What Are The Latest Technological Advances in Electric Vehicle Heaters?
The latest technological progress in electric vehicle heaters mainly focuses on improving heating efficiency, optimizing control methods, and improving the environmental adaptability and safety of the system.
Improvement of heating efficiency: When electric vehicles operate in low-temperature environments, the charge-discharge performance and service life of the battery will be significantly reduced, which directly affects the cost and ease of use of electric vehicles29. In order to overcome this problem, researchers proposed a control method to find the heating balance gear based on the target heating water temperature. By optimizing the number of gear switches and heating time of the heater, the heating efficiency was significantly improved28.
Optimization of control methods: There are some problems with traditional PTC heaters, such as problems that may be caused by mechanical wire drawing panel control. In order to solve these problems, researchers have proposed improved measures to increase the protection controller, which effectively improves the performance and safety of the heater33.
System integration and intelligent control: With the rapid development of the electric vehicle industry, the requirements for thermal management systems are also constantly increasing. Research shows that comprehensive integration of the air conditioning system, battery thermal management system and motor thermal management system, and the use of intelligent control, can maximize energy utilization efficiency while ensuring driving safety and comfort2427.
Improvement of environmental adaptability: The heat pump air conditioning technology of electric vehicles has broad application prospects because of its energy-saving performance. However, pure electric vehicles require high energy consumption to maintain normal operation in low-temperature environments, which poses a challenge to the popularity of electric vehicles. Therefore, improving the environmental adaptability of electric vehicle heat pump air conditioning systems and optimizing reasonable heat pump air conditioning systems are of great significance to improving the endurance of electric vehicles26.
Application of micro-channel/micro-heat pipe cooling technology: Compared with traditional cooling methods such as air cooling and liquid cooling, the battery thermal management system (BTMS) based on micro-channels, micro-channel cold plates and micro-channel heat pipes has demonstrated more excellent cooling methods. thermal performance, has become a feasible and effective thermal management solution. Although there are problems such as complex structure and poor practicality, by conducting research on strengthening heat transfer and structural mechanical strength of BTMS, its heat transfer performance and structural strength can be significantly enhanced, thereby improving the safety and reliability of electric vehicles31 .
The latest technological progress in electric vehicle heaters is mainly reflected in the improvement of heating efficiency, optimization of control methods, system integration and intelligent control, improvement of environmental adaptability, and the application of micro-channel/micro-heat pipe cooling technology. These developments not only improve the performance and safety of electric vehicles, but also provide valuable references for future research directions.
