CN115071408A - Vehicle thermal management accessory control method and device, controller and storage medium - Google Patents
Vehicle thermal management accessory control method and device, controller and storage medium Download PDFInfo
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- CN115071408A CN115071408A CN202110271396.3A CN202110271396A CN115071408A CN 115071408 A CN115071408 A CN 115071408A CN 202110271396 A CN202110271396 A CN 202110271396A CN 115071408 A CN115071408 A CN 115071408A
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- vehicle
- air inlet
- thermal management
- inlet grille
- active air
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000001816 cooling Methods 0.000 claims description 22
- 238000004590 computer program Methods 0.000 claims description 14
- 238000004378 air conditioning Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000017525 heat dissipation Effects 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 13
- 230000006870 function Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
Abstract
The invention discloses a vehicle thermal management accessory control method, a vehicle thermal management accessory control device, a vehicle thermal management accessory controller and a storage medium, which are used for improving the heat dissipation effect of vehicle parts. Wherein, the method part includes: judging whether the target part of the vehicle needs to work by the active air inlet grille or not; judging the fault state of the active air inlet grille; and when the target vehicle part needs the active air inlet grille to work and the active air inlet grille is in failure, controlling the thermal management accessories corresponding to the target vehicle part to work in a coordinated manner.
Description
Technical Field
The invention relates to the technical field of vehicle thermal control, in particular to a vehicle thermal management accessory control method, a vehicle thermal management accessory control device, a vehicle thermal management accessory controller and a storage medium.
Background
In order to beautify the appearance of a vehicle and display the scientific and technological feeling of the vehicle, and to attract consumers, the active air inlet grille is more and more widely applied to the vehicle, and the active air inlet grille mainly has the function of adjusting the air inlet amount through the opening and closing of an actuator (a grille blade) so as to ventilate and radiate the vehicle.
The inventors have found that the prior art provides a control scheme for an active grille that controls the transmission ratio of a continuously variable transmission when a failure in closing the active grille is detected. In this case, the transmission ratio of the transmission is passively selected to be lowered when the active grille fails, and thus the vehicle components cannot be efficiently cooled, simply considering whether the active grille fails.
Disclosure of Invention
The invention provides a vehicle thermal management accessory control method, a vehicle thermal management accessory control device, a vehicle thermal management accessory controller and a vehicle thermal management accessory storage medium, and aims to solve the technical problem that in the prior art, vehicle parts cannot be effectively radiated.
In a first aspect, a vehicle thermal management accessory control method is provided, comprising:
judging whether the target part of the vehicle needs to work by the active air inlet grille or not;
judging the fault state of the active air inlet grille;
and when the target vehicle part needs the active air inlet grille to work and the active air inlet grille is in failure, controlling the thermal management accessories corresponding to the target vehicle part to work in a coordinated manner.
Further, the controlling the thermal management accessories corresponding to the target vehicle component to work in coordination includes:
judging the type of the vehicle target part;
and when the target part of the vehicle is a power battery, controlling a power battery temperature control system to enter a rapid cooling state, controlling an air conditioning system to cool the power battery, and requesting the actuator with the failed active air inlet grille to open the grille completely.
Further, after the determining the type of the vehicle target component, the method further includes:
and when the target vehicle part is any one or more of an engine, a driving motor, a charger, an air conditioner and a direct current converter, controlling a vehicle cooling fan and an electrically-driven water pump to run at full speed, and requesting the full opening of the grille to an actuator of which the active air inlet grille is not in failure.
Further, when the active intake grille fails, the method further comprises:
acquiring the current power source temperature of the vehicle;
and limiting the torque of the whole vehicle according to the temperature of the power source.
Further, the limiting the vehicle torque according to the power source temperature comprises:
when the vehicle has two power sources of the engine and the driving motor, if the temperature of the driving motor is higher than a corresponding preset temperature threshold value, the driving motor is only used for driving, if the temperature of the engine is higher than the corresponding preset temperature threshold value, the driving motor is only used for driving, and if the temperatures of the engine and the driving motor are both higher than the corresponding preset temperature threshold values, the power of the whole vehicle is controlled to be limited to the power required for maintaining limp running within a certain time period.
