Control method and device of electronic pump, electronic equipment and vehicle

Abstract

The application provides a control method and device of an electronic pump, electronic equipment and a vehicle. The control method is applied to an engine control module of a hybrid vehicle. The control method comprises the following steps: acquiring an ambient temperature, an engine liquid medium temperature, an engine load, an engine speed, a vehicle speed and a heating demand signal; determining a heating duty cycle of the corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature; if the engine liquid medium temperature is in a preset temperature range, determining a cooling duty cycle of the corresponding electronic pump based on the engine load, the engine speed, the vehicle speed and the engine liquid medium temperature; determining a flow duty cycle of the electronic pump based on a duty cycle obtained by taking the maximum value of the heating duty cycle and the cooling duty cycle; and if the heating demand signal meets a preset condition, responding to the heating demand of a user based on the flow duty cycle, so that the warm-up time of the engine is reduced, and the energy consumption of the hybrid vehicle is reduced.

Description

Technical Field

[0001] The present application belongs to the field of vehicle control technology, and in particular relates to a control method, device, electronic equipment and vehicle for an electronic pump. Background Art

[0002] In current fuel-powered vehicles equipped with electronic water pumps, the engine control module (ECM) first meets the heating needs of the air-conditioning (AC), then sets the AC heating duty cycle based on the engine water temperature, while simultaneously warming up the engine. Furthermore, in current hybrid vehicles, the ECM may respond to the AC's heating needs even when the AC is not actively heating. These situations increase the engine warm-up time, causing the electronic water pump to operate at a high duty cycle, resulting in wasted energy.

[0003] The existing technology has the problem that the warm-up time of the engine becomes longer, causing the electronic water pump to operate at a high duty cycle, thereby causing energy waste. Summary of the Invention

[0004] The embodiments of the present application provide a control method, device, electronic device and vehicle for an electronic pump, which can solve the problem that the engine warm-up time becomes longer, causing the electronic water pump to operate at a high duty cycle and thus causing energy waste.

[0005] In a first aspect, an embodiment of the present application provides a method for controlling an electronic pump, which is applied to an engine control module of a hybrid vehicle. The control method includes:

[0006] Obtain ambient temperature, engine fluid temperature, engine load, engine speed, vehicle speed and heating demand signals;

[0007] determining a heating duty cycle of a corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature;

[0008] If the engine liquid medium temperature is within a preset temperature range, determining a corresponding cooling duty cycle of the electronic pump based on the engine load, the engine speed, the vehicle speed, and the engine liquid medium temperature;

[0009] determining a flow rate duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle;

[0010] If the heating demand signal meets a preset condition, the electronic pump is controlled to respond to the user's heating demand with the flow duty cycle.

[0011] In one embodiment, the preset temperature zones include a first preset temperature zone, a second preset temperature zone, and a third preset temperature zone;

[0012] The step of outputting a corresponding cooling duty ratio of the electronic pump based on the engine load, the engine speed, the vehicle speed, and the engine liquid medium temperature if the engine liquid medium temperature is within a preset temperature range includes:

[0013] If the temperature of the engine liquid medium is within a first preset temperature range, outputting a corresponding first cooling duty cycle of the electronic pump based on the engine load and the engine speed;

[0014] If the temperature of the engine liquid medium is within a second preset temperature range, outputting a corresponding second cooling duty ratio of the electronic pump based on the engine load and the engine speed;

[0015] If the temperature of the engine liquid medium is in a third preset temperature range, a corresponding third cooling duty cycle of the electronic pump is output based on the vehicle speed and the engine liquid medium temperature.

[0016] In one embodiment, the range of the first preset temperature zone is T≦T1;

[0017] The range of the second preset temperature zone is T1<T≦T2;

[0018] The range of the third preset temperature zone is T2<T;

[0019] Wherein, T is the temperature of the engine liquid medium, T1 is the first preset temperature, and T2 is the second preset temperature.

[0020] In one embodiment, the preset condition includes a first preset condition and a second preset condition, and the heating request signal includes a temperature damper opening signal and a blower speed signal;

[0021] The step of responding to the user's heating demand based on the flow duty cycle if the heating request signal meets the preset condition includes:

[0022] The temperature damper opening signal satisfies the first preset condition, and the blower speed signal satisfies the second preset condition, and the user's heating demand is responded to based on the flow duty cycle.

