Battery pack switching control system, switching control method and readable storage medium

Abstract

The present invention relates to a battery pack switching control method, a readable storage medium and a control system, wherein the battery pack switching control system includes a controller, at least one battery monitoring module and a power supply, a part of the controller is connected to a part of the battery monitoring module, and another part of the battery monitoring module and another part of the controller are both connected to the power supply. The present invention can realize real-time monitoring of the battery pack status by setting a battery monitoring module, and then can judge the use status of the battery pack by different parameters such as battery voltage, battery internal resistance, battery temperature and battery deformation. The battery pack switching control method can automatically or manually switch the battery pack with the best status in real time to ensure the stable supply of DC power.

Description

Technical Field

[0001] The present invention relates to the field of battery control technology, and in particular to a switching device and a switching method for a battery pack connection mode. Background Art

[0002] Internal combustion generator sets are complete sets of mechanical equipment that convert fossil energy into electrical energy. They are composed of a power system, a control system, a silencer system, a shock absorption system, and an exhaust system. They are driven by an internal combustion engine to convert the energy generated by fuel combustion into mechanical energy and transmit it to the generator, which then converts it into electrical energy and outputs it to electrical equipment for use. Generators are widely used in data centers, mobile communications, chemical firefighting, etc.

[0003] At present, the power sources used in the common generator control systems are all DC batteries. In order to improve the reliability of the batteries, the battery packs are divided into main battery packs and backup battery packs. However, there are the following problems when switching the battery packs:

[0004] After long-term use (such as frequent starting and repair of the unit), the battery pack will be depleted or fail. When the battery pack is depleted or fails, maintenance personnel need to rush to the site and connect the charger to charge or replace it. Especially in winter, the capacity of the battery pack decreases due to the weather. If it is connected to the charger for long-term charging, it takes a long time to wait. If it is in an emergency, such as when power supply needs to be restored in a short time, maintenance personnel need to spend time and effort to purchase equipment to restore power supply, which is inefficient. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a battery pack switching control method, a readable storage medium and a control system to solve one or more problems in the prior art.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] The battery pack switching control method comprises the following steps:

[0008] Get input signal;

[0009] Configure a switching mode according to the input signal and output an output signal corresponding to the mode;

[0010] At least one battery pack is selected from the battery pack set according to the output signal and connected to the electric starting device.

[0011] The switching mode includes a selection switching mode or a parallel switching mode. The selection switching mode is used to control a single battery pack to be connected to the electric starting device, and the parallel switching mode is used to select several battery packs from a battery pack set to be connected to the electric starting device together.

[0012] Furthermore, the selection switching mode includes an automatic switching mode, and the automatic switching mode is used to automatically select a battery pack from the battery pack set to connect to the electric starting device; the automatic switching mode includes the following steps:

[0013] S1: obtaining an operation signal of the electric starting device to determine whether the electric starting device is in an operating state;

[0014] If yes, it is determined that the electric starting device is currently in an operating state and the operating signal of the current electric starting device continues to be obtained; if no, it is determined that the electric starting device is currently in a non-operating state;

[0015] S2: when the electric starting device is in a non-operating state, selecting the first battery pack according to the input priority;

[0016] S3: Detecting whether the first battery pack is in a fault state;

[0017] If yes, switch to the second battery pack; if no, output a signal and switch to the first battery pack through the switch;

[0018] S4: Detecting the auxiliary contact signal of the switching switch to determine whether to switch to the first battery pack;

[0019] If so, the first battery pack operation indication signal is output; if not, the first battery pack failure indication signal is output and the battery pack is switched to the second battery pack through the switching switch.

[0020] Furthermore, the selection switching mode includes a manual switching mode, and the manual switching mode is used to manually select any battery pack from the battery pack set to connect to the electric starting device; the manual switching mode includes the following steps:

[0021] A1: obtaining an operation signal of the electric starting device to determine whether the electric starting device is in an operating state;

[0022] If yes, it is determined that the electric starting device is currently in an operating state and the operating signal of the current electric starting device continues to be obtained; if no, it is determined that the electric starting device is currently in a non-operating state;

[0023] A2: When the electric starting device is in a non-operating state, detecting whether the first battery pack has a fault state;

[0024] If yes, switch to the second battery pack; if no, activate the first battery pack switch button to output a switch signal;

[0025] A3: Detecting the auxiliary contact signal of the first battery pack switching switch to determine whether to switch to the first battery pack;

[0026] If so, output the first battery pack working indication signal; if not, output the first battery pack fault indication signal and switch to the second battery pack through the second battery pack switching button.

[0027] Furthermore, the steps of the parallel switching mode are as follows:

[0028] B1: Press the parallel button;

[0029] B2: connecting at least two battery packs in the battery pack set in parallel and detecting an auxiliary contact signal of a parallel switch to determine whether at least two battery packs are connected in parallel;

[0030] If yes, a battery pack parallel operation indication signal is output; if no, a battery pack parallel fault indication signal is output.

