Dynamic Load Distribution for Off-Highway Vehicles
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Solution Overview
Problem
Off-highway vehicles, such as agriculture vehicles, face inefficiencies in load distribution adjustments due to the need for manual changes of static counterweights, which require stopping and relocating the vehicle, leading to time and fuel wastage, especially when performing tasks that alter traction force requirements.
Innovation Solution
A vehicle equipped with a sensor unit to detect load on axles, an actuator system to move movable weights, and a control unit to dynamically adjust load distribution in real-time, allowing for automatic optimization of traction force without the need for manual adjustments or relocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static counterweights are used to adjust load distribution, then optimal traction force can be achieved for specific tasks, but the vehicle must stop and be relocated to a garage or farmyard for adjustment, resulting in time and fuel wastage
Solution Approach 1:
The patent applies the dynamics principle by replacing static counterweights with a movable weight that can be dynamically repositioned along the vehicle's longitudinal axis. The weight is mounted on a movable platform that can be actuated by hydraulic or electric actuators, allowing the load distribution to be adjusted in real-time while the vehicle is in operation, eliminating the need to stop and relocate the vehicle for adjustments
Solution Approach 2:
The patent implements self-service through an automated control system that includes load sensors on the axles, a control unit that processes sensor signals, and actuators that automatically reposition the movable weight. The system autonomously adjusts the load distribution based on sensor feedback without requiring manual intervention, operators driving to garages, or external assistance, thereby saving time and fuel
2Adaptability or versatility
If static counterweights are manually changed according to a specific table, then load distribution can be optimized for different agriculture tasks, but the adjustment procedure requires the vehicle to be parked at a specific location, reducing operational efficiency
Solution Approach 1:
The system enables dynamic adaptation to different agriculture tasks by allowing continuous adjustment of the movable weight's position along the longitudinal axis while the vehicle is operating. The control unit receives signals from load sensors and automatically repositions the weight to optimize load distribution for current task requirements, eliminating the need to park at specific locations for adjustments
Solution Approach 2:
The patent changes the physical state of the weight from static to movable, transforming the load distribution adjustment from a discrete, location-dependent process to a continuous, on-the-go parameter adjustment. The movable weight can be repositioned to different locations along the vehicle's longitudinal axis, providing versatile load distribution optimization for various agriculture tasks without interrupting operations
3Reliability
If the vehicle stops to adjust counterweights, then load distribution can be optimized, but precious time that could be spent on performing agriculture tasks is wasted
Solution Approach 1:
The patent ensures continuity of useful action by enabling load distribution adjustment to occur while the vehicle is in motion and performing agriculture tasks. The automated system with load sensors and actuators allows the movable weight to be repositioned without stopping the vehicle, maintaining continuous task performance while optimizing traction force as needed
Solution Approach 2:
The automated control system performs the load distribution optimization self-service function, using load sensors to detect current distribution and actuators to reposition the movable weight automatically. This eliminates the need for operators to stop the vehicle and manually adjust counterweights, keeping the vehicle productive throughout the adjustment process
Data Source
AI summary
The present disclosure relates to a vehicle, in particular an off-highway vehicle, comprising a first axle and a second axle and a sensor unit comprising at least one load sensor configured to produce a load sensor signal indicative of a load on at least one of the first axle and the second axle. The vehicle further comprises a movable weight configured to be moved relative to the first axle and to the second axle, an actuator system configured to move the movable weight relative to the first axle and to the second axle, and a control unit configured to control the actuator system based at least on the load sensor signal.