CN105443211A - Catalyst air supplement equipment for SBC circulation and control system thereof - Google Patents
Catalyst air supplement equipment for SBC circulation and control system thereof Download PDFInfo
- Publication number
- CN105443211A CN105443211A CN201610004072.2A CN201610004072A CN105443211A CN 105443211 A CN105443211 A CN 105443211A CN 201610004072 A CN201610004072 A CN 201610004072A CN 105443211 A CN105443211 A CN 105443211A
- Authority
- CN
- China
- Prior art keywords
- air
- sbc
- catalyst converter
- control system
- circulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims description 25
- 239000013589 supplement Substances 0.000 title description 9
- 239000000446 fuel Substances 0.000 claims abstract description 40
- 230000001105 regulatory effect Effects 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims description 47
- 238000013475 authorization Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 2
- 239000007921 spray Substances 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 67
- 239000007789 gas Substances 0.000 description 33
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
本发明公开一种用于SBC循环的催化器补气设备及其控制系统，涉及轻型汽车的标准台架循环技术领域，以解决开环控制方式下每循环补气量重复性低，实际空燃比与标准空燃比相差大的问题。本发明所述的用于SBC循环的催化器补气设备，包括：通过管路依次顺序连接在压缩空气源与催化器之间的第一电磁阀、第一手动调压阀、第一储气罐、第二手动调压阀、第二储气罐、压力指示计、温度指示计、流量指示计、质量流量控制器和第二电磁阀；空气流量控制装置包括压力指示计、温度指示计、流量指示计和质量流量控制器，其能够对空气输出流量进行控制，并根据压力、温度对空气输出流量进行修正。本发明主要应用于轻型汽车发动机标准台架循环中。
The invention discloses a catalytic converter air supply equipment and its control system for SBC cycle, which relates to the technical field of light vehicle standard bench cycle, to solve the problem of low repeatability of the air supply amount per cycle in the open-loop control mode, and the actual air-fuel ratio and the actual air-fuel ratio. The problem of large difference in standard air-fuel ratio. The catalytic converter gas supply equipment for SBC cycle according to the present invention comprises: a first electromagnetic valve, a first manual pressure regulating valve, a first gas storage device connected in sequence between the compressed air source and the catalytic converter through pipelines tank, a second manual pressure regulating valve, a second air storage tank, a pressure indicator, a temperature indicator, a flow indicator, a mass flow controller and a second solenoid valve; the air flow control device includes a pressure indicator, a temperature indicator , a flow indicator and a mass flow controller, which can control the air output flow and correct the air output flow according to the pressure and temperature. The invention is mainly applied in the standard bench cycle of light-duty automobile engines.
Description
技术领域technical field
本发明涉及轻型汽车的标准台架循环(简称SBC)技术领域，尤其是涉及一种用于SBC循环的催化器补气设备及其控制系统。The invention relates to the technical field of standard bench cycle (SBC for short) of light-duty vehicles, in particular to a catalytic converter air supply device and a control system for the SBC cycle.
背景技术Background technique
目前，根据国家标准GB18352.5-2013《轻型汽车污染物排放限值及测量方法(中国第五阶段)》的要求，可以使用SBC循环(即标准台架循环)对催化器进行老化；实际操作时，依据标准要求，可以周期性地为催化器提供定量的空气(氧气)以完成操作。At present, according to the requirements of the national standard GB18352.5-2013 "Light Vehicle Pollutant Emission Limits and Measurement Methods (China's Fifth Stage)", the SBC cycle (that is, the standard bench cycle) can be used to age the catalytic converter; the actual operation At this time, according to the standard requirements, a certain amount of air (oxygen) can be periodically provided to the catalytic converter to complete the operation.
具体地，现有技术中的用于SBC循环的催化器补气控制系统，通常为通过在每循环中控制相应的开关阀的通断时间以控制空气(氧气)的补气量，一次调节设置后不再变化，不能随温度、压力及发动机变化而改变，导致实际空燃比超过标准规定，即现有技术中的用于SBC循环的催化器补气控制系统通常采用的是开环控制的控制方式。Specifically, the catalytic converter gas supplement control system used in the SBC cycle in the prior art usually controls the on-off time of the corresponding switch valve in each cycle to control the supplementary gas amount of air (oxygen). No longer change, can not change with temperature, pressure and engine changes, resulting in the actual air-fuel ratio exceeding the standard regulations, that is, the catalytic converter gas supplement control system for the SBC cycle in the prior art usually adopts an open-loop control control method .
然而，本申请发明人发现现有技术中采用开环控制的方式时，由于受环境温度的变化、气源压力的波动、以及每循环加浓的燃料气气量的波动等因素的影响，容易导致用于SBC循环的催化器补气控制系统中每循环的补气量的重复性较低，并且实际空燃比与标准法规要求的空燃比相差较大。However, the inventors of the present application found that when the open-loop control method is adopted in the prior art, it is easy to cause The reproducibility of the supplementary air amount per cycle in the catalytic converter supplementary air control system for the SBC cycle is low, and the actual air-fuel ratio is quite different from the air-fuel ratio required by the standard regulations.
发明内容Contents of the invention
本发明的目的在于提供一种用于SBC循环的催化器补气设备及其控制系统，以解决现有的开环控制方式容易导致补气控制系统中每循环的补气量的重复性较低，且实际空燃比与标准法规要求的空燃比相差较大的问题。The object of the present invention is to provide a catalytic converter air supply equipment and its control system for SBC circulation, to solve the problem that the existing open-loop control method easily leads to low repeatability of the air supply amount per cycle in the air supply control system, And there is a big difference between the actual air-fuel ratio and the air-fuel ratio required by the standard regulations.
