CN102879200B - A method for determining engine common workspace, apparatus and system for - Google Patents

A method for determining engine common workspace, apparatus and system for Download PDF

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CN102879200B
CN102879200B CN 201210351654 CN201210351654A CN102879200B CN 102879200 B CN102879200 B CN 102879200B CN 201210351654 CN201210351654 CN 201210351654 CN 201210351654 A CN201210351654 A CN 201210351654A CN 102879200 B CN102879200 B CN 102879200B
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CN 201210351654
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CN102879200A (en )
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范振勇
孙永亮
王秀雷
马雁
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潍柴动力股份有限公司
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Abstract

本发明公开了一种测定发动机常用工作区的方法,用于快速、准确地获得发动机的常用工作区,该方法包括:在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值;保存发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系;在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值后;查询发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩;根据发动机的实际转速以及发动机的实际扭矩,确定发动机的常用工作区。 The present invention discloses a method for determining engine work area used for fast and accurate access to the work area used in the engine, the method comprising: when the engine test bench, oxynitride collected at different engine speed and engine torque condition matter emission amount and the correction parameter values; save engine speed, engine torque and the correspondence between the correction parameter value with the emission of nitrogen oxides; in actual operation of the vehicle, the actual speed of acquisition, the actual NOx emissions of the engine and an actual correction parameters after value; query engine speed, engine torque and the correspondence between the correction parameter value and NOx emissions, the actual engine torque is obtained in the actual operation of the vehicle; the actual engine speed and the actual engine torque, engine operation determining common Area. 本发明还公开了一种测定发动机常用工作区的系统及装置。 The present invention also discloses a system and apparatus used for the determination of the working area of ​​the engine.

Description

一种测定发动机常用工作区的方法、装置及系统 A method for determining engine common workspace, apparatus and system for

技术领域 FIELD

[0001] 本发明涉及汽车发动机技术领域,具体涉及一种测定发动机常用工作区的方法、装置及系统。 [0001] The present invention relates to the field of automobile engine, particularly relates to a method of determining an engine common workspace, apparatus and system.

背景技术 Background technique

[0002]目前,社会对于节能减排的意识越来越强,如何更加有效的降低油耗,同时满足汽车尾气排放标准法规,对汽车发动机技术提出了日益严峻的挑战,因此需要分析发动机的常用工作区。 [0002] At present, the social awareness of energy conservation is growing, how to more effectively reduce fuel consumption, vehicle emissions standards while meeting regulations for automobile engine technology presents a growing challenge, therefore we need to analyze the common work of the engine Area. 发动机的常用工作区是指发动机在匹配整车时的主要运行工况,也就是不同转速和扭矩对应的工作区域。 Commonly refers to a working area of ​​the engine main engine operating conditions when the matching of the vehicle, i.e. speed and torque corresponding to the different work areas. 可以根据获取的常用工作区,为优化发动机的性能提供依据,选取最优发动机配置确定优化的方向,指导发动机性能优化匹配和整车匹配,达到最佳油耗区与发动机的常用工作区一致。 According to the work area can be used to obtain and provide the basis for optimizing engine performance, choose the optimum configuration engine optimization to determine the direction, guidance and matching engine performance vehicle matching optimization, to achieve common workspace area with optimum fuel consumption engine of the same.

[0003] 发动机的常用工作区可以通过发动机转速以及发动机扭矩测定,在现有技术中,是通过测定进气时增压后压力推算发动机扭矩,进而根据发动机转速以及发动机扭矩获得发动机的常用工作区。 [0003] Frequently workspace engine speed and the engine torque may be measured by the engine, in the prior art, is supercharged by the intake pressure measured estimated engine torque, and thus used to obtain a work area of ​​the engine the engine speed and the engine torque . 但是,通过测定增压后压力来推算常用工作区,存在响应速度慢,测量准确度较低的缺点。 However, the supercharging pressure measured by the commonly used to estimate the work area, the presence of slow response, low measurement accuracy disadvantages.

发明内容 SUMMARY

[0004] 有鉴于此,本发明的主要目的是提供一种测定发动机常用工作区的方法、装置及系统,以解决现有技术中通过测定增压后压力来推算发动机常用工作区,响应速度慢,测量准确度较低的问题。 [0004] In view of this, the main object of the present invention is to provide a method, apparatus and system for measuring engine common work area, in order to solve the prior art used to calculate engine work area measured by the supercharging pressure, slow response low measurement accuracy problems.

