CN109152293A - A kind of thermal management algorithm and system and device - Google Patents

A kind of thermal management algorithm and system and device Download PDF

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Publication number
CN109152293A
CN109152293A CN201811084452.7A CN201811084452A CN109152293A CN 109152293 A CN109152293 A CN 109152293A CN 201811084452 A CN201811084452 A CN 201811084452A CN 109152293 A CN109152293 A CN 109152293A
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China
Prior art keywords
temperature
cooling medium
radiator
cooling
wind speed
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CN201811084452.7A
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CN109152293B (en
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刘景平
张定文
胡小龙
邢孔将
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Guangzhou Qin Ling Automotive Technology Technology Co Ltd
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Guangzhou Qin Ling Automotive Technology Technology Co Ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20209Thermal management, e.g. fan control

Abstract

The invention belongs to field of heat management, it is specifically a kind of thermal management algorithm, the following steps are included: step 1: obtaining the temperature rate-of-rise of each radiator, the radiator for reaching cooling medium critical-temperature at first is determined according to temperature rate-of-rise, and using the radiator as the radiator of priority acccess control;Step 2: the temperature of the cooling medium of preset time point is prejudged according to the temperature rate-of-rise of the cooling medium of the radiator of priority acccess control;Step 3: the flow and cooling wind speed of the cooling medium of preset time point are determined according to the temperature of the cooling medium of preset time point;Step 4: the flow control parameter of the cooling medium using the flow of the corresponding cooling medium of temperature of the cooling medium of preset time point and cooling wind speed as current time and cooling wind speed control parameter.This method is optimized the radiating control for being related to the motor vehicle of multiple groups radiator, the invention also discloses system for carrying out the process and device by the method for anticipation and the rule of priority acccess control.

