Power-saving control method and device for vehicle

Abstract

An embodiment of the present invention discloses a power-saving control method and device for a vehicle, which can improve the user experience. The method includes: starting a first timer when the power state of the vehicle switches from the OFF state to a non-OFF state; when the power state of the vehicle is in a non-OFF state, if the vehicle meets the power-saving state, starting a second timer, wherein the timing duration of the second timer is greater than that of the first timer; performing a power-saving protection operation when the second timer times out; and during the timing of the second timer, when the remaining power of the high-voltage battery of the vehicle is less than the high-voltage safety threshold, triggering the power-saving protection operation in advance. However, if both the first and second timers are timing, during the timing of the first timer, even if the remaining power of the high-voltage battery of the vehicle is less than the high-voltage safety threshold, the power-saving protection operation is not triggered in advance.

Description

Technical Field

[0001] The present invention relates to vehicle control technology, and in particular to a power-saving control method and device for a vehicle. Background Art

[0002] In a vehicle, the power-saving function is a common functional design point. Especially in a pure electric or hybrid vehicle, electric energy is a very precious resource, so the power-saving function is even more important. However, the power-saving function may reduce the user experience. Summary of the Invention

[0003] A power-saving control method and device for a vehicle according to an embodiment of the present invention can improve the user experience.

[0004] An embodiment of the present invention provides a power-saving control method for a vehicle, including: within a first preset duration after the vehicle is started, prohibiting triggering a power-saving protection operation based on the remaining power of the high-voltage battery of the vehicle and a high-voltage safety threshold.

[0005] Wherein, a first timer is used to time the first preset duration, and when the power state of the vehicle is switched from the OFF state to the ACC state or the ON state, the first timer is started.

[0006] Wherein, within the first preset duration: based on the magnitude relationship between the remaining power of the high-voltage battery of the vehicle and a high-voltage emergency safety threshold, determine whether to trigger the power-saving protection operation; wherein, the high-voltage emergency safety threshold is less than the high-voltage safety threshold.

[0007] Wherein, within the first preset duration, further based on the remaining power of the low-voltage battery of the vehicle and a low-voltage safety threshold, determine whether to trigger the power-saving protection operation.

[0008] Wherein, the method further includes: when the vehicle meets the power-saving condition, starting a second timer for timing a second preset duration; when the second timer times out, performing the power-saving protection operation; and during the timing of the second timer, based on whether the first timer times out and the magnitude relationship between the remaining power of the high-voltage battery of the vehicle and the high-voltage safety threshold, determine whether to perform the power-saving protection operation in advance.

[0009] Wherein, the power-saving condition includes: the power state of the vehicle is the ACC state or the ON state, the gear of the vehicle is in the parking gear, and the speed of the vehicle is lower than a speed threshold.

[0010] Wherein, the power-saving protection operation includes: performing an alarm, and after a third preset duration, performing a power-down operation.

[0011] A power-saving control method for a vehicle according to an embodiment of the present invention includes: starting a first timer when the power state of the vehicle switches from the OFF state to a non-OFF state; when the power state of the vehicle is in a non-OFF state, if the vehicle meets the power-saving state, starting a second timer, where the timing duration of the second timer is greater than that of the first timer; performing a power-saving protection operation when the second timer times out; and during the timing of the second timer, when the vehicle has a first power shortage situation, triggering the power-saving protection operation in advance. However, if both the first and second timers are timing, during the timing of the first timer, even if the vehicle has a first power shortage situation, the power-saving protection operation is not triggered in advance.

[0012] Wherein, during the timing of the first timer, when the vehicle has a second power shortage situation, triggering the power-saving protection operation in advance is allowed, where the second power shortage situation is more serious than the first power shortage situation.

[0013] Wherein, in the case of the first power shortage situation, the remaining power of the high-voltage battery is less than the high-voltage safety threshold. In the case of the second power shortage situation, the remaining power of the high-voltage battery is less than the high-voltage emergency safety threshold; or, in the case of the second power shortage situation, the remaining power of the high-voltage battery is less than the high-voltage emergency safety threshold, and the remaining power of the low-voltage battery is less than the low-voltage safety threshold.

