关键词: 纯电动；混凝土搅拌运输车；整车设计

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