With the increasing demand of consumers, it is difficult for major manufacturers to win "victory" by playing price wars. Perhaps only by bringing easy-to-use and easy-to-use automotive technology to consumers can they bring core competitiveness. Then, in the face of the overwhelming publicity of the manufacturers, what new technologies are closer to our lives and can improve the quality of our vehicles? The editors have selected the fastest growing and most widely used technologies in recent years. Some representative mainstream technologies have been interpreted for everyone, including electronic equipment, engines and chassis. First of all, this article will be the first to introduce you - electronic technology.
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Intelligent driving service system
Technical features: Provide fast service to users through communication technology and service network
With the development of modern automobile and electronic technology, the major automobile manufacturers are not only the performance of vehicles, but how to provide consumers with smarter cars has gradually become a trend of technological development. In the past two years, major manufacturers have launched their own intelligent driving service systems. Although they have different names, in the final analysis, they are intended to provide users with more convenient and convenient services. At present, no matter whether it is an overseas brand or a domestic independent brand, there are many production cars that match the intelligent driving service system. Although it has not been widely applied, it is only a matter of time.
Principle and function introduction
The intelligent driving service system is a new system that comprehensively surpasses the functions of traditional car dashboards. Through advanced communication technology and a powerful service network, it brings great improvement in safety and driving convenience. In other words, this is a man-machine dialogue system. You can directly contact the operator in the service station through the in-vehicle communication system, tell your attendants about your needs, and let you do it manually.
At present, the key technology of the mainstream intelligent driving service system is the Telematics system, which connects the vehicle terminal (mostly GPS) and the service center through a wireless network to form a communication platform for providing information services, and analyzes the automobile and the vehicle by installing the terminal system in the vehicle. The various situations that occur outside the car, while collecting all kinds of information necessary for driving and driving, and communicating the corresponding information to the service center, with the help of the operator to provide corresponding services.
Technical differences and application levels
Technical differences: The technical principles are basically the same, but the names of the major manufacturers are different, and the services provided are also different.
Application level: such as Cruze, new GL8, Cadillac, Camry, Scorpio/Duke, Roewe 350 and other models have been applied
This intelligent driving service system will vary depending on the manufacturer. It mainly includes remote fault diagnosis, remote maintenance, operator service, Internet browsing, real-time traffic information, anti-theft tracking, emergency rescue services, and so on. At present, similar intelligent driving systems are not only owned by multiple joint venture brands, such as Toyota's G-BOOK, GM's Onstar, Nissan's CARWINGS, and so on. Many domestic independent brands have made breakthroughs in this respect. SAIC Roewe inkaNet , Huatai TIVI, Geely's G-NetLink, most of which have been applied in production cars, I believe that in the future, as people's demand for cars increases, the technology will play on more models.
By comparing the intelligent driving system of independent and joint venture brands, the mainstream trend of domestic independent brands is 3G vehicles represented by inkaNet. Such 3G intelligent service systems with powerful communication and information acquisition functions tend to “applyâ€. . In contrast, systems such as Anjixing Onstar and CARWINGS Zhixing+, which can achieve fault diagnosis and are more effective in terms of distress and anti-theft, reflect the practical understanding of the word “safetyâ€.
It is true that there is no free lunch in the world, and enjoying such a smart driving service system, MONEY in the pockets of consumers will also be reduced. However, because it is still in the test period, the price of products that are too high or too low will affect the popularity of the future. Currently, only General Onstar has a clear pricing system (as shown in the table below). It is also gratifying that many manufacturers have given free services for a certain period of time. For example, Toyota and Lexus owners with G-BOOK can enjoy the same free service time as the vehicle warranty period, with universal Onstar Anjixing. The owner can enjoy one year of free service.
Although the models of the smart driving service system have been used, it is still rare. However, from the current situation that many car companies have launched their own products and applied to the models, the system is a trend of future car development, and with people buying cars. With the increase in demand, smart cars will become more and more popular with consumers. The expansion of demand in the consumer market will inevitably lead more manufacturers to develop their own intelligent service systems. Therefore, the new era of universal application of this technology in mass production vehicles is not far away.
Adaptive cruise system
Technical features: The system can automatically change the speed according to the distance of the preceding vehicle while the vehicle is running.
Principle and function introduction
The cruise control system believes that everyone is no stranger. It relies on the driving computer (ECU) to control the fixed speed of the vehicle. When the vehicle is in cruise state, the fuel supply of the engine is controlled by the vehicle computer. The driving resistance of the car constantly adjusts the fuel supply so that the car always maintains the set speed, without the need to operate the accelerator pedal, and the cruise is automatically released when the driver steps on the brake pedal. In general, the cruise control system can provide a more relaxed journey for long-distance drivers.
However, the cruise control system also has its own shortcomings. For example, in the more complicated road conditions, the front car often has a process of deceleration and acceleration, so the driver who drives the fixed-speed cruise vehicle will encounter the pedal-- Turn on cruise control - step on the pedals again... infinite loops and cumbersome movements. In order to solve the shortcomings of this system, smart car engineers developed an adaptive cruise control called ACC based on fixed-speed cruise.