Description

A kind of thermal management algorithm and system and device
Technical field
The present invention relates to radiator field, specially a kind of thermal management algorithm and system and device.
Background technique
It includes that circulating battery circuit, air conditioner refrigerating return that CN 201610605177.3, which discloses a kind of automotive thermal tube reason system, Road and thermal management controller, circulating battery circuit include the first battery pipeline and the power electric that is connected in the first battery pipeline Pond, battery radiator and heat-exchanging component, heat-exchanging component are used to carry out heat between circulating battery circuit and external circuit to exchange; Air conditioner refrigerating circuit include the first refrigeration pipeline, the second refrigeration pipeline, fan and the compressor being connected on the first refrigeration pipeline, Condenser and evaporator, the second refrigeration pipeline are connect with heat-exchanging component, and the both ends of the second refrigeration pipeline are connected to evaporator both ends The first refrigeration pipeline on, condenser and battery radiator are set to the air side of fan;Thermal management controller is used for according to dynamic The cooling demand and environment temperature of power battery select starting fan or compressor for power battery cooling.
CN 201521078152.X discloses a kind of vehicle heat management system dynamic test system, it is desirable to provide vehicle heat Management system vehicle respectively do one's assignment the data under state acquisition, for later period vehicle hot systems design provide preciousness data. Including input unit, output unit, acquisition equipment, wheelpath and recording instrument for vehicle speed, communication unit and terminal platform.With it is existing Technology is compared, it is compatible based on electric current, voltage, frequency, digital quantity input unit, using face is wider, and output unit can be to input The dependent failure and information of unit shown, acquisition equipment to the information of input, output unit carry out real-time online display and Acquisition.Acquisition equipment, driving speed and track recorder are communicated by communication unit with the communication protocol of various modes.Eventually The collection, storage and analysis work for holding the achievable data of platform, there is preferable human-computer interaction and intellectual analysis.
Above-mentioned technology, which is rested on mostly through hardware modifications, improves heat management efficiency.
It, will if not carrying out effective method control to radiator but by being found after permanent operation and experiment Hardware cost is significantly improved, preset control target is even unable to reach.
Especially in bad working environments, more needs a set of feasible control program to optimize, otherwise will lead to scattered Hot device is frequently alarmed.
Summary of the invention
The purpose of the present invention is to provide a kind of thermal management algorithm and system and device, this method by the method for anticipation and The rule of priority acccess control optimizes the radiating control for being related to the motor vehicle of multiple groups radiator, and this method is not related to hardware It improves.But the present invention does not repel advanced optimizing for hardware.
A kind of thermal management algorithm, the thermal management algorithm are related in the case where same fan acts on or under the effect of multiple fans At least two radiators;Each radiator is preset with corresponding cooling medium critical-temperature;The method includes following Step:
Step 1: obtaining the temperature rate-of-rise of each radiator, cooling Jie is reached according to temperature rate-of-rise determination at first The radiator of matter critical-temperature, and using the radiator as the radiator of priority acccess control;
Step 2: the cold of preset time point is prejudged according to the temperature rate-of-rise of the cooling medium of the radiator of priority acccess control But the temperature of medium;
Step 3: according to the temperature of the cooling medium of preset time point determine the cooling medium of preset time point flow and Cooling wind speed;
A performance curve is tested and set in advance to any radiator, sets cooling Jie on the performance curve The matter flow of corresponding cooling medium and cooling wind speed under arbitrary temperature conditions;
Step 4: using the flow of the corresponding cooling medium of temperature of the cooling medium of preset time point and cooling wind speed as The flow control parameter of the cooling medium at current time and cooling wind speed control parameter.
It further include step 5 after step 4 in above-mentioned thermal management algorithm;
Step 5: repeating step 1- step 4.
In above-mentioned thermal management algorithm, the temperature rate-of-rise is the 0-10s before current time to current time Interior temperature rate-of-rise.
Preferably, the temperature rate-of-rise is raising speed in the temperature in the 0.1-3s before current time to current time Rate
In above-mentioned thermal management algorithm, the preset time point is the 0-10s after current time.
Preferably, preset time point is the 0.1-3s after current time.
In above-mentioned thermal management algorithm, the method for test and the setting of performance curve are as follows:
Step S31: by the cooling medium control of radiator in different temperature and constant temperature;
Step S32: when testing each temperature spot, control cooling medium consumption and cooling wind speed, so that the temperature of cooling medium It begins to decline, it is determined that the corresponding relationship of the cooling medium consumption and cooling wind speed and the temperature spot.
Meanwhile the invention also discloses a kind of heat management systems for realizing the above method, including such as lower unit:
Critical-temperature setup unit, for setting the cooling medium critical-temperature of each radiator;
Priority acccess control unit, the temperature rate-of-rise of the cooling medium for obtaining each radiator, rises according to temperature Rate determines the radiator for reaching cooling medium critical-temperature at first, and using the radiator as the radiator of priority acccess control;