Further, limiting the vehicle torque according to the power source temperature further comprises:
when the vehicle only has one power source of the engine or the driving motor, if the temperature of the one power source of the engine or the driving motor is higher than the corresponding preset temperature threshold value, the power of the whole vehicle is controlled to be limited to the power required for maintaining limp home for a certain period of time.
In a second aspect, a vehicle thermal management accessory control apparatus is provided, comprising:
the first judgment module is used for judging whether the vehicle target part needs to work by the active air inlet grille or not;
the second judgment module is used for judging the fault state of the active air inlet grille;
and the control module is used for controlling the thermal management accessories corresponding to the vehicle parts to work coordinately when the target vehicle parts need the active air inlet grille to work and the active air inlet grille is in failure.
Further, the control module is specifically configured to:
judging the type of the vehicle target part;
and when the target part of the vehicle is a power battery, controlling a power battery temperature control system to enter a rapid cooling state, controlling an air conditioning system to cool the power battery, and requesting all actuators of the active air inlet grille to open the active air inlet grille.
In a third aspect, a controller is provided that includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the above-described vehicle thermal management accessory control method when executing the computer program.
In a fourth aspect, a readable storage medium is provided, which stores a computer program that, when executed by a processor, performs the steps of the vehicle thermal management accessory control method described above.
In one scheme provided by the vehicle thermal management accessory control method, the vehicle thermal management accessory control device, the vehicle thermal management accessory control controller and the storage medium, the demand state of vehicle parts on the active air inlet grille and the fault state of the active air inlet grille are considered at the same time, and when the target vehicle part needs the active air inlet grille to work and the active air inlet grille fails, the heat dissipation capacity can be effectively improved through the coordinated control of corresponding thermal management accessories, so that the over-temperature situation of each part can be effectively reduced, and the power performance, the charging function and other functions of the whole vehicle are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic illustration of an environment in which a method of thermal management accessory control for a vehicle according to the present invention may be implemented;
FIG. 2 is a schematic flow diagram of a method for controlling a vehicle thermal management accessory in accordance with the present invention;
FIG. 3 is a schematic diagram of one embodiment of step 30 of FIG. 2;
FIG. 4 is a schematic structural diagram of a vehicle thermal management accessory control apparatus in accordance with the present invention;
fig. 5 is a schematic diagram of a controller according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The method for controlling the vehicle thermal management accessory provided by the embodiment of the invention can be applied to an application environment as shown in fig. 1, wherein the method comprises a controller, a vehicle part and a vehicle thermal management accessory, wherein the vehicle part comprises a power battery, an engine (and/or a driving motor), a charger, an air conditioner, a direct current converter (DC-DC converter) and the like, and the vehicle thermal management accessory refers to a relevant part/system/device for dissipating heat of the vehicle part, for example, the vehicle thermal management accessory comprises a power battery temperature control system, an air conditioning system, a vehicle cooling fan, an electric drive water pump and an active air intake grille. The vehicle thermal management accessory control method provided by the invention is applied to a controller, the controller can refer to a vehicle controller, and is not limited specifically, and the controller can control the thermal management accessories corresponding to the vehicle parts to perform coordinated heat dissipation work by acquiring relevant state parameters of the vehicle parts and fault diagnosis signals of an active air inlet grille.
It should be noted that fig. 1 and the above application environment are only exemplary and do not limit the present invention. The following describes embodiments of the present invention in detail with reference to the above application environments.
As shown in fig. 2, an embodiment of the present invention provides a flowchart of a method for controlling a vehicle thermal management accessory, including the following steps:
s10: and judging whether the target part of the vehicle needs to work by the active air inlet grille or not.
The vehicle target component refers to any one of vehicle components, for example, the vehicle target component may be a power battery, an engine, a driving motor, an air conditioner, a charger, or a dc converter, and the invention is not limited thereto.
During the starting or running process of the vehicle, the controller can judge whether the target part of the vehicle needs to work by the active air inlet grille or not in real time. Wherein the controller determines whether it needs the active grille in different ways for different vehicle components, as described separately below.