[0005] 为解决上述问题,本发明提供的技术方案如下: [0005] In order to solve the above problems, the present invention provides the following technical solution:

[0006] —种测定发动机常用工作区的方法,所述方法包括: [0006] - Method to Measure engine common work area, said method comprising:

[0007] 在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值后,接收所述发动机转速、所述发动机扭矩、所述修正参数值以及所述氮氧化物排放量; After [0007] When the engine bench tests, NOx emissions collected and the correction parameter values ​​for different engine speed and engine torque condition, receiving the engine speed, the engine torque, the correction value and the parameters NOx emissions;

[0008] 保存所述发动机转速、所述发动机扭矩以及所述修正参数值与所述氮氧化物排放量的对应关系; [0008] storing the engine speed, the engine torque parameter and the correspondence between the correction value and the nitrogen oxide emissions;

[0009] 在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值后,接收所述发动机实际转速、所述氮氧化物实际排放量以及所述实际修正参数值; After [0009] In the actual operation of the vehicle, the actual speed of acquisition, the actual NOx emissions of the engine and an actual value of the correction parameter, receiving the actual engine speed, the actual emissions of nitrogen oxides and the actual value of the correction parameter ;

[0010] 查询所述发动机转速、所述发动机扭矩以及所述修正参数值与所述氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩; [0010] The query engine speed, the engine torque parameter and the correspondence between the correction value and the nitrogen oxide emissions, the actual engine torque is obtained in the actual operation of the vehicle;

[0011] 根据所述发动机的实际转速以及所述发动机的实际扭矩,确定发动机的常用工作区。 [0011] The actual speed of the engine and an actual torque of the engine, the engine is determined common work area.

[0012] 相应的,修正参数值包括进气温度、进气压力以及进气湿度; [0012] Accordingly, the correction parameter value comprises an intake air temperature, intake pressure and an intake air humidity;

[0013] 实际修正参数值包括实际进气温度、实际进气压力以及实际进气湿度。 [0013] The actual correction parameter value comprises the actual intake air temperature, the actual intake pressure and an actual intake air humidity.

[0014] 相应的,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值,包括: [0014] Accordingly, the actual rotation speed of the engine is acquired, the actual NOx emissions and the actual value of the correction parameter, comprising:

[0015] 通过在车辆飞轮壳上设置的转速传感器采集发动机的实际转速,通过在车辆排气管路上设置的氮氧化物测定装置采集氮氧化物实际排放量,通过温度传感器采集实际进气温度,通过压力传感器采集实际进气压力,通过湿度传感器采集实际进气湿度。 [0015] The actual engine speed acquired by the speed sensor provided in the flywheel housing on the vehicle, means collecting actual emissions of nitrogen oxides by a temperature sensor to collect actual intake air temperature measured by nitrogen oxide disposed in the exhaust line of the vehicle, by the pressure sensor to collect actual intake pressure, the actual intake air humidity by the humidity sensor acquisition.

[0016] 相应的,所述氮氧化物测定装置包括:氮氧化物传感器或快速氮氧化物分析仪。 [0016] Accordingly, the nitrogen oxide measuring apparatus comprising: a nitrogen oxide sensor or a rapid nitrogen oxide analyzer.

[0017] —种测定发动机常用工作区的装置,所述装置包括: [0017] - means to Measure common workspace engine, the apparatus comprising:

[0018] 第一接收单元,在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值后,接收所述发动机转速、所述发动机扭矩、所述修正参数值以及所述氮氧化物排放量; After [0018] The first receiving unit, when the engine bench tests, NOx emissions collected and the correction parameter values ​​for different engine speed and engine torque condition, receiving the engine speed, the engine torque, the correction parameter value and the NOx emissions;

[0019] 数据保存单元,用于保存所述发动机转速、所述发动机扭矩以及所述修正参数值与所述氮氧化物排放量的对应关系; [0019] The data storage unit operable to hold the engine speed, the engine torque parameter and the correspondence between the correction value and the nitrogen oxide emissions;

[0020] 第二接收单元,在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值后,接收所述发动机实际转速、所述氮氧化物实际排放量以及所述实际修正参数值; [0020] The second receiving unit, in the actual operation of the vehicle, the actual speed of the engine is acquired, the actual NOx emissions and the actual correction parameter value, receiving the actual engine speed, the actual emissions of nitrogen oxides as well as The actual value of said correction parameter;

[0021] 查询单元,用于查询所述发动机转速、所述发动机扭矩以及所述修正参数值与所述氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩; [0021] querying unit configured to query the engine speed, the engine torque parameter and the correspondence between the correction value and the nitrogen oxide emissions, the actual engine torque is obtained in the actual operation of the vehicle;

[0022] 确定单元,用于根据所述发动机的实际转速以及所述发动机的实际扭矩,确定发动机的常用工作区。 [0022] The determination means according to the actual speed of the engine and an actual torque of the engine, the engine is determined common work area.

