CN112611575A - Equivalent measurement method for idle speed emission of snowfield motorcycle - Google Patents
Equivalent measurement method for idle speed emission of snowfield motorcycle Download PDFInfo
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- CN112611575A CN112611575A CN202011379856.6A CN202011379856A CN112611575A CN 112611575 A CN112611575 A CN 112611575A CN 202011379856 A CN202011379856 A CN 202011379856A CN 112611575 A CN112611575 A CN 112611575A
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- 238000000691 measurement method Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 86
- 238000012360 testing method Methods 0.000 claims abstract description 61
- 238000005259 measurement Methods 0.000 claims abstract description 49
- 239000010687 lubricating oil Substances 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 25
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims description 125
- 238000005070 sampling Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000003584 silencer Effects 0.000 claims description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0072—Wheeled or endless-tracked vehicles the wheels of the vehicle co-operating with rotatable rolls
- G01M17/0076—Two-wheeled vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/05—Testing internal-combustion engines by combined monitoring of two or more different engine parameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses an equivalent measurement method for idle speed emission of a snowmobile, which comprises the following steps: preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines; sample installation: selecting a sample snowfield motorcycle with the same model as the model to be detected, wherein the selected sample snowfield motorcycle needs to meet the national emission standard; the invention can simultaneously detect a plurality of snowfield motorcycles, when the temperature (the temperature of lubricating oil and the temperature of a spark plug) is consistent, the idle speed emission measurement values are also consistent, the preheating time of the snowfield motorcycle to be detected can be reduced, and the AVL Digas 4000 vehicle exhaust detection line is selected, so that the accurate emission conditions of the sample snowfield motorcycle and the snowfield motorcycle to be detected can be ensured to be obtained in time, and the errors are reduced.
Description
Technical Field
The invention relates to the technical field of emission detection, in particular to an equivalent measurement method for idle speed emission of a snowmobile.
Background
The method is characterized in that idle speed emission is measured before the snowmobile leaves a factory, and the snowmobile leaves the factory only when meeting national standards, but most of the existing measurement methods are one measurement, a large amount of time is needed for preheating, long time is needed, measurement tools are backward, real-time comparison cannot be performed, and measurement accuracy is poor.
Disclosure of Invention
The invention aims to provide an equivalent measurement method for idle speed emission of a snowmobile, which solves the problems that the existing measurement method is mostly one measurement, a large amount of time is needed for preheating, a long time is often needed, measurement tools are backward, real-time comparison cannot be performed, and the measurement accuracy is poor.
In order to achieve the purpose, the invention provides the following technical scheme: an equivalent measurement method for idle speed emission of a snowmobile comprises the following steps:
step 1: preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines;
step 2: sample installation: selecting a sample snowfield motorcycle with the same model as the model to be tested, wherein the selected sample snowfield motorcycle needs to meet the national emission standard, installing a sampling probe of a sample detection line in an exhaust pipe of the sample snowfield motorcycle, marking the installation position and the depth, installing a rotating speed sensor on an engine, taking two temperature sensors, and respectively installing the two temperature sensors in engine lubricating oil and the surface of an engine spark plug;
and step 3: laying equipment: selecting a batch of snowfield motorcycles to be tested with the same model, referring to the installation positions of the sample snowfield motorcycle detection lines, the temperature sensors and the rotating speed sensors, and respectively installing a plurality of groups of test detection lines, the temperature sensors and the rotating speed sensors on a plurality of groups of snowfield motorcycles to be tested:
and 4, step 4: and (3) sample testing: starting the sample snowfield motorcycle, carrying out rapid vehicle preheating and idling preheating according to preset speed and time, and measuring the engine speed, the engine lubricating oil temperature and the engine spark plug temperature of the sample snowfield motorcycle as standards;
and 5: and (3) idle speed test: running a plurality of groups of snowfield motorcycles to be tested while testing the samples, quickly preheating the snowfield motorcycles to be tested, converting the snowfield motorcycles to be tested into an idle speed state, carrying out idle speed preheating, then adjusting the rotating speed of an engine to be consistent with that of the sample snowfield motorcycles, and measuring the temperature of engine lubricating oil and the temperature of an engine spark plug of the snowfield motorcycles to be tested;
step 6: and (3) testing and comparing: if the temperature of the snowfield motorcycle to be measured is consistent with the standard temperature of the sample snowfield motorcycle, namely the temperature difference of lubricating oil is about +/-2 ℃, and the temperature difference of a spark plug is about +/-5 ℃, idle speed measurement is carried out on the snowfield motorcycle to be measured by using an AVL Digas 4000 vehicle exhaust detection line after preheating is finished, and an idle speed emission measurement result of the snowfield motorcycle to be measured is obtained and recorded.
Preferably, in the step 3, the sampling probe of the test detection line is attached to the exhaust pipe of the snowmobile to be tested, the rotating speed sensor is attached to the engine, the two temperature sensors are taken out, and the two temperature sensors are respectively clamped in the engine lubricating oil and the surface of the engine spark plug.
Preferably, in the step 4, the snowmobile runs for 10km at the speed of 50km/h, and the snowmobile runs for four cycles on the chassis dynamometer according to the working condition specified in GB 14622.
Preferably, in step 4, the HC and CO indicators of the probe are read as sample measurement values, the interval is 1min, and the measurement results are arithmetically averaged.
Preferably, in the step 5, the speed of rapid preheating of the snowmobile is v: v is more than or equal to 60km/h and less than or equal to 80km/h, and the rapid preheating time is t 1: t1 is more than or equal to 150s and less than or equal to 180 s.
Preferably, in step 5, the idle preheating time is t 2: t2 is more than or equal to 60s and less than or equal to 150s, and the idle speed is controlled within 1500 +/-100 r/min.
Preferably, in step 6, if the temperature of the snowmobile to be tested is not consistent with the temperature of the standard temperature, it indicates that the idle speed emission of the snowmobile to be tested is not consistent with the standard, or the snowmobile to be tested is retested after being cooled.
Preferably, in the step 6, a special sealing connecting pipe is additionally arranged at the tail of the exhaust silencer of the snowmobile to be measured, then the idling condition of the snowmobile to be measured is maintained, the measurement values of the line probes HC and CO are read, the interval is 1min, and the average value of the two measurement results is taken to obtain the idling emission measurement result of the snowmobile.
Compared with the prior art, the invention has the beneficial effects that: the invention can simultaneously detect a plurality of snowfield motorcycles, when the temperature (the temperature of lubricating oil and the temperature of a spark plug) is consistent, the idle speed emission measurement values are also consistent, the preheating time of the snowfield motorcycle to be detected can be reduced, and the AVL Digas 4000 vehicle exhaust detection line is selected, so that the accurate emission conditions of the sample snowfield motorcycle and the snowfield motorcycle to be detected can be ensured to be obtained in time, and the errors are reduced.
Detailed Description
The present invention will now be described in more detail by way of examples, which are given by way of illustration only and are not intended to limit the scope of the present invention in any way.
The invention provides a technical scheme that: an equivalent measurement method for idle speed emission of a snowmobile comprises the following steps:
step 1: preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines;
step 2: sample installation: selecting a sample snowfield motorcycle with the same model as the model to be tested, wherein the selected sample snowfield motorcycle needs to meet the national emission standard, installing a sampling probe of a sample detection line in an exhaust pipe of the sample snowfield motorcycle, marking the installation position and the depth, installing a rotating speed sensor on an engine, taking two temperature sensors, and respectively installing the two temperature sensors in engine lubricating oil and the surface of an engine spark plug;
and step 3: laying equipment: selecting a batch of snowfield motorcycles to be tested with the same model, referring to the installation positions of the sample snowfield motorcycle detection lines, the temperature sensors and the rotating speed sensors, and respectively installing a plurality of groups of test detection lines, the temperature sensors and the rotating speed sensors on a plurality of groups of snowfield motorcycles to be tested:
and 4, step 4: and (3) sample testing: starting the sample snowfield motorcycle, carrying out rapid vehicle preheating and idling preheating according to preset speed and time, and measuring the engine speed, the engine lubricating oil temperature and the engine spark plug temperature of the sample snowfield motorcycle as standards;
and 5: and (3) idle speed test: running a plurality of groups of snowfield motorcycles to be tested while testing the samples, quickly preheating the snowfield motorcycles to be tested, converting the snowfield motorcycles to be tested into an idle speed state, carrying out idle speed preheating, then adjusting the rotating speed of an engine to be consistent with that of the sample snowfield motorcycles, and measuring the temperature of engine lubricating oil and the temperature of an engine spark plug of the snowfield motorcycles to be tested;
step 6: and (3) testing and comparing: if the temperature of the snowfield motorcycle to be measured is consistent with the standard temperature of the sample snowfield motorcycle, namely the temperature difference of lubricating oil is about +/-2 ℃, and the temperature difference of a spark plug is about +/-5 ℃, idle speed measurement is carried out on the snowfield motorcycle to be measured by using an AVL Digas 4000 vehicle exhaust detection line after preheating is finished, and an idle speed emission measurement result of the snowfield motorcycle to be measured is obtained and recorded.
The first embodiment is as follows:
preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines; sample installation: selecting a sample snowfield motorcycle with the same model as the model to be tested, wherein the selected sample snowfield motorcycle needs to meet the national emission standard, installing a sampling probe of a sample detection line in an exhaust pipe of the sample snowfield motorcycle, marking the installation position and the depth, installing a rotating speed sensor on an engine, taking two temperature sensors, and respectively installing the two temperature sensors in engine lubricating oil and the surface of an engine spark plug; laying equipment: selecting a batch of snowfield motorcycles to be tested with the same model, referring to the installation positions of the sample snowfield motorcycle detection lines, the temperature sensors and the rotating speed sensors, and respectively installing a plurality of groups of test detection lines, the temperature sensors and the rotating speed sensors on a plurality of groups of snowfield motorcycles to be tested: and (3) sample testing: starting the sample snowfield motorcycle, carrying out rapid vehicle preheating and idling preheating according to preset speed and time, and measuring the engine speed, the engine lubricating oil temperature and the engine spark plug temperature of the sample snowfield motorcycle as standards; and (3) idle speed test: running a plurality of groups of snowfield motorcycles to be tested while testing the samples, quickly preheating the snowfield motorcycles to be tested, converting the snowfield motorcycles to be tested into an idle speed state, carrying out idle speed preheating, then adjusting the rotating speed of an engine to be consistent with that of the sample snowfield motorcycles, and measuring the temperature of engine lubricating oil and the temperature of an engine spark plug of the snowfield motorcycles to be tested; and (3) testing and comparing: if the temperature of the snowfield motorcycle to be measured is consistent with the standard temperature of the sample snowfield motorcycle, namely the temperature difference of lubricating oil is about +/-2 ℃, and the temperature difference of a spark plug is about +/-5 ℃, idle speed measurement is carried out on the snowfield motorcycle to be measured by using an AVL Digas 4000 vehicle exhaust detection line after preheating is finished, and an idle speed emission measurement result of the snowfield motorcycle to be measured is obtained and recorded.
Example two:
in the first embodiment, the following steps are added:
in step 3, a sampling probe of a test detection line is attached to an exhaust pipe of the snowmobile to be detected, a rotating speed sensor is attached to the engine, two temperature sensors are taken, and the two temperature sensors are clamped in lubricating oil of the engine and the surface of a spark plug of the engine respectively, so that the detection accuracy is improved.
Preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines; sample installation: selecting a sample snowfield motorcycle with the same model as the model to be tested, wherein the selected sample snowfield motorcycle needs to meet the national emission standard, installing a sampling probe of a sample detection line in an exhaust pipe of the sample snowfield motorcycle, marking the installation position and the depth, installing a rotating speed sensor on an engine, taking two temperature sensors, and respectively installing the two temperature sensors in engine lubricating oil and the surface of an engine spark plug; laying equipment: selecting a batch of snowfield motorcycles to be tested with the same model, referring to the installation positions of the sample snowfield motorcycle detection lines, the temperature sensors and the rotating speed sensors, and respectively installing a plurality of groups of test detection lines, the temperature sensors and the rotating speed sensors on a plurality of groups of snowfield motorcycles to be tested: and (3) sample testing: starting the sample snowfield motorcycle, carrying out rapid vehicle preheating and idling preheating according to preset speed and time, and measuring the engine speed, the engine lubricating oil temperature and the engine spark plug temperature of the sample snowfield motorcycle as standards; and (3) idle speed test: running a plurality of groups of snowfield motorcycles to be tested while testing the samples, quickly preheating the snowfield motorcycles to be tested, converting the snowfield motorcycles to be tested into an idle speed state, carrying out idle speed preheating, then adjusting the rotating speed of an engine to be consistent with that of the sample snowfield motorcycles, and measuring the temperature of engine lubricating oil and the temperature of an engine spark plug of the snowfield motorcycles to be tested; and (3) testing and comparing: if the temperature of the snowfield motorcycle to be measured is consistent with the standard temperature of the sample snowfield motorcycle, namely the temperature difference of lubricating oil is about +/-2 ℃, and the temperature difference of a spark plug is about +/-5 ℃, idle speed measurement is carried out on the snowfield motorcycle to be measured by using an AVL Digas 4000 vehicle exhaust detection line after preheating is finished, and an idle speed emission measurement result of the snowfield motorcycle to be measured is obtained and recorded.
Example three:
in the second embodiment, the following steps are added:
in step 4, the snowmobile runs for 10km at the speed of 50km/h, the snowmobile runs for four cycles on the chassis dynamometer according to the working condition specified by GB14622, the indication values of HC and CO of the reading probe are taken as sample measurement values, the interval is 1min, and the measurement results are the arithmetic mean value of two times, so that the detection is convenient.
Preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines; sample installation: selecting a sample snowfield motorcycle with the same model as the model to be tested, wherein the selected sample snowfield motorcycle needs to meet the national emission standard, installing a sampling probe of a sample detection line in an exhaust pipe of the sample snowfield motorcycle, marking the installation position and the depth, installing a rotating speed sensor on an engine, taking two temperature sensors, and respectively installing the two temperature sensors in engine lubricating oil and the surface of an engine spark plug; laying equipment: selecting a batch of snowfield motorcycles to be tested with the same model, referring to the installation positions of the sample snowfield motorcycle detection lines, the temperature sensors and the rotating speed sensors, and respectively installing a plurality of groups of test detection lines, the temperature sensors and the rotating speed sensors on a plurality of groups of snowfield motorcycles to be tested: and (3) sample testing: starting the sample snowfield motorcycle, carrying out rapid vehicle preheating and idling preheating according to preset speed and time, and measuring the engine speed, the engine lubricating oil temperature and the engine spark plug temperature of the sample snowfield motorcycle as standards; and (3) idle speed test: running a plurality of groups of snowfield motorcycles to be tested while testing the samples, quickly preheating the snowfield motorcycles to be tested, converting the snowfield motorcycles to be tested into an idle speed state, carrying out idle speed preheating, then adjusting the rotating speed of an engine to be consistent with that of the sample snowfield motorcycles, and measuring the temperature of engine lubricating oil and the temperature of an engine spark plug of the snowfield motorcycles to be tested; and (3) testing and comparing: if the temperature of the snowfield motorcycle to be measured is consistent with the standard temperature of the sample snowfield motorcycle, namely the temperature difference of lubricating oil is about +/-2 ℃, and the temperature difference of a spark plug is about +/-5 ℃, idle speed measurement is carried out on the snowfield motorcycle to be measured by using an AVL Digas 4000 vehicle exhaust detection line after preheating is finished, and an idle speed emission measurement result of the snowfield motorcycle to be measured is obtained and recorded.
Example four:
in the third embodiment, the following steps are added:
in step 5, the speed of the snowmobile for quick preheating is v: v is more than or equal to 60km/h and less than or equal to 80km/h, and the rapid preheating time is t 1: t1 is more than or equal to 150s and less than or equal to 180s, and the idle preheating time is t 2: t2 is more than or equal to 60s and less than or equal to 150s, and the idle speed is controlled within 1500 +/-100 r/min, so that the obtained numerical value is relatively accurate.
Preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines; sample installation: selecting a sample snowfield motorcycle with the same model as the model to be tested, wherein the selected sample snowfield motorcycle needs to meet the national emission standard, installing a sampling probe of a sample detection line in an exhaust pipe of the sample snowfield motorcycle, marking the installation position and the depth, installing a rotating speed sensor on an engine, taking two temperature sensors, and respectively installing the two temperature sensors in engine lubricating oil and the surface of an engine spark plug; laying equipment: selecting a batch of snowfield motorcycles to be tested with the same model, referring to the installation positions of the sample snowfield motorcycle detection lines, the temperature sensors and the rotating speed sensors, and respectively installing a plurality of groups of test detection lines, the temperature sensors and the rotating speed sensors on a plurality of groups of snowfield motorcycles to be tested: and (3) sample testing: starting the sample snowfield motorcycle, carrying out rapid vehicle preheating and idling preheating according to preset speed and time, and measuring the engine speed, the engine lubricating oil temperature and the engine spark plug temperature of the sample snowfield motorcycle as standards; and (3) idle speed test: running a plurality of groups of snowfield motorcycles to be tested while testing the samples, quickly preheating the snowfield motorcycles to be tested, converting the snowfield motorcycles to be tested into an idle speed state, carrying out idle speed preheating, then adjusting the rotating speed of an engine to be consistent with that of the sample snowfield motorcycles, and measuring the temperature of engine lubricating oil and the temperature of an engine spark plug of the snowfield motorcycles to be tested; and (3) testing and comparing: if the temperature of the snowfield motorcycle to be measured is consistent with the standard temperature of the sample snowfield motorcycle, namely the temperature difference of lubricating oil is about +/-2 ℃, and the temperature difference of a spark plug is about +/-5 ℃, idle speed measurement is carried out on the snowfield motorcycle to be measured by using an AVL Digas 4000 vehicle exhaust detection line after preheating is finished, and an idle speed emission measurement result of the snowfield motorcycle to be measured is obtained and recorded.
Example five:
in the fourth example, the following steps were added:
in step 6, if the temperature of the snowmobile to be measured is not consistent with the temperature of the standard temperature, the idle speed emission of the snowmobile to be measured is not consistent with the standard, or the snowmobile to be measured is retested after being cooled, a special sealing connecting pipe is additionally arranged at the tail of an exhaust muffler of the snowmobile to be measured, then the idle speed working condition of the snowmobile to be measured is maintained, the measurement values of the line probes HC and CO are read, the interval is 1min, the average value of the two measurement results is taken, the idle speed emission measurement result of the snowmobile is obtained, and the accurate idle speed emission measurement result can be obtained.
Preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines; sample installation: selecting a sample snowfield motorcycle with the same model as the model to be tested, wherein the selected sample snowfield motorcycle needs to meet the national emission standard, installing a sampling probe of a sample detection line in an exhaust pipe of the sample snowfield motorcycle, marking the installation position and the depth, installing a rotating speed sensor on an engine, taking two temperature sensors, and respectively installing the two temperature sensors in engine lubricating oil and the surface of an engine spark plug; laying equipment: selecting a batch of snowfield motorcycles to be tested with the same model, referring to the installation positions of the sample snowfield motorcycle detection lines, the temperature sensors and the rotating speed sensors, and respectively installing a plurality of groups of test detection lines, the temperature sensors and the rotating speed sensors on a plurality of groups of snowfield motorcycles to be tested: and (3) sample testing: starting the sample snowfield motorcycle, carrying out rapid vehicle preheating and idling preheating according to preset speed and time, and measuring the engine speed, the engine lubricating oil temperature and the engine spark plug temperature of the sample snowfield motorcycle as standards; and (3) idle speed test: running a plurality of groups of snowfield motorcycles to be tested while testing the samples, quickly preheating the snowfield motorcycles to be tested, converting the snowfield motorcycles to be tested into an idle speed state, carrying out idle speed preheating, then adjusting the rotating speed of an engine to be consistent with that of the sample snowfield motorcycles, and measuring the temperature of engine lubricating oil and the temperature of an engine spark plug of the snowfield motorcycles to be tested; and (3) testing and comparing: if the temperature of the snowfield motorcycle to be measured is consistent with the standard temperature of the sample snowfield motorcycle, namely the temperature difference of lubricating oil is about +/-2 ℃, and the temperature difference of a spark plug is about +/-5 ℃, idle speed measurement is carried out on the snowfield motorcycle to be measured by using an AVL Digas 4000 vehicle exhaust detection line after preheating is finished, and an idle speed emission measurement result of the snowfield motorcycle to be measured is obtained and recorded.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An equivalent measurement method for idle speed emission of a snowmobile is characterized in that: the method comprises the following steps:
step 1: preparation of measurement: selecting a group of sample detection lines, a plurality of groups of test detection lines, a plurality of temperature sensors and a plurality of rotating speed sensors, wherein the sample detection lines and the test detection lines are AVL Digas 4000 vehicle exhaust detection lines;
step 2: sample installation: selecting a sample snowfield motorcycle with the same model as the model to be tested, wherein the selected sample snowfield motorcycle needs to meet the national emission standard, installing a sampling probe of a sample detection line in an exhaust pipe of the sample snowfield motorcycle, marking the installation position and the depth, installing a rotating speed sensor on an engine, taking two temperature sensors, and respectively installing the two temperature sensors in engine lubricating oil and the surface of an engine spark plug;
and step 3: laying equipment: selecting a batch of snowfield motorcycles to be tested with the same model, referring to the installation positions of the sample snowfield motorcycle detection lines, the temperature sensors and the rotating speed sensors, and respectively installing a plurality of groups of test detection lines, the temperature sensors and the rotating speed sensors on a plurality of groups of snowfield motorcycles to be tested:
and 4, step 4: and (3) sample testing: starting the sample snowfield motorcycle, carrying out rapid vehicle preheating and idling preheating according to preset speed and time, and measuring the engine speed, the engine lubricating oil temperature and the engine spark plug temperature of the sample snowfield motorcycle as standards;
and 5: and (3) idle speed test: running a plurality of groups of snowfield motorcycles to be tested while testing the samples, quickly preheating the snowfield motorcycles to be tested, converting the snowfield motorcycles to be tested into an idle speed state, carrying out idle speed preheating, then adjusting the rotating speed of an engine to be consistent with that of the sample snowfield motorcycles, and measuring the temperature of engine lubricating oil and the temperature of an engine spark plug of the snowfield motorcycles to be tested;
step 6: and (3) testing and comparing: if the temperature of the snowfield motorcycle to be measured is consistent with the standard temperature of the sample snowfield motorcycle, namely the temperature difference of lubricating oil is about +/-2 ℃, and the temperature difference of a spark plug is about +/-5 ℃, idle speed measurement is carried out on the snowfield motorcycle to be measured by using an AVL Digas 4000 vehicle exhaust detection line after preheating is finished, and an idle speed emission measurement result of the snowfield motorcycle to be measured is obtained and recorded.
2. The equivalent measurement method of the idle discharge of the snowmobile according to claim 1, characterized in that: in the step 3, a sampling probe of the test detection line is attached to an exhaust pipe of the snowmobile to be tested, the rotating speed sensor is attached to the engine, the two temperature sensors are taken out and clamped in the lubricating oil of the engine and the surface of a spark plug of the engine respectively.
3. The equivalent measurement method of the idle discharge of the snowmobile according to claim 1, characterized in that: in the step 4, the snowmobile runs for 10km at the speed of 50km/h, and the snowmobile runs for four cycles on the chassis dynamometer according to the working condition specified by GB 14622.
4. The equivalent measurement method of the idle discharge of the snowmobile according to claim 1, characterized in that: in step 4, the indication values of HC and CO of the probe are read as sample measurement values, the interval is 1min, and the measurement results are the arithmetic mean of two times.
5. The equivalent measurement method of the idle discharge of the snowmobile according to claim 1, characterized in that: in the step 5, the speed of rapidly preheating the snowmobile is v: v is more than or equal to 60km/h and less than or equal to 80km/h, and the rapid preheating time is t 1: t1 is more than or equal to 150s and less than or equal to 180 s.
6. The equivalent measurement method of the idle discharge of the snowmobile according to claim 1, characterized in that: in step 5, the idle preheating time is t 2: t2 is more than or equal to 60s and less than or equal to 150s, and the idle speed is controlled within 1500 +/-100 r/min.
7. The equivalent measurement method of the idle discharge of the snowmobile according to claim 1, characterized in that: in the step 6, if the temperature of the snowmobile to be tested is not consistent with the temperature of the standard temperature, the idle speed emission of the snowmobile to be tested is not in accordance with the standard, or the snowmobile to be tested is retested after being cooled.
8. The equivalent measurement method of the idle discharge of the snowmobile according to claim 1, characterized in that: in the step 6, a special sealing connecting pipe is additionally arranged at the tail of the exhaust silencer of the snowfield motorcycle to be tested, then the idling condition of the snowfield motorcycle to be tested is maintained, the measurement values of the detection line probes HC and CO are read, the interval is 1min, and the average value of the two measurement results is taken to obtain the idling emission measurement result of the snowfield motorcycle.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151769A (en) * | 1995-11-29 | 1997-06-10 | Unisia Jecs Corp | Diagnostic device for idle speed control device in internal combustion engine |
| CN1588087A (en) * | 2004-07-23 | 2005-03-02 | 北京金铠星科技有限公司 | Detecting device and its detecting method for gasoline vehicle simple transient worknig condition tail gas |
| CN1588086A (en) * | 2004-09-28 | 2005-03-02 | 佛山分析仪有限公司 | Measuring device and its method for motor vehicle exhaust pollutant total amount |
| CN1789949A (en) * | 2005-12-23 | 2006-06-21 | 中国嘉陵工业股份有限公司（集团） | Matching test method for motorcycle exhaust control |
| CN1974736A (en) * | 2006-12-13 | 2007-06-06 | 任建伟 | Clean gasoline fuel |
| CN101975664A (en) * | 2010-09-27 | 2011-02-16 | 重庆建设摩托车股份有限公司 | Motorcycle idle speed emission equivalent measurement method |
-
2020
- 2020-11-30 CN CN202011379856.6A patent/CN112611575A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151769A (en) * | 1995-11-29 | 1997-06-10 | Unisia Jecs Corp | Diagnostic device for idle speed control device in internal combustion engine |
| CN1588087A (en) * | 2004-07-23 | 2005-03-02 | 北京金铠星科技有限公司 | Detecting device and its detecting method for gasoline vehicle simple transient worknig condition tail gas |
| CN1588086A (en) * | 2004-09-28 | 2005-03-02 | 佛山分析仪有限公司 | Measuring device and its method for motor vehicle exhaust pollutant total amount |
| CN1789949A (en) * | 2005-12-23 | 2006-06-21 | 中国嘉陵工业股份有限公司（集团） | Matching test method for motorcycle exhaust control |
| CN1974736A (en) * | 2006-12-13 | 2007-06-06 | 任建伟 | Clean gasoline fuel |
| CN101975664A (en) * | 2010-09-27 | 2011-02-16 | 重庆建设摩托车股份有限公司 | Motorcycle idle speed emission equivalent measurement method |
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