On the one hand, the release of the collision results of China Insurance Research Institute exposes many domestic star models, but on the other hand, it also presents the excellent safety of many models intuitively, providing a powerful reference for consumers. Among them, we can see Toyota's test vehicles, which have excellent collision safety performance, including popular cars such as Ralink and Camry.
Obviously, it is no accident that the list of collision results in Toyota's batch impact is guaranteed. These top crash results are TNGA models, so why can TNGA bring such high safety to vehicles? We can continue to understand.
Authoritative collision mechanism test, a number of TNGA models have achieved good results.
The highlight performance of vehicles under TNGA framework in collision test is not something once or twice. The eighth generation Camry under the TNGA framework has also made outstanding achievements in IIHS. Camry topped the list for three consecutive years. Safe? PICK+ Award, such a high security, not to mention the "full G" crash score of China Insurance Research Institute in China.
If someone says that Camry's price of 200,000 yuan is here, it is definitely not safe. Then we can reduce the price to TNGA's first SUV-C-HR, 6.5438+0.5 million yuan. Not only has it achieved almost excellent results in IIHS, but it has also obtained the highest safety evaluation of "five-star excellent" in European E-NCAP.
Or we can discuss it further. For Ralink, which is more affordable to the people, the American version also won the championship in the collision test of IIHS. Safe? PICK Award, and then in the crash test of China Insurance Research Institute, Lei Ling was the top four in the test, which showed the consistent high security of TNGA architecture.
It can be seen that the models under TNGA architecture have the world's top anti-collision safety performance, which means that passengers will get greater peace of mind when riding the models under TNGA architecture.
How "hard" is the TNGA body brought by the combination of structural materials and manufacturing technology?
Why can TNGA architecture have such excellent security performance? We can roughly sum up two aspects, one is the structural design of body materials, and the other is the high-tech manufacturing technology.
In terms of body materials, all the models under TNGA framework adopt high-rigidity GOA body, and the utilization rate of high-strength steel (above 270 MPa) on the body is 100%. Taking Camry as an example, the proportion of high-strength steel (270-590 MPa) and ultra-high-strength steel (higher than 590 MPa) in the whole vehicle is over 94%, and the body is also made of ultra-high-strength galvanized steel plate (1 180 MPa). This material has the characteristics of higher strength, lighter weight and stronger anti-rust ability, and is the only one in China at present. Camry, like other TNGA models, uses thermoformed steel (1500 MPa) in the main parts of the car body such as A-pillar and B-pillar to build high-strength bones for the car body.
Another example is Lei Ling, where the highest strength of car body steel is as high as 1620 MPa. It is necessary to know that the highest strength steel used in general models is within 1280 MPa, and the professional off-road SUVs in Europe and America only have 1500 MPa ultra-high strength steel.
In order to further strengthen the anti-collision safety performance, the body structure of TNGA has also been optimized, and the opening of the body adopts a ring-frame structure. Similarly, taking Lei Ling as an example, the side wall reinforcement has changed from the original I-shaped structure to the present closed-loop structure, which has improved the strength of the car body from the structure.
(Leiling white body)
Followed by high-tech manufacturing technology. As we all know, the anti-collision safety performance of the car body is not only related to the material, but also related to the structural design of the car body. However, few people know that the anti-collision safety performance of the car body is also closely related to the manufacturing process and quality. As the only "zero defect rate" factory of Toyota overseas, GAC Toyota has always won the hearts of the people with its production quality. In order to ensure the safety and quality of vehicles, GAC Toyota has adopted four advanced manufacturing processes.
The stamping and welding process is 90% self-made.
In order to ensure the quality from the source, GAC Toyota has a high self-made rate of body parts. 90% of the large stamping parts of GAC Toyota's models are completed by themselves, which is about 2 times more than the industry level. There are more than 5,000 welding spots on the body of TNGA. For example, there are 52 15 welding spots on the body of Lei Ling, which is more than most B-class cars, let alone A-class cars. Similarly, 90% of the solder joints are manufactured by GAC Toyota, and the number of internal solder joints is 1.5 times that of other manufacturers.
(Laser on-line measurement: If the solder joint is photographed, the accuracy does not meet the preset, and the machine will automatically give an alarm. )
The electrode adopts "electrode head forming machine"
Due to the inevitable welding spatter in the welding process, the electrode head is deformed, which leads to poor welding of the body solder joint. In order to ensure the qualified rate of 100% solder joints, GAC Toyota grinds the electrode head for welding in the forming machine once every time to ensure that the electrode head is in a brand-new state every time, so that the solder joints punched out every time are standard solder joints.
Laser welding is used in the energy-absorbing collapse area of the car body.
