Range extender power control method, device and equipment, storage medium and vehicle

Abstract

The invention discloses a range extender power control method and device, equipment, a storage medium and a vehicle, and relates to the technical field of range extenders, the first battery temperature of a battery of the vehicle is obtained under the condition that the range extender of the vehicle is started, and then the matched generation power of the range extender is determined according to the first battery temperature; and the generated power of the range extender is adjusted from the preset initial generated power to the matched generated power, and the higher the first battery temperature is, the smaller the matched generated power is selected as the generated power of the range extender, so that the smaller the heat of components in the range extender is, and the higher the first battery temperature is, the smaller the matched generated power is selected as the generated power of the range extender. Therefore, the temperatures of the batteries at different initial temperatures after being raised are all smaller than the temperature threshold value, so that the over-temperature damage of the batteries caused by excessive temperature rise of the batteries is avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of range extenders, and specifically relates to a method, device, equipment, storage medium and vehicle for controlling the power of a range extender. Background Art

[0002] The range extender is a vehicle component that can provide additional electrical energy, thereby increasing the vehicle's mileage. The range extender consists of components such as an engine and a generator.

[0003] However, since the vehicle's battery is located next to the components in the range extender, when the vehicle's range extender generates electricity, the heat emitted by the components in the range extender is transferred to the vehicle's battery surface through convection and radiation, causing the battery to heat up. For example, the vehicle's battery is located in the middle of the vehicle, the engine is located in front of the battery, and the engine's exhaust pipe is located on the side of the battery. The heat emitted by the engine in the range extender and the engine's exhaust pipe causes the battery to heat up.

[0004] The power generation power of the range extender is positively correlated with the increase in battery temperature caused by the heating of the range extender. When the power generation power of the range extender is too large, the components in the range extender will heat up too much, causing the battery to heat up too much, making the battery temperature greater than the battery temperature threshold, resulting in battery overheating damage. Summary of the invention

[0005] The present application aims to provide a method, device, equipment, storage medium and vehicle for controlling the power of a range extender, which at least solves the problem in the prior art that when the power generation power of the range extender is too large, the components in the range extender generate excessive heat, causing the battery to heat up too much, resulting in overheating and damage to the battery.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a method for controlling the power of a range extender, the method comprising:

[0008] When a range extender of a vehicle is started, obtaining a first battery temperature of a battery of the vehicle;

[0009] determining a matching power generation power of the range extender according to the first battery temperature; wherein the first battery temperature is negatively correlated with the matching power generation power;

[0010] The power generation power of the range extender is adjusted from a preset initial power generation power to a matching power generation power.

[0011] In a second aspect, an embodiment of the present application further provides a device for controlling the power of a range extender, the device comprising:

[0012] A first acquisition module, configured to acquire a first battery temperature of a battery of the vehicle when a range extender of the vehicle is started;

[0013] a determination module, configured to determine a matching power generation power of the range extender according to the first battery temperature; the first battery temperature is negatively correlated with the matching power generation power;

[0014] The adjustment module is used to adjust the power generation power of the range extender from a preset initial power generation power to a matching power generation power.

[0015] In a third aspect, an embodiment of the present application further provides an electronic device comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0016] In a fourth aspect, an embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0017] In a fifth aspect, an embodiment of the present application further provides a vehicle, comprising a control device for the range extender power as described in the second aspect.

[0018] In an embodiment of the present application, when the range extender of the vehicle is started, a first battery temperature of the battery of the vehicle is obtained, and then the matching power generation power of the range extender is determined according to the first battery temperature, and then the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power. Since the first battery temperature is negatively correlated with the matching power generation power, a smaller matching power generation power is selected as the power generation power of the range extender for a higher first battery temperature (i.e., the initial temperature of the battery), so that the heat generated by the components in the range extender is less, and the amount of increase in the battery temperature is smaller, so that the temperature of the batteries with different initial temperatures after the increase is less than the temperature threshold, so as to avoid excessive temperature increase of the battery and cause overheating damage to the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a flow chart of the steps of a method for controlling the power of a range extender provided in an embodiment of the present application;

[0020] Figure 2 It is a flowchart of the specific steps of a method for controlling the power of a range extender provided in an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of a control process of a range extender power provided in an embodiment of the present application;

[0022] Figure 4is a schematic diagram of another range extender power control process provided by an embodiment of the present application;

[0023] Figure 5 is a block diagram of a range extender power control device provided in an embodiment of the present application;

[0024] Figure 6 It is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0027] The method for controlling the range extender power provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0028] Figure 1 is a flow chart of the steps of a method for controlling the power of a range extender provided in an embodiment of the present application, such as Figure 1 As shown, the method may include:

[0029] Step 101: When a range extender of a vehicle is started, obtain a first battery temperature of a battery of the vehicle.

[0030] It should be noted that vehicles equipped with a range extender include plug-in hybrid electric vehicles (PHEV), extended-range hybrid electric vehicles (REV), etc.; starting the vehicle's range extender means that the vehicle's range extender starts to generate electricity. When the vehicle's range extender is started, the vehicle's range extender generates electricity at a preset initial power generation power.

[0031] The first battery temperature of the battery is the temperature of the battery obtained when the range extender of the vehicle is started, and the first battery temperature of the battery is less than a temperature threshold of the battery.

[0032] In some embodiments, the vehicle's battery may be a lithium-ion power battery; the vehicle's range extender generates electricity and discharges it to other vehicles or loads, that is, the vehicle's range extender's external discharge includes vehicle-to-vehicle (V2V) discharge, vehicle-to-load (V2L) discharge, etc.

[0033] In the embodiment of the present application, when the range extender of the vehicle is started, a first battery temperature of the battery of the vehicle is obtained, and then the matching power generation power of the range extender is determined according to the first battery temperature.

[0034] Step 102: Determine the matching power generation power of the range extender according to the first battery temperature; the first battery temperature is negatively correlated with the matching power generation power.

