#### 期刊菜单

Proposal and Verification of Matching Design Method for Electric Vehicle Heat Pump Air-Conditioning System
DOI: 10.12677/MOS.2020.92016, PDF, HTML, XML, 下载: 381  浏览: 859

Abstract: According to the driving conditions and design requirements of electric vehicles, this paper pro-poses a matching design scheme suitable for electric vehicle heat pump air conditioning systems, which mainly includes the calculation of automobile hot (cold) load and matching methods of main parameters of main components. An electric vehicle heat pump air-conditioning system was used to verify the reliability of the method, simulate the design conditions in the environmental simulation laboratory, conduct experimental tests on the performance of the designed heat pump, and compare and analyze with the design goals. The results show that the experimental results are basically consistent with the design goals, and the error is within 5%. It can be seen that the matching design method of the electric vehicle heat pump air conditioning system proposed in this paper combines the driving state and working environment of the car, which is suitable for the basic electric vehicle heat pump air conditioning system to provide a reliable method and ideas for the design of heat pump air conditioning systems for electric vehicles.

1. 引言

2. 电动汽车负荷的构成与计算

2.1. 电动汽车负荷的构成

Figure 1. Demand curve of system

Figure 2. Sources of load in electric vehicles

$Q={Q}_{C}+{Q}_{G}+{Q}_{F}+{Q}_{P}+{Q}_{A}+{Q}_{E}+{Q}_{q}+{Q}_{Z}$ (1)

2.2. 电动汽车负荷的计算

Table 1. Calculation method of each partial load

Table 2. Meaning and reference value of each parameter

3. 系统的匹配设计

Table 3. Operating parameters of the vehicle to be tested

Figure 3. The cooling load of the target car at different ambient temperatures

Figure 4. Capability value matching calculation flow chart of main parts

Figure 5. System schematic diagram

Table 4. Capability value of main parts

4. 实验验证

4.1. 环境模拟实验室

4.2. 实验结果分析与对比

Figure 6. Environmental simulation laboratory diagram

Figure 7. Schematic diagram of the temperature measurement point inside the car

Figure 8. Changes in suction and discharge temperature and pressure over time

Figure 9. Changes in the ambient temperature of the car over time

Figure 10. Comparison of maximum heat exchange capacity of indoor heat exchanger and system COP

5. 结束语

NOTES

*通讯作者。

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