ASU (Air Supply Units for air suspension) is a core subsystem of automotive air suspension systems. By generating, storing, and regulating compressed air, it enables dynamic control of suspension height, stiffness, and damping, thereby improving vehicle comfort, handling, and off-road capability.

Its main functions include:

1.Supplying stable high-pressure air to support vehicle weight and adjust suspension travel;

2.Dynamically regulating air pressure according to driving conditions;

3.Preventing abnormal states such as overpressure, overheating, or air leakage to ensure system reliability.

The air suspension supply system primarily consists of four parts: the air source module, control module, actuation module, and auxiliary components:

Air source module: responsible for air pressure generation and storage. The air compressor compresses ambient air to high pressure, operating on-demand with built-in overload protection. The air tank stores high-pressure air to reduce compressors recycling and stabilize air pressure output. The air dryer removes moisture from compressed air to prevent freezing or corrosion during winter.

Control module: Handles signal processing and logic control. The ECU/TCU receives sensor data, calculates target pressure and controls solenoid valve actions. It implements closed-loop height control, stiffness adjustment, overpressure relief (via safety valve), compressor thermal shutdown, and leak detection alerts. The pressure regulator reduces high-pressure air from the air tank to working pressure suitable for air springs, preventing damage from overpressure.

Actuation module: Manages air distribution and regulation. The solenoid valve set directs air flow through inflation, deflation, and pressure-holding operations, with individual solenoid valves for each air spring. Some vehicles include mechanical lock valves that maintain pressure when powered off. Air lines.

Auxiliary components include: Safety Valve, Exhaust Muffler, Filters and filter elements, which enhance system reliability and performance.

Working principle of the ASU Air Supply System:

Height sensors continuously monitor vehicle posture, acceleration sensors detect road impact signals, pressure sensors measure air tank pressure. The ECU integrates these data and driving modes to form control strategies. Based on algorithms, it automatically inflates or deflates air springs to maintain the vehicle at a preset height, ensuring optimal working conditions for the air suspension.

Example operations:

Vehicle raising (inflation process): When increased load lowers the body height, the sensors detect the drop, and the ECU opens the solenoid valves to inflate the air springs. The rising pressure lifts the vehicle until the target height is reached, then the valves close to maintain the height.

Vehicle lowering (deflation process): When reduced load causes the body to rise, the ECU opens the valves to release air. The pressure drop lowers the body until the desired height is reached, after which the valves close.

Air spring pressure directly affects suspension stiffness:

Higher pressure → firmer springs → better handling

Lower pressure → softer springs → better ride comfort

A closed-loop control algorithm (e.g., PID) ensures height deviation stays within ±3 mm and minimizes compressor cycling to extend system lifespan.

Technique features and advantages of the Air Suspension Supply System:

Active Adjustment & Dynamic Response: Real-time monitoring via height and pressure sensors combined with ECU control enables quick and precise adjustment of air pressure, ride height, and suspension stiffness.

Modular & Integrated Design: Core components such as the compressor, air tank, solenoid valves, and sensors are highly integrated for a compact layout, suitable for various vehicle platforms. Lightweight materials ensure pressure resistance while reducing system weight and improving energy efficiency.

Stable Pressure & Safety Protection: The air tank provides a stable pressure reserve, reducing compressor start/stop frequency and extending component lifespan. Safety valves protect against overpressure. Fault detection features (e.g., for air leaks, overheating, or sensor failure) trigger automatic protection mechanisms and alerts.

Through “real-time sensing, intelligent decision-making, and precise execution”, the ASU air suspension system enables active control over ride height and suspension characteristics. Compared to traditional suspension systems, it offers clear advantages in comfort, load adaptability, and smart functionality.

HOLS Automation has years of expertise in industrial automation, backed by a strong technical team and R&D capabilities. The company offers intelligent manufacturing solutions for chassis suspension systems, including: Automated Air Spring Dampers Production Line, Air Suspension Supply System Assembly Line, Air compressor Assembly Line, Automated Chassis Domain Controller Production Line, etc.