[0014] A computer device according to an embodiment of the present invention includes a memory, a processor, and a computer program stored on the memory, and the processor executes the computer program to implement the steps of the method according to the embodiment of the present invention.

[0015] A computer-readable storage medium according to an embodiment of the present invention stores a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps of the method according to the embodiment of the present invention are implemented.

[0016] A computer program product according to an embodiment of the present invention includes a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps of the method according to the embodiment of the present invention are implemented.

[0017] Advantages of the embodiments of the present invention:

[0018] Within a preset time (or "protection time") after the vehicle starts, it is set to prohibit triggering the power-saving protection operation based on the remaining power of the high-voltage battery of the vehicle and the high-voltage safety threshold. That is to say, within a period of time after the vehicle starts, even if the vehicle is in a stationary safe state, the execution of the power-saving protection operation will not be immediately triggered because the remaining power of the high-voltage battery of the vehicle is less than the high-voltage safety threshold. Designed in this way, it is possible to avoid the problem of poor user experience caused by the vehicle immediately shutting down after the user gets in the car and starts the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other details and advantages of the present invention will become apparent from the following detailed description. It should be understood that the following drawings are merely illustrative and thus cannot be regarded as limiting the present invention. The following will be described in detail with reference to the drawings, wherein:

[0020] Figure 1 is a schematic flowchart of an embodiment of the power-saving control method for a vehicle according to the present invention;

[0021] Figure 2 is a schematic flowchart of another embodiment of the power-saving control method for a vehicle according to the present invention;

[0022] Figure 3 is a schematic flowchart of another embodiment of the power-saving control method for a vehicle according to the present invention;

[0023] Figure 4 is a schematic flowchart of another embodiment of the power-saving control method for a vehicle according to the present invention;

[0024] Figures 5A to 5C is a schematic diagram of an embodiment of several application scenarios of the present invention;

[0025] Figure 6 is a schematic structural diagram of an embodiment of a computer device for implementing the power-saving control method according to the present invention. Detailed Embodiments

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not used to limit the present invention.

[0027] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Moreover, the terms "first", "second", etc. are applicable to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0028] The power-saving function generally means that when the vehicle enters a stationary and safe state, a timer is started to count time. During the counting time, if the vehicle state changes, such as the vehicle starts to move, the timer will be reset. When the counting ends, the vehicle will automatically enter the OFF (shut-down) state to save electric energy. This design is very useful for situations where the vehicle parks for a long time or the driver forgets to turn off the vehicle power supply, and can effectively avoid problems such as over-discharge of the battery and power failure of the whole vehicle, which makes the vehicle unable to start.

[0029] However, the design of triggering the power-saving function only by counting time may be too simple and does not fully consider the actual power condition of the vehicle. If the vehicle power has an alarm or power failure, it may be necessary to immediately execute power-saving protection and give an alarm. This can avoid over-discharge of the battery and prevent the vehicle from breaking down due to insufficient power. Therefore, in some embodiments of the present invention, during the counting time of the timer, the remaining power of the high-voltage battery of the vehicle can be monitored, such as the SOC (State of Charge) of the high-voltage battery. When the remaining power of the high-voltage battery is less than the high-voltage safety threshold, power-saving protection is triggered in advance without waiting for the counting to end. This solution can avoid over-discharge of the battery and prevent the vehicle from breaking down due to insufficient power.

[0030] However, triggering power-saving protection in advance may lead to a reduction in the user experience. For example, in some scenarios, triggering power-saving protection in advance may be manifested as the vehicle stalling immediately after the user gets in the car and starts the vehicle. This will bring great inconvenience and trouble to the user, and may affect the user's trust in the vehicle and the brand. The user may doubt the quality and reliability of the vehicle. Based on this, in some embodiments, within a preset time period (which can be called the "protection time") after the vehicle starts, triggering power-saving protection operations based on the remaining power of the high-voltage battery of the vehicle and the high-voltage safety threshold is prohibited. That is to say, within a period of time after the vehicle starts, power-saving protection operations will not be immediately triggered because the remaining power of the high-voltage battery of the vehicle is less than the high-voltage safety threshold, so that the situation where the vehicle stalls immediately after the user gets in the car and starts the vehicle will not occur, thereby improving the user experience.

