| 摘要: |
| 纯电动车的电池恒温调节包括冬季极寒地区对电动车的电池进行升温，减缓其在低温环境下的放电速度，增加续航里程；以及夏季在高温地区为电池降温，减缓高温环境下其内部单元的老化速度，延长其使用寿命两个方面。针对纯电动汽车能源电池恒温调节的问题，在此提出利用辅助恒温装置控制电池温度的方法——液体恒温控制法，并搭建了一套使用整车空调及暖风系统对电池进行温度调节的装置，确保电池在各种气候条件下始终工作在最佳环境中。其中升温部分采用水暖方式，使用可调节PTC加热储水罐中的防冻液通过换热板为电池升温；降温部分则使用制冷剂R134a作为工作介质。介绍恒温装置的结构形式及工作原理，利用仿真模拟分析论证了此装置的可行性及高效性。 |
| 关键词: 纯电动车 电池 恒温调节 PTC |
| DOI： |
| 投稿时间：2012-04-05
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| 基金项目: |
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| Research of the Battery System Thermostat of Full Electric Vehicle Based on Air-conditioning Technology |
| Zhao Nan,Tian Jun |
| (Shenyang Agriculture University;The brilliance automobile engineering research institute) |
| Abstract: |
| The control of battery thermostatic in full electric vehicle includes two aspects. One is warming the electric vehicle battery package in the severe cold districts in the winter to reduce discharge velocity in low temperature conditions and increase the battery’s endurance. The other is cooling the battery package in the high temperature districts in the summer to slow down the aging velocity of inner units in high temperature environment and prolong the using lifetime. Targeted on the problem of energy battery in full electric vehicle, the method for controlling battery temperature using assistant thermostat is proposed?—liquid constant temperature control method. A set of devices which could modulate the battery package temperature through the air conditioning and heating system is established so that the battery package can work well in any weather conditions. The water heating method, which makes use of antifreeze solution in the water storage tank whose temperature is modulated by PTC(Positive Temperature Coefficient) thermostat, is used for heating; the refrigerating fluid –R134a is used for cooling. The thermostat’s construction and working principle are introduced. Finally, the performance and feasibility of the thermostat are analyzed through testing and simulating. |
| Key words: electric vehicle battery package thermostat modulation PTC (Positive Temperature Coefficient |
