74 Global and China Passenger Car Intelligent Chassis and Chassis Domain Controller Research Report 2023 Featuring 17 Chinese Tier 1 Suppliers, 5 Foreign Tier 1 Suppliers and Layout of 10 OEMs

DUBLIN, March 14, 2024 /PRNewswire/ — The “Passenger Car Intelligent Chassis and Chassis Domain Controller Research Report, 2023” report has been added to  ResearchAndMarkets.com’s offering.

Passenger Car Intelligent Chassis and Chassis Domain Controller Research Report, 2023, combs through three integration trends of brake-by-wire, steer-by-wire, and active suspension, and researches chassis control strategies, chassis domain controller products & planning of suppliers and OEMs.

As one of core technologies of vehicle intelligence, intelligent chassis can not only satisfy the requirements of high-level autonomous driving, but also bring safer and more comfortable driving experience to occupants and provide hardware support for vivid imagination of future intelligent cockpit. At this stage, intelligent chassis is composed of sub-components such as brake-by-wire, steer-by-wire and active suspension, and controls the chassis through digital signals to realize active adjustment at six degrees of freedom in lateral, longitudinal, and vertical directions, and provide bearings for vehicle autonomous driving system, cockpit system, and power system.

Chassis single-system integration continues to increase

Chassis single-system integration is mainly X-by-wire system integration, of which brake-by-wire system integration is the most typical.

For steering system, the mainstream core actuator is still EPS (electric power steering), while steer-by-wire systems are less used. In the future, the key development trend of steer-by-wire system is integration of steer-by-wire structure and mechanical redundant structure.

Mainly based on air suspension, active suspension further adds sensors and electronic control systems for active adjustment of its height, stiffness and damping according to actual road conditions, so as to enables fine system control in driving/parking state and improve driving comfort.

Representative route of brake-by-wire integration is EHB integrated with ABS/ESP, often known as One Box solution that features high integration and low cost and can meet autonomous driving requirements in combination with RBU (redundant brake unit), having been the most marketable X-by-wire product at this stage.

In terms of brake-by-wire integration, leading companies such as Bethel Automotive, Tongyu Automotive and TruGo Tech have already released relevant products.

Bethel Automotive’s wire-controlled brake system (WCBS), a One Box solution, integrates vacuum booster, electronic vacuum pump, master cylinder, ESC and EPB, and features high integration, light weight, quick braking response and low overall costs. WCBS (OneBox) came into mass production in June 2021, and was mass-produced for more than 20 models in 2022.

Tongyu Automotive’s Electronic Hydraulic Braking System with Integrated Electrical Parking Brake (EHB-EPBi) integrates the EPB control module into the EHB controller to reduce components and lower costs. As of October 2023, Tongyu Automotive has shipped more than 100,000 units of EHB-EPBi products. In addition, its integrated brake-by-wire (iEHB) product integrates five functional modules, namely, EHB, ESC, redundant EPB, intelligent tire monitoring and chassis domain control, which enables such functions as basic braking, brake-by-wire, park-by-wire, and stability control. Tongyu Automotive iEHB has been designated exclusively by OEMs and will be production-ready in late 2023.

TruGo Tech’s Electric Hydraulic Booster Integrated (EHBI), a One Box solution, integrates functions of ABS, ESC, E-booster, and EPB, and supports multi-sensor fusion, providing vehicles with good pedal feeling and emergency braking capability. EHBI (Onebox), officially launched in October 2022, combines over 30 intelligent functions such as booster control, cooperative brake energy recovery, wheel anti-lock braking control and body stability control.

Chassis intra-domain integration enables cooperative XYZ control

Under the cooperative control by the chassis domain controller, fusion control of brake, steer, suspension and other X-by-wire systems allows for quicker dynamic response, shorter pressure build-up time, fine-grained precision brake-by-wire, steer-by-wire, and precision adjustment of electronic suspension parameters (flexibly adjusting damping, stiffness, height, and vibration control), and it can constantly and actively learn road conditions and environmental patterns to continuously improve chassis comfort performance.

For example, according to Gates Electronics’ chassis integrated domain controller technology route, the Gen3 realizes integration of suspension (CDC), air suspension (AS), steer-by-wire (SBW) and EPB (electronic parking brake); the Gen5 adds hub motors; the Gen7 adds EMB (brake-by-wire).

As a representative supplier in the field of intra-domain integration, Tongyu Automotive makes product layout covering three major areas: intelligent braking system, steer-by-wire system and chassis domain controller. Tongyu Automotive is headquartered in Shanghai, and has two production bases in Jiading District of Shanghai and Yichun City of Jiangxi, with annual capacity of 1.5 million sets. 

Cross-domain integration of chassis domain with other domains brings bigger imaginable space to SDV

Chassis intelligence includes not only intra-domain integration, but also cross-domain integration (with intelligent driving domain, body domain, power domain, etc.).