[0031] In addition, as a protection mechanism for extreme power shortage of the vehicle, in some embodiments, within the above-mentioned time period, the concept of a high-voltage emergency safety threshold is introduced, that is, when the remaining power of the high-voltage battery of the vehicle is less than the high-voltage emergency safety threshold, immediately triggering power-saving protection operations is still allowed.

[0032] In some other embodiments, based on the high-voltage emergency safety threshold, a low-voltage safety threshold is further introduced, that is, on the above basis, only when the remaining power of the low-voltage battery of the vehicle is lower than the low-voltage safety threshold, immediately triggering power-saving protection operations is allowed.

[0033] By introducing a high-voltage emergency safety threshold and a low-voltage safety threshold, a balance can be fully achieved between power saving and user experience, taking into account both the protection of vehicle power supply and the user's usage experience.

[0034] The following details the solutions of the embodiments of the present invention with specific embodiments.

[0035] First, some general terms involved in the embodiments of the present invention are explained:

[0036] OFF (Closed) state: One of the states of the vehicle power supply mode. When the vehicle is in this state, the whole vehicle is powered off, and except for components that require uninterrupted power supply for 24 hours such as anti-theft and clock, other modules of the whole vehicle are in the sleep state. This is usually the state after the vehicle is normally locked.

[0037] ACC (Accessory Power On) state: One of the states of the vehicle power supply mode. When the vehicle is in this state, power can be supplied to in-vehicle accessory devices (such as audio-visual systems, instrument lights, lights, etc.), but other modules such as window lifters and power sunroofs are not powered. This state usually occurs when the vehicle is not started but the driver needs to use certain electrical devices in the vehicle.

[0038] ON (Full On) state: One of the states of the vehicle power supply mode, which is the state of supplying power to all electrical appliances in the vehicle. When the vehicle is in this state, the whole vehicle is powered on and the vehicle can be started.

[0039] High-voltage battery: Also known as the "power battery", it is the "heart" of new energy vehicles and provides energy for the vehicle's power system. It is mainly composed of lithium battery monomers, such as lithium nickel cobalt manganese oxide battery (NCM) or lithium nickel cobalt aluminum oxide battery (NCA), etc., and is combined into a battery pack in series and parallel to meet the vehicle's energy requirements. The battery management system (BMS) is integrated inside the battery pack, which is responsible for monitoring the battery status, including voltage, current, temperature, as well as the state of charge (remaining power) and health state of the battery, to ensure the safety of the battery and extend its service life. The main function of the high-voltage battery is to convert electrical energy into mechanical energy to drive the vehicle.

[0040] Low-voltage battery: Generally refers to the 12V battery used to start the vehicle, which mainly supplies power to in-vehicle electronic systems, such as in-vehicle entertainment systems, lighting systems, instrument panels, etc. It ensures the normal operation of these devices during vehicle driving, improving driving comfort and safety.

[0041] As Figure 1 shown, it is a schematic flow chart of an embodiment of the power-saving control method for vehicles of the present invention, which includes the steps:

[0042] Step S11: Monitor the power state of the vehicle.

[0043] Step S12: When it is detected that the power state of the vehicle switches from the OFF state to a non - OFF state (such as the ACC state or the ON state), start the first timer.

[0044] Step S13: Before the first timer times out, prohibit triggering a power - saving protection operation based on the remaining power of the vehicle's high - voltage battery and the high - voltage safety threshold.

[0045] In step S13, the power - saving protection operation can be, for example: performing an alarm to prompt low power, and after a set preset duration (such as half a minute, 1 minute, etc.), performing a power - off operation, such as switching the power state of the vehicle to the OFF state.

