1573 results about "Automotive electronics" patented technology

The invention discloses a panoramic parking assist system, which is a technique applied to the fields of automotive electronics and auto safety driving assistance. The system comprises a camera input module, an image correction module, a bird-eye perspective module, an image mosaicking module, a histogram equalization module and an image display module. The system is used for effectively solving the problem of car crash accidents caused by that the driver can not fully observe the situations around the car in the process of parking. By using the system, a 360-degree top view around a car bodyin real time can be showed for the drivers, so that the drivers can clearly see the relative positions of obstacles around the car body and the distances between the obstacles and the car body; and the blind visual areas around the car body can be eliminated so as to improve the security and stability of car in the process of parking. Through integrating a plurality of machine vision and digital image processing algorithms and fusing a plurality of advanced techniques in the field of machine vision, and based on the advantages of low cost, high performance, strong portability and the like, the system is convenient to be popularized and applied widely.

A motor vehicle safety system determines the state of automotive electronic devices as a function of speed to minimize potential distractions to the driver. Vehicle speed data is supplied to a rules based system which applies rules to determine what functions, at a given speed, within the respective electronic devices are available.

A lateral double diffused MOSFET (LDMOST) incorporates both the reduced surface field (RESURF) and super junction (SJ) in a split-drift region to significantly improve the on-state, off-state and switching characteristics in junction-isolated (JI) technology. The structure effectively suppresses substrate-assisted-depletion which is the main problem encountered when applying the SJ concept to lateral power devices. The device structure features a split-drift region formed of two parts: a SJ structure that extends over most of the drift region, and a terminating RESURF region occupying a portion of the drift region next to the drain. The structure offers improved breakdown voltage and reduced specific on resistance as compared to convention structures, and is useful in power integrated circuits suitable for a variety of applications including flat plasma panel display, automotive electronics, motor control, power supply and high voltage lamp ballasts.

The invention belongs to the technical field of vehicle-mounted systems and automobile electronics, and relates to a pedestrian and vehicle detecting method and system based on multi-vehicle cooperation. The method comprises the steps that a vehicle-mounted sensor collects the state data of traveling vehicles, and a vehicle-mounted camera is guided to collect images; time stamps, corresponding traveling state data and current GPS data are added to the collected images, and a vehicle-mounted self-organization network is used for broadcasting the images to vehicles on the adjacent network nodes; an image processing module processes local data and the received data to synthesize a panoramic image and carries out pedestrian detection to generate an early-warning prompt instruction; an early-warning prompt module prompts drivers to avoid dangers which possibly appear in a sound and displayer display mode after receiving the instruction of the image processing module. According to the pedestrian and vehicle detecting method and system, the multi-vehicle cooperation way is provided for the first time, view blind zones existing during driving are eliminated for users by means of the different position advantages of different vehicles, and driving safety is improved.

The invention discloses a remote controller, Bluetooth hands-free equipment and Bluetooth control system and method, wherein the Bluetooth control system comprises the remote controller and the Bluetooth hands-free equipment; the remote controller is used for generating a Bluetooth starting signal or a Bluetooth shutdown signal according to user control and wirelessly sending the Bluetooth starting signal or the Bluetooth shutdown signal to the Bluetooth hands-free equipment; and the Bluetooth hands-free equipment is used for automatically searching Bluetooth wireless equipment according to the Bluetooth starting signal and connecting the searched Bluetooth wireless equipment. The invention reflects the technical effect of combining automated and intelligentized automobile automotive electronics with Bluetooth and improves the scheme of a Bluetooth vehicle-mounted hands-free system.

The invention discloses a vehicle-mounted equipment gesture control system and a usage method thereof. A CPU (central processing unit) at a vehicle-mounted platform part of the system is connected with an electronic control unit of vehicle-mounted equipment through a CAN (controller area network); the CPU is connected with a projector; a DSP (digital signal processor) at a gesture recognition part of the system is connected with two sets of identical and parallelly arranged infrared cameras; and the CPU is connected with the DSP which is connected with an infrared gain. The usage method comprises the steps as follows: the CPU acquires manipulation information of each vehicle-mounted equipment through the CAN and generates a manipulation map, the manipulation map is projected on a piece of front windshield glass, a finger moves in front of a lens, a related area of the manipulation map is discolored / deformed to display options, and the finger clicks the determination in the air; the equipment required to be manipulated is determined by the DSP according to the finger position and a moving signal which are captured by the cameras; and the CPU controls corresponding equipment states or takes information according to the manipulation signal. A driver manipulates the automotive electronic equipment without transferring eyesight to an operation panel, different gestures are not required to be memorized, and the manipulation is convenient, simple and safe; and besides, CANs of various automobiles are compatible with the system, and the mounting and the use are facilitated.