[0023] 相应的,修正参数值包括进气温度、进气压力以及进气湿度; [0023] Accordingly, the correction parameter value comprises an intake air temperature, intake pressure and an intake air humidity;

[0024] 实际修正参数值包括实际进气温度、实际进气压力以及实际进气湿度。 [0024] The actual correction parameter value comprises the actual intake air temperature, the actual intake pressure and an actual intake air humidity.

[0025] —种测定发动机常用工作区的系统,所述系统包括: [0025] - the system common species measured engine work area, said system comprising:

[0026] 发动机台架测试数据采集装置,用于在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值; [0026] The engine bench test data acquisition means for, when the engine bench tests, NOx emissions collected and the correction parameter values ​​for different engine speed and engine torque condition;

[0027] 路谱数据采集装置,用于在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值; [0027] The channel spectral data collection device for the vehicle is actually running, collecting actual speed, the actual NOx emissions and the actual value of the correction parameter of the engine;

[0028] 发动机常用工作区测定装置,用于接收所述发动机转速、所述发动机扭矩、所述氮氧化物排放量以及所述修正参数值;保存所述发动机转速、所述发动机扭矩以及所述修正参数值与所述氮氧化物排放量的对应关系;接收所述发动机的实际转速、所述氮氧化物实际排放量以及所述实际修正参数值;查询所述发动机转速、所述发动机扭矩以及所述修正参数值与所述氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩;根据所述发动机的实际转速以及所述发动机的实际扭矩,获得发动机的常用工作区。 [0028] Engine common workspace measuring means for receiving said engine speed, the engine torque, the NOx emissions and the correction parameter value; storing the engine speed, the engine torque and the correction parameter value correlates with the amount of nitrogen oxide emissions; receiving the actual engine speed, the actual emissions of nitrogen oxides and said actual parameter value correction; querying the engine speed, the engine torque, and the correspondence relationship between the correction parameter value of the nitrogen oxide emissions, the actual engine torque is obtained in the actual operation of the vehicle; the actual engine speed and the actual torque of the engine, used to obtain a work area of ​​the engine.

[0029] 相应的,修正参数值包括进气温度、进气压力以及进气湿度; [0029] Accordingly, the correction parameter value comprises an intake air temperature, intake pressure and an intake air humidity;

[0030] 实际修正参数值包括实际进气温度、实际进气压力以及实际进气湿度。 [0030] The actual correction parameter value comprises the actual intake air temperature, the actual intake pressure and an actual intake air humidity.

[0031] 相应的,所述路谱数据采集装置,包括: [0031] Accordingly, the channel spectrum data acquisition device, comprising:

[0032] 转速传感器,设置于车辆飞轮壳上,用于采集发动机的实际转速; [0032] The rotational speed sensor, the flywheel housing is provided on a vehicle, for collecting the actual speed of the engine;

[0033] 氮氧化物测定装置,用于设置于车辆排气管路上,用于采集氮氧化物实际排放量; [0033] a nitrogen oxide measuring apparatus for a vehicle is provided in the exhaust line, for acquiring the actual NOx emissions;

[0034] 温度传感器,用于采集实际进气温度; [0034] a temperature sensor for acquiring the actual intake air temperature;

[0035] 压力传感器,用于采集实际进气压力; [0035] a pressure sensor for acquiring the actual intake pressure;

[0036] 湿度传感器,用于采集实际进气湿度。 [0036] The humidity sensor for acquiring the actual intake air humidity.

[0037] 相应的,所述氮氧化物测定装置,包括:氮氧化物传感器或快速氮氧化物分析仪。 [0037] Accordingly, the nitrogen oxide measuring apparatus, comprising: a nitrogen oxide sensor or a rapid nitrogen oxide analyzer.

[0038] 由此可见,本发明具有如下有益效果: [0038] Thus, the present invention has the following advantages:

[0039] 本发明利用发动机氮氧化物测定装置直接测定氮氧化物实际排放量及相关参数,根据在发动机台架测试时保存的氮氧化物实际排放量及相关参数与发动机扭矩的对应关系,获得发动机的实际扭矩,进而确定发动机常用工作区,测量响应速度快,能够得到更加准确的发动机扭矩,从而提高发动机常用工作区测定的准确度,为发动机性能优化匹配和整车匹配提供更优化的参考。 [0039] Direct determination of nitrogen oxide emissions and the actual parameters of the present invention is related to the nitrogen oxide by the engine measurement device according to the stored when the engine bench tests actual emissions of nitrogen oxides and related parameters correspond to the engine torque to obtain the actual torque of the engine, the engine and to determine the common workspace, fast response measurement, can be obtained more accurate engine torque, thereby improving the measurement accuracy of the engine common work area, and optimal matching of the vehicle to match the engine performance to provide more optimal reference .

