Efficient Cooling for Electric Vehicles: Multi-Loop System
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Summary
Problems
Current electric vehicle cooling systems are inefficient, relying heavily on air conditioning and adding wind resistance, which reduces mileage range and energy efficiency, and lack effective control over temperature balancing between battery cells.
Innovation solutions
An intelligent multiple-loop cooling system with internal cooling pipelines for the battery pack and electric drive module, featuring multiple loops connected by electric pumps, pass-through valves, three-way valves, and a heat exchanger, allowing for dynamic temperature balancing, cooling, and heating based on temperature sensors and vehicle controller adjustments.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If air conditioning cooling is used for battery pack cooling, then cooling effect is achieved, but mileage range is reduced
Why choose this principle:
The cooling system is divided into multiple independent loops (battery cooling loop, motor cooling loop, cabin cooling loop) that can operate independently or in combination. Each loop has its own cooling paths and control mechanisms, allowing targeted cooling without unnecessarily engaging the air conditioning system for battery cooling when other cooling paths are available.
Principle concept:
If air conditioning cooling is used for battery pack cooling, then cooling effect is achieved, but mileage range is reduced
Why choose this principle:
The cooling system uses a multi-functional design where a single coolant circulation system serves multiple purposes: battery pack cooling, motor cooling, and cabin air conditioning. The system can dynamically allocate cooling capacity to different components based on their thermal needs, reducing reliance on air conditioning for battery cooling and thereby preserving mileage range.
Application Domain
Data Source
AI summary:
An intelligent multiple-loop cooling system with internal cooling pipelines for the battery pack and electric drive module, featuring multiple loops connected by electric pumps, pass-through valves, three-way valves, and a heat exchanger, allowing for dynamic temperature balancing, cooling, and heating based on temperature sensors and vehicle controller adjustments.
Abstract
An intelligent multiple-loop electric vehicle cooling system includes a battery pack, an electric drive module, a battery radiator, an electric drive module radiator, electric pumps, pass-through valves, three-way valves, a PTC heater, a heat exchanger. The cooling system is provided with two electric pumps, two pass-through valves, and three three-way valves that are connected through pipelines to form multiple loops. Compared with the prior art, by means of the present invention, multiple three-way valves and pass-through valves are disposed, to connect pipelines to form loops meeting different cooling or heating requirements. These loops are selectively opened or closed according to features and working states of a battery pack and an electric drive module of an electric vehicle, to ensure temperature balance of the electric vehicle and efficient operation of the electric vehicle.