EV Dual Cooling Layout for Battery and Motor Heat Management
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Solution Overview
Problem
Conventional cooling systems for electric vehicles are inadequate for cooling additional components beyond engine and operator components, necessitating a more comprehensive cooling solution.
Innovation Solution
A dual cooling system comprising a liquid cooling system with a radiator, coolant pumps, and an air cooling system with a compressor and evaporator coils, strategically positioned to efficiently cool various components of an electric vehicle, including battery modules, inverters, and electric motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional liquid cooling and air cooling systems are used separately for engine components and operator components, then the cooling system structure is simple, but the cooling coverage is insufficient for additional electric vehicle components
Solution Approach 1:
The patent applies multi-functionality by integrating both liquid cooling and air cooling systems into a single vehicle cooling platform. The liquid cooling system handles high-heat components (engine, electric motor, inverter) while the air cooling system handles moderate-heat components (battery modules, electronic control units), creating a universal cooling solution that adapts to different thermal requirements across all vehicle components.
Solution Approach 2:
The patent segments the cooling system into two distinct subsystems: liquid cooling for high-heat components and air cooling for moderate-heat components. This segmentation allows each subsystem to be optimized for its specific thermal management needs while maintaining overall system simplicity through modular architecture.
2Reliability
If multiple cooling systems are integrated to cool all vehicle components, then the cooling coverage is sufficient, but the system complexity increases
Solution Approach 1:
The patent applies local quality by matching different cooling methods to specific components based on their thermal characteristics. High-heat-generating components like the engine and electric motor receive liquid cooling for superior heat removal, while battery modules and electronic control units receive air cooling. This localized approach ensures each component receives appropriate cooling without requiring all components to be served by the more complex liquid cooling system.
Solution Approach 2:
The patent uses coolant as an intermediary substance in the liquid cooling system, circulating through radiators and heat exchangers to transfer heat from multiple high-heat components. This intermediary approach allows efficient heat management across multiple components while maintaining system simplicity compared to direct cooling methods for each component.
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
The dual cooling system effectively manages heat dissipation across multiple components, enhancing the performance and reliability of electric vehicles by maintaining optimal operating temperatures.
Implementation Method 1
a radiator to cool a coolant when the coolant flows through the radiator
Implementation Method 2
one or more evaporator coils
Implementation Method 3
an air cooling system with a compressor, a condenser, and one or more evaporator coils
Data Source
AI summary
A vehicle includes a chassis, a housing to house one or more battery modules, the housing being supported by the chassis, an electric motor to receive electrical power from the one or more battery modules, a liquid cooling system including a radiator to cool a coolant when the coolant flows through the radiator, and one or more coolant pumps connected to the radiator to circulate the coolant, and an air cooling system to cool the one or more battery modules. The air cooling system includes a compressor, a condenser, and one or more evaporator coils, and the radiator and the condenser are located adjacent to each other.