In recent times, the industry has been controversial about whether "the adoption rate of automotive electronic safety products in automobiles is as good as possible". Some insiders believe that as long as economic conditions permit, the electronic technology used in automobiles should be as good as possible. There are also some experts who disagree with this view and believe that automotive electronic security technology should be based on practicality and should not be developed blindly. The reporter interviewed two experts who made different opinions on this topic.
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Li Shuzhen, General Manager of CCID Consulting Semiconductor Industry Research Center:
How many car electronic security systems are equipped?
Li Shuzhen, general manager of CCID Consulting's Semiconductor Industry Research Center, said that in addition to the shape, price and power of the car, which are the main factors for consumers to consider, the safety of the car is increasingly valued by consumers, and some popular ones are used to improve Automotive safety automotive electronics products are favored by consumers. From a buzzword, "Is this car ESP (Electronic Stability System)?", many people think of vehicles with ESP, DSC (Dynamic Stability Control System) and other electronic safety systems as high technical content and safety factor. High product.
Li Shuzhen believes that people's pursuit of security is justified. In addition to the means of transportation, the car has many dangerous factors due to its fast speed, complicated road conditions and different driver status. Many dangerous factors may be fatal and even threaten the safety of others.
Currently, automotive safety systems can be broadly classified into active safety systems and passive safety systems.
Active safety systems primarily prevent the accident from happening by improving the stability of the vehicle, or alert the driver before the danger. Chassis control systems such as ABS (Antilock Brake System), ESP (Electronic Stability System), TCS (Traction Control), EBD (Electronic Brake Force Distribution) are active safety systems. In fact, these electronic products collect various states and driving information of the car through sensors, and control the car through a control module composed of chips to improve the safety and stability of the car and avoid some mistakes that the driver cannot control. In the early days of the automobile industry, car safety relied heavily on driving technology, and the active safety system can intervene in the hidden dangers before the danger occurs, minimizing the danger.
The passive safety system is a measure to reduce accident damage. It plays a role in improving the safety factor after the accident, protecting the driver and passenger in the event of danger, and the person affected by the accident outside the vehicle. Passive safety systems mainly include seat belts, airbags, and the like. From the development of domestically produced vehicles, airbags and anti-lock braking systems have basically become the standard configuration of cars. How to ensure that the safety system is more accurate and reliable has become an urgent concern for consumers, and how to avoid accidents is obviously more active. The significance of the active security system has increasingly attracted attention and become the new favorite of the market.
Li Shuzheng said that in the process of China's automobile technology development, people's pursuit of safety has never stopped. The provision of various safety electronic systems has become the direction of future development of automobiles. Among them, intelligent systems can be said to be the future development trend. one. For example, an intelligent security system can detect whether the driver is fatigued by detecting information such as the sitting posture, the state of the eyes, and the number of blinks of the driver, and then promptly gives the driver a safety prompt according to the judgment result.
The introduction of various types of security systems is mainly due to the limited ability of people to respond, and there is a certain probability of error in the process of reaction. Electronic products rely on the control unit composed of chips to detect data and data that many people cannot detect. And quickly based on the test data, the regulation of the car, these are not human capabilities. Therefore, it can be said that the automotive electronic safety system can improve the safety of the car without human intervention.
Since each safety system has its role, it can improve the safety of the car under certain circumstances. Therefore, in theory, the more electronic security systems loaded on the car, the better. Although driving safety still depends to a large extent on the driver, the automotive electronic safety system can improve the safety and stability of the car under certain circumstances. In addition, accident damage can be reduced to some extent. As a result, security systems are gaining more and more consumer attention.
Li Shuzheng said that as a product with high requirements for safety and stability, the introduction of each electronic product requires a large number of tests to prevent the instability of the car. Therefore, the electronic safety systems currently assembled are Have their own role. This can be seen from the upgrade of some foreign automotive electronic safety systems to the standard configuration of automobiles. Since the 1980s, airbags have been adopted as standard equipment for mid-range vehicles in some countries in Europe and the United States. Since 2002, most countries in the world have adopted seat belts together with airbags as standard equipment.
For consumers, although they want to buy as many electronic security systems as possible, they are accompanied by an increase in the cost of the car. Why do many car dealers use electronic security systems as a selling point for cars? First of all, good safety is a prominent feature of the car. Secondly, dealers should also explain the reasons for car pricing from the side, because the more security systems are assembled, the higher the price.
In the past decade, the size of the Chinese auto market has expanded rapidly. With the upgrading of automotive products, more and more intelligent security systems are equipped. Some electronic safety products are not used by drivers when driving a car, and their effects appear when danger occurs. Since many accidents and accidents directly threaten people's lives, some electronic products with low usage rates are often more necessary.
Li Shuzhen believes that with the development of automotive technology, it can be said that there are too many electronic security systems on the car. For example, the National Highway Safety Administration issued a regulation in April 2005 requiring all new passenger cars and light vehicles sold in the United States to be equipped with tire pressure monitoring systems (TPMS) by September 2007, and Chinese vehicles such as ABS. There are similar regulations in the provision of electronic products.
Li Shuzheng said that when consumers buy a car, they will choose car products according to their own preferences and economic strength. Safety is a basic requirement for consumers to choose a car and should be satisfactorily met. Low prices should not be synonymous with insecurity. All grades of automotive products should be within a certain cost range, and increase automotive electronic safety products as much as possible to further improve the safety of automobiles.