[0035] It should be noted that, when the range extender is generating electricity at the matching power generation of the range extender, the temperature of the battery after it is increased is less than the temperature threshold of the battery, and the battery can operate normally to avoid overheating damage to the battery. Specifically, when the range extender is generating electricity at the matching power generation of the range extender, the temperature of the battery after it is increased is the sum of the increase in battery temperature caused by the heat dissipated by the components in the range extender and the first battery temperature of the battery; the higher the first battery temperature of the battery, the smaller the value obtained by subtracting the first battery temperature from the temperature threshold of the battery, that is, the smaller the allowable increase in the battery temperature; since the first battery temperature is negatively correlated with the matching power generation, that is, the higher the first battery temperature, the smaller the matching power generation, so that the components in the range extender generate less heat, thereby causing a smaller increase in the battery temperature, so that the increase in the battery temperature is less than or equal to the allowable increase in the battery temperature, so as to achieve that the temperature of the battery after it is increased is less than the temperature threshold of the battery.

[0036] In the embodiment of the present application, the matching power generation power of the range extender is determined according to the first battery temperature, and then the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power.

[0037] Step 103: adjusting the power generation power of the range extender from a preset initial power generation power to a matching power generation power.

[0038] It should be noted that, when the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power, the range extender generates electricity at the matching power generation power of the range extender.

[0039] In the embodiment of the present application, the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power, so that the temperature of the battery after rising is less than the temperature threshold, so as to avoid excessive temperature rise of the battery causing overheating damage to the battery.

[0040] To summarize, in the embodiment of the present application, when the range extender of the vehicle is started, the first battery temperature of the battery of the vehicle is obtained, and then the matching power generation power of the range extender is determined according to the first battery temperature, and then the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power. Since the first battery temperature is negatively correlated with the matching power generation power, the higher the first battery temperature (i.e., the initial temperature of the battery), the smaller the matching power generation power is selected as the power generation power of the range extender, so that the heat generated by the components in the range extender is less, and the increase in the battery temperature is caused to be smaller, so that the temperature of the batteries with different initial temperatures after the increase is less than the temperature threshold, so as to avoid excessive temperature increase of the battery and cause overheating damage to the battery.

[0041] Figure 2 is a specific step flow chart of the range extender power control method provided in the embodiment of the present application, such as Figure 2 As shown, the method may include:

[0042] Step 201: When a range extender of a vehicle is started, obtain a first battery temperature of a battery of the vehicle.

[0043] The implementation of this step is similar to the implementation process in the above step 101, and will not be repeated here.

[0044] Optionally, in some embodiments, the battery includes a plurality of battery cells, and obtaining the first battery temperature of the battery of the vehicle includes the following sub-steps:

[0045] Sub-step 2011: obtaining a first cell temperature of each cell in the battery.

[0046] It should be noted that the first battery cell temperature is the temperature of the battery cell obtained when the range extender of the vehicle is started.

[0047] In the embodiment of the present application, the first cell temperature of each cell in the battery is obtained, thereby obtaining the highest first cell temperature among the first cell temperatures, and the highest first cell temperature is determined as the first battery temperature.

[0048] Sub-step 2012: acquiring a first battery cell temperature having the highest temperature among the first battery cell temperatures, and determining the first battery cell temperature having the highest temperature as the first battery temperature.

[0049] In the embodiment of the present application, the highest first battery cell temperature among the first battery cell temperatures is obtained, and the highest first battery cell temperature is determined as the first battery temperature, and then the matching power generation power of the range extender is determined according to the first battery temperature.

[0050] By executing sub-steps 2011 to 2012, it can be achieved that the temperature of the first battery cell with the highest temperature is determined as the first battery temperature, so as to ensure that when the range extender generates electricity with the matching power generation of the range extender, the increased temperature of each battery cell of the battery is lower than the temperature threshold of the battery, so as to avoid overheating and damage to the battery.

[0051] Step 202: Determine a first target temperature interval to which the first battery temperature belongs from a preset temperature interval sequence.

[0052] Among them, the temperature interval sequence includes n temperature intervals, the temperature interval is an interval from a first endpoint temperature to a second endpoint temperature, the first endpoint temperature is less than the second endpoint temperature; the second endpoint temperature of the i-th temperature interval is equal to the first endpoint temperature of the i+1-th temperature interval, n is a positive integer, and i is a positive integer less than n.

[0053] Specifically, in some embodiments, the temperature interval is an interval greater than or equal to the first endpoint temperature and less than the second endpoint temperature; when the first battery temperature is equal to the second endpoint temperature of the i-th temperature interval, that is, the first battery temperature is equal to the first endpoint temperature of the i+1-th temperature interval, the first target temperature interval to which the first battery temperature belongs is the i+1-th temperature interval.

[0054] Optionally, in some embodiments, the first temperature interval is an interval below the second endpoint temperature, the nth temperature interval is an interval above the first endpoint temperature, the jth temperature interval is an interval from the first endpoint temperature to the second endpoint temperature, j is a positive integer greater than 1 and less than n. Specifically, the first temperature interval is an interval less than the second endpoint temperature, the nth temperature interval is an interval greater than or equal to the first endpoint temperature, and the jth temperature interval is an interval greater than or equal to the first endpoint temperature and less than the second endpoint temperature.

[0055] For example, the temperature interval sequence includes 4 temperature intervals, and the temperature intervals in the temperature interval sequence are temperature interval A1, temperature interval A2, temperature interval A3, and temperature interval A4, respectively, wherein temperature interval A1 is an interval less than 25 degrees Celsius, temperature interval A2 is an interval greater than or equal to 25 degrees Celsius and less than 30 degrees Celsius, temperature interval A3 is an interval greater than or equal to 30 degrees Celsius and less than 35 degrees Celsius, and temperature interval A4 is greater than or equal to 35 degrees Celsius.

[0056] The second endpoint temperature in temperature interval A1 is 25 degrees Celsius, the first endpoint temperature in temperature interval A2 is 25 degrees Celsius, the second endpoint temperature in temperature interval A2 is 30 degrees Celsius, the first endpoint temperature in temperature interval A3 is 30 degrees Celsius, the second endpoint temperature in temperature interval A3 is 35 degrees Celsius, and the first endpoint temperature in temperature interval A4 is 35 degrees Celsius.

[0057] When the first battery temperature is 28 degrees Celsius, since 28 degrees Celsius is greater than 25 degrees Celsius and less than 30 degrees Celsius, the first target temperature interval to which the first battery temperature belongs is temperature interval A2; when the first battery temperature is 35 degrees Celsius, the first target temperature interval to which the first battery temperature belongs is temperature interval A4.

