Engineering Vehicle Cooling Layout for On-Demand Multi-Subsystem Control

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Solution Overview

Problem

Existing engineering vehicle cooling systems fail to meet the diverse cooling requirements of engines, drivetrains, and hydraulic systems, often requiring complex structures with multiple motors and excessive space, while existing systems do not achieve optimal temperature control for efficient operation.

Innovation Solution

An integrated cooling system with independent fans for each component (engine, hydraulic, and drivetrain) controlled by PID methods to maintain optimal temperatures, using a compact design with shared cooling components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple independent fans are used for each cooling component (engine, hydraulic system, drivetrain), then the cooling performance and temperature control precision are improved, but the device complexity and space occupation increase

Engineering Contradiction:
Improvetemperature control precisionVSAvoidcooling system structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The cooling system is segmented into three independent subsystems, each with its own electronic fan (first electronic fan for engine, second electronic fan for hydraulic system, third electronic fan for drivetrain). This segmentation allows independent temperature control for each component, achieving precise temperature management while maintaining system modularity and manageable complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The electronic fans are designed with multi-functionality, where each fan can serve its primary cooling component while also providing auxiliary cooling to other components. For example, the first electronic fan primarily cools the engine but can also assist in cooling the hydraulic system or drivetrain when needed, reducing the need for dedicated fans for every component and simplifying the overall system structure.

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

2Adaptability or versatility

If multiple independent fans are used for each cooling component, then the on-demand cooling capability is improved, but the energy consumption and noise increase

Engineering Contradiction:
Improveon-demand cooling capabilityVSAvoidenergy consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The cooling system employs dynamic control through independent electronic fans for each component, allowing the system to adapt cooling capacity to actual thermal demands. Each fan's speed and operation can be independently adjusted based on real-time temperature monitoring of its associated component, enabling on-demand cooling that consumes energy only when and where needed, rather than operating all fans continuously at fixed speeds.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates temperature detection elements that continuously monitor the thermal state of each cooling component (engine, hydraulic system, drivetrain). This feedback information is used to dynamically control the operation of corresponding electronic fans, activating or adjusting fan speeds based on actual cooling requirements. This feedback mechanism ensures energy is consumed only when cooling is needed, optimizing energy efficiency while maintaining on-demand cooling capability.

Inventive Principle:
Principle #23Feedback

3Device complexity

If a single fan is used to cool all components, then the device complexity is reduced, but the cooling performance and temperature control capability deteriorate

Engineering Contradiction:
Improvecooling system structureVSAvoidcooling performance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The cooling system is divided into three independent subsystems with dedicated electronic fans for the engine (first electronic fan), hydraulic system (second electronic fan), and drivetrain (third electronic fan). This segmentation ensures that each component receives focused cooling attention, maintaining high cooling performance and reliability for each subsystem while keeping the overall system structure organized and manageable through modular design.

Inventive Principle:
Principle #1Segmentation

4Reliability

If too many motors are used to drive multiple fans, then the cooling performance is improved, but the device complexity and space occupation become excessive

Engineering Contradiction:
Improvecooling performanceVSAvoidcooling system space
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

Each electronic fan is designed with universal cooling capability, allowing it to cool its primary assigned component while also providing auxiliary cooling to other components when required. This multi-functionality reduces the total number of fans and motors needed in the system, thereby reducing space occupation while maintaining comprehensive cooling performance across all components.

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

Solution Approach 2:

The cooling functions for multiple components are merged into a coordinated system where three electronic fans work in conjunction rather than as completely separate systems. The fans can operate independently or in combination, and their control systems can coordinate to optimize cooling efficiency. This merging approach reduces overall space requirements compared to having completely independent cooling systems for each component, while still maintaining reliable cooling performance.

Inventive Principle:
Principle #5Merging (Combining)

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

Achieves on-demand cooling with flexible control, reducing noise and energy consumption by optimizing fan operation based on temperature and pressure detection, ensuring efficient operation of all components.

Implementation Method 1

the engine drivingly connected to the cooling fan to cool the heat dissipation assembly

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 2

the first electronic fan is configured to cool the hydraulic system; a drivetrain cooling system including a drivetrain and a second electronic fan configured to cool the drivetrain

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

a water-cooled radiator mounted outside the engine, the cooling fan being disposed adjacent to the water-cooled radiator to cool it

Methodology Applied
Scientific EffectHeat Exchanger: Heat Exchanger

Data Source

PatentEP4641050A1Engineering vehicle cooling system, engineering vehicle and cooling method therefor
Publication Date: 2025.10.29 XUZHOU CONSTR MASCH GRP CO LTD
  • EP4641050A1 patent drawingFigure 1
  • EP4641050A1 patent drawingFigure 2~3
  • EP4641050A1 patent drawingFigure 4~5

AI summary

This disclosure relates to the field of engineering machinery and provides an engineering vehicle cooling system that is used for realizing on-demand cooling of the engineering vehicle. The engineering vehicle cooling system includes an engine cooling system (1), a hydraulic cooling system (2), a drivetrain cooling system (3) and an air-conditioning cooling system (4). The engine cooling system (1) includes an engine (11), a cooling fan (12) and a heat dissipation assembly (13). The engine (11) is drivingly connected to the cooling fan (12). The hydraulic cooling system (2) includes a hydraulic system (21) and a first electronic fan (22) configured to cool the hydraulic system (21). The drivetrain cooling system (3) includes a drivetrain (31) and a second electronic fan (32). The air-conditioning cooling system (4) includes an air-conditioning system (41) and a third electronic fan (42). The first electronic fan (22), the second electronic fan (32) and the third electronic fan (42) are distributed around the cooling fan (12), realizing on-demand cooling of the engine, the hydraulic system, the drivetrain and the air-conditioning system. This disclosure further provides an engineering vehicle and a cooling method thereof.