附图说明 BRIEF DESCRIPTION

[0040] 图1为本发明测定发动机常用工作区方法的流程图; [0040] FIG. 1 is a flowchart common work area measuring method for an engine of the present invention;

[0041] 图2为本发明测定发动机常用工作区装置的示意图; [0041] FIG. 2 is a schematic diagram of the engine common workspace invention measuring device;

[0042]图3为本发明测定发动机常用工作区系统的结构示意图; [0042] Fig 3 a schematic structure of the measurement system of the engine common workspace of the present invention;

[0043]图4为本发明中路谱数据采集装置的示意图。 [0043] FIG. 4 is a schematic Road spectral data collection device of the present invention.

具体实施方式 detailed description

[0044] 为使本发明的上述目的、特征和优点能够更加明显易懂,下面结合附图和具体实施方式对本发明实施例作进一步详细的说明。 [0044] For the above-described objects, features and advantages of the invention more apparent, the following embodiments of the present invention in conjunction with the accompanying drawings and specific embodiments described in further detail.

[0045] 本发明提供的一种测定发动机常用工作区的方法,是针对现有技术中通过测定增压后压力来推算发动机常用工作区,响应速度慢,测量准确度较低的问题,提出通过测定车辆的氮氧化物(NOx)的排放量,推算发动机的实际扭矩,再根据车辆的实际转速及实际扭矩测定发动机的常用工作区。 [0045] The conventional method of measuring an engine of the present invention provides a work area is to be estimated for the prior art engine common workspace by measuring the supercharging pressure, a slow response speed, the problem of low accuracy of measurement proposed by emissions of nitrogen oxides (NOx) in the measurement of the vehicle, the actual torque of the engine is estimated, and then commonly measured based on the actual working area of ​​the engine speed and the actual torque of the vehicle.

[0046] 基于上述思想,参见图1所示,本发明测定发动机常用工作区的方法,包括以下步骤: [0046] The idea, commonly used method for measuring the engine workspace Referring to FIG. 1 of the present invention is based, comprises the following steps:

[0047] 步骤101:在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值后,接收发动机转速、发动机扭矩、修正参数值以及氮氧化物排放量。 [0047] Step 101: after the engine bench tests, NOx emissions collected and the correction parameter values ​​for different engine speed and engine torque condition, receives the engine speed, engine torque, and a correction parameter value of NOx emissions .

[0048] 步骤102:保存发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系。 [0048] Step 102: Save the engine speed, the engine torque parameter and the correspondence between the correction value and the amount of nitrogen oxide emissions.

[0049] 在发动机台架上进行NOx排放量万有特性试验时,测定不同发动机转速和发动机扭矩条件下的氮氧化物排放量,修正参数值可以包括进气温度、进气压力以及进气温度,根据修正参数以及NOx排放量万有特性试验数据,可以建立路谱分析数据库,在路谱分析数据库中保存发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系。 [0049] The amount of NOx emissions for universal characteristic test to measure the emissions of nitrogen oxides at different engine speed and engine torque condition, the correction parameter value may include intake air temperature, intake pressure, and intake air temperature in the engine bench the correction parameter and the NOx emissions universal characteristic test data, spectral analysis can be established path database, an engine speed stored in the database spectrum analysis path corresponding relationship between engine torque and the correction parameter values ​​and NOx emissions.

[0050] 步骤103:在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值后,接收发动机实际转速、氮氧化物实际排放量以及实际修正参数值。 [0050] Step 103: After the vehicle is actually running, collecting actual speed, the actual NOx emissions of the engine and an actual value of the correction parameter, receiving the actual engine speed, actual emissions of nitrogen oxides and the actual value of the correction parameter.

[0051] 其中,实际修正参数对应于修正参数,实际修正参数值可以包括实际进气温度、实际进气压力以及实际进气湿度。 [0051] wherein the correction parameter corresponding to an actual correction parameters, the correction parameter value may comprise the actual actual intake air temperature, the actual intake pressure and an actual intake air humidity.

[0052] 在进行整车匹配测试时,即车辆实际运行中,通过在车辆飞轮壳上设置的转速传感器采集发动机的实际转速,通过在车辆排气管路上设置的氮氧化物测定装置(例如氮氧化物NOx传感器或快速氮氧化物NOx分析仪)采集氮氧化物实际排放量,通过温度传感器采集实际进气温度,通过压力传感器采集实际进气压力,通过湿度传感器采集实际进气湿度。 [0052] When the vehicle matching test is in progress, i.e., the actual operation of the vehicle, the actual engine speed acquired by the speed sensor provided in the flywheel housing on the vehicle, by the nitrogen oxide measuring means disposed in the exhaust line of the vehicle (e.g., nitrogen oxide NOx sensor or a rapid nitrogen oxide NOx analyzer) acquisition actual emissions of nitrogen oxides by a temperature sensor to collect actual intake air temperature, the pressure sensor collected by the actual intake pressure, humidity sensor acquired through actual intake humidity.

