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Added on the 19/07/2019 15:57:51 - Copyright : Wochit
Mercedes-Benz - Crash test preparations - Hanna Paul, Crash Test Dummy Engineer
With the world’s first public crash test involving two fully electric vehicles, Mercedes-Benz is going above and beyond not only the legal requirements but also those of the ratings industry. Euro NCAP stipulates a frontal impact test using a 1,400 kg trolley with an aluminium honeycomb barrier replicating the front of another vehicle. In accordance with the specifications, the test vehicle and the trolley collide with an overlap and at a speed of 50 km/h. Mercedes-Benz, however, used two real vehicles, an EQA and an EQS SUV, which are significantly heavier at around 2.2 and three tonnes respectively. In addition, both models were faster, each going 56 km/h, which meant that the overall crash energy was considerably higher than required by law. The vehicles’ extensive deformation following the collision may seem alarming to the non-expert. For the Mercedes-Benz engineers, however, it shows that the vehicles were able to effectively absorb the energy of the collision by deforming. As a result, the passenger safety cell of both electric models remained intact and the doors could still be opened. In an emergency, this would make it possible for occupants to exit the vehicle on their own or for first responders and rescue personnel to reach them. The high-voltage system in the EQA and the EQS SUV switched off automatically during the collision.
With the world’s first public crash test involving two fully electric vehicles, Mercedes-Benz is going above and beyond not only the legal requirements but also those of the ratings industry. Euro NCAP stipulates a frontal impact test using a 1,400 kg trolley with an aluminium honeycomb barrier replicating the front of another vehicle. In accordance with the specifications, the test vehicle and the trolley collide with an overlap and at a speed of 50 km/h. Mercedes-Benz, however, used two real vehicles, an EQA and an EQS SUV, which are significantly heavier at around 2.2 and three tonnes respectively. In addition, both models were faster, each going 56 km/h, which meant that the overall crash energy was considerably higher than required by law. The vehicles’ extensive deformation following the collision may seem alarming to the non-expert. For the Mercedes-Benz engineers, however, it shows that the vehicles were able to effectively absorb the energy of the collision by deforming. As a result, the passenger safety cell of both electric models remained intact and the doors could still be opened. In an emergency, this would make it possible for occupants to exit the vehicle on their own or for first responders and rescue personnel to reach them. The high-voltage system in the EQA and the EQS SUV switched off automatically during the collision.
Police officers stand guard outside Downing street and search a car after it crashed into the street's entrance gates, Scotland yard has said. A man has been arrested according to police. Downing Street is the official residence of the UK Prime Minister. IMAGES
With the Lexus NX, drivers are on the safe side: Thanks to advanced assistance and safety systems, the premium SUV achieves five out of five possible stars, the best rating in the crash test of the independent testing organization Euro NCAP.The new edition of the successful model, which is available as a full hybrid NX 350h and for the first time as a plug-in hybrid NX 450h+, impresses in all four test areas. In addition to the exceptional vehicle rigidity, which contributes significantly to the high level of passive safety, the third generation of the standard Lexus Safety System + is responsible.Euro NCAP rates these assistance systems with an outstanding 91 percent – a top result. But the new Lexus NX also achieves an excellent 83 percent when it comes to protecting adult occupants, and even 87 percent when protecting children. There are also 83 percent for vulnerable road users.
The passenger compartment remained stable in the frontal offset test. Dummy readings indicated good protection of the knees and femursof the driver and passenger. It was shown that a similar level of protection would be provided to occupants of different sizes and to thosesitting in different positions. Chest protection of both dummies was marginal. In the full-width rigid barrier test, protection of the chest wasagain marginal for both occupants, with other critical body areas well or adequately protected. In the side barrier impact, all critical bodyareas were well protected and the car scored maximum points in this test. In the more severe side pole test, protection of the chest wasadequate and that of other body areas was good. Tests on the front seats and head restraints demonstrated good protection againstwhiplash injuries in the event of a rear-end collision. A geometric assessment of the rear seats indicated marginal whiplash protection. Anautonomous emergency braking (AEB) system is not available.
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