For the power battery, the controller can judge whether the power battery needs to be cooled by using the front end radiator according to the system state of the temperature control system of the power battery, and if the power battery needs to be cooled by using the front end radiator, the controller judges that the power battery needs the active air inlet grille to work, namely the active air inlet grille needs to be opened for ventilation; on the contrary, if the power battery does not need to be cooled by the front end radiator, the power battery does not need to work by the active air inlet grille. It should be noted that the power battery temperature control system is a system for controlling the temperature of the power battery, and includes a heat dissipation function for the power battery, when the power battery temperature control system needs to dissipate the heat of the power battery, the system state of the power battery temperature control system changes accordingly, and the controller can judge whether the power battery needs to operate the active air intake grille in real time according to the system state of the power battery temperature control system.
For the engine, the controller can judge whether the engine needs the active air inlet grille to work in real time according to the active air inlet grille opening degree request and the request effective signal fed back by the engine and the engine coolant temperature and temperature effective signal. It should be noted that when the engine temperature is too high to a certain extent, the engine may request the active intake grille to operate from the in-vehicle controller, and specifically, may feed back the active intake grille opening request and the request valid signal, and the engine coolant temperature and temperature valid signal, so that the in-vehicle controller may control the active intake grille to operate. For the controller, if the active air inlet grille opening degree request and request effective signals fed back by the engine and the engine coolant temperature and temperature effective signals are determined to be received, the engine is judged to need to work by the active air inlet grille; otherwise, judging that the engine does not need the active air inlet grille to work. It should be noted that, the above-mentioned manner for determining whether the engine needs to operate the active intake grille is only an exemplary illustration, and in practical applications, there may be other manners for determining, and the present disclosure is not limited herein. For example, if an active intake grille opening degree request and a request effective signal fed back by the engine are received, the engine can be directly judged to need the active intake grille to work. The engine coolant temperature and the temperature enable signal are information for referring to the opening of the active intake grill.
For an air conditioner in a vehicle, the controller can judge whether the air conditioner needs the active air inlet grille to work in real time according to the opening request and the request effective signal of the active air inlet grille fed back by the air conditioner, and the power effective signal of the air conditioner compressor. It should be noted that, in some air conditioner working conditions, the air conditioner needs the active air intake grille to work, and the air conditioner requests the controller to work the active air intake grille, and specifically, feeds back an opening request of the active air intake grille and a request effective signal, and a power and power effective signal of an air conditioner compressor, so that the in-vehicle controller controls the active air intake grille to work. For the controller, if the opening request and the request effective signal of the active air inlet grille and the power and power effective signal of the air conditioner compressor are determined to be received, the engine is judged to need the active air inlet grille to work; otherwise, the air conditioner is judged not to need the active air inlet grille to work. It should be noted that, the above-mentioned manner for determining whether the air conditioner needs to operate the active grille is only an exemplary illustration, and in practical applications, there may be other manners for determining, and the present disclosure is not limited herein. For example, if an active grille opening degree request and a request effective signal fed back by the air conditioner are received, the requirement of the active grille on the air conditioner to work can be directly judged. The air conditioner compressor power and the power effective signal are information for making reference to the opening degree of the active air inlet grille.
For the driving motor, the charger, the direct current converter and the like, whether the driving motor needs the active air inlet grille to work or not can be determined according to corresponding state signals, and specifically, the controller can determine whether the driving motor needs the active air inlet grille to work or not according to the temperature of the driving motor and effective signals thereof, the temperature of the driving cooling liquid and effective signals thereof; the controller can determine whether the charger needs to work by the active air inlet grille according to the temperature of the charger and an effective signal thereof; the controller may determine whether the dc converter needs the active grille shutter according to the temperature of the dc converter and the valid signal thereof, which is not described herein.
S20: and judging the fault state of the active air inlet grille.
In the invention, the fault state of the active air inlet grille is also judged. It is understood that the active intake grille is generally provided with a plurality of actuators, and the active intake grille is generally provided with double actuators, and the controller can judge actuator fault diagnosis signals fed back by the active intake grille to determine the fault state of the active intake grille. For example, taking the active grille as a dual actuator (including actuator 1 and actuator 2) as an example, the relationship between the failure type of the active grille and whether the failure type of the active grille responds to the controller command can be shown in the following table 1:
TABLE 1
As shown in table 1, the active air intake grille has a plurality of fault types, including actuator overvoltage, over-temperature, Lin communication fault, etc., and when one actuator of the active air intake grille has a fault type as shown in table 1, it will not respond to the controller command. Such as when actuator 1Lin communication fails, actuator 1 will not be able to respond to the controller command. In the embodiment of the invention, the fault state of the active air inlet grille can be judged in real time, and when any actuator of the active air inlet grille has the fault type, the active air inlet grille is judged to have a fault.