[0031] Furthermore, the input priority is determined according to the order of the accumulated working time of each battery pack in the battery pack set; the input priority of the battery pack with short accumulated working time is high, and the input priority of the battery pack with long accumulated working time is low.

[0032] Furthermore, the fault state includes any one or more combinations of a battery temperature state, a battery voltage state, a battery internal resistance state, and a battery deformation state.

[0033] A readable storage medium stores a program, and when the program is executed, the battery pack switching control method is implemented.

[0034] A battery pack switching control system, the control system is used to obtain an input signal and configure a switching mode according to the input signal, and output an output signal corresponding to the mode; the control system includes a controller, at least one battery monitoring module and a power supply, a part of the controller is connected to a part of the battery monitoring module, and another part of the battery monitoring module and another part of the controller are both connected to the power supply.

[0035] Furthermore, the controller includes a first processor and a communication module connected to a first part of the first processor, the first processor has a second part connected to a first input module, and the first processor also has a third part connected to an output module.

[0036] Furthermore, the battery monitoring module includes a second processor and a second communication module connected to the second processor, the second processor is also connected to a second input module, and the second input module is respectively connected to a battery voltage sensor, a battery internal resistance sensor, a battery temperature sensor and a deformation sensor, wherein

[0037] The battery voltage sensor is used to collect the voltage value of the single battery in the battery pack;

[0038] The battery internal resistance sensor is used to collect the internal resistance value of the single battery in the battery pack;

[0039] The battery temperature sensor is used to collect the temperature value of the single battery in the battery pack;

[0040] The deformation sensor is used to collect the deformation amount of the single battery in the battery pack;

[0041] The second input module is configured to obtain the voltage value to generate a voltage signal; obtain the internal resistance value to generate an internal resistance signal; obtain the temperature value to generate a temperature signal; and obtain the deformation amount to generate a deformation signal.

[0042] Compared with the prior art, the beneficial technical effects of the present invention are as follows

[0043] (i) The present invention can realize real-time monitoring of the battery pack status by setting up a battery monitoring module, and then can judge the use status of the battery pack through different parameters such as battery voltage, battery internal resistance, battery temperature and battery deformation. The battery pack switching control method can automatically or manually switch the battery pack with the best status in real time to ensure the stable supply of DC power.

[0044] (ii) Furthermore, during on-site maintenance, several battery packs can be connected in parallel through a parallel mode, thereby temporarily increasing the battery capacity to the engine operating power supply in a short period of time, thereby coping with emergencies and avoiding losses caused by insufficient battery capacity and inability to work, so as to achieve maintenance of the engine in an emergency.

[0045] (III) Furthermore, by setting up a remote monitoring unit, on-site or remote management personnel can view battery status data and timely grasp battery status information, thereby realizing visual monitoring, thereby improving the information level of the entire control system and increasing the user's equipment management capabilities and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of battery pack switching control method, readable storage medium and battery pack switching in a control system according to an embodiment of the present invention is shown.

[0047] Figure 2 A schematic diagram of a process of switching a parallel mode in a battery pack switching control method, a readable storage medium, and a control system according to an embodiment of the present invention is shown.

[0048] Figure 3 A schematic diagram of a process for selecting a switching mode in a battery pack switching control method, a readable storage medium, and a control system according to an embodiment of the present invention is shown.

[0049] Figure 4A schematic diagram of the structure of a battery pack switching control method, a readable storage medium, and a control device in a control system according to an embodiment of the present invention is shown.

[0050] Markings in the accompanying drawings: 100, engine; 101, switching switch; 102, parallel switch; 103, first battery pack; 104, second battery pack; 2, controller; 200, first input module; 2001, first input interface; 2002, second input interface; 2003, third input interface; 2004, fourth input interface; 2005, fifth input interface; 2006, sixth input interface; 2007, seventh input interface; 2008, eighth input interface; 2009, ninth input interface; 2010, tenth input interface; 201, first processor; 202, output module; 2021, first output interface; 2022, second output interface; 2023, third output interface; 2024, fourth output interface; 2025, fifth output interface; 2026, sixth output interface; 2027, seventh output interface; 2 028, the eighth output interface; 2029, the ninth output interface; 20210, the tenth output interface; 20211, the eleventh output interface; 20212, the twelfth output interface; 20213, the thirteenth output interface; 20214, the fourteenth output interface; 20215, the fifteenth output interface; 20216, the sixteenth output interface; 203, the first communication module; 2031, the first communication interface; 2032, the second communication interface; 2033, the third communication interface; 204, the remote monitoring unit; 205, the display unit; 3, the battery monitoring module; 300, the second communication module; 3001, the fourth communication interface; 301, the second processor; 302, the second input module; 3031, the battery voltage sensor; 3032, the battery internal resistance sensor; 3033, the temperature sensor; 3034, the deformation sensor; 4, the power supply. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present invention clearer, the battery pack switching control method, readable storage medium and control system proposed in the present invention are further described in detail in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed in the present invention.