In industrial manufacturing, there are automated machines that specialize in controlling fluids and dribbling and coating them onto the surface or interior of products, including glue dispensing machines, coating machines, and dispensing machines. What is the difference between glue dispensing machines and dispensing machines

The glue dispenser, also known as the AB glue dispenser, is an automated machine that specifically controls the fluid and drips, coatings, and seals the liquid onto the surface or inside the product, achieving sealing, fixation, waterproofing, and other functions. Generally, two-component glue is used. The dispensing machine, also known as the glue coating machine, drip glue machine, glue dispensing machine, etc., is specifically designed to control the fluid. An automated machine that drips and coats the fluid onto the surface or interior of the product, achieving three-dimensional and four-dimensional path dispensing, precise positioning, precise glue control, no drawing, no leakage, and no dripping

The dispensing machine is mainly used for precise dispensing, injection, application, and dripping of glue, paint, and other liquids in the product process to the precise position of each product. It can be used to achieve dispensing, drawing lines, circular or arc shapes
The most straightforward difference between a glue dispenser and a dispensing machine is that glue dispensing is aimed at products with large amounts and areas of application, while dispensing is more focused on fine products with small areas

The glue dispenser is suitable for large areas and large quantities of glue. The cost of the glue dispenser is much higher than that of the dispensing machine. If the monthly usage is within a few hundred kilograms, it is generally not considered to use a glue dispenser, manual operation or dispensing machine 

The specific differences between glue dispensers and dispensing machines are as follows:

1. Different glue control methods: Currently, most dispensing machines on the market still rely mainly on air pressure to control the dispensing process. Of course, there are now some machines that do not require air pressure control, while dispensing machines mainly rely on a metering pump to control the dispensing process. The amount of dispensing is adjusted by adjusting the pump speed.At present, the main metering pumps on the market are: gear pumps (mainly used for unfilled glue), screw pumps (mainly used for filled glue, wear-resistant), plunger pumps (also known as ceramic pumps, super wear-resistant, but expensive). Therefore, when choosing a glue dispenser, everyone depends on their own products and the properties of the glue used to consider which pump is most suitable, Ruicheng Automation will recommend cost-effective equipment to customers based on their actual requirements <

2. Different sizes of dispensing volume: Relatively speaking, the minimum dispensing volume of the dispensing machine is larger than that of the dispensing machine, and the maximum dispensing volume of the dispensing machine can reach more than ten to twenty grams per second, while the dispensing machine has a smaller dispensing volume. Some dispensing machines can achieve a minimum dispensing volume of 0.001g.

3. Different dispensing accuracy: Relatively speaking, the dispensing accuracy of the dispensing machine is higher than that of the dispensing machine

4. Different applicable adhesives: Generally speaking, the dispensing machine is mainly suitable for two-component AB adhesives such as silicone, epoxy resin, crystal glue, polyurethane, and other two-component adhesives. And the glue dispenser is mainly suitable for single component glue, such as UV glue, EPOXY (black glue), white glue, EMI conductive glue, instant glue, silver glue, red glue, solder paste, heat dissipation paste, solder paste, transparent paint, screw fixing agent, etc. In recent years, due to technological progress, glue dispensers are no longer limited to only suitable for single component glue. Currently, there are also many glue dispensers that can be used for two-component glue.

In recent years, industrial automation has developed rapidly. Many companies use glue machines instead of manual labor. The use of glue dispensers can save labor and improve production efficiency. Besides, what other electrical and equipment features does the automatic glue dispenser have

The advantages of automatic glue filling machine:

1. An automated mobile platform, with high efficiency in mixing and dispensing glue, and higher precision and automation compared to traditional glue filling processes

2. At the same time, the device also adopts computer programming control, with a high degree of intelligence. It adopts a touch type Chinese operation interface, which is simple and easy to operate. Can store 30 sets of glue parameters, and the same workpiece does not need to be reset