The invention relates to an organic silicon-modified water-based UV (ultraviolet) coating and a preparation method thereof, and belongs to the technical field of environment-friendly coatings. The organic silicon-modified water-based UV coating comprises the following components in percentage by mass: 30 to 55 percent of organic silicon-modified hyperbranched water-based urethane acrylate, 20 to 50 percent of filler, 1 to 10 percent of photoinitiator, 0 to 3 percent of auxiliaries and 5 to 30 percent of water. The preparation method comprises the following steps: fully grinding the organic silicon-modified hyperbranched water-based urethane acrylate, the filler and water in a proportion, performing dispersion for 1 to 2 hours at 40 to 50 DEG C at a rotating speed of 400 to 600rpm, adding the photoinitiator and the auxiliaries, and uniformly stirring and standing a mixture to obtain the water-based UV coating. The coating is environment-friendly, nontoxic, high in curing speed, stability, aging resistance, solvent resistance, adhesive power and abrasion resistance and suitable for a plurality of coating modes and production requirements, and can be widely applied to the surfaces of automobiles, electronic products, ships, furniture and packaging printing materials.

The invention relates to the technical field of automotive electronic control. An intelligent management system of an automobile power supply comprises an MCU (Microprocessor), a power supply processing circuit, a plurality of intelligent power controlled circuits, a temperature monitoring unit and a CAN (Controller Area Network) communication unit, wherein an input end of the power supply processing circuit is connected to a storage battery and an engine power supply; an output end of the power supply processing circuit is connected to the MCU; input ends of the intelligent power controlled circuits are connected to the storage battery, the engine power supply and the MCU; output ends of the intelligent power controlled circuits are connected to a power supply end of an automobile externally connected ECU (Electronic Control Unit); the circuits are used for detecting current and voltage of the storage battery and the engine power supply, simultaneously receiving a control signal of the MCU, and adjusting power output according to the control signal so as to output a plurality of paths of controlled output and constant-voltage output; the temperature monitoring unit is arranged on heating areas of a storage battery bin and an engine bin; an output end of the temperature monitoring unit is connected to the MCU; and a signal end of the CAN communication unit is connected with the automobile externally connected ECU and the MCU. The intelligent management system of the automobile power supply is applicable to automobiles applying the CAN bus technology.

The invention discloses a smectic phase liquid crystal dimming sheet and a manufacturing method thereof. The dimming sheet comprises two body layers; a smectic phase liquid crystal dimming film layer is arranged between the two body layers; the smectic phase liquid crystal dimming film layer comprises two conductive electrode layers; a mixing layer is arranged between the two conductive electrode layers; the inner side face of each body layer is adhered to the outer side face of the corresponding conductive electrode layer through an adhesive layer; and a matrix layer can be arranged between each conductive electrode layer and the adhesive layer. The manufacturing method comprises the following steps of: cleaning and drying the matrix layer; manufacturing the conductive electrode layers; manufacturing the mixing layer; laying the adhesive layer and the body layers to obtain an initial laminated structure of the dimming sheet; and pressurizing, heating and cooling to obtain the dimming sheet. The dimming sheet provided by the invention has the characteristics of multiple steady states, is green, has low carbon, is healthy and environment-friendly, and can be widely applied to fields, such as architectural ornament and decoration, privacy control area and automotive electronics. The manufacturing method provided by the invention is simple and easy to control, has very low cost and is suitable for industrialization.

The invention discloses an application data processing method and an application data processing device based on a vehicle-mounted multimedia terminal, which belong to the field of automotive electronics. The method comprises the following steps that a starting command is received, and via the connection between the vehicle-mounted multimedia terminal and a mobile terminal, a starting instruction is sent to the mobile terminal; when receiving the starting instruction, the mobile terminal parses the starting instruction to obtain a specified application identifier, then an application is started, the data content corresponding to the application is obtained and sent to the vehicle-mounted multimedia terminal, and therefore the vehicle-mounted multimedia terminal can play the data content. The application data processing device comprises a starting command receiving module, a starting command sending module, a data content playing module, a starting instruction receiving module, a starting instruction parsing module, an application starting module and a data content obtaining module. As the adoption of the scheme provided by the embodiment of the invention does not require facilities to be added in an automobile, the cost is reduced, and moreover, safety is higher.

