Learn about display technology on HUD auto driving glass

Learn about display technology on HUD auto driving glass


Today, cars are equipped with a technology that displays on the Head-up Display – HUD. What is this technology and how does it work?

Display technology on HUD driver glass

The full name of the technology displayed on the steering glass (or windshield) Head – up Display. This is a technology that has been used on fighter aircraft. The special origin of this name is also derived from the mission requirements of the pilot, which is able to directly monitor the information on the control screen right on the steering wheel, without having to lose bent over to follow the home screen. Initially, the information display on the HUD was only used on military equipment. However, with the features that this device brings are useful and practical, it is increasingly popular and widely used.

Technology displayed on the HUD steering glassTechnology displayed on the HUD steering glass

From this special feature, people have gradually expanded the scope of applying HUD technology from aircraft to other vehicles, including cars. With technology applied to cars, drivers will experience many new and interesting feelings during the vehicle’s operation.

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The effect of HUD information display unit

As mentioned above, the display technology on the HUD allows the driver to track the information of the control screen on the car’s windshield. This aids in observing and ensuring visibility while driving and can still receive information such as vehicle speed, revolutions, engine indicators, coolant temperature … without having to Bend down.

Information displayed on the virtual screen in front of the windshieldInformation displayed on the virtual screen in front of the windshield

In situations where you have to drive on highways or dangerous roads, driving while crouching down to look at the taplo can cause an accident that you did not anticipate. Not to mention the night driving is very easy to cause drowsiness and vision control gas, this will be even more dangerous for the driver. Because of these things, the technology displayed on the HUD steering glass will be an effective solution to assist the driver in emergency situations and help control the speed of the vehicle.

Accurate display of driving speed

When using the information display for cars, it has the function of showing the current speed of the car is how much. That will help the driver adjust the speed appropriately to avoid driving too fast causing unsafe. In addition, the HUD device also has the function of recording the speed history of the vehicle so it can be retrieved to provide data or collate in case of need.

HUD has the function of accurately displaying the speed of the running vehicleHUD has the function of accurately displaying the speed of the running vehicle

Show the machine revolutions speed

If you install HUD for your car, you will be informed how much the current engine speed is via the display. Many drivers sometimes do not notice the speed of rotation but if HUD will show you can adjust accordingly. Many cases do not pay attention to the speed of rotation is how much. This results in a vehicle with a higher engine rpm, causing damage to the machine and causing fuel consumption. Using HUD, you will be informed of the engine speed if over the prescribed level will be alerted to the driver to adjust.

Notice the coolant temperature

Engine cooling water acts as an air conditioner for the engine system to transfer heat from the engine to the water cooling tank. If the water cooling system has problems, it will directly affect the operation of the machine. But if your car has a HUD installed and the temperature is too high above 115 degrees Celsius, the screen will automatically alert you. From there, users can control and timely overcome the situation of excessive water temperature.

HUD will alert if the engine coolant temperature exceeds the prescribed levelHUD will alert if the engine coolant temperature exceeds the prescribed level

Show the throttle opening

HUD will display the throttle opening through the screen to notify the vehicle speed and engine speed to the driver to help them grasp to adjust the vehicle safely.

Displays fuel consumption

The driver displays information on the glass can also determine the fuel consumption to notify users on a specific distance. This means that from the start to the end of the journey, the fuel consumed will be announced on the HUD screen.

Speed ​​warning

Some drivers on highways often have difficulty controlling their speed, so there are many potential dangers. When installing the HUD device will help alert if speeding up by emitting a sound and the screen flashes brightly.

Notice the voltage of battery (battery)

The device displays information on the glass also has the function to notify the battery voltage if the voltage is below 12V by flashing on the HUD screen. That will make users know how the battery voltage of the car and have solutions to increase battery life.

Some other functions

In addition to the above, HUD also has the function to automatically detect and notify error codes stored from ECU when HUD starts. In addition, HUD can enable or disable alarm sounds.

HUD can automatically detect and notify error codes stored from ECUHUD can automatically detect and notify error codes stored from ECU

Principle of operation

The display technology on the HUD steering glass is displayed as a virtual projector screen projected directly onto the windshield of the car for the driver to follow the information. The standard screen of this technology is usually 130 x 60cm in size, which is integrated through two systems: an information display system on the control panel, and one that displays information right in front. head the vehicle for the driver to observe and timely handle in emergency situations.

