Global and China Intelligent Steering Key Components Trends Report 2023: 32

DUBLIN, May 26, 2023 /PRNewswire/ -- The "Intelligent Steering Key Components Report, 2023" report has been added to ResearchAndMarkets.com's offering.

Research on intelligent steering key components: four development trends of intelligent steeringThe automotive chassis consists of four major systems: transmission system, steering system, driving system and braking system, covering five major parts: drive, gearshift, brake, suspension and steering.

Wherein, the steering system passes through the development process from mechanical steering to hydraulic power steering to electric power steering. Nowadays, as intelligent driving technology advances, intelligent steering, namely, electric power steering as an important part of intelligent chassis, is becoming widespread, and steer-by-wire that develops from electric power steering is also being applied.Based on conventional mechanical steering systems, electric power steering system adds sensor, electronic control unit (ECU) and power steering mechanism, and generates power by controlling the electric motor to achieve steering, which is completely free from the hydraulic power method.The key components of this system are torque sensor, motor and ECU, of which:

The torque sensor is used to measure the magnitude and direction of the torque applied to the steering wheel by the driver, and to convert the torque into an electrical signal sent to the ECU.

The electric motor converts the electric energy provided by the battery or generator into mechanical energy, outputs the appropriate torque to the mechanical steering mechanism, and together with the steering gear offers the steering torque to the steering wheels.

Based on the signals from the speed and torque sensors, the ECU determines the direction of rotation of the motor and the magnitude of current of the booster, so that the motor can provide power steering effects according to vehicle speeds.

Steer-by-wire will gradually replace electric power steeringThe main difference between steer-by-wire (SBW) and electric power steering (EPS) is that SBW removes the mechanical connection between the steering wheel and vehicle wheels and uses sensors to obtain the steering wheel angle data, and then the ECU converts the data into specific driving force data, so that the electric motor can drive the steering gear to turn the wheels. The EPS, on the other hand, uses an electric motor to assist the driver in steering.SBW outperforms EPS in response sensitivity and expansibility of intelligent driving functions. SBW not only has all the advantages of conventional mechanical steering systems, but also can optimize angular transmission characteristics, which is difficult for a mechanical system. By virtue of these benefits, SBW systems have become a development trend in the automotive industry.The gradual shift from brushed motors to brushless motorBrushless motors generate no electric sparks while running, its most direct difference from brushed motors, which minimizes the interference of electric sparks to remote control on radio equipment. Secondly, without brush, brushless motors enable much less friction, smooth operation, far lower noise and higher operational stability when they run. Thirdly, having no brushes means the wear of brushless motors is concentrated on the bearings. From a mechanical prospective, brushless motors are almost maintenance-free, only needing some dust removal maintenance when necessary. In the long run, brushless motors will thus gradually replace brushed motors.The transition from sliding variable resistance sensor to non-contact sensorSliding variable resistance sensors are a relatively conventional type of sensor. Despite high maturity, this sensor technology also has problems of unstable performance and short service life caused by wear and ageing of the sliding contact surfaces.

In contrast, non-contact sensors offer following benefits:

Longer service life for insusceptibility to wear and ageing

Higher levels of accuracy and stability

Available in harsh environments, e.g., high temperature and high pressure

Small size, light weight, easy to install and maintain

Hence non-contact sensors are expected to replace sliding variable resistance sensors and dominate the market in the future.32-bit MCUs are replacing 8-bit/16-bit MCUs.8-bit, 16-bit and 32-bit products prevail in the automotive MCU market. 8-bit MCUs are mainly used for controlling basic functions such as seat, air conditioner, fan, window, and door control module. 16-bit MCUs are generally applied to lower body covering power and transmission systems like engine, e-brake and suspension system. 32-bit MCUs customized for vehicle intelligence are often seen in automotive power system, intelligent cockpit and body control.In addition, steering system control units are almost monopolized by foreign manufactures such as JTEKT, NSK Ltd, ZF TRW, Nexteer and Sono Koyo Steering, and they are capturing bigger market shares by way of establishing joint ventures and partnerships. For example, the four companies, Aisin, ADVICS, JTEKT and Denso, have respectively combined their competitive hardware such as sensors, steering and brakes with integrated ECUs and established integrated ECU software development companies.Key Topics Covered: 1 Status Quo of Intelligent Steering Key Components1.1 Overview of Automotive Steering System1.1.1 Development History of Automotive Steering System1.1.2 Composition of Steering System Industry1.2 Composition and Basic Concept of Electric Power Steering (EPS) System1.2.1 Composition1.2.2 Features1.2.3 Classification1.2.4 Comparison between Different EPS Systems1.2.5 Industry Composition1.3 Composition and Basic Concept of Steer-by-Wire (SBW)1.3.1 SBW System1.3.2 Features1.3.3 SBW Layout of Related Companies1.4 Development Trends of Intelligent Steering System2 Steering Motor Suppliers2.1 Basic Principle and Status Quo 2.1.1 Overview of Steering Motor2.1.2 Status Quo of Steering Motor Market 2.2 Nidec Corporation2.3 Bosch2.4 Johnson Electric Group2.5 Ningbo Dechang2.6 JTEKT2.7 Nexteer Automotive2.8 Dongxingchang Motor2.9 Zhuzhou Elite2.10 Zhejiang Shibao2.11 Yubei Steering2.12 Dare Auto2.13 Others2.13.1 DIAS2.13.2 Welling Automotive Components Co., Ltd.2.13.3 Hubei Henglong Group3 Torque Sensor Suppliers3.1 Basic Principle and Status Quo3.1.1 Overview of Torque Sensor3.1.2 Major Types and Development Trends of Torque Sensor3.2 Hella3.3 Methode Electronics 3.4 FUTEK3.5 TE Connectivity 4 Steering System MCU Suppliers4.1 Basic Principle and Status Quo4.1.1 Overview of Steering System MCU4.1.2 Status Quo of Steering System MCU Market4.1.3 Overview of Steering System MCU4.1.4 MCU Companies in China 4.2 JTEKT 4.3 NXP4.4 Infineon4.5 Renesas Electronics4.6 STMicroelectronics4.7 Others4.7.1 Yuntu Micro4.7.2 Shanghai Thinktech Information Technology Co., Ltd.4.7.3 TI

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