3. The glue amount, thickness, coating speed, dispensing time, and stopping time can all be set as parameters, with stable glue output and no leakage of glue

4. Automatic glue filling machine can save labor very well, and one device can achieve the production capacity of traditional 5-6 people

5. The automatic glue dispenser can be proportioned according to needs, achieving simultaneous mixing and glue filling, greatly saving glue water

6. Double barrel design, A glue and B glue are stored separately to ensure that the glue does not solidify when left for a long time. Using dynamic or static mixing to achieve uniform and thorough mixing

Equipment performance of automatic glue filling machine

1. Equipment purpose: It can be suitable for various types of glue, and can freely dispense various amounts of glue. The glue dispensing ratio, dispensing amount, and dispensing speed can be freely set by the touch screen

2. Adopting a volumetric metering type steel loading pump that is not affected by changes in material liquid viscosity, it can perform stable and high-precision metering and dispensing

3. When the glue contains hard fillers, a pump should be used to ensure that long-term use does not affect the accuracy and ratio of dispensing

4. When selecting dynamic mixing, a new type of mixer is used, and multi-layer stirring paddles are used for forced mixing to ensure uniform mixing

5. Adopting dual servo drive, A agent pump and B agent pump are respectively driven by a servo motor, and signal interfaces are reserved, which can be directly connected to automation equipment such as robotic arms

The overall equipment design is compact, and the operation is simple and convenient

The above is a complete introduction to the advantages and equipment performance of automatic glue filling machines. Helishi is a factory enterprise that integrates technology research and development, equipment manufacturing, and sales. Our main products include non-standard automation equipment, fully automatic dispensing machines, automatic dispensing machines, and other automated production equipment. We welcome everyone to come and inquire.

In industrial manufacturing, there are automated machines specifically designed to control fluids and apply them in drops or as a coating onto the surface or interior of products. These include dispensing machines such as potting machines, coating machines, and glue dispensing machines. So, what is the difference between a potting machine and a dispensing machine?

A potting machine, also known as an AB glue potting machine, is an automated device specifically designed to control fluids and apply them in drops, costings, or for potting inside or on the surface of produces. The purpose is to achieve effects such as sealing, fixing, and waterproofing. It generally uses two-component adhesives. A dispensing machine, also referred to as a glue dispensing machine, drop dispensing machine, or glue application machine, is also used to control fluid application. It applies fluids in drops or coatings onto product surfaces or interiors and can perform 3D or even 4D path dispensing with high precision, accurate positioning, precise glue control, no stringing, no leakage, and no dripping.

Dispensing machines are mainly used for accurately applying adhesives, paints, or other liquids to precise locations during product manufacturing. They can perform dotting, line drawing, circular or arc-shaped dispensing.

Key differences between potting and dispensing machines:

Main difference: Potting is used for products that require large volumes and large surface areas of adhesive. Dispensing is more suitable for accurate, small-scale applications requiring precise control.

Use case: Potting machines are ideal for large-volume, wide-area applications. However, they are more expensive than dispensing machines. If monthly usage is under a few hundred kilograms, potting machines are typically not considered; manual operation or dispensing machines are preferred.

Detailed differences:

1.Glue Control Mechanism: Most dispensing machines on the market use air pressure to control glue output. Although some newer models have moved away from air pressure, potting machines primarily rely on metering pumps. These control the glue flow rate by adjusting pump speed. Common pump types include: Gear pumps – suitable for adhesives without fillers. Screw pumps – suitable for filled adhesives, wear-resistant. Plunger pumps (ceramic pumps) – highly wear-resistant but expensive. The choice of pump depends on the glue's characteristics and application needs. HOLS Automation can recommend the most cost-effective equipment based on customer requirements.

2.Glue Output Volume: Potting machines generally have a larger minimum glue output than dispensing machines. They can dispense 10–20+ grams per second, while some dispensing machines can go as low as 0.001g.

3.Dispensing Precision: Dispensing machines offer higher precision in glue application compared to potting machines.