S30: and when the target vehicle part needs the active air inlet grille to work and the active air inlet grille is in failure, controlling the thermal management accessories corresponding to the target vehicle part to work in a coordinated manner.
In the invention, when the target vehicle part needs the active air inlet grille to work and the active air inlet grille is in failure, the controller controls the thermal management accessories corresponding to the vehicle part to work coordinately. For example, when it is determined that the power battery needs to operate the active air intake grille and the active air intake grille is in a failure state, the controller controls the thermal management accessories corresponding to the power battery to operate in coordination.
Therefore, in the embodiment of the invention, the method for controlling the vehicle thermal management accessories is provided, when the target vehicle part needs the active air inlet grille to work and the active air inlet grille is in failure, the heat dissipation capability can be effectively improved, the over-temperature condition of each part can be effectively reduced, and the influence on the power performance and the charging function of the whole vehicle can be further reduced by the coordinated control of the corresponding thermal management accessories.
It should be noted that, in the embodiment of the present invention, corresponding thermal management accessories are provided for different vehicle components, and for different vehicle target components, the thermal management accessories corresponding to the vehicle target components are coordinately controlled to improve the heat dissipation effect.
Specifically, in an embodiment, as shown in fig. 3, in step S30, that is, controlling the thermal management accessory corresponding to the target component of the vehicle to work in coordination, the method specifically includes the following steps:
s31: judging the type of the vehicle target part;
s32: and when the target part of the vehicle is a power battery, controlling a power battery temperature control system to enter a rapid cooling state, controlling an air conditioning system to cool the power battery, and requesting the actuator with the failed active air inlet grille to open the grille completely.
The power battery temperature control system is a cooling device arranged in a vehicle, the rapid cooling state is one working state of the power battery temperature control system, and under the rapid cooling state, the power battery temperature control system can trigger corresponding temperature control operation, so that the power battery is rapidly cooled, the active air inlet grille is effectively ensured to have a heat dissipation effect under the condition that the active air inlet grille is in a failure state, and the condition that the power battery fails or the working effect is poor is reduced. In addition, besides controlling the power battery temperature control system to enter a rapid cooling state, the power battery can be controlled to be cooled by the in-vehicle air conditioning system, specifically, the controller needs to control a relevant three-way valve and a three-way proportional valve in the vehicle, and switches the temperature control pipeline to a rapid cooling loop utilizing the air conditioning system, so that the power battery is cooled by the in-vehicle air conditioning system, and the heat dissipation effect of the power battery is further ensured. In addition, the embodiment of the invention also requests the actuator which does not have the fault in the active air inlet grille to be fully opened. It can be understood that when the active air intake grille is judged to be in fault, one actuator may be in fault, and the other actuator does not have fault, in this case, the actuator which does not have fault can still respond to the controller instruction, therefore, in order to further ensure the heat dissipation effect, the actuator which does not have fault still requests the grille to be fully opened, so that the grille of the actuator which does not have fault is opened, the ventilation is maintained, and the heat dissipation effect is further improved.
S32: and when the target vehicle part is any one or more of an engine, a driving motor, a charger, an air conditioner and a direct current converter, controlling a vehicle cooling fan and an electrically-driven water pump to run at full speed, and requesting the full opening of the grille to an actuator of which the active air inlet grille is not in failure.
In some embodiments, when the target vehicle component is any one or more of an engine, a driving motor, a charger, an air conditioner or a dc converter, the cooling fan and the electrically-driven water pump of the vehicle are controlled to run at full speed to ensure the heat dissipation effect of the target vehicle component is the engine, the driving motor, the charger, the air conditioner or the dc converter.
The vehicle cooling fan and the electrically-driven water pump are built-in cooling devices of the vehicle, the full-speed operation is one of the working states of the vehicle cooling fan and the electrically-driven water pump, and the vehicle cooling fan and the electrically-driven water pump have high heat dissipation capacity during the full-speed operation. In addition to controlling full speed operation of the vehicle cooling fan and the electrically driven water pump, full grille opening may be actively requested from an actuator of the active intake grille that is not malfunctioning. As described above, when it is determined that the active grille has a failure, it may be that one of the actuators has a failure and the other actuator has not failed, and in this case, the actuator that has not failed can still respond to the controller command, and therefore, in order to further ensure the heat dissipation effect, the actuator that has not failed also requests the grille to be fully opened, so that the grille of the actuator that has not failed is opened, and the ventilation is maintained, thereby further improving the heat dissipation effect.