本发明提供一种用于SBC循环的催化器补气设备，包括：空气存储装置，所述空气存储装置包括第一储气罐和第二储气罐；空气流量控制装置，所述空气流量控制装置包括压力指示计、温度指示计、流量指示计和质量流量控制器；所述空气流量控制装置能够对空气输出流量进行控制，并根据压力、温度对所述空气输出流量进行修正；辅助调节装置，所述辅助调节装置包括第一电磁阀、第一手动调压阀、第二手动调压阀和第二电磁阀；装配时，压缩空气源与所述第一电磁阀通过管路连接，所述第一电磁阀与所述第一手动调压阀通过管路连接，所述第一手动调压阀与所述第一储气罐通过管路连接，所述第一储气罐与所述第二手动调压阀通过管路连接，所述第二手动调压阀与所述第二储气罐通过管路连接，所述第二储气罐与所述压力指示计通过管路连接，所述压力指示计与所述温度指示计通过管路连接，所述温度指示计与所述流量指示计通过管路连接，所述流量指示计与所述质量流量控制器通过管路连接，所述质量流量控制器与所述第二电磁阀通过管路连接，所述第二电磁阀与催化器通过管路连接。The present invention provides a catalytic converter air supply equipment for SBC cycle, comprising: an air storage device, the air storage device includes a first air storage tank and a second air storage tank; an air flow control device, the air flow control The device includes a pressure indicator, a temperature indicator, a flow indicator and a mass flow controller; the air flow control device can control the air output flow, and correct the air output flow according to the pressure and temperature; the auxiliary adjustment device , the auxiliary regulating device includes a first solenoid valve, a first manual pressure regulating valve, a second manual pressure regulating valve and a second solenoid valve; during assembly, the compressed air source is connected to the first solenoid valve through a pipeline, The first solenoid valve is connected to the first manual pressure regulating valve through a pipeline, the first manual pressure regulating valve is connected to the first gas storage tank through a pipeline, and the first gas storage tank is connected to the The second manual pressure regulating valve is connected through a pipeline, the second manual pressure regulating valve is connected with the second gas storage tank through a pipeline, and the second gas storage tank and the pressure indicator are connected through a pipeline. The pressure indicator is connected to the temperature indicator through a pipeline, the temperature indicator is connected to the flow indicator through a pipeline, and the flow indicator is connected to the mass flow controller through a pipeline The mass flow controller is connected to the second solenoid valve through a pipeline, and the second solenoid valve is connected to the catalytic converter through a pipeline.
其中，所述质量流量控制器与用于SBC循环的催化器补气控制系统电连接。Wherein, the mass flow controller is electrically connected with the catalytic converter gas supply control system for the SBC cycle.
具体地，所述管路为不锈钢管，所述不锈钢管的外径为25mm。Specifically, the pipeline is a stainless steel pipe, and the outer diameter of the stainless steel pipe is 25 mm.
进一步地，所述第一电磁阀和所述第二电磁阀均为电控开关阀。Further, both the first solenoid valve and the second solenoid valve are electronically controlled switching valves.
优选地，所述压力指示计为压力表；所述温度指示计为温度表；所述流量指示计为流量表。Preferably, the pressure indicator is a pressure gauge; the temperature indicator is a thermometer; and the flow indicator is a flow meter.
相对于现有技术，本发明所述的用于SBC循环的催化器补气设备具有以下优势：Compared with the prior art, the catalytic converter gas supply equipment for SBC circulation according to the present invention has the following advantages:
本发明提供的用于SBC循环的催化器补气设备中，包括：空气存储装置、空气流量控制装置和辅助调节装置；其中，空气存储装置可以包括第一储气罐和第二储气罐；空气流量控制装置可以包括压力指示计、温度指示计、流量指示计和质量流量控制器；辅助调节装置可以包括第一电磁阀、第一手动调压阀、第二手动调压阀和第二电磁阀。具体装配时，可以通过管路依次将压缩空气源、第一电磁阀、第一手动调压阀、第一储气罐、第二手动调压阀、第二储气罐、压力指示计、温度指示计、流量指示计、质量流量控制器、第二电磁阀和催化器顺序连接；进一步地，空气流量控制装置能够对空气输出流量进行控制，并根据压力、温度对空气输出流量进行修正。由此分析可知，本发明提供的用于SBC循环的催化器补气设备，能够根据不同的发动机排气量，在稳定运转的工况下，周期性地为标准台架提供所需量的空气补给；并且用于SBC循环的催化器补气设备，一方面能够保证空气输出流量可根据温度压力变化而进行修正，以使空气输出流量的实际量与设定量一致，另一方面可通过宽域氧传感器的信号对因发动机燃烧过程引起的变化而进行修正，以保证补给的空气中的氧气量为废气总量的3％±0.1％范围之内。因此，本发明提供的用于SBC循环的催化器补气设备，能够提高用于SBC循环的催化器补气控制系统中每循环的补气量的重复性，并且还能够保证实际空燃比与标准法规要求的空燃比相一致。The catalytic converter gas supply equipment for the SBC cycle provided by the present invention includes: an air storage device, an air flow control device and an auxiliary regulating device; wherein the air storage device may include a first air storage tank and a second air storage tank; The air flow control device may include a pressure indicator, a temperature indicator, a flow indicator and a mass flow controller; the auxiliary adjustment device may include a first solenoid valve, a first manual pressure regulating valve, a second manual pressure regulating valve and a second The electromagnetic valve. During specific assembly, the compressed air source, the first solenoid valve, the first manual pressure regulating valve, the first air storage tank, the second manual pressure regulating valve, the second air storage tank, the pressure indicator, the The temperature indicator, the flow indicator, the mass flow controller, the second solenoid valve and the catalytic converter are sequentially connected; further, the air flow control device can control the air output flow, and correct the air output flow according to the pressure and temperature. From this analysis, it can be seen that the catalytic converter air supply equipment for SBC cycle provided by the present invention can periodically provide the required amount of air for the standard bench under stable operating conditions according to different engine displacements supply; and the catalytic converter air supply equipment used for SBC cycle, on the one hand, can ensure that the air output flow can be corrected according to the change of temperature and pressure, so that the actual amount of air output flow is consistent with the set amount, on the other hand, it can be adjusted through a wide range The signal of the domain oxygen sensor is corrected for changes caused by the combustion process of the engine to ensure that the oxygen content in the supplementary air is within the range of 3% ± 0.1% of the total exhaust gas. Therefore, the catalytic converter air supply equipment for SBC cycle provided by the present invention can improve the repeatability of the air supply amount per cycle in the catalytic converter air supply control system for SBC cycle, and can also ensure that the actual air-fuel ratio is consistent with the standard regulations The required air-fuel ratio is the same.