Unit is prejudged, the radiator of the priority acccess control for determining according to priority acccess control unit and the cooling of the radiator are situated between The temperature of the cooling medium of the temperature rate-of-rise anticipation preset time point of matter;
Parameter determination unit is set on the performance curve for testing and setting a performance curve of radiator The cooling medium flow of corresponding cooling medium and cooling wind speed under arbitrary temperature conditions;
Execution unit, the performance curve of the radiator for being determined according to parameter determination unit determine obtained by anticipation unit The flow of the corresponding cooling medium of the temperature arrived and cooling wind speed, the flow of the cooling medium as current time and cooling wind speed Control parameter.
It further include cycling element in above-mentioned heat management system, for controlling priority acccess control unit, anticipation unit, ginseng Number determination unit, execution unit circuit sequentially execution.
In above-mentioned heat management system, the temperature rate-of-rise is the 0-10s before current time to current time Interior temperature rate-of-rise, the preset time point are the 0-10s after current time.
It further include parameter presetting module in above-mentioned heat management system, the parameter presetting module includes following son Module:
Submodule 1: for controlling the cooling medium of radiator in different temperature and constant temperature;
Submodule 2: when for testing each temperature spot, control cooling medium consumption and cooling wind speed, so that cooling medium Temperature is begun to decline, it is determined that the corresponding relationship of the cooling medium consumption and cooling wind speed and the temperature spot.
Meanwhile also disclose a kind of heat management device, including multiple radiators and act on one of multiple radiators or Multiple fans and heat management system as described above.
Beneficial effect
The present invention in step 1, the radiator of priority acccess control is determined using the method for anticipation, in step 2-3, is passed through Sequence rule determines the flow of the cooling medium of radiator and the cooling wind speed of fan.By aforesaid operations, can not change On the basis of hardware condition, the optimal control of the radiator of maximum possible is realized, transport it can normally in severe operating condition Row.
Detailed description of the invention
Fig. 1 is the performance curve of radiator X of the invention;
Fig. 2 is the temperature rising curve under the specific operation of radiator X, Y, Z of the invention;
Fig. 3 is the flow diagram of method of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Such as Fig. 3, a kind of thermal management algorithm, the thermal management algorithm is related in the case where same fan acts on or multiple fans are made At least two radiators under;Each radiator is preset with corresponding cooling medium critical-temperature;The method packet Include following steps:
Step 1: obtaining the temperature of the cooling medium of preset first time period (such as 3s) before the current time of each radiator Climbing speed is spent, is determined according to temperature rate-of-rise and reaches the radiator of cooling medium critical-temperature at first, and by the radiator Radiator as priority acccess control;It should be noted that do not repel the setting of other durations in the present embodiment, as 1s, 5s, 7s, 0.5s etc..With reference to Fig. 2, three curves represent three radiators, radiator X, radiator Y, radiator Z, in Fig. 2 in Fig. 2 In, it is identical critical-temperature T0 for simplicity radiator X, radiator Y, radiator Z;It can record in step 1 Temperature rate-of-rise before current time t1 in 3s, and determine following temperature variation curve (with reference in Fig. 2 according to the rate Dotted portion);Radiator X is the radiator for being most readily accessible to critical-temperature as seen in Figure 2.
Step 2: the temperature rate-of-rise according to the cooling medium in 3s before the current time of the radiator of priority acccess control is pre- Sentence the temperature of the cooling medium of preset time point (2s after such as current time);
With reference to Fig. 2, the position of t1+2s is marked in figure 2, radiator corresponds to a temperature P at the time point;
Step 3: the flow and cooling wind speed of the cooling medium of t1 are determined according to the temperature of the cooling medium of t1+2s;
A performance curve is tested and set in advance to any radiator, sets cooling Jie on the performance curve The matter flow of corresponding cooling medium and cooling wind speed under arbitrary temperature conditions;The determination method of its performance curve is specifically joined Examine Fig. 1;The performance curve of radiator X is shown in Fig. 1.Fig. 1 is similar with the curve in Fig. 2, but in practical applications, Fig. 1 and The curve of Fig. 2 is likely to dissimilar, for the ease of simple declaration, in the present embodiment by the curve setting in Fig. 1 be in Fig. 2 The practical temperature rise curve of radiator X is similar.
The test method of performance curve in Fig. 1 is specific as follows:
Step S31: by the cooling medium control of radiator in different temperature and constant temperature;
Step S32: when testing each temperature spot, control cooling medium consumption and cooling wind speed, so that the temperature of cooling medium It begins to decline, it is determined that the corresponding relationship of the cooling medium consumption and cooling wind speed and the temperature spot.
It is the performance curve of radiator X in Fig. 1;The position of P point is corresponding with the flow velocity of wind speed and cooling medium in figure, from reason Think under state, the flow velocity with the wind speed and cooling medium is to can control to continue to rise in P point temperature completely.
