CN204440208U - A kind of coolant temperature for engine rig test and volume control device - Google Patents
A kind of coolant temperature for engine rig test and volume control device Download PDFInfo
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- CN204440208U CN204440208U CN201520083833.9U CN201520083833U CN204440208U CN 204440208 U CN204440208 U CN 204440208U CN 201520083833 U CN201520083833 U CN 201520083833U CN 204440208 U CN204440208 U CN 204440208U
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Abstract
Engine rig test coolant temperature of the present utility model and volume control device, mainly comprise heat exchanger, expansion tank, cooling water circulation water pump, the first threeway ratio converging valve, electric heater, bypass branch, the second threeway ratio converging valve, flow sensor, temperature sensor and system controller; Wherein, system controller comprises airflow calculator, flow controller and temperature controller.On the basis of the cooling-liquid temperature adjuster of engine of conventional, add the controlling functions of coolant rate, make the liquid coolant condition of engine rig test closer to actual conditions car load using radiator of water tank, improve accuracy and the authenticity of engine rig test result.
Description
Technical field
The utility model belongs to the technical field of motor car engine rig for testing, is specifically related to a kind of coolant temperature for engine rig test and volume control device.
Background technology
In general, in engine rig test process, be difficult to directly adopt automobile water tank radiator to carry out the control of engine coolant temperature, because automobile water tank radiator is air-cooled onboard, arranges that in the space that engine testing room is limited the device of the simulation speed of a motor vehicle, wind speed is both unrealistic, also uneconomical, also very difficult and control.At present, extensive employing is with the cooling-liquid temperature adjuster of engine (replacement automobile water tank radiator) of water-cooled heat exchanger, under the thermostatic control condition of engine coolant inlet temperature or outlet temperature (this thermal load state), measure the performance parameters such as the rotating speed of engine, moment of torsion, oil consumption and discharge and evaluate permanance and reliability etc.
Although this general cooling-liquid temperature adjuster of engine is constant cooling liquid inlet temperature or outlet temperature, the situation of the specific radiator of water tank used onboard with engine is also inconsistent.On automobile, engine water pump discharge increases with engine speed and increases, but the funtcional relationship of its fluctuations in discharge is relevant with the concrete specific water resistance of a certain radiator of water tank.Because testing laboratory is different from radiator of water tank water resistance characteristic with control apparatus for general purpose engine cooling-liquid temperature adjuster, the flow difference that engine coolant changes with engine speed must be caused.If engine is under the operating mode of certain rotating speed and load, liquid coolant heat radiation power is certain, and the specific heat at constant pressure of liquid coolant is also a constant, as can be seen from following formula:
The specific heat at constant pressure x engine coolant mass rate x (engine outlet water temperature-water inflow of the engine temperature) of engine coolant heat radiation power=liquid coolant
Even if constant water inflow of the engine temperature, as long as engine cool flow quantity is different, engine outlet water temperature is also different, and vice versa.In other words, even if cooling-liquid temperature adjuster of engine is constant inflow temperature (or leaving water temperature), different due to its coolant rate and radiator of water tank, cause the difference of leaving water temperature (or inflow temperature), therefore, during this operating mode engine hot load state from be different when filling radiator of water tank on automobile.The difference of this thermal load, also result in the performance parameters such as measured engine speed, moment of torsion, oil consumption and discharge and evaluates departing from of the index such as permanance and reliability.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide and a kind ofly controls the temperature of engine coolant and the control device of flow in real time according to input liquid coolant import/export desired temperature.
For coolant temperature and the volume control device of engine rig test, mainly comprise heat exchanger 3, expansion tank 9, cooling water circulation water pump 10, first threeway ratio converging valve 11, electric heater 13, bypass branch 14, second threeway ratio converging valve 16, flow sensor 17, temperature sensor 18 and system controller 19; Wherein, system controller comprises airflow calculator, flow controller and temperature controller.First threeway ratio converging valve 11 between engine water outlet and cooling water circulation pump entrance, for the adjustment of engine cool flow quantity.On the bypass branch 14 of the second ratio converging valve 16 between engine 20 import and export, according to temperature control requirement, the proportioning of the cold water of heat interchanger and the hot water of electric heater can be regulated.
