Vehicle, thermal management control method and apparatus therefor, thermal management system and storage medium

Abstract

A thermal management control method, comprising: acquiring battery ranges corresponding to a plurality of thermal management strategies; on the basis of the battery ranges corresponding to the plurality of thermal management strategies, determining battery range information of a target thermal management strategy; controlling a display device to display the battery range information; and in response to a control instruction, controlling the vehicle thermal management strategy according to the control instruction, the control instruction being an instruction sent on the basis of the battery range information of the target thermal management strategy. Also disclosed are an apparatus comprising the thermal management control method, a thermal management system, a storage medium, and a vehicle. The control method displays the battery range information by means of the display device, so as to perform human-computer interaction, thereby improving user experiences; the method also controls the thermal management strategy according to the control instruction, thereby reducing energy waste caused by unintended heating, and improving overall efficiency of the vehicle.

Description

Vehicle and thermal management control method, device, thermal management system and storage medium thereof

[0001] Cross-references to related publications

[0002] This disclosure claims priority to Chinese patent application number 202410005057.4, filed on January 2, 2024, entitled “Vehicle and its thermal management control method, device, thermal management system and storage medium,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of vehicles, and in particular to a vehicle thermal management control method, a vehicle thermal management control device, a computer-readable storage medium, a vehicle thermal management system, and a vehicle. Background Art

[0004] Electric vehicle range decreases significantly when the outdoor temperature is high. Reasonable battery thermal management strategies, such as heating the battery when the charge is low, can increase range to a certain extent. However, when the user has arrived at the destination or does not need to charge immediately, the heat from the heated battery pack is lost to the cool surrounding air during parking, resulting in wasted energy.

[0005] Public content

[0006] In response to the above-mentioned issues, the present disclosure provides a vehicle, a thermal management control method and apparatus, a thermal management system, and a storage medium thereof. These methods obtain the cruising ranges corresponding to multiple thermal management strategies, determine the cruising range information for a target thermal management strategy based on the cruising ranges corresponding to the multiple thermal management strategies, then control a display device to display the cruising range information. Upon receiving a control command, the vehicle's thermal management strategy is controlled accordingly. Thus, the cruising range information is displayed on the display device for human-computer interaction, improving the user experience. Furthermore, the thermal management strategy is controlled according to the control command, reducing energy waste caused by misheating and improving the overall efficiency of the vehicle.

[0007] In a first aspect, the present disclosure provides a vehicle thermal management control method, which obtains the cruising range corresponding to multiple thermal management strategies; determines the cruising range information of a target thermal management strategy based on the cruising range corresponding to the multiple thermal management strategies; controls a display device to display the cruising range information; responds to a control instruction, and controls the vehicle thermal management strategy according to the control instruction, wherein the control instruction is an instruction issued based on the cruising range information of the target thermal management strategy.

[0008] In the technical solution of the embodiment of the present disclosure, the cruising range corresponding to multiple thermal management strategies is first obtained, and then the cruising range information of the target thermal management strategy is determined based on the cruising range corresponding to the multiple thermal management strategies, and the cruising range information is displayed by controlling the display device (such as an on-board display) for the user to select. The user decides whether to select the target thermal management strategy based on actual needs and in combination with the cruising range information, and issues a control instruction. After receiving the control instruction, the control instruction is responded to, and the vehicle thermal management strategy is controlled according to the control instruction. For example, when the user selects the target thermal management strategy, the vehicle is controlled to switch to the target thermal management strategy; for another example, when the user does not select the target thermal management strategy, the vehicle is controlled to keep the current thermal management strategy unchanged. Thus, the cruising range information is displayed on the display device to conduct human-computer interaction, improve user experience, and control the thermal management strategy according to the control instruction, reduce energy waste caused by misheating, and improve the overall efficiency of the vehicle.

[0009] In some embodiments, the cruising range information includes an emergency cruising range, and the vehicle thermal management strategy is controlled according to the control instruction, including: when the control instruction is to select the emergency cruising range, switching to the thermal management strategy corresponding to the emergency cruising range; when the control instruction is not to select the emergency cruising range, keeping the current thermal management strategy unchanged.

[0010] The emergency cruising range is displayed on a display device to interact with the user for selection. When the user selects the emergency cruising range, it means that the user requires the battery to maintain a longer cruising range. At this time, the thermal management strategy corresponding to the emergency cruising range is switched to increase the vehicle's cruising range. When the user does not select the emergency cruising range, it means that the user does not need the battery to maintain a longer cruising range. The current thermal management strategy remains unchanged, thereby reducing energy waste and improving the overall efficiency of the vehicle.

[0011] In some embodiments, determining the cruising range information of a target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies includes: determining the target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies; and determining the cruising range information based on the target thermal management strategy and its corresponding cruising range.

[0012] The target thermal management strategy is determined based on the ranges corresponding to multiple thermal management strategies. For example, the thermal management strategy with the longest range is selected as the target thermal management strategy, or several thermal management strategies with relatively large ranges can be selected as the target thermal management strategy. The target thermal management strategy and its corresponding range are then used as range information. The range information includes the thermal management strategy and its corresponding range. The vehicle's range information is displayed on a display device, allowing users to select the strategy based on their needs, thereby reducing vehicle energy waste.

[0013] In some embodiments, determining a target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies includes: determining a preset number of thermal management strategies as target thermal management strategies in order of the cruising ranges corresponding to the multiple thermal management strategies.

[0014] The thermal management strategy with the longest driving range can be used as the target thermal management strategy, or multiple thermal management strategies can be used as target thermal management strategies, providing users with multiple options to improve user experience, while also maximizing vehicle energy utilization.

[0015] In some embodiments, the vehicle thermal management control method further includes: determining a time interval for displaying the emergency cruising range based on the emergency cruising range. As the emergency cruising range increases, the time interval for displaying the emergency cruising range decreases, i.e., the user is reminded more frequently to prevent the user from missing the reminder.

