The Tesla Model S is the only model in 2014 that has received the five-star safety certification from the European New Car Safety Association Euro NCAP and the US Highway Safety Administration (NHTSA). In fact, the United States and Europe are the two most mature automotive markets in the world. The standard for car safety is the highest in the industry. Therefore, cars that can simultaneously receive the “double five-star†safety awards in Europe and the United States are very rare, while Tesla can It has to be admired in many evaluation projects, including frontal collisions, side collisions, tumbling tests, child protection tests, pedestrian protection tests, and whipping tests. After all, as a start-up car company, Tesla can easily defeat the traditional fuel car that has been developed for hundreds of years in safety. It is “unexpected†by many people, but Tesla responds with actual actions. These doubts prove that Tesla's excellent safety performance is "reasonable" and innate.
As we all know, as the leader and pioneer of the global smart luxury electric vehicle industry, Tesla is born with many flashing labels, "Apple in the automotive industry", "the smartest car", "100 seconds acceleration", etc. . In fact, Tesla's least known advantage is "security." Tesla, born in Silicon Valley, is born with a unique safety gene – a more powerful safety gene than a traditional car! This kind of gene is derived from the technological revolution in which human beings continue to advance and innovate. Just as today's smartphones have replaced non-smart phones, thanks to the rapid development of electronic integration technology and display technology, smartphones can be made thinner and have better performance experience.
According to statistics, in the United States, an average of every 100 million miles traveled, one person will die in a traffic accident. Tesla's Model S has sold more than 60,000 vehicles worldwide since its launch in 2012. Assuming an average of 12,000 miles per person per year, 60,000 Tesla drivers have accumulated at least 700 million miles in three years. But except for a driver who accidentally crashed into the sea in California in early 2015, Tesla’s driver has so far had no other traffic fatalities, and such records remain well-founded.
"Safety Gene" to create the safest product - body safety
It’s inevitable that the car will be lost, and safety is a crucial prerequisite for both the car and the people. When it comes to security, the simplest and most intuitive understanding of most people is: anti-collision. But "anti-collision" is not a simple and rude concept. Heavy weight and large size are not the same as anti-collision. Instead, precision design and reasonable energy absorption are needed to avoid personal injury. Different from the steel body commonly used in traditional cars, the body and chassis of the Tesla Model S are mainly made of aluminum alloy. The body frame is reinforced with high-strength boron steel, which absorbs energy effectively when impacted, but the cockpit is not easily deformed. . In the vehicle manufacturing process, the professional combination of extrusions, stampings and castings achieves the required rigidity and strength, making the Model S body with excellent passenger protection and vehicle handling. The aluminum reinforcements used in the Tesla Model S are derived from aerospace technology, which is lighter in weight and more expensive to manufacture. The Apollo moon landing spacecraft uses this aluminum. Compared to conventional steels, aluminum materials have better metal ductility and therefore absorb impact more effectively. From the results of the actual high-speed driving strong collision, the Model S driver suffered little damage, which also proved the advantages of the Model S body material and structure.
Because the most heavy part of the car - the battery pack is located directly below the chassis, this brings two benefits to the safety of the car: First, the low center of gravity brought by the heavy battery pack makes Tesla almost impossible The rollover; the second Tesla battery pack itself is designed to be very strong, which in turn adds a layer of protection to the vehicle's passenger compartment. In addition, thanks to the advantages of pure electric vehicle technology, Tesla Model S has a “front trunk†design, which not only frees up a huge storage space for the owner, but also acts as a collision before the collision. The role of the buffer. The space vacated by the “headbox†allows the Tesla Model S to be placed on the bottom of the body structure with a perfectly flat double octagonal guide rail, which maximizes the impact energy during a frontal collision and effectively protects the drive. The safety of the cabin personnel. In terms of pedestrian protection, when the speed of the vehicle is between 19-53km/h, if the sensor in the front bumper of the Model S detects a collision with the pedestrian, the rear of the trunk lid will automatically rise about 80mm. A space is formed between the relatively soft aluminum trunk lid and the harder components below it, minimizing head injury to pedestrians and cyclists in the event of a frontal impact. In addition to the hardware "anti-collision", Tesla will also provide a housekeeper-style automatic help function. When the Tesla Model S crashes, the car will automatically send back the relevant parameters, and the customer service staff will be necessary. In this case, contact the owner in time to help with the follow-up. In addition, the background staff can also automatically know whether the vehicle needs to be replaced with the relevant parts by the car number, and assist the owner to upgrade or replace the parts.
Tesla is not satisfied with the high safety factor brought by passive safety, and active “safe haven†is the pursuit of higher security. Tesla's automatic driving function combined with front camera, radar, 360-degree ultrasonic sensor and real-time traffic update, can detect obstacles within about 5 meters around the body, and can automatically drive the model in open roads and frequent parking starts. S. The standard safety features always monitor stop signs, vehicles and pedestrians, and unconscious lanes. In other words, Tesla avoids risks for the owner at any time and anywhere to prevent accidents. It is reported that the autopilot related function will be gradually activated with the software update of Tesla air upgrade. For example, the Tesla 6.2 version of the car system upgrade, the new active cruise control, front collision warning system and camera-based near-light automatic adjustment function.
