Electric motorcycle charging protection system and control method

Abstract

The invention belongs to the technical field of motorcycles, and particularly relates to an electric motorcycle charging protection system and a control method. The charging protection system comprises a battery compartment formed on the electric motorcycle; the main power supply module is arranged in the battery compartment; the main circuit module is connected with the main power supply module; the auxiliary power supply module is arranged outside the battery compartment; the power supply monitoring part is used for monitoring the charging condition of the main power supply module; the protection execution module comprises a plurality of elements which are respectively arranged on the main circuit module and outside the battery compartment; and the controller module is used for acquiring the power supply data detected by the power supply monitoring component, performing calculation and analysis and controlling the operation of the protection execution module.

Description

Technical Field

[0001] The present invention belongs to the technical field of motorcycles, and in particular relates to a charging protection system and a control method for an electric motorcycle. Background Art

[0002] Electric motorcycles widely use lithium iron phosphate batteries and ternary lithium-ion batteries as power batteries; in actual use, using a damaged or wrong charger to charge the battery may cause overcharging of the battery; when the charging voltage exceeds, a large amount of lithium ions will overflow from the positive electrode of the battery, and the chemical changes inside the battery will release a large amount of heat; if the charging current is greater than the maximum charging current of the battery at this time, the voltage and temperature of the battery with poor stability will rise rapidly, and in severe cases, it may cause the battery to catch fire. Summary of the invention

[0003] The purpose of the present invention is to provide a protection system and a control method that can ensure the battery charging safety of an electric motorcycle in view of the above-mentioned technical problems.

[0004] In view of this, the present invention provides an electric motorcycle charging protection system, comprising: A battery compartment is formed on the electric motorcycle; A main power module is arranged in the battery compartment; A main circuit module is connected to a main power supply module; An auxiliary power module is arranged outside the battery compartment; A power monitoring component, used to monitor the charging status of the main power module; The protection execution module includes a plurality of components, which are respectively arranged on the main circuit module and outside the battery compartment; The controller module is used to obtain the power supply data detected by the power supply monitoring component and perform calculation and analysis and control the operation of the protection execution module.

[0005] In the above technical solution, further, The main circuit module includes: A charging connector connected to the main power module via a wire; The power monitoring components include: A current detection module is provided on the main circuit module and is used to detect the current input when the main power module is charging; A voltage detection module is provided on the main circuit module and is used to detect the voltage input when the main power module is charging; A power supply temperature detector is provided in multiple pieces and evenly distributed outside the main power supply module, and is used to detect the real-time temperature of the location where the main power supply module is located when charging; The external environment detection component is arranged on the outside of the electric motorcycle and is used to detect the environment in which the main power module is charged.

[0006] In the above technical solution, further, the external environment detection component includes: An external temperature detector, used to detect the temperature of the external environment when the electric motorcycle is charging; External wind speed detector, used to detect the external air flow when the electric motorcycle is charging.

[0007] In the above technical solution, further, the protection execution module includes: A protection contactor, whose normally closed contact is arranged on the circuit connecting the charging connector and the main power module; An external gas storage tank, arranged outside the battery compartment and filled with pressurized inert gas; The protective inflation valve has one end connected to the gas outlet end of the external gas tank, and the other end connected to the battery compartment through a pipeline.

[0008] In the above technical solution, further, The power monitoring component also includes: A power detection module is used to monitor the remaining power in the power module; The protection execution module also includes: A wireless communication module is arranged outside the battery compartment and is connected to the controller module for sending messages to a host computer; The protection contactor, controller module, protection inflation valve and wireless communication module are all powered by the auxiliary power module.

[0009] A control method for an electric motorcycle charging protection system, comprising: S1. Charging data acquisition: When the main power module is charging, the temperature of the main power module is detected in real time through the power temperature detector, and the current detection module and voltage detection module are used to detect the real-time current I of the input main power module. 实 With voltage U 实 , the real-time temperature W of the external environment of the electric motorcycle is detected by the external environment detection component 外 and air circulation speed S 外 ; S2, charging data analysis, the controller module pre-stores the current threshold I 预 and voltage threshold U 预 The controller module processes the data obtained by several power temperature detectors to obtain the real-time temperature data W of the main power module when charging 实 ; and the controller module is based on the current threshold I 预 and voltage threshold U 预 , Temperature W 外 and air circulation speed S 外 Determine the temperature threshold W that the main power module should have when charging 预 ; S3, data comparison, the controller module will I 实 with I 预 Compare and convert U 实 with U 预 Compare and convert W 实 With W 预 Make a comparison; S4. The controller module controls the protection execution module to work according to the data relationship obtained after comparing the data in S3.

