Hybrid mower battery control method and device, storage medium and electronic equipment

Abstract

The invention provides a hybrid mower battery control method and device, a storage medium and electronic equipment, and is applied to the technical field of hybrid mower battery control, and the hybrid mower battery control method comprises the following steps: when a hybrid mower is in a working state, detecting the cell temperature and the charge state of a battery of the hybrid mower in real time; when the battery cell temperature does not meet the alarm condition, determining a working environment temperature interval of the battery based on the battery cell temperature; and based on the cell temperature, the state of charge and the control strategy corresponding to the working environment temperature interval, controlling the charging and discharging state of the battery and the working state of a range extender of the hybrid mower, so that the working rate of the battery is maintained in a preset working rate interval, and the state of charge of the battery is maintained in a preset numerical value interval. The current output by the battery is stabilized in the current range in which the temperature of the battery cannot rise to the alarm temperature, so that the temperature of the battery is prevented from rising to the alarm temperature, and the negative influence on the performance of the mower is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of battery control for hybrid lawn mowers, and particularly to a control method and device for a battery of a hybrid lawn mower, a storage medium, and an electronic device. Background Art

[0002] In the development of modern gardening tools, the hybrid lawn mower, as an innovative product that combines traditional gasoline power and electric drive technology, has gradually gained a foothold in the market.

[0003] When the hybrid lawn mower is working, its electric drive mechanism needs to receive power from the generator for driving. During this process, the battery will undergo continuous charge and discharge cycles. As the battery charges and discharges, certain heat will be generated inside, resulting in an increase in the battery temperature. If the battery temperature is too high, it will have various negative impacts on the performance of the lawn mower.

[0004] Therefore, how to effectively control the temperature of the battery of the hybrid lawn mower during operation has become an urgent technical problem to be solved. Summary of the Invention

[0005] In view of this, embodiments of the present application provide a control method and device for a battery of a hybrid lawn mower, a storage medium, and an electronic device. By detecting the core temperature and state of charge of the battery of the hybrid lawn mower, the charge and discharge state of the battery of the hybrid lawn mower and the working state of the range extender are controlled, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset numerical range, thereby controlling the temperature of the battery to be maintained within a stable range, avoiding the battery temperature from being too high, and improving the performance of the hybrid lawn mower.

[0006] To achieve the above object, the embodiments of the present application provide the following technical solutions:

[0007] A control method for a battery of a hybrid lawn mower, comprising:

[0008] When the hybrid lawn mower is in a working state, real-time detect the core temperature and state of charge of the battery of the hybrid lawn mower;

[0009] When the core temperature does not meet the preset warning condition, determine the working environment temperature range where the battery is located based on the core temperature;

[0010] Based on the core temperature, the state of charge, and the control strategy corresponding to the working environment temperature range, control the charge and discharge state of the battery and control the working state of the range extender of the hybrid lawn mower, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset numerical range.

[0011] Optionally, the above method further includes:

[0012] When the temperature of the battery cell meets a preset warning condition, control the operating state of the battery based on the temperature of the battery cell and issue a high-temperature warning.

[0013] Optionally, in the above method, the controlling the operating state of the battery based on the temperature of the battery cell includes:

[0014] When the temperature of the battery cell is within a preset first warning temperature range, limit the power of the battery for operation;

[0015] When the temperature of the battery cell is within a preset second warning temperature range, control the battery to be in a stopped working state.

[0016] Optionally, in the above method, the controlling the charge and discharge state of the battery and the working state of the range extender of the hybrid lawn mower based on the temperature of the battery cell, the state of charge, and a control strategy corresponding to the working environment temperature range, so that the working rate of the battery is maintained within a preset working rate range and the state of charge of the battery is maintained within a preset numerical range, includes:

[0017] Based on a control strategy corresponding to the working environment temperature range and the state of charge, determine whether the opening condition of the range extender of the hybrid lawn mower is met;

[0018] When the opening condition of the range extender of the hybrid lawn mower is met, turn on the range extender;

[0019] According to a control strategy corresponding to the working environment temperature range, control the state of charge of the battery to reach a preset state value, and based on the load condition of the hybrid lawn mower, control the power generation power of the range extender and the charge and discharge state of the battery, so that the working rate of the battery is maintained within a preset working rate range and the state of charge of the battery is maintained within a preset numerical range.

