At the beginning of the birth of the car, it was still produced by hand workshops. It takes 728 man-hours to assemble a car, which is far from the production efficiency of getting off the assembly line in a few minutes. By 1908, the first real automobile production line was established, the assembly time of the whole vehicle was shortened to 90 minutes, and automobile production also entered the 2.0 era.
1970, Volkswagen first put forward the concept of "platformization". Platform production can be understood as the upgrading and optimization of different models on a set of production standards. Different vehicles from the same platform have the same structural elements, such as doorposts, fenders and roof contours. , which are packaged into blocks on a per-assembly basis. When developing a new car, each module can be assembled directly like a stack of wood. Volkswagen MQB Through the MQB platform, the Volkswagen Group has unified more than 240 models from more than 65,438+000 factories in 22 countries, and achieved parts exchange worldwide. And can make full use of experience to improve the running quality, shorten the development cycle, reduce the production and assembly time, greatly improve the production efficiency and reduce the cost of making cars.
With the increasing demand for product diversification in the automobile market, platform-based production can no longer meet the growing demand for segmentation and personalization, because the range of models covered by platform-based production is limited, and if the wrong template concept appears, it will affect the production of the whole platform, so more flexible and changeable structured production emerges as the times require.
The architecture is more like an upgraded version of Platform 2.0, which is more inclusive and covers a wider range. It not only has an optimized production system in product design, R&D and production, but also has a brand-new concept of making cars, and the parts and technologies between its models are more universal. * * * solutions can be provided for the research and development of different models, so that vehicle research and development can choose from the list of * * * solutions according to brand positioning, user positioning and market positioning, and then do targeted research and development, which can be said to cover the whole process of a car enterprise from research and development to manufacturing. The most representative one is Lectra's CMA basic module architecture.
CMA basic module architecture has more choices in body size, function, attributes, cost and so on. The models that can be developed on the basis of CMA are more diverse, which can cover different levels of vehicle development from A0 to B to meet the needs of different groups of people. Moreover, the general rate of its parts can reach 86%, and the general rate of Volkswagen MQB is between 70-80%. In addition, the CMA basic module architecture can be seamlessly compatible with KERS kinetic energy recovery system, HEV hybrid system, PHEV plug-in hybrid system and even zero-emission EV electric drive system. At this time, the advantages of building a car based on CMA basic module architecture are reflected: more changes in models and faster development and listing. Thanks to the leading position of CMA basic module architecture, the three-dimensional product layout of "SUV+ car", "fuel+new energy" and performance sports car was quickly completed in just three years, occupying full market initiative.
In addition, such as the core processor, communication technology and sensor technology of electronic system, the update iteration is very fast. Although the CMA basic module architecture was not launched in the world until 20 16, youth is not the shortcoming of CMA. It is because of youth that CMA basic module architecture is the cutting-edge technology for the future. Standing at the forefront of the electric, intelligent, interconnected and enjoyable global automobile revolution, the FlexRay bus of CMA basic module architecture can better meet the user's demand for response speed and execution accuracy. Compared with the CAN network used by the public, the transmission rate of FlexRay is increased by nearly 20 times, which is equivalent to the difference between the expressway and the ordinary highway, which also ensures the vehicle iteration in the next 10- 15 years, which means that users can enjoy the convenience brought by the latest technology for a long time.
Thanks to FlexRay's efficient transmission rate, the basic module architecture of Lectra CMA has set a new standard at many levels, and its core powertrain reliability standard has improved by 46% compared with the international standard. Vehicle safety has obtained five-star+certification from authoritative organizations such as C-NCAP, and it has also performed well in intelligent driving, with intelligent interconnection functions such as three-screen interaction, cloud technology, remote control and car APP. With China's breakthrough in the scientific and technological progress such as 5G communication, high-performance processor and lidar, CMA can also achieve faster evolution than MQB. In today's rapidly changing market structure, CMA basic module architecture can be regarded as a future-oriented product, which can bring consumers a real-time online high-end car purchase experience.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.