4.Glue Type Compatibility: potting machines are mainly used for two-component adhesives such as: silicone, epoxy, polyurethane, crystal glue, etc. Dispensing machines are typically used for single-component adhesives, including: UV glue, EPOXY (black glue), white glue, EMI conductive glue, instant adhesives, silver glue, red glue, solder paste, thermal paster, conformal coatings, screw locking adhesives, etc. However, due to technological advancements, many modern dispensing machines can now also handle two-component adhesives.

According to the editor of HOLS Automation (Suzhou), it depends on the type, such as manual dispensing machine, semi-automatic glue dispensing machine, fully automatic dispensing machine, desktop type glue dispensing machine, vision glue dispensing machine, online glue dispensing machine, etc. For specific reference, please see below:

1. Manual glue dispensers usually cost a few hundred dollars.

2. Semi-automatic glue dispensers, currently priced at around one to two thousand dollars.

There are many types of fully automatic glue dispensers, and their prices vary depending on the classification. Even different brands and configurations have different prices. For example:

3. Desktop type glue dispensers are small in size, easy to use, and their prices range from several thousand to tens of thousands of dollars.

4. Vision glue dispensers, normally have large size, equipped with a CCD vision system, and have high work efficiency. Their prices are generally between 100-200 thousand.

6. Online glue dispensers are usually used on assembly lines and are responsible for dispensing glue in the entire production process. Currently, domestic prices from 150 to 300 thousand.

How to Purchase

Before buying a glue dispensing machine, there are two things you need to clarify first:

1. Basic characteristics of the glue used

a) What kind of glue is it, single-component or two-component (AB glue),

b) If it is two-component, what is the weight ratio of AB glue,

c) The viscosity and density of the glue,

d) How long does the glue take to start curing approximately and the full curing time,

e) How is the glue packaged,

2. Requirements for the potting process

a) What are the potting accuracy requirements and how much glue is used for each product,

b) Is the glue used for potting, bonding, insulation, moisture-proofing, or dotting,

c) How should the potting operation be carried out,

Selection Principles

1. Glue: Single-component glue uses a single-component glue dispensing machine, AB glue uses a two-component glue dispensing machine, PU glue uses a PU glue dispensing machine, and UV glue uses a specific syringe for dispensing.

2. Glue dispensing process: For general dispensing, semi-automatic glue dispensing machines (such as foot-pedal controlled ones) are used. For precise positioning and marking, desktop, three-axis, circle drawing, and other glue filling machines with automation functions are selected. The automation function of the dispensing machine is actually an auxiliary function. The dispensing machine mainly controls the glue, and other functions can be achieved with the help of automated mechanical arms.

3. Work efficiency and environment: If the product quantity is small and efficiency is not a priority, a manual glue gun is used. For outdoor work, a glue gun is used. If precise control of the glue output is required, a machine is used. If automatic dispensing is required, a machine with automation functions is used.

4. Cost: There are various dispensing solutions. Not all glue dispensing requires the use of machines, and not all automated dispensing must be attached to machines. The editor of HOLS Automation suggests considering cost. If a certain type of glue requires a machine with a very high price, consider changing the glue. If the price of a dispensing machine with automation functions is too high, consider moving the product position instead of the glue filling nozzle.

An electric water pump is a type of water pump driven by an electric motor. It utilizes an electronic control system to precisely manage the pump’s operation, adapting to the requirements of various operating conditions. Below is an overview of its functions and its applications in the automotive industry:

Functions of the Electric Water Pump:

Precise control of coolant flow: The electric water pump can accurately adjust the coolant flow based on the engine’s actual operating temperature. During cold starts or low-load operation, the pump reduces the coolant circulation speed, allowing the engine to quickly reach its optimal operating temperature. This shortens the warm-up time, reduces fuel consumption, and lowers exhaust emissions. Conversely, during high-load operation or in high-temperature environments, the electric water pump increases the coolant flow to ensure sufficient engine cooling, maintaining normal operating temperatures and preventing overheating.

