CN114199584A - Engine heat balance test bench - Google Patents
Engine heat balance test bench Download PDFInfo
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- CN114199584A CN114199584A CN202111447820.1A CN202111447820A CN114199584A CN 114199584 A CN114199584 A CN 114199584A CN 202111447820 A CN202111447820 A CN 202111447820A CN 114199584 A CN114199584 A CN 114199584A
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000004088 simulation Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 230000003750 conditioning effect Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010998 test method 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
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The invention relates to an engine thermal balance test bench, which comprises a fan, an air pipe, an engine compartment simulation box, an engine control unit, an air filter, a turbocharger, a three-way catalyst, an air intake intercooler, a radiator, a first water pump, a vehicle cooling fan, an air humidity adjusting system, an air heating system and a sensor assembly, wherein the air intake intercooler is arranged in the engine compartment simulation box; the engine room simulation box is provided with an air inlet grille, an air outlet grille, an air inlet and a tail gas outlet, the air inlet of the air pipe is communicated with the air outlet of the fan, and the air outlet of the air pipe is connected with the air inlet grille; the air filter, the turbocharger, the three-way catalyst, the air intake intercooler, the radiator, the first water pump, the vehicle cooling fan, the engine and the engine control unit are all arranged in an inner cavity of the engine compartment simulation box, and the air humidity adjusting system and the air heating system are all arranged in the air pipe; the sensor assembly is arranged at the air outlet of the air pipe. The invention is beneficial to the precise matching design of the radiator and the air intake intercooler.
Description
Technical Field
The invention relates to an engine, in particular to an engine thermal balance test bench.
Background
Part of heat generated by combustion of fuel in a cylinder of the engine is converted into effective work output by a crankshaft, part of the heat is discharged along with exhaust, and the rest of the heat is dissipated outside the cylinder by cooling media through the wall surface of a combustion chamber in a heat transfer mode. The conversion and transfer processes of the thermal power in the engine are very complicated and are independent and connected with each other. The utilization of the total heat of the fuel in a proportional relationship between the available work and the various energy losses is called the heat balance of the internal combustion engine. The purpose of the heat balance test is to master the fuel heat distribution relation of the engine under each working condition, which is beneficial to analyzing and improving the heat efficiency of the internal combustion engine and providing design input for matching the proper radiator and the proper air intake intercooler for the whole vehicle. In order to match the radiator and the intercooler more accurately, the heat dissipation capacity and the volume flow of the cooling medium of the radiator and the intake intercooler of the engine in the real vehicle environment need to be determined. The engine cabin environment air flow and temperature can not be simulated in the current engine heat balance testing technology, so that the heat balance data tested on an engine rack and the data tested under the actual state of a vehicle have large difference, and the accurate matching design of a radiator and an air intake intercooler can not be realized.
Disclosure of Invention
It is an object of the present invention to provide an engine thermal balance test rig to mitigate or eliminate at least one of the above mentioned technical problems.
The invention relates to an engine thermal balance test bench which comprises a fan, an air pipe, an engine compartment simulation box, an engine control unit, an air filter, a turbocharger, a three-way catalyst, an air intake intercooler, a radiator, a first water pump, a vehicle cooling fan, an air humidity adjusting system, an air heating system, an air speed sensor, a temperature sensor and a humidity sensor, wherein the engine control unit is connected with the engine control unit through the three-way catalyst;
the engine room simulation box is provided with an air inlet grille, an air outlet grille, an air inlet and a tail gas outlet, the air inlet of the air pipe is communicated with the air outlet of the fan, the air outlet of the air pipe is connected with the air inlet grille, and the air outlet of the air pipe is communicated with the inner cavity of the engine room simulation box through the air inlet grille;
the air filter, the turbocharger, the three-way catalyst, the air intake intercooler, the radiator, the first water pump, the vehicle cooling fan, the engine and the engine control unit are all arranged in an inner cavity of the engine compartment simulation box, the air intake intercooler is arranged at the rear side of the air intake grille, the radiator is arranged at the rear side of the air intake intercooler, the vehicle cooling fan is arranged at the rear side of the radiator, an air inlet of the air filter is communicated with the air inlet, an air outlet of the air filter is communicated with an air compressor air inlet of the turbocharger, an air compressor air outlet of the turbocharger is communicated with an air inlet of the air intake intercooler, an air outlet of the air intake intercooler is communicated with an air inlet of the engine, and an air outlet of the engine is communicated with a turbine air inlet of the turbocharger, a turbine air outlet of the turbocharger is communicated with an air inlet of the three-way catalyst, an air outlet of the three-way catalyst is communicated with the tail gas outlet, a water outlet of the engine is communicated with a water inlet of the radiator, a water outlet of the radiator is communicated with a water inlet of the first water pump, a water outlet of the first water pump is communicated with a water inlet of the engine, and the vehicle cooling fan is connected with the engine control unit;
the air humidity adjusting system and the air heating system are both arranged in the air pipe;
the wind speed sensor, the temperature sensor and the humidity sensor are all arranged at the air outlet of the air pipe.
