In terms of integrated control of chassis systems, Chinese suppliers still need to learn from world-renowned Tier 1 suppliers

DUBLIN, November 4, 2022 /PRNewswire/ — The “China Passenger Car Chassis Domain Controller Industry Report 2022” report has been added to from offer.

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The chassis area includes transmission, drive, steering and braking systems. Conventional vehicle chassis do not fit into the development of vehicle intelligence and autonomous driving, and require chassis-by-wire transformation. Vehicle chassis tend to be electronic, modular and intelligent.

Mechanical decoupling is a prerequisite for upgrading chassis technology. Yet in conventional chassis, braking and steering are mechanically coupled, that is, their power source is the mechanical force of the conductors controlling the terminals with the force amplified by hydraulic pressure. In the process of intelligent evolution, the key of chassis electronics, however, is to enable the decoupling of mechanical force and replacing it with motor drive, so as to improve control precision and also realize better combination of man and systems.

In addition to mechanical decoupling, the chassis also needs software and hardware decoupling. Conventional electronic chassis systems are divided into components such as electronic stability control (ESC), electric power steering (EPS) system, and electronically controlled suspension system. Each subsystem comes from different vendors or different OEM development departments, and has an independent vehicle power control system and vehicle dynamic control model.

In the development of chassis controllers, all of these trigger problems such as strong coupling relationship between software and hardware, repeated research and development and high development costs, and compensating negative effect between subsystems. , making optimal control of the vehicle inaccessible.

To meet today’s needs for new vehicle technologies and new functions, intelligent chassis domain controllers are emerging. In the field of highly automated driving, chassis domain controller products are more needed to enable centralized control of steering, braking, suspension and even power systems, and the separation of software and hardware, as well as the coordinated transverse, longitudinal and vertical control of vehicles, in the service of intelligent driving.

There are two paths of chassis domain controller technology development: the full-stack self-development path of some OEMs and the open ecosystem path represented by Tier 1 vendors.

The Volkswagen MEB platform uses three controllers to control the entire vehicle and activate functions. The ICAS1 vehicle control domain controller combines many functions, including body control management, drive system management, drive system management, power system management and system management. convenience, and integrates the body, power, and chassis domains into a single domain controller.

In 2022, NIO introduced its Intelligent Chassis Controller (ICC) at the launch of ET7. The ICC enables chassis design and tuning in all aspects of comfort, handling and handling and incorporates control features such as “redundant parking, air suspension and shock absorber”. This controller also supports cross-domain integrated high-level automated driving scenarios. FOTA updates allow its flexible and fast iterations. NIO’s controller can evenly adjust and control air spring leveling, shock absorber damping, electronic parking brake and other capabilities.

When it comes to the open ecosystem path, chassis domain controllers pose high technical barriers and there are few mass-produced solutions. Currently, Tier 1 vendors are working on single and multi-subsystem development (domain) controllers for chassis subsystems. For example, Keboda Technology has bundled its DCC (Dynamic Chassis Control) which supports Xpeng motors.

This controller is designed to allow dynamic control of suspensions. The two main products of Suzhou Gates Electronics, i.e. continuous damping dynamic suspension electric control system and air suspension electric control system, are also used for suspension control.

In terms of integrated control of chassis systems, Chinese suppliers have yet to learn from world-renowned Tier 1 suppliers.

ZF’s Integrated Brake Control (IBC), a brake-by-wire system, combines active rear axle steering by Active Kinematics Control (AKC) brake-by-wire control and the active damping system (sMotion), providing longitudinal, transverse and vertical safety and comfort experience. Recently, ZF’s front axle steering, the most important component of vehicle steering systems, has also enabled the electronic decoupling of software and hardware. All actuation systems are uniformly controlled by the cubiX platform. cubiX is an integrated software suite for vehicle motion control, coordinating all of the aforementioned actuators and sensors related to vehicle motion.

ZF’s cubiX VMC gathers sensor information from across the vehicle and the environment, and prepares it for optimized control of active systems in the chassis, steering, brakes and propulsion. Meanwhile, following a vendor-neutral approach, cubiX can support ZF and third-party components.

In the disruption of the smart vehicle industry, the only constant is change. Either full-stack independent development or the open ecosystem path has its own market space. There is still a significant gap between China’s Tier 1 chassis (domain controller) vendors and their overseas counterparts.

Fortunately, the intelligence of the chassis is linked to the electrification of the vehicle. Chinese OEMs are at the forefront of electrification, providing a golden opportunity for these Chinese players and attracting talent that serves overseas Tier 1 suppliers into domestic companies.

Main topics covered:

1 Automotive Chassis Domain Controller Industry Overview
1.1 Automotive Domain Controller Development Stages
1.2 Definition of Automotive Domain Controller
1.3 Automotive Domain Controller Ecosystem
1.4 Definition of Automotive Chassis Domain Controller
1.5 Classification of Automotive Chassis Domain Controllers
1.6 Architecture associated with automotive chassis domain controller
1.7 Context of advent of automotive chassis domain controller
1.8 The Automotive Chassis Domain Controller Acts as the “Cerebellum” of the Chassis
1.9 Meanings of Building an Automotive Chassis Domain Control System
1.10 Chassis-by-Wire Integrated Solutions for L3-L5
1.11 Electronic chassis will become common in the future
1.12 Prediction on Hardware Configurations of Automotive Chassis Field
1.13 Domain controllers are becoming a hotbed of intelligent vehicle computing center industry chain competition
1.14 Automotive Domain Controller Industry Scale, 2020-2030E

2 Tier 1 Passenger Car Chassis Domain Controller Suppliers
2.1 Keboda
2.2 Suzhou Door Electronics
2.3 Global Technology
2.4 NASN Automotive Electronics
2.5 China Vagon
2.6 Trinova
2.7 Geshi Smart Technology
2.8 Jingwei Hirain
2.9 Teemo Technology
2.10 Best
2.11 Baolong Automotive
2.12 ZF

3 Passenger car OEM chassis domain controller layout
3.1 INO
3.2 Automatic Li
3.3 Xpeng Engines
3.4 Great Wall Engine
3.5 Geely
3.6 Chery

4 Development Trends of Passenger Car Chassis Domain Controller Industry

For more information on this report, visit

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