[0058] In an embodiment of the present application, the first target temperature interval to which the first battery temperature belongs is determined from a preset temperature interval sequence, and then the first target power generation power corresponding to the first target temperature interval is obtained from the preset correspondence between the reference power generation power of the range extender and the temperature interval, and the first target power generation power is determined as the matching power generation power.

[0059] Step 203: Obtain a first target power generation corresponding to the first target temperature interval from a preset correspondence between the reference power generation of the range extender and the temperature interval, and determine the first target power generation as the matching power generation of the range extender.

[0060] Among them, in the preset corresponding relationship, the reference power generation power is negatively correlated with the second endpoint temperature or the first endpoint temperature of the temperature interval.

[0061] For example, the temperature interval sequence includes 4 temperature intervals, and the temperature intervals in the temperature interval sequence are temperature interval A1, temperature interval A2, temperature interval A3, and temperature interval A4, wherein temperature interval A1 is an interval less than 25 degrees Celsius, temperature interval A2 is an interval greater than or equal to 25 degrees Celsius and less than 30 degrees Celsius, temperature interval A3 is an interval greater than or equal to 30 degrees Celsius and less than 35 degrees Celsius, and temperature interval A4 is greater than or equal to 35 degrees Celsius;

[0062] The second endpoint temperature in temperature interval A1 is 25 degrees Celsius, the first endpoint temperature in temperature interval A2 is 25 degrees Celsius, the second endpoint temperature in temperature interval A2 is 30 degrees Celsius, the first endpoint temperature in temperature interval A3 is 30 degrees Celsius, the second endpoint temperature in temperature interval A3 is 35 degrees Celsius, and the first endpoint temperature in temperature interval A4 is 35 degrees Celsius;

[0063] The reference power generation includes reference power generation B1, reference power generation B2, reference power generation B3, and reference power generation B4, wherein the reference power generation B1 is greater than the reference power generation B2, the reference power generation B2 is greater than the reference power generation B3, and the reference power generation B3 is greater than the reference power generation B4;

[0064] The preset corresponding relationship is that the temperature interval A1 corresponds to the reference power generation B1, the temperature interval A2 corresponds to the reference power generation B2, the temperature interval A3 corresponds to the reference power generation B3, and the temperature interval A4 corresponds to the reference power generation B4;

[0065] When the first battery temperature is 28 degrees Celsius, since 28 degrees Celsius is greater than 25 degrees Celsius and less than 30 degrees Celsius, the first target temperature interval to which the first battery temperature belongs is temperature interval A2, and the first target power generation corresponding to the first target temperature interval is reference power generation B2.

[0066] In some embodiments, the reference power generation corresponding to the first temperature interval in the temperature interval sequence is the initial power generation.

[0067] In an embodiment of the present application, a first target power generation corresponding to a first target temperature interval is obtained from a preset correspondence between a reference power generation of the range extender and a temperature interval, and the first target power generation is determined as a matching power generation, thereby adjusting the power generation of the range extender from a preset initial power generation to a matching power generation.

[0068] Step 204: adjusting the power generation power of the range extender from a preset initial power generation power to a matching power generation power.

[0069] The implementation of this step is similar to the implementation process in the above step 103, and will not be repeated here.

[0070] Optionally, in some embodiments, the first endpoint temperature of each temperature interval has a corresponding preset reference temperature, and the preset reference temperature is less than the first endpoint temperature of the temperature interval corresponding to the preset reference temperature; after step 204, the method further includes the following steps:

[0071] Step 205: Obtain a second battery temperature of the battery.

[0072] It should be noted that the second battery temperature of the battery is the temperature of the battery obtained after the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power, and the second battery temperature of the battery is less than the temperature threshold of the battery.

[0073] In an embodiment of the present application, by obtaining the second battery temperature of the battery, and then comparing the second battery temperature with the first preset reference temperature and the second endpoint temperature of the first target temperature interval, respectively, when the second battery temperature is greater than or equal to the first preset reference temperature and the second battery temperature is less than the second endpoint temperature of the first target temperature interval, the power generation power of the range extender is maintained at the matching power generation power.

[0074] Optionally, in some embodiments, the battery includes a plurality of battery cells, and step 205 includes the following sub-steps:

[0075] Sub-step 2051: obtaining a second cell temperature of each cell in the battery.

[0076] It should be noted that the second battery cell temperature of the battery cell is the temperature of the battery cell obtained after the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power.

[0077] In the embodiment of the present application, the second cell temperature of each cell in the battery is obtained, thereby obtaining the second cell temperature with the highest temperature among the second cell temperatures, and the second cell temperature with the highest temperature is determined as the second battery temperature.

[0078] Sub-step 2052: acquiring the second battery cell temperature with the highest temperature among the second battery cell temperatures, and determining the second battery cell temperature with the highest temperature as the second battery temperature.

[0079] In an embodiment of the present application, by obtaining the highest second battery cell temperature among the second battery cell temperatures, and determining the highest second battery cell temperature as the second battery temperature, and then when the second battery temperature is greater than or equal to the first preset reference temperature, and the second battery temperature is less than the second endpoint temperature of the first target temperature interval, the power generation power of the range extender is maintained at the matching power generation power.

[0080] By executing sub-steps 2051 to 2052, it can be achieved that the second battery cell temperature with the highest temperature is determined as the second battery temperature, so that after the power generation power of the range extender is determined according to the second battery temperature, the increased temperature of each battery cell of the battery is lower than the temperature threshold of the battery, so as to avoid overheating damage to the battery.

[0081] Step 206: When the second battery temperature is greater than or equal to the first preset reference temperature and the second battery temperature is less than the second endpoint temperature of the first target temperature interval, the power generation power of the range extender is maintained at the matching power generation power; the first preset reference temperature is a preset reference temperature corresponding to the first endpoint temperature of the first target temperature interval.

[0082] In the embodiment of the present application, by maintaining the power generation power of the range extender at the matching power generation power when the second battery temperature is greater than or equal to the first preset reference temperature and the second battery temperature is less than the second endpoint temperature of the first target temperature interval, the frequency of adjusting the power generation power of the range extender can be reduced, which is beneficial to improving the stability of power generation of the range extender, improving the power generation efficiency of the range extender and the good user experience.

