本文選題：PEPS系統(tǒng) + 基于模型設(shè)計(jì)��； 參考：《吉林大學(xué)》2017年碩士論文

【摘要】：汽車作為日常生活中一種不可替代的交通工具,人們對(duì)它設(shè)計(jì)了非常嚴(yán)格的舒適性以及安全性要求,對(duì)于PEPS(Passive Entry and Passive Start)系統(tǒng),其滿足了這些需求,已經(jīng)逐漸成為汽車應(yīng)用中主流的方案選擇。車主只需要隨身攜帶智能鑰匙,不需要對(duì)其進(jìn)行任何的操作,就可以實(shí)現(xiàn)車門的開閉鎖以及啟動(dòng)發(fā)動(dòng)機(jī)的功能。PEPS系統(tǒng)舒適以及安全的優(yōu)勢(shì),使其具有很大的推廣空間。根據(jù)PEPS系統(tǒng)復(fù)雜功能和安全技術(shù)要求,本論文采用基于模型的系統(tǒng)開發(fā)方法。這種基于模型設(shè)計(jì)的開發(fā)模式在汽車電子行業(yè)領(lǐng)域已經(jīng)逐漸使用,圖形化的設(shè)計(jì)理念,便于交流和維護(hù),并且能夠自動(dòng)生成嵌入式代碼,具有極大的高效性和經(jīng)濟(jì)性,擁有廣闊的應(yīng)用前景。本論文圍繞系統(tǒng)結(jié)構(gòu)功能,基于模型設(shè)計(jì)的流程,系統(tǒng)總線仿真,測(cè)試驗(yàn)證等方面,進(jìn)行了如下研究:(1)對(duì)PEPS系統(tǒng)進(jìn)行分析和研究,詳盡描述了PEPS系統(tǒng)的結(jié)構(gòu)和功能,主要分析了無鑰匙進(jìn)入、無鑰匙啟動(dòng)、電子轉(zhuǎn)向柱鎖控制以及報(bào)警與提示的功能,為基于模型設(shè)計(jì)方法的實(shí)現(xiàn)提供控制策略基礎(chǔ)。(2)介紹基于模型設(shè)計(jì)方法的基本概念以及流程,編寫系統(tǒng)需求文檔,使用Simulink/Stateflow工具對(duì)PEPS系統(tǒng)的控制器進(jìn)行層次化建模,通過圖形化的語言設(shè)計(jì)和實(shí)現(xiàn)系統(tǒng)的功能。并且在開發(fā)過程中,完成模型檢查,模型驗(yàn)證,定點(diǎn)化設(shè)計(jì),軟件在環(huán)測(cè)試等流程,通過代碼優(yōu)化配置,使用Embedded Coder工具自動(dòng)生成嵌入式代碼以及相關(guān)的代碼報(bào)告,實(shí)現(xiàn)模型與代碼的一致性檢查。(3)設(shè)計(jì)和研究PEPS系統(tǒng)CAN總線的工作過程,通過CANoe環(huán)境的總線測(cè)試工具,搭建系統(tǒng)的整體網(wǎng)絡(luò)仿真環(huán)境,實(shí)現(xiàn)系統(tǒng)總線的監(jiān)測(cè)以及分析。設(shè)計(jì)CAN總線數(shù)據(jù)庫(kù),建立系統(tǒng)交互面板,搭建系統(tǒng)仿真拓?fù)浣Y(jié)構(gòu),編寫節(jié)點(diǎn)CAPL語言仿真程序,以圖形化的形式反映信號(hào)通信情況,觀察及分析仿真結(jié)果,實(shí)現(xiàn)系統(tǒng)的總線網(wǎng)絡(luò)仿真。(4)為驗(yàn)證自動(dòng)生成的上層算法代碼準(zhǔn)確性,將其與底層驅(qū)動(dòng)代碼進(jìn)行整合,編譯下載到MC9S12XS128的開發(fā)板中,并使開發(fā)板與總線測(cè)試工具進(jìn)行CAN總線的通訊,測(cè)試代碼的正確性和可靠性,實(shí)現(xiàn)系統(tǒng)功能,確保代碼與功能的一致性,滿足設(shè)計(jì)要求。
[Abstract]:As an irreplaceable vehicle in daily life, the automobile has been designed for the strict comfort and safety requirements. For the PEPS(Passive Entry and Passive Start) system, it meets these requirements. It has gradually become the mainstream choice in automobile application. The owner only needs to carry the intelligent key with him and does not need any operation to realize the opening and closing of the door and the function of starting the engine. The advantages of comfort and safety of the PEPS system make it have great promotion space. According to the complex function and security technology requirement of PEPS system, this paper adopts the system development method based on model. This development model based on model design has been gradually used in the field of automotive electronics industry. The graphic design concept is convenient for communication and maintenance, and can generate embedded code automatically, which is highly efficient and economical. It has a broad application prospect. This paper focuses on the system structure and function, the flow based on the model design, system bus simulation, test verification and so on. The following research is carried out: 1) the PEPS system is analyzed and studied, and the structure and function of the PEPS system are described in detail. This paper mainly analyzes the functions of keyless entry, keyless startup, electronic steering column lock control, alarm and prompt, and provides the control strategy basis for the realization of model-based design method. (2) the basic concept and flow chart of model-based design method are introduced. The system requirement document is written, and the controller of PEPS system is modeled hierarchically by using Simulink/Stateflow tool. The system functions are designed and realized by graphical language. And in the development process, complete the process of model checking, model verification, fixed-point design, software testing in the loop, through the optimization of code configuration, use Embedded Coder tools to automatically generate embedded code and related code reports. The working process of CAN bus in PEPS system is designed and studied. Through the bus test tool of CANoe environment, the whole network simulation environment of the system is built, and the monitoring and analysis of the system bus is realized. The CAN bus database is designed, the system interactive panel is set up, the topology structure of the system simulation is set up, the simulation program of node CAPL language is written, the signal communication is reflected graphically, and the simulation results are observed and analyzed. In order to verify the accuracy of the automatic generation of the upper layer algorithm code, the bus network simulation of the system integrates it with the underlying driver code, compiles and downloads it to the MC9S12XS128 development board, and makes the development board communicate with the bus test tool on the CAN bus. Test the correctness and reliability of the code, realize the system function, ensure the consistency of the code and function, meet the design requirements.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：U463.6;TP311.52

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