HIRAIN semi-active suspension controller was successfully mass-produced

In the wave of vigorous development of the new energy vehicle industry, consumers' pursuit of driving experience is no longer limited to speed and endurance, but to a higher level of comfort, handling and safety. This change has prompted the automotive industry to continue to explore and innovate to meet the growing demand for intelligent suspension systems. In this context, HIRAIN, as a deep cultivator in the field of automotive electronics, has launched its self-developed semi-active suspension controller (VMC) with excellent technical strength and market insight. Recently, it has been successfully mass-produced with a hot-selling new energy vehicle, and has become one of the mainstream suppliers of domestic suspension controllers.

The core of the semi-active suspension controller is its exquisite combination of the flexibility of Air Spring and the precise control of electric shock absorption. The air spring, as an innovation of the suspension system, uses the compressibility of the air to automatically adjust the spring stiffness according to the road conditions and vehicle load, effectively absorbing and disperzing the road impact, bringing a cloud-like driving experience. The electric shock absorption technology, through the intelligent control system, adjusts the suspension damping in real time to ensure the stability and controllability of the vehicle in different driving states, so that the turning and acceleration are in control.

HIRAIN semi-active suspension controller, with independent intellectual property rights, not only integrates the essence of air spring and electric shock absorption, but also realizes the upgrade in terms of intelligence, safety and convenience:

▎Intelligent adjustment function: through regular wake-up detection, sensor/solenoid valve function detection to ensure that the suspension system is in an efficient and stable state of operation; Welcome mode, entertainment mode, camping mode, loading and unloading mode, maintenance mode, to meet the needs of users in different scenarios; Through collaborative control, road recognition, pre-sight control and other functions, significantly improve the adaptability and performance of vehicles under different road conditions, and its technical level is at the advanced level in China

▎Multiple security: Integrate a variety of load protection algorithms and fault degradation schemes, and strive to protect the basic functions of the system in the case of hardware failure of the suspension system to ensure the stable operation of the system

▎Convenient upgrade experience: Support AB partition non-inductive OTA brushing, can be completed without user intervention, making the software upgrade process more convenient and efficient

▎Flexible hardware configuration: the response time of the electronic shock absorber is 5-10ms, the accuracy is ±10mA, and the combination of 4 height sensors +3 acceleration sensors or 4 height sensors + IMU on the board is supported

▎Comply with international safety standards: the functional safety of the system meets the ASIL Class B standard, while the information security performance of the product also meets the strict requirements for export overseas, which escorts the driving experience

▎Equipped with magic carpet suspension function: integrates LiDAR/camera and body sensor information to achieve targeted control of speed bumps and wave roads

HIRAIN has been engaged in chassis product research and development business since 2006, after nearly 20 years of technology accumulation and innovation, chassis products cover steering power system control, linear chassis products, electronic parking system, chassis domain controller and suspension control and other products, and has provided supporting products and services to mainstream manufacturers at home and abroad, with a cumulative shipment of nearly 2 million sets.

Chassis control product family

At present, HIRAIN suspension products have been supporting a number of domestic Oems, with a total supporting shipment of more than 200,000 sets. In the future, HIRAIN will continue to rely on its own advantages and rich experience in the automotive electronics industry, continue to adhere to independent innovation, and constantly promote the chassis control technology upgrade. Following the mass production of semi-active suspension controller (VMC), in order to meet customer needs and improve user comfort, chassis products are committed to continuously promoting the landing of 48V active suspension system controller and 400V/800V active suspension system controller, bringing more comfortable driving experience to more consumers. Help China's auto industry occupy a more important position in the global market.