the first domestic automated magnetorheological damper production line rolled off at keyi international
2024-09-19
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on september 19, 2024, jointly organized by tsinghua university suzhou automotive research institute, politecnico di milano, beijing all-media digital technology promotion association and others, the "domestic first launch, co-creation and win-win - 2024 international seminar on magnetorheological suspension technology and the rolling-off ceremony of 400,000 automated magnetorheological shock absorbers production line of keyi international" was successfully held at keyi international jiaxing base.
guests attending the event included chen guangzhen, member of the standing committee of the nanhu district party committee of jiaxing city, zhejiang province, minister of the organization department, and deputy secretary of the party working committee of the high-tech zone, cheng bo, dean of tsinghua university suzhou automotive research institute, professor sergio of the polytechnic university of milan, italy, gao jian, product experience director of xiaopeng motors, wei yintao, a tenured professor at tsinghua university and chairman of keyi international, as well as more than 160 company shareholders, oem customers, supplier representatives, investment institution representatives, and keyi international employee representatives. together, they witnessed the milestone and historic moment of "china's first automated magnetorheological shock absorber production line for automotive front-end installation came off the production line."
ten years have passed, from the involvement in magnetorheological fluid research and development in 2014 to the incubation of tsinghua suzhou institute, from the mass production and shipment of coma qingdao base to the verification of oem cooperation projects, from the signing of the contract and landing in jiaxing to the smooth rollout of the product, and then to the completion of three rounds of financing of tens of millions of yuan invested by zhongguancun zhiyou fund, longding capital, and jinyu maowu within a year. keyi international has been working hard for ten years, and the process has been extremely difficult. through the unremitting efforts of keyi people, the ten-year journey has finally reaped the fruits of this time. as a pioneer in the field of magnetorheological intelligent suspension in china, keyi international insists on independent innovation and has achieved full-stack self-development of core products, including magnetorheological fluid, magnetorheological intelligent suspension system, and suspension controller hardware and software. it is the only intelligent suspension system supplier in the world with a complete mrf+mrd+ecu+sw technology chain and mass production experience.
wei yintao, a permanent professor at tsinghua university and chairman of keyi international, said that the company's self-developed high-performance magnetorheological fluid has low zero-field viscosity, high yield strength, good re-dispersion performance after long-term static, strong valve core compatibility, and good fluidity at minus 40 degrees. the ecu and control algorithm achieve the fastest response control current, and the unique sh-add control algorithm has been verified on the world's top sports cars such as ferrari and porsche. the magnetorheological intelligent suspension system achieves the ultimate driving experience of the whole vehicle by sensing and controlling the body posture at the millisecond level. mrd controls the magnetic field by electromagnetic coils to change the damping force that can be generated by the magnetorheological fluid chain. the damping adjustment range is greatly improved, with low noise, fast response, high durability, and 50% improvement in anti-pitch and roll effects. it is the fastest known active suspension; the magnetorheological suspension achieves the fastest real-time perception and control speed among the known intelligent suspensions, with a reaction speed of up to 1,000 times per second. it has good handling stability, effectively suppresses pitch vibration, front and rear swaying and roll movement, has high control accuracy, and high driving comfort. moreover, the keyi magnetorheological intelligent suspension system uses standardized hardware design and software architecture, which not only improves the expansion convenience of new models, but also makes the vehicle tuning process more convenient and standardized. at the same time, the intelligent suspension controller can perform parameter calibration through the industry standard ccp protocol and ota upgrade through the uds protocol, so that the vehicle performance can be continuously iterated and improved with the technology upgrade.
in the technical seminar, professor sergio, an internationally renowned professor and expert from the polytechnic university of milan, italy, gave a keynote speech on the development of intelligent suspension control. experts shared their technical experience on topics such as the advancement of intelligent suspension control, multi-cavity air spring modeling and control, and keyi 6a-fluid magnetorheological fluid technology and products. they also exchanged the latest progress and industrialization trends in the field of magnetorheological intelligent suspension, which aroused the interest and thinking of the guests present. keyi international gave a keynote speech on core magnetorheological fluid technology for the first time and released the company's unique 6a-fluid magnetorheological fluid technology, which is anti-settling, anti-oxidation, anti-damage, anti-vibration, anti-thickening, and anti-friction. it perfectly solves the problem that the devil's triangle of sedimentation, vibration, and thickening cannot be satisfied at the same time. after ten years of research, keyi international has turned the devil's triangle into 6a synergy and commercialized it.
during the test drive session, the event site arranged 4 vehicles equipped with keyi international mrd intelligent suspension system for guests to test drive, including tank 300, zeekr 001, tesla model 3, and model y. the guests gave very good feedback on the real experience after getting on the car, which was mainly reflected in the strong controllability while ensuring excellent comfort; the human comfort was also greatly improved in pitch and roll. it is indeed the best suspension product currently experienced. (wu xingwen)
