With the rapid development of the automobile industry, the need to ensure the safety of passengers has become increasingly prominent, among which frontal collision and rear-end collision accidents have become the most important types of accidents that threaten road traffic safety, accounting for 72% of accidents. Based on this, Geely Automobile decided to test the safety of the vehicle with rigorous forward and tail collision tests before the launch of the LEVC L380, the world's first four-row pure electric high-end MPV, to effectively protect the travel safety of users.
On January 9, the L380, known as the "Land Airbus", completed the public forward collision test, and all 31 spot checks passed the all-round verification of passive safety and electrical safety strength, becoming the first pure electric MPV model in the industry to complete the public forward collision test.
On April 9, L380's security continued to deepen. At Geely Automobile's Safety Technology Laboratory, L380 successfully completed the challenge of tail collision internal testing, and passed all 20 detection points, demonstrating its strong strength in tail safety in an all-round way. So far, L380 has proved its industry-leading vehicle safety hard core strength with the results of "taking into account both front and back", and has once again refreshed people's perception of the safety performance of high-end pure electric MPVs with "Airbus-level" safety standards.
For the first time in the industry, four rows of seats with dummy rear-end collision
Among all kinds of traffic accidents, rear-end collisions are extremely common. Especially on highways, the proportion of rear-end collisions reached 77.2%. Therefore, as the world's first four-row pure electric high-end MPV, the L380's tail impact test is of great significance for both user safety and the pure electric MPV industry.
The tail crash test takes GB 20072 as the crash test condition, the speed difference between the front and rear vehicles is 50km/h, covering almost all the rear-end collision scenes; the bullet car weighs 1100kg, and it is a rigid vehicle that cannot collapse, and all the energy after the collision is absorbed by the rear-end vehicle; two dummies are added to the fourth row, and additional electrical safety, cockpit structure safety and other inspection contents are added. The high standard of crash design means that the L380 with its four-row seating layout will be subjected to extreme shock loads, which will undoubtedly pose a more serious challenge to its structural stability and energy absorption capacity.
Judging from the results of the internal test, the L380 crash performed well and passed all 20 real-time inspection items. During the test, the tail of L380 quickly collapsed and deformed, the energy was fully absorbed, the entire D-pillar did not bend or deform obviously, the collapse and energy absorption process was completed in the trunk part, there was no obvious deformation in the passenger compartment, and the dummy maintained a good posture and did not contact with the objects in the car. This means that in the event of a real rear-end collision, even passengers seated in the fourth row are adequately protected, greatly reducing the likelihood of injury.
During the tail collision test, the L380's double flash is triggered normally, the door lock is unlocked normally, the door handle is automatically popped up, the seat belt is tightened instantly, and the RCW function (rear collision warning function) and E-call function are triggered normally, which further enhances the safety of the vehicle and provides users with more superior escape conditions. When it comes to electrical safety, which is crucial for electric vehicles, the L380 also excels. After the collision, the L380 will be powered off normally with high voltage, which fully meets the safety requirements of pure electric vehicles and improves the safety of the whole vehicle at a deeper level.
Three lines of defense cast L380 safety iron shield power
As a pure electric MPV with four rows of seats, the L380 has more stringent requirements for energy absorption efficiency and accuracy in structural collisions. With the active and passive safety system, L380 has created three hard-core protection lines, casting a safety iron shield, allowing users to drive without worries, and successfully achieve the "Airbus-level safety" standard.
The L380 has a hardcore support that can withstand the huge impact energy. Its rear anti-collision beam made of high-strength steel has an effective coverage width of 1450mm, accounting for 72.5% of the vehicle's width ratio, and the "large surface force" effectively resists collision and intrusion at various angles and improves the protection in an all-round way2. The force transmission structure, gradient support and absorption and resolution of most of the collision energy in the rear-end collision process, 1500MPa hot-formed steel longitudinal beam, to ensure zero intrusion in the core area of electrical safety; In addition, the height of the four rows of heads of the L380 is 1582mm, and the heads of the four rows of occupants and other important parts are far away from the collision deformation zone.
On top of the "hard core", L380 also has a "smart mind" - intelligent guardian. L380 intelligently warns the rear car brake and keeps the car braking with RCW function to avoid secondary risks and reduce collision losses;In terms of emergency call, L380 will automatically trigger the E-call function when an accidental collision occurs, call for rescue in time and seize the golden time for rescue;In addition, L380 involves safety-related important high and low voltage components placed between the front and rear axles, which can minimize the risk of damage during forward and tail collisions. In the event of a collision, the L380 cuts off the high voltage in "milliseconds", while the 40Ah low-voltage lithium iron phosphate battery continues to maintain power supply to ensure that the vehicle is unlocked smoothly, so that the "electricity" is both and there.
In terms of restraint system, the L380 seat rail adopts a high-strength seat slide adjustment design, and the locking failure strength of the slide rail reaches 3 to 6.5 times of the design standard to ensure the stability and safety of the seat in extreme situations. Even in the event of a low-probability collision during adjustment, the L380's seat remains strongly locked. Even in the case of extreme luggage in four rows of seats, the L380 can effectively prevent luggage from damaging the seat frame, so as to maximize the safety of drivers and passengers.
No security, no luxury The confidence behind "Airbus-grade safety".
Safety is always the number one criterion for building a car. At present, Geely has invested more than 3.6 billion yuan in safety, and has 2,494 patents related to safety, ranking first in the industry.
Geely has also incorporated the life safety domain, health safety domain, property security domain and privacy security domain into the scope of security technology development, and is committed to creating global security with zero life casualties, zero health hazards, zero property loss and zero privacy leakage.
The world's first space-oriented pure electric SOA architecture not only maximizes the driving and riding space, but also realizes multiple energy absorption and precise force unloading transmission through multi-dimensional safety design, which can support L380 to meet the design requirements of Chinese and European five-star standards at a higher verification scale.
As the world's first four-row pure electric high-end MPV, the L380 has successfully passed the rigorous front and tail touch tests, achieving both safety and space, showing the high safety of "Airbus-grade" pure electric MPV, and once again confirming the industry benchmark - "no safety, no luxury"!