Abstract: Aiming at the overall vehicle design requirements of pure electric concrete mixer trucks under the "dual carbon" strategy, this paper conducts a systematic vehicle design study based on their structural characteristics and the particularities of mixing operation conditions. Firstly, key overall design aspects are analyzed, including electric drive system layout, power battery safety, electronic and electrical architecture, and high-voltage safety. Secondly, combined with typical operating condition characteristics such as full-load heavy haulage, frequent start-stop, and continuous mixing operations, the matching calculation of vehicle power performance parameters is carried out, with a focus on the impact of mixing operations on battery capacity selection and the differences between multi-speed and single-speed drive schemes. On this basis, collaborative design of the chassis system, powertrain, and integrated upper body is completed, and the effectiveness of the design indicators is verified through vehicle testing. The research results show that all performance indicators meet the design targets, and the product has been delivered and operated in batches in multiple provinces, providing a methodological reference and engineering practice basis for the vehicle design of similar pure electric special-purpose vehicles.

Key words: pure electric; concrete mixer truck; vehicle design

摘要： 针对纯电动混凝土搅拌运输车在“双碳”战略下的整车设计需求，文章围绕其结构特 点与搅拌作业工况特殊性，开展了系统性整车设计研究。首先，分析了电驱动系统布置、动 力电池安全、电子电器架构及高压安全等总体设计要点；其次，结合满载重载、频繁启停、 持续搅拌作业等典型工况特征，进行了整车动力性能参数匹配计算，重点探讨了搅拌作业对 电池容量选型的影响及多挡与单挡驱动方案的差异。在此基础上，完成了底盘系统、动力链 及一体化上装的协同设计，并通过整车试验验证了设计指标的有效性。研究结果表明，各项 性能指标均满足设计目标，产品已在多个省份批量交付运营，为同类纯电动专用车整车设计 提供了方法参考和工程实践依据。

关键词: 纯电动；混凝土搅拌运输车；整车设计