Abstract: For urban electric vehicle commuting, a portable foldable photovoltaic charging solution (no vehicle mods) is proposed to use parking-time solar power, reducing grid reliance and emissions. A Simulink model integrating drivetrain, battery, air conditioner, and photovoltaic systems quantifies energy matching for different photovoltaic setups via China light-duty vehicle test cycle (CLTC). Seasonal strategies are developed using data from Shanghai and Urumqi.Simulations show an 1 800 Wp setup fully covers daily commuting energy on 65.51% (Shanghai) and 60.10% (Urumqi) of days. Winter energy use rises by 19.61% (Shanghai) and 42.69% (Urumqi) versus summer due to air conditioner loads. Annual savings exceed 800 kWh, cutting CO2 by hundreds of kilogram to over 1 ton per person. This portable photovoltaic solution significantly extends electric vehicle range, eases grid pressure, boosts renewable integration, and aids low-carbon urban transport.

Key words: electric vehicle; portable photovoltaic; urban commuting; charging mode

摘要： 针对城市通勤场景下电动汽车续航能力提升及低碳出行需求，提出一种无需改装车辆 便携可折叠光伏充电方案，旨在通过停车时段光伏发电补充能源，降低对电网的依赖，推动 节能减排。构建包含传动系统、电池、空调及光伏系统的 Simulink 多子系统耦合模型，基于 中国轻型车测试循环（CLTC）量化不同光伏配置与电动汽车的能量匹配关系。以上海、乌鲁 木齐为对象，结合气象数据建立季节性优化策略。仿真显示，1 800 Wp 配置下，上海和乌鲁 木齐分别有 65.51% 和 60.10%的天数可通过光伏发电覆盖通勤能耗。冬季因空调负荷增加， 两地通勤能耗较夏季分别上升 19.61%和 42.69%。通过季节性策略优化，两地年均节省电量超 800 kWh，年人均减少 CO2 排放数百千克以上。便携光伏充电方案能显著提升电动汽车续航 能力，缓解电网峰谷压力，促进可再生能源消纳，助力城市低碳交通体系构建。

关键词: 电动汽车；便携光伏；城市通勤；充电模式