As an improved scheme, the air humidity control system further comprises a water tank and a second water pump, wherein a water inlet of the second water pump is communicated with a water outlet of the water tank, and a water outlet of the second water pump is communicated with a water inlet of the air humidity control system.
As an improved scheme, the air heating system further comprises a computer and a control unit, the fan, the second water pump, the air heating system, the wind speed sensor, the temperature sensor and the humidity sensor are all connected with the control unit, and the control unit is connected with the computer.
Preferably, the air humidity conditioning system is located upstream of the air heating system, and the wind speed sensor, the temperature sensor and the humidity sensor are located downstream of the air heating system.
Preferably, the fan is a continuous variable flow fan.
Preferably, the air inlet grille is connected with the engine compartment simulation box through a detachable structure.
As a preferable scheme, the air outlet grille is an opening area adjustable grille.
Preferably, the air heating system comprises an electric heating element.
Preferably, the air humidity conditioning system includes a plurality of spray heads for spraying water.
The engine and the whole vehicle cooling system are arranged in the engine compartment simulation box, the engine compartment environment condition of the engine in the actual running of the vehicle is simulated, the engine compartment environment condition comprises the air inlet speed, the air inlet temperature and the air inlet humidity of the radiator, and the air speed and the air temperature of the engine compartment environment of the engine, so that the engine compartment environment condition in the actual vehicle state is completely restored.
Drawings
FIG. 1 is a schematic plan view of an engine thermal balance test rig according to an embodiment.
In the figure: 1-a computer; 2-a control unit; 3-a sensor assembly; 4-a second water pump; 5, a water tank; 6, a fan; 7-air pipe; 8-air humidity regulating system; 9-air heating system; 10-an air intake grille; 11-engine room simulation box; 12-an air outlet grid; 13 — an air inlet; 14-an air cleaner; 15-a turbocharger; 16-an intake intercooler; 17-a throttle valve; 18-engine intake manifold; 19-an engine block; 20-an engine exhaust manifold; 21-a three-way catalyst; 22-a first water pump; 23-a heat sink; 24-vehicle cooling fan; 25-engine control unit.
Detailed Description
The invention will be further explained with reference to the drawings.
An engine thermal balance test bench as shown in fig. 1 comprises a fan 6, an air duct 7, an engine compartment simulation box 11, an engine control unit 25, an air filter 14, a turbocharger 15, a three-way catalyst 21, an intake intercooler 16, a radiator 23, a first water pump 22, a vehicle cooling fan 24, an air humidity adjusting system 8, an air heating system 9 and a sensor assembly 3;
an air inlet grille 10, an air outlet grille 12, an air inlet 13 and a tail gas outlet are arranged on the engine room simulation box 11, an air inlet of the air pipe 7 is communicated with an air outlet of the fan 6, an air outlet of the air pipe 7 is connected with the air inlet grille 10, and an air outlet of the air pipe 7 is communicated with an inner cavity of the engine room simulation box 11 through the air inlet grille 10;
an air filter 14, a turbocharger 15, a three-way catalyst 21, an intake intercooler 16, a radiator 23, a first water pump 22, a vehicle cooling fan 24, an engine and an engine control unit 25 are all arranged in an inner cavity of the engine compartment simulation box 11, the intake intercooler 16 is arranged on the rear side of the intake grille 10, the radiator 23 is arranged on the rear side of the intake intercooler 16, the vehicle cooling fan 24 is arranged on the rear side of the radiator 23, an air inlet of the air filter 14 is communicated with an air inlet 13 through an air pipe, an air outlet of the air filter 14 is communicated with an air inlet of a compressor of the turbocharger 15 through an air pipe, an air outlet of the compressor of the turbocharger 15 is communicated with an air inlet of the intake intercooler 16 through an air pipe, an air outlet of the intake intercooler 16 is communicated with an air inlet of the engine through an air pipe, an air outlet of the engine is communicated with a turbine air inlet of the turbocharger 15 through an air pipe, a turbine air outlet of the turbocharger 15 is communicated with an air inlet of the three-way catalyst 21 through an air pipe, an air outlet of the three-way catalyst 21 is communicated with a tail gas outlet through an air pipe, a water outlet of the engine is communicated with a water inlet of the radiator 23 through a water pipe, a water outlet of the radiator 23 is communicated with a water inlet of the first water pump 22 through a water pipe, a water outlet of the first water pump 22 is communicated with a water inlet of the engine through a water pipe, and the vehicle cooling fan 24 is connected with the engine control unit 25 through a wire harness;
the air humidity adjusting system 8 and the air heating system 9 are both arranged in the air pipe 7;
sensor module 3 sets up in the gas outlet department of tuber pipe 7, and sensor module 3 includes air velocity transducer, temperature sensor and humidity transducer.