It can be seen that, in the above embodiment, corresponding thermal management accessories are set for different vehicle components, and the corresponding thermal management accessories of the vehicle target components are coordinately controlled for different vehicle target components, so that the heat dissipation effect of each vehicle component is pertinently improved.
It should be noted that, in order to further improve the heat dissipation effect, reduce the failure rate of the vehicle, and improve the quality of the goods, the method for controlling the vehicle thermal management accessory according to the present invention further includes the following steps when the active air intake grille fails:
s40: and acquiring the current power source temperature of the vehicle.
It should be understood that different vehicles may have different power sources depending on the type of power. The power source of a vehicle generally includes several types: first, only an engine is included as a power source; secondly, only a driving motor is included as a power source; and thirdly, the device comprises two power sources of an engine and a driving motor. In the embodiment of the invention, when the active air inlet grille is in failure, the current power source temperature of the vehicle can be acquired in real time.
S50: and limiting the torque of the whole vehicle according to the temperature of the power source.
In the embodiment of the invention, the current power source temperature of the vehicle can be combined in real time, and the torque of the whole vehicle is limited in real time, so that the heat productivity of the related power source is reduced. The power source temperature may be read by a temperature sensor, and the embodiment of the present invention is not described in detail.
It is understood that, as described above, the power source of the vehicle may be provided in various manners, and therefore, the entire vehicle torque is limited according to the temperature of the power source, and there are different schemes. Specifically, limiting the vehicle torque according to the power source temperature means:
when two power sources of the engine and the driving motor exist simultaneously, if the temperature of the driving motor is higher than a corresponding preset temperature threshold value, the driving motor is only used for driving, and if the temperature of the engine is higher than the corresponding preset temperature threshold value, the driving motor is only used for driving. It can be seen that, in the embodiment of the present invention, when two power sources, namely, the engine and the driving motor, exist at the same time, corresponding preset temperature values are set for both the engine and the driving motor, wherein the preset temperature threshold corresponding to the engine or the driving motor may be calibrated according to an actual test result, which is not limited herein. When the active air inlet grille breaks down and the temperature of a certain power source is too high, the power source with the too high temperature is abandoned, so that the heat productivity of the power source with the too high temperature is reduced, and the heat dissipation effect is improved.
When the two power sources of the engine and the driving motor exist simultaneously, if the temperatures of the engine and the driving motor are higher than the corresponding preset temperature thresholds, the power of the whole vehicle is controlled to be limited to the power required for maintaining limping within a certain time, and the heat productivity of the whole power source is reduced, so that the heat dissipation effect is improved. When only one power source of the engine or the driving motor exists, if the temperature of the one power source of the engine or the driving motor is higher than the corresponding preset temperature threshold, the power of the whole vehicle is directly controlled to be limited to the power required for maintaining limp running within a certain time period. In some scenarios, an active grille failure may also be simultaneously indicated on the meter for timely driver handling.
The limp home running required power can be realized by coordinately controlling the driving torques of the engine and the driving motor, and the time length for maintaining the limp home running required power can be determined according to an actual vehicle test, and is not limited specifically.
In conclusion, when the vehicle parts need to work through the active air inlet grille and the actuator of the vehicle parts fails, the over-temperature faults of the vehicle parts can be effectively reduced through the coordinated control of the heat management accessories of the whole vehicle, so that the influence of the heat dissipation problem on the power performance and the charging function of the whole vehicle is reduced, the commodity quality of the whole vehicle is improved, and the application scene is better.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In one embodiment, a vehicle thermal management accessory control device is provided, which corresponds to the vehicle thermal management accessory control method in the above embodiments one to one. As shown in fig. 4, the vehicle thermal management accessory control device includes a first determination module 101, a second determination module 102, and a control module 103. The detailed description of each functional module is as follows:
the first judgment module is used for judging whether the vehicle target part needs to work by the active air inlet grille or not;
the second judgment module is used for judging the fault state of the active air inlet grille;
and the control module is used for controlling the thermal management accessories corresponding to the vehicle parts to work coordinately when the target vehicle parts need the active air inlet grille to work and the active air inlet grille is in failure.