Opposition
Wang Hongyan, professor and doctoral supervisor of Tongji University Automobile College:
Car electronic safety system is enough
Wang Hongyan, a professor and doctoral supervisor at the Automotive College of Tongji University, said that since the birth of the car, people have paid close attention to the safety of the car. At first, people thought that the harder the car body structure, the better. At this time, the design concept of the car is to make the car stronger and better. After the 1980s, this design concept was broken. It has been found that in many traffic accidents, the sturdy car is intact and the occupants are seriously injured or even killed.
Since the 1990s, the design concept based on automobile safety has gradually shifted to people-oriented, that is, from protecting cars to protecting people. This design concept is called rigid and soft. “Gang†means that it is necessary to maintain sufficient rigidity of the vehicle body to withstand the dynamic load and static load of the whole vehicle. “Soft†is to ensure the safety of the occupant as much as possible while ensuring sufficient occupant living space. In fact, it is to allow certain deformation and damage of the car body structure, reduce the impact energy of the occupants, so as to reduce the damage to the occupants as much as possible.
With the development of automobiles, more and more security devices are being used. Especially in recent years, automotive electronic safety systems have gradually armed the entire car. Some consulting companies have conducted some surveys on car buyers, and the results show that car safety is at the core of the user's requirements for the car. Most consumers believe that car safety is more important than car power, comfort and economy. Focus on car safety, not only for drivers and passengers, but also for other people on the road.
Wang Hongyan disagreed with the view that "the more the car electronic security system is, the better." He said that the cause of road traffic safety accidents is not just that car safety technology is not in place. In summary, there are four reasons.
One is the human factor, which means that man-made may cause an accident. This aspect includes skill training, such as the proficiency and unfamiliarity of driving skills, whether it can drive correctly; awareness training is whether people's safety awareness is strong, and whether traffic regulations are understood and consciously observed.
The second is the factor of the car. The structure of the car safety design is not reasonable, the safety performance is not good, and the safety protection measures are effective.
The third is the road factor, whether the safety facilities are sound, whether the road planning is reasonable, whether the road safety signs are there, and whether the road conditions are conducive to driving.
The fourth is the environmental factors, including the surrounding social environment and natural environmental factors are not affecting driving.
Among the four factors, as long as one factor is not coordinated, it is prone to accidents. From this we can see that the safety of the car itself is only a quarter of a certain degree.
At present, car dealers and car manufacturers use the electronic safety system installed in the car as a selling point, which is misleading to some immature automobile consumers in China. They actually equate car safety with traffic safety, over-emphasizing the safety of cars, and ignoring the other three factors, which will spread an inappropriate safety concept for car buyers. In China, the time for cars to enter the family is relatively late. Relatively speaking, the owner’s awareness of driving safety is not strong enough. Those who are afraid of traffic police fines to obey the traffic rules abound. In addition, it is also affected by the dealer's “flickerâ€, which has formed an excessive dependence on the automotive electronic security system.
Can the car electronic safety system really magically protect the safety of motorists at all times? Wang Hongyan said that of course not. For example, the ESP brake anti-slip system is actually only braking when turning, especially in snow or wetlands. And consumers should realize that these electronic security systems can only reduce the damage caused by accidents, and are not as fascinating as the manufacturers advertise.
According to the statistics of the Ministry of Public Security, 90% of the direct and indirect causes of accidents caused by road traffic accidents last year were human factors. The main cause of traffic accidents on our roads is not the technical reasons such as the passive safety of the vehicles, but mainly caused by some non-technical factors, such as the driver’s wrong driving behavior, pedestrians and other traffic participants’ own self-consciousness. factor. So how to do driving safety? Wang Hongyan believes that we can start from the following three aspects. First of all, you must follow the traffic rules and drive correctly. Secondly, use the safety equipment that comes standard in the car, for example, remember to wear a seat belt when driving. Regarding the effectiveness of seat belts, a survey conducted by the Federal Highway Administration of Germany from 1990 to 2005 showed that seat belts can reduce accident damage by an average of 60%.
Wang Hongyan said that the opposition to "the more the car electronic security system is better" does not negate its role in the car, but hopes that the car consumers will correctly view this problem.
Wang Hongyan believes that from a scientific point of view, not all electronic security systems in the car must be equipped. The safety performance of German cars is relatively good, which is the result of the design of the country's road conditions and traffic road accidents. At present, the Automotive College of Tongji University is doing the "Research on Road Traffic Safety Accidents in China". A preliminary study on road traffic safety accidents in Jiading District of Shanghai shows that bicycle accidents in this area account for 3% to 5% of the total. That is because China The road conditions are more complicated, and the high-speed road network is still not developed. Most of the roads are mixed roads of motor vehicles and non-motor vehicles. There are many plane traffic and many intersections. From the characteristics and form of traffic accidents, it is different from the situation in Germany. We must take different security measures according to the characteristics of the accidents in our country, instead of just propagating "the more electronic safety systems for cars, the better."
What electronic security systems are necessary for Chinese cars? Wang Hongyan believes that from the passive safety level, it is necessary to use seat belts and airbags. In addition to the airbags that are facing in frontal collisions, it is also necessary to increase the airbags that protect the waist and abdomen when a vehicle collides on the side. In addition, electronic safety devices that protect the feet and lower legs should be added. From the active safety level, ABS and the car's automatic anti-roll electronic safety system are needed to shorten the braking distance and prevent the brake from running out of control.
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