In this embodiment, the engine thermal balance test bench still includes water tank 5 and second water pump 4, and the water inlet of second water pump 4 leads to pipe and the delivery port intercommunication of water tank 5, and the delivery port of second water pump 4 leads to pipe and the water inlet intercommunication of air humidity control system 8.
In the embodiment, the air conditioner further comprises a computer 1 and a control unit 2, wherein the fan 6, the second water pump 4, the air heating system 9, the air speed sensor, the temperature sensor and the humidity sensor are all connected with the control unit 2 through a wire harness, and the control unit 2 is connected with the computer 1 through the wire harness; the control unit 2 can receive signals collected by the wind speed sensor, the temperature sensor and the humidity sensor, the control unit 2 can control the running states of the fan 6, the second water pump 4 and the air heating system 9, and the computer 1 is used for inputting boundary condition data required by the balance test into the control unit 2.
In the present embodiment, the air humidity conditioning system 8 is located upstream of the air heating system 9, and the wind speed sensor, the temperature sensor and the humidity sensor are all located downstream of the air heating system 9.
In the present embodiment, the fan 6 is a continuously variable flow fan 6.
In this embodiment, the grille shutter 10 is connected to the nacelle analog box 11 through a detachable structure, which may be a snap structure disposed between the grille shutter 10 and the nacelle analog box 11, so as to facilitate replacement of different grille shutters 10.
In this embodiment, the outlet grille 12 is an opening area adjustable grille, which is convenient for adjusting the opening area of the outlet grille 12 according to different vehicle types.
In this embodiment, the air heating system 9 comprises an electric heating element, which is energized to heat the air in the air duct 7.
In this embodiment, the air humidity adjusting system 8 includes a plurality of nozzles for spraying water, and the second water pump 4 pumps the water in the water tank 5 into the air humidity adjusting system 8, and then sprays the water into the air duct 7 through the plurality of nozzles to adjust the humidity of the air in the air duct 7.
In the present embodiment, the engine includes an engine body 19, an engine exhaust manifold 20 disposed on an exhaust side of the engine body 19, and an engine intake manifold 18 disposed on an intake side of the engine body 19, an intake port of the engine intake manifold 18 being an intake port of the engine, and an outlet port of the engine exhaust manifold 20 being an outlet port of the engine. Preferably, a throttle valve 17 is also provided between the outlet of the charge air cooler 16 and the inlet of the engine intake manifold 18.
The test procedure for the above-described engine thermal balance test rig is as follows:
the engine and the whole vehicle cooling system are arranged in an engine compartment simulation box 11, an air inlet grille 10 is arranged according to requirements, and an air outlet grille 12 is adjusted according to the opening area of an engine compartment of a real vehicle. Boundary condition data of the air speed, the temperature and the humidity outside the engine compartment, which are required by a heat balance test, are input into the computer 1 to be used as control targets, and the control unit 2 controls the fan 6, the air humidity adjusting system 8, the air heating system 9 and the second water pump 4 in real time; and the wind speed sensor, the temperature sensor and the humidity sensor acquire data in real time to perform feedback control. The air speed at the air inlet grille 10 is controlled by the fan 6, the humidity at the air inlet grille 10 is controlled by the air humidity adjusting system 8, and the temperature at the air inlet grille 10 is controlled by the air heating system 9. And then, the engine heat balance test can be carried out according to the universal characteristics and the heat damage working condition requirements to obtain heat balance data of the intake intercooler system and the engine under various working conditions, and finally, various groups of test data are collated for matching design and model selection of various subsequent radiators and intake intercooler 16.
Claims (9)
1. The engine thermal balance test bench is characterized by comprising a fan, an air pipe, an engine compartment simulation box, an engine control unit, an air filter, a turbocharger, a three-way catalyst, an air intake intercooler, a radiator, a first water pump, a vehicle cooling fan, an air humidity adjusting system, an air heating system, an air speed sensor, a temperature sensor and a humidity sensor;
the engine room simulation box is provided with an air inlet grille, an air outlet grille, an air inlet and a tail gas outlet, the air inlet of the air pipe is communicated with the air outlet of the fan, the air outlet of the air pipe is connected with the air inlet grille, and the air outlet of the air pipe is communicated with the inner cavity of the engine room simulation box through the air inlet grille;
the air filter, the turbocharger, the three-way catalyst, the air intake intercooler, the radiator, the first water pump, the vehicle cooling fan, the engine and the engine control unit are all arranged in an inner cavity of the engine compartment simulation box, the air intake intercooler is arranged at the rear side of the air intake grille, the radiator is arranged at the rear side of the air intake intercooler, the vehicle cooling fan is arranged at the rear side of the radiator, an air inlet of the air filter is communicated with the air inlet, an air outlet of the air filter is communicated with an air compressor air inlet of the turbocharger, an air compressor air outlet of the turbocharger is communicated with an air inlet of the air intake intercooler, an air outlet of the air intake intercooler is communicated with an air inlet of the engine, and an air outlet of the engine is communicated with a turbine air inlet of the turbocharger, a turbine air outlet of the turbocharger is communicated with an air inlet of the three-way catalyst, an air outlet of the three-way catalyst is communicated with the tail gas outlet, a water outlet of the engine is communicated with a water inlet of the radiator, a water outlet of the radiator is communicated with a water inlet of the first water pump, a water outlet of the first water pump is communicated with a water inlet of the engine, and the vehicle cooling fan is connected with the engine control unit;
the air humidity adjusting system and the air heating system are both arranged in the air pipe;
the wind speed sensor, the temperature sensor and the humidity sensor are all arranged at the air outlet of the air pipe.