[0046] In step S13, prohibiting triggering a power - saving protection operation based on the remaining power of the vehicle's high - voltage battery and the high - voltage safety threshold means that when the remaining power of the vehicle's high - voltage battery is less than the high - voltage safety threshold, the power - saving protection operation is not triggered either. That is, within a preset period after the vehicle starts, low power of the high - voltage battery can be tolerated.

[0047] It should be noted that the low - voltage battery is generally charged by the high - voltage battery. Therefore, when the remaining power of the high - voltage battery is lower than the high - voltage safety threshold, the low - voltage battery is generally not affected. Thus, the low - voltage battery is not considered temporarily in this embodiment.

[0048] In this embodiment, by tolerating low power of the high - voltage battery, the purpose of improving the user experience is achieved.

[0049] As Figure 2 shown, it is a flowchart of another embodiment of the power - saving control method for a vehicle according to the present invention, which includes the steps:

[0050] Step S21: Monitor the power state of the vehicle.

[0051] Step S22: When it is detected that the power state of the vehicle switches from the OFF state to a non - OFF state (such as the ACC state or the ON state), start the first timer.

[0052] Step S23: Determine whether the first timer times out. If it does not time out, execute step S24. If it times out, execute step S21.

[0053] Step S24: Monitor the remaining power of the vehicle's high - voltage battery.

[0054] Step S25: Compare the size relationship between the remaining power of the vehicle's high - voltage battery and the high - voltage emergency safety threshold. When the remaining power is greater than the high - voltage emergency safety threshold, execute step S23. When the remaining power is less than the high - voltage emergency safety threshold, execute step S26.

[0055] Step S26: Determine whether the vehicle is stationary and safe, for example, determine whether the gear of the vehicle is in the P gear, whether the vehicle speed is less than a threshold value, and so on. If so, execute Step S27.

[0056] Step S27: Execute power-saving protection.

[0057] In this embodiment, the high-voltage emergency safety threshold is less than the high-voltage safety threshold of the previous embodiment. For example, the high-voltage safety threshold can be 10%, and the high-voltage emergency safety threshold can be 3% or 5% or 7%, etc.

[0058] In this embodiment, when the remaining power of the high-voltage battery is lower than the high-voltage emergency safety threshold, for example, the high-voltage emergency safety threshold can be 3%. When the remaining power is 2%, at this time, power-saving protection is of higher importance compared to the user experience, so power-saving protection is executed.

[0059] Before power-saving, confirm that the vehicle is in a stationary and safe state, which can avoid safety problems.

[0060] As Figure 3 shown, it is a schematic flowchart of another embodiment of the power-saving control method for a vehicle according to the present invention, which includes the steps:

[0061] Step S31: Monitor the power supply state of the vehicle.

[0062] Step S32: When it is monitored that the power supply state of the vehicle switches from the OFF state to a non-OFF state (such as the ACC state or the ON state), start the first timer.

[0063] Step S33: Determine whether the first timer times out. If it does not time out, execute Step S34. If it times out, execute Step S31.

[0064] Step S34: Monitor the remaining power of the high-voltage battery and the low-voltage battery of the vehicle.

[0065] Step S35: Compare the relationship between the remaining power of the high-voltage battery of the vehicle and the high-voltage emergency safety threshold, and compare the relationship between the remaining power of the low-voltage battery of the vehicle and the low-voltage safety threshold. When the remaining power of the high-voltage battery is less than the high-voltage emergency safety threshold and the remaining power of the low-voltage battery is less than the low-voltage safety threshold, execute Step S36. Otherwise, execute Step S33.

[0066] Step S36: Determine whether the vehicle is stationary and safe, for example, determine whether the gear of the vehicle is in the P gear, whether the vehicle speed is less than a threshold value, and so on. If so, execute Step S37.

[0067] Step S37: Execute power-saving protection.

[0068] In this embodiment, the low-voltage safety threshold can be set to, for example, 8% or 9% or 10%, etc. It should be noted that the magnitudes of all mentioned thresholds, such as the high-voltage emergency safety threshold, the high-voltage safety threshold, and the low-voltage safety threshold, can be set based on the actual situation and are not subject to special restrictions.