[0020] Optionally, in the above method, the controlling the state of charge of the battery to reach a preset state value according to a control strategy corresponding to the working environment temperature range includes:

[0021] When the state of charge of the battery is lower than the preset state value, charge the battery until the state of charge of the battery reaches the preset state value;

[0022] When the state of charge of the battery is higher than the preset state value, discharge the battery according to a control strategy corresponding to the working environment temperature range until the state of charge of the battery reaches the preset state value.

[0023] A control device for a hybrid lawn mower battery, comprising:

[0024] A detection unit, configured to, when the hybrid lawn mower is in a working state, detect in real time the cell temperature and state of charge of the battery of the hybrid lawn mower;

[0025] A determination unit, configured to, when the cell temperature does not meet a preset warning condition, determine the working environment temperature range where the battery is located based on the cell temperature;

[0026] A control unit, configured to control the charge and discharge state of the battery and the working state of the range extender of the hybrid lawn mower based on the cell temperature, the state of charge, and a control strategy corresponding to the working environment temperature range, so as to maintain the working rate of the battery within a preset working rate range and maintain the state of charge of the battery within a preset numerical range.

[0027] Optionally, the above-mentioned device further comprises:

[0028] An alarm unit, configured to, when the cell temperature meets a preset warning condition, control the operating state of the battery based on the cell temperature and issue a high-temperature alarm.

[0029] Optionally, in the above-mentioned device, the process of the alarm unit executing the control of the operating state of the battery based on the cell temperature includes:

[0030] When the cell temperature is within a preset first warning temperature range, limit the power of the battery for operation;

[0031] When the cell temperature is within a preset second warning temperature range, control the battery to be in a stopped working state.

[0032] Optionally, in the above-mentioned device, the process of the control unit executing the control of the charge and discharge state of the battery and the working state of the range extender of the hybrid lawn mower based on the cell temperature, the state of charge, and a control strategy corresponding to the working environment temperature range, so as to maintain the working rate of the battery within a preset working rate range and maintain the state of charge of the battery within a preset numerical range, includes:

[0033] Determine whether the opening condition of the range extender of the hybrid lawn mower is met based on the control strategy corresponding to the working environment temperature range and the state of charge;

[0034] When the opening condition of the range extender of the hybrid lawn mower is met, turn on the range extender;

[0035] According to the control strategy corresponding to the working environment temperature range, control the state of charge of the battery to reach a preset state value, and based on the load condition of the hybrid lawn mower, control the power generation power of the range extender and control the charge and discharge state of the battery, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset value range.

[0036] For the above device, optionally, the process in which the control unit controls the state of charge of the battery to reach a preset state value according to the control strategy corresponding to the working environment temperature range includes:

[0037] When the state of charge of the battery is lower than the preset state value, charge the battery until the state of charge of the battery reaches the preset state value;

[0038] When the state of charge of the battery is higher than the preset state value, discharge the battery based on the control strategy corresponding to the working environment temperature range until the state of charge of the battery reaches the preset state value.

[0039] A storage medium, the storage medium includes stored instructions, wherein when the instructions are running, control the device where the storage medium is located to execute the control method of the hybrid lawn mower battery as described above.

[0040] An electronic device, including a memory, and one or more instructions, wherein one or more instructions are stored in the memory and are configured to be executed by one or more processors to execute the control method of the hybrid lawn mower battery as described above.