[0016] In some embodiments, the time interval for displaying the emergency cruising range is determined based on the emergency cruising range, including: when the emergency cruising range is greater than the preset cruising range, the time interval is determined based on the emergency cruising range, wherein the greater the emergency cruising range, the smaller the time interval, and the smaller the emergency cruising range, the larger the time interval; when the emergency cruising range is less than the preset cruising range threshold, the display device is controlled to stop displaying the emergency cruising range.

[0017] As the battery power decreases, the emergency cruising range will gradually decrease. When the emergency cruising range is large, the frequency of interaction with the user will be increased, allowing the user to select the appropriate thermal management strategy in advance according to their own needs, thereby obtaining a larger improvement in the emergency cruising range; when the emergency cruising range is small, the improvement in the emergency cruising range is limited. At this time, the display device can stop displaying the emergency cruising range and no longer interact with the user.

[0018] In some embodiments, before controlling the display device to display the range information, the method further includes: determining that the vehicle's battery charge is less than a preset charge threshold. Controlling the display device to display the range information only when the vehicle's battery charge is low reduces distraction to the user and improves the user experience.

[0019] In some embodiments, the multiple thermal management strategies include: heating the battery with waste heat from the electric drive, heating the battery with a PTC (Positive Temperature Coefficient), and heating the battery with a heat pump.

[0020] In some embodiments, obtaining the cruising range corresponding to multiple thermal management strategies includes: obtaining the outdoor ambient temperature and the battery temperature; determining the vehicle operating parameters within a preset time before the current moment based on the outdoor ambient temperature and the battery temperature; and determining the cruising range corresponding to each thermal management strategy based on the battery power and the vehicle operating parameters.

[0021] In a second aspect, the present disclosure provides a thermal management control device for a vehicle, comprising: an acquisition module for acquiring the cruising range corresponding to multiple thermal management strategies; a determination module for determining the cruising range information of a target thermal management strategy based on the cruising range corresponding to multiple thermal management strategies; a control module for controlling a display device to display the cruising range information, and responding to a control instruction, and controlling the vehicle thermal management strategy according to the control instruction, wherein the control instruction is an instruction issued based on the cruising range information of the target thermal management strategy.

[0022] In the technical solution of the embodiment of the present disclosure, the cruising range corresponding to multiple thermal management strategies is obtained by the acquisition module, and then the cruising range information of the target thermal management strategy is determined by the determination module based on the cruising range corresponding to the multiple thermal management strategies. The control module controls the display device (such as the vehicle-mounted display screen) to display the cruising range information for the user to select. The user decides whether to select the target thermal management strategy based on actual needs and in combination with the cruising range information, and issues a control instruction. After receiving the control instruction, the control module responds to the control instruction and controls the vehicle thermal management strategy according to the control instruction. For example, when the user selects the target thermal management strategy, the control module controls the vehicle to switch to the target thermal management strategy; for another example, when the user does not select the target thermal management strategy, the control module controls the vehicle to keep the current thermal management strategy unchanged. Thus, the cruising range information is displayed on the display device to conduct human-computer interaction, improve user experience, and control the thermal management strategy according to the control instruction, reduce energy waste caused by misheating, and improve the overall efficiency of the vehicle.

[0023] In some embodiments, the cruising range information includes an emergency cruising range, and the control module controls the vehicle thermal management strategy according to the control instruction, specifically for: when the control instruction is to select the emergency cruising range, switching to the thermal management strategy corresponding to the emergency cruising range; when the control instruction is not to select the emergency cruising range, keeping the current thermal management strategy unchanged.

[0024] The control module controls the display device to display the emergency cruising range and interacts with the user for the user to make a selection. When the user selects the emergency cruising range, it means that the user needs the battery to maintain a longer cruising range. At this time, the control module switches the current thermal management strategy to the thermal management strategy corresponding to the emergency cruising range to increase the vehicle's cruising range; when the user does not select the emergency cruising range, it means that the user does not need the battery to maintain a longer cruising range. The control module maintains the current thermal management strategy unchanged, reduces energy waste, and improves the overall efficiency of the vehicle.

[0025] In some embodiments, the determination module determines the cruising range information of the target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies, specifically for: determining the target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies; determining the cruising range information based on the target thermal management strategy and its corresponding cruising range.

[0026] The determination module determines a target thermal management strategy based on the ranges corresponding to multiple thermal management strategies. For example, the thermal management strategy with the longest range can be used as the target thermal management strategy, or several thermal management strategies with relatively large ranges can be used as target thermal management strategies. The determination module then uses the target thermal management strategy and its corresponding range as range information. The range information includes the thermal management strategy and its corresponding range. The vehicle's range information is displayed on a display device, allowing users to select the strategy based on their needs, thereby reducing vehicle energy waste.

[0027] In some embodiments, the determination module determines the target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies, specifically for determining a preset number of thermal management strategies as the target thermal management strategy in order of the cruising ranges corresponding to the multiple thermal management strategies.

[0028] The thermal management strategy with the longest driving range can be used as the target thermal management strategy, or multiple thermal management strategies can be used as target thermal management strategies, providing users with multiple options to improve user experience, while also maximizing vehicle energy utilization.

[0029] In some embodiments, the control module is further configured to determine a time interval for displaying the emergency cruising range based on the emergency cruising range. The greater the emergency cruising range, the shorter the time interval for displaying the emergency cruising range, i.e., more frequent reminders to the user to prevent the user from missing information.

[0030] In some embodiments, the control module determines the time interval for displaying the emergency cruising range based on the emergency cruising range, specifically for: when the emergency cruising range is greater than the preset cruising range, determining the time interval based on the emergency cruising range, wherein the greater the emergency cruising range, the smaller the time interval, and the smaller the emergency cruising range, the larger the time interval; when the emergency cruising range is less than the preset cruising range threshold, controlling the display device to stop displaying the emergency cruising range.