[0052] Embodiment 1:

[0053] The present invention relates to a battery pack switching control system, a switching control method and a readable storage medium. The battery pack switching system and the switching control method can realize the switching of a single battery pack in a battery pack set according to the battery pack state, thereby providing a reliable DC battery power supply for an electric starting device, thereby ensuring the safe and stable operation of the electric starting device. Figure 1 In the control system described in the first embodiment of the present invention, two battery groups in the battery group set, namely the first battery group 103 and the second battery group 104, are taken as an example for description, wherein the first battery group 103 includes a first battery group No. 1 battery and a first battery group No. 2 battery, and the second battery group 104 includes a second battery group No. 1 battery and a second battery group No. 2 battery.

[0054] The structure of the battery pack switching control system described in the first embodiment is described in detail below:

[0055] Please refer to Figure 4 The control system is used to obtain an input signal, configure a switching mode according to the input signal, and output an output signal corresponding to the switching mode, thereby realizing the switching of a single battery pack in a battery pack collection, and particularly involves the automatic switching of a single battery pack in a battery pack collection in an automatic switching mode.

[0056] Please continue to refer to Figure 4The control system includes a controller 2, at least one battery monitoring module 3 and a power supply 4, wherein in the control system described in the first embodiment, each of the battery monitoring modules 3 corresponds to a battery in a battery pack (for example, a battery monitoring module 3 corresponds to the No. 1 battery in the first battery pack 103), the output ends of each of the battery monitoring modules 3 are connected in parallel to each other and are commonly connected to the power supply 4, the output end of the controller 2 is also connected to the power supply 4, and the input end of the controller 2 is connected in parallel to the output end of each of the battery monitoring modules 3, so that real-time feedback of each battery monitoring module 3 on the status information of each battery pack in the battery pack set can be obtained.

[0057] The specific structure of the controller 2 is described in detail below:

[0058] Please refer to Figure 4 The controller 2 includes a first processor 201 and a first communication module 203 connected to a first part of the first processor 201. The first processor 201 has a second part connected to a first input module 200. The first processor 201 also has a third part connected to an output module 202. The first input module 200 has a plurality of digital input ports DE.

[0059] For further information, please continue to refer to Figure 4 The first processor 201 is used to process the status information about the battery status collected from the first communication module 203 and to confirm the working status of the battery pack, such as determining whether the battery pack is undervoltage or underpowered, whether the temperature value or internal resistance value is too high, and whether there is any deformation.

[0060] For further information, please continue to refer to Figure 4 The first processor 201 is also used to receive an input signal from the first input module 200, for example, in the selection switching mode, an automatic switching mode or a manual switching mode is selected through an external knob, and then a signal input quantity is connected to the first processor 201 through the external knob.

[0061] For further information, please continue to refer to Figure 4The first processor 201 is also used to judge and output a switching signal or an indication signal through the output module 202 according to the above-mentioned input signal and the state information of the collected battery state. The switching signal can be, for example, a second signal of a switching switch from the first battery pack to the second battery pack, or a first signal of a switching switch from the second battery pack to the first battery pack. By outputting an output quantity through the output module 202 and then controlling the corresponding switching circuit in the electrical output circuit, the switching from the first battery pack to the second battery pack can be achieved. The indication signal can also be in the form of an external indicator light, and an output quantity is output to the indicator light through the output module 202, and the indicator light is lit to let the operator know whether any one of the alarm indication, mode indication, working indication or fault indication is achieved.

[0062] For further information, please continue to refer to Figure 4 The first communication module 203 includes a first communication interface 2031, wherein the first communication interface 2031 is connected in parallel with each battery monitoring module 3 via a data line.

[0063] Preferably, please continue to refer to Figure 4 The first communication module 203 also includes a second communication interface 2032, which is used to communicate with the remote monitoring unit 204. Preferably, in the control system described in the first embodiment, the second communication interface 2032 is an Ethernet interface, which is connected to the remote monitoring unit 204 using Ethernet, so that the status information data of each battery monitored by the battery monitoring module 3 can be uploaded to the remote monitoring unit 204 in real time. On-site managers or remote managers can view the battery status information data and control the battery status information, thereby realizing visual monitoring, saving labor costs and improving management efficiency.

[0064] Preferably, please continue to refer to Figure 4 The first communication module 203 also includes a third communication interface 2033. The third communication interface 2033 preferably uses a serial peripheral interface, i.e., an SPI interface. The third communication interface 2033 can be connected to the display unit 205 to display the status information of each battery in each battery pack, and can send control instructions to the first processor 201 through an optional graphical interface, so that the first processor 201 outputs a signal, i.e., executes the corresponding instruction. Preferably, the above-mentioned display unit 205 can use an LCD display screen, which can provide real-time feedback on the status information of each battery in each battery pack, such as voltage information, internal resistance information, deformation information, and temperature information, and then display the overall status of the battery. At the same time, the LCD display screen can also send control instructions through a graphical interface.