From the point of view of the description of step S31 and step S32, for a radiator, there can be many different property Energy curve, but in practical applications, we are often using the coolant temperature pair measured under the ecotopia in laboratory The flow velocity of the optimal wind speed and cooling medium answered.
In Fig. 2, it can be seen that the radiator of override control is radiator X, at following 2s moment, temperature P, and And the curve A in the curve and Fig. 1 under the operating condition is to be overlapped, that is to say, that the working condition of (Fig. 2) can in practical applications To find corresponding working condition in Fig. 1.Wherein, the abscissa of Fig. 2 is the time, and ordinate is coolant temperature.Fig. 1's Abscissa is wind speed and cooling medium consumption, and ordinate is coolant temperature.
In this case, we are just by test obtains the speed of wind speed or perhaps fan in advance corresponding to P point in Fig. 1 Degree and the flow of cooling medium take out.
Step 4: using the flow of the corresponding cooling medium of the temperature of the cooling medium of t1+2s and cooling wind speed as it is current when The flow control parameter of the cooling medium at quarter and cooling wind speed control parameter.
Step 5: repeating step 1- step 4.
In step 1, the radiator that priority acccess control is determined using the method for anticipation passes through precedence method in step 2-3 Then determine the radiation parameter of radiator.By aforesaid operations, maximum possible can be realized on the basis of not changing hardware condition Radiator optimal control, operate normally it can in severe operating condition.
Embodiment 2
A kind of heat management device, including multiple radiators and the one or more fans and heat that act on multiple radiators Management system;
The heat management system is specifically included such as lower unit:
Critical-temperature setup unit, for setting the cooling medium critical-temperature of each radiator;
Priority acccess control unit, the temperature rate-of-rise of the cooling medium for obtaining each radiator, rises according to temperature Rate determines the radiator for reaching cooling medium critical-temperature at first, and using the radiator as the radiator of priority acccess control;Institute The temperature rate-of-rise stated is the temperature rate-of-rise of the 0-10s before current time to current time, does not include 0s.Such as it is current The above-mentioned rate of the temperature at the moment such as 3s, 5s or 7s before moment to current time.
Unit is prejudged, the radiator of the priority acccess control for determining according to priority acccess control unit and the cooling of the radiator are situated between The temperature of the cooling medium of the temperature rate-of-rise anticipation preset time point of matter;Preset time point is the 0- after current time 10s does not include 0s;It for example is 2s, 4s, 6s or 8s etc. after current time.
Parameter determination unit is tested and is set a performance curve of radiator, sets on the performance curve The cooling medium flow of corresponding cooling medium and cooling wind speed under arbitrary temperature conditions;
Execution unit, the performance curve of the radiator for being determined according to parameter determination unit determine obtained by anticipation unit The flow of the corresponding cooling medium of the temperature arrived and cooling wind speed, the flow of the cooling medium as current time and cooling wind speed Control parameter;
Cycling element is circuited sequentially for controlling priority acccess control unit, anticipation unit, parameter determination unit, execution unit It executes.
Parameter presetting module, the parameter presetting module includes following submodule:
Submodule 1: for controlling the cooling medium of radiator in different temperature and constant temperature;It mainly simulates practical Operating condition.
Submodule 2: when for testing each temperature spot, control cooling medium consumption and cooling wind speed, so that cooling medium Temperature is begun to decline, it is determined that the corresponding relationship of the cooling medium consumption and cooling wind speed and the temperature spot.
Its operation logic is:
Firstly, each radiator is being run, fan is also being run.Before vehicle release or in maintenance process, lead to Cross the cooling medium critical-temperature that critical-temperature setup unit sets each radiator;
Meanwhile parameter presetting module also has been started up, as long as parameter presetting module directly reads preset performance curve i.e. It can.
Then, in the process of running;Priority acccess control unit obtains the temperature rate-of-rise of the cooling medium of each radiator, And the cooling medium critical-temperature of each radiator set by critical-temperature setup unit is combined, determination reaches cooling Jie at first The radiator of matter critical-temperature, and using the radiator as the radiator of priority acccess control;
After priority acccess control unit determines the radiator of priority acccess control, anticipation unit is calculated according to priority acccess control unit The radiator of the temperature rate-of-rise of the cooling medium arrived and priority acccess control anticipation preset time point such as after current time 2s it is cold But the temperature of medium;
The temperature of cooling medium for the radiator preset time point that parameter determination unit is determined according to anticipation unit and excellent The radiator that first control unit determines;And the performance curve prestored in incorporating parametric presetting module, determine that the temperature is corresponding cold But the flow parameter of medium and cooling wind speed.
Then the stream of the cooling medium of the preset time point for the radiator that execution unit is determined according to parameter determination unit The flow control parameter and cooling wind speed control parameter of amount and cooling wind speed as the radiator in the cooling medium at current time;
Last cycling element according to above-mentioned rate-determining steps control priority acccess control unit, anticipation unit, parameter determination unit, Execution unit circuits sequentially execution.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.