[0031] As the battery power decreases, the emergency cruising range will gradually decrease. When the emergency cruising range is large, the frequency of interaction with the user will be increased, allowing the user to select the appropriate thermal management strategy in advance according to their own needs, thereby obtaining a larger improvement in the emergency cruising range; when the emergency cruising range is small, the improvement in the emergency cruising range is limited. At this time, the display device can stop displaying the emergency cruising range and no longer interact with the user.

[0032] In a third aspect, the present disclosure provides a computer-readable storage medium storing a vehicle thermal management control program, which is the above-mentioned vehicle thermal management control method when executed by a processor.

[0033] In a fourth aspect, the present disclosure provides a vehicle thermal management system, comprising a memory, a processor, and a vehicle thermal management control program stored in the memory and executable on the processor. When the processor executes the vehicle thermal management control program, the above-mentioned vehicle thermal management control method is implemented.

[0034] In a fifth aspect, the present disclosure provides a vehicle, comprising a memory, a processor, and a vehicle thermal management control program stored in the memory and executable on the processor. When the processor executes the vehicle thermal management control program, the above-mentioned vehicle thermal management control method is implemented.

[0035] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present disclosure. The same reference numerals are used throughout the drawings to denote the same components. In the drawings:

[0037] FIG1 is a flow chart of a thermal management control method for a vehicle according to some embodiments of the present disclosure;

[0038] FIG2 is a block diagram of a thermal management control device for a vehicle according to some embodiments of the present disclosure;

[0039] FIG3 is a block diagram of a vehicle thermal management system according to some embodiments of the present disclosure;

[0040] FIG4 is a block diagram of a vehicle according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0041] The following embodiments of the technical solution of the present disclosure are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure and are therefore only examples and are not intended to limit the scope of protection of the present disclosure.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the terms "including" and "having" and any variations thereof in the specification and claims of the present disclosure and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0043] In the description of the embodiments of the present disclosure, technical terms such as "first" and "second" are used solely to distinguish between different objects and should not be understood to indicate or imply relative importance or to implicitly specify the quantity, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of the present disclosure, "plurality" means more than two, unless otherwise specifically defined.

[0044] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0045] In the description of the embodiments of the present disclosure, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0046] In the description of the embodiments of the present disclosure, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0047] In the description of the embodiments of the present disclosure, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present disclosure.

[0048] In the description of the embodiments of the present disclosure, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and they can refer to internal connectivity between two components or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure based on specific circumstances.

[0049] Electric vehicle range decreases significantly when the outdoor temperature is high. Reasonable battery thermal management strategies, such as heating the battery when the charge is low, can increase range to a certain extent. However, when the user has arrived at the destination or does not need to charge immediately, the heat from the heated battery pack is lost to the cool surrounding air during parking, resulting in wasted energy.

[0050] If the user's current expected range can be accurately known, the thermal management strategy in low-temperature environments can be effectively controlled. However, in general, the required range of the user needs to be obtained through navigation information. This requires the vehicle computer to be connected or the mobile terminal to be connected to the vehicle controller. That is, when the user uses navigation, the versatility is not high and it is not suitable for working conditions without navigation.

[0051] Therefore, the present disclosure displays range information on a display device for user selection. Based on user control commands, the system determines whether to enable battery heating and then matches the appropriate thermal management strategy, thereby increasing vehicle range, avoiding energy waste, and making every kilowatt-hour of electricity count. Furthermore, through human-computer interaction, the system can enhance the user's driving experience.

[0052] For the convenience of description, the following embodiment will describe the thermal management control method of a vehicle disclosed in the present invention with reference to FIG1 .

[0053] 1 , the vehicle thermal management control method of the present disclosure may include the following steps:

[0054] S11, obtaining cruising ranges corresponding to multiple thermal management strategies.

[0055] S12, determining the cruising range information of the target thermal management strategy according to the cruising ranges corresponding to the multiple thermal management strategies.

[0056] S13, controlling the display device to display the cruising range information.

[0057] S14 , responding to a control instruction and controlling the vehicle thermal management strategy according to the control instruction, wherein the control instruction is an instruction issued based on the cruising range information of the target thermal management strategy.

[0058] Specifically, the vehicle's ranges corresponding to multiple thermal management strategies are first obtained. The range information for a target thermal management strategy is then determined based on the ranges corresponding to the multiple thermal management strategies. The range information is then displayed on a control display device (e.g., an onboard display) for user selection. The user then decides whether to select the target thermal management strategy based on actual needs and the range information, and issues a control command. For example, the user may touch a corresponding location on the display device to confirm or cancel, or may control the display device using a mechanical button to issue a control command. Upon receiving the control command, the system responds to the control command and controls the vehicle's thermal management strategy accordingly. For example, when a user selects range information by touching a corresponding location on the display device, the system determines the corresponding thermal management strategy based on the selected range information and switches to that thermal management strategy. Alternatively, if the user does not select range information by touching a corresponding location on the display device, or if the user has not issued a control command for a period of time, the current thermal management strategy remains unchanged. Therefore, the mileage information is displayed on the display device to conduct human-computer interaction, improve user experience, give users a sense of technology, and to a certain extent alleviate user anxiety. The thermal management strategy is controlled according to control instructions to reduce energy waste caused by misheating and improve the overall efficiency of the vehicle.

[0059] Furthermore, when the vehicle lacks navigation information, it can interact with the user to select the appropriate thermal management strategy, improving overall vehicle efficiency. When navigation information is available, the vehicle controller can directly determine the appropriate thermal management strategy, or the user can actively select the range information displayed on the display device, enhancing the interaction between the user and the vehicle.