本发明还提供一种用于SBC循环的催化器补气控制系统，该用于SBC循环的催化器补气控制系统中包括有如上述任一项所述的用于SBC循环的催化器补气设备；该用于SBC循环的催化器补气控制系统中还包括：控制装置，所述控制装置能够通过输入初始状态时发动机的进气流量和燃料流量，计算并设置循环中空气喷射的初始流量；信号采集装置，所述信号采集装置能够接收发动机的加浓喷油起止时刻的开关量信号作为空气喷射的触发信号；所述信号采集装置能够实时采集空燃比并与标准空燃比进行比较，且能够与所述质量流量控制器共同组成负反馈闭环控制；通讯装置，所述通讯装置能够依照所述质量流量控制器所指定的通讯协议，通过串口通讯的方式对所述质量流量控制器进行实时通讯；所述通讯装置能够发送所述质量流量控制器的输出指令，以及反馈当前流经空气的温度值、压力值和实时流量值；装配时，所述用于SBC循环的催化器补气设备分别与所述信号采集装置和所述通讯装置连接，所述信号采集装置与所述通讯装置连接，所述通讯装置与所述控制装置连接。The present invention also provides a catalytic converter gas supply control system for SBC cycle, which includes the catalytic converter gas supply device for SBC cycle as described in any one of the above The catalytic converter gas supply control system for the SBC cycle also includes: a control device, which can calculate and set the initial flow rate of the air injection in the cycle by inputting the intake air flow and fuel flow of the engine in the initial state; A signal acquisition device, the signal acquisition device can receive the switch signal at the start and end of the enriched fuel injection of the engine as the trigger signal of the air injection; the signal acquisition device can collect the air-fuel ratio in real time and compare it with the standard air-fuel ratio, and can Together with the mass flow controller to form a negative feedback closed-loop control; communication device, the communication device can communicate with the mass flow controller in real time through serial communication in accordance with the communication protocol specified by the mass flow controller ; The communication device can send the output command of the mass flow controller, and feed back the current temperature value, pressure value and real-time flow value of the air flowing through it; It is connected with the signal acquisition device and the communication device, the signal acquisition device is connected with the communication device, and the communication device is connected with the control device.
其中，所述用于SBC循环的催化器补气控制系统，包括：显示查看装置，所述显示查看装置分别与所述控制装置和所述通讯装置连接；所述显示查看装置能够对监测量、采样量和控制量通过数值或曲线的方式进行显示；所述显示查看装置能够对采样值、控制值和计算值采取工业组态模式的动画方式实时地呈现控制过程和控制效果，并能够显示报警信息、历史数据及曲线。Wherein, the catalytic converter gas supply control system for SBC circulation includes: a display viewing device, which is connected to the control device and the communication device respectively; the display viewing device can monitor the amount, The sampling amount and the control amount are displayed in the form of numerical values or curves; the display viewing device can present the control process and control effect in real time in the animation mode of the industrial configuration mode for the sampling value, control value and calculation value, and can display the alarm Information, historical data and curves.
具体地，所述信号采集装置还能够实时采集至少两个热电偶信号值，一个所述热电偶信号值能够用于监测催化器的升温效果并在温度超限时发出过热报警，另一个所述热电偶信号值能够用于辅助监控；所述用于SBC循环的催化器补气控制系统还包括：报警装置，所述报警装置分别与所述控制装置、所述通讯装置和所述显示查看装置连接；所述报警装置能够分别设置警告上限值、报警上限值、警告下限值和报警下限值，以及上限报警处理方式和下限报警处理方式。Specifically, the signal acquisition device can also collect at least two thermocouple signal values in real time, one of the thermocouple signal values can be used to monitor the heating effect of the catalytic converter and send an overheat alarm when the temperature exceeds the limit, and the other thermocouple signal value can The even signal value can be used for auxiliary monitoring; the catalytic converter air supply control system for the SBC cycle also includes: an alarm device, which is connected with the control device, the communication device and the display viewing device respectively ; The alarm device can respectively set the upper limit value of warning, the upper limit value of alarm, the lower limit value of warning and the lower limit value of alarm, as well as the upper limit alarm processing mode and the lower limit alarm processing mode.
进一步地，所述用于SBC循环的催化器补气控制系统，包括：历史记录存储装置，所述历史记录存储装置分别与所述控制装置、所述通讯装置和所述报警装置连接；所述历史记录存储装置能够对所述监测量、所述采样量、所述控制量、以及所述采样值、所述控制值和所述计算值进行储存。Further, the catalytic converter air supply control system for SBC cycle includes: a historical record storage device, the historical record storage device is respectively connected with the control device, the communication device and the alarm device; The historical record storage device can store the monitored quantity, the sampled quantity, the controlled quantity, and the sampled value, the controlled value and the calculated value.
优选地，所述用于SBC循环的催化器补气控制系统，包括：授权装置，所述授权装置与所述控制装置连接；所述授权装置能够通过机器码和授权码的形式对所述用于SBC循环的催化器补气控制系统进行验证授权。Preferably, the catalytic converter air supply control system for SBC cycle includes: an authorization device connected to the control device; Validation authorization is performed on the catalytic converter air charge control system of the SBC cycle.
