Although China's auto industry has made great achievements, the situation in which the entire industry relies heavily on foreign brands and technologies has not changed.

In terms of patents, according to the statistics released by the State Intellectual Property Office of China, from 1985 to 2005, the total amount of invention patents applied by foreign companies in China was approximately 11.2 times that of domestic enterprises. Moreover, foreign companies’ patent applications are concentrated in key technologies such as on-board protection, engines, and electrical controls; domestic companies’ patent applications are concentrated in non-critical areas such as vehicle transmission and special transportation.

In foreign markets, there are very few patents deployed by Chinese companies. At present, there have been no signs of actively deploying patents to expand overseas markets. For example, according to the search of the database of the United States Patent and Trademark Office of companies and brand names, China’s Chang’an, Chery, Geely, FAW, Dongfeng and other famous automobile companies did not obtain any authorized patents in the United States, the world’s largest auto market, and they did not Disclose any patent application. In comparison, Toyota patented 10,483 patents in the United States, 2,486 public patent applications, 12,214 patents in the United States and 3,912 public patent applications. Domestic companies do not have many PCT patent applications. For example, Geely and Chery each disclosed one and two applications. Honda and Toyota each disclosed 2,462 applications and 2,863 applications. From these circumstances, China's auto industry needs to make breakthroughs in many major technology areas in order to achieve the rise of brands and technologies.

At present, the bidding for the 863 project in these six major areas has already begun. With the deepening of the research on the 863 project, China is fully capable of achieving a series of major technological breakthroughs in these six areas, helping domestic enterprises to completely break the intellectual property trap and rapidly promote the overall rise of China's auto industry.

Six Kinds of Patent Deployment of "Advanced Technology for Automobile Development" in China

(I) Advanced Technology for Integrated Development of Cars

Research in this area focuses on chassis chassis matching and performance optimization, collision safety technology, and vehicle noise (NVH) control techniques. In the past three years, China's State Intellectual Property Office has published about 1,200 service invention patent applications in this field. Among them, foreign companies accounted for more than 60%. Domestic enterprises accounted for about 34% of applications, and the rest were mainly for domestic scientific research institutions.

First, chassis technology. For example, the document No. 200510061026.8 relates to a computer-aided implementation method for the general layout of a car chassis. The document No. 200410104005.5 relates to a vehicle chassis dynamometer system, including a signal conditioning module, a data acquisition card, an industrial control computer, and a frequency converter. The input of the signal conditioning module is connected with the chassis dynamometer through the sensor, and its output is connected with the input end of the data acquisition card. The output of the data acquisition card is connected with the industrial control computer, and the signal conditioning module control output is also connected with the fan. The frequency converter is connected to a load controller connected to the motor.

Second, noise reduction technology. For example, the document No. 200610054365.8 relates to an automotive muffler consisting of a cylinder, three baffles, an air inlet pipe, an outlet pipe, and front and rear end covers. The partition partitions the cylinder into four chambers. The air inlet tube extends from one end of the cylinder and passes through the first and second to third chambers. The outlet tube passes through the second chamber, the third chamber and the fourth chamber from the first chamber. After the chamber is out, there are a certain number of micro-holes in the inlet pipe, the outlet pipe and the partition plate, so that the first, second, and third chambers form a resonant cavity, which can effectively reduce low-frequency noise. The fourth chamber is filled with sound-absorbing cotton to form an anechoic chamber, and at the same time, an anechoic sleeve is provided on the outer periphery of the rear section of the outlet tube. The 200510043862.3 document relates to an automobile exhaust muffler that can eliminate low, medium, and high frequencies of noise.

Third, safety technology. For example, the document No. 200510101159.3 relates to an explosion-proof safety valve for a dual-use fuel vehicle. A seal ring is designed on the outside of the safety valve housing, and an exhaust passage, a pressure chamber, an intake passage, and a mounting nut are arranged on the safety valve housing. It can effectively avoid the engine deflagration problem. The document No. 200580031820.6 relates to a reinforcing member for a lower region of a front bumper and an automobile front bumper for assembling the reinforcing member. 200610140742. Document X relates to a car side airbag guide plate, including a center column, a support frame, a roof plate, and the like. The document No. 200510085133.4 relates to a vehicle airbag inflator.