[0053] 步骤104:查询发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩。 [0053] Step 104: Query engine speed, engine torque parameter and the correspondence between the correction value and the nitrogen oxide emissions, the actual engine torque is obtained in the actual operation of the vehicle.

[0054] 发动机在实际工作过程中,在不同的发动机转速下,随着负载的增加,发动机的NOx排放量也是增加的,在测量到发动机实际转速、氮氧化物实际排放量以及实际修正参数值后,可以查询路谱分析数据库,获得在车辆实际运行时发动机的实际扭矩。 [0054] The actual engine operation, at different engine speeds, as the load increases, the NOx emissions of the engine is increased, the measured actual engine speed, actual emissions of nitrogen oxides and the actual value of the correction parameter after passage spectral analysis can query a database to obtain the actual torque of the engine in the vehicle is actually running.

[0055] 步骤105:根据发动机的实际转速以及发动机的实际扭矩,确定发动机的常用工作区。 [0055] Step 105: The actual speed and the actual engine torque of the engine, the engine is determined common work area.

[0056] 发动机的常用工作区是指不同转速和扭矩对应的工作区域,获得发动机的实际转速以及发动机的实际扭矩,即可确定发动机的常用工作区。 [0056] Frequently the work area of ​​the engine refers to the different speed and torque corresponding to the working area to obtain the actual speed and the actual engine torque of the engine, the engine can be determined in the usual work area.

[0057] 这样,利用发动机氮氧化物测定装置直接测定氮氧化物实际排放量及相关参数,根据在发动机台架测试时保存的氮氧化物实际排放量及相关参数与发动机扭矩的对应关系,获得发动机的实际扭矩,进而确定发动机的常用工作区,测量响应速度快,能够得到更加准确的发动机扭矩,从而提高发动机常用工作区测定的准确度,为发动机性能优化匹配和整车匹配提供更优化的参考。 [0057] Thus, a direct determination of the actual emissions of nitrogen oxides and nitrogen oxides by the engine parameters relevant measurement device, according to the stored when the engine bench tests actual emissions of nitrogen oxides and related parameters correspond to the engine torque to obtain the actual torque of the engine, and to determine the common working area of ​​the engine, measuring the response speed can be obtained more accurate engine torque, thereby improving the measurement accuracy of the engine common work area, and optimal matching of the vehicle to match the engine performance to provide more optimal reference.

[0058] 相应的,参见图2所示,本发明还提供一种测定发动机常用工作区的装置,该装置包括: [0058] Accordingly, refer to FIG. 2, the present invention also provides an apparatus for measuring an engine common working area, the apparatus comprising:

[0059] 第一接收单元21、数据保存单元22、第二接收单元23、查询单元24以及确定单元25。 [0059] The first receiving unit 21, a data storage unit 22, second receiving unit 23, an inquiry unit 24 and a determination unit 25.

[0060] 其中,第一接收单元21,用于在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值后,接收发动机转速、发动机扭矩、修正参数值以及氮氧化物排放量; After [0060] wherein the first receiving unit 21, for when the engine bench tests, NOx emissions collected and the correction parameter values ​​for different engine speed and engine torque condition, receives the engine speed, engine torque, the correction parameter value and NOx emissions;

[0061] 数据保存单元22,用于保存发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系; [0061] The data storage unit 22 for holding the engine speed, the engine torque parameter and the correspondence between the correction value and the emission of nitrogen oxides;

[0062] 第二接收单元23,用于在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值后,接收发动机实际转速、氮氧化物实际排放量以及实际修正参数值; [0062] The second receiving unit 23, the actual operation in a vehicle, the actual speed of the engine acquired actual NOx emissions and the actual correction parameter value, receiving the actual engine speed, actual emissions of nitrogen oxides and the actual correction parameter value;

[0063] 查询单元24,用于查询发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩; [0063] The query unit 24 for querying the engine speed, the engine torque parameter and the correspondence between the correction value and the nitrogen oxide emissions, the actual engine torque is obtained in the actual operation of the vehicle;

[0064] 确定单元25,用于根据发动机的实际转速以及发动机的实际扭矩,确定发动机的常用工作区。 [0064] The determining unit 25, according to the actual speed and the actual engine torque of the engine, the engine is determined common work area.

[0065] 在上述实施例中,修正参数值可以包括进气温度、进气压力以及进气湿度;实际修正参数值可以包括实际进气温度、实际进气压力以及实际进气湿度。 [0065] In the above embodiment, the correction parameter value may include intake air temperature, intake pressure and an intake air humidity; the actual correction parameter value may comprise the actual intake air temperature, the actual intake pressure and an actual intake air humidity.