[0065] The specific structure of the battery monitoring module 3 is described in detail below:

[0066] Please refer to Figure 4 The battery monitoring module 3 includes a second processor 301 and a second communication module 300 connected to the second processor 301. The second communication module 300 has a fourth communication interface 3001, wherein the parallel connection of each battery monitoring module 3 mentioned above is realized through the fourth communication interface 3001. The second processor 301 is also connected to the second input module 302, and the second input module 302 is respectively connected to the battery voltage sensor 3031, the battery internal resistance sensor 3032, the battery temperature sensor 3033 and the deformation sensor 3034, wherein

[0067] The battery voltage sensor 3031 is used to collect the voltage value of the single battery in the battery pack;

[0068] The battery internal resistance sensor 3032 is used to collect the internal resistance value of the single battery in the battery pack;

[0069] The battery temperature sensor 3033 is used to collect the temperature value of the single battery in the battery pack;

[0070] The deformation sensor 3034 is used to collect the deformation of the single battery in the battery pack;

[0071] The above-mentioned second input module 302 is configured to obtain a voltage value to generate a voltage signal; obtain an internal resistance value to generate an internal resistance signal; obtain a temperature value to generate a temperature signal; obtain a deformation amount to generate a deformation signal. The above-mentioned voltage signal, internal resistance signal, temperature signal, and deformation signal are all output to the second processor 301 through the second input module 302.

[0072] Furthermore, the second input module 302 has a plurality of measurement ports, of which three measurement ports are analog input circuit ports AE, which are respectively used to connect to the measurement module communication interface of the battery voltage sensor 3031, the measurement line interface for connecting to the battery internal resistance sensor 3032, and the temperature sensor interface for connecting to the battery temperature sensor 3033. Another measurement port is a digital input port DE, specifically a DI interface for connecting to the deformation sensor 3034, wherein the DI interface is specifically used to connect to the deformation sensor 3034, i.e., a switch module for detecting battery bulge.

[0073] Furthermore, each of the above-mentioned measurement ports is isolated from the internal core circuit by an optoelectronic isolator, and each battery voltage input port is connected in series with a protection resistor, ensuring the good safety of the battery inspection instrument and the high accuracy of the measurement data; the above-mentioned set of battery monitoring modules 3 can measure up to 128 batteries, and the single battery types are 6V and 12V.

[0074] Furthermore, the voltage measurement accuracy of the battery monitoring module 3 is 0.1V, the internal resistance measurement range is 0 to 200mΩ, the battery temperature measurement range is -15°C to +125°C, the operating temperature is -20 to 70°C; the storage temperature is -30°C to +80°C; and the humidity is 10% to 90% RH (without condensation).

[0075] Preferably, the battery monitoring module 3 is also provided with an indicator light, which is a red and green dual-color indicator light, and is used to indicate the operating status, i.e., the data communication status, of the battery monitoring module 3. When the battery monitoring module 3 is powered on and running, the indicator light is green, and when there is a data transmission and reception operation, the red indicator light flashes.

[0076] Accordingly, the present invention provides a battery pack switching control method, which comprises the following steps:

[0077] The input signal is obtained, specifically, the digital quantity input signal for selecting switching is obtained through the fifth input interface 2005 and transmitted to the first processor 201, and the automatic / manual switching digital quantity input signal is obtained from the first input interface 2001 and output to the first processor 201. The first processor 201 configures the switching mode, which is configured as the automatic switching mode in the selected switching mode in the control method described in the first embodiment (specifically, it can be turned on in the control system in the form of a switch and the automatic switching mode is always maintained), and the first processor 201 outputs an output quantity signal after configuration and indicates the selected switching mode indication by lighting the indicator light through the eighth output interface 2028. The automatic switching mode specifically includes the following steps:

[0078] S1: Please refer to Figure 3 First, an operation signal of an electric starting device is obtained. Preferably, the electric starting device is preferably an engine 100, and further used to determine whether the engine 100 is in a running state;

[0079] If yes, the first processor 201 receives the input quantity signal of the engine 100 operation from the tenth input interface 2010 and determines that the engine 100 is in the running state and continues to obtain the current running signal of the engine 100, and the first processor 201 outputs an output quantity signal through the sixteenth output interface 20216 and passes the power indicator light to indicate the running indication of the engine 100. If no, the first processor 201 determines that the engine 100 is in the non-running state and can enter the next step of the program.

[0080] S2: Please continue to refer to Figure 3When the engine 100 is in a non-operating state, the first processor 201 obtains a digital input signal of a priority selection, and then obtains battery status information of each battery pack through the first communication module 203, and selects the optimal battery pack according to the priority rule, and then the first processor 201 obtains a priority selection signal from the second input interface 2002.

