Recently, ORA teamed up with China Automobile Center to conduct four super-national battery safety tests on the “Worry-Free Battery” carried by ORA Lightning Cat, including 20mm steel needle piercing the battery cell, burning the whole package for 140 seconds, and heating the whole package. Out of control, the whole package fell from a height of 6 meters, for these challenges, the “Worry-free Battery” all passed smoothly! There is no doubt that the “worry-free battery” created by ORA with “user safety first” as the starting point can be described as a solid shield for users to travel safely.
In real user car scenarios, car safety is a system system. The active and passive safety of the vehicle, battery safety, restraint system safety, etc., play a role in the accident scene to protect the life safety of the occupants. A single battery safety technology is important, but car safety needs to return to the whole. Therefore, ORA will not only promote new industry standards in the field of battery safety, but also pass a series of vehicle-level safety tests to prove the vehicle safety performance of ORA Lightning Cat with strength.
The four super-national battery tests are just the beginning, what will Euler do?
On October 20, 2022, ORA Lightning Cat participated in the first domestic high-speed spiral rolling and falling challenge for electric vehicles held by TOP Safety in the venue authorized by the China Automotive Technology and Research Center.
This is a new extreme challenge created from scratch, and it is also the first test in the industry under corresponding conditions. In order to be closer to the road environment in the daily use scene, this challenge simulates the scene where the vehicle runs out of control on the expressway or the elevated highway in the city, rushes out of the guardrail, falls from the elevated road and hits the ground, and the huge impact causes the whole vehicle to roll over. The body structure, electrical safety performance, and driver and passenger injuries are fully tested. Euler Lightning Cat performed well in the test and successfully passed this challenge.
Why does Euler, who is “people-oriented”, insist on extreme working conditions testing?
In the process of car driving, various accidental collision accidents may occur, among which the casualty rate caused by the car rollover accident is higher. It is understood that the casualties caused by rollover accidents account for 20%-30% of the total number of casualties in traffic accidents. In North America, both NHTSA and IIHS, two authoritative institutions, have added the evaluation of vehicle rollover accidents to the test project. The probability of rolling over is used to evaluate the probability of the vehicle rolling over; IIHS is based on the ratio of the strength of the roof to the weight of the vehicle to evaluate the grade. However, this test does not test the model in the real rollover accident state, and there are certain limitations.
During an actual rollover accident, the car is hit on the sides, top and bottom. These two standards in North America are based on fuel vehicles. Although new energy vehicles are also applicable, they face greater challenges. Since the battery of new energy vehicles is on the chassis, the center of gravity is concentrated on the lower half, and the top of the vehicle bears during the rollover process. Compared with fuel vehicles, the pressure is higher, and the A/B/C pillars and side beams are more likely to be broken, and the roof of the vehicle is at risk of being crushed, which will seriously endanger the safety of the occupants.
At the same time, the battery pack may also be damaged by extrusion, deformation, puncture and other aspects. If the protection of the battery pack is lacking, it is very likely to damage the battery, cause thermal runaway, and cause the car to spontaneously ignite, resulting in irreversible consequences.
The collision and rollover safety of new energy vehicles is a very important issue. Therefore, ORA, guided by “user safety first”, has always been committed to solving user safety pain points in the new energy era. Through the strict testing of extreme working conditions, the original intention of people-oriented car manufacturing and the leading product safety performance are verified.
The first domestic electric vehicle high-speed spiral rolling and falling challenge
Why does Euler Lightning Cat dare to face the ultimate challenge, and what is the confidence?
At the challenge site, Euler Lightning Cat turned off all intelligent driving assistance functions, and placed it at a position 150 meters away from the unilateral bridge. The driving robot rushed to the spiral unilateral bridge at a speed of 60 kilometers per hour, and rolled 540 degrees. It fell into a rammed-earth hardened pit with a length of 40 meters, a width of 10 meters and a depth of 1.8 meters. From the vehicle rushing out of the spiral unilateral bridge to falling into the pit, from the highest point to the bottom of the pit, the maximum drop exceeds 6 meters. After the fall, the huge kinetic energy drives the vehicle to continue to roll forward for 5 laps.
At the end of the test, after the lightning cat hit the ground violently and rolled over, the worry-free battery quickly powered off at high voltage. Not only did there not occur electrolyte leakage, spontaneous combustion, vehicle leakage, etc., but the electrical safety evaluation project passed smoothly. In addition, the body structure of the whole vehicle remains intact, the A/B/C pillars have withstood the huge impact without collapse and deformation, the passenger compartment is well maintained, and the passenger compartment can provide sufficient living space for passengers. Except for the removal of the airbag in the main driving position in order to install the driving robot, the air curtains of the whole vehicle are all opened normally, which provides effective protection for the drivers and passengers in the vehicle. The pre-tightening function was triggered safely, the dummy was firmly bound to the seat, and the double flash and E-CALL emergency rescue functions were normally activated. The vehicle passive safety evaluation project also passed smoothly.