Enhancing cooling system efficiency: Unlike traditional mechanical water pumps, the electric water pump is no longer dependent on the engine’s rotational speed. It can precisely adjust its operating speed based on the specific requirements of the cooling system, achieving more efficient cooling performance.

Optimizing engine performance: By accurately controlling the engine temperature, the electric water pump helps optimize the combustion process, improving fuel economy and power output. A stable operating temperature also reduces thermal stress and wear on engine components, thereby extending the engine’s service life. Additionally, the use of an electric water pump enhances engine responsiveness and improves the vehicle’s acceleration performance.

Basic Working Principle of the Electric Water Pump:

Electric drive: The electric water pump is directly driven by an electric motor, allowing for precise adjustment of flow and pressure as needed, without being restricted by the engine’s rotational speed.

Control system: The electric water pump is integrated with an electronic control system capable of real-time monitoring and regulation of coolant flow, temperature, and pressure. This precise control capability enables the pump to automatically adjust its operation according to different working conditions.

Feedback mechanism: Sensors equipped with a feedback mechanism monitor the system’s current operating status and send data back to the control unit, enabling immediate adjustments to ensure optimal operating efficiency and thermal management performance.

High-efficiency operation: the electric water pump can start and stop based on actual demand, avoiding the energy waste commonly associated with traditional mechanical pumps under low-load conditions, thereby enhancing the overall energy efficiency of the system.

Advantages of the Electric Water Pump:

High efficiency and energy savings, avoiding energy waste under low-load conditions.

Its ability to precisely regulate coolant flow is crucial for improving thermal management efficiency, particularly in electric vehicles.

The compact and flexible design of the electric water pump allows it to be installed within the limited space of electric vehicles, facilitating optimized vehicle design.

The electric water pump operates with low noise levels, contributing to a better driving experience.

High reliability: without the need for belts or other mechanical components, the system exhibits lower maintenance requirements and reduced failure rates.

In electric vehicles, the electric water pump can independently control the cooling of the battery and other critical components, significantly improving overall system efficiency.

The pump can also work in conjunction with heating systems to achieve more effective temperature regulation in cold conditions.

Application Advantages of the Electric Water Pump in New Energy Vehicles:

The intelligent control technology and electric drive mode of the electric water pump significantly enhance the cooling efficiency and energy efficiency of new energy vehicles, while effectively handling various complex operating conditions.

Battery thermal management: The electric water pump can precisely regulate battery temperature, ensuring that the battery operates within an optimal temperature range. This helps extend battery lifespan and improves vehicle range.

Multi-component cooling: In electric vehicles, multiple components—such as the motor, power electronics, and battery—may require separate cooling circuits. The electric water pump can independently manage different cooling loops, thereby increasing the overall system efficiency.

Flexible installation: Free from the constraints of mechanical connections, the electric water pump can be installed virtually anywhere within the vehicle, maximizing the utilization of available space in electric vehicle design.

Low noise: Compared to traditional mechanical water pumps, electric water pumps operate with significantly lower noise levels.

High adaptability: The electric water pump can flexibly operate under various environmental conditions. For example, under low-temperature conditions, it can work in conjunction with heating systems to protect the battery and ensure the overall performance of the system remains unaffected.

Electric water pumps, with their intelligent control capabilities, high efficiency, energy savings, and compact design, are gradually replacing traditional mechanical pumps. They are showing great potential, particularly in new energy vehicles and precision industrial control sectors. With future advancements in materials technology and intelligent algorithms, the application scope of electric water pumps is expected to expand even further.

HOLS Automation, with many years of expertise in the field of intelligent manufacturing, offers automated assembly production lines for electric water pumps. We welcome your inquiries.