[0081] The priority determination rules of the battery pack are as follows:

[0082] Taking the first battery pack 103 and the second battery pack 104 as an example, the first processor 201 obtains the accumulated working time of the first battery pack 103 and the second battery pack 104 from the battery pack set through the first communication module 203. The accumulated working time can be specifically counted by external software. If the first battery pack 103 is switched to, the first battery pack 103 will accumulate working time after it starts working. Similarly, the second battery pack 104 will also accumulate working time after it starts working. If the accumulated working time of the battery pack is short, the input priority is high, and if the accumulated working time of the battery pack is long, the input priority is low. In the first embodiment, the accumulated working time of the first battery pack 103 is short, please refer to Figure 4 Therefore, the first processor 201 determines that the first battery group 103 has the highest priority according to the rule.

[0083] Of course, in other embodiments of the present invention, the first processor 201 may also determine that the second battery pack 104 is the highest priority, or determine that other battery packs other than the first battery pack 103 and the second battery pack 104 are the highest priority. When the second battery pack 104 is determined to be the highest priority, the second battery pack is switched to and the process proceeds to step S5 to determine the switching of the second battery pack 104. Step S5 is described in detail below.

[0084] S3: Please continue to refer to Figure 3 , after determining that the first battery pack 103 is the highest priority, it is necessary to detect whether the first battery pack 103 has a fault state;

[0085] If yes, the second battery pack 104 is switched and the process proceeds to step S5 to determine the switching of the second battery pack 104. Step S5 is described in detail below. If no, the first processor 201 outputs an output signal through the first output interface 2021, that is, issues an instruction to switch the first battery pack 103 through the switch 101, wherein the switch 101 has a switch auxiliary contact.

[0086] Specifically, the fault state of the first battery pack 103 includes any one or more combinations of a battery temperature state, a battery voltage state, a battery internal resistance state, and a battery deformation state.

[0087] The fault status first needs to be collected by the battery monitoring module 3 connected to the first battery group 103. The specific collection rules are as follows:

[0088] The voltage value of the No. 1 battery of the first battery group and the voltage value of the No. 2 battery of the first battery group in the first battery group 103 are collected by the battery voltage sensor 3031. Specifically, in the first battery group switching control method of the present embodiment, the No. 1 battery of the first battery group and the No. 2 battery of the first battery group are both lead-acid batteries, wherein the nominal voltage of the lead-acid battery is 2.0V, which can be discharged to 1.5V and charged to 2.4V, and the high voltage alarm of the lead-acid battery is 15V and the low voltage alarm is 10V. If the battery voltage sensor 3031 detects that the No. 1 battery of the first battery group and / or the No. 2 battery of the first battery group exceeds the above-mentioned high voltage alarm value or low voltage alarm value, the above-mentioned battery voltage fault state signal is fed back to the first processor 201 through the first communication module 203, and the first processor 201 outputs an output signal through the second output interface 2022, that is, issues an instruction to switch the second battery group 104.

[0089] The internal resistance value of the No. 1 battery in the first battery group and the internal resistance value of the No. 2 battery in the first battery group 103 are collected by the battery internal resistance sensor 3032. If the internal resistance value of the No. 1 battery in the first battery group and the No. 2 battery in the first battery group 103 exceeds 110% of their own internal resistance value, the above-mentioned battery internal resistance fault state signal is fed back to the first processor 201 through the first communication module 203, and the first processor 201 outputs an output signal through the second output interface 2022, that is, issues an instruction to switch the second battery group 104.

[0090] The temperature value of the No. 1 battery in the first battery group 103 and the temperature value of the No. 2 battery in the first battery group 103 are collected by the battery temperature sensor 3033. When the temperature value of the No. 1 battery in the first battery group and the temperature value of the No. 2 battery in the first battery group exceed 50°C, the No. 1 battery in the first battery group and the No. 2 battery in the first battery group are prone to reduce the life due to overheating. At this time, the battery temperature fault state signal is fed back to the first processor 201 through the first communication module 203, and the first processor 201 outputs an output signal through the second output interface 2022, that is, sends an instruction to switch the second battery group 104.

[0091] The deformation value of the No. 1 battery of the first battery group and the deformation value of the No. 2 battery of the first battery group 103 are collected by the deformation sensor 3034, wherein the deformation value refers to whether the No. 1 battery of the first battery group and the No. 2 battery of the second battery group are swollen. Specifically, a travel switch is installed on the lead-acid battery box, and an alarm is issued when the shell is deformed to the top of the travel switch. In embodiment 1, when the deformation value of the No. 1 battery of the first battery group and the deformation value of the No. 2 battery of the first battery group in the first battery group 103 are greater than 5mm, the above-mentioned battery deformation fault state signal is fed back to the first processor 201 through the first communication module 203, and the first processor 201 outputs an output signal through the second output interface 2022, that is, issues an instruction to switch the second battery group 104.

