With the rise of domestic new energy vehicles, a variety of new technologies have been gradually applied. Among them, the new technology of headlights can be said to be the most obvious piece that can be perceived by many consumers.
Nowadays, all kinds of headlights are equipped on new energy vehicles, and even more, fancy headlight technology has become an important selling point for many high-end positioning new energy models. Even Audi, known as the "lamp factory", has lost its boasting capital in the face of today's domestic new energy vehicles.
Why is the headlight technology of new energy vehicles advancing so fast?
As early as more than 10 years ago, when China's auto market was still in the early stage of rapid development, foreign brands were constantly pouring into China, and at that time, independent brands were still working hard in the relatively low-end market, so the competition in technology was not very fierce at that time.
Even five or six years ago when new energy vehicles have not fully risen, many low-profile models below 100,000 are still using the combination of halogen lamps + lenses with backward technology but cheap, xenon headlights are still an important configuration of high-end models, and now the popular LED headlights are still in a popularization period before large-scale diffusion.
This is obviously closely related to the technical level of the headlights themselves, but behind this, there is a very important related factor, that is, the power consumption of the car.
At that time, fuel vehicles still occupy a dominant position, and the on-board electrical appliances of these fuel vehicles are basically driven by the electric energy generated by the automobile engine to drive the generator, so the electric energy supply capacity on the car is very limited, and basically can only meet the power demand of various on-board controllers and basic electrical equipment such as car machines and car lighting.
Nowadays, a variety of technologies such as matrix headlights and smart headlights, which are popular in electric vehicles, were placed in the environment at that time, and the load on the electric energy of the whole vehicle was very huge. And now with the power battery of new energy vehicles, the supply capacity of on-board electric energy is completely incomparable, and the abundant electric energy provides a very good foundation for the technological progress of headlights.
In addition, the further improvement of the intelligent level of new energy vehicles has made headlight technology also benefit from it. For example, various radars on the car body provide powerful perception and decision-making capabilities for the intelligent control of headlights, and intelligent headlights can have richer application scenarios.
In addition, the maturity of LED headlight technology also improves the luminous efficiency, lower energy consumption and longer life of the lamp group, providing good conditions for the headlights to achieve more changing functions. On the basis of the LED headlights, the engineers derived the matrix LED light group, which is accurately calculated by sensors and driving computers to achieve a variety of lighting effects.
What are the black technologies of today's car lights?
With the support of high energy supply and high computing power of new energy vehicles, the adaptability of headlights to automotive lighting scenarios has been further improved, and even no longer simply satisfying the single scene of vehicle lighting, and more ways to realize vehicle use scenarios have been developed. The following are all very common in today's new energy vehicles, or new technologies that are rapidly becoming popular.
Entry-level: Automatic headlights
Its principle is very simple, that is, it detects the ambient light through a photosensitive sensor such as a photoresistor, compares it with the set light intensity, and the vehicle controller decides whether the headlights are turned on or not, which greatly simplifies the driver's operation and allows the driver to focus on smooth driving. With the continuous reduction of the cost of lights, the continuous improvement of reliability and life, automatic headlights have become more and more popular, and now all models below 100,000 can use automatic headlights.
Advanced: Adaptive high and low beams
Its function is to automatically switch between high beams and low beams according to the current driving speed of the vehicle and the road conditions ahead, so as to avoid accidents caused by the driver of the opposite vehicle due to the glare of the high beam. Its principle is to identify other vehicles, pedestrians and other obstacles in front of the vehicle through the camera of the driving assistance system, so as to determine whether it is necessary to switch the light source, so the vehicle needs to have the driving assistance ability of visual recognition. Therefore, this equipment is basically installed on models with Level 2 driver assistance equipment.
High class: Adaptive lighting headlights
It is a more powerful technology than adaptive high and low beams, which requires not only driver assistance capabilities, but also multi-pixel LED matrix headlights. It can change the shape of the emitted light according to driving information such as weather conditions, external light, and road conditions, such as shifting the lighting area to the same side when turning, changing the light shape when detecting a passing car or pedestrian in front of it to avoid direct sunlight on vehicles and pedestrians, automatically extending the headlight projection distance forward on highways, or automatically expanding the light range at intersections.
Flagship: intelligent interactive headlights
This is a typical technical representative of the headlight, which extends from a single function of providing illumination to providing a variety of interaction capabilities outside the vehicle. It relies on multi-pixel LED headlights and intelligent cockpit technology, which can realize the multi-pixel matrix LED headlights, by changing the lighting mode of the lamp matrix, turning the lights into an external screen, displaying a variety of patterns, such as children, arrows and even user-defined hearts, texts, etc., and even playing dynamic lights, or projecting them directly to the outside of the car. It can be said that it is a concentrated display of the integration of smart headlight technology.
brief summary
With the development of automobiles, car lights have also experienced the era of halogen lamps, xenon and now LED and laser lights. Its function has also evolved from traditional lighting to atmosphere creation, body beautification, and even emotional interaction. With the advancement of vehicle electrification and intelligence, the shape and technological content of domestic new energy lamps have been further improved, and what will be the future trend?