[0041] Compared with the prior art, the present application has the following advantages:

[0042] The present application provides a control method and device, a storage medium and an electronic device for a hybrid lawn mower battery, including: when the hybrid lawn mower is in a working state, real-time detect the cell temperature and the state of charge of the battery of the hybrid lawn mower; when the cell temperature does not meet the preset warning condition, determine the working environment temperature range where the battery is located based on the cell temperature; based on the cell temperature, the state of charge and the control strategy corresponding to the working environment temperature range, control the charge and discharge state of the battery and control the working state of the range extender of the hybrid lawn mower, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset value range. By controlling the working rate of the battery to be maintained within a preset working rate range and the state of charge of the battery to be maintained within a preset value range, the current output by the battery is stabilized within a current range that will not raise the battery temperature to the warning temperature, avoiding the battery temperature from rising to the warning temperature and avoiding negative impacts on the performance of the lawn mower. Brief Description of the Drawings

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0044] Figure 1 It is a flowchart of a control method for a battery of a hybrid lawn mower provided by an embodiment of the present application;

[0045] Figure 2 It is a flowchart of a method for controlling the charge and discharge state of a battery and the working state of a range extender of a hybrid lawn mower based on a control strategy corresponding to the cell temperature, state of charge, and working environment temperature range, so as to maintain the working rate of the battery within a preset working rate range and maintain the state of charge of the battery within a preset numerical range;

[0046] Figure 3 It is a schematic structural diagram of a control device for a battery of a hybrid lawn mower provided by an embodiment of the present application;

[0047] Figure 4 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application. Detailed Description of the Embodiments

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0049] In the present application, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the phrase "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0050] As known from the background art, during the operation of a lawn mower, the battery will continuously charge and discharge, and the battery temperature will continue to rise during this process. Currently, the method for cooling the battery is to install a liquid cooling plate or other cooling media such as coolant to take away the battery heat, thereby reducing the battery temperature. This cooling method requires installing cooling media on the lawn mower, increasing the weight and volume of the lawn mower, and also increasing the cost of the lawn mower.

[0051] To solve the above problems, based on the detected core temperature and state of charge of the battery, this application controls the charge and discharge state of the battery of the lawn mower and the operating state of the range extender, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset numerical range, so that the current output by the battery is stable within a range that will not cause the battery temperature to rise to the warning temperature, avoiding the impact of high temperature on the performance of the lawn mower, and the lawn mower does not need to be additionally equipped with cooling media, reducing the cost of the lawn mower.

[0052] This application can be used for hybrid lawn mowers. The hybrid lawn mower includes a processing device and a controller. The processing device or controller can be, for example: a computer, a multi-processor device, a distributed computing environment including any of the above devices or equipment, and so on.

[0053] Refer to Figure 1 , which is a flowchart of a control method for the battery of a hybrid lawn mower provided by an embodiment of this application, and is specifically described as follows:

[0054] S101. When the hybrid lawn mower is in the working state, the core temperature and state of charge of the battery of the hybrid lawn mower are detected in real time.

[0055] The state of charge is the ratio of the current stored electricity of the battery to its total capacity, and can be represented by SOC.

[0056] When the hybrid lawn mower is in the working state, a temperature sensor is used to detect the core temperature of the battery of the hybrid lawn mower in real time, and various parameters of the battery state are detected by a sensor. Then, the processing device of the hybrid lawn mower processes the various parameters to obtain the state of charge of the battery.

[0057] S102. When the core temperature does not meet the preset warning condition, determine the working environment temperature range where the battery is located based on the core temperature.

[0058] After detecting the core temperature, determine whether the core temperature meets the preset warning condition. The judgment process is as follows:

[0059] When the core temperature is greater than or equal to the preset first warning temperature, it is determined that the core temperature meets the preset warning condition;

[0060] When the temperature of the battery cell is greater than or equal to a preset second warning temperature, it is determined that the temperature of the battery cell meets the preset warning condition;

[0061] When the temperature of the battery cell is less than the first warning temperature and less than the second warning temperature, it is determined that the temperature of the battery cell meets the preset warning condition; Further, the first warning temperature is less than the second warning temperature, that is, when the temperature of the battery cell is less than the first warning temperature, it can be determined that the temperature of the battery cell meets the preset warning condition.