[0010] In the above technical solution, further, S2. Charging data analysis also includes: Charging time calculation: the controller module calculates the time T required for the main power module to be fully charged based on the remaining power of the main circuit module. 预 ; At the same time, the controller module calculates the actual time T when the main circuit module is fully charged 实 ; S3. Data comparison also includes: The controller module will T 实 With T 预 for comparison.

[0011] In the above technical solution, further, the controller module is based on the time T required for the main power module to be fully charged. 预 Divide the time period into T 预 The first 10% of the time is T 预1 , T 预 The last 90% of the time is T 预2 , beyond T 预 The time after charging is calculated as T 预3 And T 预3 ≤20 min; Among them U 预 ,I 预 and W 预 Respectively in T 预1 The corresponding threshold U is set in the time period 预1 ,I 预1 and W 预1 , in T 预2 The corresponding threshold U is set in the time period 预2 ,I 预2 and W 预2 , in T 预3 The corresponding time period has a threshold value U 预3 ,I 预3 and W 预3 , where W 预3 <W 预2 <W 预1 , I 预3 <I预2 <I 预1 , U 预3 <U 预2 <U 预1 , and I 预3 For I 预2 ×0.15, U 预,3 For U 预,2 ×0.15; Time required for the main power module to be fully charged T 预 The required charging time T is calculated by the controller module based on the remaining power of the main power module and the charging current and voltage value. 初 Multiply by 1.1.

[0012] In the above technical solution, further, the controller module is in T 预1 During the time period, W 预1 With W 实 For comparison, I 预1 with I 实 For comparison, U 预1 with U 实 Make a comparison; In T 预2 During the time period, W 预2 With W 实 For comparison, I 预2 with I 实 For comparison, U 预2 with U 实 Make a comparison; In T 预3 During the time period, W 预3 With W 实 For comparison, I 预3 with I 实 For comparison, U 预3 with U 实 Make a comparison; In T 预1 If the time period is W 实 >W 预1 ×1.15 and / or I 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05, the controller modules all control the operation of the protection execution modules; In T 预2 If the time period is W 实 >W 预2 ×1.1 and / or I 实 >I 预2 ×1.03 and / or U 实 >U 预2×1.03, the controller modules all control the operation of the protection execution modules; In T 预3 If the time period is W 实 >W 预3 and / or 实 >I 预3 and / or U 实 >U 预3 , the controller modules all control the operation of the protection execution modules.

[0013] The beneficial effects of the present invention are: 1. Through the setting of the electric motorcycle charging protection system, when the main power module is charging, the voltage and / or current and temperature changes caused by power short circuit or other abnormalities are detected in time to monitor the status of the main power module during charging, so as to better protect the electric motorcycle and the main power module; 2. Through the application of charging protection control methods, the main power module is monitored with different values ​​for different time periods, thereby improving the accuracy of monitoring the main power module and ensuring the charging safety of electric motorcycles and the safety of property and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an electrical schematic diagram of the main components of the control system of the present invention; Figure 2 It is a control principle diagram of the control method of the present invention; The markings in the figure are: 1-main power module, 2-auxiliary power module, 3-charging connector, 4-current detection module, 5-voltage detection module, 6-protection contactor, 7-protection charging valve. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0016] Embodiment 1: This embodiment provides an electric motorcycle charging protection system, including: A battery compartment is formed on the electric motorcycle; A main power module 1 is arranged in the battery compartment; A main circuit module is connected to the main power supply module 1; Auxiliary power module 2, arranged outside the battery compartment; A power supply monitoring component, used to monitor the charging status of the main power supply module 1; The protection execution module includes a plurality of components, which are respectively arranged on the main circuit module and outside the battery compartment; The controller module is used to obtain the power data detected by the power monitoring component and perform calculation and analysis, determine whether the main power module 1 is abnormal during charging based on the analysis results, and control the operation of the protection execution module.

