In early 2009, we conducted a questionnaire survey on five major assembly companies, including engines, transmissions, axles, and brake system steering systems. In this survey, the company's product development capability research was conducted through four dimensions, including the product development method, the control of key component resources, and the basic capability for the development of key technology-based products. Product Development Capability of Engine Assembly and Parts 1. Basically capable of local engine technology upgrading and variant product development, but the development of new platforms and the concept of complete machine, oil supply system, and electronic control system are still heavily introduced from abroad or rely heavily on foreign companies. We divide the engine development into four levels of development: local technology upgrades, variant products, and new product replacement platforms. The survey shows that when companies need a new engine platform, one-third of them choose to import products directly from abroad, and 25% of companies choose the “joint development with foreign countries†approach, indicating that the development of a new engine platform for the enterprise is still largely dependent on foreign countries. Products foreign companies. We also divided the engine development into engine concept development, engine 5C (cylinder block, cylinder head, crankshaft, camshaft, connecting rod) structure development, engine matching, and combustion system, oil supply system, cooling system, infeed Gas system, post-processing system electronic control system development. The survey results indicate that 46.2% and 45.5% of the engines are developed on the engine concept development engine, and 46.2% and 45.5% of the engines are usually imported directly from abroad. About 60% of the electronic control systems for the company's oil supply system are developed, and foreign development methods are adopted. Directly introduced abroad. Therefore, on the development of important engine systems such as engine concept, 5C structure, and electronic control system for oil supply systems, Chinese companies have a high degree of dependence on foreign technology companies. 2. The control ability of engine 5C parts is strong, but the control ability for a large number of externally purchased parts and components related to energy saving and emission reduction is weak, and the diesel engine is weaker than the gasoline engine. The survey results showed that the cylinder heads of the companies surveyed were mainly self-controlled, and the crankshaft and camshaft connecting rods were mainly purchased from outside. Gasoline diesel engine fuel supply systems, electronic control systems, exhaust gas aftertreatment systems, valve timing variable systems, booster systems, etc. are key energy-saving and emission-reduction system components and are part of a “fully outsourced†component system. Parameter definition capability integration capabilities are weak. 3. The key technical foundations are generally weak, and the technical foundation related to the development capabilities of electronic control systems is the weakest. We divide the key engine technology base into six technical aspects: CAE analysis capability, kinematics/dynamics analysis capability, thermal management analysis capability, electronic control system development capability, heavy-duty engine product technology, and light engine product technology. The survey results show that the surveyed companies generally have relatively low technical details on the six technical aspects, with the exception of the kinematics/dynamics analysis capability, which averages 60%, and the remaining five technical averages, which average 30% or less. 4. The basic capability of product development can reach the level of “basically havingâ€, and the trial production capability is strong, but the test capability has a large gap. Product development capability of transmission assembly and its components The analysis of the transmission assembly production enterprise involves three aspects: the basic capability of product development and the development of key component resource control products. 1) China's automobile transmission production is still dominated by mechanical transmissions, and automatic transmissions mainly rely on imports. At present, the proportion of automatic transmissions used in high-end global passenger vehicles is as high as 90%, China's proportion is only 30%, and 78% of automatic transmissions rely on imports. 2). The mechanical transmission product development capability is strong, and the assembly and component development can be completed by domestic autonomy. Transmission components include: dry clutches, transmission housings, gears, synchronizers, differentials, parking brakes, shift forks, bearings, hydraulic oil supply systems (pumps/filters), cooling lubrication systems, Pneumatic systems. The survey data shows that China has a strong ability to independently develop mechanical transmission products. Japanese Car Brake Pads,Vehicle Parts Brake Pads For Toyota,Auto Parts Brake Pads For Toyota,Rear Brake Pads For Toyota Truck DONGYING BORUI BRAKE SYSTEM CO.,LTD. , https://www.boruiauto.com