[0062] Preferably, the specific values of the first warning temperature and the second warning temperature can be set according to actual needs. Specifically, the first warning temperature can be set to 55 °C, and the second warning temperature can be set to 60 °C.

[0063] Further, when the temperature of the battery cell meets the preset warning condition, the operating state of the battery is controlled based on the temperature of the battery cell, and a high-temperature warning is issued.

[0064] Exemplarily, the process of controlling the operating state of the battery based on the temperature of the battery cell is as follows: when the temperature of the battery cell is within a preset first warning temperature range, the power of the battery is limited; when the temperature of the battery cell is within a preset second warning temperature range, the battery is controlled to be in a stopped working state.

[0065] In this application, the first warning temperature range can be expressed as [T1, T2), and the second warning temperature range can be expressed as [T2, T3), where T1 can be the first warning temperature, T2 can be the second warning temperature, and T3 can be the highest temperature that the battery can withstand. T1, T2, and T3 can be set according to actual needs.

[0066] Preferably, the working environment temperature range can be one of a low-temperature working range, a normal-temperature working range, and a high-temperature working range. Exemplarily, the low-temperature working range can be 0 °C to 20 °C, the normal-temperature working range can be 20 °C to 45 °C, and the high-temperature working range can be 45 °C to 60 °C; Further, the low-temperature working range, the normal-temperature working range, and the high-temperature working range can be set according to the charge and discharge capabilities of the battery or according to actual needs.

[0067] S103. Based on the temperature of the battery cell, the state of charge, and the control strategy corresponding to the working environment temperature range, control the charge and discharge state of the battery and the working state of the range extender of the hybrid lawn mower, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset numerical range.

[0068] Exemplarily, the battery sends its charge and discharge capabilities to the total controller, i.e., the vehicle control unit, through bus communication. The total controller combines the battery's charge and discharge capabilities with the actual working load to limit the battery's output capacity to not exceed its maximum discharge capacity, thereby maintaining the battery's working rate within a preset working rate range and also adjusting the battery's state of charge to reach a preset range.

[0069] Referring to Figure 2 , the flowchart of the method for controlling the charge and discharge state of the battery and the working state of the range extender of the hybrid lawn mower based on the control strategy corresponding to the cell temperature, state of charge, and the working environment temperature range provided by the embodiments of the present application, so as to maintain the working rate of the battery within a preset working rate range and maintain the state of charge of the battery within a preset numerical range is specifically described as follows:

[0070] S201. Determine whether the starting condition of the range extender of the hybrid lawn mower is satisfied based on the control strategy corresponding to the working environment temperature range and the state of charge.

[0071] It should be noted that the range extender has three starting modes, namely, the automatic starting mode, the forced starting mode, and the manual starting mode; different starting modes have different starting conditions.

[0072] The content of the control strategy corresponding to different working environment temperature ranges is different.

[0073] When the working environment temperature range is the low-temperature working range, the process of determining whether the starting condition of the range extender of the hybrid lawn mower is satisfied is as follows:

[0074] When the state of charge is within a preset numerical range, the range extender satisfies the automatic starting mode. At this time, the starting condition of the automatic starting mode is satisfied, and the range extender can be automatically started; preferably, the preset numerical range can be 50% ± 5%;

[0075] When the state of charge is less than or equal to the first value and the cell temperature is less than or equal to the first temperature, the range extender satisfies the forced starting mode. At this time, the starting condition of the range extender is satisfied, and the range extender is forcibly started; preferably, the first value can be 30%, and the first temperature can be 45°C;

[0076] When the state of charge is within the first preset range, the range extender satisfies the manual starting mode and, when receiving a start command, satisfies the starting condition of the range extender. At this time, the range extender is started; preferably, the first preset range is [30%, 80%].