The invention discloses a method and a system for rapidly positioning an automobile diagnosis application program, and belongs to the technical field of automobile electronics. The method comprises the following steps that automobile diagnosing equipment collects a VIN (Vehicle Identification Number) of an automobile, and identifies a manufacturer number and a type number of the automobile; a corresponding diagnosis application program is searched according to the type number; an icon of the searched diagnosis application program is placed in the top or in a place which allows a user to operate easily. By the adoption of the method and the system provided by the invention, the diagnosis application program corresponding to the type number is automatically obtained, and the icon thereof is placed in the top or in the place which allows the user to operate easily, so that the time of operation by the user is shortened, and the user experience is bettered; in addition, under a circumstance of failing to match the diagnosis application program, the demand about the diagnosis application program of the type number is uploaded to an equipment manufacturer; therefore the collection of newest type diagnosis demands by the equipment manufacturer is facilitated, and the function of the diagnosing equipment is timely updated.

The invention provides a vehicle control method and device based on a BSG motor and belongs to the field of automobile electronic control. The vehicle control method and device based on the BSG motoris used in an engine controller. The vehicle control method based on the BSG motor comprises the steps of receiving current vehicle information collected in real time, wherein the current vehicle information comprises a current engine state, a current gear, a current vehicle speed, a current first battery capacity, a current second battery capacity, a current BSG motor mode, a current acceleratorpedal opening, a current brake pedal opening and a current coolant temperature; according to the current vehicle information, determining a control strategy; according to the control strategy, transmitting a corresponding control signal; according to the current vehicle information, the control strategy and the corresponding control signal, judging the current fault mode; and according to the current fault mode, transmitting a corresponding alarm indication signal to an instrument panel. Therefore, the vehicle control strategy with 48-volt weak mixing system is integrated in the engine controller so that the vehicle is controlled by at a low cost on the basis of the BSG motor.

The invention discloses a vehicle-borne emergency call-for-help system and a call-for-help method thereof, which enable manual call-for-help and automatic emergency call-for-help for car accidents to be realized and belong to the technical fields of automotive electronics and communication. According to the system and the method, embedded and integrated navigation technology and communication technology are adopted so as to realize manual or automatic emergence call-for-help. Vehicle collision detection is carried out through vehicle motion information acquisition by an information acquisition device in the system and safety airbag ignition detection; then, collision information is transmitted to a central processing unit for processing; and processed data and pre-stored basic vehicle information are transmitted and received through a triple-redundancy method via short message, network and voice DTMF at most and reliable technologies such as non-normal termination decision, dual antennas and standby power supplies are adopted so as to improve the success rate and reliability of call-for-help and rescue. According to the system provided by the invention, an original vehicle is only modified a little, and the system is suitable for all vehicles and has a wide range of application.

The invention discloses a mobile car networking cloud service platform system and relates to the technology of a car networking system, in particular to the technologies of car remote diagnosis and media information and a service system. The mobile car networking cloud service platform system integrates various interdisciplinary technologies such as the car remote diagnosis, automotive electronics, mobile communication and global position system (GPS) positioning communication. The mobile car networking cloud service platform system is achieved by means of the car networking cloud service platform technology, and comprises hardware and software, wherein the hardware comprises a detection module, a communication module and a positioning module, the software comprises a cloud computing platform, and a large number of car databases are arranged at the bottom ends of the three modules of the hardware and the cloud computing platform of the software to serve as data support, and are used for analyzing and diagnosing relevant data. A round-the-clock call center is used for tracking, monitoring and diagnosing the information of all cars in the cloud service platform system in real time, provides timely and all-dimensional services for car owners, and firmly guarantees convenient, rapid, safe and worry-free travel of the car owners.

