CN115962044A - Method and device for controlling cold water pump in vehicle and storage medium - Google Patents
Method and device for controlling cold water pump in vehicle and storage medium Download PDFInfo
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- CN115962044A CN115962044A CN202310042202.1A CN202310042202A CN115962044A CN 115962044 A CN115962044 A CN 115962044A CN 202310042202 A CN202310042202 A CN 202310042202A CN 115962044 A CN115962044 A CN 115962044A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention discloses a method and a device for controlling a cold water pump in a vehicle and a storage medium. The vehicle intercooling water pump control method is applied to a vehicle, the vehicle comprises a vehicle intercooling water pump control device, an engine and a intercooling water pump, and the vehicle intercooling water pump control method is executed by the vehicle intercooling water pump control device; the method comprises the following steps: acquiring parameter information of a vehicle; determining the working condition state of the engine according to the parameter information of the vehicle; according to the working condition state of the engine, the output power of the intercooler water pump is controlled, so that the temperature of the intercooler of the engine is correspondingly adjusted under different working condition states of the engine, and the purpose of controlling the air inlet temperature of the engine is further achieved. The technical scheme provided by the embodiment of the invention can correspondingly control the intercooling water pump to operate at reasonable output power according to different working condition states of the vehicle, thereby optimizing the heat efficiency of the engine, reducing the fuel consumption generated by the operation of the intercooling water pump and improving the economy of the whole vehicle system.
Description
Technical Field
The embodiment of the invention relates to the technical field of automobile manufacturing, in particular to a method and a device for controlling a cold water pump in a vehicle and a storage medium.
Background
With the increasing updating of automobile functions, the electronic control water pump is more and more widely applied. However, the existing electronic control water pump has a plurality of problems when controlling the heat dissipation of the engine.
When the engine is operated under different operating conditions, the heat generated by the engine is different. The existing control method of the intercooling water pump can only control the operation of the intercooling water pump with one power under different working conditions, so as to dissipate heat of an engine intercooler, and has simple control logic and single output power. Under some working conditions, the requirement of the air inlet temperature of the engine cannot be met, the emission of the vehicle is deteriorated, the noise is increased, the fuel consumption is increased, and the economical efficiency of the vehicle is affected.
Disclosure of Invention
The invention provides a method and a device for controlling a cold water pump in a vehicle and a storage medium, which are used for achieving the effects of reducing the energy consumption of the vehicle and improving the economy of a whole vehicle system.
According to one aspect of the invention, a vehicle intercooling water pump control method is provided, and is applied to a vehicle, wherein the vehicle comprises a vehicle intercooling water pump control device, an engine and a mesocooling water pump, and the vehicle intercooling water pump control method is executed by the vehicle intercooling water pump control device; the method comprises the following steps:
acquiring parameter information of a vehicle;
determining the working condition state of the engine according to the parameter information of the vehicle;
and controlling the output power of the intercooling water pump according to the working condition state of the engine so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine.
Optionally, the operating condition state comprises a starting state;
the said operating mode state according to the said engine, control the output power of the said intercooling water pump, in order to adjust the said engine intake temperature correspondingly under different operating mode states of the said engine, including:
when the engine enters the starting state, judging the initial starting state of the engine according to the parameter information of the vehicle, and generating a first judgment result;
and determining the output power of the intercooling water pump according to the first judgment result.
Optionally, the determining the output power of the intercooling water pump according to the first judgment result includes:
when the engine is in a cold start state, controlling the intercooling water pump to be closed;
when the engine is in a warm-up starting state, controlling the intercooling water pump to output first output power according to a first preset condition;
wherein the initial starting state comprises a cold starting state and/or a warm starting state.
Optionally, the operating condition state includes an operating state;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
when the engine enters the running state, judging the running state of the engine and generating a second judgment result;
and determining the output power of the intercooling water pump according to the second judgment result.
Optionally, the determining the output power of the intercooling water pump according to the second determination result includes:
when the engine is in an idling state, controlling the intercooling water pump to output second output power according to a second preset condition;
and when the engine is in a normal running state, controlling the intercooling water pump to output a third output power according to a third preset condition.
Optionally, the parameter information of the vehicle includes a running speed of the vehicle;
the determining the output power of the intercooling water pump according to the second judgment result further includes:
determining a power correction value according to the running speed of the vehicle;
calculating the corrected output power of the intercooling water pump according to the power corrected value and the output power of the intercooling water pump in the running state;
and controlling the intercooling water pump to output the corrected output power.
Optionally, the operating condition state comprises a shutdown state; the parameter information of the vehicle comprises the power type of the vehicle;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
when the engine enters the stop state, judging the working state of the intercooling water pump before the engine enters the stop state;
when the intercooling water pump is in a running state, controlling the intercooling water pump to output fourth output power for a first preset time according to the power type of the vehicle;
and when the intercooling water pump is in a closed state, controlling the intercooling water pump to keep the closed state.
Optionally, the parameter information of the vehicle comprises the running speed of the vehicle and the stop time, wherein the stop time comprises the running time of the intercooler water pump after the engine of the vehicle is stopped;
when the intercooling water pump is in a running state, controlling the intercooling water pump to output fourth output power for a first preset time according to the power type of the vehicle, wherein the fourth output power comprises the following steps:
when the vehicle is a non-hybrid vehicle, controlling the intercooling water pump to output the fourth output power, and when the shutdown time of the engine is greater than a shutdown time threshold value, controlling the intercooling water pump to be closed;
and when the vehicle is a hybrid vehicle, comparing the running speed of the vehicle with a preset vehicle speed threshold value, and controlling the starting time of the intercooling water pump according to the comparison result.