[0083] For example, the temperature interval sequence includes 4 temperature intervals, and the temperature intervals in the temperature interval sequence are temperature interval A1, temperature interval A2, temperature interval A3, and temperature interval A4, wherein temperature interval A1 is an interval less than 25 degrees Celsius, temperature interval A2 is an interval greater than or equal to 25 degrees Celsius and less than 30 degrees Celsius, temperature interval A3 is an interval greater than or equal to 30 degrees Celsius and less than 35 degrees Celsius, and temperature interval A4 is greater than or equal to 35 degrees Celsius;

[0084] The second endpoint temperature in temperature interval A1 is 25 degrees Celsius, the first endpoint temperature in temperature interval A2 is 25 degrees Celsius, the second endpoint temperature in temperature interval A2 is 30 degrees Celsius, the first endpoint temperature in temperature interval A3 is 30 degrees Celsius, the second endpoint temperature in temperature interval A3 is 35 degrees Celsius, and the first endpoint temperature in temperature interval A4 is 35 degrees Celsius;

[0085] The reference power generation includes reference power generation B1, reference power generation B2, reference power generation B3, and reference power generation B4, wherein the reference power generation B1 is greater than the reference power generation B2, the reference power generation B2 is greater than the reference power generation B3, and the reference power generation B3 is greater than the reference power generation B4;

[0086] The preset corresponding relationship is that the temperature interval A1 corresponds to the reference power generation B1, the temperature interval A2 corresponds to the reference power generation B2, the temperature interval A3 corresponds to the reference power generation B3, and the temperature interval A4 corresponds to the reference power generation B4;

[0087] When the first battery temperature is 28 degrees Celsius, since 28 degrees Celsius is greater than 25 degrees Celsius and less than 30 degrees Celsius, the first target temperature interval to which the first battery temperature belongs is temperature interval A2, the first target power generation corresponding to the first target temperature interval is reference power generation B2, and the reference power generation B2 is determined as the matching power generation; the first preset reference temperature (i.e., the preset reference temperature corresponding to 25 degrees Celsius in temperature interval A2) is 23 degrees Celsius;

[0088] When the second battery temperature is 24 degrees Celsius, since 24 degrees Celsius is greater than 23 degrees Celsius and less than 30 degrees Celsius, the power generation power of the range extender is maintained at the reference power generation power B2.

[0089] By executing steps 205 to 206, it is possible to maintain the power generation power of the range extender at the matching power generation power when the second battery temperature is greater than or equal to the first preset reference temperature and the second battery temperature is less than the second endpoint temperature of the first target temperature interval.

[0090] In some embodiments, after obtaining the second battery temperature of the battery, a second target temperature interval to which the second battery temperature belongs is determined from the temperature interval sequence, and then a second target power generation power corresponding to the second target temperature interval is obtained from a preset correspondence, and then the power generation power of the range extender is adjusted from the matching power generation power to the second target power generation power, so that the power generation power of the range extender adapts to the change in battery temperature and reduces the risk of battery overheating damage.

[0091] Optionally, in some embodiments, after step 205, the method further includes the following steps:

[0092] Step 207: When the second battery temperature is lower than the first preset reference temperature, or the second battery temperature is higher than or equal to the second endpoint temperature of the first target temperature interval, determine the second target temperature interval to which the second battery temperature belongs from the temperature interval sequence.

[0093] It should be noted that, when the second battery temperature is lower than the first preset reference temperature, it means that the battery temperature drops below the first preset reference temperature, and the battery can withstand more heat of the range extender. At this time, the power generation power of the range extender can be increased to improve the power generation efficiency of the range extender; when the second battery temperature is greater than or equal to the second endpoint temperature of the first target temperature interval, it means that the battery temperature rises to the second endpoint temperature or above the second endpoint temperature, the allowable increase in the battery temperature is reduced, and the power generation power of the range extender needs to be reduced to protect the battery from over-temperature damage.

[0094] In an embodiment of the present application, when the second battery temperature is less than the first preset reference temperature, or the second battery temperature is greater than or equal to the second endpoint temperature of the first target temperature interval, the second target temperature interval to which the second battery temperature belongs is determined from the temperature interval sequence, and then the second target power generation corresponding to the second target temperature interval is obtained from the preset corresponding relationship.

[0095] Step 208: Obtain a second target power generation corresponding to the second target temperature range from the preset corresponding relationship.

[0096] For example, the temperature interval sequence includes 4 temperature intervals, and the temperature intervals in the temperature interval sequence are temperature interval A1, temperature interval A2, temperature interval A3, and temperature interval A4, wherein temperature interval A1 is an interval less than 25 degrees Celsius, temperature interval A2 is an interval greater than or equal to 25 degrees Celsius and less than 30 degrees Celsius, temperature interval A3 is an interval greater than or equal to 30 degrees Celsius and less than 35 degrees Celsius, and temperature interval A4 is greater than or equal to 35 degrees Celsius;

[0097] The second endpoint temperature in temperature interval A1 is 25 degrees Celsius, the first endpoint temperature in temperature interval A2 is 25 degrees Celsius, the second endpoint temperature in temperature interval A2 is 30 degrees Celsius, the first endpoint temperature in temperature interval A3 is 30 degrees Celsius, the second endpoint temperature in temperature interval A3 is 35 degrees Celsius, and the first endpoint temperature in temperature interval A4 is 35 degrees Celsius;

[0098] The reference power generation includes reference power generation B1, reference power generation B2, reference power generation B3, and reference power generation B4, wherein the reference power generation B1 is greater than the reference power generation B2, the reference power generation B2 is greater than the reference power generation B3, and the reference power generation B3 is greater than the reference power generation B4;

[0099] The preset corresponding relationship is that the temperature interval A1 corresponds to the reference power generation B1, the temperature interval A2 corresponds to the reference power generation B2, the temperature interval A3 corresponds to the reference power generation B3, and the temperature interval A4 corresponds to the reference power generation B4;

[0100] When the first battery temperature is 28 degrees Celsius, since 28 degrees Celsius is greater than 25 degrees Celsius and less than 30 degrees Celsius, the first target temperature interval to which the first battery temperature belongs is temperature interval A2, the first target power generation corresponding to the first target temperature interval is reference power generation B2, and the reference power generation B2 is determined as the matching power generation; the first preset reference temperature (i.e., the preset reference temperature corresponding to 25 degrees Celsius in temperature interval A2) is 23 degrees Celsius;

[0101] When the second battery temperature is 22 degrees Celsius, since 22 degrees Celsius is less than 25 degrees Celsius, the second target temperature interval to which the second battery temperature belongs is temperature interval A1, and the second target power generation corresponding to the second target temperature interval is reference power generation B1;

[0102] When the second battery temperature is 32 degrees Celsius, since 32 degrees Celsius is greater than 30 degrees Celsius and less than 35 degrees Celsius, the second target temperature interval to which the second battery temperature belongs is temperature interval A3, and the second target power generation corresponding to the second target temperature interval is reference power generation B3.