相对于现有技术，本发明所述的用于SBC循环的催化器补气控制系统具有以下优势：Compared with the prior art, the catalytic converter air supply control system for SBC circulation according to the present invention has the following advantages:
本发明提供的用于SBC循环的催化器补气控制系统中，包括：用于SBC循环的催化器补气设备、以及控制装置、信号采集装置和通讯装置。该控制装置能够通过输入初始状态时发动机的进气流量和燃料流量，计算并设置循环中空气喷射的初始流量；该信号采集装置能够接收发动机的加浓喷油起止时刻的开关量信号作为空气喷射的触发信号；该信号采集装置还能够实时采集空燃比并与标准空燃比进行比较，且能够与质量流量控制器共同组成负反馈闭环控制；该通讯装置能够依照质量流量控制器所指定的通讯协议，通过串口通讯的方式对质量流量控制器进行实时通讯；该通讯装置还能够发送质量流量控制器的输出指令，以及反馈当前流经空气的温度值、压力值和实时流量值。由此分析可知，本发明提供的用于SBC循环的催化器补气控制系统中，由于使用高精度的质量流量控制器对空气补气量进行精确控制，且控制装置中自带对介质温度、压力波动进行补偿的算法模块及功能模块，从而可以满足每循环中对空气补气量的精度要求，进而能够有效消除外界扰动对空燃比的影响；同时，信号采集装置可以对每循环空气补气后的空燃比的结果进行监测，以随时动态调整下一循环的空气补气量，从而实现对空燃比的双闭环控制，进而能够提高用于SBC循环的催化器补气控制系统中每循环的补气量的重复性，并且还能够保证实际空燃比与标准法规要求的空燃比相一致。The catalytic converter gas supplement control system for SBC cycle provided by the present invention includes: catalytic converter gas supplement equipment for SBC cycle, a control device, a signal acquisition device and a communication device. The control device can calculate and set the initial flow of air injection in the cycle by inputting the intake air flow and fuel flow of the engine in the initial state; The trigger signal; the signal acquisition device can also collect the air-fuel ratio in real time and compare it with the standard air-fuel ratio, and can form a negative feedback closed-loop control together with the mass flow controller; the communication device can follow the communication protocol specified by the mass flow controller Real-time communication with the mass flow controller through serial communication; the communication device can also send the output command of the mass flow controller, and feedback the current temperature, pressure and real-time flow value of the air flowing through it. From this analysis, it can be seen that in the catalytic converter air supply control system for SBC cycle provided by the present invention, due to the use of high-precision mass flow controllers to accurately control the air supply volume, and the control device is equipped with a control system for medium temperature and pressure. The algorithm module and function module for compensating for fluctuations can meet the accuracy requirements of the air supply volume in each cycle, and can effectively eliminate the influence of external disturbances on the air-fuel ratio; The result of the air-fuel ratio is monitored to dynamically adjust the air supply amount of the next cycle at any time, so as to realize the double closed-loop control of the air-fuel ratio, which can improve the efficiency of the air supply amount per cycle in the catalytic converter air supply control system for the SBC cycle. Repeatability, and can also ensure that the actual air-fuel ratio is consistent with the air-fuel ratio required by the standard regulations.
附图说明Description of drawings
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.
图1为本发明实施例提供的用于SBC循环的催化器补气设备的结构示意简图；Fig. 1 is the schematic diagram of the structure of the catalytic converter air supply equipment for the SBC cycle provided by the embodiment of the present invention;
图2为本发明实施例提供的用于SBC循环的催化器补气控制系统的结构示意简图。Fig. 2 is a schematic structural diagram of a catalytic converter air supply control system for an SBC cycle provided by an embodiment of the present invention.
附图标记：Reference signs:
1-空气存储装置；11-第一储气罐；1-air storage device; 11-the first air storage tank;
12-第二储气罐；2-空气流量控制装置；12-the second air storage tank; 2-air flow control device;
21-压力指示计；22-温度指示计；21-pressure indicator; 22-temperature indicator;
23-流量指示计；24-质量流量控制器；23-flow indicator; 24-mass flow controller;
A-用于SBC循环的催化器补气控制3-辅助调节装置；系统；A - Catalyst charge air control for SBC cycle 3 - Auxiliary regulator; system;
31-第一电磁阀；32-第一手动调压阀；31-the first solenoid valve; 32-the first manual pressure regulating valve;
33-第二手动调压阀；34-第二电磁阀；33-the second manual pressure regulating valve; 34-the second solenoid valve;
4-压缩空气源；5-催化器；4-compressed air source; 5-catalyst;
61-空滤器；62-油滤器；61-air filter; 62-oil filter;
7-手动阀；8-单向阀；7-manual valve; 8-one-way valve;
a-用于SBC循环的催化器补气设备；b-控制装置；a- Catalytic converter air supply equipment for SBC cycle; b- Control device;
c-信号采集装置；d-通讯装置；c-signal acquisition device; d-communication device;
e-显示查看装置；f-报警装置；e-display viewing device; f-alarm device;
g-历史记录存储装置；h-授权装置。g - history storage device; h - authorization device.
具体实施方式detailed description
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
图1为本发明实施例提供的用于SBC循环的催化器补气设备的结构示意简图。Fig. 1 is a schematic structural diagram of a catalytic converter air supply device for an SBC cycle provided by an embodiment of the present invention.
如图1所示，本发明实施例提供的一种用于SBC循环的催化器补气设备，包括：空气存储装置1，该空气存储装置1可以包括第一储气罐11和第二储气罐12；空气流量控制装置2，该空气流量控制装置2可以包括压力指示计21、温度指示计22、流量指示计23和质量流量控制器24，且空气流量控制装置2能够对空气输出流量进行控制，并根据压力、温度对空气输出流量进行修正；辅助调节装置3，辅助调节装置3可以包括第一电磁阀31、第一手动调压阀32、第二手动调压阀33和第二电磁阀34；装配时，压缩空气源4可以与第一电磁阀31通过管路连接，第一电磁阀31可以与第一手动调压阀32通过管路连接，第一手动调压阀32可以与第一储气罐11通过管路连接，第一储气罐11可以与第二手动调压阀33通过管路连接，第二手动调压阀33可以与第二储气罐12通过管路连接，第二储气罐12可以与压力指示计21通过管路连接，压力指示计21可以与温度指示计22通过管路连接，温度指示计22可以与流量指示计23通过管路连接，流量指示计23可以与质量流量控制器24通过管路连接，质量流量控制器24可以与第二电磁阀34通过管路连接，第二电磁阀34可以与催化器5通过管路连接。As shown in FIG. 1 , a catalytic converter air supply device for SBC cycle provided by an embodiment of the present invention includes: an air storage device 1, which may include a first air storage tank 11 and a second air storage tank Tank 12; air flow control device 2, this air flow control device 2 can comprise pressure indicator 21, temperature indicator 22, flow indicator 23 and mass flow controller 24, and air flow control device 2 can carry out to air output flow control, and correct the air output flow according to the pressure and temperature; the auxiliary regulating device 3, the auxiliary regulating device 3 may include a first solenoid valve 31, a first manual pressure regulating valve 32, a second manual pressure regulating valve 33 and a second Solenoid valve 34; During assembly, the compressed air source 4 can be connected with the first solenoid valve 31 through pipelines, and the first solenoid valve 31 can be connected with the first manual pressure regulating valve 32 through pipelines, and the first manual pressure regulating valve 32 can be It is connected with the first gas storage tank 11 through a pipeline, and the first gas storage tank 11 can be connected with the second manual pressure regulating valve 33 through a pipeline, and the second manual pressure regulating valve 33 can be connected with the second gas storage tank 12 through a pipeline. Pipeline connection, the second gas storage tank 12 can be connected with the pressure indicator 21 through the pipeline, the pressure indicator 21 can be connected with the temperature indicator 22 through the pipeline, and the temperature indicator 22 can be connected with the flow indicator 23 through the pipeline , the flow indicator 23 can be connected with the mass flow controller 24 through the pipeline, the mass flow controller 24 can be connected with the second solenoid valve 34 through the pipeline, and the second solenoid valve 34 can be connected with the catalytic converter 5 through the pipeline.