[0060] It should be noted that the target thermal management strategy may include one thermal management strategy or multiple thermal management strategies. When the target thermal management strategy includes one thermal management strategy, the cruising range information includes the cruising range information of the thermal management strategy; when the target thermal management strategy includes multiple thermal management strategies, the cruising range information includes the cruising range information corresponding to multiple thermal management strategies, and the cruising range information corresponding to multiple thermal management strategies will be displayed on the display device.

[0061] In some embodiments, the cruising range information includes an emergency cruising range, and the vehicle thermal management strategy is controlled according to the control instruction, including: when the control instruction is to select the emergency cruising range, switching to the thermal management strategy corresponding to the emergency cruising range; when the control instruction is not to select the emergency cruising range, keeping the current thermal management strategy unchanged.

[0062] Specifically, emergency range generally refers to the amount of range that can be increased by using a method when the battery charge drops below a certain value. For example, the emergency range is the range of the target thermal management strategy minus the range of the current thermal management strategy. For example, when a vehicle is driving in a low-temperature environment, if the battery charge is 20% and the range is 10km, then heating the battery can increase the range to 15km. In this case, the emergency range is 5km (15km - 10km).

[0063] During vehicle driving, the emergency cruising range is displayed in real time on the display device, and the user interacts with the device for selection. When the user selects the emergency cruising range, it means that the user needs the battery to maintain a longer cruising range to complete the remaining distance. At this time, the thermal management strategy corresponding to the emergency cruising range is switched to increase the vehicle's cruising range. When the user does not select the emergency cruising range, it means that the user does not need the battery to maintain a longer cruising range. If the user is about to park, the current thermal management strategy will be kept unchanged to reduce energy waste and improve the overall efficiency of the vehicle.

[0064] In some embodiments, determining the cruising range information of a target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies includes: determining the target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies; and determining the cruising range information based on the target thermal management strategy and its corresponding cruising range.

[0065] In some embodiments, determining a target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies includes determining a preset number of thermal management strategies as the target thermal management strategy in order of the cruising ranges corresponding to the multiple thermal management strategies. The preset number can be calibrated based on actual conditions. For example, the preset number can be 1, 2, or 3, and does not exceed the number of thermal management strategies.

[0066] Specifically, the target thermal management strategy is determined based on the cruising range corresponding to multiple thermal management strategies. For example, the thermal management strategy with the largest cruising range is used as the target thermal management strategy, or the first few thermal management strategies with larger cruising ranges can be used as the target thermal management strategies. The target thermal management strategy and its corresponding cruising range are then used as the cruising range information, that is, the cruising range information includes the thermal management strategy and its corresponding cruising range. Among them, when there are multiple target thermal management strategies, the cruising range information includes each thermal management strategy and its corresponding cruising range. The cruising range information of the vehicle is displayed on a display device, providing users with a variety of options so that users can choose according to their own needs, thereby improving the user experience, alleviating user anxiety to a certain extent, giving users a sense of technology, and reducing vehicle energy waste. In some embodiments, the above-mentioned vehicle thermal management control method further includes: determining the time interval for displaying the emergency cruising range based on the emergency cruising range.

[0067] In some embodiments, determining the time interval for displaying the emergency cruising range based on the emergency cruising range includes: if the emergency cruising range is greater than a preset cruising range, determining the time interval based on the emergency cruising range, wherein the greater the emergency cruising range, the shorter the time interval, and the shorter the emergency cruising range, the longer the time interval; and if the emergency cruising range is less than a preset cruising range threshold, controlling the display device to stop displaying the emergency cruising range. The preset cruising range threshold can be calibrated according to actual conditions.

[0068] Specifically, as the battery charge decreases, the emergency range gradually decreases, primarily because battery heating wastes battery power. Therefore, the lower the battery charge, the shorter the emergency range; the higher the battery charge, the longer the emergency range. When the emergency range is high, the interval between displaying the emergency range is shortened, increasing the frequency of user interaction—that is, more frequent reminders—to prevent users from missing information and allowing them to pre-select appropriate thermal management strategies based on their needs, significantly improving the emergency range. When the emergency range is low, the improvement in emergency range is limited. In this case, the device can stop displaying the emergency range and stop interacting with the user. For example, when the battery charge is 30%, the emergency range is 10 km, displayed every 30 seconds. When the battery charge is 20%, the emergency range is 6 km, displayed every 45 seconds. When the battery charge is 10%, the emergency range is 1 km, or heating the battery will deplete the remaining charge, so the emergency range display is unnecessary.

[0069] In some embodiments, before controlling the display device to display the cruising range information, the method further includes: determining that the battery power of the vehicle is less than a preset power threshold.

[0070] That is, when the battery level is high, there's no need to display the emergency range, to avoid distracting the user with frequent range displays. For example, if a user in the passenger seat is watching a video on a display device, frequently displaying the emergency range information could disrupt the user's viewing experience. Therefore, only when the vehicle's battery level is low does the display of range information appear on the display. This not only reduces distractions caused by the displayed range information, but also provides a technological experience. Users can see the emergency range in real time, alleviating the driver's anxiety about not being able to reach their destination due to low battery level, thereby improving the user experience.

[0071] In some embodiments, the multiple thermal management strategies include: heating the battery with waste heat from electric drive, heating the battery with PTC, and heating the battery with a heat pump.

[0072] In some embodiments, obtaining the cruising range corresponding to multiple thermal management strategies includes: obtaining the outdoor ambient temperature and the battery temperature; determining the vehicle operating parameters within a preset time period before the current moment based on the outdoor ambient temperature and the battery temperature; and determining the cruising range corresponding to each thermal management strategy based on the battery charge and the vehicle operating parameters. The preset time period can be further calibrated based on actual conditions.