[0092] Correspondingly, the first processor 201 can also output an output signal through the fourth output interface 2024, i.e., issue a first battery group No. 1 battery alarm instruction, and output an output signal through the fifth output interface 2025, i.e., issue a first battery group No. 2 battery alarm instruction while outputting an instruction to switch the second battery group 104. Both the first battery group No. 1 battery alarm instruction and the first battery group No. 2 battery alarm instruction can be lit up in the form of indicator lights to ensure that the operator can intuitively observe the fault status.

[0093] S4: Detect the contact signal of the switch auxiliary contact in the switching switch 101 to determine whether to switch to the first battery pack 103. If yes, output the first battery pack working indication signal; if no, output the first battery pack fault indication signal and switch to the second battery pack.

[0094] For details, please refer to Figure 3 and Figure 4 , the first processor 201 determines whether the contact of one of the switch auxiliary contacts in the switching switch 101 is normally open or normally closed, wherein when the normally open contacts are changed to normally closed contacts, it indicates that the signal is connected, and when the normally open contacts are changed to normally closed contacts, it indicates that the signal is disconnected. If it is detected that the contact of the switch auxiliary contact in the switching switch 101 is changed from normally open to normally closed contacts, the contact detection signal is obtained by the seventh input interface 2007 as the first signal of the switching switch, and after the acquisition, the contact detection signal is fed back to the first processor 201, and the first processor 201 outputs an output signal through the tenth output interface 20210, that is, sends a command and indicates the working indication of the first battery pack by lighting up the indicator light.

[0095] Please continue to refer to Figure 3 If it is detected that the auxiliary contact of the switch is normally open, the above-mentioned contact detection signal is fed back to the first processor 201 through the first communication module 203, and the first processor 201 outputs an output signal through the thirteenth output interface 20213, that is, issues an instruction and outputs a first battery pack fault indication in the form of lighting up the indicator light.

[0096] Please continue to refer to Figure 3 Before entering step S5, the first processor 201 needs to output an output signal through the second output interface 2022, that is, issue an instruction to switch the second battery pack 104 through the switching switch 101. Similarly, the position of the switching switch 101 is determined by the corresponding auxiliary contact.

[0097] For further information, please continue to refer to Figure 3 , after issuing an instruction to switch the second battery pack 104, step S5 is entered, in which the first processor 201 determines whether the contact of another switch auxiliary contact in the switch 101 is normally open or normally closed, wherein normally open to normally closed indicates that the signal is connected, and normally open indicates that the signal is disconnected. If it is detected that the contact of another switch auxiliary contact is normally open to normally closed, the above-mentioned other contact detection signal is obtained by the eighth input interface 2008 as the second signal of the switch, and after obtaining, the above-mentioned contact detection signal is fed back to the first processor 201, and the first processor 201 outputs an output signal through the eleventh output interface 20211, that is, issuing an instruction and indicating the working indication of the second battery pack by lighting up the indicator light.

[0098] If it is detected that the contact of another auxiliary contact of the switching switch 101 is normally open, the above-mentioned contact detection signal is fed back to the first processor 201, and the first processor 201 outputs an output signal through the fourteenth output interface 20214, that is, issues an instruction and outputs a second battery pack fault indication by lighting up the indicator light.

[0099] Correspondingly, the first processor 201 can also output an output signal through the sixth output interface 2026, that is, issue an alarm instruction for the No. 1 battery of the second battery group, while outputting an instruction to switch the second battery group 104, and output an output signal through the seventh output interface 2027, that is, issue an alarm instruction for the No. 2 battery of the first battery group. The alarm instruction for the No. 1 battery of the first battery group and the alarm instruction for the No. 2 battery of the first battery group can both light up in the form of indicator lights to ensure that the operator can intuitively observe the fault status.

[0100] Embodiment 2:

[0101] The difference between the second embodiment and the first embodiment is that the digital quantity input signal for selecting switching is obtained through the fifth input interface 2005 and transmitted to the first processor 201, and the automatic / manual switching digital quantity input signal is obtained from the first input interface 2001 and output to the first processor 201. The first processor 201 configures the switching mode, which is configured as a manual switching mode in the selection switching mode in the control method of the second embodiment (specifically, it can be turned on in the control system in the form of a switch and the manual switching mode is always maintained). The manual switching mode is used in the control method of the second embodiment to manually select any first battery pack 103 or second battery pack 104 from the battery pack set to connect to the electric starting device, that is, the engine 100; the manual switching mode includes the following steps:

[0102] A1: Please refer to Figure 3 , obtaining an operating signal of the electric starting device, namely the engine 100, to determine whether the engine 100 is in an operating state;

[0103] If so, the first processor 201 receives the input signal of the engine 100 from the tenth input interface 2010 and determines that the engine 100 is currently in the running state, while continuously obtaining the current running signal of the engine 100; if not, it is determined that the engine 100 is currently in the non-running state.