Optionally, the determining the operating condition state of the engine according to the parameter information of the vehicle includes:
verifying the validity of the parameter information of the vehicle and outputting a verification result;
when the verification result is that the parameter information of the vehicle is invalid, controlling the intercooling water pump to output fixed output power;
and when the verification result is that the parameter information of the vehicle is valid, determining the working condition state of the engine according to the valid parameter information of the vehicle.
Optionally, the operating condition state of the engine further comprises: a power-down state and a power-up state;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
when the engine is in the power-off state, controlling the intercooling water pump to be closed;
when the engine enters the power-on state, controlling the intercooling water pump to keep a closing state;
judging that the vehicle meets a fourth preset condition, and controlling the vehicle to enter a next working condition state;
wherein the fourth preset condition includes: the engine is not in a flash state and the vehicle is not in a collision.
Optionally, the operating condition state of the engine further comprises: a power-off delay state;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
and when the engine enters the power-off delay state, controlling the intercooling water pump to output fifth output power according to a fifth preset condition.
According to another aspect of the present invention, there is provided an intercooler water pump control apparatus for a vehicle, the apparatus including:
the parameter acquisition module is used for acquiring parameter information of the vehicle;
the working condition determining module is used for determining the working condition state of the engine according to the parameter information of the vehicle;
and the water pump control module is used for controlling the output power of the intercooling water pump according to the working condition state of the engine so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine.
According to another aspect of the present invention, there is also provided a storage medium containing computer executable instructions for performing the method of cold water pump control in a vehicle as described in the first aspect when executed by a computer processor.
According to the technical scheme of the embodiment of the invention, the working condition state of the engine is determined by acquiring the parameter information of the vehicle and according to the parameter information of the vehicle. And controlling the output power of a cold water pump in the vehicle according to the working condition state of the engine, so as to adjust the air inlet temperature of the engine under different working condition states of the engine. The control method of the intercooling water pump in the vehicle provided by the embodiment of the invention can correspondingly control the running state of the intercooling water pump according to different working condition states of the engine, so that the intercooling water pump runs at reasonable output power, thereby reducing the fuel consumption generated by the running of the intercooling water pump and improving the economy of a whole vehicle system.
It should be understood that the statements in this section are not intended to identify key or critical features of the embodiments of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments 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 to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for controlling an intercooler pump in a vehicle according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating control of a vehicle operating condition according to an embodiment of the present invention;
fig. 3 is a specific flowchart of step S130 in a method for controlling an intercooler water pump in a vehicle according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a step S130 in another vehicle intercooled water pump control method according to an embodiment of the present invention;
FIG. 5 is a logic control schematic diagram of a control method of an intercooler pump in a vehicle when the vehicle is in a starting state according to an embodiment of the invention;
fig. 6 is a schematic flowchart of a step S130 in another vehicle intercooled water pump control method according to an embodiment of the present invention;
FIG. 7 is a logic control schematic diagram of a control method of an intercooler pump in a vehicle when the vehicle is in a running state according to an embodiment of the invention;
fig. 8 is a schematic flowchart of step S130 in another vehicle intercooled water pump control method according to an embodiment of the present invention;
FIG. 9 is a logic control schematic diagram of a control method for an intercooler water pump in a vehicle in a shutdown state according to an embodiment of the invention;
FIG. 10 is a schematic flow chart of a further method for controlling an intercooler water pump in a vehicle according to an embodiment of the invention;
FIG. 11 is a logic control schematic diagram of a control method for an intercooler pump in a vehicle in a power-off sleep state according to an embodiment of the invention;
fig. 12 is a schematic structural diagram of an intercooler water pump control apparatus in a vehicle according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention provides a control method of a cold water pump in a vehicle. Fig. 1 is a schematic flow diagram of a control method for an intercooler water pump in a vehicle according to an embodiment of the present invention, where the control method for the intercooler water pump in the vehicle is applied to the vehicle, the vehicle includes a control device for the intercooler water pump in the vehicle, an engine, and an intercooler water pump in the vehicle, and the control method for the intercooler water pump in the vehicle is executed by the control device for the intercooler water pump in the vehicle, and includes:
and S110, acquiring parameter information of the vehicle.
Specifically, the parameter information of the vehicle is a plurality of parameters of the vehicle itself and the external environment in which the vehicle is located when the vehicle is in different states. The parameter information of the vehicle may specifically include, without limitation, power-on information of the vehicle, engine speed, engine temperature, intake air temperature, ambient temperature, and the like.
And S120, determining the working condition state of the engine according to the parameter information of the vehicle.
Specifically, in a complete state cycle of the vehicle, the working condition states of the vehicle may include a power-off state, a power-on state, a starting state, a running state, a shutdown state, a power-off delay state and the like. The working condition state of the vehicle can be determined according to the parameter information of the vehicle, and the working condition state of the vehicle can be used as the working condition state of the engine. FIG. 2 is a control flow chart of a vehicle operating condition state according to an embodiment of the present invention. The vehicle parameter information required to determine the engine operating condition state may include vehicle electrical signal off, vehicle electrical signal on, starter status information, engine speed information, and the like. As shown in fig. 2, the vehicle is initially in a powered down state and upon receiving a vehicle power up signal, the vehicle enters a powered up state. Illustratively, the vehicle power-on signal may be generated by the KL15 being powered on. When the starter operation is detected, the vehicle enters a starting state. When the starter is detected to be withdrawn, the engine has a certain rotating speed, and the vehicle enters a running state. When the engine speed is 0, the vehicle enters a stopped state. When the vehicle power-off signal is received, the vehicle enters a power-off delay state. After the vehicle completely sleeps, the vehicle is recovered to a power-off state, and the working condition state of the engine goes through a complete control cycle.