The development of automotive suspension systems has continuously pursued improvements in comfort, safety, and handling performance. Active suspension, a new type of suspension system controlled by computers, has emerged over the past decade. It dynamically adjusts the suspension's stiffness, damping, and height based on the vehicle's driving conditions and road surfaces to deliver optimal comfort and handling. Air suspension, magnetic suspension, and hydraulic suspension are currently the mainstream active suspension technologies on the market. What are their differences and advantages?

Different working principles:

Air Suspension: Composed of air springs and adjustable dampers.

Height adjustment: The vehicle’s height is determined by the length of the air springs. By filling the air springs with an appropriate amount of gas, the vehicle’s ride height can be raised or lowered. Damping control: Achieved by adjusting the cross-sectional area of the valve connecting two hydraulic cylinders. When the valve’s opening is reduced, fluid flow between the cylinders is restricted, increasing damping force.

 

Magnetic Suspension: The shock absorber fluid contains magnetorheological fluid (MR fluid), a mixture of hydrocarbons and microscopic iron particles. Under normal state, there is no electricity, the iron particles are randomly dispersed, thus behaving like a conventional damper. When an electric current generates a magnetic field, the particles instantly align into chains, thickening the fluid and increasing damping force. Damping precision is achieved by controlling the current intensity.

 

Hydraulic Suspension: Each wheel is equipped with a hydraulic sub-pump.

Height adjustment: Achieved by controlling the amount of hydraulic fluid injected into the cylinders, which raises or lowers the vehicle's ride height.

Damping control: Implemented by adjusting the valve orifice size within the hydraulic system. Reducing the valve opening restricts fluid flow, thereby increasing damping force.

 

Functional Features & Applications:

Air Suspension: Capable of adjusting both ride height and damping, it optimizes performance for varying road conditions and driving demands. Examples include: Raising the chassis for improved ground clearance during off-road driving; Lowering the vehicle at high speeds to enhance stability; Providing stiffer support during cornering; Delivering a soft, vibration-filtering ride in normal driving conditions. As a fully active suspension system, it is ideal for vehicles prioritizing comfort and versatility, such as luxury sedans, SUVs, and coaches. It excels in complex terrains by balancing adaptability, ride comfort, and handling precision.

 

Magnetic Suspension: It can only adjust damping (not ride height), making it a semi-active suspension system. Ultra-fast response: Its millisecond-level adaptability allows it to instantly adjust to road changes, balancing ride comfort and handling stability. Targeted applications: Ideal for high-performance vehicles demanding both precision and refinement, such as sports cars and luxury sedans. Driving experience: The rapid damping adjustments excel in urban traffic and high-speed scenarios, delivering exceptional agility and stability without compromising comfort.

 

Hydraulic Suspension: Capable of adjusting both ride height and damping, it qualifies as a fully active suspension system. Compact design: space-efficient layout under equivalent operating pressures, simplifying installation. Fail-safe reliability: gradual fluid leakage (even with seal degradation) minimizes sudden failures, ensuring higher safety. Harsh-environment resilience: maintains stable operation in extreme temperatures, heavy loads, or rugged terrains. Applications: Optimized for vehicles demanding exceptional load capacity and robustness, such as coaches, heavy-duty trucks, and construction machinery. Its durability and adaptability make it indispensable for industrial and commercial use cases.

 

Pros & Cons Comparisons:

Air Suspension

Pros: Superior comfort, effectively filters vibrations for a smooth ride. Adjustable ride height to adapt to diverse terrains (e.g., raising for off-road, lowering for highway stability). Enhanced handling to balance agility and stability during dynamic driving.

Cons: Complex structure: higher risk of mechanical failures compared to conventional systems. High maintenance costs: requires periodic replacement of rubber components (e.g., air springs, seals). Heat sensitivity: overheating of compressors/pumps may shorten component lifespan.

 

Magnetic Suspension

Pros: High response speed, allowing quick adaptation to changing road conditions. High adjustment precision, providing more accurate damping control. High reliability, with reduced wear on mechanical components.

Cons: Unable to adjust vehicle ride height. Relatively high cost, with complex manufacturing and maintenance.