The invention relates to the network management field, and discloses a network dormancy method, a network dormancy device and an electronic control unit (ECU) based on an open system and the corresponding interfaces for automotive electronics (OSEK) standard. The network dormancy method based on the OSEK standard comprises the following steps: classifying ECUs to different local fields, loading personal identification, the identification of the local fields, the identification of states, and subsequent ECU identification in a first network management message produced by the ECUs, judging based on the first network management message, producing a dormancy order when all the ECUs in a local field meet dormancy conditions, and enabling all the ECUs in the local field to enter a dormancy state. Only if all the ECUs in the local field meet dormancy conditions, the ECUs in the local field enter the dormancy state through the network dormancy method based on the OSEK standard. The ECUs can enter the dormancy state unless all of the ECUs in a network segment meet the dormancy conditions in the prior art. Compared with the prior art, the network dormancy method based on the OSEK standard is favorable to realizing dormancy of the ECUs, and saves energy consumption.

The invention relates to an electronic hill-holding control system and an electronic hill-holding control method for electric vehicles. The control system comprises a motor controller, a hill-holding module and a hill start module, the hill-holding module is used for judging whether a vehicle moves backwards on a hill according to the gear position of the vehicle and the turning of wheels, sending a hill-holding signal to control the motor controller to be switched from a torque control mode to a speed control mode when not detecting the braking signal of a brake device and controlling the rotational speed of the wheels to be zero; and the hill start module is used for sending a starting signal to control the motor controller to be switched from the speed control mode to the torque control mode controlled by an accelerator when the given torque of the accelerator is higher than the torque needed by hill holding. By switching the control modes of the motor controller when judging hill holding and hill start, the invention can automatically carry out the hill-holding and hill start functions of the electric vehicle, the whole process is continuous and reliable, and the vehicle is prevented from moving backwards when starting on the hill.

Provided is an automobile leasing and renting system and a method using the automobile electron and the mobile device, including the steps: obtaining the automobile data to perform the matching action from a databank after the information center receives the leasing requirement, and generating a first datum and a second datum, wherein the first datum includes an collection cipher, and the second datum includes a user cipher matching with the collection cipher; transmitting the first datum to a moving device of the user and transmitting the second datum to a controller an automobile by the information center; when the users use the moving device to transmit the collection cipher, to the controller, the controller validates the collection cipher and the user cipher, if matching, the user is allowed to start the automobile.

The invention discloses an abrasion-resistant composite material and a preparation method thereof. The composite material disclosed by the invention consists of the following components in parts by weight: 100 parts of plastic resin, 5-30 parts of filler, 0.1-2 parts of coupling agent and 0.1-2 parts of processing aid. The composite material disclosed by the invention has excellent abrasion-resistant property, so that the application field of B4C (boron carbide) is expanded; the composite material with excellent abrasion-resistant property can be prepared by compounding the abrasion-resistant composite material with polytetrafluoroethylene powder; the abrasion-resistant property thereof is better than the effect of independent utilization of B4C or polytetrafluoroethylene; the application field is board; and the composite material is applied to the fields of automobiles, electron and electric, aerospace, weaponry and the like.

The invention relates to the technical field of automobile electronics relevant to vehicle safety driving and discloses a vehicle over-speed detection method, a vehicle over-speed detection device and a vehicle over-speed alarm system. The vehicle over-speed detection method comprises the following steps of: according to speed identification information and removal speed limit signboard information on a speed limit signboard in a shot outside image, determining a limited speed of a road section where a vehicle currently runs; according to speed indication information on a shot inside vehicle speed display instrument image, determining a current vehicle speed of the detected vehicle; and according to the current vehicle speed and the limited speed, performing over-speed detection. The vehicle over-speed alarm system comprises a vehicle over-speed detection device, a first shooting device which shoots the outside image, a second shooting device which shoots the inside vehicle speed display instrument image, and an alarm device which gives an alarm in real time during over-speed. By the invention, the over-speed of the vehicle can be automatically determined, and the alarm for over-speed can be given in real time.

The invention provides a test system of a hybrid electric vehicle, which belongs to the technical field of automobile electronics. The test system overcomes the defects of more test personnel, large data acquisition workload, complex operation, large measurement error and the like in the existing method adopting manual monitoring and testing. The test system of the hybrid electric vehicle comprises a CAN bus and a PC machine, wherein the CAN bus is provided with a plurality of nodes; the PC machine is connected with the CAN bus; the PC machine comprises a central processing unit, and a message resolving module, a memorizer and a display which are connected with the central processing unit; a data acquisition module is connected between the CAN bus and the message resolving module; and the data acquisition module is used for acquiring information of each node from the CAN bus and displaying the information on the display after the resolution by the message resolving module. The test system of the hybrid electric vehicle can accelerate research and development, can quickly detect the state and display the fault, and has the advantages of high speed, low electromagnetic radiation, anti-electromagnetic interference, cost saving and the like.