[0103] In the embodiment of the present application, the second target power generation corresponding to the second target temperature range is obtained from the preset corresponding relationship, and then the power generation power of the range extender is adjusted from the matching power generation power to the second target power generation power.

[0104] Step 209: Adjust the power generation power of the range extender from the matching power generation power to the second target power generation power.

[0105] In the embodiment of the present application, the power generation power of the range extender is adjusted from the matching power generation power to the second target power generation power to adapt to the temperature change of the battery and avoid overheating damage to the battery.

[0106] By executing steps 207 to 209, it can be achieved that when the second battery temperature is less than the first preset reference temperature, the power generation power of the range extender is increased to improve the power generation efficiency of the range extender; when the second battery temperature is greater than or equal to the second endpoint temperature of the first target temperature interval, the power generation power of the range extender is reduced to protect the battery from over-temperature damage.

[0107] Optionally, in some embodiments, the first endpoint temperature of each temperature interval has a corresponding preset temperature difference, and the method further includes the following steps:

[0108] Step 210: Obtain a first endpoint temperature of the temperature interval.

[0109] In the embodiment of the present application, the preset reference temperature is obtained by acquiring the first endpoint temperature of the temperature interval and then subtracting the preset temperature difference corresponding to the first endpoint temperature of the temperature interval from the first endpoint temperature of the temperature interval.

[0110] Step 211 : subtract a preset temperature difference corresponding to the first endpoint temperature of the temperature interval from the first endpoint temperature of the temperature interval to obtain the preset reference temperature.

[0111] For example, the temperature interval is greater than or equal to 25 degrees Celsius and less than 30 degrees Celsius, the first endpoint temperature in temperature interval A2 is 25 degrees Celsius, and the preset temperature difference corresponding to the first endpoint temperature is 2 degrees Celsius. Then the preset reference temperature corresponding to the first endpoint temperature of the temperature interval is 23 degrees Celsius (obtained by subtracting 2 degrees Celsius from 25 degrees Celsius).

[0112] In an embodiment of the present application, a preset reference temperature is obtained by subtracting a preset temperature difference corresponding to the first endpoint temperature of the temperature interval from the first endpoint temperature of the temperature interval, and then the second battery temperature is compared with the first preset reference temperature. When the second battery temperature is greater than or equal to the first preset reference temperature and the second battery temperature is less than the second endpoint temperature of the first target temperature interval, the power generation power of the range extender is maintained at the matching power generation power.

[0113] By executing step 210 to step 211 , it can be achieved that the first endpoint temperature of each temperature interval has a corresponding preset reference temperature.

[0114] In some embodiments, when the second battery temperature is greater than or equal to the first preset reference temperature, and the second battery temperature is less than the second endpoint temperature of the first target temperature interval, after maintaining the power generation power of the range extender at the matching power generation power, the third battery temperature of the battery is obtained, and then the power generation power of the range extender is determined according to the third battery temperature. The specific implementation process of determining the power generation power of the range extender according to the third battery temperature is similar to the specific implementation process of determining the power generation power of the range extender according to the second battery temperature, and will not be repeated here;

[0115] When the second battery temperature is less than the first preset reference temperature, or the second battery temperature is greater than or equal to the second endpoint temperature of the first target temperature interval, after adjusting the power generation power of the range extender from the matching power generation power to the second target power generation power, the third battery temperature of the battery is obtained, and then the power generation power of the range extender is determined according to the third battery temperature. Specifically, when the third battery temperature is greater than or equal to the second preset reference temperature, and the third battery temperature is less than the second endpoint temperature of the second target temperature interval, the power generation power of the range extender is maintained at the second target power generation power; the second preset reference temperature is the preset reference temperature corresponding to the first endpoint temperature of the second target temperature interval; when the third battery temperature is less than the second preset reference temperature, or the third battery temperature is greater than or equal to the second endpoint temperature of the second target temperature interval, the third target temperature interval to which the third battery temperature belongs is determined from the temperature interval sequence, and then the third target power generation power corresponding to the third target temperature interval is obtained from the preset corresponding relationship, and the power generation power of the range extender is adjusted from the second target power generation power to the third target power generation power. The specific implementation process is similar to the above and will not be repeated here;

[0116] After the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power, the battery temperature of the battery is obtained once every preset time, and then the power generation power of the range extender is determined according to the battery temperature of the battery. The implementation process of determining the power generation power of the range extender according to the battery temperature of the battery is similar to the aforementioned implementation process and will not be repeated here.

[0117] In some embodiments, the corresponding relationship among the temperature range, the condition for reducing the power generation, the gear of the reference power generation, and the reference power generation is as shown in the following table (Table 1):

[0118]

[0119] Table 1

[0120] Wherein, T is the battery temperature of the battery, m is a positive integer, Ti is the endpoint temperature of the temperature interval (i is a positive integer less than or equal to m), ti is the preset temperature difference corresponding to Ti, for example, the second temperature interval is greater than or equal to T1 and less than T2, T1 is the first endpoint temperature of the second temperature interval, T2 is the second endpoint temperature of the second temperature interval, the reference power generation corresponding to the second temperature interval is P1, the gear of the reference power generation corresponding to the second temperature interval is 1 (first gear), and the power generation reduction condition corresponding to the second temperature interval is the battery of the battery The temperature T is less than T1-t1, that is, the battery temperature T of the battery is less than the value obtained by subtracting the preset temperature difference t1 corresponding to the first endpoint temperature from the first endpoint temperature T1 of the second temperature interval. When the battery temperature of the battery is less than T1-t1, the power generation power of the range extender is adjusted from P1 to P0, wherein P0 is the reference power generation power corresponding to the first temperature interval, and P0 is also the initial power generation power. The gear position of the reference power generation power corresponding to the first temperature interval is 0 (zeroth gear), the first temperature interval is less than T1, and T1 is the second endpoint temperature of the first temperature interval.