[0073] Specifically, the vehicle operating parameters may include average discharge power, average discharge current, and power consumption per 100 km. For example, the vehicle operating parameters may include average discharge power. During vehicle driving, the outdoor ambient temperature, battery charge W (kmh) and battery cell temperature are obtained to determine the average discharge power P (kw) over the past period of time. The dischargeable time t (h) can be determined based on the battery charge and the average discharge power. The range S (km) under each thermal management strategy can be determined by multiplying the dischargeable time by the average vehicle speed V (km / h) over the past period of time. For example, S = (W / P) * V. The average discharge power under different thermal management strategies can be obtained by looking up the table based on the outdoor ambient temperature and battery cell temperature. The average discharge power under different thermal management strategies can be determined, and the average discharge power under different thermal management strategies can be determined, thereby determining the range under different thermal management strategies.

[0074] For example, vehicle operating parameters may include average discharge current. During vehicle operation, the remaining battery capacity Q (Ah) can be determined based on the battery charge, and the average discharge current I (A) over a period of time can be determined based on the outdoor ambient temperature, the remaining battery capacity, and the cell temperature. The dischargeable time t (h) can be determined based on the remaining battery capacity and the average discharge current. The range S (km) under each thermal management strategy can be determined by multiplying the dischargeable time by the average vehicle speed V (km / h) over a period of time, for example, S = (Q / P) * V. The average discharge current under different thermal management strategies can be obtained by looking up a table based on the outdoor ambient temperature and the cell temperature, thereby determining the average discharge current under different thermal management strategies, and further determining the range under different thermal management strategies.

[0075] Exemplarily, the vehicle operating parameters may include power consumption per 100 kilometers. During vehicle driving, the cruising range S (km) can be obtained based on the vehicle's power consumption per 100 kilometers E (kwh / 100km) and the battery power W (kmh) under standard cruising conditions, for example, S = (W / E) * 100. The power consumption per 100 kilometers under different thermal management strategies can be obtained by looking up the table based on the outdoor ambient temperature and the battery cell temperature, and the power consumption per 100 kilometers under different thermal management strategies can be determined, thereby determining the cruising range under different thermal management strategies. Among them, the standard cruising condition can be NEDC (New European Driving Cycle) or CLTC (China Automotive Test Cycle).

[0076] It should be noted that the method of obtaining the cruising range corresponding to multiple thermal management strategies is not limited to the method in the above embodiment, and can also be other methods, which are not limited here.

[0077] As a specific example, information such as the outdoor ambient temperature, battery charge, and battery temperature is obtained. Based on the specific heating modes achievable by the vehicle's thermal management system architecture, the corresponding ranges for different thermal management strategies are calculated in real time. For example, the range corresponding to the current thermal management strategy, the range corresponding to utilizing waste heat from the electric drive to heat the battery, the range corresponding to using PTC to actively heat the battery, and the range corresponding to using a heat pump to actively heat the battery are calculated. The thermal management strategy with the longest range among these strategies is selected as the target thermal management strategy, or two or three strategies with the longest range are selected as the target thermal management strategies. When the range information includes an emergency range, the emergency range is calculated. For example, the range corresponding to the target thermal management strategy minus the range of the current strategy equals the emergency range. When the battery charge drops to a certain level, information interaction with the user begins. This interaction can be displayed on a display screen, other displays, or communication devices (such as mobile phones). When the range information includes an emergency range, the emergency range is displayed. When the cruising range information includes the thermal management strategy and the corresponding cruising range, the thermal management strategy and the corresponding cruising range are displayed. The display frequency may be related to the size of the emergency cruising range. For example, when the emergency cruising range is larger, the interaction frequency is higher. When the emergency cruising range is lower than a certain value, the display stops, that is, the interaction with the user stops. After displaying the cruising range information, the user's feedback information is received, that is, whether the user selects the emergency cruising range or selects a certain thermal management strategy. After receiving the user feedback information, the actuator action in the thermal management system is controlled to switch to the target thermal management strategy, increase the current cruising range, and update the cruising range information. If no user feedback information is received or the user selects no, the emergency cruising range is not used and the current thermal management strategy remains unchanged.

[0078] In summary, in the technical solution of the embodiment of the present disclosure, the cruising range corresponding to multiple thermal management strategies is first obtained, and then the cruising range information of the target thermal management strategy is determined based on the cruising range corresponding to the multiple thermal management strategies, and the cruising range information is displayed by controlling the display device (such as an on-board display) for the user to select. The user decides whether to select the target thermal management strategy based on actual needs and in combination with the cruising range information, and issues a control instruction. After receiving the control instruction, the control instruction is responded to, and the vehicle thermal management strategy is controlled according to the control instruction. For example, when the user selects the target thermal management strategy, the vehicle is controlled to switch to the target thermal management strategy; for another example, when the user does not select the target thermal management strategy, the vehicle is controlled to keep the current thermal management strategy unchanged. Thus, the cruising range information is displayed on the display device to conduct human-computer interaction, improve user experience, and control the thermal management strategy according to the control instruction, reduce energy waste caused by misheating, and improve the overall efficiency of the vehicle.

[0079] Corresponding to the above embodiments, the present disclosure also proposes a thermal management control device for a vehicle.

[0080] As shown in Figure 2, the thermal management control device 100 of the vehicle disclosed in the present invention may include: an acquisition module 110 for acquiring the cruising range corresponding to multiple thermal management strategies; a determination module 120 for determining the cruising range information of the target thermal management strategy based on the cruising range corresponding to multiple thermal management strategies; a control module 130 for controlling the display device to display the cruising range information, and responding to control instructions, and controlling the vehicle thermal management strategy according to the control instructions, wherein the control instructions are instructions issued based on the cruising range information of the target thermal management strategy.

