The Research On Communication Strategies Of Automobile Electrical Parking Brake

Automotive electronic parking brake(EPB) system is just developed in recent years emerging automobile electronic control brake technology in after the ABS and ESP automobile brake control system. Application of automobile electronic parking brake system cannot do without communication between the CAN network and the whole vehicle network. In this paper, the communication control strategy of automotive electronic parking brake system is studied in this paper. According to previous research and data, combined with the b7 l MAGOTAN models of real vehicle experiments and simulation experiments in the simulation experiment platform on communication strategies between the electronic parking brake system were analyzed.In this paper study a lot of automotive network communications protocol standards on the basis of automobile electronic parking brake communication, calibration and diagnosis of three kinds of communication strategies are analyzed and studied. In vehicle can network transmission protocols, for data transmission between the automobile electronic parking brake system and the whole vehicle network analysis, get the meaning of electronic parking brake system communication message signal, to set up an electronic parking brake system flow chart of the communication, and the canoe software communication simulation analysis, the transmission efficiency of the feasibility of the design is analyzed. On the basis of CCP calibration protocol and calibration system for in-depth study of, vehicle network application professional tool vehicle Spy3 and calibration tools calibration system of electronic parking brake system system to CCP communication protocol, through asap2 standard data description file to transfer data signal, the CCP driver, driver code research and compilation, formed a set of complete calibration scheme for calibrating the automobile electronic parking brake system, which is used to verify the accuracy of the calibration protocol. Through the study on the diagnostic protocol, combined with electronic parking brake system of automobile fault diagnosis test, design and analysis of EPB diagnostic protocol of communication strategy, to detect the condition of the communication signal of electronic parking brake system. Simulation of EPB signal communication environment using CANoe simulation software, the simulation analysis on reliability design of diagnostic protocol.For communication to support electronic parking brake system research and Simulation of vehicle in actual electronic parking brake in the process of data signal transmission, build the simulation experimental platform, through the can network real-time monitoring of electronic parking brake system and vehicle network communication between information, experiment data recording and analysis, combined with the communication protocol, and ultimately achieve the feasibility analysis of the electronic parking brake system communication strategy research and communication strategy.