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首页 > 过刊浏览>2022年第45卷第8期 >44-54. DOI:10.11835/j.issn.1000-582X.2021.113
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不同低温下的电动车余热回收性能
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U462

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国家重点研发计划资助项目（2018YFB0105402）；重庆市技术创新与应用发展专项重点项目（cstc2019jscx-zdztzxX0033）。


Waste heat recovery performance of electric vehicles in various subzero environments
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    摘要:

    研究了余热回收技术在-10，-5，0℃下电池包加热的性能差异，并与传统加热方式进行了热管理性能和能耗的对比分析。基于国内某款商用电动车的整车热管理架构，提出了一种创新性的余热回收系统，能够显著降低热管理系统能耗。为此，基于一维热管理分析软件KULI，建立了余热回收模式下的电驱电控及电池包热管理系统模型，并建立了基于规则的控制策略，实现对散热风扇、冷却水泵、电控比例阀和四通道电磁阀的控制。仿真结果表明，在低温环境中，余热回收系统能够降低电池包用于加热自身的能耗，同时充分利用电驱电控系统产生的废热。根据仿真结果，电池包从环境温度-10，-5，0℃加热电池包到15℃，与传统加热方式热管理系统相比所消耗的能耗分别降低209.5，406.4，460.0 kJ。

    Abstract:

    The waste heat recovery performance and energy consumption of PTC (positive temperature coefficient) heater in electric vehicles under subzero environments (-10℃, -5℃ and 0℃) were investigated. Based on the vehicle thermal management system of a commercial electric vehicle, an innovative waste heat recovery system was proposed to significantly reduce the energy consumption of thermal management system. In addition, rule-based control strategies were developed to control the fan, pump, proportional valve, and 4-way valve. The results show that waste heat recovery technique fully took advantage of the waste heat generated by the electric drive system. Heating from -10℃, -5℃ and 0℃ (ambient temperature) to 15℃, the waste heat recovery reduced the energy consumption by 209.5 kJ, 406.4 kJ and 460.0 kJ, respectively, compared with traditional methods.

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李栋军,王毅,许向国,杜坤,张财志.不同低温下的电动车余热回收性能[J].重庆大学学报,2022,45(8):44-54.

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  • 收稿日期:2021-01-31
  • 在线发布日期: 2022-08-19
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