Refuse Vehicle Operational Modes for Route-Specific Hydraulic Control

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Solution Overview

Problem

Refuse vehicles face inefficiencies due to the need to perform various tasks with components that are not optimized for specific operations, leading to manual adjustments and potential errors.

Innovation Solution

A refuse vehicle equipped with a processing unit that can select and execute multiple operational modes based on route type, waste type, and environmental conditions, automatically adjusting performance parameters of the motor and hydraulic system through a human-machine interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual adjustments are made for different operational tasks, then operational flexibility is maintained, but operational efficiency decreases and error potential increases

Engineering Contradiction:
Improveoperational efficiencyVSAvoidmanual interaction requirement
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system performs self-adjustment of performance parameters automatically based on detected operating conditions. The processing unit monitors route type, waste type, and environmental conditions, then autonomously adjusts motor and hydraulic system parameters without requiring manual operator intervention, enabling the system to serve itself

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically changes performance parameters of the motor and hydraulic system based on detected operating conditions. Different operational modes (e.g., residential vs. commercial routes, different waste types) trigger automatic adjustment of parameters such as motor power output, hydraulic flow rate, and system pressure to optimize performance for each specific task

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If components are designed for general-purpose use, then vehicle versatility is maintained, but task-specific performance optimization is reduced

Engineering Contradiction:
Improvetask-specific optimizationVSAvoidoperational efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The system transitions from static, fixed performance settings to dynamic, adjustable parameters. The processing unit automatically modifies motor and hydraulic system performance in real-time based on operational mode, route type, and environmental conditions, allowing the same physical components to adapt their characteristics to match task requirements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters such as motor power output, hydraulic flow rate, and system pressure based on detected conditions. For example, residential routes may use lower power settings compared to commercial routes, and different waste types trigger appropriate parameter adjustments to optimize collection efficiency

Inventive Principle:
Principle #35Parameter changes

3Productivity

If automated operational modes are implemented, then operational efficiency is improved, but system complexity increases

Engineering Contradiction:
Improveoperational efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

A single processing unit performs multiple functions: detecting route type, identifying waste type, monitoring environmental conditions, selecting appropriate operational modes, and adjusting motor and hydraulic system parameters. This multi-functional approach consolidates complexity into one centralized control system rather than distributing it across multiple separate systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The processing unit is pre-programmed with multiple operational modes and performance parameter profiles for different task types. When a specific operating condition is detected, the system retrieves and applies the pre-configured parameters from memory, avoiding the need for complex real-time calculations and reducing control system complexity

Inventive Principle:
Principle #10Preliminary action

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

Enhances operational efficiency by optimizing vehicle performance for different tasks, reducing manual interaction, and minimizing errors through automated adjustments.

Implementation Method 1

The lifting system is movable between a first position and a second position vertically offset from the first position using a hydraulic system

Methodology Applied
Scientific EffectHydraulic system: Hydraulic Press

Data Source

PatentUS20250346425A1Operational modes for a refuse vehicle
Publication Date: 2025.11.13 OSHKOSH CORPORATION
  • US20250346425A1 patent drawing
  • US20250346425A1 patent drawing
  • US20250346425A1 patent drawing

AI summary

A refuse vehicle has a chassis supporting a plurality of wheels, as well as a motor. A vehicle body is also supported by the chassis and defines a receptacle for storing refuse. A lifting system is coupled to the vehicle body and is movable between a first position and a second position vertically offset from the first position using a hydraulic system. The refuse vehicle also has a processing unit in communication with the lifting system and the motor. The processing unit is configured to access and execute a plurality of preset operational modes stored within a memory to adjust performance parameters of the refuse vehicle. The operational modes include at least two different operational modes corresponding to different route types.