[0023] In one embodiment, the first preset condition is that the temperature damper opening signal is greater than 1, and the second preset condition is that the blower speed signal is greater than 0.

[0024] In one embodiment, the preset condition further includes a third preset condition and a fourth preset condition, and the heating request signal further includes a warm air large circulation signal and a multi-way valve fault signal;

[0025] The step of responding to the user's heating demand based on the flow duty cycle if the heating request signal meets the preset conditions further includes:

[0026] The warm air large circulation signal satisfies the third preset condition, and the multi-way valve fault signal satisfies the fourth preset condition, and the user's heating demand is responded to based on the flow duty cycle.

[0027] In one embodiment, the third preset condition is that the warm air large circulation signal is equal to 1, and the fourth preset condition is that the multi-way valve fault signal is a no-fault signal.

[0028] In a second aspect, an embodiment of the present application provides a control device for an electronic pump, which is applied to a hybrid vehicle. The control device includes:

[0029] An acquisition module is used to obtain ambient temperature, engine liquid medium temperature, engine load, engine speed, vehicle speed and heating demand signals;

[0030] A first determining module is configured to determine a heating duty cycle of a corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature;

[0031] a second determining module, configured to determine a corresponding cooling duty cycle of the electronic pump based on the engine load, the engine speed, the vehicle speed, and the engine liquid medium temperature if the engine liquid medium temperature is within a preset temperature range;

[0032] a third determining module, configured to determine a flow duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle;

[0033] The control module is used to control the electronic pump to respond to the user's heating demand with the flow duty cycle if the heating demand signal meets the preset conditions.

[0034] In a third aspect, an embodiment of the present application provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in any one of the contents of the first aspect is implemented.

[0035] In a fourth aspect, an embodiment of the present application provides a vehicle, comprising a control device for an electronic pump as described in the second aspect above, wherein the control device executes a method as described in any one of the first aspect above.

[0036] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when executed on a terminal device, enables the terminal device to execute any of the methods described in the first aspect above.

[0037] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0038] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0039] The present application is applied to the engine control module of a hybrid vehicle, by obtaining the ambient temperature, engine liquid medium temperature, engine load, engine speed, vehicle speed and heating demand signal; determining the heating duty cycle of the corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature; if the engine liquid medium temperature is in a preset temperature zone, determining the cooling duty cycle of the corresponding electronic pump based on the engine load, engine speed, vehicle speed and engine liquid medium temperature; determining the flow duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle; if the heating demand signal meets the preset conditions, controlling the electronic pump to respond to the user's heating demand with the flow duty cycle, because only when the user's heating demand signal for the air conditioner meets the preset conditions, the heating duty cycle of the air conditioner heating and the cooling duty cycle of the engine warm-up are calculated to take the larger value and determine the flow duty cycle of the electronic pump, will the flow duty cycle be used to respond to the user's heating demand for the air conditioner, thereby reducing the engine warm-up time, avoiding the electronic pump from always operating at a high duty cycle, and thus reducing the energy consumption of the hybrid vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 This is a flow chart of a method for controlling an electronic pump provided in one embodiment of the present application;

[0042] Figure 2 This is a flow chart of outputting a corresponding cooling duty cycle of an electronic pump based on engine load, engine speed, and engine liquid medium temperature when the engine liquid medium temperature is within a preset temperature range, provided by one embodiment of the present application;

[0043] Figure 3 It is a structural schematic diagram of a control device for an electronic pump provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0045] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0046] It will also be understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0047] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0048] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0049] In current fuel-powered vehicles equipped with electronic water pumps, the engine control module (ECM) first meets the heating needs of the air-conditioning (AC), then sets the AC heating duty cycle based on the engine water temperature, while simultaneously warming up the engine. Furthermore, in current hybrid vehicles, the ECM may respond to the AC's heating needs even when the AC is not actively heating. These situations increase the engine warm-up time, causing the electronic water pump to operate at a high duty cycle, resulting in wasted energy.

[0050] The existing technology has the problem that the warm-up time of the engine becomes longer, causing the electronic water pump to operate at a high duty cycle, thereby causing energy waste.