2. The engine thermal balance test bench of claim 1, further comprising a water tank and a second water pump, a water inlet of the second water pump being in communication with a water outlet of the water tank, a water outlet of the second water pump being in communication with a water inlet of the air humidity conditioning system.
3. The engine thermal balance test rig of claim 2, further comprising a computer and a control unit, the fan, the second water pump, the air heating system, the wind speed sensor, the temperature sensor and the humidity sensor all being connected to the control unit, the control unit being connected to the computer.
4. The engine thermal balance test rig of claim 1, wherein the air humidity conditioning system is located upstream of the air heating system, and the wind speed sensor, the temperature sensor, and the humidity sensor are all located downstream of the air heating system.
5. The engine thermal balance test rig of claim 1, wherein the fan is a continuously variable flow fan.
6. The engine thermal balance test rig of claim 1, wherein the intake grill is connected to the engine compartment simulation box by a detachable structure.
7. The engine thermal balance test bench of claim 1 wherein the outlet grill is an open area adjustable grill.
8. The engine thermal balance test rig of claim 1, wherein the air heating system comprises an electrical heating element.
9. The engine thermal balance test rig of claim 1, wherein the air humidity conditioning system comprises a plurality of spray heads for spraying water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447820.1A CN114199584A (en) | 2021-11-30 | 2021-11-30 | Engine heat balance test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447820.1A CN114199584A (en) | 2021-11-30 | 2021-11-30 | Engine heat balance test bench |
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| Publication Number | Publication Date |
|---|---|
| CN114199584A true CN114199584A (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111447820.1A Pending CN114199584A (en) | 2021-11-30 | 2021-11-30 | Engine heat balance test bench |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888817A (en) * | 2015-02-13 | 2016-08-24 | 福特环球技术公司 | Turbocharger system having an air-cooled wastegate actuator |
| CN205898480U (en) * | 2016-07-14 | 2017-01-18 | 昆山台佳机电有限公司 | Integration evaporation cooling formula cold water unit performance test test bench |
| CN107356437A (en) * | 2017-06-30 | 2017-11-17 | 同济大学 | A kind of simulation system for vehicle power cabin heat management |
| CN210603912U (en) * | 2019-10-12 | 2020-05-22 | 昆山市易泰汽车科技有限公司 | Engine bench experimental device for simulating state of vehicle-mounted cooling system |
| CN210741865U (en) * | 2019-10-30 | 2020-06-12 | 东风汽车集团有限公司 | Test auxiliary device and test system for testing heat dissipation performance of whole automobile |
| CN113324766A (en) * | 2021-05-28 | 2021-08-31 | 一汽解放青岛汽车有限公司 | Simulation method and system for whole vehicle road test of intercooler |
-
2021
- 2021-11-30 CN CN202111447820.1A patent/CN114199584A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888817A (en) * | 2015-02-13 | 2016-08-24 | 福特环球技术公司 | Turbocharger system having an air-cooled wastegate actuator |
| CN205898480U (en) * | 2016-07-14 | 2017-01-18 | 昆山台佳机电有限公司 | Integration evaporation cooling formula cold water unit performance test test bench |
| CN107356437A (en) * | 2017-06-30 | 2017-11-17 | 同济大学 | A kind of simulation system for vehicle power cabin heat management |
| CN210603912U (en) * | 2019-10-12 | 2020-05-22 | 昆山市易泰汽车科技有限公司 | Engine bench experimental device for simulating state of vehicle-mounted cooling system |
| CN210741865U (en) * | 2019-10-30 | 2020-06-12 | 东风汽车集团有限公司 | Test auxiliary device and test system for testing heat dissipation performance of whole automobile |
| CN113324766A (en) * | 2021-05-28 | 2021-08-31 | 一汽解放青岛汽车有限公司 | Simulation method and system for whole vehicle road test of intercooler |
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