Fourth, shock absorption technology. For example, 200580030393. Document number X relates to a shock strut cap in an automobile body structure. It consists of two half shells which form a cavity between each other. The shock strut cap is integrated into the body structure as a hollow profile connection node for the adjoining body structure, so that the shock strut cap effectively strengthens the body structure and enhances the car's anti-collision ability. The document No. 200480025762.1 relates to a device and a method for enhancing passenger protection in a car when a side impact occurs. The document No. 200610044077.4 relates to a one-dimensional scanning Lidar car anti-collision system. The document No. 200610099747.2 relates to a technology for implementing a parking shock limiting function of a car brake device.

(II) Integrated development of advanced technology for heavy commercial vehicles

The research focus in this area is chassis integration matching and performance optimization, design of heavy-duty commercial vehicle cabs with reduced wind resistance, cab design, cab ergonomics design and optimization, cab structure design and matching, and cab noise reduction technology. Comfort design and so on. Most of the patent documents appearing in this field come from domestic companies and research institutes. Foreign applications mainly come from Japan and Europe. However, there are only about 720 new service applications for service inventions in the past three years. The related technologies are mainly distributed in the following areas:

First, component connection technology. For example, Document No. 03111835.6 relates to a method of connecting a liftable rear support shaft of a heavy-duty truck, wherein the upper left-hand hole of the support shaft swing arm has a nominal size of 81 to 100 mm and a dimensional tolerance of 0.054 mm. The nominal size of the head is 81 to 100 mm, the dimensional tolerance is 0.035 mm, the nominal size of the upper right end hole of the supporting shaft swing arm is 101 to 120 mm, the dimensional tolerance is 0.054 mm, and the nominal size of the middle of the shaft is 101 To 120 mm, the dimensional tolerance is 0.035 mm.

Second, gear technology. For example, the document No. 200410024132.4 relates to a new localized softening process for an active bevel gear of a heavy automobile.

Third, vehicle technology. For example, the document No. 02816515.2 relates to a body configuration. It uses the interchangeability of the body on the flat rolling chassis to develop new models. The technology can reflect various seat structure settings, different types of internal and external environments, including sound, lighting and other improvements to the body.

Fourth, cab technology. For example, 200480037488. Document X refers to a roof extension area for a truck driver's cab. The cab includes a left column in the advancing direction, a right column in the advancing direction, and at least one rear left column and at least one rear right column disposed in the advancing direction behind the door cutout, and the roof extension area includes at least Two roof arches covered by a roof cover. The first roof arch extends from the left post to the rear right post, and the second roof arch extends from the right post to the rear left post. Document no. 200480022697.7 relates to a cab for a commercial vehicle, comprising two hollow profile supports which are connected to a support structure and supported on the support structure so that in the case of a force acting on the front end, Hollow profile supports continue to transmit forces into the support structure. The document No. 200610018463.6 relates to a half-floating front suspension device for a cab, comprising an upper bracket fixedly connected with the cab, a lower bracket fixedly connected with the frame, and a connection between the upper and lower brackets and the upper bracket being flipped over The shaft is movably connected to the rubber support assembly fixedly connected to the lower bracket.

Fifth, tire design. For example, the document No. 200510048959.3 relates to a steel wire radial tire for a heavy-duty vehicle.

Sixth, heavy vehicle safety devices. For example, the 200510043950.3 document relates to a safety brake system for a truck.

Seventh, electronic control technology. For example, the document No. 200710003369.8 relates to an electrically-operated pneumatic control valve for a heavy-duty automobile clutch and an electronically-controlled pneumatic operating system.