相对于现有技术，本发明实施例所述的用于SBC循环的催化器补气设备具有以下优势：Compared with the prior art, the catalytic converter gas supply equipment for the SBC cycle described in the embodiment of the present invention has the following advantages:
本发明实施例提供的用于SBC循环的催化器补气设备中，如图1所示，包括：空气存储装置1、空气流量控制装置2和辅助调节装置3；其中，空气存储装置1可以包括第一储气罐11和第二储气罐12；空气流量控制装置2可以包括压力指示计21、温度指示计22、流量指示计23和质量流量控制器24；辅助调节装置3可以包括第一电磁阀31、第一手动调压阀32、第二手动调压阀33和第二电磁阀34。具体装配时，可以通过管路依次将压缩空气源4、第一电磁阀31、第一手动调压阀32、第一储气罐11、第二手动调压阀33、第二储气罐12、压力指示计21、温度指示计22、流量指示计23、质量流量控制器24、第二电磁阀34和催化器5顺序连接；进一步地，空气流量控制装置2能够对空气输出流量进行控制，并根据压力、温度对空气输出流量进行修正。由此分析可知，本发明实施例提供的用于SBC循环的催化器补气设备，能够根据不同的发动机排气量，在稳定运转的工况下，周期性地为标准台架提供所需量的空气补给；并且用于SBC循环的催化器补气设备，一方面能够保证空气输出流量可根据温度压力变化而进行修正，以使空气输出流量的实际量与设定量一致，另一方面可通过宽域氧传感器的信号对因发动机燃烧过程引起的变化而进行修正，以保证补给的空气中的氧气量为废气总量的3％±0.1％范围之内。因此，本发明实施例提供的用于SBC循环的催化器补气设备，能够提高用于SBC循环的催化器补气控制系统中每循环的补气量的重复性，并且还能够保证实际空燃比与标准法规要求的空燃比相一致。The catalytic converter air supply equipment for the SBC cycle provided by the embodiment of the present invention, as shown in Figure 1, includes: an air storage device 1, an air flow control device 2 and an auxiliary adjustment device 3; wherein, the air storage device 1 may include The first air storage tank 11 and the second air storage tank 12; the air flow control device 2 can include a pressure indicator 21, a temperature indicator 22, a flow indicator 23 and a mass flow controller 24; the auxiliary regulating device 3 can include a first Solenoid valve 31 , first manual pressure regulating valve 32 , second manual pressure regulating valve 33 and second solenoid valve 34 . During specific assembly, the compressed air source 4, the first electromagnetic valve 31, the first manual pressure regulating valve 32, the first air storage tank 11, the second manual pressure regulating valve 33, and the second air storage tank can be sequentially connected through the pipeline. 12. The pressure indicator 21, the temperature indicator 22, the flow indicator 23, the mass flow controller 24, the second solenoid valve 34 and the catalytic converter 5 are sequentially connected; further, the air flow control device 2 can control the air output flow , and correct the air output flow according to the pressure and temperature. From this analysis, it can be seen that the catalytic converter gas supply equipment for the SBC cycle provided by the embodiment of the present invention can periodically provide the required amount for the standard bench under stable operating conditions according to different engine displacements. air supply; and the catalytic converter air supply equipment used for SBC cycle, on the one hand, it can ensure that the air output flow can be corrected according to the change of temperature and pressure, so that the actual amount of air output flow is consistent with the set amount, on the other hand, it can The signal of the wide-area oxygen sensor is used to correct the changes caused by the combustion process of the engine, so as to ensure that the oxygen content in the supplementary air is within the range of 3% ± 0.1% of the total exhaust gas. Therefore, the catalytic converter air supply equipment for the SBC cycle provided by the embodiment of the present invention can improve the repeatability of the air supply amount per cycle in the catalytic converter air supply control system for the SBC cycle, and can also ensure that the actual air-fuel ratio and The air-fuel ratio required by the standard regulations is consistent.
其中，如图1所示，上述质量流量控制器24可以与用于SBC循环的催化器补气控制系统A电连接；并且，该用于SBC循环的催化器补气控制系统A能够用于对辅助调节装置3中的第一电磁阀31和第二电磁阀34进行控制。Wherein, as shown in FIG. 1, the above-mentioned mass flow controller 24 can be electrically connected with the catalytic converter air supply control system A for the SBC cycle; and the catalytic converter air supply control system A for the SBC cycle can be used to control the The first solenoid valve 31 and the second solenoid valve 34 in the auxiliary regulating device 3 are controlled.
实际生产制造时，上述连接各装置的管路可以优选为不锈钢管，且该不锈钢管的外径具体可以为25mm。In actual production, the above-mentioned pipelines connecting the various devices may preferably be stainless steel pipes, and the outer diameter of the stainless steel pipes may specifically be 25mm.
具体地，为了便于用于SBC循环的催化器补气控制系统A对辅助调节装置3中的第一电磁阀31和第二电磁阀34进行控制，上述第一电磁阀31和第二电磁阀34均可以为电控开关阀，从而便于用于SBC循环的催化器补气控制系统A对电控开关阀的第一电磁阀31和第二电磁阀34进行开启和关闭控制。Specifically, in order to control the first solenoid valve 31 and the second solenoid valve 34 in the auxiliary regulating device 3 in order to facilitate the catalytic converter gas supplement control system A used in the SBC cycle, the first solenoid valve 31 and the second solenoid valve 34 Both can be electronically controlled on-off valves, so that the catalytic converter gas supply control system A used in the SBC cycle can control the opening and closing of the first electromagnetic valve 31 and the second electromagnetic valve 34 of the electronically controlled on-off valve.
进一步地，上述压力指示计21可以为压力表，从而通过压力表能够确认调压后的压力是否满足要求；同时，上述温度指示计22可以为温度表，流量指示计23可以为流量表，从而能够通过温度表和流量表直观地显示补气设备的温度情况和空气输出流量的情况。Further, the above-mentioned pressure indicator 21 can be a pressure gauge, so that whether the pressure after pressure regulation meets the requirements can be confirmed by the pressure gauge; meanwhile, the above-mentioned temperature indicator 22 can be a thermometer, and the flow indicator 23 can be a flow meter, so that The temperature and air output flow of the air supply equipment can be intuitively displayed through the temperature gauge and the flow gauge.