 

Hydraulic Suspension

Pros: Strong load-bearing capacity, capable of handling heavier weights. Compact size, making it easy to install and arrange within the vehicle. High safety, with hydraulic fluid leakage occurring slowly, allowing time for response. Stable performance even in harsh environments.

Cons: Relatively slow response speed. Limited adjustment range compared to air suspension. Lower manufacturing cost, but higher maintenance cost.

 

HOLS Automation provides intelligent chassis solutions, Active suspension includes air suspension, magnetic suspension, hydraulic suspension and others automated production line, also control by wire one box, EMB production lie, etc.

Recently, a delegation from a Global Fortune 500 Tier1 enterprise in Europe made a special visit to HOLS Automation. As a strategic priority evaluation target for the enterprise's customized automation initiatives in the Asia-Pacific region, two parties conducted in-depth technical consultations centering on intelligent product line solutions for steer-by-wire systems.

The visit not only recalibrated foreign enterprise’s technical perception of localized intelligent manufacturing, but also showcased HOLS’s end-to-end solution capabilities in steer-by-wire technology through a systematic demonstration spanning all process workstation.

During the demonstration, HOLS presented nearly 30 process-specific workstations along its steer-by-wire production line, comprehensively mapping the complete value chain from designing and manufacturing to testing. These installations not only manifested HOLS' proven competence in automated equipment integration, but more fundamentally revealed the company's multi-dimensional technical architecture encompassing precision control systems, high-efficiency production ecosystems, and intelligent management platforms. The client formally commended HOLS' technological prowess and product innovation capabilities, expressing explicit intent to establish a strategic partnership encompassing the entire product lifecycle.

During the facility tour at HOLS’ state-of-the-art R&D complex, the delegation expressed strong appreciation for the company's strategic commitment to research infrastructure and tangible deliverables. This engagement conclusively validated HOLS' formidable competitive edge in technological innovation and product development cycles, as evidenced by its proprietary IP portfolio and V-model development frameworks.

During the strategic dialogue, HOLS executives comprehensively delineated the company’s R&D prowess and custom engineering capabilities. Leveraging decades of technological accumulation and industry-specific expertise, HOLS delivers tailored automation solutions that precisely address clients' differentiated requirements. Particularly regarding steer-by-wire production lines, the demonstration revealed HOLS' unique insights across three critical dimensions: process design engineering, system integration architecture, and intelligent control algorithms. The client formally recognized these technological differentiators through third-party validation benchmarks, expressing concrete collaboration intent spanning emerging mobility domains.

HOLS’ steer-by-wire product portfolio encompasses comprehensive solutions including but not limited to Steer-by-Wire (SbW) systems, Brake-by-Wire (BbW) architectures, and Suspension-by-Wire (SbW) platforms. These systems not only demonstrate technological leadership, but have also validated operational excellence with MTBF (Mean Time Between Failures) exceeding 50,000 hours in field applications under environmental stress conditions.

HOLS will steadfastly uphold its innovation-driven ethos and customer-centric philosophy, maintaining strategic focus on technological advancement and product development cycles. This dual commitment will not only consolidate the company's technological leadership in steer-by-wire domains, but also propel the evolution of custom automation technologies via continuous implementation.

Steer-By-Wire (SBW) is an advanced steering technology that replaces traditional mechanical connections with electrical signals. By eliminating the physical drive shaft between the steering wheel and the wheels, it achieves steering control entirely through sensors, electronic control unit (ECU), and actuating motors.

 

Compared to traditional steering system, Steer-By-Wire (SBW) offers advantages including lighter wight, reduced road shock, lower noise, and enhanced vibration isolation. By eliminating the mechanical connection between the steer wheel and wheel, SBW enables more flexible vehicle architecture design. It dynamically adjusts steering assistance intensity and characteristics based on real-time data such as vehicle speed, steering angle, and lateral acceleration, delivering firmer steering feedback at high speed and lighter maneuverability at low speed, thereby enhancing both safety and driving comfort. Additionally, SBW seamlessly integrates with active safety systems (e.g., Electronic Stability Program (ESP), Automatic Emergency Braking (AEB)) and significantly reduces mechanical components like steering columns, universal joints, and drive shafts, which lowers maintenance costs and improves system reliability by minimizing failure risks.