And S130, controlling the output power of the intercooling water pump according to the working condition state of the engine so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine.
Specifically, because the heat generated by the engine under different working condition states is different, the duty ratio of the control signal of the output water pump needs to be adjusted according to the different working condition states of the engine to control the rotation speed of the intercooler water pump, and further control the output power of the intercooler water pump, so that the intercooler water pump runs at the corresponding output power to drive the cooling liquid in the intercooler to circulate at a certain flow rate, thereby taking away the supercharged air heat and reducing the intake temperature of the engine.
For example, when the vehicle is in a powered state, the engine is not already running at a greater speed and, therefore, the temperature of the engine is lower. At the moment, the intercooling water pump only needs to operate at a lower rotating speed, and even the intercooling water pump does not need to be used for auxiliary heat dissipation, so that the requirement on the air inlet temperature of the engine can be met. And when the vehicle is running at a higher speed, the engine speed is larger and the load is larger. At the moment, the intercooling water pump needs to be controlled to operate at a high output power, so that the cooling liquid in the engine can be quickly circulated, the air inlet temperature of the engine can be quickly reduced, and the heat dissipation efficiency can be improved. By adopting the control method of the intercooling water pump in the vehicle, the output power of the intercooling water pump is correspondingly adjusted for different working condition states of the vehicle, the fuel consumption generated by the operation of the intercooling water pump is reduced, and the economy of a whole vehicle system is improved.
According to the technical scheme of the embodiment, the working condition state of the engine is determined by acquiring the parameter information of the vehicle according to the parameter information of the vehicle. And controlling the output power of the intercooling water pump according to the working condition state of the engine, so as to adjust the air inlet temperature of the engine under different working condition states of the engine. The control method for the intercooling water pump of the vehicle provided by the embodiment can correspondingly control the running state of the intercooling water pump according to different working condition states of the engine, so that the intercooling water pump runs at reasonable output power, the fuel consumption generated by running of the intercooling water pump is reduced, and the economy of a whole vehicle system is improved.
Optionally, fig. 3 is a specific flowchart of step S130 in the method for controlling an intercooler water pump in a vehicle according to the embodiment of the present invention. On the basis of the above embodiment, as shown in fig. 3, the operating condition state includes a start state.
According to the working condition state of the engine, the output power of the intercooling water pump is controlled so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine, and the method comprises the following steps:
and S131, when the engine enters the starting state, judging the initial starting state of the engine according to the parameter information of the vehicle, and generating a first judgment result.
Specifically, the initial starting state of the engine is a starting state when the engine starts to start. When the starter is detected to be running, the engine is indicated to enter a starting state. When the engine is in different starting states, the ambient temperature of the engine and the heat generated by the engine are different, so that the initial starting state of the engine is judged and determined according to the parameter information of the vehicle, and a first judgment result is obtained.
S132, determining the output power of the intercooling water pump according to the first judgment result.
Specifically, according to the obtained first judgment result, for different initial starting states of the engine, the output power of the intercooling water pump is determined, so that the requirement of the intake temperature of the engine is met, and the energy consumption of the operation of the intercooling water pump is reduced.
Optionally, fig. 4 is a specific flowchart of step S130 in another vehicle intercooler water pump control method provided by the embodiment of the present invention. On the basis of the above embodiment, as shown in fig. 4, determining the output power of the intercooler water pump according to the first judgment result includes:
s131, when the engine enters the starting state, judging the initial starting state of the engine according to the parameter information of the vehicle, and generating a first judgment result.
And S1321, controlling the intercooling water pump to be closed when the engine is in a cold start state.
Specifically, when the ambient temperature is low and the engine temperature is close to the ambient temperature, in order to protect the engine from being damaged, the first determination result is generated such that the initial starting state of the engine is the cold starting state. When the engine enters a cold start state, the temperature of the engine is low, so that the generated heat is less, and an intercooling water pump is not required to operate for heat dissipation. Therefore, the intercooling water pump is controlled to keep a closed state.
S1322, when the engine is in a warm-up starting state, controlling the intercooling water pump to output first output power according to a first preset condition.
Wherein the initial starting state comprises a cold starting state and/or a warm starting state.
Specifically, when the ambient temperature is high, the inside of the engine also has a certain temperature. At this time, the first determination result is generated such that the initial starting state of the engine is the warm-up starting state. The first preset condition may include a relationship table between the engine off time and the engine temperature from the time of the last stop state to the present time. When the vehicle is in a warm-up starting state, judging whether to start intercooling water pump control or not according to the stop time and the engine temperature in the acquired vehicle parameter information and a first preset condition. Illustratively, if the engine is shut down for a short period of time and the engine temperature is too high, the intercooled water pump control is turned on. And adjusting the output power of the intercooling water pump to be first output power according to the air inlet temperature and the ambient temperature at the current moment, and controlling the operation of the intercooling water pump.