[0077] When the working environment temperature range is the normal-temperature working range, the process of determining whether the starting condition of the range extender of the hybrid lawn mower is satisfied is as follows:

[0078] When the state of charge is within a preset numerical range, the range extender meets the automatic start mode. At this time, the start conditions for the automatic start mode are met, and the range extender can be automatically started. Preferably, the preset numerical range can be 50% ± 5%.

[0079] When the state of charge is less than or equal to the first numerical value and the cell temperature is less than or equal to the first temperature, the range extender meets the forced start mode. At this time, the start conditions for the range extender are met, and the range extender is forcibly started. Preferably, the first numerical value can be 30%, and the first temperature can be 45°C;

[0080] When the state of charge is less than or equal to the second numerical value and the cell temperature is greater than the first temperature, the range extender meets the forced start mode. At this time, the start conditions for the range extender are met, and the range extender is forcibly started. Preferably, the second numerical value can be 80%, and the first temperature can be 45°C;

[0081] When the state of charge is within the first preset range, the range extender meets the manual start mode, and when a start command is received, the start conditions for the range extender are met, and the range extender is started at this time. Preferably, the first preset range is [30%, 80].

[0082] When the working environment temperature range is the high-temperature working range, the process of determining whether the start conditions for the range extender of the hybrid lawn mower are met is as follows:

[0083] When the state of charge is less than or equal to the second numerical value and the cell temperature is greater than the first temperature, the range extender meets the forced start mode, and the start conditions for the range extender are met, and the range extender is started at this time.

[0084] When the state of charge is greater than the second numerical value and the cell temperature is greater than the first temperature, the battery is discharged according to a preset temperature chart. When the state of charge of the battery discharges to the second numerical value, the range extender meets the forced start mode. At this time, the start conditions for the range extender are met, and the range extender is started.

[0085] S202. When the start conditions for the range extender of the hybrid lawn mower are met, start the range extender.

[0086] S203. According to the control strategy corresponding to the working environment temperature range, control the state of charge of the battery to reach the preset state value, and based on the load condition of the hybrid lawn mower, control the power generation power of the range extender and the charge and discharge state of the battery, so that the working rate of the battery is maintained within the preset working rate range, and the state of charge of the battery is maintained within the preset numerical range.

[0087] In this application, according to the control strategy corresponding to the working environment temperature range, the process of controlling the state of charge of the battery to reach the preset state value is as follows: when the state of charge of the battery is lower than the preset state value, the battery is in a charging working state until the state of charge of the battery reaches the preset state value; when the state of charge of the battery is higher than the preset state value, based on the control strategy corresponding to the working environment temperature range, the battery is in a discharging working state until the state of charge of the battery reaches the preset state value.

[0088] Preferably, the preset state value is 55%, and the preset state value can be set according to actual requirements.

[0089] It should be noted that when the cell temperature is in the low-temperature working range, the battery is discharged based on a preset battery discharge capacity chart.

[0090] When the cell temperature is in the normal-temperature working range or the high-temperature working range, if the state of charge of the battery is greater than the preset state value and less than or equal to the second value, the battery discharges at a rate corresponding to the working environment temperature range; preferably, the second value at this time is 80%.

[0091] Preferably, the rate corresponding to the normal-temperature working range is 2C, and the rate corresponding to the high-temperature working range is 1C.

[0092] Based on the load condition of the hybrid lawn mower, when controlling the power generation power of the range extender and the charge and discharge state of the battery, so that the working rate of the battery is maintained within the preset working rate range, and the state of charge of the battery is maintained within the preset value range, the working rate range can be 0.5C; the preset value range can be 55% ± 5%; the working rate range and the preset value range can be set according to actual requirements.

