WO2013064019A1 - 车用诊断接头 - Google Patents

车用诊断接头 Download PDF

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Publication number
WO2013064019A1
WO2013064019A1 PCT/CN2012/083148 CN2012083148W WO2013064019A1 WO 2013064019 A1 WO2013064019 A1 WO 2013064019A1 CN 2012083148 W CN2012083148 W CN 2012083148W WO 2013064019 A1 WO2013064019 A1 WO 2013064019A1
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WO
WIPO (PCT)
Prior art keywords
diagnostic
chip
diagnosis
vehicle
switch array
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Application number
PCT/CN2012/083148
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English (en)
French (fr)
Inventor
刘均
闫朝国
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深圳市元征科技股份有限公司
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Publication of WO2013064019A1 publication Critical patent/WO2013064019A1/zh

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/04—Monitoring the functioning of the control system
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/04—Monitoring the functioning of the control system
    • B60W2050/041—Built in Test Equipment [BITE]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2756/00—Output or target parameters relating to data
    • B60W2756/10—Involving external transmission of data to or from the vehicle

Definitions

  • the present invention relates to a diagnostic connector for a vehicle, and more particularly to a diagnostic connector for a vehicle that is compact and low in cost. Background technique
  • An object of the present invention is to provide a vehicle diagnostic connector capable of running a complete diagnostic function on a single chip, and providing support for miniaturization and cost reduction of an automobile diagnostic device.
  • the present invention provides a diagnostic connector for a vehicle, comprising: a diagnostic chip and an analog switch array chip electrically connected to the diagnostic chip, the diagnostic chip integrated with a processor chip and a Nor Flash chip, the diagnostic chip The diagnostic program is run, and the analog switch array chip is logically turned on according to the running result, thereby being electrically connected to the vehicle diagnostic interface, and the diagnostic function is completed through a corresponding diagnostic protocol.
  • the diagnostic chip is provided with a display driving interface.
  • the diagnostic chip is provided with a Bluetooth communication interface, a WIFI communication interface, a 3G communication interface, and a GPRS communication interface, and the communication interfaces are used for data communication with an external device.
  • the external device controls the monitoring mode and extracts monitoring data through the client software.
  • the Nor Flash chip is used to store diagnostic program configuration files, databases, and monitoring data files.
  • the processor chip is configured to run a diagnostic program, and the operating mode of the diagnostic program includes a real-time diagnostic mode and a status monitoring mode.
  • the analog switch array chip is electrically connected to the diagnostic chip through a CANBUS diagnostic bus.
  • the diagnostic connector for a vehicle uses a diagnostic chip to integrate a high-performance processor chip and a Nor Flash chip, and can perform a complete diagnostic function on a single chip; the analog switch array chip integrates a large number of relay circuits. And the data transmission circuit, which realizes the conversion of digital signals and analog signals at low cost, and the function of strobing the pins, and provides support for miniaturization and cost reduction of the automotive diagnostic device.
  • FIG. 1 is a schematic diagram showing the function realization of a diagnostic connector for a vehicle according to the present invention
  • FIG. 2 is a flow chart showing the execution of a program of an embodiment of the diagnostic socket for a vehicle of the present invention. detailed description
  • the present invention provides a diagnostic connector for a vehicle, comprising: a diagnostic chip and an analog switch array chip electrically connected to the diagnostic chip through a CANBUS diagnostic bus, the diagnostic chip integrating a high performance processor chip and High-speed Nor Flash chip, processing
  • the internal Flash space of the chip stores and runs a diagnostic program based on the corresponding diagnostic protocol.
  • the Nor Flash chip stores the configuration file and database of the diagnostic program, and can allocate part of the space for storing the vehicle status monitoring data.
  • the diagnostic program controls its operation mode by external control signals and Nor Flash configuration files to realize different program monitoring functions.
  • the analog switch array chip integrates a large number of switch circuits and CANBUS signal transceivers, power management circuits, and realizes diagnostic signals through internal switch arrays.
  • the signal connection and transmission with the diagnostic interface of the SAE J1962 diagnostic interface, and the logic control of the physical layer of the diagnostic signal are realized.
  • the CANBUS communication is controlled by the CANBUS transceiver.
  • the use of the analog switch array chip saves a large number of relay switching devices, greatly reducing Product volume reduces product cost.
  • the diagnostic chip sends a diagnostic command, the processor chip runs a diagnostic program corresponding to the diagnostic command, and feeds back the operation result to the diagnostic chip, and the diagnostic chip controls the strobe and signal of the completed switch array chip completion pin according to the feedback result.
  • the waveform is modulated to complete communication with the vehicle control system.
  • the diagnostic chip is provided with a display driving interface, and the handheld diagnostic device is realized by an external display device.
  • the display device displays a control interface, and the control interface controls the program flow and selects a system and function to be diagnosed, and selects a system and then diagnoses the chip.
  • the corresponding diagnostic pin is connected through the analog switch array chip, and each diagnostic information of the ECU (Electronic Control Unit) is read through the diagnostic bus and displayed on the user interface.
  • the diagnostic chip is provided with one or more of Bluetooth, WIFI, 3G, and GPRS communication interfaces.
  • the diagnostic chip is connected to the communication interfaces through a UART interface, and the handheld device is connected to the diagnostic chip through the communication interfaces, thereby implementing a separate type.
  • the handheld diagnostic device after the handheld device establishes a connection with the diagnostic chip, controls the operation flow of the diagnostic program in the diagnostic chip through the control command, selects the corresponding system and function, connects the corresponding diagnostic pin through the analog switch array chip, and reads the ECU through the diagnostic bus. Each diagnostic message is displayed in the user interface.
  • the diagnostic connector for vehicle of the invention can also serve as a professional diagnostic device only as a diagnostic interface. After the power is turned on, the wireless interface is opened, and after the professional diagnostic device is connected with the diagnostic interface, the professional diagnostic device selects the system, functions and organizes the communication. After the command, follow the communication The interface requires sending data to the diagnostic interface.
  • the diagnostic interface controls the analog switch array chip to connect to the corresponding diagnostic pin according to the communication data requirement, communicates with the ECU, and obtains data and returns to the professional diagnostic device.
  • the device parses and displays the diagnostic results.
  • the diagnostic connector for a vehicle provided by the present invention passes the diagnostic chip.
  • the UART interface is connected to communication interfaces such as WIFI and Bluetooth to realize connection with diagnostic devices such as handheld or professional, and to display diagnostic data and control the diagnostic process.
  • communication interfaces such as WIFI and Bluetooth
  • the vehicle diagnostic connector can also be used as an automobile condition monitoring device.
  • the state monitoring device operates independently, monitors and records the vehicle state in real time according to the set requirements, and stores the data record files in the Nor Flash chip. After the data extraction device establishes a connection with the state monitoring device, the monitored data can be sent to the data extraction device for analysis and display.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

