Work Machine Push Level Control for Battery Damage Management
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Solution Overview
Problem
Work machines often consume excessive power during aggressive operations, leading to inefficient energy use and degradation of electrical systems, while underutilizing power during less demanding tasks, without considering environmental conditions and operation rates.
Innovation Solution
A work machine system with a human-machine interface (HMI) that allows operators to select a push level, calculating an accumulated damage score based on factors like material type, environmental conditions, and operation aggressiveness, enabling strategic power management and battery life optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If aggressive digging operations are performed to increase work speed, then productivity is improved, but power consumption increases and electrical system degradation occurs
Solution Approach 1:
The system dynamically adjusts operational parameters based on real-time conditions. The electronic controller monitors environmental factors (temperature, moisture content, consistency) and automatically modulates the aggressiveness of digging operations to optimize the balance between productivity and power consumption, preventing both over-consumption and underutilization of available power.
Solution Approach 2:
The system incorporates feedback mechanisms where the electronic controller continuously monitors power consumption levels, environmental conditions, and operational parameters. Based on this feedback, the controller adjusts operational intensity in real-time, reducing aggressiveness when power thresholds are approached and increasing it when power availability and environmental conditions permit, thereby resolving the contradiction between productivity and energy use.
2Productivity
If aggressive digging operations are performed to complete work faster, then productivity is improved, but accumulated damage to the electrical system increases
Solution Approach 1:
The system performs preliminary assessment of environmental conditions (temperature, moisture content, consistency) before initiating aggressive operations. The electronic controller pre-calculates the appropriate operational intensity based on predicted power consumption and potential damage accumulation, preventing excessive stress on the electrical system before it occurs.
Solution Approach 2:
The electronic controller continuously monitors accumulated damage metrics and adjusts operational aggressiveness in real-time. When damage thresholds are approached, the system automatically reduces operational intensity, creating a feedback loop that protects the electrical system while maintaining optimal productivity, thus resolving the contradiction between work completion rate and electrical system durability.
3Reliability
If power is underutilized during less demanding tasks, then electrical system durability is improved, but productivity decreases
Solution Approach 1:
The system dynamically scales operational intensity to match actual environmental conditions and power availability. During less demanding tasks with favorable environmental conditions (warm temperature, low moisture content), the electronic controller automatically increases operational aggressiveness to maximize productivity, while during challenging conditions it reduces intensity to preserve electrical system durability, thus resolving the contradiction between reliability and productivity.
Data Source
AI summary
A work machine may include a machine frame supported on a traction system, an implement supported by the machine frame and operable to perform work, an electrical power supply system configured for powering the traction system and the implement, and an electronic controller configured for controlling operation of the work machine and for calculating an accumulated damage score for a plurality of work cycles. The electronic controller may include a human-machine interface comprising a push level selector allowing an operator to select a push level to be used to perform the plurality of work cycles. The electronic controller may be configured to select a factor based on the selected push level to be used to calculate the accumulated damage score.