[0081] Specifically, the acquisition module 110 obtains the cruising ranges corresponding to multiple thermal management strategies. The determination module 120 then determines the cruising range information for a target thermal management strategy based on the cruising ranges corresponding to the multiple thermal management strategies. The control module 130 controls a display device (e.g., an onboard display screen) to display the cruising range information for user selection. The user decides whether to select the target thermal management strategy based on actual needs and the cruising range information and issues a control command. For example, the user may touch a corresponding position on the display device to confirm or cancel the control command, or may control the display device using a mechanical button to issue the control command. After receiving the control command, the control module 130 responds to the control command and controls the vehicle's thermal management strategy accordingly. For example, when the user selects cruising range information by touching a corresponding position on the display device, the corresponding thermal management strategy is determined based on the user's selected cruising range information and is switched to that thermal management strategy. For another example, if the user does not select cruising range information by touching a corresponding position on the display device, or if the user has not issued a control command within a certain period of time, the current thermal management strategy remains unchanged. Therefore, the mileage information is displayed on the display device to conduct human-computer interaction, improve user experience, give users a sense of technology, and to a certain extent alleviate user anxiety. The thermal management strategy is controlled according to control instructions to reduce energy waste caused by misheating and improve the overall efficiency of the vehicle.

[0082] Furthermore, when the vehicle lacks navigation information, it can interact with the user to select the appropriate thermal management strategy, improving overall vehicle efficiency. When navigation information is available, the vehicle controller can directly determine the appropriate thermal management strategy, or the user can actively select the range information displayed on the display device, enhancing the interaction between the user and the vehicle.

[0083] In some embodiments, the cruising range information includes the emergency cruising range, and the control module 130 controls the vehicle thermal management strategy according to the control instruction, specifically for: when the control instruction is to select the emergency cruising range, switching to the thermal management strategy corresponding to the emergency cruising range; when the control instruction is not to select the emergency cruising range, keeping the current thermal management strategy unchanged.

[0084] Specifically, emergency cruising range generally refers to the additional range that can be provided by the battery when the battery charge level drops below a certain value. For example, the emergency cruising range is the range of the target thermal management strategy minus the range of the current thermal management strategy. For example, when a vehicle is traveling in a low-temperature environment, if the battery charge level is 20% and the range is 10 km, then by heating the battery, the range can be increased to 15 km. In this case, the emergency cruising range is 5 km (15 km - 10 km). During vehicle operation, the control module 130 controls the display device to display the emergency cruising range and interacts with the user for selection. If the user selects the emergency cruising range, indicating that the user requires the battery to maintain a longer range, the control module 130 switches the current thermal management strategy to the thermal management strategy corresponding to the emergency cruising range to increase the vehicle's range. If the user does not select the emergency cruising range, indicating that the user does not require the battery to maintain a longer range, the control module 130 maintains the current thermal management strategy, reducing energy waste and improving the vehicle's overall efficiency.

[0085] In some embodiments, the determination module 120 determines the cruising range information of the target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies, specifically for: determining the target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies; determining the cruising range information based on the target thermal management strategy and its corresponding cruising range.

[0086] In some embodiments, the determination module 120 determines a target thermal management strategy based on the cruising ranges corresponding to the multiple thermal management strategies. Specifically, the determination module 120 is configured to determine a preset number of thermal management strategies as the target thermal management strategy in the order of the cruising ranges corresponding to the multiple thermal management strategies. The preset number can be calibrated based on actual conditions. For example, the preset number can be 1, 2, or 3, and does not exceed the number of thermal management strategies.

[0087] Specifically, the determination module 120 determines the target thermal management strategy based on the cruising ranges corresponding to multiple thermal management strategies. For example, the thermal management strategy with the largest cruising range is used as the target thermal management strategy, or several thermal management strategies with larger cruising ranges can be used as target thermal management strategies. The determination module 120 then uses the target thermal management strategy and its corresponding cruising range as the cruising range information, that is, the cruising range information includes the thermal management strategy and its corresponding cruising range. Among them, when there are multiple target thermal management strategies, the cruising range information includes each thermal management strategy and its corresponding cruising range. The cruising range information of the vehicle is displayed on a display device, providing users with a variety of options so that users can choose according to their own needs, thereby improving the user experience, alleviating user anxiety to a certain extent, and giving users a sense of technology, while also reducing vehicle energy waste.

[0088] In some embodiments, the control module is further configured to determine a time interval for displaying the emergency cruising range according to the emergency cruising range.

[0089] In some embodiments, the control module determines the time interval for displaying the emergency cruising range based on the emergency cruising range. Specifically, if the emergency cruising range is greater than a preset cruising range, the control module determines the time interval based on the emergency cruising range, wherein the time interval decreases as the emergency cruising range increases, and the time interval increases as the emergency cruising range decreases. If the emergency cruising range is less than a preset cruising range threshold, the control module controls the display device to stop displaying the emergency cruising range. The preset cruising range threshold can be calibrated based on actual conditions.

[0090] Specifically, as the battery charge decreases, the emergency range gradually decreases, primarily because battery heating wastes battery power. Therefore, the lower the battery charge, the shorter the emergency range; the higher the battery charge, the longer the emergency range. When the emergency range is high, the interval between displaying the emergency range is shortened, increasing the frequency of user interaction—that is, more frequent reminders—to prevent users from missing information and allowing them to pre-select appropriate thermal management strategies based on their needs, thereby significantly improving the emergency range. When the emergency range is low, the improvement in emergency range is limited, and in this case, the emergency range display can be stopped, eliminating user interaction. For example, when the battery charge is 30%, the emergency range is 10 km, displayed every 30 seconds. When the battery charge is 20%, the emergency range is 6 km, displayed every 45 seconds. When the battery charge is 10%, the emergency range is 1 km, or heating the battery will deplete the remaining charge, so the emergency range display is unnecessary.

[0091] In some embodiments, the control module 130 is further configured to determine that the battery power of the vehicle is less than a preset power threshold before controlling the display device to display the cruising range information.