In an embodiment, the control module is specifically configured to:
judging the type of the vehicle target part;
and when the target part of the vehicle is a power battery, controlling a power battery temperature control system to enter a rapid cooling state, controlling an air conditioning system to cool the power battery, and requesting all actuators of the active air inlet grille to open the active air inlet grille.
In an embodiment, the control module is further specifically configured to:
and when the target vehicle part is any one or more of an engine, a driving motor, a charger, an air conditioner and a direct current converter, controlling a vehicle cooling fan and an electrically-driven water pump to run at full speed, and requesting the full opening of the grille to an actuator of which the active air inlet grille is not in failure.
In one embodiment, the vehicle thermal management accessory control apparatus further comprises an obtaining module;
the acquisition module is used for acquiring the current power source temperature of the vehicle when the active air intake grille breaks down;
and the control module is also used for limiting the torque of the whole vehicle according to the temperature of the power source.
In one embodiment, the control module is configured to:
when two power sources of the engine and the driving motor exist simultaneously, if the temperature of the driving motor is higher than a corresponding preset temperature threshold value, the engine is only used for driving, if the temperature of the engine is higher than the corresponding preset temperature threshold value, the driving motor is only used for driving, and if the temperatures of the engine and the driving motor are both higher than the corresponding preset temperature threshold values, the power of the whole vehicle is controlled to be limited to the power required for maintaining limp running within a certain time period.
When only one power source of the engine or the driving motor exists, if the temperature of the one power source of the engine or the driving motor is higher than the corresponding preset temperature threshold, controlling the power of the whole vehicle to be limited to the power required for maintaining limp home for a certain period of time.
Therefore, in the embodiment of the invention, the vehicle thermal management accessory control device is provided, when a target part of a vehicle needs to work on the active air inlet grille and the active air inlet grille fails, the heat dissipation capability can be effectively improved through the coordinated control of the corresponding thermal management accessory, the over-temperature condition of each part can be effectively reduced, and the influence on the dynamic performance and the charging function of the whole vehicle can be further reduced.
For specific definitions of the vehicle thermal management accessory control device, reference may be made to the above definitions of the vehicle thermal management accessory control method, which are not described in detail herein. The various modules in the vehicle thermal management accessory control device described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a controller is provided, which may be a vehicle controller, and its internal structure diagram may be as shown in fig. 5. The controller includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the controller is configured to provide computational and control capabilities. The memory of the controller includes a storage medium and an internal memory. The storage medium storage includes a volatile or non-volatile storage medium that stores an operating system and a computer program. The internal memory provides an environment for the operating system and computer programs in the storage medium to run. The network interface of the controller is used for communicating with an external system or component, such as a power battery temperature control system, through a network connection, and the computer program is executed by the processor to realize the vehicle thermal management accessory control method.
In one embodiment, a controller is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
judging whether the target part of the vehicle needs to work by the active air inlet grille or not;
judging the fault state of the active air inlet grille;
and when the target vehicle part needs the active air inlet grille to work and the active air inlet grille is in failure, controlling the thermal management accessories corresponding to the target vehicle part to work in a coordinated manner.
In one embodiment, a readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, performs the steps of:
judging whether the target part of the vehicle needs to work by the active air inlet grille or not;
judging the fault state of the active air inlet grille;
and when the target vehicle part needs the active air inlet grille to work and the active air inlet grille is in failure, controlling the thermal management accessories corresponding to the target vehicle part to work in a coordinated manner.
Therefore, in the embodiment of the invention, a controller and a readable storage medium are provided, when a target part of a vehicle needs to work on an active air intake grille and the active air intake grille fails, through the coordinated control of corresponding thermal management accessories, the heat dissipation capability can be effectively improved, the over-temperature condition of each part can be effectively reduced, and the influence on the dynamic performance and the charging function of the whole vehicle can be further reduced.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (10)
1. A vehicle thermal management accessory control method, comprising:
judging whether the target part of the vehicle needs to work by the active air inlet grille or not;
judging the fault state of the active air inlet grille;
and when the target vehicle part needs the active air inlet grille to work and the active air inlet grille is in failure, controlling the thermal management accessories corresponding to the target vehicle part to work in a coordinated manner.