Wherein, flow sensor 17 can be positioned at water inlet or the water outlet of engine 20; Temperature sensor 18 can be positioned at water inlet or the water outlet of engine 20.
The principle that engine coolant temperature controls: the temperature controller unit in system controller 19 is according to temperature controlled target input value J, gather the temperature feedback value that engine coolant flows through temperature sensor 18, regulate the first threeway ratio adjusting valve 11, make the proportioning of the hot water of the cold water of heat interchanger 3 and electric heater 13 reach the requirement of control target temperature value.
The principle of engine coolant flow control: the flow controller unit in system controller 19 is according to the target input value I of flow control, gather the flow feedback value of engine coolant flow sensor 17, control the second threeway ratio adjusting valve 16, regulate the flowrate proportioning of cooling water circulation water pump 10 and bypass branch 14, make to reach the requirement of flow control desired value by the reflux coolant rate of engine of bypass branch 14.
Input for engine coolant design temperature and flow has following several mode:
Temperature sets: 1, by the input through keyboard desired temperature of system controller;
2, by the electric signal input temp setting value of external analog amount.
Flow set: 1, by the direct input flow rate setting value of the keyboard of system controller;
2, by the direct input flow rate setting value of the electric signal of external analog amount;
3, by the input through keyboard engine speed value of system controller, flow is conversed through inner stream flow counter.
Engine rig test liquid coolant controlled condition system of the present utility model, the basis of conventional engine cooling-liquid temperature adjuster increases engine coolant airflow calculator, coolant rate sensor, coolant rate controller, not only possesses coolant temperature controlling functions, increase the controlling functions being realized engine cool flow quantity by threeway ratio converging valve simultaneously, when making engine rig test, different engine heat load conditions when car load using radiator of water tank can be simulated well, and avoid after controlling engine inlet/outlet temperature, the phenomenon that the Inlet and outlet water temperature difference and car load test result cannot be coincide, improve accuracy and the authenticity of engine rig test result.
Accompanying drawing explanation
Fig. 1 is of the present utility model for the coolant temperature of engine rig test and the principle schematic of volume control device.
In figure: filled and interface I, the engine rotational speed signal interface J of escape hole F, the manual relief port G of expansion tank, expansion tank automatic deflation mouth H, engine peak bleeder pipe and expansion tank, the setting of engine coolant temperature desired value of A, the interface B supplying liquid coolant to engine, the interface C returning liquid coolant from engine, cooling water inlet D, coolant outlet E, liquid coolant input
1, cooling water inlet ball valve 2, cooling water filter 3, heat exchanger 4, automatic blow off valve valve air relief 5, coolant outlet ball valve 6, expansion tank liquid level gauge 7, expansion tank automatic blow off valve valve air relief 8, ball valve 9, expansion tank 10, liquid circulation water pump 11, first threeway ratio converging valve 12, coolant clarifier 13, coolant heater 14, bypass branch 15, ball valve 16, second threeway ratio converging valve 17, flow sensor 18, temperature sensor 19, system controller 20, engine
Specific embodiments
Below in conjunction with Figure of description, embodiment of the present utility model is further illustrated.
As shown in Figure 1, coolant temperature for engine rig test of the present utility model and volume control device, mainly comprise heat exchanger 3, expansion tank 9, cooling water circulation water pump 10, first threeway ratio converging valve 11, electric heater 13, bypass branch 14, second threeway ratio converging valve 16, flow sensor 17, temperature sensor 18 and system controller 19; Wherein, system controller comprises airflow calculator, flow controller and temperature controller.First threeway ratio converging valve 11 between engine water outlet and cooling water circulation pump entrance, for the adjustment of engine cool flow quantity.On the bypass branch 14 of the second ratio converging valve 16 between engine 20 import and export, according to temperature control requirement, the proportioning of the cold water of heat interchanger and the hot water of electric heater can be regulated.Flow sensor 17 is positioned at the water inlet of engine 20 everywhere; Temperature sensor 18 is positioned at the water inlet of engine 20.