The invention discloses a SiC IEMOSFET (Implantation and Epitaxial Metal-Oxide -Semiconductor Field Effect Transistor) device with an epitaxy channel and a manufacturing method of the SiC IEMOSFET device, which mainly solve the problems of low channel electron mobility and high conductor resistance of the traditional SiC IEMOSFET device. The device disclosed by the invention comprises a grid electrode (1), a SiO2 insulating medium (2), a source electrode (3), a source region N<+> contact (4), a P<+> contact (5), a P<-> epitaxy layer (7), a JFET (Junction Field-effect Transistor) region (8), aP well (9), an N<-> drifting layer (10), an N<+> substrate (11) and a drain electrode (12), wherein an upper epitaxy channel layer (6') with the thickness of 0.1mum-0.2mum and the nitrogen ion dopingconcentration of 3*10<16>cm<-3> is arranged between the SiO2 insulating medium (2) and the JFET region (8) so that a conductive channel of the device in a working state is far away from SiO2 and SiCinterfaces and the impact of the surface scattering on the electron mobility is reduced. The SiC IEMOSFET device has the advantages of high channel electron mobility, low on-state resistance and low power dissipation and can be applied to fields such as switching mode voltage stabilizers, automotive electronics and power amplifiers.

The invention relates to the technical field of automotive electronics and discloses a method allowing cellphone APP (application) startup by cellphone interconnection. The method includes the steps: a vehicular multimedia device is in communication connection with a cellphone, a user command is input into the vehicular multimedia device, the vehicular multimedia device generates a control command according to the user command and outputs the control command to the cellphone connected, the cellphone receives and responds to the control command and directly starts a corresponding APP installed in the cellphone according to the control command, a cellphone interface image is projected and transmitted to the vehicular multimedia device, and the vehicular multimedia device displays a cellphone APP interface. By the use of the method and the vehicular multimedia device allowing the APPs installed in the cellphone to be started without providing special APPs in the cellphone, the process of starting the cellphone APPs during interconnection of the vehicular multimedia devices is simplified, and product experience is improved.

The invention provides an automobile electronic control unit ECU flashing method and an automobile electronic control unit ECU flashing device, which are applied to an upper computer. The automobile electronic control unit ECU flashing method comprises the steps of: acquiring a configuration file which is required for flashing a plurality of ECU and configured for the upper computer by a finished automobile management computer, wherein the configuration file comprises data to be flashed into each ECU and auxiliary data used for flashing each ECU; verifying ECU flashing permission of the upper computer; and performing batch flashing on the plurality of ECU connected with the upper computer according to the configuration file when the verification on the ECU flashing permission of the upper computer passes. The automobile electronic control unit ECU flashing method and the automobile electronic control unit ECU flashing device can utilize various kinds of CAN card tools to complete ECU batch flashing of different automobile models, different flashing process and different file format application programs, and the batch flashing can be conducted on the same network segment or different segments in sequence.

The present invention relates to a CAN bus meter vehicle controlling information processing method for a hybrid power driven passenger car, which belongs to the automobile electronic intelligent meter field. The method is by the LAN connection of the CAN bus interface unit inside a singlechip and a standard controller arranged in the vehicle to receive the information data packet sent on the CAN bus network by each controller in the vehicle; by controlling the singlechip program to collect the vehicle controlling information of the hybrid power driven passenger car; by calculating and concluding to analyze out the integrative information and the history operation state of the stored vehicle; by the lattice type color liquid crystal screen to realize animated cartoon in the form of characters, sliding bar patterns, and flowing vectorgraphs; by the form of dynamic coordinate point and the dynamic movement curve in the two dimensional coordinate chart to display the vehicle controlling information of the hybrid power driven passenger car. The prevention improves the safety and the economical effect of the vehicle greatly, and is applicable for the characteristic of complex state and large information volume of the mechanical and electrical hybrid power driven passenger car.