Fig. 5 is a logic control schematic diagram of a control method of an intercooler water pump in a vehicle in a starting state according to an embodiment of the invention. As shown in fig. 5, when the vehicle enters a starting state, the specific process of the cold water pump control method in the vehicle is as follows:
s3-1, judging whether the air inlet temperature, the engine temperature and the environment temperature are abnormal or not; if yes, switching to a step S3-2; if not, the step S3-3 is carried out;
s3-2, controlling the intercooling water pump to output fixed output power;
s3-3, judging whether the engine is in a cold engine starting state or not; if yes, turning to the step S3-4; if not, the step S3-5 is carried out;
s3-4, controlling the intercooling water pump to keep a closing state;
s3-5, checking a table according to the stop time of the engine and the temperature of the engine, and judging whether to start the control of the intercooling water pump; if yes, switching to a step S3-6; if not, the step S3-4 is carried out;
s3-6, controlling the intercooling water pump to output first output power according to the air inlet temperature and the ambient temperature;
and S3-7, filtering the output power signal of the intermediate cooling water pump, and then outputting the filtered output power signal of the intermediate cooling water pump.
One possible application scenario is as follows: when the vehicle enters a starting state, after judging that the air inlet temperature, the engine temperature and the environment temperature are not abnormal, if judging that the engine is in a cold machine starting state, closing the control of the intercooling water pump; if the engine is not in a cold start state, namely in a warm start state, determining to start the control of the intercooling water pump after table lookup according to the stop time of the engine and the temperature of the engine, and finally controlling the intercooling water pump to output first output power according to the air inlet temperature and the ambient temperature.
Optionally, fig. 6 is a specific flowchart of step S130 in another vehicle intercooler water pump control method provided by the embodiment of the present invention. On the basis of the above embodiment, as shown in fig. 6, the operating condition state includes an operating state.
According to the operating mode state of the engine, the output power of the intercooling water pump is controlled, so that the air inlet temperature of the engine is correspondingly adjusted under different operating mode states of the engine, and the method comprises the following steps:
and S133, when the engine enters the running state, judging the running state of the engine and generating a second judgment result.
Specifically, after the engine is started, the engine is put into a running state, and the engine is operated at a certain rotation speed. In the running state, the running state of the engine needs to be judged, and a second judgment result is obtained. Wherein the second determination result includes that the operating state of the engine is an idle state and that the operating state of the engine is a normal operating state.
S134, determining the output power of the intercooling water pump according to the second judgment result.
Specifically, according to different running states of the engine, corresponding judgment is carried out to determine the output power of the intercooling water pump, so that the intake temperature of the engine is reduced.
Optionally, with reference to fig. 6, based on the foregoing embodiments, determining the output power of the intercooler water pump according to the second determination result includes:
and S1341, when the engine is in an idling state, controlling the intercooling water pump to output a second output power according to a second preset condition.
Specifically, the second preset condition is a relation table for judging whether to start intercooling water pump control according to the engine temperature. And when the second judgment result is that the engine is in an idling state, judging whether to start intercooling water pump control according to the temperature of the engine. Illustratively, if the engine temperature is above a certain temperature threshold, the intercooling water pump control is turned on. The temperature threshold may be set by the user according to the actual situation, and is not limited herein. After the control of the intercooling water pump is started, the output power of the intercooling water pump is adjusted according to the air inlet temperature and the ambient temperature, and the intercooling water pump is controlled to output a second output power.
And S1342, when the engine is in a normal running state, controlling the intercooling water pump to output third output power according to a third preset condition.
Specifically, the third preset condition is a relation table for judging whether to start the intercooling water pump control, and the third preset condition is specifically used for judging the intercooling water pump control state according to the relation between the intake air temperature and the air mass flow. Where the mass air flow is the mass of ambient air per unit flow into the engine. Illustratively, a higher intake air temperature and a higher mass air flow rate indicates a higher engine temperature and a higher engine load. Therefore, an intercooler water pump needs to be started for control, and heat dissipation is carried out on an intercooler of the engine. And when the control of the intercooling water pump is judged to be started according to a third preset condition, the output power of the intercooling water pump is adjusted according to the air inlet temperature and the ambient temperature so as to output a third output power and reduce the air inlet temperature of the engine.
Alternatively, on the basis of the above-described embodiments, with continued reference to fig. 6, the parameter information of the vehicle includes the traveling speed of the vehicle.
Determining the output power of the intercooling water pump according to the second judgment result, and further comprising:
s1343, determining a power correction value according to the running speed of the vehicle.
Specifically, when the engine is in an operating state, the vehicle has a certain running speed. In the running process of the vehicle, outside air can enter the engine, and the engine has a certain effect of reducing the air inlet temperature of the engine. Due to different running speeds of the vehicles, the air flow entering the engine is different, and the effect on cooling the engine is different. Therefore, according to the running speed of the vehicle and the relation table of the running speed and the power correction value, the power correction value for correcting the output power of the intercooling water pump is determined, so that the actual output power of the intercooling water pump is correspondingly reduced, and the fuel consumption of the operation of the intercooling water pump is further reduced.
And S1344, calculating the corrected output power of the intercooling water pump according to the power correction value and the output power of the intercooling water pump in the running state.
When the engine is in an idling state, the power correction value is multiplied by the second output power of the intercooling water pump, and the corrected output power of the intercooling water pump in the idling state is calculated. And when the engine is in a normal operation state, multiplying the power correction value by the third output power of the intercooling water pump, and calculating to obtain the corrected output power of the intercooling water pump in the normal operation state.
And S1345, controlling the intercooling water pump to output the corrected output power.