(III) Development of Advanced Technology for Car Direct Injection Gasoline Engine (GDI)

Research in this area focuses on structural optimization of direct-injection gasoline engines, research on combustion technologies, direct-injection gasoline electronic control systems and control strategies, exhaust gas after-treatment systems, exhaust gas recirculation systems, China's high-sulfur fuel suitability studies, and technologies to reduce nozzle carbon deposition. Research etc. The service inventions in this field mainly come from Japan, Germany, and the United States. Chinese enterprises and research institutes also have a few applications. In the past three years, there have been approximately 140 new applications for service invention patents in this field, which are mainly distributed in the following technical areas:

First, the mixture gas formation technology. For example, the document No. 200410004473.5 relates to a method for forming a stratified gas mixture for a gasoline direct injection engine based on multi-stage injection, and also relates to a stratified lean combustion method for an electronically controlled gasoline direct injection engine at low and medium loads.

Second, combustion control technology. For example, the document No. 200610002140.8 relates to a combustion control method for switching combustion modes on a direct injection gasoline engine. It uses gasoline engine gas phase switching device to switch different gas distribution strategies within an engine working cycle. At the same time, it uses different fuel injection strategies. It uses intake stroke and compression overshoot two-stage fuel injection in ignition mode to switch between The process uses intake stroke, compression stroke, and three-stage fuel injection at the end of the exhaust stroke. In compression-ignition mode, two injections of fuel are injected at the end of the intake stroke and the end of the exhaust stroke.

Third, fuel atomization technology. For example, the document No. 200510009115.8 relates to a gasoline atomization device of a vehicle oil supply system.

Fourth, the engine electronic control technology. For example, the document No. 200510024460.9 relates to an electronically controlled EGR system for a vehicle engine, including a signal acquisition sensor, an electronic control unit (ECU), and the like. It also involves the main parameters of the valve, including the determination of the intake air mainstream hole, valve lift, exhaust outlet hole, etc., and the control strategy of the EGR system in various operating conditions of the engine.

Fifth, in addition to carbon technology. For example, the document No. 200610096952.3 relates to an automatic carbon removing device for an exhaust system of an automobile engine, and particularly relates to an automatic carbon removing technique for an exhaust heat exchanger and a muffler of an exhaust warm air device.

(D) Development of Advanced Technologies for the Car Dual Clutch Automatic Transmission (DCT)

The research focuses in this field are the development of software and hardware of electronic control systems and research on control strategies, the study of dual clutch separation and engagement and shift strategy, the development of matching calibration software and hardware, fault diagnosis and safety protection technologies, and the performance of product racks and loading. Reliability, product consistency, and electromagnetic compatibility test studies. There are few patent documents in this field, mainly from foreign companies, which are roughly distributed in the following technical areas:

First, a dual clutch transmission. For example, the document No. 200580002077.1 relates to a dual clutch transmission for automobiles. The dual clutch transmission has two input shafts, two clutches and at least two drive shafts. The document No. 200610095125.2 refers to an electric shift actuator for an electronically controlled mechanical automatic transmission or dual clutch automatic transmission.
Second, engine diagnostic control technology. For example, the document No. 200610159926.0 relates to an apparatus and method for controlling a vehicle. Before the engine is started, it performs the prediction of the engine start in advance, and performs the fault diagnosis of the equipment when the start of the engine is predicted. According to the diagnosis result, when the heater, the pump, etc. are determined to be normal, the heater and the pump are operated before the engine is started.

Third, control devices and system diagnostics. For example, the document No. 200480002111.0 relates to a model-based in-vehicle diagnostic apparatus and method that can improve diagnosis of a plurality of networked functional elements in a vehicle system and output system diagnostic information. The document No. 200480010820.3 relates to a fault diagnosis device and method for a vehicle control device. 200610066968. Document X relates to a vehicle fault diagnosis apparatus and method.

Fourth, wireless diagnostic technology. For example, the document No. 200410027347.1 relates to a wireless monitoring and fault diagnosis system and method for automobiles, including a control execution module and a control center. A control center and a control execution module wirelessly transmit and receive modules to achieve wireless control communication.

Fifth, automotive embedded control systems. For example, 200510116714. Document X refers to a vehicle-mounted embedded system, which includes a vehicle-mounted embedded platform connected via a bus, an on-vehicle display, a vehicle-mounted wireless communication unit, and the like.