Claims (10)

1. a kind of thermal management algorithm, the thermal management algorithm be related in the case where same fan acts on or under the effect of multiple fans extremely Few two radiators;Each radiator is preset with corresponding cooling medium critical-temperature;It is characterized in that, the method The following steps are included:
Step 1: obtaining the temperature rate-of-rise of each radiator, determine that reaching cooling medium at first faces according to temperature rate-of-rise The radiator of boundary's temperature, and using the radiator as the radiator of priority acccess control;
Step 2: the cooling of preset time point being prejudged according to the temperature rate-of-rise of the cooling medium of the radiator of priority acccess control and is situated between The temperature of matter;
Step 3: flow and the cooling of the cooling medium of preset time point are determined according to the temperature of the cooling medium of preset time point Wind speed;
A performance curve is tested and set in advance to any radiator, sets cooling medium on the performance curve and exists The flow of corresponding cooling medium and cooling wind speed under arbitrary temperature conditions;
Step 4: using the flow of the corresponding cooling medium of temperature of the cooling medium of preset time point and cooling wind speed as currently The flow control parameter of the cooling medium at moment and cooling wind speed control parameter.
2. thermal management algorithm according to claim 1, which is characterized in that further include step 5 after step 4;
Step 5: repeating step 1- step 4.
3. thermal management algorithm according to claim 1, which is characterized in that the temperature rate-of-rise be current time extremely The temperature rate-of-rise in 0-10s before current time.
4. thermal management algorithm according to claim 1, which is characterized in that the preset time point is after current time 0-10s.
5. thermal management algorithm according to claim 1, which is characterized in that the method for test and the setting of performance curve are as follows:
Step S31: by the cooling medium control of radiator in different temperature and constant temperature;
Step S32: when testing each temperature spot, control cooling medium consumption and cooling wind speed, so that the temperature of cooling medium starts Decline, it is determined that the corresponding relationship of the cooling medium consumption and cooling wind speed and the temperature spot.
6. a kind of heat management system, which is characterized in that including such as lower unit:
Critical-temperature setup unit, for setting the cooling medium critical-temperature of each radiator;
Priority acccess control unit, the temperature rate-of-rise of the cooling medium for obtaining each radiator, according to temperature rate-of-rise Determine the radiator for reaching cooling medium critical-temperature at first, and using the radiator as the radiator of priority acccess control;
Unit is prejudged, the cooling medium of the radiator and radiator of the priority acccess control for being determined according to priority acccess control unit Temperature rate-of-rise prejudges the temperature of the cooling medium of preset time point;
Parameter determination unit, tests and sets a performance curve, and it is in office to set cooling medium on the performance curve The flow of corresponding cooling medium and cooling wind speed under the temperature conditions of meaning;
Execution unit, the performance curve of the radiator for being determined according to parameter determination unit determine that anticipation unit is obtained The flow of the corresponding cooling medium of temperature and cooling wind speed, the control of the flow of the cooling medium as current time and cooling wind speed Parameter processed.
7. heat management system according to claim 6, which is characterized in that further include cycling element, for controlling preferential control Unit processed, anticipation unit, parameter determination unit, execution unit circuit sequentially execution.
8. heat management system according to claim 6, which is characterized in that the temperature rate-of-rise be current time extremely The temperature rate-of-rise in 0-10s before current time, the preset time point are the 0-10s after current time.
9. heat management system according to claim 6, which is characterized in that further include parameter presetting module, the parameter Presetting module includes following submodule:
Submodule 1: for controlling the cooling medium of radiator in different temperature and constant temperature;
Submodule 2: when for testing each temperature spot, control cooling medium consumption and cooling wind speed, so that the temperature of cooling medium It begins to decline, it is determined that the corresponding relationship of the cooling medium consumption and cooling wind speed and the temperature spot.
10. a kind of heat management device, which is characterized in that including multiple radiators and the one or more for acting on multiple radiators Fan and the heat management system as described in claim 5-9 is any.
CN201811084452.7A 2018-09-17 2018-09-17 Thermal management method, system and device Active CN109152293B (en)

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Publication number Priority date Publication date Assignee Title
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JP2006317012A (en) * 2005-03-07 2006-11-24 Kiyoshi Yanagimachi Air conditioner
CN103631348A (en) * 2012-08-24 2014-03-12 微盟电子(昆山)有限公司 Computer and control method for smart fan thereof
JP2015183993A (en) * 2014-03-26 2015-10-22 富士通株式会社 Cooling device, cooling system and electronic device
CN106970591A (en) * 2016-01-14 2017-07-21 发那科株式会社 The cooling body of machinery
CN108297677A (en) * 2018-01-24 2018-07-20 国机智骏(北京)汽车科技有限公司 The control method and control device of pure electric automobile and its cooling system
CN108376810A (en) * 2018-02-12 2018-08-07 威马智慧出行科技(上海)有限公司 Power battery thermal management method and system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1708213A (en) * 2004-06-03 2005-12-14 索尼计算机娱乐公司 Electronic device cooling apparatus and method for forecasting and cooling temperature of electronic equipment
JP2006317012A (en) * 2005-03-07 2006-11-24 Kiyoshi Yanagimachi Air conditioner
CN103631348A (en) * 2012-08-24 2014-03-12 微盟电子(昆山)有限公司 Computer and control method for smart fan thereof
JP2015183993A (en) * 2014-03-26 2015-10-22 富士通株式会社 Cooling device, cooling system and electronic device
CN106970591A (en) * 2016-01-14 2017-07-21 发那科株式会社 The cooling body of machinery
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CN108376810A (en) * 2018-02-12 2018-08-07 威马智慧出行科技(上海)有限公司 Power battery thermal management method and system

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