At the 2011 North American International Auto Show, Volvo Car Company exhibited a C30 electric vehicle with a frontal collision at a speed of 64 kilometers, which raised an important issue for the safety of electric vehicles to the automotive industry in an unusual and unique way. . Volvo Cars, with its pioneering research in the field of electric vehicle safety, once again demonstrated the company's 80-year history of continuous innovation and strong research and development capabilities.
Stefan Jacoby, President and Chief Executive Officer of Volvo Cars, said: “Our tests have shown that to make electric vehicles as safe as conventional cars, it is vital that batteries avoid the collision zone of electric vehicles. It is the first car manufacturer to show the world a truly safe electric vehicle after a high-speed collision."
Battery and cable intact
The show car is a Volvo C30 electric car. The crash test in the crash test chamber was performed with a fully charged battery. The collision was a frontal offset collision. At a speed of 64 kilometers, 40% of the front part of the car hit an obstacle. The test results are exactly the same as expected. The C30 electric vehicle provides the same high level of safety as the internal combustion engine type C30. The front of the car is deformed in the expected way, dispersing the collision energy. The cables in the battery and electrical system after impact are intact.
Large battery, small motor
The structure of electric vehicles is very different from that of traditional cars. New parts pose many new safety challenges. In order to make the cruising range of the Volvo C30 electric vehicle reach 150 kilometers, a battery pack weighing about 300 kilograms is required, which occupies much larger space than a conventional fuel tank. In the engine compartment, the internal combustion engine is replaced by a more compact and lighter motor. Not only that, the car also uses a 400-volt high-voltage electrical system.
Volvo's in-depth study reveals the importance of lithium-ion batteries in avoiding collision zones and cabins in cars. The same treatment is used for fuel tanks in conventional cars. Strengthening the front impact deformation zone is another challenge. The size of the motor is smaller and the space occupied here is smaller than before.
Battery is well protected
In the Volvo C30 electric vehicle, the battery is installed in the location of a conventional fuel tank and in the central passage area of ​​the vehicle. The batteries were reinforced and the steel beams surrounding the battery pack and other components of the car frame were reinforced. All cables are sheathed for maximum protection.
The collision sensor in the car also controls the circuit safety, and the signal that activates the airbag also cuts off the power within 50 milliseconds after the collision. The system is equipped with multiple insurances. When a ground fault is found, such as when the damaged cable comes into contact with the body frame, the fuse will be disconnected.
In a traditional car, the engine can help disperse incoming collision forces. On the C30 electric vehicle, this task is borne by a reinforced front-end structure that also helps absorb additional collision energy due to the increased weight of the car.
Comprehensive comprehensive safety testing
The crash tester is part of a rigorous test procedure. The test procedure also includes multiple virtual collisions. Parts and systems are also tested individually. In addition to the full-size frontal crash test, the C30 electric vehicle also underwent other crash scenarios, such as side impact and rear impact. The test protocol also includes front and side rigid column tests to ensure that the car provides the occupants with the best possible protection in the most common accident scenarios in real traffic.
"DRIVe" zero emission environmental protection strategy
The Volvo C30 electric car is just an integral part of the electrification strategy of Volvo Car Corporation, demonstrating Volvo's "DRIVe" zero emission environmental protection strategy. This strategy elucidates the future development direction of Volvo Car China's innovative products and technologies. According to this strategy, Volvo Cars will introduce more innovative powertrain technology into China in the future, which will provide both driving pleasure and green and efficient vehicles. As a luxury car brand with leading technology and social responsibility, Volvo Cars' DRIVe Green Driving Strategy proves its commitment to the Chinese market: introducing more innovative technologies and performing outstanding social corporate citizenship.
"DRIVe Green Driving Strategy" is Volvo's commitment to continuous technological innovation in environmental protection and driving pleasure. "DRIVe" contains two levels of meaning. DRIV means driving pleasure and strong performance; "e" means high efficiency, economy and outstanding ergonomics, and represents Volvo Cars' concern for the environment and people. Volvo DRIVe's green driving strategy uses innovative technology to ensure a harmonious co-existence of people, vehicles, and the environment, while ensuring excellent driving pleasure for users, highlighting a brand image full of passion, innovation, and humanistic qualities.
The DRIVe green driving strategy is divided into three stages. The first stage is the improvement of the traditional engine models. At present, Volvo has a number of ultra-low carbon dioxide emissions vehicles, including diesel ultra-low emission vehicles, equipped with GTDi+Powershift technology. Gasoline engine models, as well as engines equipped with Volvo's traditional leading technology turbocharger technology; the second stage is plug-in hybrid and pure electric vehicles, and Volvo will launch a batch-produced plug-in hybrid vehicle in 2012. . Pure battery power can handle 75% of daily traffic needs of European motorists. For longer distances, an efficient hybrid diesel engine will automatically take over, with a total cruising range of approximately 1200 kilometers; the Volvo C30 pure electric vehicle will be mass-produced in 2013, and if it is recharged using renewable energy, its actual CO2 while driving Zero emissions. The cruising range of a battery can be up to 150 kilometers. The third phase is the DRIVe green driving strategy's goal: by 2020, the average CO2 emissions of all Volvo models will be 90-100 grams per kilometre, until zero emissions are finally achieved. In this way, we will be in the market leading position in the field of environmental protection, and we will ensure excellent driving pleasure and safety standards when achieving environmental goals.
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