Autonomous Dump Body Boost Pressure Control for Failure Recovery

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Solution Overview

Problem

Existing autonomous machine control systems for mobile machines, such as haul trucks, fail to effectively manage dump body operations, particularly in high-wall operations, where over-fill situations can lead to improper functioning and productivity losses.

Innovation Solution

A system that includes a processor and memory to receive information on machine operations, determine failure conditions, transmit notifications, and apply boost pressure to the dump body to assist in lowering, using a hoist boost solenoid to manage increased pressure for actuation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the dump body is manually controlled using traditional electro-pneumatic systems, then the system structure is simple, but the system cannot autonomously detect or respond to failure conditions such as over-fill situations

Engineering Contradiction:
Improveautonomous dump body controlVSAvoidcontrol system complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The control system autonomously monitors its own operation and automatically responds to failure conditions without external intervention. The processor detects when the dump body fails to lower properly and automatically activates the boost pressure system, enabling the system to self-diagnose and self-correct operational failures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors operational parameters of the dump body and uses this feedback to determine failure conditions. Sensors detect the position and operation status of the dump body, providing real-time feedback to the processor which then adjusts control signals accordingly to maintain proper operation.

Inventive Principle:
Principle #23Feedback

2Productivity

If the dump body operates in over-fill situations without autonomous management, then the system structure remains simple, but productivity is lost due to improper functioning

Engineering Contradiction:
Improvedumping operation efficiencyVSAvoiddump body operation reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system proactively applies boost pressure before the dump body operation fails completely. By detecting early signs of failure conditions such as over-fill situations, the system activates additional pressure in advance to prevent complete operational failure and ensure the dump body can still lower properly.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system prepares compensatory measures in advance by having the boost pressure system ready to activate. When a failure condition is detected, the additional pressure source is immediately engaged to cushion against the potential operational failure and ensure continuous productive operation.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If traditional dump control systems are used, then the device complexity is low, but the system cannot recover from failure conditions and may cause machine damage

Engineering Contradiction:
Improvefailure recovery capabilityVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control system autonomously monitors its own operation and automatically responds to failure conditions without external intervention. The processor detects when the dump body fails to lower properly and automatically activates the boost pressure system, enabling the system to self-diagnose and self-correct operational failures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The boost pressure system acts as an intermediary mechanism that mediates between the control system and the dump body operation. When failure conditions are detected, this intermediate pressure source intervenes to correct the operational issue and prevent damage to the machine.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 failure recovery for high-wall dumping operations by ensuring the dump body can lower properly, even in over-fill situations, thereby maintaining productivity and preventing damage to the machine.

Implementation Method 1

cause a boost pressure to be applied to the dump body of the hauling machine

Methodology Applied
Scientific EffectPressure increase: Pressurisation

Data Source

PatentUS9663012B2Managing dump body controls on automonous machines
Publication Date: 2017.05.30 CATERPILLAR INC
  • US9663012B2 patent drawing
  • US9663012B2 patent drawing
  • US9663012B2 patent drawing

AI summary

System and methods for managing operations of one or more machines are disclosed. One method includes receiving first information relating to an operation of a dump body of a hauling machine operating in at least a partially autonomous manner, determining a failure condition of the operation based at least on the received first information, transmitting a notification relating to the failure condition, and causing a boost pressure to be applied to the dump body of the hauling machine.