torque output limit based on real-time axle load conditions. Sensors monitor axle loads continuously, and the control system modifies the torque limit accordingly - allowing higher torque when loads are balanced and reducing torque when imbalances are detected. This replaces the static pre-determined torque limit with a dynamic adjustment mechanism that adapts to operating conditions.
Solution Approach 2:
The system implements a feedback loop where sensors continuously monitor axle loads and transmit this information to the control system. The control system processes this feedback and adjusts the engine torque output limit in response to the measured axle load conditions. This closed-loop control enables the system to maintain reliability while optimizing power utilization based on actual operating conditions.
2Power
If sensors and control systems are added to monitor and balance axle loads, then engine power utilization is optimized, but device complexity increases
Solution Approach 1:
The control system is designed to perform multiple functions: monitoring axle loads, calculating load imbalances, determining appropriate torque limits, and controlling engine output. By making the control system multi-functional, the patent reduces the need for separate dedicated components for each function, thereby managing complexity while achieving comprehensive axle load management and power optimization.
Solution Approach 2:
The system uses the vehicle's existing sensor infrastructure and control architecture to implement axle load monitoring and torque management. Rather than requiring completely new dedicated systems, the invention leverages available components and integrates axle load sensing into the existing control framework, reducing the overall complexity increase.
Data Source
AI summary
A method for controlling a multi-axle work vehicle based on axle loading may generally include monitoring a load associated with loads transmitted through a pivot pin of a track assembly of the work vehicle, wherein the track assembly is configured to be rotatably coupled to an engine of the work vehicle via an axle assembly. In addition, the method may include estimating an axle load applied through the axle assembly based on the monitored load and providing a control output for the work vehicle based on the estimated axle load.