CN107097650B - 电动车辆供电设备诊断方法和总成 - Google Patents
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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and vehicles
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- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
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- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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Abstract
示例性报告方法包括以下步骤:从电动车辆供电设备接收诊断数据,以及然后通过电动车辆的接口报告诊断数据。示例性电动车辆总成包括电动车辆的控制器。控制器配置为从电动车辆供电设备接收诊断数据。示例性总成还包括配置为报告诊断数据的电动车辆的接口。
Description
技术领域
本发明总体上涉及报告诊断数据,并且更具体地,涉及通过电动车辆报告来自电动车辆供电设备(EVSE)的诊断数据。因为诊断数据通过电动车辆报告,所以不需要专用工具来从EVSE检索诊断数据。
背景技术
电动车辆不同于常规机动车辆,原因在于使用由牵引电池供电的一个或多个电机来选择性地驱动电动车辆。电机而非内燃发动机或者除了内燃发动机之外可以驱动电动车辆。示例电动车辆包括混合动力电动车辆(HEV)、插电式混合动力电动车辆(PHEV)、燃料电池车辆(FCV)和电池电动车辆(BEV)。
电动车辆供电设备(EVSE)可以将电动车辆连接到电网电源。电线组是EVSE的示例类型。电力从电网电源通过电线组移动到电动车辆。电力用于为电池充电。从电线组和其他类型的EVSE检索诊断数据可能需要专用工具。此外,一些EVSE必须被部分地拆卸以检索诊断数据。
发明内容
根据本发明的示例性方面的诊断报告方法尤其包括从电动车辆供电设备接收诊断数据,以及通过电动车辆的接口报告诊断数据。
在前述方法的另一非限制性实施例中,方法还包含使用控制器局域网(CAN)总线协议报告诊断数据。
在任一前述方法的另一非限制性实施例中,接口是车载诊断(OBD)端口。
在任一前述方法的另一非限制性实施例中,诊断数据作为信号从电动车辆供电设备接收,并且方法还包含在报告之前将该信号转换为诊断代码。
在任一前述方法的另一非限制性实施例中,信号是脉宽调制信号。
在任一前述方法的另一非限制性实施例中,方法还包含使用电动车辆的控制器转换信号。
在任一前述方法的另一非限制性实施例中,控制器是与电动车辆的电池牵引***相连接的电池充电器控制模块。
在任一前述方法的另一非限制性实施例中,方法还包含从电动车辆供电设备接收交流(AC)电,并使用控制器将交流电转换为直流(DC)电。
在任一前述方法的另一非限制性实施例中,从电动车辆供电设备的引导线路(pilot line)接收诊断数据。
在任一前述方法的另一非限制性实施例中,方法还包含使用通过电动车辆供电设备从外部电源发送到电动车辆的电力对电动车辆的牵引电池充电。
在任一前述方法的另一非限制性实施例中,电动车辆供电设备是电线组。
根据本发明的又一示例性方面的诊断方法尤其包含将诊断数据从电动车辆供电设备发送到电动车辆。
在前述方法的另一非限制性实施例中,方法还包含在电动车辆供电设备上执行自测试以收集电动车辆供电设备诊断数据。
在任一前述方法的另一非限制性实施例中,电动车辆供电设备在自测试和发送期间连接到外部电源和电动车辆。
在任一前述方法的另一非限制性实施例中,方法还包含使用电动车辆供电设备的引导线路将诊断数据发送到电动车辆。
根据本发明的又一示例性方面的电动车辆总成尤其包含电动车辆的控制器。控制器配置为从电动车辆供电设备接收诊断数据。电动车辆的接口配置为报告诊断数据。
在前述总成的另一非限制性实施例中,接口是车载诊断(OBD)端口,该端口配置为使用CAN协议向控制器局域网(CAN)工具报告诊断数据。
在任一前述总成中的另一非限制性实施例中,电动车辆包含配置为使用通过电动车辆供电设备从外部电源传输到车辆的电力充电的牵引电池。
在任一前述总成的另一非限制性实施例中,控制器是与电动车辆的电池牵引***相连接的控制模块。
在任一前述总成的另一非限制性实施例中,诊断数据从电动车辆供电设备的引导线路接收。
在任一前述总成的另一非限制性实施例中,诊断数据作为比特流信号被接收。
附图说明
根据具体实施方式,所公开的示例的各种特征和优点对于本领域技术人员将变得显而易见。伴随具体实施方式的附图可以简要描述如下:
图1示出了将电动车辆电连接到电网电源的示例性电动车辆供电设备(EVSE)的侧视图;
图2示出了图1的EVSE和电动车辆的高度示意图;
图3示出了从图1和图2的EVSE中检索诊断数据的示例性方法。
具体实施方式
本发明涉及通过电动车辆的接口报告电动车辆供电设备(EVSE)诊断数据,例如电线组(cordset)诊断数据。在一些示例中,电动车辆的CAN总线用于报告EVSE诊断代码。
电线组诊断数据可以例如通过电动车辆的OBD端口报告给CAN工具。由于电线组诊断数据通过电动车辆报告,所以可以检索电线组诊断数据,而不需要专用工具与电线组相连接,并且也不需要对电线组进行任何拆卸。
参照图1,示例性电动车辆10包括电池14、电机18、车轮22、控制器模块26和车载诊断(OBD)端口28。
在该示例中,电机18可以从电池14接收电力。电机18将电力转换为扭矩以驱动车轮22。示例性电池14是相对高电压的牵引电池。
示例性车辆是全电动车辆。在其他示例中,电动车辆10是混合动力电动车辆,其使用由内燃发动机而非电机提供的扭矩或者由除了电机之外内燃发动机提供的扭矩来选择性地驱动车轮。
OBD端口28是电动车辆10的接口。其他接口可以包括无线接口。电动车辆10的接口允许电动车辆10和不同于电动车辆的另一装置之间的通信。
为了对电池14充电,电线组30将电动车辆10电连接到电动车辆10外部的外部电源,例如电网电源34。当电线组30连接到电动车辆10以及电网电源34时,电池14可以从电网电源34接收电力。电力通过电线组30从电网电源34流到电池14。电线组30可以包含用于连接到电网电源34的插头36以及用于连接到电动车辆10的另一个插头36。
电线组30是便携式的EVSE类型。EVSE的其它示例可以包括固定的家用或商用充电站。EVSE与电动车辆10分离。
现在参照图2,示例性电线组30还包括壳体52内的处理器44和存储器部分48。当电线组30电连接到通向电动车辆10的电网电源34时,引导线路56和电力线60从壳体52延伸到插头38。引导线路56可以将数据传送到电动车辆10的控制器模块26,并且在一些示例中可以被认为是通信线路。电力线60可以将电力从电线组30传递到电动车辆10。
示例电线组30可以生成诊断数据。诊断数据可以包括内部地存储在电线组30的处理器44或存储器部分48内的诊断故障代码(DTC)。
诊断数据,特别是DTC,可以揭示与电线组30的操作相关的问题。示例DTC可以对应于例如过电流故障、接地故障中断、超过阈值的内部温度等。本领域的技术人员和本发明的益处将理解由DTC和其他类型的电线组诊断数据揭示的这些和其他类型的信息。
电线组30可以根据需要存储尽可能多的DTC。在一些示例中,电线组30可以存储多达十个DTC。在其他示例中,电线组30可以存储多达50个DTC。
在该示例中,可以通过电动车辆10的OBD端口28报告来自电线组30的诊断数据。技术人员可以利用CAN工具40接合OBD端口28,以从电线组30检索诊断数据。CAN工具40包括与OBD端口28的对应的针型连接器(pin type connector)接合的针型连接器。其他类型的连接是可能的,例如CAN工具40和OBD端口28之间的无线连接。图1描绘了CAN工具40和OBD端口28之间的无线连接。图2示意性地描绘了CAN工具40和OBD端口28之间的针连接或有线连接。
技术人员将可以利用CAN工具40,因为CAN工具通常用于检索电动车辆诊断数据,诸如由电动车辆10产生的DTC是容易地可用的。CAN工具40通常连接到OBD端口28,以诊断与OBD兼容的电动车辆和OBD兼容的常规车辆的问题。
示例CAN工具40可以支持CAN协议和OBD协议。示例CAN工具40可以检索通用的或特定于电动车辆10、电线组30或两者的制造商的DTC。
在该示例中,与电线组30相关联的诊断数据沿着引导线路56传送到电动车辆10。沿着引导线路56传送的信号可以是脉宽调制信号。控制器模块26从电线组30接收比特流,并且可以将信号转换为控制器局域网(CAN)总线协议。可以要求转换,因为示例电线组30可以不是电动车辆10的CAN总线上的模块。来自电线组30的所转换的诊断数据然后可以使用CAN总线协议通过OBD端口28报告给CAN工具40。所转换的诊断数据沿CAN通信线64传送。
控制器模块26是电动车辆10的车辆控制器模块或充电器。控制器模块26可以被称为电池充电器控制模块。控制器模块26与电池牵引***相连接。在另一示例中,配置用于DC充电的车辆10和控制器模块是DC网关模块(DCGM)。
控制器模块26包括处理器66和存储器部分70。处理器66可以被编程为执行存储在存储器部分70中的程序。该程序可以作为软件代码存储在存储器部分70中。存储在存储器部分70中的程序可以包括一个或多个附加的或单独的程序,每个程序包括可执行指令的有序列表,用于实现与例如将从电线组30的引导线路56接收的比特流数据转换成CAN总线协议相关联的逻辑功能。