Specifically, the intercooling water pump is controlled to output corrected output power under an idling state or a normal operation state, and therefore the heat dissipation requirement of an engine intercooler under the idling state or the normal operation state can be met.
Fig. 7 is a logic control schematic diagram of a control method of an intercooler water pump in a vehicle in a running state according to an embodiment of the invention. As shown in fig. 7, when the vehicle enters the running state, the specific process of the cold water pump control method in the vehicle is as follows:
s4-1, judging whether the air inlet temperature, the engine temperature and the environment temperature are abnormal or not; if yes, turning to the step S4-2; if not, the step S4-3 is carried out;
s4-2, controlling the intercooling water pump to output fixed output power;
s4-3, judging whether the engine is in an idling state; if yes, turning to the step S4-4; if not, the step S4-7 is carried out;
s4-4, judging whether to start intercooling water pump control or not according to the temperature of the engine; if yes, switching to a step S4-5; if not, the step S4-8 is carried out;
s4-5, controlling the intercooling water pump to output second output power or third output power according to the air inlet temperature and the ambient temperature;
s4-6, correcting the output power of the central and cold water pump according to the running speed of the vehicle;
s4-7, judging whether to start intercooling water pump control or not according to the air inlet temperature and the air mass flow; if yes, switching to a step S4-5; if not, the step S4-8 is carried out;
s4-8, controlling the intercooling water pump to keep a closing state;
and S4-9, filtering the output power signal of the intermediate cooling water pump, and then outputting the filtered output power signal of the intermediate cooling water pump.
One achievable application scenario is: after the intake air temperature, the engine temperature and the environment temperature are judged to be not abnormal, and for the condition that the engine is in an idling state and the control of the intercooling water pump needs to be started, the intercooling water pump is controlled to output second output power according to the intake air temperature and the environment temperature. And correcting the second output power according to the vehicle running speed, and outputting the corrected output power.
Optionally, fig. 8 is a specific flowchart of step S130 in another vehicle intercooled water pump control method provided in the embodiment of the present invention. On the basis of the above embodiment, as shown in fig. 8, the operating condition state includes a shutdown state; the parameter information of the vehicle includes a power type of the vehicle.
According to the operating mode state of the engine, the output power of the intercooling water pump is controlled, so that the air inlet temperature of the engine is correspondingly adjusted under different operating mode states of the engine, and the method comprises the following steps:
and S135, when the engine enters the stop state, judging the working state of the intercooling water pump before the engine enters the stop state.
Specifically, when the rotation speed of the engine is 0, which is acquired from the parameter information, it indicates that the engine enters a stop state. In order to judge the state of the intercooling water pump after the engine enters the shutdown state, whether the engine needs to be subjected to auxiliary heat dissipation through the intercooling water pump or not is judged according to the state of the intercooling water pump before the engine enters the shutdown state.
And S136, when the intercooling water pump is in the running state, controlling the intercooling water pump to continuously output fourth output power for a first preset time according to the power type of the vehicle.
Specifically, before the engine enters the stop state, the intercooler water pump is in the running state, which indicates that the temperature of the engine is still high before the engine enters the stop state, and the engine has a certain load. Therefore, after the engine enters the stop state, the operation of the intercooler water pump needs to be kept. After the engine enters the stop state, the state of the vehicle is different for different power types of vehicles.
For example, the power type of the vehicle may include hybrid vehicles and non-hybrid vehicles. For a hybrid vehicle, the power battery of the vehicle may still provide power to the vehicle after the engine enters a shutdown state. Therefore, the hybrid vehicle still has a certain traveling speed after the engine enters the stop state. Whereas for non-hybrid vehicles, in the present embodiment primarily fuel-powered vehicles are included, purely electric vehicles are not contemplated by the present embodiment. When the engine enters a stop state, the fuel-powered vehicle loses power and runs in a coasting state until the running speed is reduced to 0. Therefore, for vehicles with different power types, the first preset time for the intercooler water pump to continuously output the fourth output power needs to be adjusted correspondingly, so that the engine intake temperature is reduced.
And S137, controlling the intercooling water pump to keep a closing state when the intercooling water pump is in a closing state.
Specifically, if the intercooling water pump is in a closed state before the engine enters a stop state, the temperature of the engine before the stop is reduced to a proper temperature, and auxiliary heat dissipation of the intercooling water pump is not needed. Therefore, after the engine enters the stop state, the intercooling water pump is continuously controlled to keep the closed state.
Alternatively, on the basis of the above embodiments, with continuing reference to fig. 8, the parameter information of the vehicle includes the running speed of the vehicle and the stop time, and the stop time includes the operation time of the intercooler water pump after the engine of the vehicle is stopped.
When the intermediate cooling water pump is in a running state, controlling the intermediate cooling water pump to continuously output fourth output power for a first preset time according to the power type of the vehicle, wherein the fourth output power comprises the following steps:
s1361, when the vehicle is a non-hybrid vehicle, controlling the intercooling water pump to output fourth output power, and when the stop time of the engine is larger than the stop time threshold value, controlling the intercooling water pump to be closed.
Specifically, in the present embodiment, when the vehicle is a non-hybrid vehicle, that is, the vehicle is a fuel-powered vehicle. After the engine enters a stop state, the running speed of the fuel vehicle is gradually reduced to 0, and the intercooler water pump is controlled to continuously run at the fourth output power so as to reduce the intake temperature of the engine. When the shutdown time of the engine is greater than a shutdown time threshold (which can be recorded as T1), the operation time of the intercooling water pump is indicated to meet the heat dissipation requirement of an intercooler of the engine, and the intercooling water pump can be controlled to be closed.