It should be understood that laser welding is an advanced welding technology at present, which can tailor-weld steel plates with different materials and thicknesses. Of course, GAC Toyota also has applications. The welding machines are all made in Japan, which are used to weld the front longitudinal beam and the front floor of the car body. These are areas where energy absorption collapses. Why is it not widely adopted? Because laser welding has the risk of burning through, but the production concept of GAC Toyota still focuses on quality, so for consumers, no matter what welding process is adopted for the car body, as long as the strength of the car body meets the design requirements, there is no problem.
Use high-rigidity structural adhesive with the same process as Lexus.
GAC Toyota also transplanted an advanced technology to Lexus, applying "high-strength structural adhesive" between stamping parts of the car body to improve the connection rigidity of all parts. The total body painting length of each TNGA model exceeds14m, which will not only make the whole body more stable, but also make the vehicle more stable and comfortable when driving.
In order to improve the anti-collision safety performance of vehicles, TNGA body is not only rich in materials, but also scientifically designed in structure, and as a "zero defect rate" factory, GAC Toyota has made great efforts in places that many people can't see.
The safety performance of this TNGA sales model is more concerned.
At present, most models of GAC Toyota have been produced under TNGA framework. If we want to elaborate on the safety level of TNGA, Lei Ling, as the sales manager of TNGA, has the most affordable price, which can best represent the TNGA framework's "equal treatment" for safety. Take China Insurance Research Institute, the most credible collision detection institution in China, as an example. The published evaluation results show that Lei Ling, as a mid-level car, has an overall comprehensive evaluation of G, and has excellent performance.
What is this concept? You can compare the same level first, such as Hyundai Fista and Honda Lingpai. There is only one outstanding one in Fista, and Lingpai has only reached two outstanding ones. Look at the mercedes benz c level of luxury brands, and there are only two outstanding achievements. It can be seen that it is quite difficult to get straight A's, and Lei Ling's hard power really far exceeds that of its peers, even luxury brands.
In the crash test of China Insurance Research Institute, the organization evaluated the vehicle through four dimensions, among which three dimensions-occupant safety index, passenger safety index outside the vehicle and vehicle auxiliary safety index directly reflected the safety performance of the vehicle.
Among them, in the 25% offset crash test related to the safety of passengers in the car, Lei Ling is the score of G in the intrusion evaluation items of the upper and lower parts of the passenger compartment. At the same time, as can be seen from the following test pictures, the A-pillar has not been obviously deformed after the collision. This directly shows that when there is a violent collision, the front of the car can fully absorb energy, and the car body effectively ensures the living space of the passengers and plays a good protective role.
In the side impact test, the distance from the B-pillar in Lei Ling to the center line of the driver's seat is 17.5cm, which is even better than the Volkswagen Magotan (12cm) in mid-to high-end cars. As for the auxiliary safety indicators of vehicles, Lei Ling scored full marks, which also shows that the latest generation TSS intelligent safety system it is equipped with is really effective.
Rich active and passive safety configuration is the basis of leading safety performance.
TNGA framework improves all-round security. Lei Ling, built under the framework of TNGA, adopts the newly developed GOA body with high rigidity. The highest strength of the steel body reaches 1.620 MPa, and the proportion of ultra-high strength steel above 590 MPa is as high as 42%. The main parts of the body frame are made of ultra-high strength hot stamping steel. This provides a solid and reliable structural foundation for the model.
Based on the safety concept of TNGA architecture, Lei Ling also comes standard with 8 airbags, of which only 7 airbags are the most in the same class, and none of them are standard in all departments. Among the eight airbags in Lei Ling, there are knee airbags which are rare in the same class, and passenger seat cushion airbags pioneered by Toyota in the world, which can provide comprehensive protection for the occupants in the car in case of collision.
In addition to the above passive safety protection, all other vehicles in Lei Ling are equipped with the latest generation of TSS intelligent safety system, which includes four functions: pre-collision safety, dynamic radar cruise control, lane tracking assistance and automatic adjustment of high beam, which is enough to improve driving safety in most driving scenarios. These comprehensive active and passive safety configurations have enabled Lei Ling to achieve excellent results in the crash test of China Insurance Research Institute.
Summary:
The higher pursuit of safety in TNGA architecture makes the models under this architecture gain excellent crash safety performance and high trust from consumers. Guangzhou Automobile Toyota TNGA family sold 269,644 vehicles in June 5438+0-July, up 10% year-on-year. Safety has become a strong reason for consumers to choose TNGA models. In the foreseeable future, under the background that people pay more and more attention to safety consumption, the high safety collision performance brought by TNGA and the high quality reputation of GAC Toyota will also bring more growth possibilities for the sales of its models.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.