[0066] 第二接收单元23,具体用于在车辆实际运行时,通过在车辆飞轮壳上设置的转速传感器采集发动机的实际转速,通过在车辆排气管路上设置的氮氧化物测定装置采集氮氧化物实际排放量,通过温度传感器采集实际进气温度,通过压力传感器采集实际进气压力,通过湿度传感器采集实际进气湿度后,接收发动机实际转速、氮氧化物实际排放量以及实际修正参数值。 [0066] The second receiving unit 23, specifically for the actual operation of the vehicle, the actual engine speed acquired by the speed sensor provided in the flywheel housing on the vehicle, determined by means of nitrogen of nitrogen oxides collected in the vehicle exhaust line provided the actual amount of oxides emissions by collecting the actual temperature of the intake air temperature sensor, the pressure sensor collected by the actual intake pressure, collected by the humidity sensor after the actual intake air humidity, receiving the actual engine speed, actual emissions of nitrogen oxides and the actual value of the correction parameter .

[0067] 其中,氮氧化物测定装置可以为氮氧化物传感器或者快速氮氧化物分析仪。 [0067] wherein the nitrogen oxide measuring device may be a nitrogen oxide sensor or a rapid nitrogen oxide analyzer.

[0068] 相应的,参见图3所示,本发明还提供一种测定发动机常用工作区的系统,该系统包括: [0068] Accordingly, as shown in Figure 3, the present invention also provides a system for measuring engine common work area, the system comprising:

[0069] 发动机台架测试数据采集装置1、路谱数据采集装置3以及发动机常用工作区测定装置2。 [0069] The engine bench test data acquisition apparatus 1, the spectral data collection device 3, the road and the engine measurement device 2 common work area.

[0070] 其中,发动机台架测试数据采集装置1,用于在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值; [0070] wherein the engine bench test data acquisition device 1, for when the engine bench tests, NOx emissions collected and the correction parameter values ​​for different engine speed and engine torque condition;

[0071] 路谱数据采集装置3,用于在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值; [0071] The channel spectral data collection device 3, the actual operation in a vehicle, the actual speed of acquisition, the actual NOx emissions and the actual value of the correction parameter of the engine;

[0072] 发动机常用工作区测定装置2,用于接收发动机转速、发动机扭矩、氮氧化物排放量以及修正参数值;保存发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系;接收发动机的实际转速、氮氧化物实际排放量以及实际修正参数值;查询发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩;根据发动机的实际转速以及发动机的实际扭矩,获得发动机的常用工作区。 Engine torque parameter and the correspondence between the correction value and the stored NOx emissions engine speed; [0072] Workspace conventional engine measurement device 2, the engine torque, and NOx emissions correction parameter values ​​for receiving an engine speed; receiving the actual engine speed, actual emissions of nitrogen oxides and the actual value of the correction parameter; query engine speed, engine torque parameter and the correspondence between the correction value and the nitrogen oxide emissions, the actual engine torque is obtained in the actual operation of the vehicle; the actual speed and the actual engine torque of the engine, used to obtain a work area of ​​the engine.

[0073] 其中,发动机常用工作区测定装置2可以是上述实施例中的一种测定发动机常用工作区的装置。 [0073] wherein the engine work area used measurement unit 2 may be a device used for the determination of the working area of ​​the engine of the above-described embodiments.

[0074]另外,参见图4所示,路谱数据采集装置3可以包括:转速传感器31、氮氧化物测定装置32、温度传感器33、压力传感器34以及湿度传感器35。 [0074] Further, referring to Figure 4, the channel 3 may spectral data collection device comprising: a speed sensor 31, the nitrogen oxide measuring means 32, temperature sensor 33, pressure sensor 34 and a humidity sensor 35.

[0075] 其中,转速传感器31,设置于车辆飞轮壳上,用于采集发动机的实际转速; [0075] wherein the rotational speed sensor 31, a flywheel housing is provided on the vehicle for collecting the actual speed of the engine;

[0076] 氮氧化物测定装置32,用于设置于车辆排气管路上,用于采集氮氧化物实际排放量;氮氧化物测定装置32可以是氮氧化物传感器或者快速氮氧化物分析仪。 [0076] a nitrogen oxide measuring device 32 for a vehicle is provided in the exhaust line, for acquiring the actual NOx emissions; nitrogen oxide measuring device 32 may be a nitrogen oxide sensor or a rapid nitrogen oxide analyzer.