控制器模块26还包括AC-DC转换器74,AC-DC转换器74将从电力线60接收的交流电转换为用于对电池14再充电的直流电。在一些示例中,电线组30用于快速充电电动车辆10。在快速充电中,电线组30可以连接到DC电网电源,使得不需要利用转换器74来转换交流电。
现在参照图3并继续参照图2,示例性电线组报告方法包括将CAN工具40与电动车辆10的OBD端口28***或接合的步骤100。电线组30***壁插座以接合电网电源34并且进一步***电动车辆10。技术人员可以将CAN工具40***OBD端口28以检索与电线组30相关联的诊断数据。
在步骤110,电线组30执行自测试程序以收集电线组诊断数据。电线组30的自测试可以从CAN工具40、从控制器模块26或者两者开始。自测试可以包括打开和闭合电线组30的S2开关。
在步骤120,电线组将诊断数据从电线组30发送到电动车辆10。在步骤110的电线组的自测试期间收集诊断数据。在该示例中,数据可以作为提供作为比特流序列的数据的脉冲宽度信号沿着引导线路56从电线组30传送。可以改变脉宽调制信号内的脉冲的占空比以提供不同的比特。在另一示例中,诊断数据沿着引导线路56作为载波在脉宽调制信号之上传送。
在步骤130,转换诊断数据。如前所述,转换可以包含将比特流转换成适于与CAN总线协议通信的诊断代码。
在步骤140,通过OBD端口28将所转换的诊断数据报告给CAN工具40。然后,维修技术人员可以使用CAN工具40接收与电线组30相关联的诊断数据。
一些公开的示例的特征包括检索电线组诊断数据,而不需要专用工具来与电线组相连接。此外,不需要拆卸电线组,例如移除壳体,以检索电线组诊断数据。
前面的描述本质上是示例性的而不是限制性的。对所公开的示例的变型和修改对于本领域技术人员来说可以变得显而易见,其不一定偏离本发明的本质。因此,给予本发明的法律保护的范围只能通过研究所附权利要求来确定。
Claims (19)
1.一种诊断报告方法,包含:
从电动车辆供电设备接收诊断数据;和
通过电动车辆的接口向所述电动车辆以外的设备报告所述诊断数据,其中,所述诊断数据在所述电动车辆供电设备上执行自测试期间收集。
2.根据权利要求1所述的方法,进一步包含使用控制器局域网(CAN)总线协议报告所述诊断数据。
3.根据权利要求1所述的方法,其中所述接口是车载诊断(OBD)端口。
4.根据权利要求1所述的方法,其中所述诊断数据作为信号从所述电动车辆供电设备接收,并且所述方法进一步包含在所述报告之前将所述信号转换为诊断代码。
5.根据权利要求4所述的方法,其中所述信号是脉宽调制信号。
6.根据权利要求4所述的方法,进一步包含使用所述电动车辆的控制器转换所述信号。
7.根据权利要求6所述的方法,其中所述控制器是与所述电动车辆的电池牵引***相连接的电池充电器控制模块。
8.根据权利要求6所述的方法,进一步包含从所述电动车辆供电设备接收交流电,并使用所述控制器将所述交流电转换成直流电。
9.根据权利要求1所述的方法,其中,从所述电动车辆供电设备的引导线路接收所述诊断数据。
10.根据权利要求1所述的方法,进一步包含使用通过所述电动车辆供电设备从外部电源发送到所述电动车辆的电力对所述电动车辆的牵引电池充电。
11.根据权利要求1所述的方法,其中所述电动车辆供电设备是电线组。
12.一种诊断方法,包含:
在电动车辆供电设备上执行自测试以收集所述电动车辆供电设备的诊断数据;
将所述诊断数据从所述电动车辆供电设备发送到电动车辆,以便于所述电动车辆将所述诊断数据报告给所述电动车辆外部的控制器局域网工具。
13.根据权利要求12所述的方法,其中所述电动车辆供电设备在所述自测试和发送诊断数据二者期间连接到外部电源和所述电动车辆。
14.根据权利要求12所述的方法,进一步包含使用所述电动车辆供电设备的引导线路将所述诊断数据发送到所述电动车辆。
15.一种电动车辆总成,包含:
电动车辆的控制器,所述控制器配置为从电动车辆供电设备接收诊断数据;和
配置为向所述电动车辆以外的设备报告所述诊断数据的所述电动车辆的接口,
其中,所述诊断数据在所述电动车辆供电设备上执行自测试期间收集。
16.根据权利要求15所述的电动车辆总成,其中所述接口是车载诊断(OBD)端口,所述端口配置为使用控制器局域网协议向控制器局域网(CAN)工具报告所述诊断数据。
17.根据权利要求15所述的电动车辆总成,其中所述电动车辆包括配置为使用通过所述电动车辆供电设备从外部电源传输到所述车辆的电力进行充电的牵引电池。
18.根据权利要求15所述的电动车辆总成,其中所述诊断数据被接收自所述电动车辆供电设备的引导线路。
19.根据权利要求15所述的电动车辆总成,其中所述诊断数据作为比特流信号被接收。
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