2. The vehicle thermal management accessory control method according to claim 1, wherein the controlling of the thermal management accessories corresponding to the target vehicle component is coordinated, and comprises:
judging the type of the vehicle target part;
and when the target part of the vehicle is a power battery, controlling a power battery temperature control system to enter a rapid cooling state, controlling an air conditioning system to cool the power battery, and requesting the actuator with the failed active air inlet grille to open the grille completely.
3. The vehicle thermal management accessory control method of claim 2, wherein after determining the type of the vehicle target part, the method further comprises:
and when the target vehicle part is any one or more of an engine, a driving motor, a charger, an air conditioner and a direct current converter, controlling a vehicle cooling fan and an electrically-driven water pump to run at full speed, and requesting the full opening of the grille to an actuator of which the active air inlet grille is not in failure.
4. The vehicle thermal management accessory control method of any of claims 1-3, wherein when the active intake grille fails, the method further comprises:
acquiring the current power source temperature of the vehicle;
and limiting the torque of the whole vehicle according to the temperature of the power source.
5. The vehicle thermal management accessory control method of claim 4, wherein limiting the vehicle finishing torque based on the power source temperature comprises:
when the vehicle has two power sources, namely an engine and a driving motor, the engine is only used for driving if the temperature of the driving motor is higher than a corresponding preset temperature threshold value, the driving motor is only used for driving if the temperature of the engine is higher than a corresponding preset temperature threshold value, and the power of the whole vehicle is controlled to be limited to the power required for maintaining limp driving within a certain period of time if the temperatures of the engine and the driving motor are higher than corresponding preset temperature threshold values.
6. The vehicle thermal management accessory control method of claim 5, wherein limiting vehicle torque based on the power source temperature further comprises:
when only one power source of the engine or the driving motor exists in the vehicle, if the temperature of the engine or the driving motor is higher than a corresponding preset temperature threshold value, the power of the whole vehicle is controlled to be limited to the power required for maintaining limp home for a certain period of time.
7. A vehicle thermal management accessory control apparatus, comprising:
the first judgment module is used for judging whether the vehicle target part needs to work by the active air inlet grille or not;
the second judgment module is used for judging the fault state of the active air inlet grille;
and the control module is used for controlling the thermal management accessories corresponding to the vehicle parts to work coordinately when the target vehicle parts need the active air inlet grille to work and the active air inlet grille is in failure.
8. The vehicle thermal management accessory control device of claim 7, wherein the control module is specifically configured to:
judging the type of the vehicle target part;
and when the target part of the vehicle is a power battery, controlling a power battery temperature control system to enter a rapid cooling state, controlling an air conditioning system to cool the power battery, and requesting all actuators of the active air inlet grille to open the active air inlet grille.
9. A controller comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of a vehicle thermal management accessory control method according to any one of claims 1 to 6.
10. A readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of a vehicle thermal management accessory control method according to any one of claims 1 to 6.
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| CN202110271396.3A CN115071408A (en) | 2021-03-12 | 2021-03-12 | Vehicle thermal management accessory control method and device, controller and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110271396.3A CN115071408A (en) | 2021-03-12 | 2021-03-12 | Vehicle thermal management accessory control method and device, controller and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357485A (en) * | 2023-05-30 | 2023-06-30 | 潍柴动力股份有限公司 | Engine intake air heating method, engine intake air heating system, storage medium and electronic equipment |
| WO2024067044A1 (en) * | 2022-09-28 | 2024-04-04 | 中国第一汽车股份有限公司 | Method and apparatus for opening proportion of active grille, and processor |
-
2021
- 2021-03-12 CN CN202110271396.3A patent/CN115071408A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067044A1 (en) * | 2022-09-28 | 2024-04-04 | 中国第一汽车股份有限公司 | Method and apparatus for opening proportion of active grille, and processor |
| CN116357485A (en) * | 2023-05-30 | 2023-06-30 | 潍柴动力股份有限公司 | Engine intake air heating method, engine intake air heating system, storage medium and electronic equipment |
| CN116357485B (en) * | 2023-05-30 | 2023-09-19 | 潍柴动力股份有限公司 | Engine intake air heating method, engine intake air heating system, storage medium and electronic equipment |
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