[0051] The present application is applied to the engine control module of a hybrid vehicle, by obtaining the ambient temperature, engine liquid medium temperature, engine load, engine speed, vehicle speed and heating demand signal; determining the heating duty cycle of the corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature; if the engine liquid medium temperature is in a preset temperature zone, determining the cooling duty cycle of the corresponding electronic pump based on the engine load, engine speed, vehicle speed and engine liquid medium temperature; determining the flow duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle; if the heating demand signal meets the preset conditions, responding to the user's heating demand based on the flow duty cycle, because only when the user's heating demand signal for the air conditioner meets the preset conditions, the heating duty cycle of the air conditioner heating and the cooling duty cycle of the engine warm-up are calculated to take the larger value and determine the flow duty cycle of the electronic pump, will the flow duty cycle be used to respond to the user's air conditioner heating demand, thereby reducing the engine warm-up time, avoiding the electronic pump from always operating at a high duty cycle, and thus reducing the energy consumption of the hybrid vehicle.

[0052] The technical solution of this application is described below through specific embodiments.

[0053] First, as Figure 1 As shown, this embodiment provides a control method for an electronic pump, which is applied to an engine control module of a hybrid vehicle. The control method includes:

[0054] S100, obtaining ambient temperature, engine fluid medium temperature, engine load, engine speed, vehicle speed and heating demand signal.

[0055] In one embodiment, the engine control module (ECM) acquires ambient temperature, engine fluid temperature, engine load, engine speed, vehicle speed, and air conditioning heating demand signals to control the duty cycle of the electronic pump based on vehicle cost and energy conservation. The engine fluid comprises water, and the electronic pump corresponds to an electronic water pump. In this embodiment, there are no specific restrictions on the engine fluid and the corresponding electronic pump; they can be selected based on the requirements of different vehicle models.

[0056] It should be noted that the electronic pump in this embodiment is an electronic pump connected to the engine control module, and is mainly used to warm up the engine based on the control instructions of the engine control module.

[0057] S200 : Determine a heating duty cycle of a corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature.

[0058] In one embodiment, when a user turns on the defrost, defogger, heating or battery heating function, the engine control module determines the heating duty cycle of the corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature, so that the electronic water pump with the lowest duty cycle can also meet the heating needs of the air conditioner, avoiding excessive occupation of the electronic water pump's duty cycle and reducing energy consumption.

[0059] In one embodiment, the heating duty cycle of the electronic pump is determined based on the vehicle's specific water pump flow requirements, water pump power, and air conditioning heating requirements, along with the ambient temperature and engine fluid temperature. If the engine water temperature remains constant, the heating duty cycle increases as the ambient temperature rises. If the ambient temperature remains constant, the heating duty cycle of the electronic water pump also increases as the engine water temperature rises.

[0060] In one embodiment, as shown in Table 1, when the ambient temperature is -20°C, the engine water temperature rises from 10°C to 80°C, and the corresponding heating duty cycle of the electronic pump rises from 20% to 40%; when the ambient temperature is -10°C, the engine water temperature rises from 10°C to 80°C, and the corresponding heating duty cycle of the electronic pump rises from 20% to 40%; when the ambient temperature is 0°C, the engine water temperature rises from 10°C to 80°C, and the corresponding heating duty cycle of the electronic pump rises from 30% to 40%. % to 50%; when the ambient temperature is 10℃, the engine water temperature rises from 10℃ to 80℃, and the corresponding heating duty cycle of the electronic pump increases from 40% to 55%; when the ambient temperature is 20℃, the engine water temperature rises from 10℃ to 80℃, and the corresponding heating duty cycle of the electronic pump increases from 40% to 60%; when the ambient temperature is 25℃, the engine water temperature rises from 10℃ to 80℃, and the corresponding heating duty cycle of the electronic pump increases from 40% to 60%.

[0061] Table 1 Ambient temperature, engine water temperature and corresponding heating duty cycle of electronic pump

[0062]

[0063] In one embodiment, when the engine water temperature is 40° C. and the ambient temperature is 0° C., the heating duty cycle of the corresponding electronic water pump is 35%.

[0064] S300 , if the engine liquid medium temperature is within a preset temperature range, determining a corresponding cooling duty cycle of the electronic pump based on the engine load, the engine speed, the vehicle speed, and the engine liquid medium temperature.

[0065] In one embodiment, if the engine liquid medium temperature is within a preset temperature range, the cooling duty cycle of the corresponding electronic pump is determined based on the engine load, engine speed and engine liquid medium temperature, so that the engine control module can accurately control the electronic water pump to adjust the corresponding cooling duty cycle according to the specific operating conditions, thereby reducing the energy consumption of the hybrid vehicle.