本发明提供了一种车用诊断接头，其包括：诊断芯片及电性连接于该诊断芯片的模拟开关阵列芯片，该诊断芯片集成有处理器芯片及Nor Flash芯片，该诊断芯片运行诊断程序，并根据运行结果控制该模拟开关阵列芯片逻辑导通，从而电性连接于汽车诊断接口，通过相应诊断协议完成诊断功能。该车用诊断接头能够单芯片运行完整的诊断功能；其中的模拟开关阵列芯片集成了大量继电器电路、以及数据传输电路，能低成本实现数字信号和模拟信号的转换，诊断引脚的选通等功能，为汽车诊断装置的小型化及低成本化提供了支持。

Description

车用诊断接头
技术领域
本发明涉及一种车用诊断接头，尤其涉及一种小型化及低成本化 的车用诊断接头。 背景技术
随着中国汽车产业的高速发展， 家庭用车的不断普及，汽车后生 活的巨大的市场潜力已经引起各方的广泛关注。经过多年的市场发展 与普及， 汽车故障诊断系统得到有效发展。
但由于传统市场因素，多系统多功能的专业诊断设备具有傻大笨 粗、价格昂贵的特点， 客户群体为传统汽车维修厂， 而面向个人客户 的 DIY设备以其小巧， 价格低， 易操作以及基于 OBDII、 EOBD系统 诊断的通用性等优势，逐渐走入了家庭用车的个人用户市场。但同时， 该传统的 DIY设备由于其基于 OBDII、 EOBD, 只能诊断和排放相关 的动力系统， 功能筒单， 无法对车辆做出较全面的诊断。 发明内容
本发明的目的在于提供一种车用诊断接头，其能够单芯片运行完 整的诊断功能， 为汽车诊断装置的小型化及低成本化提供支持。
为实现上述目的， 本发明提供一种车用诊断接头， 其包括： 诊断 芯片及电性连接于该诊断芯片的模拟开关阵列芯片， 该诊断芯片集成 有处理器芯片及 Nor Flash芯片， 该诊断芯片运行诊断程序， 并根据 运行结果控制该模拟开关阵列芯片逻辑导通， 从而电性连接于汽车诊 断接口， 通过相应诊断协议完成诊断功能。
所述诊断芯片设有显示屏驱动接口。
所述诊断芯片设有蓝牙通信接口、 WIFI通信接口、 3G通信接口、 GPRS通信接口 , 该些通信接口用于与外界设备进行数据通信。
所述外界设备通过客户端软件控制监控模式、 提取监控数据。 所述 Nor Flash芯片用于存储诊断程序配置文件、 数据库及监控数 据文件。
所述处理器芯片用于运行诊断程序， 该诊断程序的运行模式包括 实时诊断模式及状态监控模式。
所述模拟开关阵列芯片通过 CANBUS诊断总线电性连接于该诊 断芯片。
本发明的有益效果： 本发明所提供的车用诊断接头，其采用诊断 芯片集成高性能处理器芯片及 Nor Flash芯片，能够单芯片运行完整的 诊断功能；模拟开关阵列芯片则集成了大量继电器电路、以及数据传 输电路，低成本实现了数字信号和模拟信号的转换，诊断引脚的选通 等功能， 为汽车诊断装置的小型化及低成本化提供了支持。
为了能更进一步了解本发明的特征以及技术内容， 请参阅以下有 关本发明的详细说明与附图， 然而附图仅提供参考与说明用， 并非用 来对本发明加以限制。 附图说明
下面结合附图， 通过对本发明的具体实施方式详细描述， 将使本 发明的技术方案及其它有益效果显而易见。
附图中，
图 1为本发明车用诊断接头的功能实现原理图；
图 2为本发明车用诊断接头一实施例的程序执行流程图。 具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本 发明的优选实施例及其附图进行详细描述。
