He gave his life for the car crash test. He is a man.

Recently, the topic that attracts more attention is the collision test of China Insurance Research Institute. SAIC Volkswagen Passat (20 19 Passat 280TSI Business Edition) scored the bottom in the frontal 25% offset collision of C-IASI in China Insurance Research Institute. The crash test screen shows that the A-pillar of the test vehicle is severely bent, and the main driver airbag fails to protect the driver.

Passat, once known for its firmness and safety, fell into the abyss instantly because of this collision test and became the focus of public opinion. It will definitely change the impression of consumers for many years, and then affect sales. As of now, the public has not responded to this. With the deep fermentation of the incident, we are also waiting for the official official explanation. I also believe that through this storm, any car company selling in China will pay attention to it. After all, this is a security issue, and there is no room for slack. There are many introductions about China Insurance Research Institute on the Internet, which also makes people interested in safety crash testing. In addition to the grading standards, today we will talk about another element, that is, dummies.

1. The birth of the dummy

The original dummy was used by the US military to test the ejection of rocket seats and simulate the pilot's injury, and it was also used in the aerospace field. 1949, Sierra Company of the United States developed the world's first dummy-Sierra? Sam. Naturally, the application of dummies in automobiles was also initiated by two American automobile companies, General Motors and Ford.

To say the most famous dummy in the world, it is the hybrid developed by the first safety system technology company in the United States. This is not a mixture of oil and electricity. Hybrid dummies have been developed for several generations and are the most widely used dummies in the world. Many car companies use it, which can be said to be a "red man".

2. How to divide the dummy?

There are three kinds of dummies according to their uses: frontal impact dummies, side impact dummies and rear impact dummies. From 6-month-old babies to 95th percentile adult dummies, there are also men, women, babies, children and even pregnant women. Take an adult dummy as an example: 5% of the dummy stands for short stature, with a height of 148 cm and a weight of 56 kg. 50% of the mannequins represent medium height 177 cm and weigh 86 kg. 95% of the mannequins represent the big figure with height 188 cm and weight 108 kg.

3. What material is the dummy made of?

Most of them are metal and plastic, the chest is steel, the shoulder blades are aluminum and the pelvis is plastic. Because we want to simulate the skin of real people, the skin is rubber and plastic, which is detachable and for reuse. The dummy consists of hundreds of parts and hundreds of sensors.

4. What is the circular sign on the dummy's head?

There are yellow and black circular marks on both sides of the dummy skull and the collision car, which are the marking points of photogrammetry and are used to help the experimental camera locate accurately during photogrammetry. In the collision test, there are usually more than a dozen high-speed cameras, which will focus on these signs for shooting, tracking and measuring, and finally calculate the collision result through image processing and matching.

5. What other dummies are there?

In addition to the hybrid mentioned just now, Toyota also has its own dummy, called THUMS, which is a virtual dummy that can simulate human injuries in a collision accident on a computer. Since 1997, Toyota has developed several generations of this virtual dummy, which can not only be more accurate, but also simulate the posture changes of people, including the pre-collision warning state.

Honda invented the world's first pedestrian dummy, named POLAR, which can measure the injury degree of pedestrians in traffic accidents instead of real people. Polar regions? III also simulates the similarity between waist and feet and human body for vehicles with high body, such as SUV and MPV, and improves the measurement accuracy of chest injury value, which is used to test pedestrian protection system.

6. How much is the dummy? Can you repair it?

Hundreds of thousands, millions. The difference, of course, is that you get what you pay for. Because the parts can be replaced, the dummy can basically be repaired and reused.

7. Real-life test?

It sounds too exaggerated, but there is such a person. His name is Hite. He used to be a policeman in San Diego. He is the director of the Institute of Collision Safety. He is an independent air crash investigation consultant. By the time he was in his forties, he had completed 990 crash tests and would even do a real crash test at the Las Vegas circuit. Independent collision accident investigators, on-site evaluators of insurance companies and law enforcement officers will attend.

For this "fearless" spirit, I can only say: buddy? Good luck. If you don't obey the wall, I will obey you!

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.