S1362, when the vehicle is a hybrid vehicle, comparing the running speed of the vehicle with a preset vehicle speed threshold value, and controlling the opening time of the intercooling water pump according to the comparison result.
Specifically, when the vehicle is a hybrid vehicle, the running speed of the current vehicle is acquired and compared with a preset vehicle speed threshold. If the running speed of the vehicle is smaller than the preset vehicle speed threshold value, the vehicle is indicated to run at a lower speed at the moment, and the flow of the outside air entering the engine is smaller in the running process. Therefore, the effect of reducing the engine temperature provided by the outside air is small. And when the engine stop time is greater than a first stop time threshold value, controlling the intercooling water pump to be turned off, namely, the turn-on time of the intercooling water pump is the first stop time threshold value (which can be recorded as T2). If the running speed of the vehicle is greater than the preset vehicle speed threshold value, the vehicle is indicated to run at a higher speed at the moment, and the flow of the outside air entering the engine is larger in the running process. Therefore, the effect of reducing the engine temperature provided by the outside air is large. And when the engine stop time is greater than a second stop time threshold, controlling the intercooling water pump to be turned off, namely, the turn-on time of the intercooling water pump is the second stop time threshold (which can be recorded as T3). It should be noted that the first downtime threshold is smaller than the second downtime threshold.
Fig. 9 is a schematic logic control diagram of a control method for an intercooler pump in a vehicle when the vehicle is in a shutdown state according to an embodiment of the present invention. As shown in fig. 9, when the vehicle enters a stop state, the specific process of the method for controlling the intercooler water pump in the vehicle is as follows:
s5-1, judging whether the air inlet temperature, the engine temperature and the environment temperature are abnormal or not; if yes, turning to the step S5-2; if not, the step S5-3 is carried out;
s5-2, controlling the intercooling water pump to output fixed output power;
s5-3, judging whether the intercooling water pump is in a running state before the engine is stopped; if yes, turning to the step S5-5; if not, the step S5-4 is carried out;
s5-4, controlling the intercooling water pump to keep a closing state;
s5-5, judging whether the power type of the vehicle is a hybrid vehicle or not; if yes, turning to the step S5-7; if not, the step S5-6 is carried out;
s5-6, judging whether the stop time of the engine is greater than T1; if yes, switching to a step S5-4; if not, the step S5-10 is carried out;
s5-7, judging whether the running speed of the vehicle is greater than a preset vehicle speed threshold value; if yes, turning to the step S5-9; if not, the step S5-8 is carried out;
s5-8, judging whether the stop time of the engine is greater than T2; if yes, turning to the step S5-4; if not, the step S5-10 is carried out;
s5-9, judging whether the stop time of the engine is greater than T3; if yes, turning to the step S5-4; if not, the step S5-10 is carried out;
s5-10, keeping the output power of the intercooling water pump before the engine is stopped;
and S5-11, filtering the output power signal of the intermediate cooling water pump, and then outputting the filtered output power signal of the intermediate cooling water pump.
One applicable application scenario: and after judging that the air inlet temperature, the engine temperature and the ambient temperature are not abnormal, indicating that the hybrid vehicle runs at a higher speed under the condition that the running speed of the hybrid vehicle is greater than the preset vehicle speed threshold value. After the engine is stopped, the intercooler water pump keeps operating at the output power before the engine is stopped. And when the stop time of the engine reaches a first stop time threshold value, the intercooling water pump control can be closed.
Optionally, fig. 10 is a schematic flowchart of another method for controlling an intercooler water pump in a vehicle according to an embodiment of the present invention. On the basis of the above embodiments, as shown in fig. 10, the vehicle inter-coolant pump control method includes:
and S210, acquiring parameter information of the vehicle.
And S221, verifying the validity of the parameter information of the vehicle and outputting a verification result.
Specifically, the intake air temperature, the engine temperature, and the ambient temperature included in the parameter information of the vehicle are detected and acquired by temperature sensors provided at respective positions. If the temperature sensor fails, the acquired temperature parameter information may be inaccurate. Therefore, in order to ensure the accuracy of the control method of the intercooling water pump, the validity of the temperature parameter information needs to be verified, and a verification result is generated.
S222, controlling the intercooling water pump to output fixed output power when the verification result is that the parameter information of the vehicle is invalid.
Specifically, when the verification result shows that the parameter information of the vehicle is invalid, it indicates that the output power of the central cold water pump cannot be adjusted and controlled by the vehicle cold water pump control method according to the parameter information. At the moment, the intercooling water pump is controlled to operate at a fixed output power, so that the air inlet temperature of the engine is reduced to a certain extent, and the phenomenon that the air inlet temperature of the engine is too high is avoided. The fixed output power may be 30% of the rated output power of the intercooler water pump, or may be set by a user according to actual conditions, which is not limited herein.
And S223, when the verification result is that the parameter information of the vehicle is effective, determining the working condition state of the engine according to the effective parameter information of the vehicle.
Specifically, when the verification result shows that the parameter information of the vehicle is valid, the working condition state of the engine can be determined according to the parameter information.
And S230, controlling the output power of the intercooling water pump according to the working condition state of the engine so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine.
Specifically, under the corresponding working condition state of the engine, corresponding judgment is carried out according to the control method of the intercooling water pump in the vehicle, the output power of the intercooling water pump is determined, and the operation of the intercooling water pump is controlled so as to meet the requirement of the air inlet temperature of the engine.