请参阅图 1及图 2 ,本发明提供一种车用诊断接头，其包括诊断芯 片及通过 CANBUS诊断总线电性连接于该诊断芯片的模拟开关阵列 芯片，该诊断芯片集成高性能处理器芯片及高速 Nor Flash芯片，处理 器芯片内部 Flash空间存储并运行基于相应诊断协议的诊断程序， Nor Flash芯片存储诊断程序的配置文件及数据库， 并可分配部分空间用 于存储汽车状态监控数据。诊断程序由外部控制信号及 Nor Flash配置 文件控制其运行方式， 以实现不同的程序监控功能，该模拟开关阵列 芯片集成大量开关电路及 CANBUS信号收发器， 电源管理电路， 通 过内部开关阵列实现诊断信号与 SAE J1962诊断接口诊断引脚的信号 连接、 传递， 并实现诊断信号物理层的逻辑控制， 通过 CANBUS收 发器控制 CANBUS通信， 该模拟开关阵列芯片的使用节省了大量继 电器开关器件， 极大减小产品体积， 降低了产品成本。
诊断芯片发送诊断指令，处理器芯片运行与该诊断指令相对应的 诊断程序，并将运行结果反馈给该诊断芯片，该诊断芯片根据该反馈 结果控制模拟开关阵列芯片完成引脚的选通、信号的波形调制，从而 完成与汽车控制系统的通信。
所述诊断芯片设有显示屏驱动接口， 通过外接显示屏设备实现手 持诊断设备， 该显示屏设备显示控制界面， 由控制界面控制程序流程 并选择需诊断的系统及功能， 选择好系统后诊断芯片通过模拟开关阵 列芯片连接相应诊断引脚，通过诊断总线读取 ECU ( Electronic Control Unit ) 的各诊断信息并在用户界面显示。
所述诊断芯片设有蓝牙、 WIFI、 3G、 GPRS通信接口中的一个或 多个， 该诊断芯片通过 UART接口连接该些通信接口， 手持设备通过 该些通信接口连接于诊断芯片， 从而实现分离式手持诊断设备， 手持 设备与该诊断芯片建立连接后， 通过控制命令控制诊断芯片中诊断程 序的运行流程， 选择相应系统及功能， 通过模拟开关阵列芯片连接相 应诊断引脚， 通过诊断总线读取 ECU的各诊断信息并在用户界面显 示。
本发明车用诊断接头，还可以仅作为诊断接口为专业诊断设备提 供服务，上电后打开无线接口，专业诊断设备与诊断接口建立连接后， 该专业诊断设备通过选择系统，功能并组织好通信命令后，按照通信 接口要求发送数据至该诊断接口，该诊断接口按照通信数据要求， 由 诊断芯片控制模拟开关阵列芯片连通相应的诊断引脚，与 ECU通信并 获取数据后返回至该专业诊断设备，由该专业诊断设备解析并显示诊 断结果。
综上所述，可见本发明所提供的车用诊断接头，其诊断芯片通过
UART接口连接 WIFI、蓝牙等通信接口， 实现与手持或专业等诊断设 备的连接， 实现诊断数据的显示以及诊断流程的控制。
本发明车用诊断接头，还可以作为汽车状态监控设备，该状态监 控设备独立运行， 按照设定的要求， 实时监控并记录车辆状态， 并将 该些数据记录文件存储于 Nor Flash芯片中，在数据提取设备与该状态 监控设备建立连接后，可以将监控的数据发送至数据提取设备，用于 分析显示。
以上所述， 对于本领域的普通技术人员来说， 可以根据本发明的 技术方案和技术构思作出其他各种相应的改变和变形， 而所有这些改 变和变形都应属于本发明权利要求的保护范围。