 

Safety Enhancements and Redundancy Design:

By eliminating mechanical components like steering columns, SBW prevents potential injuries caused by steering column intrusion during collisions. The intelligent ECU continuously monitors driving conditions to assess the rationality of driver inputs and automatically makes compensatory adjustments. In extreme scenarios, the system proactively stabilizes the vehicle to enhance crash safety.

Redundancy mechanisms - including dual power supplies, redundant communication channels, and duplicated hardware components to ensure the system capability. Even if critical modules fail, the system retains essential steering functionality to maintain driver control.

 

Improve driving characteristics and enhance maneuverability:

The SBW system dynamically adjusts the steering ratio based on real-time parameters such as vehicle speed, traction control status, and driving conditions. At low speeds, a lower steering ratio reduces the required steering wheel rotation angle for tight turns or parking maneuvers. At high speeds, an increased steering ratio optimizes straight-line stability while maintaining precise directional control, thereby balancing agility and confidence across all driving scenarios.

 

Enhancing Driver Road Feeling:

Since there is no mechanical connection between the steering wheel and wheels, the driver's "road feel" is simulated. The most relevant information reflecting the vehicle's actual driving state and road conditions can be extracted from signals and used as a control variable for the self-aligning torque of the steering wheel. This ensures that the steering wheel provides only useful information to the driver, delivering a more realistic "road feeling."

 

Optimized Cabin Space Configuration:

By removing traditional mechanical components like steering columns, Steer-By-Wire (SBW) significantly enhances packaging efficiency for cabin subsystems. This liberation of spatial constraints allows for innovative interior design solutions, such as enabling a greater telescopic adjustment range for the steering wheel and optimizing driver’s seat ergonomics through expanded legroom.

 

High-effective response and energy conservation:

The transmission delay of electrical signals is as low as the millisecond level, and the response speed far exceeds that of traditional hydraulic or electric power steering systems (EPS). There is no mechanical transmission loss, and the energy utilization efficiency is higher.

 

Industry research shows that 2025 will be the landmark year for Steer-By-Wire mass production. With the maturation of regulatory frameworks and accelerated adoption of intelligent vehicle technologies, SBW systems are expected to enter a phase of rapid commercialization, creating a promising growth trajectory. Domestic Tier 1 suppliers demonstrating technological leadership and rapid product implementation capabilities—particularly those with vertically integrated SBW solutions—are positioned to capture significant market share. As the market matures, intensifying competition will drive manufacturers to prioritize R&D innovation, optimize system performance and reliability, and achieve cost efficiencies through scalable production, ultimately delivering compelling value propositions to OEM partners.

 

Steer-By-Wire (SBW) technology is undergoing continuous upgrades and refinements:

To meet higher safety and reliability requirements, SBW systems are optimizing redundancy designs, such as multi-layer safety redundancies including dual power supplies, dual communication channels, dual hardware, and dual software. On the other hand, road feeling simulation technology is being enhanced to provide more realistic and driver-aligned feedback. Meanwhile, steering motor performance is improving to meet higher power demands and achieve more precise control.

 

As a core component for advanced automatic driving, SBW will deeply integrate with:

Automatic driving systems (e.g., automated parking, battery-swap alignment)

Vehicle dynamics control systems (e.g., adaptive cruise control, lane-keeping)

This integration enables automated steering control, enhancing overall intelligent driving capabilities through precise and reliable steering support.

 

HOLS has been deeply engaged in the intelligent manufacturing field of intelligent chassis production line for many years, with a professional and efficient technical team and rich mature and stable case experience, to provide customers with customized intelligent equipment production line, to help the rapid development of intelligent chassis, and to provide intelligent solutions for SBW.