[0093] Specifically, for example: when the battery output ≥ 1kW and the duration < 25s, and it does not exceed the peak discharge capacity of the battery, the load can be satisfied by the battery; when the duration ≥ 25s, the range extender adjusts the power generation power within 1s, controls the range extender to increase the power generation capacity to meet the load, and the goal is to maintain the working rate of the battery at 0.5C. When the battery recharge ≥ 1kW and the duration < 5s, and it does not exceed the peak recharge capacity of the battery, the battery can recover; when the duration ≥ 5s, the range extender adjusts the power generation power within 1s, controls the range extender to reduce the power generation capacity to meet the load, and the goal is to maintain the working rate of the battery within 0.5C.

[0094] In this application, the operating rate of the battery is controlled to be maintained within a preset operating rate range, which is a current range where the operating current of the battery is maintained at a level that will not raise the battery temperature above the warning temperature. Thus, the temperature of the battery is controlled within a stable and efficient operating range, minimizing the impact on the performance of the entire vehicle and protecting the reliability of the battery itself during use. Therefore, the temperature of the battery can be controlled within an efficient temperature range, with as little impact as possible on the performance of the entire vehicle.

[0095] In combination with the use of a range extender in this application, the rate of the battery can always be maintained within the preset operating rate range, and the battery temperature will not exceed the temperature limit value. During the use of the entire vehicle, there will be no situation of power attenuation. Moreover, the battery does not need to add a separate thermal management system, reducing costs.

[0096] In the method provided by the implementation of this application, when the hybrid lawn mower is in the working state, the core temperature and state of charge of the battery of the hybrid lawn mower are detected in real time; when the core temperature does not meet the preset warning condition, the operating environment temperature range where the battery is located is determined based on the core temperature; based on the core temperature, state of charge, and the control strategy corresponding to the operating environment temperature range, the charge and discharge state of the battery and the operating state of the range extender of the hybrid lawn mower are controlled, so that the operating rate of the battery is maintained within the preset operating rate range, and the state of charge of the battery is maintained within the preset numerical range. By controlling the preset operating rate range maintained by the operating rate of the battery and the preset numerical range maintained by the state of charge of the battery, the current output by the battery is stabilized within the current range that will not raise the battery temperature to the warning temperature, avoiding the battery temperature from rising to the warning temperature and avoiding negative impacts on the performance of the lawn mower. And this solution does not require additional cooling medium, reducing the weight and volume of the lawn mower and lowering the cost of the lawn mower.

[0097] And Figure 1 Correspondingly, the embodiment of this application also provides a control device for a hybrid lawn mower battery, and this device is used to support Figure 1 the implementation of the method shown, referring to Figure 3 , a structural schematic diagram of a control device for a hybrid lawn mower battery provided by the embodiment of this application is shown as follows:

[0098] A detection unit 301, configured to detect in real time the core temperature and state of charge of the battery of the hybrid lawn mower when the hybrid lawn mower is in the working state;

[0099] A determination unit 302, configured to determine the operating environment temperature range where the battery is located based on the core temperature when the core temperature does not meet the preset warning condition;

[0100] A control unit 303, configured to control the charge and discharge state of the battery and the operating state of the range extender of the hybrid lawn mower based on the cell temperature, the state of charge, and a control strategy corresponding to the operating environment temperature range, so as to maintain the operating rate of the battery within a preset operating rate range and maintain the state of charge of the battery within a preset numerical range.

[0101] In the device provided by the embodiment of the present application, when the hybrid lawn mower is in an operating state, the cell temperature and the state of charge of the battery of the hybrid lawn mower are detected in real time; when the cell temperature does not meet the preset warning condition, the operating environment temperature range where the battery is located is determined based on the cell temperature; based on the cell temperature, the state of charge, and a control strategy corresponding to the operating environment temperature range, the charge and discharge state of the battery and the operating state of the range extender of the hybrid lawn mower are controlled, so as to maintain the operating rate of the battery within a preset operating rate range and maintain the state of charge of the battery within a preset numerical range. By controlling the preset operating rate range maintained by the operating rate of the battery and the preset numerical range maintained by the state of charge of the battery, the current output by the battery is stabilized within a current range that will not increase the battery temperature to the warning temperature, avoiding the battery temperature from rising to the warning temperature and avoiding negative impacts on the performance of the lawn mower. And this solution does not require additional cooling media, reducing the weight and volume of the lawn mower and lowering the cost of the lawn mower.