[0092] That is to say, when the battery power is high, there is no need to display the emergency range, so as to avoid frequent display of the range causing interference to the user. For example, if a user in the passenger seat is using a display device to watch a video, frequently displaying the emergency range will affect the user's mood for watching the video. Therefore, the display device is controlled to display the range information only when the vehicle's battery power is low. This not only reduces the interference of the displayed range information on the user, but also brings a sense of technology to the user. The user can know the size of the emergency range in real time, which to a certain extent alleviates the driver's anxiety caused by the possibility of not being able to reach the destination due to insufficient battery power, and improves the user experience.

[0093] In some embodiments, the multiple thermal management strategies include: heating the battery with waste heat from electric drive, heating the battery with PTC, and heating the battery with a heat pump.

[0094] In some embodiments, the acquisition module 110 acquires the cruising range corresponding to multiple thermal management strategies. Specifically, the module 110 is configured to: obtain the outdoor ambient temperature and the battery temperature; determine the vehicle operating parameters within a preset time period before the current moment based on the outdoor ambient temperature and the battery temperature; and determine the cruising range corresponding to each thermal management strategy based on the battery charge and the vehicle operating parameters. The preset time period can be further calibrated based on actual conditions.

[0095] Specifically, the vehicle operating parameters may include average discharge power, average discharge current, and power consumption per 100 km. For example, the vehicle operating parameters may include average discharge power. During vehicle driving, the acquisition module 110 acquires the outdoor ambient temperature, battery charge W (kmh) and battery cell temperature to determine the average discharge power P (kw) over the past period of time. The dischargeable time t (h) can be determined based on the battery charge and the average discharge power. The range S (km) under each thermal management strategy can be determined by multiplying the dischargeable time by the average vehicle speed V (km / h) over the past period of time. For example, S = (W / P) * V. The average discharge power under different thermal management strategies can be obtained by looking up the table based on the outdoor ambient temperature and battery cell temperature, which can determine the average discharge power under different thermal management strategies, and then determine the range under different thermal management strategies.

[0096] For example, vehicle operating parameters may include average discharge current. During vehicle operation, the remaining battery capacity Q (Ah) can be determined based on the battery charge, and the average discharge current I (A) over a period of time can be determined based on the outdoor ambient temperature, the remaining battery capacity, and the cell temperature. The dischargeable time t (h) can be determined based on the remaining battery capacity and the average discharge current. The range S (km) under each thermal management strategy can be determined by multiplying the dischargeable time by the average vehicle speed V (km / h) over a period of time, for example, S = (Q / P) * V. The average discharge current under different thermal management strategies can be obtained by looking up a table based on the outdoor ambient temperature and the cell temperature, thereby determining the average discharge current under different thermal management strategies, and further determining the range under different thermal management strategies.

[0097] Exemplarily, the vehicle operating parameters may include power consumption per 100 kilometers. During vehicle driving, the cruising range S (km) can be obtained based on the vehicle's power consumption per 100 kilometers E (kwh / 100km) and the battery power W (kmh) under standard cruising conditions, for example, S = (W / E) * 100. According to the outdoor ambient temperature and the battery cell temperature, the power consumption per 100 kilometers under different thermal management strategies can be obtained by looking up the table, and the power consumption per 100 kilometers under different thermal management strategies can be determined, thereby determining the cruising range under different thermal management strategies. Among them, the standard cruising condition can be NEDC (New European Driving Cycle) or CLTC (China Light Vehicle Test Cycle).

[0098] It should be noted that for details not disclosed in the thermal management control device of the vehicle in the embodiment of the present disclosure, please refer to the details disclosed in the thermal management control method of the vehicle in the embodiment of the present disclosure, and the details will not be repeated here.

[0099] In summary, the acquisition module obtains the ranges corresponding to multiple thermal management strategies. The determination module then determines the range information for the target thermal management strategy based on the ranges corresponding to the multiple thermal management strategies. The control module then controls a display device (such as an onboard display screen) to display the range information for the user to select. The user decides whether to select the target thermal management strategy based on actual needs and the range information, and issues a control instruction. After receiving the control instruction, the control module responds to the control instruction and controls the vehicle's thermal management strategy accordingly. For example, if the user selects the target thermal management strategy, the control module controls the vehicle to switch to the target thermal management strategy. Alternatively, if the user does not select the target thermal management strategy, the control module controls the vehicle to maintain the current thermal management strategy. Thus, displaying the range information on the display device facilitates human-computer interaction, improving the user experience. Controlling the thermal management strategy according to the control instruction reduces energy waste caused by inadvertent heating and improves the vehicle's overall efficiency.

[0100] Corresponding to the above embodiments, the present disclosure also proposes a computer-readable storage medium.

[0101] The computer-readable storage medium of the present disclosure stores a vehicle thermal management control program thereon, and the vehicle thermal management control method described above is implemented when the vehicle thermal management control program is executed by a processor.

[0102] Corresponding to the above embodiments, the present disclosure also proposes a vehicle thermal management system.

[0103] As shown in Figure 3, the vehicle thermal management system 200 disclosed in the present invention includes a memory 210, a processor 220, and a vehicle thermal management control program stored in the memory 210 and executable on the processor 220. When the processor 220 executes the vehicle thermal management control program, the above-mentioned vehicle thermal management control method is implemented.

[0104] Corresponding to the above embodiments, the present disclosure also proposes a vehicle.

[0105] As shown in Figure 4, the vehicle 300 of the present disclosure includes a memory 310, a processor 320, and a vehicle thermal management control program stored in the memory 310 and executable on the processor 320. When the processor 320 executes the vehicle thermal management control program, the above-mentioned vehicle thermal management control method is implemented.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure 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 or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure, and they should all be included in the scope of the claims and specification of the present disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A thermal management control method for a vehicle, the method comprising: Obtaining the cruising ranges corresponding to multiple thermal management strategies; Determining the cruising range information of the target thermal management strategy according to the cruising ranges corresponding to the multiple thermal management strategies; Controlling a display device to display the cruising range information; Responding to a control instruction and controlling the vehicle thermal management strategy according to the control instruction, wherein the control instruction is an instruction issued based on the cruising range information of the target thermal management strategy.