Optionally, on the basis of the foregoing embodiments, the operating condition state of the engine further includes: a power-down state and a power-up state.
According to the working condition state of the engine, the output power of the intercooling water pump is controlled so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine, and the method comprises the following steps:
when the engine is in a power-off state, controlling the intercooling water pump to be closed;
when the engine enters a power-on state, controlling the intercooling water pump to keep a closing state;
judging that the vehicle meets a fourth preset condition, and controlling the vehicle to enter a next working condition state; wherein the fourth preset condition includes: the engine is not in the flash state and the vehicle is not in collision.
Specifically, when the engine is in a power-off state, the engine does not generate heat, and the intercooler water pump is not required to perform auxiliary heat dissipation, so that the intercooler water pump is kept off. And when the engine enters a power-on state, judging whether the vehicle meets a fourth preset condition. For example, the fourth preset condition may include that the engine is not in a flash state and the vehicle is not in a collision. The flash state is a state in which the engine controller updates software, and the vehicle is in a safe state when the vehicle is not collided. When the vehicle meets the fourth preset condition, the vehicle is allowed to enter the next working condition state, namely the starting state, and the operation of the intercooling water pump can be controlled by adjusting the output power of the intercooling water pump. It should be noted that the intercooling water pump is kept in the off state all the time during the power-on state of the engine.
Optionally, on the basis of the foregoing embodiments, the operating condition state of the engine further includes: and a power-off delay state.
According to the working condition state of the engine, the output power of the intercooling water pump is controlled so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine, and the method comprises the following steps:
and when the engine enters a power-off delay state, controlling the intercooling water pump to output fifth output power according to a fifth preset condition.
Specifically, the power-off delay state is a state between when the vehicle is powered off according to the received power-off signal and when the vehicle completely enters the sleep state. The fifth preset condition is a table according to the relationship between the intake air temperature and the engine temperature and the intercooling water pump control. And when the engine is in a power-off delay state, judging whether to start intercooling water pump control according to the acquired air inlet temperature and engine temperature and a fifth preset condition. Illustratively, when the air inlet temperature is higher and the engine temperature is higher, the intercooling water pump control needs to be started, and the air inlet temperature of the engine is reduced. And then, according to the air inlet temperature and the ambient temperature, the output power of the intercooling water pump is adjusted, the fifth output power is output, and the intercooling water pump is controlled to operate, so that the air inlet temperature of the engine is reduced to a proper temperature before the vehicle enters a complete dormancy state.
Fig. 11 is a logic control schematic diagram of a control method of an intercooler water pump in a vehicle in a power-off sleep state according to an embodiment of the invention. As shown in fig. 11, when the vehicle enters the power-off delay state, the specific process of the cold water pump control method in the vehicle is as follows:
s6-1, judging whether the power-off delay state exists or not; if yes, turning to step S6-2; if not, the step S6-4 is carried out;
s6-2, judging whether to start intercooling water pump control or not according to the air inlet temperature and the engine temperature; if yes, turning to the step S6-3; if not, the step S6-4 is carried out;
s6-3, controlling the intercooling water pump to output fifth output power according to the air inlet temperature and the ambient temperature;
s6-4, controlling the intercooling water pump to keep a closing state;
and S6-5, filtering the output power signal of the intermediate cooling water pump, and then outputting the filtered output power signal of the intermediate cooling water pump.
The embodiment of the invention also provides a control device of the cold water pump in the vehicle. Fig. 12 is a schematic structural diagram of a control device for an intercooler water pump in a vehicle according to an embodiment of the invention. As shown in fig. 12, the vehicle intercooler water pump control device 001 includes:
a parameter obtaining module 100, configured to obtain parameter information of a vehicle;
the working condition determining module 200 is used for determining the working condition state of the engine according to the parameter information of the vehicle;
and the water pump control module 300 is used for controlling the output power of the intercooling water pump according to the working condition state of the engine so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine.
The vehicle intercooling water pump control device provided by the embodiment of the invention can execute the vehicle intercooling water pump control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for controlling an intercooler water pump in a vehicle, the method including:
acquiring parameter information of a vehicle;
determining the working condition state of the engine according to the parameter information of the vehicle;
according to the working condition state of the engine, the output power of a water pump of the vehicle is controlled, so that the air inlet temperature of the engine is correspondingly adjusted under different working condition states of the engine.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the vehicle intercooler water pump control method provided by any embodiment of the present invention.
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: embodied in one or more computer programs that are executable on a programmable system including at least one programmable processor, which may be special or general purpose, that receives data and instructions from, and transmits data and instructions to, a storage system, at least one input device, and at least one output device, and/or interprets an in-vehicle chilled water pump control method.
Computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on a machine, as a stand-alone software package partly on a machine and partly on a remote machine or entirely on a remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A vehicle intercooling water pump control method is characterized by being applied to a vehicle, wherein the vehicle comprises a vehicle intercooling water pump control device, an engine and a mesocooling water pump, and the vehicle intercooling water pump control method is executed by the vehicle intercooling water pump control device; the method comprises the following steps:
acquiring parameter information of a vehicle;
determining the working condition state of the engine according to the parameter information of the vehicle;
and controlling the output power of the intercooling water pump according to the working condition state of the engine so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine.
2. The vehicle intercooler water pump control method of claim 1, wherein the operating condition state comprises a start state;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
when the engine enters the starting state, judging the initial starting state of the engine according to the parameter information of the vehicle, and generating a first judgment result;
and determining the output power of the intercooling water pump according to the first judgment result.