Engine coolant temperature controls: the temperature controller unit in system controller 19 is according to temperature controlled target input value J, gather the temperature feedback value that engine coolant flows through temperature sensor 18, regulate the first threeway ratio adjusting valve 11, make the proportioning of the hot water of the cold water of heat interchanger 3 and electric heater 13 reach the requirement of control target temperature value.
Engine coolant flow control: the flow controller unit in system controller 19 is according to the target input value I of flow control, gather the flow feedback value of engine coolant flow sensor 17, control the second threeway ratio adjusting valve 16, regulate the flowrate proportioning of cooling water circulation water pump 10 and bypass branch 14, make to reach the requirement of flow control desired value by the reflux coolant rate of engine of bypass branch 14.
Claims (3)
1., for coolant temperature and the volume control device of engine rig test, mainly comprise heat exchanger (3), expansion tank (9), cooling water circulation water pump (10), the first threeway ratio converging valve (11), electric heater (13), bypass branch (14), the second threeway ratio converging valve (16), flow sensor (17), temperature (18) and system controller (19); Wherein, system controller comprises airflow calculator, flow controller and temperature controller, first threeway ratio converging valve (11) is between engine water outlet and cooling water circulation pump entrance, and the second ratio converging valve (16) is positioned on the bypass branch (14) between engine (20) import and export.
2. a kind of coolant temperature for engine rig test and volume control device as claimed in claim 1, is characterized in that: flow sensor (17) can be positioned at water inlet or the engine water outlet place of engine (20).
3. a kind of coolant temperature for engine rig test and volume control device as claimed in claim 1, temperature sensor (18) can be positioned at water inlet or the engine water outlet place of engine (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520083833.9U CN204440208U (en) | 2015-02-05 | 2015-02-05 | A kind of coolant temperature for engine rig test and volume control device |
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| CN201520083833.9U CN204440208U (en) | 2015-02-05 | 2015-02-05 | A kind of coolant temperature for engine rig test and volume control device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043773A (en) * | 2015-07-14 | 2015-11-11 | 中国嘉陵工业股份有限公司（集团） | Endurance enhancement test method of air-cooled and oil-cooled engines |
| CN109357159A (en) * | 2018-11-14 | 2019-02-19 | 江苏科技大学 | A kind of deep cooling supercritical fluid regasifies experimental system and working method |
| CN109425490A (en) * | 2017-08-31 | 2019-03-05 | 深圳市万斯得自动化设备有限公司 | New-energy automobile simulated testing system |
| CN109557963A (en) * | 2018-12-25 | 2019-04-02 | 苏州奥德机械有限公司 | A kind of industry simulation test control system that can be precisely controlled flow and temperature |
| CN109828176A (en) * | 2019-03-14 | 2019-05-31 | 武汉理工大学 | A kind of New energy automobile motor battery high/low temperature loop test system |
| CN109855882A (en) * | 2018-12-30 | 2019-06-07 | 苏州英特模汽车科技有限公司 | Automobile power assembly test coolant temperature control method and device |
| CN110542559A (en) * | 2019-08-29 | 2019-12-06 | 无锡沃尔福汽车技术有限公司 | Cold water temperature control system in engine |
| CN110580067A (en) * | 2019-09-12 | 2019-12-17 | 安徽恒星世纪空调制冷设备有限公司 | High-precision constant-temperature water outlet device for laboratory and water temperature adjusting method thereof |
