It's only been a few years since the development of electric vehicles, so many people don't have a clear understanding of the durability, loss and preservation of electric vehicles. However, as electric vehicles become the general trend of future automobile development, most people are still concerned about this aspect. On December 3rd, it happened that the vehicle dismantling workshop held an electric vehicle dismantling activity in Beijing. The dismantled vehicle was a Weilai ES8 that had been used for one year and three months, but its mileage had exceeded 1, kilometers.
after running 1, kilometers in more than one year, the utilization rate of this ES8 is relatively high, and the ES8 is also an electric vehicle with relatively high attention in China, and the whole dismantling activity is expected and concerned.
The tires in direct contact with the ground and the frequent use of brakes are the most common daily wear of both fuel vehicles and electric vehicles. However, because the kinetic energy recovery of Weilai ES8 can play a braking role, the wear of brake discs is not serious. In terms of body structure, Weilai ES8 adopts all-aluminum body, which not only reduces the body weight, but also plays an important role in corrosion resistance. In addition, in view of the safety performance of the all-aluminum body, the reinforcing parts between the front longitudinal beam and the sill beam of Weilai ES8 can improve the force dispersion during the front collision. Six penetrating reinforcing beams with different sizes are added on the inner side of the floor to reduce the damage of the battery in collision and improve the overall safety.
in suspension, weilai ES8 adopts active air suspension instead of coil spring. The air suspension can adjust the height according to the driving road conditions, which brings more comfortable driving experience, but the overweight body may lead to aging. However, the shock absorber of Weilai ES8 comes from ATE, and the failure rate of this brand is low. After 1, kilometers of driving, there is no obvious oil leakage and air leakage, and the overall use situation is still relatively good.
in addition to the daily wear and tear of chassis, people pay more attention to the wear and tear of chassis because the battery of electric vehicle is located at the bottom of the vehicle. Weilai ES8 is designed exclusively for electric vehicles, so a suitable position is reserved for the battery. After installing the battery, the chassis has a high flatness and a high ground clearance, which greatly reduces the collision between the bottom battery and the ground. In addition, Weilai ES8 is equipped with guard plates at the front and rear motors at the bottom, which is also a good protection for the motors. As for the bottom rubber parts, because the car has only been running for one and a half years, the rubber parts have not been excessively aged, and only a few parts have normal cracks.
the electric vehicle model has no engine and some mechanical parts, but the circuit is more complicated and the number of interfaces is more. In particular, Weilai ES8 uses the power exchange technology, and the interface is used more frequently. It is understood that the owner has changed the power for more than 1 times, but it can be seen that the battery interface is not worn and the docking accuracy is relatively high. However, the screws and threads that fix the battery have no overflow after hundreds of power changes. In addition to their reliable quality, the requirements for the accuracy and strength of the power changing equipment are also relatively high.
in addition to the wear and tear of chassis and battery interface, this disassembly activity is to disassemble the internal components of Weilai ES8. The disassembled reducer is an important part of the electric vehicle, and it is a part of the motor. The reducer is directly connected with the output shaft of the motor, and the gear is hard connected in the reducer to enhance the ride comfort and reliability during driving. The performance of its durability and wear degree is also more critical. After disassembly, the reducer gear has no obvious wear marks, and no metal debris is found in the remaining oil, so the overall state is relatively good.
the durability and preservation of electric vehicles have always been a concern of many people for this new thing, and many prospective owners of electric vehicles are hesitant. This car dismantling activity, Weilai ES8, shows us that this model has a good performance from the materials used for work to the durability of all parts of the vehicle. From these aspects, Weilai model can break the rumor that the used car has a low rate of preservation, and users can buy it with confidence. Coupled with the FOTA function of Weilai, both software and hardware can be upgraded, and the vehicle functions can be continuously updated and more new functions can be unlocked, thus truly achieving "common use and constant innovation". Not only that, with the launch of the official second-hand car trading platform, there is another layer of protection for users who choose Weilai used cars, which solves the problem of low preservation rate of electric vehicles. I believe that more people will choose electric vehicles in the future to meet their own travel.
This article comes from the author of Chejia, car home, and does not represent car home's standpoint.