3. The vehicle intercooler water pump control method of claim 2, wherein the determining the output power of the intercooler water pump according to the first determination result comprises:
when the engine is in a cold start state, controlling the intercooling water pump to be closed;
when the engine is in a warm-up starting state, controlling the intercooling water pump to output first output power according to a first preset condition;
wherein the initial starting state comprises a cold starting state and/or a warm starting state.
4. The method of claim 1, wherein the operating condition state comprises an operating state;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
when the engine enters the running state, judging the running state of the engine and generating a second judgment result;
and determining the output power of the intercooling water pump according to the second judgment result.
5. The vehicle intercooler water pump control method of claim 4, wherein the determining the output power of the intercooler water pump according to the second determination result comprises:
when the engine is in an idling state, controlling the intercooling water pump to output second output power according to a second preset condition;
and when the engine is in a normal running state, controlling the intercooling water pump to output a third output power according to a third preset condition.
6. The method of claim 5, wherein the parameter information of the vehicle includes a running speed of the vehicle;
the determining the output power of the intercooling water pump according to the second judgment result further includes:
determining a power correction value according to the running speed of the vehicle;
calculating the corrected output power of the intercooling water pump according to the power corrected value and the output power of the intercooling water pump in the running state;
and controlling the intercooling water pump to output the corrected output power.
7. The vehicle intercooler water pump control method of claim 1, wherein the operating condition state comprises a shutdown state; the parameter information of the vehicle comprises the power type of the vehicle;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
when the engine enters the stop state, judging the working state of the intercooling water pump before the engine enters the stop state;
when the intercooling water pump is in a running state, controlling the intercooling water pump to output fourth output power for a first preset time according to the power type of the vehicle;
and when the intercooling water pump is in a closed state, controlling the intercooling water pump to keep the closed state.
8. The vehicle intercooler water pump control method of claim 7, wherein the parameter information of the vehicle includes a running speed of the vehicle and a down time including a running time of the intercooler water pump after an engine of the vehicle is stopped;
when the intercooling water pump is in a running state, controlling the intercooling water pump to output fourth output power for a first preset time according to the power type of the vehicle, wherein the fourth output power comprises the following steps:
when the vehicle is a non-hybrid vehicle, controlling the intercooling water pump to output the fourth output power, and when the shutdown time of the engine is greater than a shutdown time threshold value, controlling the intercooling water pump to be closed;
and when the vehicle is a hybrid vehicle, comparing the running speed of the vehicle with a preset vehicle speed threshold value, and controlling the starting time of the intercooling water pump according to the comparison result.
9. The method for controlling the intercooler water pump in the vehicle of claim 1, wherein the determining the operating condition state of the engine according to the parameter information of the vehicle comprises:
verifying the validity of the parameter information of the vehicle and outputting a verification result;
when the verification result is that the parameter information of the vehicle is invalid, controlling the intercooling water pump to output fixed output power;
and when the verification result is that the parameter information of the vehicle is valid, determining the working condition state of the engine according to the valid parameter information of the vehicle.
10. The method for controlling an intercooler water pump in a vehicle of claim 1, wherein the operating condition state of the engine further comprises: a power-down state and a power-up state;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
when the engine is in the power-off state, controlling the intercooling water pump to be closed;
when the engine enters the power-on state, controlling the intercooling water pump to keep a closing state;
judging that the vehicle meets a fourth preset condition, and controlling the vehicle to enter a next working condition state;
wherein the fourth preset condition includes: the engine is not in a flash state and the vehicle is not in a collision.
11. The method for controlling an intercooler water pump in a vehicle of claim 1, wherein the operating condition state of the engine further comprises: a power-down delay state;
the control of the output power of the intercooling water pump according to the working condition state of the engine to correspondingly adjust the intake temperature of the engine under different working condition states of the engine comprises the following steps:
and when the engine enters the power-off delay state, controlling the intercooling water pump to output fifth output power according to a fifth preset condition.
12. An intercooler water pump control device in a vehicle, characterized by comprising:
the parameter acquisition module is used for acquiring parameter information of the vehicle;
the working condition determining module is used for determining the working condition state of the engine according to the parameter information of the vehicle;
and the water pump control module is used for controlling the output power of the intercooling water pump according to the working condition state of the engine so as to correspondingly adjust the air inlet temperature of the engine under different working condition states of the engine.
13. A storage medium containing computer executable instructions for performing the method of controlling an intercooler water pump in a vehicle as claimed in any one of claims 1 to 11 when executed by a computer processor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310042202.1A CN115962044A (en) | 2023-01-13 | 2023-01-13 | Method and device for controlling cold water pump in vehicle and storage medium |
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| CN202310042202.1A CN115962044A (en) | 2023-01-13 | 2023-01-13 | Method and device for controlling cold water pump in vehicle and storage medium |
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| CN202310042202.1A Pending CN115962044A (en) | 2023-01-13 | 2023-01-13 | Method and device for controlling cold water pump in vehicle and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028017A (en) * | 2023-08-04 | 2023-11-10 | 广州汽车集团股份有限公司 | Vehicle intercooling water pump control method and vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028017A (en) * | 2023-08-04 | 2023-11-10 | 广州汽车集团股份有限公司 | Vehicle intercooling water pump control method and vehicle |
| CN117028017B (en) * | 2023-08-04 | 2024-03-19 | 广州汽车集团股份有限公司 | Vehicle intercooling water pump control method and vehicle |
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