[0121] In some embodiments, reference Figure 3 The control process of the range extender power includes: X1, start; X2, use the range extender function, that is, start the range extender; X3, set the initial power generation power and obtain the first battery temperature; X4, determine the first target temperature interval to which the first battery temperature belongs, that is, determine the first target temperature interval to which the first battery temperature belongs from the preset temperature interval sequence; X5, execute the initial power generation power, that is, when the battery temperature of the battery belongs to the first temperature interval, adjust the power generation power of the range extender to the reference power generation power P0; X6, execute the first gear power generation power, that is, when the battery temperature of the battery belongs to the second temperature interval, adjust the power generation power of the range extender to the reference power generation power P1; X7, whether to adjust the power generation power, that is, determine whether the battery temperature is greater than or equal to the first preset reference temperature, and whether the battery temperature is less than the first preset reference temperature. The second endpoint temperature of a target temperature interval; X8, execute the second level of power generation, that is, when the battery temperature of the battery belongs to the third temperature interval, the power generation power of the range extender is adjusted to the reference power generation power P2; X9, whether to adjust the power generation power, that is, determine whether the battery temperature is greater than or equal to the first preset reference temperature, and whether the battery temperature is less than the second endpoint temperature of the first target temperature interval; X10, execute the last level of power generation, that is, when the battery temperature of the battery belongs to the m+1th temperature interval, the power generation power of the range extender is adjusted to the reference power generation power Pm; X11, whether to adjust the power generation power, that is, determine whether the battery temperature is greater than or equal to the first preset reference temperature, and whether the battery temperature is less than the second endpoint temperature of the first target temperature interval. The specific implementation process is similar to the above and will not be repeated here.

[0122] In some embodiments, reference Figure 4 The control process of the range extender power includes: Y1, start; Y2, start the range extender; Y3, obtain the safe temperature value of the battery, wherein the safe temperature value is the temperature reference value that the battery needs to cool down; Y4, whether the battery temperature is greater than or equal to the safe temperature value and the temperature change rate of the battery is greater than or equal to zero, wherein the temperature change rate of the battery is the value obtained by dividing the temperature change of the battery by the duration of the battery temperature change; Y5, reduce the power generation power of the range extender, that is, when the battery temperature is greater than or equal to the safe temperature value and the temperature change rate of the battery is greater than or equal to zero, reduce the power generation power of the range extender; Y6, generate electricity according to the current power generation power of the range extender, that is, when the battery temperature is less than the safe temperature value and the temperature change rate of the battery is less than zero, generate electricity according to the current power generation power of the range extender; Y7, end.

[0123] To summarize, in the embodiment of the present application, when the range extender of the vehicle is started, the first battery temperature of the battery of the vehicle is obtained, and then the matching power generation power of the range extender is determined according to the first battery temperature, and then the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power. Since the first battery temperature is negatively correlated with the matching power generation power, the higher the first battery temperature (i.e., the initial temperature of the battery), the smaller the matching power generation power is selected as the power generation power of the range extender, so that the heat generated by the components in the range extender is less, and the increase in the battery temperature is caused to be smaller, so that the temperature of the batteries with different initial temperatures after the increase is less than the temperature threshold, so as to avoid excessive temperature increase of the battery and cause overheating damage to the battery.

[0124] Figure 5 is a block diagram of a range extender power control device provided in an embodiment of the present application, such as Figure 5 As shown, the device 300 includes:

[0125] A first acquisition module, configured to acquire a first battery temperature of a battery of the vehicle when a range extender of the vehicle is started;

[0126] a determination module, configured to determine a matching power generation power of the range extender according to the first battery temperature; the first battery temperature is negatively correlated with the matching power generation power;

[0127] The adjustment module is used to adjust the power generation power of the range extender from a preset initial power generation power to a matching power generation power.

[0128] Optionally, determine the module, including:

[0129] a determination submodule, configured to determine a first target temperature interval to which the first battery temperature belongs from a preset temperature interval sequence; the temperature interval sequence includes n temperature intervals, the temperature interval is an interval from a first endpoint temperature to a second endpoint temperature, the first endpoint temperature is less than the second endpoint temperature; the second endpoint temperature of the i-th temperature interval is equal to the first endpoint temperature of the i+1-th temperature interval, n is a positive integer, and i is a positive integer less than n;

[0130] A first acquisition submodule, configured to acquire a first target power generation corresponding to the first target temperature interval from a preset correspondence between the reference power generation of the range extender and the temperature interval, and determine the first target power generation as the matching power generation;

[0131] Among them, in the preset corresponding relationship, the reference power generation power is negatively correlated with the second endpoint temperature or the first endpoint temperature of the temperature interval.

[0132] Optionally, the first endpoint temperature of each temperature interval has a corresponding preset reference temperature, and the preset reference temperature is lower than the first endpoint temperature of the temperature interval corresponding to the preset reference temperature; the device 300 further includes:

[0133] A second acquisition module, used to acquire a second battery temperature of the battery;

[0134] The first processing module is used to maintain the power generation power of the range extender at the matching power generation power when the second battery temperature is greater than or equal to a first preset reference temperature and the second battery temperature is less than the second endpoint temperature of the first target temperature interval; the first preset reference temperature is a preset reference temperature corresponding to the first endpoint temperature of the first target temperature interval.

[0135] Optionally, the device 300 further includes:

[0136] a second processing module, configured to determine, from the temperature interval sequence, a second target temperature interval to which the second battery temperature belongs, when the second battery temperature is lower than the first preset reference temperature or the second battery temperature is greater than or equal to a second endpoint temperature of the first target temperature interval;

[0137] A third acquisition module, configured to acquire, from the preset corresponding relationship, a second target power generation corresponding to the second target temperature range;

[0138] The third processing module is used to adjust the power generation power of the range extender from the matching power generation power to the second target power generation power.

