Abstract: With the release of the "dual-carbon target" and the update of national standards, there is a higher requirement for the economic efficiency of heavy commercial dump trucks. The hybrid solution integrates the long transportation mileage of fuel vehicles and the low-carbon transportation advantages of new energy vehicles, and has received widespread attention in the commercial vehicle market. For the city and construction standard-payload transportation market, based on the revised content of national standards and the typical working conditions of the market, a plug-in hybrid vehicle motor battery matching method is proposed. The design indicators are the pure electric mode power demand of the China heavy-duty commercial vehicle test cycle-dumper (CHTC-D) working condition, the braking recovery power of the typical working conditions of the market, and the maximum climbing angle of the vehicle, and the driving motor power is determined based on these indicators. The design indicators are the peak power of the motor and the pure electric range, and the power battery capacity is determined based on these indicators. The proposed solution provides a comprehensive solution for the vehicle. The Cruise simulation analysis results and the test results of the chassis dynamometer show that the CHTC-D working condition fuel consumption is lower than the fourth-stage fuel consumption limit by 6.52%, the pure electric range is more than 50 km, the total time of the CHTC-D test in pure electric mode is less than 15 s, and the typical working condition fuel saving rate is 16.88%. These results verify the accuracy of the vehicle solution, meet the requirements of national standards and market competition, and have good application prospects.

Key words: urban construction standard load; hybrid power system; matching design; solution

摘要： 随着“双碳目标”发布及国家标准更新，对重型商用自卸车型的经济性提出了更高要 求，混合动力方案集成燃油车型长运输里程与新能源车型低碳运输优势，受到商用车市场广 泛关注。针对城建标载运输市场，根据国家标准修订内容及市场典型工况需求提出了一种插 电式混合动力车型电机电池匹配方法，以中国重型车商用车测试工况-自卸车（CHTC-D）纯 电模式需求功率、市场典型工况制动回收功率及整车最大爬坡度为设计指标确定驱动电机功 率，以电机峰值功率、纯电续驶里程为设计指标确定动力电池容量，提供整车解决方案。Cruise 仿真分析结果及底盘测功机测试结果表明，CHTC-D 工况油耗低于四阶段油耗限值 6.52%， 纯电续驶里程在 50 km 以上，纯电模式下单次 CHTC-D 试验累计超差时间在 15 s 以内，市场 典型工况节油率 16.88%，验证了整车方案的准确性，满足国家标准及市场竞争需求，具备良 好的应用前景。

关键词: 城建标载；混合动力系统；匹配设计；解决方案