[0104] A2, please continue to refer to Figure 3 and Figure 4 When the engine 100 is in a non-operating state, the on-site operator manually presses the first battery pack switching button, and the first processor 201 receives the input signal of manually switching the first battery pack from the third input interface 2003, and at the same time detects whether the first battery pack 103 has a fault state. The above fault state is the same as the fault state in step S3, and the present invention will not elaborate on this.

[0105] If yes, that is, when the first battery pack 103 is detected to be in a faulty state, the second battery pack is switched and step S5 is also entered to determine the switching of the second battery pack 104. If no, that is, when the first battery pack 103 is detected to be not in a faulty state, the switch 101 is about to switch to the first battery pack 103.

[0106] A3, please continue to refer to Figure 3 , detecting a contact signal of the auxiliary contact of the switch 101 to determine whether to switch to the first battery pack 103 .

[0107] If so, the first processor 201 determines whether one of the switch auxiliary contacts in the switching switch 101 is normally open or normally closed, wherein when the normally open is changed to the normally closed state, it indicates that the signal is connected, and when the normally open state, it indicates that the signal is disconnected. If it is detected that the contact of one of the switch auxiliary contacts of the switching switch 101 is changed from normally open to normally closed, the above contact detection signal is fed back to the first processor 201 through the first communication module 203, and the first processor 201 outputs an output signal through the tenth output interface 20210, that is, sends a command and indicates the working indication of the first battery pack by lighting up the indicator light.

[0108] Please continue to refer to Figure 3 and Figure 4 If it is detected that one of the auxiliary contacts of the switch 101 is normally open, the contact detection signal is fed back to the first processor 201, and the first processor 201 outputs an output signal through the thirteenth output interface 20213, that is, issues a command and outputs a first battery pack fault indication by lighting up an indicator light.

[0109] Please continue to refer to Figure 4 When switching the second battery pack 104, the on-site operator manually presses the second battery pack switching button, and the first processor 201 receives the input signal of manually switching the second battery pack from the fourth input interface 2004, and the switch 101 is about to switch to the second battery pack 104. Then, it is detected whether the contact of another switch auxiliary contact in the switch 101 is normally open or normally closed, wherein when the normally open contacts are changed to the normally closed contacts, it indicates that the signal is connected, and when the normally open contacts are changed to the normally closed contacts, it indicates that the signal is disconnected. If it is detected that the contact of another switch auxiliary contact is changed from the normally open contacts to the normally closed contacts, the first processor 201 outputs an output signal through the eleventh output interface 20211, that is, it issues a command and indicates the working indication of the second battery pack by lighting up the indicator light.

[0110] Embodiment three:

[0111] Please refer to Figure 1 , Figure 2 and Figure 4 The third embodiment is different from the first embodiment in that a parallel switching mode is adopted. First, the parallel switching mode is configured and the first processor 201 obtains a parallel switching signal from the fifth input interface 2005. Then, the parallel button is pressed and the parallel signal is output. The parallel digital input signal is obtained from the sixth input interface 2006 and output to the first processor 201. The first processor 201 outputs a signal and outputs a battery pack parallel signal through the third output interface 2023. The parallel switching mode is used to select the first battery pack 103 and the second battery pack 104 from the battery pack set to be connected to the electric starting device, i.e., the engine 100. The parallel switching mode includes the following steps:

[0112] B1: the parallel button is pressed, and the sixth input interface 2006 obtains and feeds back to the first processor 201 , and the first processor 201 indicates the parallel switching mode indication by lighting the indicator light through the ninth output interface 2029 .

[0113] B2: The first processor 201 sends the parallel switching command to the parallel switch 102, and simultaneously obtains the parallel switch signal, i.e., the auxiliary contact signal, of the parallel switch 102, and feeds it back to the first processor 201 through the ninth input interface 2009. The first processor 201 determines whether the contact signal is normally open or normally closed from the received parallel switch auxiliary contact signal, so as to determine whether to connect the first battery pack 103 and the second battery pack 104 in parallel.

[0114] If yes, the first processor 201 outputs an instruction from the twelfth output interface 20212 to light up the indicator light to indicate a parallel operation indication. If no, the first processor 201 outputs an instruction from the fifteenth output interface 20215 to light up the indicator light to indicate an output parallel fault indication.

[0115] Correspondingly, the present invention also provides a readable storage medium on which a program is stored. When the program is executed, the above-mentioned battery pack switching control method is implemented.