[0139] Optionally, the battery includes a plurality of battery cells, and the second acquisition module specifically includes:

[0140] A second acquisition submodule, used to acquire a second battery cell temperature of each battery cell in the battery;

[0141] The third acquisition submodule is used to acquire the second battery cell temperature with the highest temperature among the second battery cell temperatures, and determine the second battery cell temperature with the highest temperature as the second battery temperature.

[0142] Optionally, the first endpoint temperature of each temperature interval has a corresponding preset temperature difference, and the device 300 further includes:

[0143] A fourth acquisition module, used to acquire a first endpoint temperature of the temperature interval;

[0144] The fifth acquisition module is used to subtract the preset temperature difference corresponding to the first endpoint temperature of the temperature interval from the first endpoint temperature of the temperature interval to obtain the preset reference temperature.

[0145] Optionally, the battery includes a plurality of battery cells, and the first acquisition module specifically includes:

[0146] A fourth acquisition submodule, used to acquire a first battery cell temperature of each battery cell in the battery;

[0147] The fifth acquisition submodule is configured to acquire a first battery cell temperature having the highest temperature among the first battery cell temperatures, and determine the first battery cell temperature having the highest temperature as the first battery temperature.

[0148] The control device of the range extender power in the embodiment of the present application may be a device, or a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device may be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. The non-mobile electronic device may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0149] The range extender power control device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0150] The range extender power control device provided in the embodiment of the present application can achieve Figure 1 The various processes implemented by the range extender power control device in the method embodiment are not described here to avoid repetition.

[0151] An embodiment of the present application also provides a vehicle, comprising the aforementioned range extender power control device.

[0152] The specific implementation process of the range extender power control device in the vehicle is similar to the implementation process of the aforementioned range extender power control device, which will not be repeated here.

[0153] In an embodiment of the present application, when the range extender of the vehicle is started, a first battery temperature of the battery of the vehicle is obtained, and then the matching power generation power of the range extender is determined according to the first battery temperature, and then the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power. Since the first battery temperature is negatively correlated with the matching power generation power, a smaller matching power generation power is selected as the power generation power of the range extender for a higher first battery temperature (i.e., the initial temperature of the battery), so that the heat generated by the components in the range extender is less, and the amount of increase in the battery temperature is smaller, so that the temperature of the batteries with different initial temperatures after the increase is less than the temperature threshold, so as to avoid excessive temperature increase of the battery and cause overheating damage to the battery.

[0154] Optionally, an embodiment of the present application further provides an electronic device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, each process of the above-mentioned range extender power control method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0155] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0156] Figure 6 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of the present application.

[0157] The electronic device 400 includes but is not limited to components such as a radio frequency unit 401 , a network module 402 , an audio output unit 403 , an input unit 404 , a sensor 405 , a display unit 406 , a user input unit 407 , an interface unit 408 , a memory 409 , and a processor 410 .

[0158] Those skilled in the art will appreciate that the electronic device 400 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 410 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 6 The electronic device structure shown in the figure does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0159] The processor 410 is used to obtain a first battery temperature of a battery of the vehicle when a range extender of the vehicle is started;

[0160] determining a matching power generation power of the range extender according to the first battery temperature; wherein the first battery temperature is negatively correlated with the matching power generation power;

[0161] The power generation power of the range extender is adjusted from a preset initial power generation power to a matching power generation power.

[0162] In an embodiment of the present application, when the range extender of the vehicle is started, a first battery temperature of the battery of the vehicle is obtained, and then the matching power generation power of the range extender is determined according to the first battery temperature, and then the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power. Since the first battery temperature is negatively correlated with the matching power generation power, a smaller matching power generation power is selected as the power generation power of the range extender for a higher first battery temperature (i.e., the initial temperature of the battery), so that the heat generated by the components in the range extender is less, and the amount of increase in the battery temperature is smaller, so that the temperature of the batteries with different initial temperatures after the increase is less than the temperature threshold, so as to avoid excessive temperature increase of the battery and cause overheating damage to the battery.

[0163] Optionally, the processor 410 is further used to determine a first target temperature interval to which the first battery temperature belongs from a preset temperature interval sequence; the temperature interval sequence includes n temperature intervals, the temperature interval is an interval from a first endpoint temperature to a second endpoint temperature, the first endpoint temperature is less than the second endpoint temperature; the second endpoint temperature of the i-th temperature interval is equal to the first endpoint temperature of the i+1-th temperature interval, n is a positive integer, and i is a positive integer less than n; from the preset correspondence between the reference power generation power of the range extender and the temperature interval, the first target power generation power corresponding to the first target temperature interval is obtained, and the first target power generation power is determined as the matching power generation power; wherein, in the preset correspondence, the reference power generation power is negatively correlated with the second endpoint temperature or the first endpoint temperature of the temperature interval.

[0164] Optionally, the first endpoint temperature of each temperature interval has a corresponding preset reference temperature, and the preset reference temperature is lower than the first endpoint temperature of the temperature interval corresponding to the preset reference temperature; the processor 410 is also used to obtain the second battery temperature of the battery; when the second battery temperature is greater than or equal to the first preset reference temperature and the second battery temperature is lower than the second endpoint temperature of the first target temperature interval, the power generation power of the range extender is maintained at the matching power generation power; the first preset reference temperature is the preset reference temperature corresponding to the first endpoint temperature of the first target temperature interval.

[0165] Optionally, the processor 410 is further used to determine, from the temperature interval sequence, a second target temperature interval to which the second battery temperature belongs, when the second battery temperature is less than the first preset reference temperature, or the second battery temperature is greater than or equal to the second endpoint temperature of the first target temperature interval; obtain, from the preset corresponding relationship, a second target power generation corresponding to the second target temperature interval; and adjust the power generation power of the range extender from the matching power generation power to the second target power generation power.

[0166] Optionally, the processor 410 is further used to obtain a second battery cell temperature of each of the battery cells in the battery; obtain a second battery cell temperature with the highest temperature among the second battery cell temperatures, and determine the second battery cell temperature with the highest temperature as the second battery temperature.