[0102] In another device provided by the embodiment of the present application, the device further includes an alarm unit; the alarm unit is configured to control the operating state of the battery based on the cell temperature and issue a high-temperature alarm when the cell temperature meets the preset warning condition.

[0103] In another device provided by the embodiment of the present application, the process of the alarm unit of the device executing the control of the operating state of the battery based on the cell temperature includes:

[0104] When the cell temperature is within a preset first warning temperature range, limit the power of the battery for operation;

[0105] When the cell temperature is within a preset second warning temperature range, control the battery to be in a stopped working state.

[0106] In another device provided by the embodiment of the present application, the process of the control unit of the device executing the control of the charge and discharge state of the battery and the operating state of the range extender of the hybrid lawn mower based on the cell temperature, the state of charge, and a control strategy corresponding to the operating environment temperature range, so as to maintain the operating rate of the battery within a preset operating rate range and maintain the state of charge of the battery within a preset numerical range, includes:

[0107] Determine whether the enabling condition of the range extender of the hybrid lawn mower is satisfied based on the control strategy corresponding to the working environment temperature range and the state of charge;

[0108] When the enabling condition of the range extender of the hybrid lawn mower is satisfied, turn on the range extender;

[0109] According to the control strategy corresponding to the working environment temperature range, control the state of charge of the battery to reach a preset state value, and based on the load condition of the hybrid lawn mower, control the power generation power of the range extender and the charge and discharge state of the battery, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset value range.

[0110] In another device provided in the embodiments of the present application, the process in which the control unit of the device controls the state of charge of the battery to reach a preset state value according to the control strategy corresponding to the working environment temperature range includes:

[0111] When the state of charge of the battery is lower than the preset state value, charge the battery until the state of charge of the battery reaches the preset state value;

[0112] When the state of charge of the battery is higher than the preset state value, discharge the battery based on the control strategy corresponding to the working environment temperature range until the state of charge of the battery reaches the preset state value.

[0113] Although the present invention depicts the operations in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. In certain environments, multitasking and parallel processing may be advantageous.

[0114] It should be understood that the various steps recorded in the method embodiments of the present disclosure may be executed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this regard.

[0115] The embodiments of the present invention also provide a storage medium, the storage medium includes stored instructions, wherein, when the instructions run, control the device where the storage medium is located to execute the above control method for the battery of the hybrid lawn mower.

[0116] The embodiments of the present invention also provide an electronic device, the structural schematic diagram of which is as Figure 4As shown, it specifically includes a memory 401 and one or more instructions 402, where the one or more instructions 402 are stored in the memory 401 and are configured to be executed by one or more processors 403 to perform the following operations on the one or more instructions 402:

[0117] When the hybrid lawn mower is in the working state, the core temperature and state of charge of the battery of the hybrid lawn mower are detected in real time;

[0118] When the core temperature does not meet the preset warning condition, the working environment temperature range of the battery is determined based on the core temperature;

[0119] Based on the core temperature, the state of charge, and the control strategy corresponding to the working environment temperature range, the charge and discharge state of the battery and the working state of the range extender of the hybrid lawn mower are controlled, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset numerical range.

[0120] It should be noted that the information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use, and processing of relevant data need to comply with the relevant laws, regulations, and standards of the relevant regions.

[0121] The specific implementation processes and their derivative methods of the above various embodiments are all within the protection scope of the present invention.

[0122] Each embodiment in this specification is described in a progressive manner. The same or similar parts between each embodiment can be referred to each other, and the key points of each embodiment are the differences from other embodiments. In particular, for a system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The systems and system embodiments described above are only illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement without creative work.

