中国标准动车组2013年起开始研发，自首款列车2015年问世至今，历经多年发展，已形成完成的产品体系。随着技术的不断发展，自动驾驶技术逐渐成熟，具备投入商业运行的条件，同时为了在2022年北京-张家口冬奥会中展现中国高铁风采，搭载更先进控制平台和全新外观设计的CR400BF智能动车组诞生。新型列车优化了气动外形，能够实现更低风阻，降低噪音和能耗。提供更优的客舱服务水平，有效提升舒适度。
除了对乘客界面进行优化之外，智能动车组对列车对网络、转向架、车载安全监测等系统进行了智能化升级，具备智能故障诊断及智能运维功能，无需人工检修，自动记录故障类型、位置与出现时间及图片、视频，结合传感器数据及图像数据，通过AI主动判断故障位置、类型并给出合理对策，同时还进一步优化车地协同，使列车在安全性和舒适性上都有进一步的提升。将烟火报警与弓网监控整合进列车网络，将全车所有故障预警进行整合，均接入列车网络中，当故障出现时，系统直接直接给出相应的检查单，所有的故障会直接给出错误码并附带相应的处理方法。同时，全新的列车网络使弓网监控延迟不大于10ms，相较既有CRH以及普通复兴号有大幅度提升，还支持全车视频监控与快速回放，大幅提升列车运维智能化程度，有助于减少未能及时发现和处理故障带来的安全隐患。通过一系列的智能化的安全措施，列车维护保养周期大幅增加，部分线路条件较好的交路能够实现16000km/192h人工一级修里程，降低维保成本，也极大提升列车的出勤率。作为中国标准动车组的新成员，CR400BF智能系列动车组不仅支持不同型号、不同厂家生产的列车重联，还可以实现任意方向重联（CRH动车组大部分仅支持00车与01车重联），甚至还支持短编组与长编组重联及四组短编组重联运行和救援，可实现相互控制，亦可于普通CR400系列重联运行。更加适合中国铁路实际情况的理念，加上大量免维护和易维护的设计和自动化检修手段，极大便利的检修维护，延长检修周期，线路条件较好的交路能够实现人工一级修里程16000km/192h。
本系列自2018年12月采用新头型和瑞雪迎春、龙凤呈祥新涂装的模型车首次亮相至今，历经不断试验与改进，已经成为中国高速动车组颜值担当和扛鼎之作。CR400BF智能动车组平台涵盖8、16、17辆编组、工作温度-50~50℃等多款车型，在北京东奥、杭州亚运中成为重要的“中国名片”，同时，还衍生出新一代高速综合检测列车，并在下一代CR450动车组的研制中起到至关重要的作用。
CR400BF-C EMU Train was born in December 2018, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 350 km/h, and 390 km/h in the experiment .
CR400BF-C (Special Version for the 2022 Winter Olympics) EMU Train was born in November 2020, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 350 km/h, and 385 km/h in the experiment .
CR400BF-Z EMU Train was born in May 2021, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 350 km/h, .
CR400BF-GZ EMU Train was born in May 2021, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 350 km/h, .
CR400BF-BZ EMU Train was born in May 2021, belongs to the CR400BF Smart edition series, 8M9T in marshalling, the hole length is 442.16 m, has a maximum design speed of 350 km/h, .
CR400BF-J-0001 EMU Train was born in . 2021, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 400 km/h, and 453 km/h in the experiment .
CR400BF-AZ EMU Train was born in Jult 2022, belongs to the CR400BF Smart edition series, 8M8T in marshalling, the hole length is 414.26 m, has a maximum design speed of 350 km/h, .
CR400BF-J-0003 EMU Train was born in April 2023, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 400 km/h, and 385 km/h in the experiment .
CR400BF-Z (Special Version for the 2023 Asian Games) EMU Train was born in June 2023, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 350 km/h, .
CR400BF-S EMU Train was born in May 2024, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 350 km/h, .
CR400BF-BS EMU Train was born in . 2024, belongs to the CR400BF Smart edition series, 8M9T in marshalling, the hole length is 442.16 m, has a maximum design speed of 350 km/h, .
CR400BF-GS EMU Train was born in June 2024, belongs to the CR400BF Smart edition series, 4M4T in marshalling, the hole length is 211.31 m, has a maximum design speed of 350 km/h, .
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列车开往的方向并不重要，
重要的是窗外的风景和看风景的心情。
处在嘈杂的动态中，
却是静而细腻的心思。