[0066] In one embodiment, the preset temperature zones include a first preset temperature zone, a second preset temperature zone, and a third preset temperature zone.

[0067] In one embodiment, Figure 2 As shown, if the engine fluid medium temperature is within a preset temperature range, the step of outputting a corresponding cooling duty cycle of the electronic pump based on the engine load, engine speed, and engine fluid medium temperature includes:

[0068] S310 : If the temperature of the engine liquid medium is within a first preset temperature range, output a first cooling duty cycle of the electronic pump corresponding to the engine load and the engine speed.

[0069] In one embodiment, the range of the first preset temperature zone is T≦T1, where T is the temperature of the engine liquid medium and T1 is the first preset temperature.

[0070] In one embodiment, the first preset temperature T1 is 88°C. If the engine water temperature is in the first preset temperature zone, the engine control module outputs a first cooling duty cycle of the corresponding electronic pump based on the engine load and engine speed. When the engine speed remains unchanged, the first cooling duty cycle increases with the increase of the engine load; when the engine load remains unchanged, the first cooling duty cycle also increases with the increase of the engine speed.

[0071] In one embodiment, as shown in Table 2, when the engine load is 15%, the engine speed increases from 650 rpm to 6000 rpm, and the corresponding first cooling duty cycle of the electronic pump increases from 15% to 48%; when the engine load is 180%, the engine speed increases from 650 rpm to 6000 rpm, and the corresponding first cooling duty cycle of the electronic pump increases from 15% to 63%.

[0072] Table 2 Engine load, engine speed and corresponding first cooling duty cycle of the electronic pump

[0073]

[0074] In one embodiment, when the engine load is 50% and the engine speed is 2500 rpm, the first cooling duty cycle is 19%.

[0075] S320 : If the temperature of the engine liquid medium is within a second preset temperature range, output a corresponding second cooling duty cycle of the electronic pump based on the engine load and the engine speed.

[0076] In one embodiment, the range of the second preset temperature zone is T1<T≦T2, wherein T is the temperature of the engine liquid medium, T1 is the first preset temperature, and T2 is the second preset temperature.

[0077] In one embodiment, the first preset temperature T1 is 88°C, and the second preset temperature T2 is 100°C. If the engine water temperature is in the second preset temperature zone, the engine control module outputs a corresponding second cooling duty cycle of the electronic pump based on the engine load and engine speed. If the engine speed is less than 5000 rpm, when the engine speed remains unchanged, the second cooling duty cycle increases accordingly with the increase of the engine load; if the engine speed is greater than or equal to 5000 rpm, when the engine speed remains unchanged, the second cooling duty cycle remains consistent with the increase of the engine load; when the engine load remains unchanged, the second cooling duty cycle increases accordingly with the increase of the engine speed.

[0078] In one embodiment, as shown in Table 3, when the engine load is 15%, the engine speed increases from 650 rpm to 6000 rpm, and the corresponding second cooling duty cycle of the electronic pump increases from 18% to 100%; when the engine load is 180%, the engine speed increases from 650 rpm to 6000 rpm, and the corresponding second cooling duty cycle of the electronic pump increases from 18% to 100%.

[0079] Table 3 Engine load, engine speed and corresponding second cooling duty cycle of the electronic pump

[0080]

[0081]

[0082] In one embodiment, when the engine load is 50% and the engine speed is 2500 rpm, the first cooling duty cycle is 24%.

[0083] It should be noted that the first cooling duty ratios in Table 2 and the second cooling duty ratios in Table 3 can be recalibrated based on the specific vehicle model and are not limited to the duty ratios in the table. Furthermore, the first cooling duty ratios in Table 2 and the second cooling duty ratios in Table 3 are designed to meet the minimum water flow rate for engine warm-up, thereby saving vehicle fuel consumption.

[0084] S330: If the temperature of the engine liquid medium is within a third preset temperature range, output a corresponding third cooling duty cycle of the electronic pump based on the vehicle speed and the temperature of the engine liquid medium.

[0085] In one embodiment, the range of the third preset temperature zone is T2<T, where T is the temperature of the engine liquid medium and T2 is the second preset temperature.

