That's not true. It is not that China can't produce high-quality automobile engines, nor can it write engine control programs. The engine electronic control program system has been applied for all patents by automobile countries such as Europe, America and Japan, and the automobile fuel engine can only be controlled like that. No matter what China does, it will infringe others' patents, and China can't bypass the control system. Production technology can be broken through, but patents can't be bypassed. Therefore, it is useless to produce an engine without a control system, that is, it cannot be produced commercially. At present, China's national automobile industry can only obtain the right to produce and sell automobile engines by purchasing patent rights or joint ventures. There is also the control system of automatic transmission. China can only manufacture and sell automatic transmission through joint venture or purchase of patent rights.
In other respects, because western countries developed earlier than us, there are still many areas in China that are subject to the patents of western developed countries, such as mobile phones for mobile communication, which contain many western patents. For example, the CPU on a computer can be manufactured in China, but it cannot be produced and sold commercially. The CPU produced can only be used within the military and the government. Because the two major manufacturers in the United States have registered all the patents of CPU for computers.
Now the situation is changing. The government advocates innovation. In the field of mobile communication, Huawei in China has obtained more than 50% patents. The design, manufacture and sales of mobile phones in China no longer look at the faces of western developed countries. This situation appears in more and more fields. China is really developing and making progress.