It is worth mentioning that after passing this extreme challenge, the Ora Lightning Cat will stand for 24 hours and dismantle the test vehicle in depth. Industry experts are invited to reveal the hard core safety strength of the Ora Lightning Cat. The video of the solution will be released online on October 24, so stay tuned.
Excellent results are inseparable from innovative design and the efforts of engineers. This is all thanks to the innovative cage body design adopted by the Lightning Cat’s vehicle, and a “worry-free battery” with “safety first” as the underlying logic.
The ORA Lightning Cat adopts a cage-type body design. Through the comprehensive optimization of the crash area and the high-strength cockpit area, the multiple force transmission paths of the front, side, rear and top are integrated, and the frontal collision force is transmitted through the longitudinal direction. The beam and the upper side beam (shotgun) are transmitted to the A-pillar, the door sill, and the middle passage; the A/B/C-pillar, the seat beam, and the roof beam realize the side ring structure, which can play a comprehensive safety protection. During this rollover test, the A, B, and C pillars can better participate in the bearing capacity and play a supporting role. The rigidity of the car body structure can also quickly and effectively transmit the force to the non-collision side, reducing the accumulation of energy on the collision side, thereby effectively reducing the deformation of the passenger compartment and ensuring the safety of the occupants in the car.
On this basis, the high-strength materials of the Euler Lightning Cat vehicle account for 77.6%, of which high-strength steel accounts for 30.6%, ultra-high-strength steel accounts for 29.4%, and hot-formed steel accounts for 17.6%. Structural application has been simulated and optimized, which are respectively applied to key areas such as A/B columns, upper and lower side beams, and roofs. Among them, the A/B pillars are made of advanced 2000MPa hot-formed steel, the roof beams are made of 1500Mpa hot-formed steel, and fiber-reinforced composite materials are added inside the B-pillars to ensure strength and excellent bending performance. All of the above designs are designed to ensure the rigidity of the body and provide sufficient living space for passengers in the vehicle after a collision, effectively protecting the vehicle structure and the personal safety of drivers and passengers.
Because the battery occupies the longitudinal space of the chassis of the new energy car, in order to ensure the passenger space, the panoramic roof scheme is basically adopted, and the top of the tram is the most vulnerable in a rollover accident. The high-strength beams added to the Euler Lightning Cat canopy play a very large protective role. In a rollover accident, if there is no beam to withstand the impact, once a rollover accident occurs, the entire roof has a great probability of collapse, seriously threatening the safety of the occupants. Therefore, this innovative design of Euler Lightning Cat is responsible for the safety of the user’s life.
In terms of battery safety, “Worry-free Battery” has put safety first as the underlying logic at the beginning of its design. Through the five-layer safety protection system design of structural safety, pressure conduction safety, thermal insulation safety, insulation safety and intelligent safety, it can provide users with To provide a more comprehensive driving safety guarantee, and under the detection of the cloud big data platform, through the big data collaboration of “car + cloud”, a private battery doctor can manage the battery system of each Euler car around the clock, racing against time. , to escort life. All-round protection of travel safety, so that users can truly use the car without worry.
Euler Lightning cat will be listed soon, safety is still the first priority
As a global model of Great Wall Motors, the ORA Lightning Cat has defined high standards of body, occupant and electrical safety performance at the beginning of its development. The complete success of this challenge further proves that the Lightning Cat not only has outstanding appearance, but also has amazing vehicle safety performance, leading its strength. This high-speed spiral rolling and falling challenge not only verifies the safety performance of the ORA Lightning Cat, but also creates a new milestone for the improvement of the safety system of new energy vehicles, which greatly enhances users’ confidence in new energy pure electric products.
The new car will be launched at the end of October. Let us look forward to the surprise brought by this super streamlined pure electric coupe. Let the product value of “more than amazing” perfectly fit the user’s attitude towards life outside and repair inside, establish a new benchmark for industry strength, and let safety and worry accompany every trip.
*Disclaimer: The test vehicle in this challenge is the Euler Lightning Cat 555km Premium Edition, equipped with a “worry-free battery”. For the actual configuration, please consult the local ORA authorized dealer for details. For the specific configuration, product functions and related details, please refer to the actual vehicle.
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