To be fair, adaptive cruise can be called a "fool" cruise control system, which can automatically change the deceleration or acceleration of the vehicle according to the driving speed of the preceding vehicle, so that the driver can completely release the feet and reduce the fatigue. At present, this technology has been widely applied to a variety of mid-to-high-end models, so how does it achieve automatic deceleration and acceleration?
The ACC adaptive cruise system is mainly composed of a distance sensor (generally placed at the front position), a vehicle speed sensor and an ACC control unit. The distance sensor is mainly responsible for measuring the distance between the vehicle and the preceding vehicle when it detects the distance from the preceding vehicle. When it is less than the established safety distance (the set safety distance of each brand is different), it will be fed back to the ACC control unit. At this time, the speed of the vehicle will be determined according to the speed sensor. Finally, the brake system and the engine control system will participate. In the deceleration process of the vehicle, on the contrary, when the current vehicle is away from the predetermined safety distance, the ACC control unit will automatically accelerate the vehicle speed to the set speed before the cruise, so that the vehicle always maintains the driving distance with the preceding vehicle.
Technical differences and application levels
Technical differences: the basic principles are exactly the same, but there will be differences in technical terms and operations.
Application level: such as BMW 7 Series, Volkswagen CC / Phaeton, Toyota Reiz / Crown, Infiniti M series and other models have been applied
Some readers may ask, what is the difference between the brands' adaptive cruise systems? Since most of this technology is developed by third-party automotive electronics companies (such as Bosch), the basic principles are exactly the same, but only in technology. There are differences in salutation and operation. Editing here is not introduced one by one.
At present, mid- and high-end brands such as Mercedes-Benz, BMW, Lexus, Infiniti and Audi have already applied this technology. With the increasing demand of users, this technology is also expected to be popularized in low-end models to enhance their competitiveness. I want to see, the consumer doesn't want to put a pair of feet on the driving trip? (æ–‡/å…´ç‰)
Lane departure warning system
Technical features: When the vehicle deviates from the driving lane, it can give a reminder by alarm sound, steering wheel vibration or automatic change of steering
Principle and function introduction
The introduction of new car technology is often more "fool" for the driver to operate, and as the adaptive cruise system mentioned above can open the feet, then the editing technology to introduce you can let Your hands are relaxed while driving, so what is it?
Yes, this active safety technology is the “lane departure warning systemâ€. Simply put, when this function is turned on, if the vehicle deviates from the previous driving route, the vehicle will give an alarm or the steering wheel will start to vibrate to remind The driver's current vehicle deviation condition can effectively avoid the driver's distraction, inattention or driving fatigue, and reduce safety hazards.
The lane departure warning system is mainly composed of a HUD head-up display, a camera, a controller and a sensor. When the lane departure system is turned on, the camera (generally placed on the side of the vehicle body or the rear view mirror position) will collect the identification line of the driving lane at all times, and pass the image. The processing obtains the position parameter of the car in the current lane. When detecting that the car deviates from the lane, the sensor will collect the vehicle data and the operating state of the driver in time, and then the controller sends out an alarm signal, and the whole process is completed in about 0.5 seconds for driving. Provide more reaction time. If the driver turns on the turn signal and normally performs the change of line, the lane departure warning system will not make any prompt.
At present, the lane departure warning systems provided by various manufacturers are based on visual (camera) acquisition of data, but their accuracy in collecting lane markings will decrease when they are in rainy or snowy weather or on low visibility roads. In order to solve this problem, clever technical engineers have developed an infrared sensor acquisition method, which is generally placed on both sides of the front bumper, and collects signals through infrared rays to analyze the road surface, even in the environment of the environment, can recognize the lane. The marking line is convenient for prompting the driver to deviate from the state of the road in any environment.
Technical differences and application levels
Technical differences: In addition to the different names, this technology has essential differences in the ways and means of reminding drivers in each brand model.
Application level: Volkswagen CC, BMW 5 Series, Mercedes-Benz E-Class, Infiniti M-Series and other models are equipped
In the lane departure warning system of different automobile brands, in addition to the different names, there are essential differences between the methods and methods for reminding the driver. For example, the Nissan Infiniti model will light up in the dashboard after deviating from the lane. Lights, and beep in the car to remind the driver, but when encountering a messy environment (such as driving windows, vehicles in the rear for a long time whistling), there will be inaudible prompts, resulting in security risks. In this regard, brand models such as Mercedes-Benz and Toyota have been improved. Their lane departure warning system warns the driver in the form of steering wheel vibration. Compared with the prompt sound method, it is safer and more reliable. In addition, models such as Citroé¾™n also use a seat. The way to remind the chair vibration. There are also a few brand models that use the method of automatically changing the steering of the car. Taking the FAW Volkswagen CC as an example, with the help of electronic assistance, it can automatically correct the steering wheel for small adjustments, so that the vehicle can always drive on the correct track.
From the current automobile consumer market, consumers are not only concerned about the price of models, but also have more comfortable and richer configurations. They are more desirable. The lane departure warning system is one of the advanced technologies in active safety. It has gained popularity in all levels of the model, and may be seen in some low-end models in the future.
to sum up:
The research and development of automotive technology is generally to let car owners enjoy a better car life. The smart driving service described in this article can provide users with more convenient and quick service, while lane departure warning and adaptive cruise system are more concerned. User security.
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