The virtual screen displays indicators and directions arrowsThe virtual screen displays indicators and directions arrows

The HUD system is installed with compact visual boxes, which can be installed on many different types of windshields rather than expensive glass. From the HUD system, the view in front of the road the vehicle is traveling will be reproduced on the windshield. There will appear arrows, lanes, and a number of different symbols that represent vehicle information. The distance between vehicles traveling on the road is also shown on this screen for the purpose of balancing and proactively adjusting the distance accordingly.

If you are wondering which way to go, your car’s HUD technology will be positioned as on a map and the system will help you figure out the way you need to go. Compared to looking at a map, you will see an interesting feature of HUD technology that is more realistic. The running tracks displayed on the steering glass will coincide with what you see in reality in front of you. Therefore, you will not have to worry about getting lost again.

The driver will see information on the screen that matches the actual sceneThe driver will see information on the screen that matches the actual scene

Not only that, HUD technology also has the function of displaying virtual reality information. Specifically, in luxury cars, drivers can see a clear image at a distance of 8m, from the position of sitting in the car through the windshield to the actual view outside.

In some autonomous driving models, this technology is also applied. Autopilot helps to improve the control of the car during the moving process, but not without minus points. Drivers will be passive in receiving information and controlling vehicle travel. Because of these characteristics, HUD technology contributes significantly and overcomes the limited difficulties of this autopilot.

Limitations when using the information display on the HUD steering glass

All information informed by HUD is displayed on the windshield surface, so sometimes the information on the screen may interfere with the view. Even some drivers are too focused on paying attention to the information displayed can be distracting while driving and cause danger. Therefore, when users use HUD, they need to focus on driving, quick observation and sharp handling skills.

Experience buying a HUD driver display kit

Although very effective, but currently the technology displayed on the HUD steering glass is only installed on high-end cars such as BMW X5, Chevrolet Camaro … However, the HUD kit also has retail on the market. With about 3 – 7 million depending on the quality of each line, you can install for your driver this technology to ensure safety and convenience in the process of vehicle control. Currently on the market there are many different types of products, which causes many difficulties in choosing. So when buying information displays on the glass from the phone to note what?

Content displayed

HUD display content is the most important factor that benefits and product quality, therefore, depending on the needs of users to choose the right product. Buyers should find out and check the product carefully to avoid buying fake, poor quality goods. Buyers should choose a product capable of displaying the full range of functions on the steering glass surface including:

Select products with fully functional display on the steering glassSelect products with fully functional display on the steering glass

  • Show the current speed at runtime.
  • Displays the speed of the machine reached at the time of running so that it can alert if the rpm exceeds the preset limit.
  • Notification of engine coolant temperature, if exceeding the specified level, causing danger to the engine will automatically alert.
  • Display the throttle opening from which to determine vehicle speed and engine speed clearly.
  • There are functions to display fuel consumption on a specific journey or distance for users to accurately grasp information.
  • There is a speed warning if the driver exceeds the prescribed level through a buzzing and flashing screen.
  • There is a function to notify the battery voltage status so that users can promptly handle it if there is a problem.
  • There is a function to turn on or turn off the warning sound.
  • The function automatically detects and reports error codes when HUD starts up.

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Sharpness of the image

The sharpness of the image is also one of the factors that buyers should keep in mind before choosing a product. You should buy products with good image quality, displayed on the clear and sharp steering glass. By doing so helps the driver to observe information easily and accurately to focus on driving and better road observation. Avoid buying low-quality products that make the image received on the steering glass blurred, making it difficult to observe so it can be dangerous to drive.

Should choose products for sharp imagesShould choose products for sharp images

Voltage used

Do not choose the product line that consumes too much power, affecting the electric system of the vehicle. So, choose the device that uses the right voltage level for the vehicle to help them operate well, most efficiently and save fuel.

Product price

Currently, the device that displays information on the driving glass has a lot of different types from many manufacturers with diverse models. Depending on the preferences, needs and financial ability, the buyer can choose the right product. Advice for buyers is not to choose products that are too cheap compared to the market. Because product quality is often reflected in their price. If you choose a product that is too cheap, it can be fake or fake so the quality of the product is not guaranteed. It is best to buy genuine, well-known brands at reputable facilities to ensure quality and price listed.

Do not buy products with too cheap prices will not guarantee qualityDo not buy products with too cheap prices will not guarantee quality

As such, before buying a product that displays information on the HUD steering glass, the buyer needs to consult and find out the product information. That will help you be able to buy the product that suits your needs, quality assurance and reasonable price.

Phong Vân

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