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插电式混合动力汽车PHEV紧急充电模式下的电池电量控制策略优化

2021-10-31徐玄之魏黎戴紫璐彭超徐梓峰李克诚

河南科技 2021年15期

徐玄之 魏黎 戴紫璐 彭超 徐梓峰 李克诚

摘 要:汽车产业一直以来都是国民经济的支柱产业,根据汽车的驱动动力源,汽车主要分为传统燃油汽车(动力源为汽油或柴油)和新能源汽车(电能或其他节能资源必须作为动力源之一)。而插电式混合动力汽车(PHEV)属于新能源汽车。对于不同的PHEV电驱动架构和整车零部件参数,需要不同的能量管理策略。本文主要介绍了P0+P3 CVT PHEV混合动力架构的紧急充电模式下电池电量的控制策略,通过开发一种新的软件控制策略,并结合试验结果,证明了即使P0电机功率较小时,也可以使车辆在极高环境温度、较低SOC下维持怠速和蠕行的电平衡,保证电池包的使用寿命,同时不限制电子压缩机功率,使驾驶室快速冷却。

关键词:插电式混合动力汽车;电池电量;混合动力架构;能量管理

中图分类号:U469.7文献标识码:A文章编号:1003-5168(2021)15-0111-03

Abstract: The automobile industry has always been a pillar industry of the national economy. According to the driving power source of automobiles, automobiles are mainly divided into traditional fuel vehicles (the power source is gasoline or diesel) and new energy vehicles (electric energy or other energy-saving resources must be used as one of the power sources). The plug-in hybrid vehicle (PHEV) is a new energy vehicle. Different energy management strategies are required for different PHEV electric drive architectures and vehicle parts parameters. This paper mainly introduced the control strategy of battery power under the emergency charging mode of P0 + P3 CVT PHEV hybrid architecture. Through the development of a new software control strategy and combined with the test results, it was proved that even if the power of P0 motor was small, the vehicle could maintain the electric balance of idling and creeping under extremely high ambient temperature and low SOC, so as to ensure the service life of the battery pack. At the same time, the power of the electronic compressor is not limited, so that the cab can be cooled quickly.

Keywords: plug-in hybrid electric vehicle;state of charge;hybrid configuration;energy management

乘用車双积分考核政策包括企业平均燃油消耗量(Corporate Average Fuel Consumption,CAFC)积分和新能源汽车(New Energy Vehicle,NEV)积分[1]。到2025年,乘用车新车平均燃料消耗量达到4.0 L/100 km是国际趋势[2],也是我国《中国制造2025》及《汽车产业中长期发展战略》中对节能与新能源汽车提出的要求。为了实现到2025年乘用车新车平均燃料消耗量达到4.0 L/100 km的目标,一方面需要持续降低传统汽车燃料消耗量,特别是推动48 V系统、混合动力系统等技术的广泛使用,另一方面需要相当数量的新能源汽车。

新能源汽车包括插电式混合动力汽车(Plug-in Hybrid Electric Vehicle,PHEV)、纯电动汽车(Battery Electric Vehicle,BEV)、燃料电池汽车(Fuel Cell Vehicles,FCV)[3]。基于各车企自身的技术……

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