Self-balancing control system for interface of vehicle-mounted lamp based on LIN bus

Abstract

The invention discloses a self-balancing control system for an interface of a vehicle-mounted lamp based on a LIN bus, and belongs to the technical field of automobile electronics. According to the self-balancing control system for the interface of the vehicle-mounted lamp based on the LIN bus, current data to be transmitted can be compared based on historical data, and after a difference part isextracted and fused with identification information of the historical data, the current data to be transmitted is sent to each slave node from a master node through the LIN bus, so that the fast transmission of small data size is achieved; the current data to be transmitted is recovered through data of the difference part and pre-stored historical data after reception, so that the self-balancing of the data is achieved; the data is converted into a control instruction to be sent to a corresponding vehicle-mounted lamp after the data is processed by the slave node; the system has low delay performance and high safety which are specifically embodied in high response speed of the control instruction, and meanwhile, after the LIN bus fails, the LIN bus can be actively disconnected in time, theinsulation protection is carried out on the interface, and the failure expansion or secondary fault occurrence is prevented.

Description

technical field [0001] The invention relates to the technical field of automobile electronics, and more specifically, relates to a self-balancing control system of a vehicle lamp interface based on a LIN bus. Background technique [0002] Automotive electronics is the general term for car body electronic control devices and vehicle electronic control devices. Automobile electrification is considered to be a revolution in the development of automobile technology and the most important technical measure to improve automobile performance. In recent years, with the rapid development of information technology and the continuous improvement of the automobile manufacturing industry, the proportion of electronic equipment in the total cost of automobiles has also increased. According to statistics, from 1970 to 2014, the global automotive electronic equipment The cost ratio has risen from 2% to over 50%. In the past 10 years, 70% of the innovations in the automotive industry have ...

AI Technical Summary

Problems solved by technology

On the one hand, car lights with poor light distribution effects cannot meet the lighting requirements of complex road conditions such as sharp bends and steep slopes; Leading to the occurrence of traffic accidents, especially the development of sensor technology, more and more intelligent automatic control functions of vehicle lamps have been developed, so it is particularly important for the drive control of vehicle lamps with low delay and high stability, which is reflected in the automobile In the processing and transmission of a large amount of data in the control system, the traditional LIN bus has great limitations in the data transmission and processing of the vehicle lamp control system due to its own characteristics, and it cannot be obtained after the LIN bus fails at the node. Timely processing and restoration of data communication, and there is a large risk of diffusion and secondary failure at the faulty LIN node

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