Sixth, electromagnetic detection technology. For example, the document No. 200510031728.1 relates to an electromagnetic detector for diagnostic tests of electromagnetic compatibility of vehicles. It includes an electric field probe and a magnetic field probe, and is electrically connected to the low noise amplifier via an adapter.

(5) Advanced Technology for Developing Diesel Engines for Heavy Commercial Vehicles

Research in this area focuses on complete machine development, electronic control system development, and post-processing system development. The invention patents in this field mainly come from foreign companies; in recent years, the domestic patent applications in this field have been slowly growing, but the total amount is small, mainly related to the following technologies:

First, the diesel engine combustion method. For example, the document No. 200480012955.3 relates to an in-cylinder combustion method of a diesel engine that satisfies the emission regulations of a secondary locomotive.

Second, the diesel engine antiseptic composition was invented. For example, the document No. 00805991.8 relates to a monocarboxylic acid-based antifreeze composition for diesel engines for inhibiting and preventing aluminum from being corroded and corroded in aqueous liquids exposed to automotive refrigerant systems and other metals. corrosion.

Third, the whole machine and components were invented. For example, 02817464. Document X refers to a brake device for a truck trailer. Document No. 3112463.1 relates to a high-precision machining process for the longitudinal beam holes of a heavy-duty truck frame. The document No. 200610102069.0 relates to a sixteen-speed heavy-duty vehicle gearbox. The document No. 200610084381.1 relates to an in-line diesel injection and electronic control system for a vehicle diesel engine. 200480006189. Document number X relates to a vehicle brake pedal interlock for the shifting of a neutral to a meshed gear of a heavy vehicle. The document number 200510048394.9 relates to a method for controlling the engagement of a centrifugal clutch using an engine torque request signal.

(6) Development of Advanced Technology for Heavy Commercial Vehicle Transmission (AMT)

The research focuses in this field are the software and hardware of the electronic control system; the law of intelligent shifting and the rapid response control technology of the actuator; the comprehensive control technology of the AMT and the power system; the calibration technology of the vehicle power transmission system; the AMT fault diagnosis technology; AMT security Sex, reliability, electromagnetic compatibility, product consistency, etc. Most invention patents in this field, especially basic patents, have come from foreign companies; there has been no apparent increase in domestic patent applications. From the technical content, the relevant literature is mainly distributed in the following areas:

First, the transmission was invented. For example, the 200510017097.8 number relates to a gear type continuously variable transmission. It adopts the combined structure of two planetary systems. The planet carrier is shared. The two planetary gears are fixed together on the same shaft. The planetary gears mesh with the two sun gears respectively. The two planetary gears have no ring gear, and the planet carrier uses bearings. Fixed on the body.

Second, the alloy was invented. For example, the document No. 89101100.5 relates to a vibration damping alloy for a vehicle transmission case. It replaces cast iron or common cast aluminum alloy with aluminum-zinc base damping alloy, which can significantly reduce the transmission noise and improve the box performance.

Third, shifting technology. For example, the document No. 91100823.3 relates to a vehicle electronically-controlled pneumatic power shifting device and method. It sets a reasonable shift point for each gear according to the speed of the car. The electronic logic selector switch automatically selects gears and controls the pneumatic actuators to achieve power shift.

Fourth, help system. For example, 02135345. Document No. X refers to a heavy-duty vehicle power steering dual-circuit hydraulic power assist system. Among them, two steering assist cylinders are installed on each steering axle to form two loops respectively. The main pump is a double pump and has two single pumps that provide power to the two loops.

In addition to taking the above six advanced technologies as research directions, China's “Eleventh Five-Year Plan” has set up two other research directions in the field of “advanced technologies for automobile development”: statistical measurement and application software development of typical automobile road spectrum in China; and automotive technology standards , specification, development strategy research. In the latter two research directions, China's State Intellectual Property Office has also published many patent documents. For example, many patent documents have emerged in the fields of statistical software, road network monitoring and simulation software, patent search and statistics methods, and automotive technology standards. These documents can also provide useful reference for the development of related 863 projects in China.



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