Integrated thermal management system for vehicles
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Solution Overview
Problem
Electric vehicles face reduced range and performance due to the lack of an efficient thermal management system for heating and cooling, which affects battery performance and overall energy efficiency.
Innovation Solution
An integrated thermal management system that includes separate cooling lines for the electronic driving unit and high-voltage battery, a refrigerant line for air conditioning, and a bypass line for the chiller, allowing for independent control of cooling and heating, with radiators and pumps for efficient coolant circulation and mixing, and a water heater for high-voltage battery heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electric vehicles use an electric heater instead of engine waste heat, then the vehicle can operate without an engine, but the range is reduced due to higher energy consumption
Solution Approach 1:
The system converts waste heat from the electronic driving unit and high-voltage battery into useful heating energy for the vehicle interior. The heat exchanger captures thermal energy that would otherwise be wasted during battery charging or motor operation, transforming it into heating capability and reducing the need for electric heater operation.
Solution Approach 2:
The thermal management system serves multiple functions: it cools the high-voltage battery during charging, heats the vehicle interior using waste heat, and provides climate control. The same heat exchanger and coolant circulation system handle both cooling and heating operations, eliminating the need for separate heating and cooling systems.
2Ease of operation
If separate cooling lines are used for electronic driving unit and high-voltage battery, then independent temperature control is achieved, but system complexity increases
Solution Approach 1:
The system merges the cooling lines of the electronic driving unit and high-voltage battery into a unified thermal management architecture. Both components share common elements including the heat exchanger, coolant reservoir, circulation pump, and control unit, while maintaining separate coolant flow paths for independent temperature control.
3Use of energy by moving object
If integrated thermal management system is implemented, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The integrated thermal management system performs multiple functions using shared components: it cools the high-voltage battery during charging, provides climate control for the vehicle interior, and recovers waste heat. The heat exchanger, coolant circulation system, and control unit serve all these purposes, reducing overall system complexity compared to separate systems.
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
This system enables effective independent control of cooling and heating for the electronic driving unit, high-voltage battery, and vehicle interior, improving energy efficiency and maintaining optimal battery performance.
Implementation Method 1
a first radiator configured to cool the electronic driving unit... a second radiator configured to cool the high-voltage battery
Implementation Method 2
a first radiator configured to cool the electronic driving unit... a second radiator configured to cool the high-voltage battery
Implementation Method 3
a heat exchanger configured to heat or cool the high-voltage battery through heat exchange between a refrigerant and a coolant
Implementation Method 4
a water heater configured to heat the coolant circulating in the second cooling line
Data Source
AI summary
An integrated thermal management system for vehicles includes: a first cooling line; a second cooling line; a refrigerant line; and a bypass line configured to diverge from the second cooling line, to be connected to a chiller, and to allow a coolant to bypass a second radiator and to circulate between a high-voltage battery and the chiller.