此处需要补充说明的是，第一储气罐11和第二储气罐12可以用于存储压缩空气，以提高响应速度与气源压力、流量稳定性；第一手动调压阀32和第二手动调压阀33可以用于将补气设备压力设定为6Bar。What needs to be supplemented here is that the first air storage tank 11 and the second air storage tank 12 can be used to store compressed air to improve the response speed and air source pressure and flow stability; the first manual pressure regulating valve 32 and the second Two manual pressure regulating valves 33 can be used to set the pressure of the air supply equipment to 6Bar.
此外，如图1所示，第一手动调压阀32与第一储气罐11之间还可以依次通过管路连接有空滤器61和油滤器62，从而能够通过空滤器61和油滤器62有效地过滤空气中的杂质和机油，进而提高补气设备的整体性能；质量流量控制器24与第二电磁阀34之间还可以通过管路连接有手动阀7，从而通过该手动阀7的设置能够在相关调试时手动打开和关闭管路，以进一步提高补气设备的安全性和可靠性；第二电磁阀34与催化器5之间还可以通过管路连接有单向阀8，从而通过单向阀8的设置能够有效防止尾气回流至补气设备中，起到防止损坏质量流量控制器24的作用。In addition, as shown in FIG. 1 , an air filter 61 and an oil filter 62 may be connected sequentially through pipelines between the first manual pressure regulating valve 32 and the first air storage tank 11 , so that the air filter 61 and the oil filter 62 can pass Effectively filter impurities and engine oil in the air, and then improve the overall performance of the air supply equipment; a manual valve 7 can also be connected through a pipeline between the mass flow controller 24 and the second solenoid valve 34, so that the manual valve 7 can pass through the manual valve 7 It is set that the pipeline can be manually opened and closed during relevant debugging, so as to further improve the safety and reliability of the gas supply equipment; a check valve 8 can also be connected through the pipeline between the second solenoid valve 34 and the catalytic converter 5, so that The setting of the one-way valve 8 can effectively prevent the tail gas from flowing back into the air supply equipment, thereby preventing damage to the mass flow controller 24 .
本发明实施例提供的用于SBC循环的催化器补气设备，还具有以下优势：补气设备的稳定性强，采集的数据波动较小；整体机械结构简单，便于现场安装；成本较低，利于推广，且适用范围较大。The catalyst gas supply equipment for SBC cycle provided by the embodiment of the present invention also has the following advantages: the stability of the gas supply equipment is strong, and the fluctuation of the collected data is small; the overall mechanical structure is simple and easy to install on site; the cost is low, It is conducive to popularization and has a large scope of application.
图2为本发明实施例提供的用于SBC循环的催化器补气控制系统的结构示意简图。Fig. 2 is a schematic structural diagram of a catalytic converter air supply control system for an SBC cycle provided by an embodiment of the present invention.
如图2结合图1所示，本发明实施例提供的用于SBC循环的催化器补气控制系统，该用于SBC循环的催化器补气控制系统中可以包括有如上述任一项所述的用于SBC循环的催化器补气设备a；该用于SBC循环的催化器补气控制系统中还可以包括：控制装置b，该控制装置b能够通过输入初始状态时发动机的进气流量和燃料流量，计算并设置循环中空气喷射的初始流量；信号采集装置c，该信号采集装置c能够接收发动机的加浓喷油起止时刻的开关量信号作为空气喷射的触发信号；该信号采集装置c能够实时采集空燃比并与标准空燃比进行比较，且能够与质量流量控制器24共同组成负反馈闭环控制；通讯装置d，该通讯装置d能够依照质量流量控制器24所指定的通讯协议，通过串口通讯的方式对质量流量控制器24进行实时通讯；该通讯装置d能够发送质量流量控制器24的输出指令，以及反馈当前流经空气的温度值、压力值和实时流量值；装配时，用于SBC循环的催化器补气设备a可以分别与信号采集装置c和通讯装置d连接，该信号采集装置c可以与通讯装置d连接，通讯装置d可以与所控制装置b连接。As shown in Fig. 2 in conjunction with Fig. 1, the catalytic converter air supply control system for the SBC cycle provided by the embodiment of the present invention, the catalytic converter air supply control system for the SBC cycle may include any of the above-mentioned Catalyst air supply equipment a for SBC cycle; the catalyst air supply control system for SBC cycle may also include: control device b, which can input the intake air flow and fuel flow of the engine in the initial state flow rate, calculate and set the initial flow rate of the air injection in the cycle; the signal acquisition device c, the signal acquisition device c can receive the switch signal at the start and end moments of the enriched fuel injection of the engine as the trigger signal of the air injection; the signal acquisition device c can Collect the air-fuel ratio in real time and compare it with the standard air-fuel ratio, and can form a negative feedback closed-loop control together with the mass flow controller 24; the communication device d can communicate through the serial port according to the communication protocol specified by the mass flow controller 24 The communication mode carries out real-time communication to the mass flow controller 24; the communication device d can send the output command of the mass flow controller 24, and feedback the temperature value, pressure value and real-time flow value of the air flowing through it at present; when assembling, it is used for The catalytic converter air supply equipment a of the SBC cycle can be respectively connected with the signal collection device c and the communication device d, the signal collection device c can be connected with the communication device d, and the communication device d can be connected with the control device b.