| CN111189630A (en) * | 2018-11-13 | 2020-05-22 | 广州汽车集团股份有限公司 | Cooling circulation system for transmission bench test, control method and application |
| CN112177756A (en) * | 2020-09-30 | 2021-01-05 | 东风汽车集团有限公司 | Method for controlling temperature of cooling liquid under dynamic working condition of engine platform elevating |
| CN112284742A (en) * | 2020-09-21 | 2021-01-29 | 东风汽车集团有限公司 | Water temperature and flow control system for engine pedestal |
| CN112727587A (en) * | 2019-10-28 | 2021-04-30 | 广州汽车集团股份有限公司 | Coolant liquid temperature control system |
| CN112857811A (en) * | 2021-01-21 | 2021-05-28 | 玉林市检验检测中心有限公司 | Cooling liquid circulation control method and system for engine bench test |
| CN114382584A (en) * | 2021-12-31 | 2022-04-22 | 潍柴动力扬州柴油机有限责任公司 | Engine temperature control device and temperature control method |
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2015
- 2015-02-05 CN CN201520083833.9U patent/CN204440208U/en active Active
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043773B (en) * | 2015-07-14 | 2017-09-26 | 中国嘉陵工业股份有限公司（集团） | The durable strenuous test method of air-cooled oiling cold engine |
| CN105043773A (en) * | 2015-07-14 | 2015-11-11 | 中国嘉陵工业股份有限公司（集团） | Endurance enhancement test method of air-cooled and oil-cooled engines |
| CN109425490A (en) * | 2017-08-31 | 2019-03-05 | 深圳市万斯得自动化设备有限公司 | New-energy automobile simulated testing system |
| CN111189630A (en) * | 2018-11-13 | 2020-05-22 | 广州汽车集团股份有限公司 | Cooling circulation system for transmission bench test, control method and application |
| CN109357159A (en) * | 2018-11-14 | 2019-02-19 | 江苏科技大学 | A kind of deep cooling supercritical fluid regasifies experimental system and working method |
| CN109357159B (en) * | 2018-11-14 | 2020-11-10 | 江苏科技大学 | Cryogenic supercritical fluid regasification experimental system and working method |
| CN109557963A (en) * | 2018-12-25 | 2019-04-02 | 苏州奥德机械有限公司 | A kind of industry simulation test control system that can be precisely controlled flow and temperature |
| CN109855882A (en) * | 2018-12-30 | 2019-06-07 | 苏州英特模汽车科技有限公司 | Automobile power assembly test coolant temperature control method and device |
| CN109828176B (en) * | 2019-03-14 | 2021-08-24 | 武汉理工大学 | High-low temperature cycle test system for motor battery of new energy automobile |
| CN109828176A (en) * | 2019-03-14 | 2019-05-31 | 武汉理工大学 | A kind of New energy automobile motor battery high/low temperature loop test system |
| CN110542559A (en) * | 2019-08-29 | 2019-12-06 | 无锡沃尔福汽车技术有限公司 | Cold water temperature control system in engine |
| CN110580067A (en) * | 2019-09-12 | 2019-12-17 | 安徽恒星世纪空调制冷设备有限公司 | High-precision constant-temperature water outlet device for laboratory and water temperature adjusting method thereof |
| CN112727587A (en) * | 2019-10-28 | 2021-04-30 | 广州汽车集团股份有限公司 | Coolant liquid temperature control system |
| CN112284742A (en) * | 2020-09-21 | 2021-01-29 | 东风汽车集团有限公司 | Water temperature and flow control system for engine pedestal |
| CN112284742B (en) * | 2020-09-21 | 2022-02-22 | 东风汽车集团有限公司 | Water temperature and flow control system for engine pedestal |
| CN112177756A (en) * | 2020-09-30 | 2021-01-05 | 东风汽车集团有限公司 | Method for controlling temperature of cooling liquid under dynamic working condition of engine platform elevating |
| CN112177756B (en) * | 2020-09-30 | 2021-12-17 | 东风汽车集团有限公司 | Method for controlling temperature of cooling liquid under dynamic working condition of engine platform elevating |
| CN112857811A (en) * | 2021-01-21 | 2021-05-28 | 玉林市检验检测中心有限公司 | Cooling liquid circulation control method and system for engine bench test |
| CN114382584A (en) * | 2021-12-31 | 2022-04-22 | 潍柴动力扬州柴油机有限责任公司 | Engine temperature control device and temperature control method |
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