[0086] In one embodiment, the second preset temperature T2 is 100°C. If the engine water temperature is in the third preset temperature zone, the engine control module outputs the corresponding third cooling duty cycle of the electronic pump based on the vehicle speed and the engine water temperature. If the engine water temperature is less than 109°C, when the engine water temperature remains unchanged, the third cooling duty cycle increases accordingly with the increase of the vehicle speed; if the engine water temperature is greater than or equal to 109°C, when the engine water temperature remains unchanged, the third cooling duty cycle remains consistent with the increase of the vehicle speed; when the vehicle speed remains unchanged, as the engine water temperature increases to 107°C, the third cooling duty cycle also increases accordingly; if the engine water temperature is greater than or equal to 111°C, when the vehicle speed remains unchanged, the third cooling duty cycle remains unchanged, both at 100%; if the engine water temperature is equal to 109°C, the third cooling duty cycle is 85% at any vehicle speed.

[0087] In one embodiment, as shown in Table 3, when the vehicle speed is 0 km / h and the engine water temperature rises from 100° C. to 109° C., the corresponding third cooling duty cycle increases from 50% to 85%.

[0088] Table 3 Vehicle speed, engine water temperature and corresponding third cooling duty cycle of the electronic pump

[0089]

[0090] In one embodiment, when the vehicle speed is 120 km / h and the engine water temperature is 105° C., the third cooling duty cycle is 80%.

[0091] S400 : Determine the flow duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle.

[0092] In one embodiment, the flow duty cycle of the electronic pump is determined based on the larger value of the heating duty cycle and the cooling duty cycle, thereby avoiding the situation where the flow duty cycle of the electronic pump is too small, thereby extending the warm-up time of the engine. A larger duty cycle is used to determine the flow duty cycle, thereby reducing the warm-up time of the engine.

[0093] S500: If the heating demand signal meets the preset conditions, respond to the user's heating demand based on the flow duty cycle.

[0094] In one embodiment, if the heating demand signal meets the preset conditions, the user's heating demand is responded to based on the flow duty cycle. Only when the heating demand signal meets the preset conditions will the heating demand of the air conditioner be responded to, avoiding air conditioning heating in response to other abnormal signals, thereby maintaining the flow duty cycle of the electronic pump used for engine warm-up, and further reducing the engine warm-up time.

[0095] In both gasoline-powered and hybrid vehicles, the heating demand signal includes the temperature damper opening signal and blower speed signal from the air conditioner. The air conditioner controller transmits these signals to the engine control module (ECM). If the vehicle has multiple temperature dampers, the controller calculates the maximum value of the opening percentage signals from these dampers, determines the maximum opening, and sends this signal to the ECM.

[0096] In one embodiment, the preset condition includes a first preset condition and a second preset condition, and the heating request signal includes a temperature damper opening signal and a blower speed signal.

[0097] In one embodiment, if the heating request signal meets a preset condition, the step of responding to the user's heating demand based on the flow duty cycle includes:

[0098] The temperature damper opening signal meets the first preset condition, and the blower speed signal meets the second preset condition, and the user's heating demand is responded to based on the flow duty cycle.

[0099] In one embodiment, the first preset condition is that the temperature damper opening signal is greater than 1, and the second preset condition is that the blower speed signal is greater than 0.

[0100] In one embodiment, if the temperature damper opening signal is greater than 1 and the blower speed signal is greater than 0, the user's heating demand is responded to based on the flow duty cycle. Only when the temperature damper opening signal and the blower speed signal both meet the preset conditions will the air conditioner's heating demand be responded to, thereby maintaining the flow duty cycle of the electronic pump used for engine warm-up and further reducing the engine warm-up time.

[0101] In one embodiment, when the engine control module is responding to the heating demand of the air conditioner, a heating demand signal shows an abnormality. The engine control module receives at least one of the temperature damper opening signal or the blower speed signal that meets the preset conditions, and then continues to use the flow duty cycle to respond to the user's air conditioner heating demand.

[0102] In addition, in another embodiment, if the engine control module receives the temperature damper opening signal ACActTempThrtlPosn as 0x65-7F: invalid value (Invalid Value), or the engine control module receives the blower speed signal ACFrntBlwrSpd as 0xF: initial value (Initial value), the engine control module no longer responds to the heating demand of the air conditioner.

[0103] It should be noted that hybrid vehicles also include a multi-way valve and a positive temperature coefficient heater (Positive Temperature Coefficient, PTC). The multi-way valve includes a two-position three-way valve or a four-way valve. The multi-way valve forms a large warm air circulation to meet more heating needs of users.

[0104] In one embodiment, the preset conditions further include a third preset condition and a fourth preset condition, and the heating request signal further includes a warm air large circulation signal and a multi-way valve failure signal.