[0069] In some embodiments, the high-voltage emergency safety threshold can be set to 7%, and the low-voltage safety threshold can be set to 8%. Thus, for example, when it is monitored that the remaining power of the high-voltage battery is 6%, which is less than 7%, but the remaining power of the low-voltage battery is 20%, power-saving protection may not be executed. Only when the remaining power of the low-voltage battery drops below 8% will power-saving protection be executed.

[0070] In addition, when power-saving protection is executed, the vehicle needs to be in a stationary and safe state to avoid safety problems caused by power-saving protection.

[0071] In this embodiment, not only the remaining power of the high-voltage battery is considered, but the remaining power of the low-voltage battery is also introduced into the solution, so as to more comprehensively control the power supply state of the whole vehicle and achieve a balance between power-saving protection and user experience.

[0072] As Figure 4 shown, it is a schematic flowchart of another embodiment of the power-saving control method for a vehicle according to the present invention, which includes the steps:

[0073] Step S41: Monitor the state of the vehicle.

[0074] Step S42: When it is monitored that the state of the vehicle meets the power-saving conditions, start the second timer.

[0075] Among them, the power-saving conditions can be, for example: the power supply state of the vehicle is in the ACC state or the ON state, the gear of the vehicle is in the park gear, and the speed of the vehicle is lower than the speed threshold. Of course, those skilled in the art can reasonably set the power-saving conditions based on actual needs. For example, in some embodiments, the power-saving conditions can further include: the vehicle is not in a diagnostic session, the vehicle is not in an OTA (Over-the-Air) upgrade, etc.

[0076] Step S43: Determine whether the second timer times out. If it times out, execute step S46. If it does not time out, execute step S44.

[0077] Step S44: Determine whether the first timer times out. Among them, the start of the first timer refers to that described in the foregoing embodiment. When the first timer times out, execute step S45. When the first timer does not time out, execute the logic of the foregoing embodiment.

[0078] Step S45: Determine whether the remaining power of the high-voltage battery of the vehicle is less than the high-voltage safety threshold. If it is less, execute step S46.

[0079] Step S46: Determine whether the vehicle is stationary and safe. If so, execute Step S47. Since the vehicle is in a power-saving condition when it is stationary and safe, in Step S46, it is possible to confirm whether the power-saving indication signal (this signal is set to 1 when the power-saving condition is met) is still valid, so as to achieve the purpose of determining whether the vehicle is stationary and safe.

[0080] Step S47: Execute power-saving protection.

[0081] In this embodiment, the timing duration of the second timer is greater than that of the first timer. For example, the timing duration of the second timer can be 15 minutes, 18 minutes or 20 minutes, and the timing duration of the first timer can be 3 minutes, 5 minutes or 7 minutes. Those skilled in the art can reasonably determine based on specific situations such as vehicle models, and are not limited herein.

[0082] In this embodiment, during the timing of the second timer, based on whether the first timer times out and the relationship between the remaining power of the vehicle's high-voltage battery and the high-voltage safety threshold, it is determined whether to execute the power-saving protection operation in advance. That is to say, during the timing of the first timer, even if the remaining power of the high-voltage battery is less than the high-voltage safety threshold, the power-saving protection operation will not be triggered. Therefore, the user experience can be improved.

[0083] In addition, in this embodiment, the timing of the first timer does not need to be interrupted because the first timer is mainly used to prevent the power-saving protection operation from being triggered when the remaining power of the high-voltage battery is less than the high-voltage safety threshold. The second timer can reset the second timer when the power-saving condition is not met. For example, during the timing of the second timer, if the vehicle starts to move, the second timer is reset.

[0084] In addition, according to the start conditions of the first timer and the second timer, the start timing of the first timer is generally when the user gets in the car for the first time, and the second timer can be started throughout the user's entire driving period. However, when the user gets in the car for the first time, since the vehicle is generally in a stationary and safe state, the first and second timers will start approximately at the same time.

[0085] In addition, when performing the power-saving protection operation, it is necessary to confirm that the vehicle is in a stationary and safe state to avoid safety problems caused by the vehicle powering off during movement.