It can be said that Tesla has devoted all efforts to creating a "light intelligent tank", which not only has a high passive safety factor, but also requires intelligent means to avoid possible dangers in active safety.
Safe "core" for a safe heart - battery safety
Tesla has subverted the "fuel tradition" of the automotive industry for a century, and turned to electricity as the power output. The problem of flammable gasoline fuel no longer exists for Tesla.
The Tesla Model S is equipped with thousands of specially-designed advanced lithium-ion batteries for vehicles with very high energy density and excellent safety. This kind of battery cycle is quite amazing. The capacity and DC internal resistance can maintain a relatively stable level after thousands of charge and discharge. The charging rate and temperature have little effect on the battery. These are unmatched by ordinary lithium-ion batteries. of.
In fact, Tesla's true top-secret technology includes an efficient battery control management system that draws on the model of Internet program management to control hundreds of servers and introduces a layered management approach to control these "active cylinders". . The small batteries are connected in parallel to form a battery block, the battery blocks are connected in series to form a battery module, and the 16 battery modules are combined to form a battery pack. The advantage of the battery management system developed by Tesla is that it can accurately estimate the nuclear power status of the battery cells, ensure that the SOC is maintained within a reasonable range, and prevent damage to the battery due to overcharge or overdischarge. In addition, each battery cell in the battery pack is connected to a thermistor and a series of optical fibers, while the thermistor is connected to the battery monitor to connect the optical fiber to the photosensitive sensor. When a battery cell temperature exceeds a safety standard, the thermistor will generate an electrical signal to the battery monitor to activate the battery condensing system to ensure battery safety. The Tesla battery module uses water-cooled heat to keep the battery at a constant temperature range to avoid overheating.
In addition, the 16 battery modules are separated by a firewall. When the battery is in a fire, it will be blocked by a built-in firewall in the battery pack structure in a small part of the front of the car body. When the battery fires, it will be blocked by the built-in firewall in the battery pack structure. In a small part of the space, the fire can not enter the occupant space. At the same time, in the event of a collision, the battery structure protects the cell from shock and automatically disconnects the power supply.
It is worth mentioning that Tesla provides the Model S with an eight-year unlimited mileage warranty for the battery and power unit, ensuring that the owner can use it with confidence. The layout and control management system of the battery pack is one of Tesla's core strengths. With these technologies, Tesla has not had any battery safety problems since its inception.
"Soft Security" also has hard power - information security
Intelligentization is an inevitable trend of the global automotive industry. With its unique mechatronics technology, Tesla has achieved the first real car networking service in the industry, and has undoubtedly occupied the commanding heights of the automotive market. Unlike traditional cars, except for the "double flash" lights and the storage compartment buttons in the co-pilot position, all the other buttons in the Tesla Model S electric car are combined in a 17-inch central control touch screen. The most important thing is that behind the touch screen is a system that can be automatically updated at any time. This is Tesla's humanized “air upgrade†service. Tesla took the lead in leading the wave of Internet of Vehicles and elevating the interaction between cars and people to a new level of history. The technology at the front end always has to withstand the challenges and tests of the public. Many people have begun to question whether Tesla has information security vulnerabilities. Losing security, all intelligence is just a piece of paper, and Tesla's intelligence is based on security.
In fact, the current hacking of the Model S by the hacker community is largely a physical intervention in the vehicle. Tesla's security is refined to every part of the system, whether it is the vehicle itself, the server of Tesla, or the mobile app on each owner's phone. It has undergone repeated security testing and verification.
In the absence of a key, the Tesla mobile app can directly control the car, but each time you need to enter the account information, each unlock has a process of finding a key. Tesla's car has a lot of security modules and controllers that interact with the keys. This is not a simple design. Sometimes there are keys in time, and it doesn't have to be able to open. It keeps detecting every few seconds. There is a cycle, ratio, and can only be unlocked and activated under the conditions of safety and matching.
In fact, there is no absolute security in the world. If there is information security problem in the Tesla car network, it is better to say that the entire Internet is vulnerable. You should not give up online shopping for computers that are vulnerable to hacking. You will not give up mobile payment functions because mobile phones are easily stolen. Therefore, electric vehicles also have these problems. Traditional fuel vehicles will be stolen. The glass of the electric car is also not bulletproof glass, but it will also be broken, but these do not mean that Tesla is worse than the traditional car in terms of safety. However, Tesla strives to protect the information security of car owners by all means. It is known that the responsible female hacker KrisTIn Panet, known as the "hacker princess", is responsible for maintaining Tesla's products and product safety. This shows Tesla's determination to "black rule" and fight against all information security risks.
Accelerate like a sports car, safe like a tank. It is Tesla's most proud thing to escort the owner. The ever-increasing safety design has never stopped. The honor of "Double Five Stars" is not empty talk, and behind it is Tesla's sincere efforts.
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