CN109667649B - Monitoring system and method for intelligently identifying active and passive regeneration DPF system - Google Patents
Monitoring system and method for intelligently identifying active and passive regeneration DPF system Download PDFInfo
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- CN109667649B CN109667649B CN201811609324.XA CN201811609324A CN109667649B CN 109667649 B CN109667649 B CN 109667649B CN 201811609324 A CN201811609324 A CN 201811609324A CN 109667649 B CN109667649 B CN 109667649B
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- 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
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
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- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a monitoring system and a method for intelligently identifying an active and passive regeneration DPF system, wherein the system comprises an active regeneration DPF controller, an active regeneration DPF controller and a control unit, wherein the active regeneration DPF controller is used for controlling an active regeneration DPF system which is used for controlling tail pipe post-injection to carry out DPF regeneration control; the exhaust temperature sensor is used for measuring exhaust temperatures at the DOC inlet and the DPF inlet and outlet; the exhaust pressure sensor is used for measuring the pressed pressures at the DOC inlet and the DPF inlet and outlet; the pressure difference sensor is used for measuring the pressure difference at the DOC inlet and the pressure difference at the DPF inlet and the pressure difference at the DOC outlet; the intelligent recognition DPF monitoring instrument is used for recognizing whether the current system is configured to be an active regeneration DPF system or a passive regeneration DPF system, and correspondingly recognizing and displaying the number and the type of connected sensors and signal values acquired by the sensors. The method can intelligently identify whether the current DPF configuration is an active regeneration DPF system or a passive regeneration DPF system, and has strong adaptability and low cost.
Description
Technical Field
The invention relates to the technical field of passive regeneration DPF monitoring, in particular to a monitoring system and a monitoring method for intelligently identifying an active and passive regeneration DPF system.
Background
A Particulate trap (DPF) system is a ceramic Filter installed in the exhaust system of a Diesel engine that traps Particulate emissions before they enter the atmosphere. For a pure passive regeneration DPF system, the temperature and pressure difference of the DPF are critical factors, and real-time monitoring is required to prevent the exhaust gas from being over-pressurized to cause system damage. At present, the competition in the post-processing market modified by vehicles is intensified, the system is accelerated to develop a new rhythm, and higher requirements are provided for the systematic coordination capacity of the whole chain from research, development, production and sale to service. According to the configuration difference of aftertreatment system, the customer has proposed different control, and the DPF instrument can't discern quantity and the type of connection sensor, and different passive regeneration DPF systems need dispose different display instrument, how intelligent recognition passive regeneration DPF monitoring system, better more quick meeting customer's requirement has become the important index that the customer appraised each producer, awaits the solution urgently.
Disclosure of Invention
The present invention is directed to solving the problems set forth above in the background section by a monitoring system and method that intelligently identifies active and passive regeneration DPF systems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a monitoring system for intelligently identifying active and passive regeneration DPF systems, the system comprising: the system comprises an active regeneration DPF controller, an intelligent recognition DPF monitoring instrument, an exhaust temperature sensor, an exhaust pressure sensor, a differential pressure sensor and a connecting wire harness; the active regeneration DPF controller is used for controlling an active regeneration DPF system which controls tail pipe post-injection to carry out DPF regeneration control; the exhaust temperature sensors are used for measuring exhaust temperatures at the DOC inlet, the DPF inlet and the DPF outlet; the exhaust pressure sensor is used for measuring the pressed pressures at the DOC inlet, the DPF inlet and the DPF outlet; the differential pressure sensor is used for measuring the differential pressure at the DOC inlet and the DOC outlet and the differential pressure at the DPF inlet and the DPF outlet; the wiring harness is used for connecting an active regeneration DPF controller, an intelligent recognition DPF monitoring instrument, an exhaust temperature sensor, an exhaust pressure sensor and a differential pressure sensor; the intelligent recognition DPF monitoring instrument is used for recognizing whether the current system is configured to be an active regeneration DPF system or a passive regeneration DPF system, and correspondingly recognizing and displaying the number and the type of connected sensors and signal values acquired by the sensors.
In particular, the smart recognition DPF monitoring meter comprises: the device comprises a voltage acquisition module, a physical signal processing module, a CAN communication module, an intelligent identification module, a display module, a data storage module and an alarm module; the voltage acquisition module is used for acquiring voltage signals of the exhaust temperature sensor, the exhaust pressure sensor and the differential pressure sensor; the physical signal processing module is used for calculating the acquired voltage signals into temperature, pressure and differential pressure physical signals; the CAN communication module is used for receiving parameters and fault information sent by the DPF controller for active regeneration; the intelligent identification module is used for identifying the types and the number of the connected sensors; the display module is used for displaying the number and the type of the connected sensors and the identified physical signal value; the data storage module is used for storing the number and the type of the sensors and the identified physical signal values; the alarm module is used for timely alarming related personnel after receiving the fault signal.
In particular, the types and the number of the exhaust temperature sensors, the exhaust pressure sensors and the differential pressure sensors are selected according to configuration requirements.
In particular, the alarm module is specifically configured to: when the current system is configured as a passive regeneration DPF system, alarming is carried out on sensor removal, short circuit, overlarge pressure and overlarge pressure difference; when the current system is configured as an active regeneration DPF system, fault information sent by the active regeneration DPF controller is received, and fault prompt and alarm are carried out.
Based on the monitoring system for intelligently identifying the active and passive regeneration DPF system, the invention also discloses a monitoring method for intelligently identifying the active and passive regeneration DPF system, which comprises the following steps:
s101, connecting a required sensor, an active regeneration DPF controller and an intelligent identification DPF monitoring instrument to a wiring harness according to requirements;
s102, after the system is powered on, starting to acquire data on the CAN bus;
s103, the intelligent identification module identifies whether the current system configuration is an active regeneration DPF system according to data sent by the CAN communication module, and if not, the current system configuration is determined to be a passive regeneration DPF system;
s104, if the intelligent identification module identifies that the current system is configured as a passive regeneration DPF system, the voltage acquisition module starts to acquire voltage signals of each sensor; the physical signal processing module calculates physical signal values of all sensors connected to the wiring harness according to the voltage signals;
s105, the display module displays the data received by the CAN communication module or the calculated parameter value;
s106, the data storage module stores the identified DPF monitoring system types, the number and the types of the sensors and corresponding physical signal values;
and S107, the alarm module alarms related personnel in real time after receiving the fault signal.
Specifically, the step S103 includes: the intelligent identification module identifies whether the active regeneration DPF controller is accessed, namely whether the current system configuration is an active regeneration DPF system or not according to a message sent by the active regeneration DPF controller and sent by the CAN communication module.
In particular, the step S105 specifically includes: if the intelligent identification module identifies that the current system is configured as a passive regeneration DPF system, the parameter information calculated by the physical signal processing module is displayed by the display module; if the intelligent identification module identifies that the current system is configured as an active regeneration DPF system, the message information sent by the CAN communication module is displayed.
In particular, the step S107 specifically includes: when the current system is configured as a passive regeneration DPF system, the alarm module alarms removal, short circuit, overlarge pressure and overlarge pressure difference of the sensor; when the current system is configured as an active regeneration DPF system, the alarm module receives fault information sent by the active regeneration DPF controller and carries out fault prompt and alarm.
The monitoring system and the method for intelligently identifying the active and passive regeneration DPF system can intelligently identify whether the current DPF configuration is the active regeneration DPF system or the passive regeneration DPF system, replace the scheme that the traditional active regeneration DPF system is provided with one display instrument and the passive regeneration DPF system is provided with one display instrument, and have the advantages of stronger adaptability, higher reaction speed and lower cost.
Drawings
FIG. 1 is a schematic diagram of a monitoring system for intelligently recognizing an active and passive regeneration DPF system according to the present invention;
FIG. 2 is a block diagram of an intelligent DPF identification monitoring instrument according to the present invention;
FIG. 3 is a flow chart of a monitoring method for intelligently recognizing an active and passive regeneration DPF system according to the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a monitoring system for intelligently recognizing an active and passive regeneration DPF system according to the present invention.
The monitoring system for intelligently identifying the active and passive regeneration DPF system in the embodiment specifically comprises: the system comprises an active regeneration DPF controller, an intelligent recognition DPF monitoring instrument, an exhaust temperature sensor, an exhaust pressure sensor, a differential pressure sensor and a connecting wire harness; the active regeneration DPF controller is used for controlling an active regeneration DPF system which controls tail pipe post-injection to carry out DPF regeneration control; the exhaust temperature sensors are used for measuring exhaust temperatures at the DOC inlet, the DPF inlet and the DPF outlet; the exhaust pressure sensor is used for measuring the pressed pressures at the DOC inlet, the DPF inlet and the DPF outlet; the differential pressure sensor is used for measuring the differential pressure at the DOC inlet and the DOC outlet and the differential pressure at the DPF inlet and the DPF outlet; the wiring harness is used for connecting an active regeneration DPF controller, an intelligent recognition DPF monitoring instrument, an exhaust temperature sensor, an exhaust pressure sensor and a differential pressure sensor; the intelligent recognition DPF monitoring instrument is used for recognizing whether the current system is configured to be an active regeneration DPF system or a passive regeneration DPF system, and correspondingly recognizing and displaying the number and the type of connected sensors and signal values acquired by the sensors. It should be noted that there is only an active regeneration DPF controller in an active regeneration DPF system, and there is no active regeneration DPF controller in a passive regeneration DPF system.
As shown in fig. 2, the intelligent recognition DPF monitoring instrument in this embodiment includes: the device comprises a voltage acquisition module, a physical signal processing module, a CAN communication module, an intelligent identification module, a display module, a data storage module and an alarm module; the voltage acquisition module is used for acquiring voltage signals of the exhaust temperature sensor, the exhaust pressure sensor and the differential pressure sensor; the physical signal processing module is used for calculating the acquired voltage signals into temperature, pressure and differential pressure physical signals; the CAN communication module is used for receiving parameters and fault information sent by the DPF controller for active regeneration; the intelligent identification module is used for identifying whether the current system is configured to be an active regeneration DPF system or a passive regeneration DPF system and identifying the type and the number of connected sensors; the display module is used for displaying the number and the type of the connected sensors and the identified physical signal value; the data storage module is used for storing the number and the types of the sensors and the identified physical signal values so as to prevent data loss after the system is powered off; the alarm module is used for timely alarming related personnel after receiving the fault signal.
The exhaust temperature sensor comprises a DOC inlet temperature sensor, a DPF inlet temperature sensor and a DPF outlet temperature sensor; the exhaust pressure sensor includes: a DOC inlet pressure sensor, a DPF inlet pressure sensor and a DPF outlet pressure sensor; the differential pressure sensor includes: in actual use, the number and the type of the sensors are different, and in this embodiment, the types and the number of the exhaust temperature sensor, the exhaust pressure sensor, and the differential pressure sensor are selected according to configuration requirements. In this embodiment, the alarm module is specifically configured to: when the current system is configured as a passive regeneration DPF system, alarming is carried out on sensor removal, short circuit, overlarge pressure and overlarge pressure difference; when the current system is configured as an active regeneration DPF system, fault information sent by the active regeneration DPF controller is received, and fault prompt and alarm are carried out.
As shown in fig. 3, based on the monitoring system for intelligently identifying the active and passive DPF systems, the present embodiment further provides a monitoring method for intelligently identifying the active and passive DPF systems, where the method specifically includes:
and S101, connecting a required sensor, an active regeneration DPF controller and an intelligent identification DPF monitoring instrument to a wiring harness according to requirements.
And S102, after the system is powered on, starting to acquire data on the CAN bus.
S103, the intelligent identification module identifies whether the current system configuration is an active regeneration DPF system according to data sent by the CAN communication module, and if not, the current system configuration is determined to be a passive regeneration DPF system. Specifically, the intelligent identification module identifies whether the active regeneration DPF controller is connected, that is, whether the current system configuration is the active regeneration DPF system, according to a message sent by the active regeneration DPF controller and sent by the CAN communication module.
S104, if the intelligent identification module identifies that the current system is configured as a passive regeneration DPF system, the voltage acquisition module starts to acquire voltage signals of each sensor; and the physical signal processing module calculates the physical signal value of each sensor connected to the wiring harness according to the voltage signal.
And S105, displaying the data received by the CAN communication module or the calculated parameter value by the display module. Specifically, if the intelligent identification module identifies that the current system is configured as a passive regeneration DPF system, the parameter information calculated by the physical signal processing module is displayed by the display module; if the intelligent identification module identifies that the current system is configured as an active regeneration DPF system, the message information sent by the CAN communication module is displayed.
And S106, the data storage module stores the identified DPF monitoring system types, the number and the types of the sensors and the corresponding physical signal values.
And S107, the alarm module alarms related personnel in real time after receiving the fault signal. Specifically, when the current system is configured as a passive regeneration DPF system, the alarm module alarms removal, short circuit, over-pressure and over-pressure difference of the sensor; when the current system is configured as an active regeneration DPF system, the alarm module receives fault information sent by the active regeneration DPF controller and carries out fault prompt and alarm.
The technical scheme of the invention can intelligently identify whether the current DPF configuration is an active regeneration DPF system or a passive regeneration DPF system, and replaces the scheme that the traditional active regeneration DPF system is provided with one display instrument and the passive regeneration DPF system is provided with one display instrument, so that the adaptability is stronger, the reaction speed is faster and the cost is lower.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (1)
1. A monitoring method for intelligently identifying an active and passive regeneration DPF system is characterized by comprising the following steps:
s101, connecting an exhaust temperature sensor, an exhaust pressure sensor, a differential pressure sensor, an active regeneration DPF controller and an intelligent recognition DPF monitoring instrument to a wiring harness as required;
s102, after the system is powered on, starting to acquire data on the CAN bus;
s103, the intelligent identification module identifies whether the current system configuration is an active regeneration DPF system according to data sent by the CAN communication module, and if not, the current system configuration is determined to be a passive regeneration DPF system; specifically, the intelligent identification module identifies whether the active regeneration DPF controller is accessed, that is, whether the current system configuration is an active regeneration DPF system according to a message sent by the active regeneration DPF controller and sent by the CAN communication module;
s104, if the intelligent identification module identifies that the current system is configured as a passive regeneration DPF system, the voltage acquisition module starts to acquire voltage signals of each sensor; the physical signal processing module calculates physical signal values of all sensors connected to the wiring harness according to the voltage signals;
s105, displaying the data received by the CAN communication module or the calculated parameter value by the display module; the method specifically comprises the following steps: if the intelligent identification module identifies that the current system is configured as a passive regeneration DPF system, the parameter information calculated by the physical signal processing module is displayed by the display module; if the intelligent identification module identifies that the current system is configured as an active regeneration DPF system, message information sent by the CAN communication module is displayed;
s106, the data storage module stores the identified DPF monitoring system types, the number and the types of the sensors and corresponding physical signal values;
s107, the alarm module alarms related personnel in real time after receiving the fault signal; the method specifically comprises the following steps: when the current system is configured as a passive regeneration DPF system, the alarm module alarms removal, short circuit, overlarge pressure and overlarge pressure difference of the sensor; when the current system is configured as an active regeneration DPF system, the alarm module receives fault information sent by the active regeneration DPF controller and carries out fault prompt and alarm.
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| CN101981281A (en) * | 2008-04-02 | 2011-02-23 | 马克卡车公司 | System and method for treating diesel exhaust gases |
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Denomination of invention: A monitoring system and method for intelligent identification of active and passive regeneration DPF system Effective date of registration: 20210727 Granted publication date: 20210119 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi Xishan branch Pledgor: KAILONG HIGH TECHNOLOGY Co.,Ltd. Registration number: Y2021320010276 |
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