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Overview:
With the development of the automobile industry, modern electronic control technology has penetrated into all parts of the automobile. “Electrical Control Unit”—Electronic Control Unit (ECU) is being widely used. Various types of ECUs interact with each other in the vehicle electrical control system. The connected CAN bus network can realize automatic signal collection and data sharing of many systems such as engine, gearbox, suspension, chassis, ABS & EBD, and electronic audio and video. The automobile ECU remote monitoring system uses new technologies and new methods to implement online monitoring of vehicle operating conditions, master vehicle ECU operating data, and collect and analyze data on vehicle operating conditions in advance to ensure that the vehicle is repaired before failure occurs. It solves the concerns and concerns of related automobile manufacturers, dealer service providers, passenger and freight companies, and car owners.
Application topology diagram:
The system uses the combination of automotive intelligent electronic technology with wireless network technology and computer technology to collect, store and analyze the operating parameters of key components and mechanisms such as the engine, gearbox, and chassis during the driving process. When the technicians or on-site technicians cannot make a diagnosis, they will be diagnosed in time by the fault expert diagnosis system, maintenance technicians or other advanced fault diagnosis technology of the monitoring center by establishing a connection with the vehicle monitoring center, and the diagnosis results will be given.
System composition:
On-board unit part, wireless network communication part, vehicle condition monitoring center and factory maintenance service center; both the vehicle monitoring center and the factory maintenance service center have their own databases; the database stores various types of faults, dynamically refreshed working conditions and vehicles Data related to various performance parameters.
On-board unit part:
Mainly include vehicle main control unit, intelligent acquisition terminal, GPRS module, GPS receiving module and interface conversion module. Its function is to collect vehicle operating parameter information, status information and fault information, etc., and realize data transmission preparation.
The wireless network communication part is mainly composed of GPRS/EDGE wireless communication links, etc. Its function is to realize the two-way communication between the on-board unit, the intelligent acquisition terminal and the vehicle monitoring system, and realize the relationship between the vehicle monitoring center and the maintenance service center of the manufacturer. Two-way communication between.
Vehicle condition monitoring center-including expert system knowledge base, inference engine, monitoring center database, management software and communication server equipped with communication software. Its role is to realize functions such as vehicle monitoring, fault diagnosis services, and database maintenance.
Manufacturing plant (4S shop) maintenance service center-its database configuration and fault diagnosis function is more powerful than the vehicle monitoring center. It is interconnected with the vehicle condition monitoring center through GPRS/EDGE/Internet to directly guide vehicle maintenance.
System advantages:
1) This system is an open remote fault diagnosis architecture with strong vitality and broad application prospects. Interconnect with fault analysis and diagnosis centers established by large maintenance companies, scientific research institutes or domestic and foreign automobile manufacturers focusing on this technical field, and establish a collaborative relationship with relevant experts to jointly provide remote fault diagnosis services for the system.
2) The remote fault diagnosis technology overcomes regional barriers. After the user sends a fault diagnosis request, all technical resources of the relevant server can be mobilized in a short time to realize vehicle diagnosis and maintenance guidance.
3) Form a rich diagnosis database and diagnosis knowledge base, improve diagnosis intelligence, and conduct consultations on faults through multi-means and multi-expert collaboration to improve the accuracy and reliability of fault diagnosis.
4) The system can also provide remote teaching, technical training and other functions, which are of great help to improve the quality of maintenance personnel, change the corporate image, and enhance the competitiveness of the company.
typical application:
Automobile manufacturers, dealers & after-sales service providers (4S shops): Using the automobile ECU remote monitoring system, a large number of long-term and effective vehicle operating parameter databases can be established, combined with the expert database & knowledge base system, to evaluate vehicle conditions, and discover designs, Process defects, timely recall, timely improvement, while establishing a good brand reputation, improving user experience, and increasing user loyalty, it also provides extremely valuable data and experience for the design and development of improved & upgraded models and new models.
Long- and short-distance passenger transport companies, various logistics and transportation companies: The use of car ECU wireless remote monitoring systems can provide them with more comprehensive and timely car safety driving guarantees, greatly reducing losses caused by vehicle failures and even accidents, and at the same time, The maintenance of operating vehicles can also establish a more scientific system to extend the service life of vehicle parts and reduce unnecessary maintenance expenses.
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