[0077] 温度传感器33,用于采集实际进气温度; [0077] The temperature sensor 33 for acquiring the actual intake air temperature;

[0078] 压力传感器34,用于采集实际进气压力; [0078] The pressure sensor 34 for acquiring the actual intake pressure;

[0079] 湿度传感器35,用于采集实际进气湿度。 [0079] The humidity sensor 35 for acquiring the actual intake air humidity.

[0080] 修正参数值可以包括进气温度、进气压力以及进气湿度;实际修正参数值可以包括实际进气温度、实际进气压力以及实际进气湿度。 [0080] The correction parameter value may include intake air temperature, intake pressure and an intake air humidity; the actual correction parameter value may comprise the actual intake air temperature, the actual intake pressure and an actual intake air humidity.

[0081] 本系统的工作原理是: [0081] The working principle of this system are:

[0082] 发动机台架测试数据采集装置1在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值; [0082] The engine bench test data acquisition device 1 when the engine bench tests, NOx emissions collected and the correction parameter values ​​for different engine speed and engine torque condition;

[0083] 发动机常用工作区测定装置2接收发动机转速、发动机扭矩、氮氧化物排放量以及修正参数值,并保存发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系; Engine torque parameter and the correspondence between the correction value and the NOx emissions of [0083] the engine area measurement apparatus receives the common working engine speed, engine torque, NOx emissions and the correction parameter value 2, and stores the engine speed,;

[0084] 路谱数据采集装置3在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值,具体可以通过转速传感器31采集发动机的实际转速、通过氮氧化物测定装置32采集氮氧化物实际排放量、通过温度传感器33采集实际进气温度、通过压力传感器采集实际进气压力、通过湿度传感器35采集实际进气湿度; [0084] In the actual operation of the vehicle, the actual engine speed acquisition, the actual NOx emissions and the actual value of the correction parameter channel spectral data collection device 3, particularly as measured by the nitrogen oxide can be collected by the actual speed of the engine rotational speed sensor 31, 32 collected actual emissions of nitrogen oxides, the temperature sensor 33 through the actual intake air temperature acquired by the pressure sensor to collect actual intake pressure, collecting actual intake humidity by the humidity sensor 35;

[0085] 发动机常用工作区测定装置2接收发动机的实际转速、氮氧化物实际排放量以及实际修正参数值;查询发动机转速、发动机扭矩以及修正参数值与氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩;根据发动机的实际转速以及发动机的实际扭矩,最终获得发动机的常用工作区。 [0085] The common workspace engine actual rotation speed measuring means, actual emissions of nitrogen oxides and the actual value of the correction parameter of the engine 2 receives; query engine speed, engine torque parameter and the correspondence between the correction value and the nitrogen oxide emissions, in the actual torque of the engine when the vehicle is actually running; actual engine speed and the actual engine torque, the finally obtained working area of ​​the engine used.

[0086] 这样,利用发动机氮氧化物测定装置直接测定氮氧化物实际排放量及相关参数,根据在发动机台架测试时保存的氮氧化物实际排放量及相关参数与发动机扭矩的对应关系,获得发动机的实际扭矩,进而确定发动机的常用工作区,测量响应速度快,能够得到更加准确的发动机扭矩,从而提高发动机常用工作区测定的准确度,为发动机性能优化匹配和整车匹配提供更优化的参考。 [0086] Thus, a direct determination of the actual emissions of nitrogen oxides and nitrogen oxides by the engine parameters relevant measurement device, according to the stored when the engine bench tests actual emissions of nitrogen oxides and related parameters correspond to the engine torque to obtain the actual torque of the engine, and to determine the common working area of ​​the engine, measuring the response speed can be obtained more accurate engine torque, thereby improving the measurement accuracy of the engine common work area, and optimal matching of the vehicle to match the engine performance to provide more optimal reference.

[0087] 需要说明的是,本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。 [0087] Incidentally, in the present specification, various embodiments of a progressive manner described, is different from the embodiment and the other embodiments each of which emphasizes embodiment, the same or similar portions between each other various embodiments Referring i.e. can. 对于实施例公开的系统或装置而言,由于其与实施例公开的方法相对应,所以描述的比较简单,相关之处参见方法部分说明即可。 For a system or apparatus disclosed embodiment, since it corresponds to the method disclosed embodiments, the description is relatively simple, see Methods of the correlation can be described.

[0088] 还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。 [0088] It is further noted that, herein, relational terms such as first and second and the like are only used to distinguish one entity or operation from another entity or action without necessarily requiring or implying these the presence of any such actual relationship or order between such entities or operations. 而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。 Further, the term "comprising", "containing" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, article, or apparatus not include only those elements but not expressly listed further comprising the other elements, or further comprising such process, method, article, or apparatus inherent elements. 在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。 Without more constraints, by the wording "include a ......" defined does not exclude the existence of additional identical elements in the element comprising a process, method, article, or apparatus.