Claims

权利要求
1. 一种车用诊断接头， 其特征在于， 包括： 诊断芯片及电性连接 于该诊断芯片的模拟开关阵列芯片， 该诊断芯片集成有处理器芯片及 Nor Flash芯片， 该诊断芯片运行诊断程序， 并根据运行结果控制该模 拟开关阵列芯片逻辑导通， 从而电性连接于汽车诊断接口， 通过相应 诊断协议完成诊断功能。
2. 如权利要求 1所述的车用诊断接头， 其特征在于， 所述诊断芯 片设有显示屏驱动接口。
3. 如权利要求 1所述的车用诊断接头， 其特征在于， 所述诊断芯 片设有蓝牙通信接口、 WIFI通信接口、 3G通信接口、 GPRS通信接 口， 该些通信接口用于与外界设备进行数据通信。
4. 如权利要求 3所述的车用诊断接头， 其特征在于， 所述外界设 备通过客户端软件控制监控模式、 提取监控数据。
5. 如权利要求 1 所述的车用诊断接头， 其特征在于， 所述 Nor Flash芯片用于存储诊断程序配置文件、 数据库及监控数据文件。
6. 如权利要求 1所述的车用诊断接头， 其特征在于， 所述处理器 芯片用于运行诊断程序， 该诊断程序的运行模式包括实时诊断模式及 状态监控模式。
7. 如权利要求 1所述的车用诊断接头， 其特征在于， 所述模拟开 关阵列芯片通过 CANBUS诊断总线电性连接于该诊断芯片。
PCT/CN2012/083148 2011-10-31 2012-10-18 车用诊断接头 WO2013064019A1 (zh)

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CN102393734A (zh) * 2011-10-31 2012-03-28 深圳市元征软件开发有限公司 车用读码卡
CN102436256A (zh) * 2011-10-31 2012-05-02 深圳市元征软件开发有限公司 车用诊断接头
CN103118071A (zh) * 2013-01-06 2013-05-22 深圳市元征软件开发有限公司 采用ZigBee无线网络的智能车队的车辆维护方法
CN103398855A (zh) * 2013-07-26 2013-11-20 浙江吉利汽车研究院有限公司 一种汽车诊断系统及方法
CN105045147B (zh) * 2015-07-10 2018-05-29 深圳市元征科技股份有限公司 开关阵列电路和汽车诊断系统的通讯装置
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CN112241155A (zh) * 2019-07-16 2021-01-19 深圳市道通科技股份有限公司 接口转换器及汽车诊断系统
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