Refuse Vehicle Battery Control for Packing Actuator Cutoff

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Solution Overview

Problem

Existing refuse vehicles face challenges in efficiently managing battery power to ensure optimal operation of components like packing actuators, leading to potential battery discharge and reduced efficiency.

Innovation Solution

A battery management system that monitors the state of charge and controls the operation of components based on thresholds, initiating charging or discharge procedures to maintain the battery within a desired range, thereby preventing over-discharge and optimizing power usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the packing actuator operates continuously to maintain refuse vehicle functionality, then the operational capability is improved, but the battery discharges excessively reducing its lifespan

Engineering Contradiction:
Improveoperational capabilityVSAvoidbattery lifespan
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The controller continuously monitors the state of charge of the battery pack and uses this feedback to dynamically control the packing actuator operation, enabling the system to adapt its behavior based on real-time battery status and prevent over-discharge

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system preemptively limits packing actuator operation when the battery state of charge approaches critical thresholds, preventing over-discharge before it occurs and extending battery lifespan while maintaining operational capability

Inventive Principle:
Principle #10Preliminary action

2Use of energy by moving object

If the battery state of charge is monitored and controlled within thresholds, then the battery efficiency is improved, but the system complexity increases

Engineering Contradiction:
Improvebattery efficiencyVSAvoidsystem complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The battery management system autonomously monitors its own state of charge and automatically controls the packing actuator based on predefined thresholds, eliminating the need for external intervention and simplifying operation despite the added control logic

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250343286A1Battery maintenance and management system for a vocational vehicle
Publication Date: 2025.11.06 OSHKOSH CORPORATION
  • US20250343286A1 patent drawing
  • US20250343286A1 patent drawing
  • US20250343286A1 patent drawing

AI summary

A battery management system includes a battery pack and a controller in communication with the battery pack and a packing actuator of the refuse vehicle. The controller is configured to receive a state of charge of the battery pack, determine if the state of charge satisfies a lower threshold, in response to determining that the state of charge satisfies the lower threshold, prevent operation of the packing actuator, determine if the state of charge satisfies an upper threshold, and in response to determining that the state of charge satisfies the upper threshold, initiate operation of the packing actuator.