[0105] In one embodiment, if the heating request signal meets the preset conditions, the step of responding to the user's heating demand based on the flow duty cycle further includes:

[0106] The warm air large circulation signal meets the third preset condition, and the multi-way valve fault signal meets the fourth preset condition, responding to the user's heating needs based on the flow duty cycle, wherein the warm air large circulation signal is also the multi-way valve status signal.

[0107] In one embodiment, the third preset condition is that the warm air large circulation signal is equal to 1, and the fourth preset condition is that the multi-way valve fault signal is a no-fault signal.

[0108] In one embodiment, in a hybrid vehicle, when the heating request signal satisfies the first preset condition and the second preset condition, if the warm air large circulation signal is equal to 1, and the multi-way valve fault signal is a no-fault signal (for example, the no-fault signal is 0x0: No error), after these four conditions are met, the engine control module uses the flow duty cycle to respond to the user's heating needs, avoiding frequent responses to the user's heating needs, thereby maintaining the flow duty cycle of the electronic pump used for engine warming, and further reducing the engine warm-up time.

[0109] In one embodiment, in a hybrid vehicle, when the engine control module is responding to the user's heating demand, a heating demand signal shows an abnormality. The engine control module receives at least one of the temperature damper opening signal, blower speed signal, warm air large circulation signal (or multi-way valve status signal ACVlvSts) or multi-way valve fault signal ACVlvError that meet the preset conditions, and continues to use the flow duty cycle to respond to the user's air-conditioning heating demand.

[0110] In addition, in another embodiment, in a hybrid vehicle, if the engine control module receives a temperature damper opening signal ACActTempThrtlPosn of 0x65-7F: invalid value (Invalid Value), or the engine control module receives a blower speed signal ACFrntBlwrSpd of 0xF: initial value (Initial value), the engine control module no longer responds to the heating demand of the air conditioner.

[0111] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0112] Compared with the prior art, this embodiment has the following beneficial effects:

[0113] This embodiment is applied to the engine control module of a hybrid vehicle, which obtains the ambient temperature, engine liquid medium temperature, engine load, engine speed, vehicle speed and heating demand signal; determines the corresponding heating duty cycle of the electronic pump based on the ambient temperature and the engine liquid medium temperature; if the engine liquid medium temperature is in a preset temperature range, determines the corresponding cooling duty cycle of the electronic pump based on the engine load, engine speed, vehicle speed and engine liquid medium temperature; determines the flow duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle; if the heating demand signal meets the preset conditions, responds to the user's heating demand based on the flow duty cycle. Only when the user's heating demand signal for the air conditioner meets the preset conditions, the heating duty cycle of the air conditioner heating and the cooling duty cycle of the engine warm-up are calculated to take the larger value and determine the flow duty cycle of the electronic pump, will the flow duty cycle be used to respond to the user's heating demand for the air conditioner, thereby reducing the engine warm-up time and avoiding the electronic pump from always operating at a high duty cycle, thereby reducing the energy consumption of the hybrid vehicle.

[0114] Second, as Figure 3 As shown, this embodiment provides a control device for an electronic pump, which is applied to a hybrid vehicle. The control device includes:

[0115] The acquisition module 100 is used to obtain the ambient temperature, the temperature of the engine liquid medium, the engine load, the engine speed, the vehicle speed and the heating demand signal.

[0116] The first determination module 200 is configured to determine a heating duty cycle of a corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature.

[0117] The second determining module 300 is configured to determine a corresponding cooling duty cycle of the electronic pump based on the engine load, the engine speed, and the engine liquid medium temperature if the engine liquid medium temperature is within a preset temperature range.

[0118] The third determining module 400 is configured to determine a flow duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle.

[0119] The control module 500 is used to control the electronic pump to respond to the user's heating demand with a flow duty cycle if the heating demand signal meets a preset condition.

[0120] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of this application. Their specific functions and technical effects can be found in the method embodiment section and will not be repeated here.

[0121] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0122] In a third aspect, this embodiment provides a terminal device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method as described in any one of the contents of the first aspect above is implemented.

[0123] In a fourth aspect, this embodiment further provides a vehicle, comprising the control device for the electronic pump as described in the second aspect, and the control device executes the method as described in any one of the contents of the first aspect.

[0124] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when executed on a terminal device, enables the terminal device to execute any one of the methods described in the first aspect above.