[0123] Those skilled in the art may further realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0124] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control method for a hybrid lawn mower battery, characterized in that: include: When the hybrid lawn mower is in operation, real-time detection of the battery cell temperature and charge state of the battery of the hybrid lawn mower; When the battery cell temperature does not meet a preset alarm condition, determining the operating environment temperature range of the battery based on the battery cell temperature; Based on the battery cell temperature, the state of charge and a control strategy corresponding to the operating environment temperature range, the charging and discharging state of the battery and the operating state of the range extender of the hybrid lawn mower are controlled, so that the operating rate of the battery is maintained within a preset operating rate range, and the state of charge of the battery is maintained within a preset value range.

2. The method according to claim 1, characterized in that Also includes: When the battery cell temperature meets a preset alarm condition, the operating state of the battery is controlled based on the battery cell temperature, and a high temperature alarm is issued.

3. The method according to claim 2, characterized in that The controlling the operating state of the battery based on the battery cell temperature includes: When the temperature of the battery cell is within a preset first warning temperature range, limiting the power operation of the battery; When the battery cell temperature is within a preset second warning temperature range, the battery is controlled to be in a stop working state.

4. The method according to claim 1, characterized in that: The control strategy based on the battery cell temperature, the state of charge and the working environment temperature range controls the charge and discharge state of the battery and the working state of the range extender of the hybrid lawn mower, so that the working rate of the battery is maintained within a preset working rate range, and the state of charge of the battery is maintained within a preset value range, including: Based on the control strategy corresponding to the working environment temperature range and the charge state, determining whether a start condition of the range extender of the hybrid lawn mower is met; When a start condition of the range extender of the hybrid lawn mower is met, start the range extender; According to a control strategy corresponding to the working environment temperature range, the state of charge of the battery is controlled to reach a preset state value, and based on the load condition of the hybrid lawn mower, the power generation power of the range extender and the charge and discharge state of the battery are controlled so that the working rate of the battery is maintained in a preset working rate range, and the state of charge of the battery is maintained in a preset value range.

5. The method according to claim 4, characterized in that The controlling the state of charge of the battery to reach a preset state value according to the control strategy corresponding to the working environment temperature range includes: When the state of charge of the battery is lower than the preset state value, charging the battery until the state of charge of the battery reaches the preset state value; When the state of charge of the battery is higher than the preset state value, the battery is discharged based on a control strategy corresponding to the working environment temperature range until the state of charge of the battery reaches the preset state value.

6. A control device for a hybrid lawn mower battery, characterized in that: include: A detection unit, used for detecting the battery cell temperature and charge state of the battery of the hybrid lawn mower in real time when the hybrid lawn mower is in working state; a determination unit, configured to determine a working environment temperature range of the battery based on the battery cell temperature when the battery cell temperature does not meet a preset alarm condition; A control unit is used to control the charging and discharging state of the battery and the working state of the range extender of the hybrid lawn mower based on the battery cell temperature, the charge state and a control strategy corresponding to the working environment temperature range, so as to maintain the working rate of the battery within a preset working rate range and maintain the charge state of the battery within a preset value range.

7. The device according to claim 6, characterized in that Also includes: An alarm unit is used to control the operating state of the battery based on the battery cell temperature and issue a high temperature alarm when the battery cell temperature meets a preset alarm condition.

8. The device according to claim 7, characterized in that The alarm unit executes a process of controlling the operating state of the battery based on the battery cell temperature, including: When the temperature of the battery cell is within a preset first warning temperature range, limiting the power operation of the battery; When the battery cell temperature is within a preset second warning temperature range, the battery is controlled to be in a stop working state.

9. A storage medium, characterized in that: The storage medium includes stored instructions, wherein when the instructions are executed, the device where the storage medium is located is controlled to execute the control method for the hybrid lawn mower battery according to any one of claims 1 to 5.

10. An electronic device, characterized in that: The invention comprises a memory and one or more instructions, wherein the one or more instructions are stored in the memory and configured to be executed by one or more processors to control the hybrid lawn mower battery as claimed in any one of claims 1 to 5.

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