[0086] As Figures 5A to 5C shown, it is a schematic diagram of several actual application scenarios of this embodiment. Assume that in Figures 5A to 5CAmong them, the vehicles all start at time A, that is, switch from the OFF state to the ACC or ON state, and the vehicles always meet the power-saving conditions, such as the gear position being in the P gear and the vehicle being stationary. In addition, it is assumed that the high-voltage emergency safety threshold is 7%, the high-voltage safety threshold is 10%, and the low-voltage safety threshold is 8%.

[0087] As Figure 5A shown, at time A, timer 1 and timer 2 start timing. At time B, timer 1 times out. Since during the entire time period, the remaining voltage of the high-voltage battery is greater than 90%, that is, the vehicle has sufficient power. Therefore, the vehicle will start a timer 3 when timer 2 times out, that is, at time C, and power off (i.e., turn off the engine) when timer 3 times out, that is, at time D.

[0088] As Figure 5B shown, at time A, timer 1 and timer 2 start timing. During the period AB, the remaining power of the high-voltage battery is 8%, which is greater than the high-voltage emergency safety threshold and less than the high-voltage safety threshold. Therefore, timer 3 will not start before timer 1 times out. When timer 1 times out, timer 3 is immediately started and power off (i.e., turn off the engine) when timer 3 times out.

[0089] As Figure 5C shown, at time A, timer 1 and timer 2 start timing. At B1, the remaining power of the high-voltage battery is less than 7%, that is, less than the high-voltage emergency safety threshold, and the remaining power of the low-voltage battery is less than 8%, that is, less than the low-voltage safety threshold. At this time, although timer 1 has not timed out, timer 3 will still be started and power off (i.e., turn off the engine) when timer 3 times out.

[0090] As Figure 6 shown, it is a schematic structural diagram of an embodiment of the computer device of the present invention. The computer device 6 includes: a memory 60, a processor 62, and a computer program stored on the memory 60. The processor 52 executes the computer program to implement the steps of the method of the embodiment of the present invention.

[0091] In addition, the embodiment of the present invention also provides a computer-readable storage medium, on which a computer program / instructions are stored. When the computer program / instructions are executed by a processor, the steps of the method described in the embodiment of the present invention are implemented.

[0092] In addition, the embodiment of the present invention also provides a computer program product, including computer program / instructions. When the computer program / instructions are executed by a processor, the steps of the method described in the embodiment of the present invention are implemented.

[0093] The descriptions of the above device, storage medium, and program product embodiments are similar to the descriptions of the above method embodiments and have similar beneficial effects to those of the method embodiments. For technical details not disclosed in the device, storage medium, and program product embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0094] The above-mentioned processor can be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a Central Processing Unit (CPU), a controller, a microcontroller, a microprocessor, etc. It can be understood that other electronic devices can also implement the functions of the above-mentioned processor, and the embodiments of this application do not make specific limitations.

[0095] The above computer storage medium / memory can 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), a Ferromagnetic Random Access Memory (FRAM), a Flash Memory, a magnetic surface memory, an optical disc, or a Compact Disc Read-Only Memory (CD-ROM), etc.; it can also be various terminals including one or any combination of the above memories, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc.

[0096] It should be noted that the above description is only an example and not a limitation of the present invention. In other embodiments of the present invention, the method may have more, fewer or different steps, and the relationships such as the order, inclusion and functions between the steps may be different from those described and illustrated. For example, multiple steps can usually be combined into a single step, and a single step can also be split into multiple steps. For those of ordinary skill in the art, without creative efforts, the changes in the sequence of each step are also within the protection scope of the present invention.

[0097] Essentially, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.), or a processor or a microcontroller to execute all or part of the steps of the method described in various embodiments of the present invention.

[0098] Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above method embodiments.