相对于现有技术，本发明实施例所述的用于SBC循环的催化器补气控制系统具有以下优势：Compared with the prior art, the catalytic converter air supply control system for the SBC cycle described in the embodiment of the present invention has the following advantages:
本发明实施例提供的用于SBC循环的催化器补气控制系统中，如图2结合图1所示，包括：用于SBC循环的催化器补气设备a、以及控制装置b、信号采集装置c和通讯装置d。该控制装置b能够通过输入初始状态时发动机的进气流量和燃料流量，计算并设置循环中空气喷射的初始流量；该信号采集装置c能够接收发动机的加浓喷油起止时刻的开关量信号作为空气喷射的触发信号；该信号采集装置c还能够实时采集空燃比并与标准空燃比进行比较，且能够与质量流量控制器24共同组成负反馈闭环控制；该通讯装置d能够依照质量流量控制器24所指定的通讯协议，通过串口通讯的方式对质量流量控制器24进行实时通讯；该通讯装置d还能够发送质量流量控制器24的输出指令，以及反馈当前流经空气的温度值、压力值和实时流量值。由此分析可知，本发明实施例提供的用于SBC循环的催化器补气控制系统中，由于使用高精度的质量流量控制器24对空气补气量进行精确控制，且控制装置b中自带对介质温度、压力波动进行补偿的算法模块及功能模块，从而可以满足每循环中对空气补气量的精度要求，进而能够有效消除外界扰动对空燃比的影响；同时，信号采集装置c可以对每循环空气补气后的空燃比的结果进行监测，以随时动态调整下一循环的空气补气量，从而实现对空燃比的双闭环控制，进而能够提高用于SBC循环的催化器补气控制系统中每循环的补气量的重复性，并且还能够保证实际空燃比与标准法规要求的空燃比相一致。In the catalytic converter gas supply control system for the SBC cycle provided by the embodiment of the present invention, as shown in Figure 2 in conjunction with Figure 1, it includes: a catalytic converter gas supply device a for the SBC cycle, a control device b, and a signal acquisition device c and communication device d. The control device b can calculate and set the initial flow of air injection in the cycle by inputting the intake air flow and fuel flow of the engine in the initial state; the signal acquisition device c can receive the switch signal of the start and end timing of the enriched fuel injection of the engine as The trigger signal of air injection; the signal acquisition device c can also collect the air-fuel ratio in real time and compare it with the standard air-fuel ratio, and can form a negative feedback closed-loop control together with the mass flow controller 24; the communication device d can follow the mass flow controller The communication protocol designated by 24 communicates with the mass flow controller 24 in real time through serial port communication; the communication device d can also send the output command of the mass flow controller 24, and feedback the temperature value and pressure value of the air currently flowing through and real-time traffic values. From this analysis, it can be seen that in the catalytic converter air supply control system for the SBC cycle provided by the embodiment of the present invention, since the high-precision mass flow controller 24 is used to accurately control the air supply volume, and the control device b has its own control system Algorithm modules and functional modules for compensating medium temperature and pressure fluctuations, so as to meet the accuracy requirements of the air supply volume in each cycle, and effectively eliminate the influence of external disturbances on the air-fuel ratio; at the same time, the signal acquisition device c can be used for each cycle The result of the air-fuel ratio after the air supplement is monitored to dynamically adjust the air supplement volume of the next cycle at any time, so as to realize the double closed-loop control of the air-fuel ratio, and then improve the catalytic converter air supplement control system used in the SBC cycle. The repeatability of the supplementary air amount of the cycle can also ensure that the actual air-fuel ratio is consistent with the air-fuel ratio required by the standard regulations.
其中，如图2所示，本发明实施例提供的用于SBC循环的催化器补气控制系统还可以包括：分别与控制装置b和通讯装置d连接的显示查看装置e，该显示查看装置e能够对监测量、采样量和控制量通过数值或曲线的方式进行显示；并且，能够用于对采样值、控制值和计算值采取工业组态模式的动画方式实时地呈现控制过程和控制效果,并能够显示报警信息、历史数据及曲线。同时，显示查看装置e还可以对采样曲线进行局部放大、拖拽等，以进一步详尽地查看相关数据。Wherein, as shown in FIG. 2 , the catalytic converter air supply control system for SBC cycle provided by the embodiment of the present invention may also include: a display viewing device e connected to the control device b and the communication device d respectively, the display viewing device e It can display the monitoring quantity, sampling quantity and control quantity in the form of numerical value or curve; moreover, it can be used to present the control process and control effect in real time in the animation mode of industrial configuration mode for the sampling value, control value and calculation value, And can display alarm information, historical data and curves. At the same time, the display viewing device e can also partially zoom in on the sampling curve, drag and drop, etc., so as to further view relevant data in detail.
具体地，如图2所示，上述信号采集装置c还能够实时采集至少两个热电偶信号值；其中，一个热电偶信号值能够用于监测催化器5的升温效果并进行过热报警，另一个热电偶信号值能够用于辅助监控。实际应用时，用于SBC循环的催化器补气控制系统还可以包括：分别与控制装置b、通讯装置d和显示查看装置e连接的报警装置f，该报警装置f能够分别设置警告上限值、报警上限值、警告下限值和报警下限值，以及上限报警处理方式和下限报警处理方式，从而提高控制系统的可靠性。Specifically, as shown in Figure 2, the above-mentioned signal acquisition device c can also collect at least two thermocouple signal values in real time; wherein, one thermocouple signal value can be used to monitor the temperature rise effect of the catalytic converter 5 and perform an overheating alarm, and the other Thermocouple signal values can be used for auxiliary monitoring. In actual application, the catalytic converter gas supply control system for the SBC cycle may also include: an alarm device f connected to the control device b, the communication device d, and the display viewing device e respectively, and the alarm device f can set the warning upper limit value respectively , Alarm upper limit value, warning lower limit value and alarm lower limit value, as well as upper limit alarm processing method and lower limit alarm processing method, so as to improve the reliability of the control system.
进一步地，如图2所示，本发明实施例提供的用于SBC循环的催化器补气控制系统还可以包括：分别与控制装置b、通讯装置d和报警装置f连接的历史记录存储装置g，该历史记录存储装置g能够对监测量、采样量、控制量、以及采样值、控制值和计算值进行储存，例如按照至少1Hz的频率进行存储，从而便于日后对相关数据进行调阅查看。Further, as shown in FIG. 2 , the catalytic converter air supply control system for SBC cycle provided by the embodiment of the present invention may also include: a historical record storage device g connected to the control device b, the communication device d and the alarm device f respectively The historical record storage device g can store the monitored quantity, sampled quantity, controlled quantity, and sampled value, controlled value and calculated value, for example, stored at a frequency of at least 1 Hz, so that it is convenient to refer to relevant data in the future.
