r？ & The D ability of self-owned brand cars is not good, but the cottage ability is absolutely first-class. Zotye imitates Porsche, and H6' s chassis imitates CRV. But why don't independent brand cars take apart Honda's engine, study and copy it, and make it into their own engine? In fact, car companies with their own brands want to do the same. After all, disassembling other brands of engines and imitating manufacturing can save a lot of detours and greatly save the product development cycle. But after some research, we really don't have that ability! The design principle of spare parts is the core secret of foreign manufacturers.
There was once a manufacturer who took Aisin's 6AT gearbox apart and copied it one by one according to the size of the spare parts. After assembly, the mute, heat dissipation, transmission efficiency and durability are far from Aisin's 6AT. Of course, some people say that it is only the imitation of the overall size, and the material and accuracy of the parts are simply unknown. But think about how many joint venture cars there are in our country. I believe that all domestic technicians can get the drawings of joint venture car body sheet metal parts, including the suppliers of sheet metal parts.
But why is the body weight of domestic cars heavier but not as strong as joint venture cars? Actually, the reason is very simple. Even if we have the body sheet metal drawings of the joint venture car, we don't know why others design it this way, because the body structure of the joint venture car is designed abroad and imported into the joint venture factory, and the parts are made in China. Among many domestic car companies, BYD boldly admits that it has made good achievements in the reverse research and development of other people's engines. Everyone looks down on reverse research and development. Also has the ability of reverse research and development; d？ Although it can't be restored one by one, it can also create an explanation. As for why Honda's Earth Dream Engine is not developed in reverse, it is because domestic car companies have no way to start or even copy it.