According to authoritative data released by the Traffic Management Bureau of the Ministry of Public Security, in 2022, there will be nearly 260,000 traffic accidents in the mainland, of which 215,000 will be motor vehicle traffic accidents, and more than 60,000 people will die in traffic accidents, with an average of 166 deaths per day, and 6 lives will be lost every hour...... It can be seen that with the increase in the number of motor vehicles, traffic safety issues are becoming increasingly prominent, so car safety has become the top priority for people. To this end, in addition to the C-NCAP conventional crash test, some car companies have taken the initiative to apply for various tests to more comprehensively inspect the safety quality of vehicles.
Recently, the Lynk & Co 07 EM-P conducted another safety test of "falling from height after underpinning" at the China Automotive Center, a third-party safety testing authority, to simulate a number of critical safety performances including body structure, safety configuration response, and power battery safety of new energy vehicles under a series of accidents such as collision, bottom support, rolling, and falling while driving. According to the statistics of the China Automobile Center, among the number of motor vehicle traffic accidents and fatalities, rollover and crash accidents accounted for 4.6% and 8.5%, and among the traffic accidents that caused casualties, the proportion of rollover accidents reached 19.5%, and the death rate was 10.9%. Therefore, the safety performance of the vehicle in a rollover accident is related to the life safety of every occupant in the vehicle.
-- Test Restore --
During the test, the Lynk & Co 07 EM-P drove at a test speed of 50km/h 1.67 times higher than the industry test standard.
Then, the Lynk & Co 07 EM-P continued to drive, rushing to the 1.8-meter-high unilateral bridge on the right side of the test road, and then immediately fell to a 5-meter-deep road pit, to simulate the scene of the vehicle rushing out of the highway guardrail after an accident, and then falling into the roadside pit, the entire "fly first and then fall" movement stroke of 6.8 meters, about equal to the height of two floors, it is conceivable that this kind of accident is rare even in daily life. It is worth mentioning that in order to ensure the objectivity of the whole test and the rigor of the results, this test was tested twice under the same working conditions on the same day, and in the two tests, the posture of the Lynk & Co 07 EM-P landing was different. For the first time, it landed on its side; The second time, the front of the car swooped to the ground.
Judging from the test results, in the two tests, the Lynk & Co 07 EM-P rubbed against the bottom support device, and until the entire vehicle drop test was completed, the battery pack of the tested vehicle remained in a safe state, without leakage, smoke, fire, and was in good condition, and there were no faults such as high-voltage power failure, and the entire vehicle fuel system was intact and there were no faults such as oil leakage.
After the whole test of the vehicle taking off, falling and even rolling, the top of the Lynk & Co 07 EM-P, the A-pillar, the B-pillar, and the C-pillar have remained intact, and the vehicle has not undergone a large space squeeze, which leaves enough living space for the occupants in the car. Actions such as the pop-out of the hidden door handle are also completed synchronously at this moment, which is convenient for the self-rescue of the people in the car and the rescue of the people outside the car. Then, the E-CALL system in the car also intervened at this time and provided the necessary assistance for the rescue.
——Safety Analysis——
As mentioned earlier, the successful passage of the underpinning test shows the excellent chassis protection performance of the Lynk & Co 07EM-P. This is due to the well-designed underbody structure and the use of high-strength materials – the underbody of the vehicle is equipped with multiple layers of protective plates and stiffeners that effectively disperse and absorb the impact forces generated by the underpinning. At the same time, the use of high-strength steel also ensures that the bottom structure will not easily deform under the impact of large impacts, thus providing reliable protection for the battery pack and other critical components.
Under the extreme working conditions of falling from a height after the bottom support, electrical safety is a crucial aspect. The Lynk & Co 07 EM-P is equipped with a battery management system (BMS), which can monitor the status of the battery in real time, including voltage, current, temperature and other parameters. Once an abnormal condition is detected, the BMS will quickly take measures, such as cutting off the power supply, starting the cooling system, etc., to prevent the battery from experiencing dangerous situations such as thermal runaway.
In addition, the battery pack of the Lynk & Co 07 EM-P adopts a high-strength protective shell, which can effectively resist external shocks and extrusions. In this test, although the vehicle experienced severe impacts such as underpinning, take-off, tumbling and falling, the battery pack remained intact and there were no safety problems such as leakage and short circuit, which fully proved its performance in terms of electrical safety.
Like other models in the Lynk & Co family, the Lynk & Co 07 EM-P also uses a high-strength body structure, and uses hot-stamping steel and high-strength steel in key parts. On the one hand, it can effectively absorb and disperse the collision energy and reduce the indirect impact damage of the occupants, while the firmness of key parts such as the A-pillar, B-pillar and C-pillar ensures the relative integrity of the vehicle structure and provides enough living space for the occupants. In addition, passive safety features such as airbags, safety curtains, and seat belt pretensioners also play a role in the moment of collision, providing effective protection for the occupants.
——Conclusion——
The essence of the vehicle is the means of transportation, and the active and passive safety, including early warning and protection, is an important premise for the value of this vehicle, Lynk & Co 07 EM-P The completion of the underpinning, soaring and falling tests shows the active and passive safety defense capabilities of Lynk & Co models in sudden traffic accidents, and at the same time, it also provides a reference for the safety test and evaluation of the automotive industry.