优选地，如图2所示，本发明实施例提供的用于SBC循环的催化器补气控制系统还可以包括：与控制装置b连接的授权装置h，该授权装置h能够通过机器码和授权码的形式对用于SBC循环的催化器补气控制系统进行授权，从而提高控制系统的安全性，防止出现未授权情况下的使用。Preferably, as shown in Fig. 2, the catalytic converter air supply control system for the SBC cycle provided by the embodiment of the present invention may further include: an authorization device h connected to the control device b, the authorization device h can pass the machine code and authorization In the form of a code, the catalytic converter air supply control system used for the SBC cycle is authorized, thereby improving the security of the control system and preventing unauthorized use.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004072.2A CN105443211B (en) | 2016-01-05 | 2016-01-05 | The catalyst converter tonifying Qi equipment and its control system circulated for SBC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004072.2A CN105443211B (en) | 2016-01-05 | 2016-01-05 | The catalyst converter tonifying Qi equipment and its control system circulated for SBC |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443211A true CN105443211A (en) | 2016-03-30 |
| CN105443211B CN105443211B (en) | 2017-10-17 |
Family
ID=55553780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610004072.2A Active CN105443211B (en) | 2016-01-05 | 2016-01-05 | The catalyst converter tonifying Qi equipment and its control system circulated for SBC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443211B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155043A (en) * | 1998-06-30 | 2000-12-05 | Siemens Aktiengesellschaft | Method for injection duration correction in an internal combustion engine having a secondary-air system |
| CN1379171A (en) * | 2001-04-02 | 2002-11-13 | 杜卡提·恩勒基公司 | Method and device for controlling discharge of harmful matter of internal combustion engine |
| US6666021B1 (en) * | 2002-07-12 | 2003-12-23 | Ford Global Technologies, Llc | Adaptive engine control for low emission vehicle starting |
| CN1920268A (en) * | 2005-08-25 | 2007-02-28 | 上海钊辉科技有限公司 | Method for lifting locomotive media reductive nitrogen oxide |
| CN202851169U (en) * | 2012-06-05 | 2013-04-03 | 张玉辉 | Engine double closed-loop controller |
| CN103573360A (en) * | 2012-07-20 | 2014-02-12 | 现代自动车株式会社 | Vehicle having system and method of diagnosing secondary air injection apparatus |
| CN205277559U (en) * | 2016-01-05 | 2016-06-01 | 北京卡达克汽车检测技术中心 | Be used for SBC endless catalyst converter tonifying qi equipment and control system thereof |
-
2016
- 2016-01-05 CN CN201610004072.2A patent/CN105443211B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155043A (en) * | 1998-06-30 | 2000-12-05 | Siemens Aktiengesellschaft | Method for injection duration correction in an internal combustion engine having a secondary-air system |
| CN1379171A (en) * | 2001-04-02 | 2002-11-13 | 杜卡提·恩勒基公司 | Method and device for controlling discharge of harmful matter of internal combustion engine |
| US6666021B1 (en) * | 2002-07-12 | 2003-12-23 | Ford Global Technologies, Llc | Adaptive engine control for low emission vehicle starting |
| CN1920268A (en) * | 2005-08-25 | 2007-02-28 | 上海钊辉科技有限公司 | Method for lifting locomotive media reductive nitrogen oxide |
| CN202851169U (en) * | 2012-06-05 | 2013-04-03 | 张玉辉 | Engine double closed-loop controller |
| CN103573360A (en) * | 2012-07-20 | 2014-02-12 | 现代自动车株式会社 | Vehicle having system and method of diagnosing secondary air injection apparatus |
| CN205277559U (en) * | 2016-01-05 | 2016-06-01 | 北京卡达克汽车检测技术中心 | Be used for SBC endless catalyst converter tonifying qi equipment and control system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105443211B (en) | 2017-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201335967Y (en) | On-line monitoring system for emission of industrial fumes and flue gases | |
| US8256307B2 (en) | Particulate sampling system and method of reducing oversampling during transients | |
| CN101988440B (en) | Method for controlling oil injection of diesel engine | |
| CN103696862A (en) | Method for realizing opening control of EGR (Exhaust Gas Recirculation) valve, device and system | |
| US20070251307A1 (en) | Particulate sampling system and method | |
| CN202693663U (en) | Exhaust gas recirculation (EGR) valve detection device of linear motor | |
| CN202548075U (en) | Automatic control type detecting device for ignition point of granular active carbon | |
| CN105443211B (en) | The catalyst converter tonifying Qi equipment and its control system circulated for SBC | |
| CN200996853Y (en) | Liquid-level gauge | |
| CN109305653A (en) | A kind of on-line monitoring petroleum vapor recovery closed-loop control system and method | |
| US7140176B2 (en) | Particulate filter regeneration method for a motor vehicle | |
| CN202900428U (en) | Device for monitoring NOx discharge capacity of exhaust gas recirculation (EGR) system of electronic control diesel engine | |
| CN205559107U (en) | Natural -gas engine gas -supply system | |
| CN104632490A (en) | Gasoline engine low-pressure electromagnetic valve type fuel injector performance detecting system | |
| CN205277559U (en) | Be used for SBC endless catalyst converter tonifying qi equipment and control system thereof | |
| CN203849234U (en) | Adsorption and desorption testing equipment of carbon tank | |
| CN106593527B (en) | Nitrogen protection tunnel pushed bat kiln atmosphere automatic regulating system | |
| CN114813137B (en) | Constant volume bomb air inlet and exhaust controllable air exchange bottle system | |
| CN110940468A (en) | Intelligent airtight detection test bed | |
| CN201635850U (en) | Motorcycle air-fuel ratio automatic calibration and on-line correction system | |
| CN108286475B (en) | Method and system for processing air inflow signal | |
| CN204831731U (en) | Turbine case subassembly leakproofness detection device | |
| CN215261852U (en) | A test device for high pressure gas supply system | |
| CN103776503A (en) | System for determining and adjusting EGR mass flow and use method thereof | |
| CN115077812A (en) | Electric vehicle controller seals detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 3, No. six, Boxing, Beijing economic and Technological Development Zone, Beijing Patentee after: BEIJING KADAKE AUTOMOTIVE TESTING TECHNOLOGY CENTER CO.,LTD. Address before: No. 3, No. six, Boxing, Beijing economic and Technological Development Zone, Beijing Patentee before: BEIJING CATARC AUTOMOBILE DETECTION TECHNOLOGY CENTER |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 100176 No.3, boxing 6th Road, Beijing Economic and Technological Development Zone, Beijing Patentee after: China Automotive Technology (Beijing) Co.,Ltd. Country or region after: China Address before: 100176 No.3, boxing 6th Road, Beijing Economic and Technological Development Zone, Beijing Patentee before: BEIJING KADAKE AUTOMOTIVE TESTING TECHNOLOGY CENTER CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |