CN111665798B - Engine front end wheel train accessory endurance test control system - Google Patents
Engine front end wheel train accessory endurance test control system Download PDFInfo
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- CN111665798B CN111665798B CN202010419975.3A CN202010419975A CN111665798B CN 111665798 B CN111665798 B CN 111665798B CN 202010419975 A CN202010419975 A CN 202010419975A CN 111665798 B CN111665798 B CN 111665798B
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- 238000012360 testing method Methods 0.000 title claims abstract description 114
- 238000012544 monitoring process Methods 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims description 21
- 238000004378 air conditioning Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000013461 design Methods 0.000 abstract description 5
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
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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
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
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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
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- Quality & Reliability (AREA)
- Automation & Control Theory (AREA)
- Testing Of Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The engine front end wheel train accessory endurance test control system comprises a controller, a system air conditioner compressor, a power steering pump, a generator, an air conditioner compressor load loading device, a power steering pump load loading device, a generator load loading device and an ambient temperature control device, wherein an engine idling state monitoring unit, an air conditioner compressor endurance test control unit in signal connection with the air conditioner compressor load loading device, a power steering pump endurance test control unit in signal connection with the power steering pump load loading device and a generator endurance test control unit in signal connection with the generator load loading device are arranged in the controller. The design not only realizes the unified, rapid and accurate test of the durability of the front-end wheel train accessories of the engine, but also does not need to occupy the resources of the engine rack.
Description
Technical Field
The invention belongs to the field of automobile engine testing, and particularly relates to a durability test control system for a front-end wheel train accessory of an engine.
Background
Various gear train accessories of a front-end gear train of an automobile engine work under the conditions of high engine compartment environment temperature and variable working load, and an endurance test is usually required to ensure the reliability of the gear train accessories at the front end of the engine. At present, in the process of durability test verification of an engine, the assessment of front-end wheel train accessories lacks a corresponding targeted bench test assessment method, other conventional durability tests are carried or the durability of the whole vehicle is often assessed, the durability assessment is single, the conditions are not strict, the period is long, and the purpose of durability assessment verification of the front-end wheel train accessories cannot be achieved; meanwhile, aiming at the developed durability test method of the engine front-end wheel train, a corresponding test control system is lacked to control each accessory loading device to operate according to the durability test method; the engine rack control system is adopted to load the front-end wheel train accessories, and the problems of long debugging period, high cost of remanufacturing the rack, long time of occupying rack resources in a durability test and the like exist. Therefore, it is necessary to develop a durability test control system for front-end wheel-train accessories of an engine, which is used for meeting the requirements of the examination test of the front-end wheel-train accessories of the engine.
Disclosure of Invention
The present invention has been made in view of the above problems occurring in the prior art, and an object of the present invention is to provide a durability test control system for an engine front end wheel-train attachment, which is capable of completing a durability test for the engine front end wheel-train attachment without occupying resources of an engine mount.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
referring to fig. 1, a durability test control system for a front-end wheel train accessory of an engine comprises a controller, a system air conditioner compressor, a power steering pump and a generator, wherein the air conditioner compressor, the power steering pump and the generator are respectively and correspondingly connected with an air conditioner compressor load loading device, a power steering pump load loading device and a generator load loading device;
the system also comprises an environment temperature control device, wherein the environment temperature control device is used for controlling the environment temperature in the test process to be 60-70 ℃;
the controller is internally provided with an engine idling state monitoring unit, an air-conditioning compressor endurance test control unit, a power-assisted steering pump endurance test control unit and a generator endurance test control unit, wherein the engine idling state monitoring unit is in signal connection with an engine, and the air-conditioning compressor endurance test control unit, the power-assisted steering pump endurance test control unit and the generator endurance test control unit are in signal connection with an air-conditioning compressor load loading device, a power-assisted steering pump load loading device and a generator load loading device respectively;
the engine idling state monitoring unit is used for monitoring that the engine is in an idling state in the endurance test process;
the air conditioner compressor endurance test control unit is used for controlling the air conditioner compressor load loading equipment to circularly load the air conditioner compressor to the maximum load and continue the operation for A seconds and stop the air conditioner compressor for A seconds until the endurance test is finished;
the power-assisted steering pump endurance test control unit is used for controlling the power-assisted steering pump load loading equipment to circularly load the power-assisted steering pump to the maximum load and continue the operations of B seconds and stopping the power-assisted steering pump for C seconds until the endurance test is finished;
the generator endurance test control unit is used for controlling the generator load loading equipment to circularly load the generator to the maximum load current of the generator for D hours and to unload the generator 4 to the small load loading current of X amperes and to continue the operation for E hours until the endurance test is finished.
The a =3B + C.
The total time of the durability test is 400-600 hours.
A signal input port of the loading equipment running state monitoring unit is connected with the air conditioner compressor load loading equipment, the power steering pump load loading equipment and the generator load loading equipment, and a signal output port of the loading equipment running state monitoring unit is connected with the air conditioner compressor load loading equipment, the power steering pump load loading equipment, the generator load loading equipment, the engine wiring harness power supply and the alarm;
the loading equipment running state monitoring unit is used for monitoring the running states of the air conditioner compressor load loading equipment, the power steering pump load loading equipment and the generator load loading equipment in real time, and if some loading equipment is abnormal, the air conditioner compressor load loading equipment, the power steering pump load loading equipment and the generator load loading equipment are controlled to stop running, and the engine wire harness power supply is controlled to be turned off and the alarm is controlled to give an alarm.
The controller is characterized in that an engine running state monitoring unit is further arranged inside the controller, a signal input port of the engine running state monitoring unit is connected with an engine crankshaft rotating speed detection device, a temperature and pressure sensor on the engine and an engine circulating water system liquid level detection device, and a signal output port of the engine running state monitoring unit is connected with an air conditioner compressor load loading device, a power steering pump load loading device, a generator load loading device, an engine wiring harness power supply and an alarm;
the engine running state monitoring unit is used for judging the running state of the engine in real time according to detection signals from the engine crankshaft rotating speed detection device, the temperature pressure sensor on the engine and the liquid level detection device of the engine circulating water system, controlling the load loading equipment of the air conditioner compressor, the load loading equipment of the power steering pump and the load loading equipment of the generator to stop running if the running of the engine is judged to be abnormal, and controlling the power supply of the engine wire harness to be turned off and the alarm to give an alarm.
The environment temperature control device is a hot air blower assembly with a temperature sensor and is positioned near the torsional vibration damper of the engine.
The generator is connected with the generator load loading equipment through a whole vehicle storage battery.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to an engine front end wheel train accessory endurance test control system which comprises an environment temperature control device, wherein an engine idling state monitoring unit, an air conditioner compressor endurance test control unit in signal connection with an air conditioner compressor load loading device, a power steering pump endurance test control unit in signal connection with the power steering pump load loading device and a generator endurance test control unit in signal connection with a generator load loading device are arranged in a controller, when the system runs, the system controls the air conditioner compressor load loading device, the power steering pump load loading device and the generator load loading device to respectively carry out circulating load increasing and decreasing tests on the air conditioner compressor, the generator and the power steering pump under the working conditions that an engine is in an idling state and the environment temperature is 60-70 ℃, the design simulates the severe running environment of engine wheel train accessories to the maximum extent, the durability of the air conditioner compressor, the power-assisted steering pump and the generator is verified at the same time in the same test environment, the speed is high, development verification time and cost are effectively saved, the test result is accurate, and meanwhile, the system does not need to occupy engine rack resources. Therefore, the invention not only realizes the uniform, rapid and accurate test of the durability of the front-end wheel train accessory of the engine, but also does not need to occupy the resources of the engine rack.
Drawings
FIG. 1 is a system block diagram of the present invention.
Fig. 2 is a schematic view of the cyclic loading and unloading of the air conditioner compressor of the present invention.
Fig. 3 is a schematic view of the cyclic load and unload of the power steering pump according to the present invention.
Fig. 4 is a schematic view of the cyclic load and load reduction of the generator according to the present invention.
In the figure, a controller 1, an engine idling state control unit 11, an air conditioner compressor endurance test control unit 12, a power steering pump endurance test control unit 13, a generator endurance test control unit 14, a loading device operation state monitoring unit 15, an engine operation state monitoring unit 16, an air conditioner compressor 2, a power steering pump 3, a generator 4, an engine 5, an air conditioner compressor load loading device 6, a power steering pump load loading device 7, a generator load loading device 8, an ambient temperature control device 9, an engine harness power supply 10, an alarm 20, an engine torsional vibration damper 30 and a whole vehicle storage battery 40.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, the durability test control system for the front-end wheel train accessories of the engine comprises a controller 1, a system air conditioner compressor 2, a power steering pump 3 and a generator 4, wherein the air conditioner compressor 2, the power steering pump 3 and the generator 4 are respectively and correspondingly connected with an air conditioner compressor load loading device 6, a power steering pump load loading device 7 and a generator load loading device 8;
the system also comprises an environment temperature control device 9, wherein the environment temperature control device 9 is used for controlling the environment temperature in the test process to be 60-70 ℃;
an engine idling state monitoring unit 11, an air-conditioning compressor endurance test control unit 12, a power-assisted steering pump endurance test control unit 13 and a generator endurance test control unit 14 are arranged inside the controller 1, the engine idling state monitoring unit 11 is in signal connection with the engine 5, and the air-conditioning compressor endurance test control unit 12, the power-assisted steering pump endurance test control unit 13 and the generator endurance test control unit 14 are in signal connection with an air-conditioning compressor load loading device 6, a power-assisted steering pump load loading device 7 and a generator load loading device 8 respectively;
the engine idling state monitoring unit 11 is used for monitoring that the engine is in an idling state in the endurance test process;
referring to fig. 2, the air conditioner compressor endurance test control unit 12 is configured to control the air conditioner compressor load applying device 6 to apply a maximum load to the air conditioner compressor 2 for a second and stop the air conditioner compressor for a second until the endurance test is finished;
referring to fig. 3, the power steering pump endurance test control unit 13 is configured to control the power steering pump load applying device 7 to cyclically perform operations of applying a maximum load to the power steering pump 3 for B seconds and stopping for C seconds until the endurance test is finished;
referring to fig. 4, the generator endurance test control unit 14 is configured to control the generator load applying device 8 to cyclically perform operations of applying a load to the generator 4 up to its maximum load current for D hours, and applying a small load current to the generator 4 down to X amperes for E hours until the endurance test is completed.
The a =3B + C.
The total time of the durability test is 400-600 hours.
A loading device running state monitoring unit 15 is further arranged inside the controller 1, a signal input port of the loading device running state monitoring unit 15 is connected with the air conditioner compressor load loading device 6, the power steering pump load loading device 7 and the generator load loading device 8, and a signal output port of the loading device running state monitoring unit 15 is connected with the air conditioner compressor load loading device 6, the power steering pump load loading device 7, the generator load loading device 8, the engine wiring harness power supply 10 and the alarm 20;
the loading device running state monitoring unit 15 is used for monitoring running states of the air conditioner compressor load loading device 6, the power steering pump load loading device 7 and the generator load loading device 8 in real time, and if some loading device is abnormal, the air conditioner compressor load loading device 6, the power steering pump load loading device 7 and the generator load loading device 8 are controlled to stop running, and the engine wiring harness power supply 10 is controlled to be turned off and the alarm 20 gives an alarm.
An engine running state monitoring unit 16 is further arranged inside the controller 1, a signal input port of the engine running state monitoring unit 16 is connected with an engine crankshaft rotating speed detection device, a temperature pressure sensor on the engine 5 and an engine circulating water system liquid level detection device, and a signal output port of the engine running state monitoring unit 17 is connected with an air conditioner compressor load loading device 6, a power steering pump load loading device 7, a generator load loading device 8, an engine wiring harness power supply 10 and an alarm 20;
the engine running state monitoring unit 16 is used for judging the running state of the engine 5 in real time according to detection signals from an engine crankshaft rotating speed detection device, a temperature pressure sensor on the engine 5 and an engine circulating water system liquid level detection device, and if the engine 5 is judged to run abnormally, controlling the air conditioner compressor load loading equipment 6, the power steering pump load loading equipment 7 and the generator load loading equipment 8 to stop running, and controlling the engine wiring harness power supply 10 to be turned off and the alarm 20 to give an alarm.
The ambient temperature control device 9 is a hot air blower assembly with a temperature sensor, which is located near the engine torsional vibration damper 30.
The generator 4 is connected with a generator load loading device 8 through a whole vehicle storage battery 40.
The principle of the invention is illustrated as follows:
the A, B, C, D, E value is determined by the engine design development target, and the total time of the endurance test is determined according to the engine design development target and the proportion of the idle running time of the engine in the design mileage of the engine.
In the invention, the determination method of the test environment temperature comprises the following steps: the vehicle runs under the maximum load under the condition of full load on a rotating hub of the whole vehicle, and the whole vehicle returns to idle speed after the temperature around a gear train is stable; and actually measuring the temperature around the wheel train accessory in the whole process, and taking the highest temperature obtained by detection as the test environment temperature.
Before the endurance test is performed, the engine 5 should select a train belt tensioner with minimum tension, a train belt with the longest length, and a torsional damper with the minimum rigidity.
Ambient temperature control device 9: the environment temperature control device adopted by the invention is an air heater assembly with a temperature sensor, and comprises an air heater and a hot air pipeline, wherein the air heater blows hot air to the engine torsional vibration damper 30 through the hot air pipeline, and the temperature sensor is arranged at the outlet of the hot air pipeline and used for controlling the temperature of the hot air blown to the engine torsional vibration damper 30.
Example 1:
referring to fig. 1, an engine front end wheel train accessory endurance test control system comprises a controller 1, a system air conditioner compressor 2, a power steering pump 3, a generator 4 and an ambient temperature control device 9, wherein the air conditioner compressor 2 and the power steering pump 3 are respectively and correspondingly connected with an air conditioner compressor load loading device 6 and a power steering pump load loading device 7, the generator 4 is connected with a generator load loading device 8 through a whole vehicle battery 40, an engine idling state monitoring unit 11, an air conditioner compressor endurance test control unit 12, a power steering pump endurance test control unit 13, a generator endurance test control unit 14, a loading device running state monitoring unit 15 and an engine running state monitoring unit 16 are arranged in the controller 1, the engine idling state monitoring unit 11 is in signal connection with an engine 5, the air-conditioning compressor endurance test control unit 12, the power-assisted steering pump endurance test control unit 13 and the generator endurance test control unit 14 are respectively in signal connection with an air-conditioning compressor load loading device 6, a power-assisted steering pump load loading device 7 and a generator load loading device 8, a signal input port of the loading device operation state monitoring unit 15 is connected with the air-conditioning compressor load loading device 6, the power-assisted steering pump load loading device 7 and the generator load loading device 8, a signal output port of the loading device operation state monitoring unit 15 is connected with the air-conditioning compressor load loading device 6, the power-assisted steering pump load loading device 7, the generator load loading device 8, an engine wiring harness power supply 10 and an alarm 20, a signal input port of the engine operation state monitoring unit 16 is connected with an engine crankshaft rotation speed detection device, The temperature and pressure sensor on the engine 5 and the liquid level detection device of the engine circulating water system are in signal connection, the signal output port of the engine running state monitoring unit 16 is connected with the air conditioner compressor load loading device 6, the power steering pump load loading device 7, the generator load loading device 8, the engine harness power supply 10 and the alarm 20, the environment temperature control device 9 is used for controlling the environment temperature in the test process to be 60-70 ℃, the engine idling state monitoring unit 11 is used for monitoring the engine to be in an idling state in the endurance test process, the air conditioner compressor endurance test control unit 12 is used for controlling the air conditioner compressor load loading device 6 to circularly load the air conditioner compressor 2 to the maximum load and continue the operation for A seconds and stop the operation for A seconds until the endurance test is finished (see figure 2), the power steering pump endurance test control unit 13 is configured to control the power steering pump load loading device 7 to cyclically perform operations of loading the power steering pump 3 to the maximum load for B seconds and stopping the power steering pump for C seconds until the endurance test is finished (see fig. 3), the generator endurance test control unit 14 is configured to control the generator load loading device 8 to cyclically perform operations of loading the generator 4 to the maximum load current thereof for D hours and unloading the generator 4 to the small load current of X amperes and continuing the endurance test for E hours until the endurance test is finished (see fig. 4), the loading device operating state monitoring unit 15 is configured to monitor the operating states of the air conditioning compressor load loading device 6, the power steering pump load loading device 7 and the generator load loading device 8 in real time, and if some loading device is abnormal, control the air conditioning compressor load loading device 6, the generator load loading device 8, The power steering pump load loading device 7 and the generator load loading device 8 stop running, and control the engine harness power supply 10 to be turned off and the alarm 20 to give an alarm, the engine running state monitoring unit 16 is used for judging the running state of the engine 5 in real time according to detection signals from the engine crankshaft rotating speed detection device, the temperature pressure sensor on the engine 5 and the liquid level detection device of the engine circulating water system, if the engine 5 is judged to run abnormally, the air-conditioning compressor load loading device 6, the power steering pump load loading device 7 and the generator load loading device 8 are controlled to stop running, the engine harness power supply 10 is controlled to be turned off and the alarm 20 gives an alarm, the environment temperature control device 9 is a hot air blower assembly with a temperature sensor, and is positioned near the engine torsional vibration damper 30, wherein A =3B + C, the total time of the durability test is 400-600 hours.
After the endurance test is finished, the present embodiment determines the respective endurance according to the performances of the air conditioner compressor 2, the power steering pump 3, and the generator 4 before and after the test and during the test, specifically:
for the air conditioner compressor 2, if abnormal sound does not occur in the test process, the system pressure is not abnormal, the refrigerator is not leaked, after the test, the wear rates of the electromagnetic clutch, the compressor and the expansion valve are all in the required range, the belt wheel of the compressor has no crack, and the coil of the electromagnetic clutch of the compressor is not burnt out, the durability of the compressor is judged to meet the requirement;
for the power steering pump 3, if the system pressure is not abnormal or leaked in the test process, after the test, the meshing surface of the flow control valve and the valve seat is well sealed, the wear rate and the spring elasticity of the safety valve are within the required range, the cavity wall of the vane pump is not worn or pulled, and the vane of the vane pump is not worn, the durability of the vane pump is judged to meet the requirement;
for the generator 4, if the stator insulation, the excitation winding and the rectifier diode are not short-circuited in the test process, after the test, the brush wear rate, the rotor deformation rate and the bearing wear rate are all in the required ranges, and the belt pulley is free of cracks, the durability of the belt pulley is judged to meet the requirements.
Claims (7)
1. The utility model provides an engine front end train annex endurance test control system, includes controller (1), system air condition compressor (2), power assisted steering pump (3), generator (4), air condition compressor (2), power assisted steering pump (3), generator (4) respectively with air condition compressor load equipment (6), power assisted steering pump load equipment (7), generator load equipment (8) correspond and are connected its characterized in that:
the system also comprises an ambient temperature control device (9), wherein the ambient temperature control device (9) is used for controlling the ambient temperature in the test process to be 60-70 ℃;
an engine idling state monitoring unit (11), an air-conditioning compressor endurance test control unit (12), a power-assisted steering pump endurance test control unit (13) and a generator endurance test control unit (14) are arranged in the controller (1), the engine idling state monitoring unit (11) is in signal connection with the engine (5), and the air-conditioning compressor endurance test control unit (12), the power-assisted steering pump endurance test control unit (13) and the generator endurance test control unit (14) are in signal connection with an air-conditioning compressor load loading device (6), a power-assisted steering pump load loading device (7) and a generator load loading device (8) respectively;
the engine idling state monitoring unit (11) is used for monitoring that the engine is in an idling state in the endurance test process;
the air conditioner compressor endurance test control unit (12) is used for controlling the air conditioner compressor load loading equipment (6) to circularly load the air conditioner compressor (2) to the maximum load for A seconds and stop the machine for A seconds until the endurance test is finished;
the power steering pump endurance test control unit (13) is used for controlling the power steering pump load loading device (7) to circularly load the power steering pump (3) to the maximum load for B seconds and stop for C seconds until the endurance test is finished;
the generator endurance test control unit (14) is used for controlling the generator load loading device (8) to circularly carry out operations of loading the generator (4) to the maximum load current thereof for D hours, and unloading the generator (4) to a small load loading current of X amperes for E hours until the endurance test is finished.
2. The engine front end wheel train accessory endurance test control system of claim 1, wherein: and A is 3B + C.
3. The engine front end wheel train accessory endurance test control system according to claim 1 or 2, wherein: the total time of the durability test is 400-600 hours.
4. The engine front end wheel train accessory endurance test control system according to claim 1 or 2, wherein:
a loading device running state monitoring unit (15) is further arranged inside the controller (1), a signal input port of the loading device running state monitoring unit (15) is connected with the air conditioner compressor load loading device (6), the power steering pump load loading device (7) and the generator load loading device (8), and a signal output port of the loading device running state monitoring unit (15) is connected with the air conditioner compressor load loading device (6), the power steering pump load loading device (7), the generator load loading device (8), the engine wiring harness power supply (10) and the alarm (20);
the loading equipment running state monitoring unit (15) is used for monitoring the running states of the air conditioner compressor load loading equipment (6), the power steering pump load loading equipment (7) and the generator load loading equipment (8) in real time, and if some loading equipment is abnormal, the air conditioner compressor load loading equipment (6), the power steering pump load loading equipment (7) and the generator load loading equipment (8) are controlled to stop running, and the engine wire harness power supply (10) is controlled to be turned off and the alarm (20) gives an alarm.
5. The engine front end wheel train accessory endurance test control system according to claim 1 or 2, wherein:
an engine running state monitoring unit (16) is further arranged inside the controller (1), a signal input port of the engine running state monitoring unit (16) is connected with an engine crankshaft rotating speed detection device, a temperature and pressure sensor on the engine (5) and an engine circulating water system liquid level detection device, and a signal output port of the engine running state monitoring unit (16) is connected with an air conditioner compressor load loading device (6), a power steering pump load loading device (7), a generator load loading device (8), an engine wiring harness power supply (10) closing device and an alarm (20);
the engine running state monitoring unit (16) is used for judging the running state of the engine (5) in real time according to detection signals from the engine crankshaft rotating speed detection device, the temperature pressure sensor on the engine (5) and the liquid level detection device of the engine circulating water system, controlling the load loading equipment (6) of the air conditioner compressor, the load loading equipment (7) of the power-assisted steering pump and the load loading equipment (8) of the generator to stop running if the running of the engine (5) is judged to be abnormal, and controlling the power supply (10) of the engine wire harness to be turned off and the alarm (20) to give an alarm.
6. The engine front end wheel train accessory endurance test control system according to claim 1 or 2, wherein: the environment temperature control device (9) is an air heater assembly with a temperature sensor and is positioned near the torsional vibration damper (30) of the engine.
7. The engine front end wheel train accessory endurance test control system according to claim 1 or 2, wherein: the generator (4) is connected with a generator load loading device (8) through a whole vehicle battery (40).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010419975.3A CN111665798B (en) | 2020-05-18 | 2020-05-18 | Engine front end wheel train accessory endurance test control system |
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| CN202010419975.3A CN111665798B (en) | 2020-05-18 | 2020-05-18 | Engine front end wheel train accessory endurance test control system |
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| CN111665798A CN111665798A (en) | 2020-09-15 |
| CN111665798B true CN111665798B (en) | 2022-04-12 |
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| KR20050102581A (en) * | 2004-07-26 | 2005-10-26 | 강수성 | Engine front accessory total loading system |
| CN101634609B (en) * | 2009-08-27 | 2011-01-05 | 安徽省芜湖仪器仪表研究所 | Endurance test device of idle motors of automobile and adjusting method thereof |
| CN202081972U (en) * | 2011-06-14 | 2011-12-21 | 江铃汽车股份有限公司 | Engine front end wheel train structure |
| CN202393595U (en) * | 2011-12-13 | 2012-08-22 | 成都嘉陵华西光学精密机械有限公司 | Comprehensive simulation experiment system test table of engine front end wheel system |
| CN203640978U (en) * | 2013-11-30 | 2014-06-11 | 奇瑞汽车股份有限公司 | Engine power-assisted steering pump loading system |
| CN103698131B (en) * | 2013-12-24 | 2016-01-20 | 潍柴动力股份有限公司 | A kind of engine accessory power rating load simulation system |
| CN104019992B (en) * | 2014-06-25 | 2017-01-11 | 安徽江淮汽车股份有限公司 | Load simulating system of engine accessory |
| JP6712576B2 (en) * | 2017-07-11 | 2020-06-24 | 日立建機株式会社 | Engine durability test equipment |
| CN209992181U (en) * | 2019-05-29 | 2020-01-24 | 中国第一汽车股份有限公司 | Accessory loading simulation system for vehicle engine |
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2020
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