[0167] Optionally, the first endpoint temperature of each temperature interval has a corresponding preset temperature difference, and the processor 410 is further used to obtain the first endpoint temperature of the temperature interval; subtract the preset temperature difference corresponding to the first endpoint temperature of the temperature interval from the first endpoint temperature of the temperature interval to obtain the preset reference temperature.

[0168] Optionally, the battery includes multiple battery cells, and the processor 410 is further used to obtain a first battery cell temperature of each battery cell in the battery; obtain the first battery cell temperature with the highest temperature among the first battery cell temperatures, and determine the first battery cell temperature with the highest temperature as the first battery temperature.

[0169] In an embodiment of the present application, when the range extender of the vehicle is started, a first battery temperature of the battery of the vehicle is obtained, and then the matching power generation power of the range extender is determined according to the first battery temperature, and then the power generation power of the range extender is adjusted from the preset initial power generation power to the matching power generation power. Since the first battery temperature is negatively correlated with the matching power generation power, a smaller matching power generation power is selected as the power generation power of the range extender for a higher first battery temperature (i.e., the initial temperature of the battery), so that the heat generated by the components in the range extender is less, and the amount of increase in the battery temperature is smaller, so that the temperature of the batteries with different initial temperatures after the increase is less than the temperature threshold, so as to avoid excessive temperature increase of the battery and cause overheating damage to the battery.

[0170] It should be understood that in the embodiment of the present application, the input unit 404 may include a graphics processor (Graphics Processing Unit, GPU) 4041 and a microphone 4042, and the graphics processor 4041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 407 includes a touch panel 4071 and at least one of other input devices 4072. The touch panel 4071 is also called a touch screen. The touch panel 4071 may include two parts: a touch detection device and a touch controller. Other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0171] The memory 409 can be used to store software programs and various data. The memory 409 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 409 may include a volatile memory or a non-volatile memory, or the memory 409 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 409 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0172] The processor 410 may include one or more processing units; optionally, the processor 410 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 410.

[0173] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned range extender power control method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0174] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0175] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned range extender power control method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0176] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0177] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0178] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0179] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A method for controlling the power of a range extender, characterized in that: The method comprises: When a range extender of a vehicle is started, obtaining a first battery temperature of a battery of the vehicle; determining a matching power generation power of the range extender according to the first battery temperature; wherein the first battery temperature is negatively correlated with the matching power generation power; The power generation power of the range extender is adjusted from a preset initial power generation power to a matching power generation power.

2. The method according to claim 1, characterized in that The determining, according to the first battery temperature, the matching power generation power of the range extender includes: Determine a first target temperature interval to which the first battery temperature belongs from a preset temperature interval sequence; the temperature interval sequence includes n temperature intervals, the temperature interval is an interval from a first endpoint temperature to a second endpoint temperature, the first endpoint temperature is less than the second endpoint temperature; the second endpoint temperature of the i-th temperature interval is equal to the first endpoint temperature of the i+1-th temperature interval, n is a positive integer, and i is a positive integer less than n; Obtaining a first target power generation corresponding to the first target temperature interval from a preset correspondence between the reference power generation of the range extender and the temperature interval, and determining the first target power generation as the matching power generation; Among them, in the preset corresponding relationship, the reference power generation power is negatively correlated with the second endpoint temperature or the first endpoint temperature of the temperature interval.

3. The method according to claim 2, characterized in that The first endpoint temperature of each temperature interval has a corresponding preset reference temperature, and the preset reference temperature is lower than the first endpoint temperature of the temperature interval corresponding to the preset reference temperature; After adjusting the power generation power of the range extender from the preset initial power generation power to the matching power generation power, the method further includes: acquiring a second battery temperature of the battery; When the second battery temperature is greater than or equal to the first preset reference temperature and the second battery temperature is less than the second endpoint temperature of the first target temperature interval, the power generation power of the range extender is maintained at the matching power generation power; the first preset reference temperature is the preset reference temperature corresponding to the first endpoint temperature of the first target temperature interval.

4. The method according to claim 3, characterized in that After acquiring the second battery temperature of the battery, the method further includes: When the second battery temperature is lower than the first preset reference temperature, or the second battery temperature is higher than or equal to the second endpoint temperature of the first target temperature interval, determining, from the temperature interval sequence, a second target temperature interval to which the second battery temperature belongs; From the preset corresponding relationship, obtaining a second target power generation corresponding to the second target temperature range; The power generation power of the range extender is adjusted from the matching power generation power to the second target power generation power.

5. The method according to claim 3, characterized in that: The battery includes a plurality of battery cells, and obtaining a second battery temperature of the battery includes: Acquire a second cell temperature of each cell in the battery; A second battery cell temperature with the highest temperature among the second battery cell temperatures is acquired, and the second battery cell temperature with the highest temperature is determined as the second battery temperature.

6. The method according to claim 3, characterized in that The first endpoint temperature of each temperature interval has a corresponding preset temperature difference, and the method further includes: Acquire a first endpoint temperature of the temperature interval; The preset reference temperature is obtained by subtracting a preset temperature difference corresponding to the first endpoint temperature of the temperature interval from the first endpoint temperature of the temperature interval.

7. The method according to claim 1, characterized in that The battery includes a plurality of battery cells, and obtaining a first battery temperature of the battery of the vehicle includes: Acquire a first battery cell temperature of each battery cell in the battery; A first battery cell temperature with the highest temperature among the first battery cell temperatures is acquired, and the first battery cell temperature with the highest temperature is determined as the first battery temperature.

8. A range extender power control device, characterized in that: The device comprises: A first acquisition module, configured to acquire a first battery temperature of a battery of the vehicle when a range extender of the vehicle is started; a determination module, configured to determine a matching power generation power of the range extender according to the first battery temperature; the first battery temperature is negatively correlated with the matching power generation power; The adjustment module is used to adjust the power generation power of the range extender from a preset initial power generation power to a matching power generation power.

9. An electronic device, characterized in that: The invention comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein when the program or instruction is executed by the processor, the steps of the method for controlling the power of a range extender as claimed in any one of claims 1 to 7 are implemented.

10. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the steps of the method for controlling the power of the range extender according to any one of claims 1 to 7 are implemented.

11. A vehicle, characterized in that: A device for controlling the range extender power as claimed in claim 8.

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