2. The thermal management control method of a vehicle according to claim 1, wherein, The cruising range information includes an emergency cruising range. Controlling the vehicle thermal management strategy according to the control instruction includes: When the control instruction is to select the emergency cruising range, switching to the thermal management strategy corresponding to the emergency cruising range; When the control instruction is not to select the emergency cruising range, keeping the current thermal management strategy unchanged.

3. The thermal management control method for a vehicle according to claim 1, wherein, Determining the cruising range information of the target thermal management strategy according to the cruising ranges corresponding to the multiple thermal management strategies includes: Determining the target thermal management strategy according to the cruising ranges corresponding to the multiple thermal management strategies; Determining the cruising range information according to the target thermal management strategy and its corresponding cruising range.

4. The thermal management control method of a vehicle according to claim 3, wherein, Determining the target thermal management strategy according to the cruising ranges corresponding to the multiple thermal management strategies includes: Determining a preset number of thermal management strategies as the target thermal management strategy in the order of the magnitudes of the cruising ranges corresponding to the multiple thermal management strategies.

5. The thermal management control method for a vehicle according to claim 2, wherein, The method further comprises: Determining the time interval for displaying the emergency cruising range according to the emergency cruising range.

6. The thermal management control method for a vehicle according to claim 5, wherein, Determining the time interval for displaying the emergency cruising range according to the emergency cruising range includes: When the emergency cruising range is greater than a preset cruising range, determining the time interval according to the emergency cruising range, wherein the greater the emergency cruising range, the smaller the time interval, and the smaller the emergency cruising range, the larger the time interval; When the emergency cruising range is less than a preset cruising range threshold, controlling the display device to stop displaying the emergency cruising range.

7. The thermal management control method of a vehicle according to any one of claims 1 to 6, wherein, Before controlling the display device to display the cruising range information, the method further comprises: Determining that the battery power of the vehicle is less than a preset power threshold.

8. The thermal management control method for a vehicle according to any one of claims 1 to 7, wherein, The multiple thermal management strategies include: electric drive waste heat heating the battery, PTC heating the battery, and heat pump heating the battery.

9. The thermal management control method for a vehicle according to any one of claims 1 to 8, wherein, Obtaining the cruising ranges corresponding to multiple thermal management strategies includes: Obtaining the outdoor ambient temperature and the battery temperature; Determining the vehicle operating parameters within a preset time before the current moment according to the outdoor ambient temperature and the battery temperature; Determining the cruising range corresponding to each thermal management strategy according to the battery power and the vehicle operating parameters.

10. A thermal management control device for a vehicle, the device comprising: An obtaining module, configured to obtain the cruising ranges corresponding to multiple thermal management strategies; A determining module, configured to determine the cruising range information of the target thermal management strategy according to the cruising ranges corresponding to the multiple thermal management strategies; A control module for controlling a display device to display the remaining mileage information, and responding to a control instruction, and controlling a vehicle thermal management strategy according to the control instruction, where the control instruction is an instruction issued based on the remaining mileage information of the target thermal management strategy.

11. The thermal management control device for a vehicle according to claim 10, wherein, The remaining mileage information includes emergency remaining mileage, and the control module controls the vehicle thermal management strategy according to the control instruction, specifically for: When the control instruction is to select the emergency remaining mileage, switching to the thermal management strategy corresponding to the emergency remaining mileage; When the control instruction is not to select the emergency remaining mileage, keeping the current thermal management strategy unchanged.

12. The thermal management control device for a vehicle according to claim 10, wherein, The determination module determines the remaining mileage information of the target thermal management strategy according to the remaining mileage corresponding to the multiple thermal management strategies, specifically for: Determining the target thermal management strategy according to the remaining mileage corresponding to the multiple thermal management strategies; Determining the remaining mileage information according to the target thermal management strategy and its corresponding remaining mileage.

13. The thermal management control device for a vehicle according to claim 12, wherein, The determination module determines the target thermal management strategy according to the remaining mileage corresponding to the multiple thermal management strategies, specifically for: Determining a preset number of thermal management strategies as the target thermal management strategy in the order of the remaining mileage corresponding to the multiple thermal management strategies strategies.

14. The thermal management control device for a vehicle according to claim 11, wherein, The control module is further configured to: Determine the time interval for displaying the emergency remaining mileage according to the emergency remaining mileage.

15. The thermal management control device for a vehicle according to claim 14, wherein, The control module determines the time interval for displaying the emergency remaining mileage according to the emergency remaining mileage, specifically for: When the emergency remaining mileage is greater than a preset remaining mileage, determining the time interval according to the emergency remaining mileage, where the greater the emergency remaining mileage, the smaller the time interval, and the smaller the emergency remaining mileage, the larger the time interval; When the emergency remaining mileage is less than a preset remaining mileage threshold, controlling the display device to stop displaying the emergency remaining mileage.

16. A computer-readable storage medium, on which a vehicle thermal management control program is stored, and when the vehicle thermal management control program is executed by a processor, it implements the vehicle thermal management control method according to any one of claims 1-9.

17. A vehicle thermal management system, including a memory, a processor, and a vehicle thermal management control program stored on the memory and executable on the processor. When the processor executes the vehicle thermal management control program, it implements the vehicle thermal management control method according to any one of claims 1-9.

18. A vehicle, including a memory, a processor, and a vehicle thermal management control program stored on the memory and executable on the processor. When the processor executes the vehicle thermal management control program, it implements the vehicle thermal management control method according to any one of claims 1-9.

Images