[0089] 结合本文中所公开的实施例描述的方法或算法的步骤可以直接用硬件、处理器执行的软件模块,或者二者的结合来实施。 [0089] The steps of a method or algorithm described in the embodiments disclosed herein may be implemented in hardware, or a combination thereof, in a software module executed by a processor implemented directly. 软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程R0M、电可擦除可编程R0M、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。 A software module may be placed in a random access memory (RAM), a memory, a read only memory (ROM), electrically programmable R0M, electrically erasable programmable R0M, registers, a hard disk, a removable disk, CD-ROM, or within the technical field known any other form of storage medium.

[0090] 对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。 [0090] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. 对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。 Various modifications to these professionals skilled in the art of the present embodiments will be apparent, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. 因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。 Accordingly, the present invention will not be limited to the embodiments shown herein but is to be accorded herein consistent with the principles and novel features disclosed widest scope.

Claims (4)

  1. 1.一种测定发动机常用工作区的系统,其特征在于,所述系统包括: 发动机台架测试数据采集装置,用于在发动机台架测试时,采集不同发动机转速和发动机扭矩条件下的氮氧化物排放量以及修正参数值; 路谱数据采集装置,用于在车辆实际运行时,采集发动机的实际转速、氮氧化物实际排放量以及实际修正参数值; 发动机常用工作区测定装置,用于接收所述发动机转速、所述发动机扭矩、所述氮氧化物排放量以及所述修正参数值;保存所述发动机转速、所述发动机扭矩以及所述修正参数值与所述氮氧化物排放量的对应关系;接收所述发动机的实际转速、所述氮氧化物实际排放量以及所述实际修正参数值;查询所述发动机转速、所述发动机扭矩以及所述修正参数值与所述氮氧化物排放量的对应关系,获得在车辆实际运行时发动机的实际扭矩;根据 1. A system for measuring engine common work area, characterized in that, the system comprising: an engine bench test data acquisition means for, when the engine test bench, under oxynitride collection different engine speed and engine torque condition matter emission amount and the correction parameter values; channel spectral data collection device for the vehicle is actually running, the actual speed of the engine is acquired, the actual NOx emissions and the actual value of the correction parameter; means measuring engine common work area, means for receiving the engine speed, the engine torque, the NOx emissions and the correction parameter value; storing the engine speed, the engine torque and the correction of the parameter value corresponding to NOx emissions relation; receiving the actual engine speed, the actual emissions of nitrogen oxides and said actual parameter value correction; querying the engine speed, the engine torque parameter and the correction value and the NOx emissions correspondence between the actual engine torque is obtained in the actual operation of the vehicle; the 述发动机的实际转速以及所述发动机的实际扭矩,获得发动机的常用工作区,所述发动机的常用工作区指所述发动机在匹配整车时的运行工况,所述发动机的常用工作区包括不同转速和扭矩对应的工作区域。 Said engine actual rotation speed and the actual engine torque, the engine is obtained common working area, said working area commonly refers to operating conditions of the engine when the engine of the vehicle match, the usual engine includes different workspace speed and torque corresponding to the working area.
  2. 2.根据权利要求1所述的系统,其特征在于, 修正参数值包括进气温度、进气压力以及进气湿度; 实际修正参数值包括实际进气温度、实际进气压力以及实际进气湿度。 2. The system according to claim 1, wherein the correction parameter value comprises an intake air temperature, intake pressure and an intake air humidity; the actual correction parameter value comprises the actual intake air temperature, the actual intake pressure and an actual intake air humidity .
  3. 3.根据权利要求2所述的系统,其特征在于,所述路谱数据采集装置,包括: 转速传感器,设置于车辆飞轮壳上,用于采集发动机的实际转速; 氮氧化物测定装置,用于设置于车辆排气管路上,用于采集氮氧化物实际排放量; 温度传感器,用于采集实际进气温度; 压力传感器,用于采集实际进气压力; 湿度传感器,用于采集实际进气湿度。 3. The system of claim 2, wherein said channel spectrum data acquisition device, comprising: a rotational speed sensor, the flywheel housing is provided on a vehicle, for collecting the actual speed of the engine; a nitrogen oxide measuring means for disposed in the exhaust line of the vehicle, for acquiring the actual NOx emissions; a temperature sensor for acquiring the actual intake air temperature; a pressure sensor for acquiring the actual intake pressure; humidity sensor, for acquiring the actual intake humidity.
  4. 4.根据权利要求2所述的系统,其特征在于,所述氮氧化物测定装置,包括: 氮氧化物传感器或快速氮氧化物分析仪。 4. The system of claim 2, characterized in that the nitrogen oxide measuring apparatus, comprising: a nitrogen oxide sensor or a rapid nitrogen oxide analyzer.
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