Research On Patent Analysis Of Electric Vehicles

Along with the traditional automobile brings the global energy crisis and the increasingly serious environmental pollution problems, development of new energy vehicles, especially the electric vehicle get highly action, alleviate and improve the auto industry dilemma of important ways. Electric vehicles in energy saving, environmental protection and noise reduction etc showed great superiority, therefore, all countries began to invest a lot of manpower and financial resources on electric vehicles. The key technologies of Electric vehicle includes battery technology, body and chassis technology, motor and its control technology, energy management technology, these technical r&d and innovation will be the future of the main direction of automotive technology development.After China's entry into the WTO, the electric vehicle market faced to the world competition environment which more and more complicated, many countries and enterprise choose the method using intellectual property rights to protect domestic electric vehicle technology. Patent as an important part of intellectual property; it consumes more than 90% of the technical intelligence information, which collect a variety of technical, legal information in the integral whole, a huge number, technical side wide, rapid, content published novel and reveal invention content full details, etc. Therefore, patent analysis were widely used in the field of the technology. Through the patent analysis of a technology situation, we can insight into the development trend of the technology, and master the technical development of competitors,and find out more patent output of inventor and their serving enterprises and explore new technology and other information, so as to provide the basis for enterprises to develop R&D strategy.This paper will introduce patent map into electric vehicle technology, the patent application of electric vehicle technology have a detailed analysis of the situation. Patent map originated from the 1960s, born in Japan since then has been widely in multiple countries, development and application of relevant patents in enterprises to formulate strategies and development policy has played a very important role. Patent map basically is to use all kinds of visual chart of expressions, through analysis of technical information, patent literature of complex patent information easy to be understood, strong visuality, so as to provide basis for enterprises to make decisions. Patent map generally includes three types, namely the patent management figure, patent clearly priced and patent rights figure, this article mainly from the three aspects of electric vehicle technology patents were statistically analyzed.①From the patent management level analyse the electric vehicles from the patent applications, patent inventor, the patentee, IPC classified number, main competitive national statistical in various chart form unfold, can understand China's electric vehicles patent development pattern, development situation and the main research areas of technology in China at present, still can see what are the main enterprise in electric vehicle research and development in advantageous competitive position and major foreign rivals the technical research and development status, etc.②The patent technology from the main technology of electric cars face categories, the patent technology layout and technical development trends etc. Carried on statistical analysis, which can be further understand and grasp the electric industry development status and development trend of technology.③Electric car from patent rights of patent law face patent and important state, kin patent quoted was analyzed and can understand China's electric car patent has legal effect, and the situation through the kin patents and important reference condition analysis, patent can be traced back to the earliest electric vehicle technology patent, enterprise can learn from these important patents and borrowing the advanced technology, setting up the development strategy is more perfect. Through the above three aspects of the patent analysis, can understand China's overall situation of the development of electric cars. Finally, in view of existent problems, for our country electric vehicle technology development put forward relevant countermeasures.