The invention relates to the field of automotive electronics, in particular to a visual parking assist system with a continuously variable track and a control method thereof. The visual parking assist system comprises a back vision camera, a steering wheel corner sensor and a processing and display device, wherein the processing and display device comprises a CAN (controller area network) bus information receiving and dispatching module, a central processing unit, a video processing module, a storage module and a liquid crystal display; the steering wheel corner sensor is connected with a steering wheel, and is connected with the CAN bus information receiving and dispatching module through a CAN bus; the central processing unit is respectively connected with the CAN bus information receiving and dispatching module, the storage module and the video processing module; and the video processing module is respectively connected with the back vision camera and the liquid crystal display. The visual parking assist system has the advantages that: 1, the system structure is simplified, the cost of a hardware and the cost of a wiring harness are reduced, and the system reliability is improved; 2, the vehicle running track is predicated in a real-time manner with high accuracy; and 3, a driver can observe a vehicle parking condition directly and clearly so as to realize safety parking.

The invention discloses a linear constant-current and current-sharing LED drive circuit and a circuit board structure thereof, relating to a drive circuit of a vehicle LED illuminating device and configuration of elements of the drive circuit. The linear constant-current and current-sharing LED drive circuit comprises a reference voltage unit, a constant current feedback unit and a multi-channel sampling and current sharing unit, wherein the multi-channel sampling and current sharing unit is correspondingly connected to all channels of LED strings of the multi-channel LED light emitting module; all channels of current sampling feedback ends are connected in parallel to the feedback signal input end of the constant current feedback unit; and LED currents are automatically regulated according to an LED gear resistor arranged on an LED circuit board, one constant current feedback unit is used for controlling the currents of the multiple channels of LED strings, has multiple functions of constant current, current sharing, LED gear and PWM (Pulse Width Modulation) dimming, and can meet various practical demands in electronic illumination of automobile; and the complexity of design and production of the LED drive circuit is greatly lowered, and error probability is lowered. Any parameter of any element on the control circuit board is not needed to be changed in a production or maintenance process, high interchangeability of the circuit board can be realized, and the production efficiency is increased.

The invention relates to an automobile driving path identification system based on an automotive electronic identification, and a method thereof. The automotive driving path identification system comprises the automotive electronic identification, a road-side RFID reader / writer, and a background processing device. The automotive electronic identification is mounted on the front windshield of the automobile, and stores automobile identity information and driving path information. The road-side RFID reader / writer is used for writing the automobile driving path identification information into the automotive electronic identification and reading the automobile driving path identification information which is stored in the automotive electronic identification. The automobile driving path identification system can effectively settle an ambiguous path identification problem of the automobiles in a quick free flow driving state, and improves an identification accuracy for the ambiguous path. Furthermore the automobile driving path identification system and the method have functions of realizing management for items such as automobile driving path, fee payment in passing, interval speed measuring; improving operation efficiency and service quality of the road; and improving performance and effect in dynamic automobile monitoring.

The invention discloses a preparation method of a POSS (Polyhedral Oligomeric Silsesquioxane) modified polysiloxane rubber composite material. The preparation method is characterized in that the POSS containing single / double reactive functional groups is introduced into a polysiloxane molecular chain containing a plurality of reactive functional groups by virtue of grafting or blocking in a chemical copolymerization manner, and then a POSS modified polysiloxane oligomer with the POSS as a polysiloxane hanging chain and the POSS as a polysiloxane block chain, next, 0.1-100 parts of POSS modified polysiloxane oligomer is evenly dispersed in 100 parts of polysiloxane raw rubber by virtue of physical blending, and finally, 0-50 parts of white carbon black and 0.2-10 parts of a curing agent are added to the mixture for cross-linking and solidification and then the POSS modified polysiloxane rubber composite material is obtained. The POSS modified polysiloxane rubber composite material has excellent high and low temperature resistance, mechanical properties and dielectric property, and can be applied to the technical fields of automobiles, electronics, building materials as well as national defense and aerospace.

The invention discloses an open systems and the corresponding interfaces for automotive electronics (OSEK) network management-based controller area network (CAN) management method. The CAN management method is implemented under the coaction of an OSEK network conversion processing module and an application layer-network interface processing module. All electronic control unit (ECU) nodes of an automobile body are connected through a CAN bus. The OSEK network conversion module comprises a failure processing module, a dormancy and initialization processing module and a virtual network processing module. The process of converting the network statuses of the ECU nodes comprises the following steps of: (a) network initialization; (b) network resetting; and (c) conversion between different virtual network statuses of the ECU nodes. A virtual network concept is put forward, a virtual network is dynamically constructed according to the actual needs of each ECU node, and modules without communication requirements can continue to be dormant. The problem of high CAN bus load rate caused by a great number of ECU nodes is solved, network management is optimized, and bus load, electrical interference and bus failure risks are reduced.