[0116] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0117] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A battery pack switching control method, characterized in that The following steps are involved: Acquire an input signal received by the first input module; Configure a switching mode according to the input signal and output an output signal corresponding to the switching mode; select at least one battery pack from the battery pack set to connect to the electric starting device according to the output signal; The switching mode includes a selection switching mode or a parallel switching mode, wherein the selection switching mode is used to control a single battery pack to be connected to the electric starting device, and the parallel switching mode is used to select a plurality of battery packs from a battery pack set to be connected to the electric starting device when the electric starting device is maintained; The selection switching mode includes an automatic switching mode, and the automatic switching mode is used to automatically select a battery pack from the battery pack set to connect to the electric starting device; The selection switching mode includes a manual switching mode, and the manual switching mode is used to manually select any battery pack from the battery pack set to connect to the electric starting device; The steps of the parallel switching mode are as follows: B1: Press the parallel button; B2: connecting at least two battery packs in the battery pack set in parallel and detecting an auxiliary contact signal of a parallel switch to determine whether at least two battery packs are connected in parallel; If yes, a battery pack parallel operation indication signal is output; if no, a battery pack parallel fault indication signal is output.

2. The battery pack switching control method according to claim 1, wherein: The automatic switching mode comprises the following steps: S1: obtaining an operation signal of the electric starting device to determine whether the electric starting device is in an operating state; If yes, it is determined that the electric starting device is currently in an operating state and the operating signal of the current electric starting device continues to be obtained; if no, it is determined that the electric starting device is currently in a non-operating state; S2: when the electric starting device is in a non-operating state, selecting the first battery pack according to the input priority; S3: Detecting whether the first battery pack is in a fault state; If yes, switch to the second battery pack; if no, output a signal and switch to the first battery pack through the switch; S4: Detecting the auxiliary contact signal of the switching switch to determine whether to switch to the first battery pack; If so, the first battery pack operation indication signal is output; if not, the first battery pack failure indication signal is output and the battery pack is switched to the second battery pack through the switching switch.

3. The battery pack switching control method according to claim 1, wherein: The manual switching mode comprises the following steps: A1: obtaining an operation signal of the electric starting device to determine whether the electric starting device is in an operating state; If yes, it is determined that the electric starting device is currently in an operating state and the operating signal of the current electric starting device continues to be obtained; if no, it is determined that the electric starting device is currently in a non-operating state; A2: When the electric starting device is in a non-operating state, detecting whether the first battery pack has a fault state; If yes, switch to the second battery pack; if no, activate the first battery pack switch button to output a switch signal; A3: Detecting the auxiliary contact signal of the first battery pack switching switch to determine whether to switch to the first battery pack; If so, output the first battery pack working indication signal; if not, output the first battery pack fault indication signal and switch to the second battery pack through the second battery pack switching button.

4. The battery pack switching control method according to claim 1, wherein: The input priority is determined according to the order of the accumulated working time of each battery pack in the battery pack set; the input priority of the battery pack with a short accumulated working time is high, and the input priority of the battery pack with a long accumulated working time is low.

5. The battery pack switching control method according to any one of claims 2 or 3, characterized in that: The fault state includes any one or more combinations of a battery temperature state, a battery voltage state, a battery internal resistance state, and a battery deformation state.

6. A readable storage medium having a program stored thereon, characterized in that: When the program is executed, the battery pack switching control method according to any one of claims 1 to 5 is implemented.

7. A battery pack switching control system, implementing the battery pack switching control method according to any one of claims 1 to 5, characterized in that: The control system is used to obtain an input signal connected to the first input module, configure a switching mode according to the input signal, and output an output signal corresponding to the switching mode; The control system includes a controller, at least one battery monitoring module and a power supply, a part of the controller is connected to a part of the battery monitoring module, and another part of the battery monitoring module and another part of the controller are both connected to the power supply.

8. The battery pack switching control system according to claim 7, characterized in that: The controller includes a first processor and a first communication module connected to the first part of the first processor. The first processor has a second part connected to the first input module. The first processor also has a third part connected to the output module. The digital input signal for selecting switching or parallel switching is obtained through the fifth input interface of the first input module and transmitted to the first processor, and then the automatic or manual switching digital input signal is obtained from the first input interface of the first input module or the parallel switching digital input signal is obtained by the sixth input interface of the first input module and output to the first processor. The first processor configures the switching mode.

9. The battery pack switching control system according to claim 7, characterized in that: The battery monitoring module includes a second processor and a second communication module connected to the second processor, the second processor is also connected to a second input module, and the second input module is respectively connected to a battery voltage sensor, a battery internal resistance sensor, a battery temperature sensor and a deformation sensor, wherein The battery voltage sensor is used to collect the voltage value of the single battery in the battery pack; The battery internal resistance sensor is used to collect the internal resistance value of the single battery in the battery pack; The battery temperature sensor is used to collect the temperature value of the single battery in the battery pack; The deformation sensor is used to collect the deformation amount of the single battery in the battery pack; The second input module is configured to obtain the voltage value and generate a voltage signal; The internal resistance value is obtained to generate an internal resistance signal; the temperature value is obtained to generate a temperature signal; and the deformation amount is obtained to generate a deformation signal.

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