[0125] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0126] If the integrated module is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, it can implement the steps of the above-mentioned various method embodiments. Among them, the computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form.

[0127] The computer-readable medium may include at least any entity or device capable of carrying computer program code to a camera / terminal device, a recording medium, computer memory, read-only memory (ROM), random access memory (RAM), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Examples include USB flash drives, external hard drives, magnetic disks, or optical disks. In some jurisdictions, due to legislation and patent practice, computer-readable media cannot include electrical carrier signals or telecommunications signals.

[0128] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0129] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0130] In the embodiments provided in this application, it should be understood that the disclosed devices / modules and methods can be implemented in other ways. For example, the device / module embodiments described above are merely schematic. For example, the division of the modules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0131] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0132] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A method for controlling an electronic pump, characterized in that: An engine control module for a hybrid vehicle, the control method comprising: Acquiring ambient temperature, engine fluid temperature, engine load, engine speed, vehicle speed, and heating demand signals; the heating demand signals include a temperature damper opening signal and a blower speed signal; determining a heating duty cycle of a corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature; If the engine liquid medium temperature is within a preset temperature range, determining a corresponding cooling duty cycle of the electronic pump based on the engine load, the engine speed, the vehicle speed, and the engine liquid medium temperature; determining a flow duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle; If the temperature damper opening signal meets the first preset condition and the blower speed signal meets the second preset condition, the electronic pump is controlled to respond to the user's heating demand with the flow duty cycle; the first preset condition is that the temperature damper opening signal is greater than 1, and the second preset condition is that the blower speed signal is greater than 0.

2. The method according to claim 1, wherein The preset temperature zones include a first preset temperature zone, a second preset temperature zone and a third preset temperature zone; The step of determining the corresponding cooling duty cycle of the electronic pump based on the engine load, the engine speed, the vehicle speed, and the engine liquid medium temperature if the engine liquid medium temperature is within a preset temperature range includes: If the temperature of the engine liquid medium is within a first preset temperature range, determining a corresponding first cooling duty cycle of the electronic pump based on the engine load and the engine speed; If the temperature of the engine liquid medium is within a second preset temperature range, determining a corresponding second cooling duty cycle of the electronic pump based on the engine load and the engine speed; If the engine liquid medium temperature is in a third preset temperature range, a corresponding third cooling duty cycle of the electronic pump is determined based on the vehicle speed and the engine liquid medium temperature.

3. The method according to claim 2, wherein The range of the first preset temperature zone is T≦T1; The range of the second preset temperature zone is T1<T≦T2; The range of the third preset temperature zone is T2<T; Wherein, T is the temperature of the engine liquid medium, T1 is the first preset temperature, and T2 is the second preset temperature.

4. The method according to claim 1, wherein The heating demand signal also includes a warm air large circulation signal and a multi-way valve failure signal; The method further comprises: If the warm air large circulation signal meets the third preset condition and the multi-way valve fault signal meets the fourth preset condition, the user's heating demand is responded to based on the flow duty cycle; the third preset condition is that the warm air large circulation signal is equal to 1, and the fourth preset condition is that the multi-way valve fault signal is a no-fault signal.

5. A control device for an electronic pump, characterized in that: Applied to a hybrid vehicle, the control device comprises: An acquisition module is used to obtain the ambient temperature, the engine liquid medium temperature, the engine load, the engine speed, the vehicle speed and the heating demand signal; the heating demand signal includes a temperature damper opening signal and a blower speed signal; A first determining module is configured to determine a heating duty cycle of a corresponding electronic pump based on the ambient temperature and the engine liquid medium temperature; a second determining module, configured to determine a corresponding cooling duty cycle of the electronic pump based on the engine load, the engine speed, the vehicle speed, and the engine liquid medium temperature if the engine liquid medium temperature is within a preset temperature range; a third determining module, configured to determine a flow duty cycle of the electronic pump based on the heating duty cycle and the cooling duty cycle; A control module is used to control the electronic pump to respond to the user's heating demand with the flow duty cycle if the temperature damper opening signal meets a first preset condition and the blower speed signal meets a second preset condition; the first preset condition is that the temperature damper opening signal is greater than 1, and the second preset condition is that the blower speed signal is greater than 0.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to any one of claims 1 to 4 is implemented.

7. A vehicle, characterized in that: The vehicle comprises the electronic pump control device according to claim 5 , wherein the control device executes the method according to any one of claims 1 to 4 .

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