For example, China’s first full-stack self-developed intelligent chassis controller (ICC) NIO introduced in June 2022 centralizes core components of conventional chassis, including more than 100 component controllers such as suspension, damper, and EBP, into one domain controller at perception and decision levels, which is intelligently called and controlled by software algorithms.

ICC is adaptable to autonomous driving, and makes a quick response to the predictions and decisions made by intelligent driving systems, improving vehicle comfort. For instance, in a NAD scenario, the intelligent driving domain fusion control system can simultaneously control the vehicle’s 4WD distribution, brake-by-wire, variable suspension and other functions, effectively improving the vehicle’s dynamic performance. NIO ICC has already been mass-produced for NT2.0 models, such as ET7, ET5, and ES7.

At the Auto Shanghai 2023, Continental first introduced its cross-domain vehicle control High Performance Computer (HPC), which is the first step in cross-domain integration of vehicle dynamic control functions. In addition to the original body control and gateway functions, this solution also integrates chassis control applications, and cross-domain vehicle control functions such as damping control, adaptive air suspension and chassis tuning. Continental’s central dynamic control software acts as the command center that coordinates all vehicle motion actuators for longitudinal, lateral and vertical control. It is modular and scalable, serving as a unified interface that decouples driving functions from specific actuators and vehicle configurations.

In the future chassis cross-domain integration era, ECU and other control hardware as well as software algorithms all will be integrated into the chassis domain controller or the central computing unit, under which OEMs will tend to master their own control module technology. NIO, Li Auto and other OEMs with strong R&D strength have already held by way of self-development, and voices of conventional chassis suppliers are being weakened. In short, the chassis industry will see a big reshuffle in the intelligent transformation.

Key Topics Covered:

1 Overview of Automotive Intelligent Chassis Industry
1.1 Overview of Intelligent Chassis
1.2 Intelligent Chassis Features
1.3 Chassis System Evolution
1.4 Composition of Chassis-by-wire
1.5 Overall Architecture of Chassis-by-Wire
1.6 By-wire Redundancy
1.7 Investment and Financing in Intelligent Chassis Industry
1.8 Development Goals and Path of Passenger Car Intelligent Chassis
1.9 Development Goals and Path of Brake-by-wire
1.10 Development Goals and Path of Steer-by-wire
1.11 Development Goals and Path of Intelligent Chassis Development & Testing Platform
1.12 Goals and Path of Intelligent Chassis Standards and Specifications

2 Chassis-by-wire Market
2.1 Brake-by-wire Market
2.2 Steer-by-wire Market
2.3 Suspension-by-wire Market

3 Chassis Domain Controller Market
3.1 Automotive Domain Controller
3.2 Automotive Chassis Domain Controller
3.3 Automotive Domain Controller Industry Layout
3.4 “Cerebellum” Role of Automotive Chassis Domain Control
3.5 Importance of Constructing Automotive Chassis Domain Control System
3.6 Chassis-by-wire Integrated Solution for L3-L5
3.7 Chassis Domain Control Solutions of ZF and NIO
3.8 Electronic Chassis Will Become Mainstream in Future Development
3.9 Chassis-by-wire Domain Controller Architecture
3.10 Hardware Configuration Forecast of Automotive Chassis Domain
3.11 Price of Different Domain Controllers
3.12 Automotive Domain Controller Industry Size, 2020-2030E
3.13 Chassis Domain Controller Development Modes
3.14 Chassis Domain Controller Applications of OEMs
3.15 Summary of Chinese Chassis Domain Controller Suppliers

4 Chinese Chassis Domain Controller Tier 1 Suppliers
4.1 Tuopu Group
4.2 Baolong Automotive
4.3 Bethel Automotive
4.4 LeeKr Technology
4.5 Global Technology
4.6 Trinova
4.7 Tongyu Automotive
4.8 TruGo Tech
4.9 Gates Electronics
4.10 NASN Automotive Electronics
4.11 Zhongding Group
4.12 Bebest
4.13 BWI
4.14 China Vagon
4.15 Keboda
4.16 Jingwei Hirain
4.17 Geshi Intelligent Technology

5 Foreign Chassis Domain Controller Tier 1 Suppliers
5.1 Bosch
5.2 Continental
5.3 ZF
5.4 Schaeffler
5.5 Nexteer

6 Intelligent Chassis Research Layout of OEMs
6.1 BYD
6.2 NIO
6.3 Leap Motor
6.4 Li Auto
6.5 Xpeng Motors
6.6 Aion
6.7 Avatr
6.8 Neta Auto
6.9 Chery
6.10 Tesla

7 Passenger Car Intelligent Chassis Characteristics Summary and Development Trends

For more information about this report visit https://www.researchandmarkets.com/r/5q2e8r

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