[0099] Although the present invention has been disclosed above with preferred embodiments, the present invention is not limited thereto. Any person skilled in the art, without departing from the spirit and scope of the present invention, makes various changes and modifications, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. A power-saving control method for a vehicle, characterized in that, including: within a first preset duration after the vehicle starts: when the remaining power of the high-voltage battery of the vehicle is less than the high-voltage safety threshold, no power-saving protection operation is performed; when the remaining power of the high-voltage battery of the vehicle is less than the high-voltage emergency safety threshold, a power-saving protection operation is performed, and the high-voltage emergency safety threshold is less than the high-voltage safety threshold; when the vehicle meets the power-saving condition, a second preset duration is timed, and when the second preset duration expires, the power-saving protection operation is performed, and the second preset duration is greater than the first preset duration; wherein, within the second preset duration: if the first preset duration has not expired and the remaining power of the high-voltage battery of the vehicle is less than the high-voltage safety threshold, no power-saving protection operation is performed; if the first preset duration has not expired and the remaining power of the high-voltage battery of the vehicle is less than the high-voltage emergency safety threshold, the power-saving protection operation is performed; if the first preset duration has expired and the remaining power of the high-voltage battery of the vehicle is less than the high-voltage safety threshold, the power-saving protection operation is performed; wherein, the power-saving condition includes: the power state of the vehicle is in the ACC state or ON state, and the gear of the vehicle is in the park gear and the speed of the vehicle is lower than the speed threshold.

2. The power-saving control method for a vehicle according to claim 1, characterized in that, A first timer is used to time the first preset duration, and when the power state of the vehicle switches from the OFF state to the ACC state or ON state, the first timer is started.

3. The power-saving control method for a vehicle according to claim 1, characterized in that, Within the first preset duration, further based on the remaining power of the low-voltage battery of the vehicle and the low-voltage safety threshold, it is determined whether to perform the power-saving protection operation.

4. The power-saving control method for a vehicle according to claim 3, characterized in that, Within the first preset duration, when the remaining power of the high-voltage battery of the vehicle is less than the high-voltage emergency safety threshold and the remaining power of the low-voltage battery is less than the low-voltage safety threshold, the power-saving protection operation is performed.

5. The power saving control method for a vehicle according to claim 2, characterized in that, A second timer is used to time the second preset duration.

6. The power-saving control method for a vehicle according to claim 1, characterized in that, The power-saving protection operation includes: performing an alarm, and performing a power-off operation after a third preset duration.

7. The power-saving control method for a vehicle according to claim 5, characterized in that, During the timing of the second timer, if the power-saving condition is not met, the second timer is reset; When the user gets in the vehicle for the first time, the first and second timers are started simultaneously; When performing the power-saving protection operation, it is confirmed that the vehicle is in a stationary and safe state.

8. A power-saving control method for a vehicle, characterized in that, including: when the power state of the vehicle switches from the OFF state to a non-OFF state, the first timer is started; when the power state of the vehicle is in a non-OFF state, if the vehicle meets the power-saving condition, the second timer is started, and the timing duration of the second timer is greater than that of the first timer; when the second timer expires, the power-saving protection operation is performed; and during the timing of the second timer: when the first timer expires and the vehicle has a first power shortage situation, the power-saving protection operation is triggered; when the first timer has not expired and the vehicle has a first power shortage situation, triggering the power-saving protection operation is prohibited; wherein, during the timing of the first timer, when the vehicle has a second power shortage situation, triggering the power-saving protection operation in advance is allowed, and the second power shortage situation is more serious than the first power shortage situation; Wherein, the power-saving condition includes: the power state of the vehicle is in the ACC state or the ON state, and the gear of the vehicle is in the parking gear and the speed of the vehicle is lower than the speed threshold.

9. The power-saving control method for a vehicle according to claim 8, characterized in that, Reset the second timer when the power-saving condition is not satisfied.

10. A computer device, comprising a memory, a processor, and a computer program stored on the memory, characterized in that, The processor executes the computer program to implement the steps of the method according to any one of claims 1 to 9.

11. A computer-readable storage medium having computer programs / instructions stored thereon, characterized in that, When the computer program / instructions are executed by the processor, the steps of the method according to any one of claims 1 to 9 are implemented.

12. A computer program product, comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, the steps of the method according to any one of claims 1 to 9 are implemented.

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