[0017] In the present technical solution, the battery compartment is made of flame-retardant and fireproof material and is used to house the main power module 1, thereby reducing the probability of fire spreading due to battery fire; the main circuit module is used to connect the external charger and the main power module 1; the auxiliary power module 2 can be a dry battery pack, which can provide power for the protection execution module; the power monitoring component is used to monitor various data when the main power module 1 is charging; the controller module is used to ensure the smooth operation of the overall protection system, and the controller module can be powered by the main power module 1 or the auxiliary power module 2.

[0018] Embodiment 2: This embodiment provides an electric motorcycle charging protection system, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0019] The main circuit module includes: A charging connector 3 connected to the main power module 1 through a wire; The power monitoring components include: The current detection module 4 is arranged on the main circuit module and is used to detect the current input by the main power module 1 when charging; The voltage detection module 5 is arranged on the main circuit module and is used to detect the voltage inputted by the main power module 1 when charging; A power supply temperature detector is provided in plurality and evenly distributed on the outer surface of the main power supply module 1, and is used to detect the real-time temperature of the location where the main power supply module 1 is located when charging; The external environment detection component is arranged outside the electric motorcycle and is used to detect the environment of the electric motorcycle when the main power module 1 is charging.

[0020] In the present technical solution, the charging connector 3 is used to connect to an external charger; the current detection module 4 and the voltage detection module 5 in the power monitoring component are configured to monitor the current and voltage of the main power module 1 during charging in real time, so that a timely response can be made when an abnormality occurs in the main power module 1; and the power temperature detector is used to monitor the temperature of various positions on the outer surface of the main power module 1 in real time; and the external environment detection component is configured to monitor the external environmental data of the electric motorcycle during charging, and the controller module analyzes and processes the influence of the temperature of the main power module 1 during charging based on the external environmental data.

[0021] Embodiment 3: This embodiment provides an electric motorcycle charging protection system, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0022] External environment detection components include: An external temperature detector, used to detect the temperature of the external environment when the electric motorcycle is charging; External wind speed detector, used to detect the external air flow when the electric motorcycle is charging.

[0023] In the present technical solution, the external temperature detector detects the external environment temperature, and the controller module is pre-input with the ideal temperature value when the main power module 1 is normally charged in the charging bin at different external temperatures. The temperature value can be a range value or a specific value, which can be simulated by charging the main power module 1 in a constant temperature environment at different temperatures in the laboratory; the controller module corrects the ideal temperature value of the main power module under normal charging according to the external air flow conditions detected by the external wind speed detector. When the air flow condition is good, the ideal temperature value can be reduced by 1-3%, and when the air flow condition is not good, the ideal temperature value can be increased by 2-5%. The external temperature detector and the external wind speed detector are both powered by the main power module 1; and the external environment detection component will no longer obtain external data after the main power module is fully charged.

[0024] Embodiment 4: This embodiment provides an electric motorcycle charging protection system, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] The protection execution module includes: A protection contactor 6, whose normally closed contact is arranged on the circuit connecting the charging connector 3 and the main power module 1; An external gas storage tank, arranged outside the battery compartment and filled with pressurized inert gas; The protective inflation valve 7 has one end connected to the gas outlet end of the external gas storage tank, and the other end is connected to the battery compartment through a pipeline, and the protective inflation valve 7 is a solenoid valve.

[0026] In the present technical solution, the protective contactor 6 is arranged on the charging circuit of the main power module 1. When the charging data of the main power module 1 is abnormal, the charging circuit of the main power module 1 is disconnected in time, so as to protect the main power module 1 and the electric motorcycle. An inert gas, such as nitrogen, is charged into the external gas tank. When the temperature or other data of the main power module 1 in the battery compartment are abnormal and close to fire, the inert gas is charged into the battery compartment through the external gas tank and the protective charging valve 7, so as to temporarily isolate the contact between oxygen and the main power module 1, and reduce the probability of fire of the main power module 1 to a certain extent, thereby providing certain protection for the electric motorcycle and the environment in which the electric motorcycle is located.

[0027] Embodiment 5: This embodiment provides an electric motorcycle charging protection system, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] The power monitoring component also includes: A power detection module is used to monitor the remaining power in the power module; The protection execution module also includes: A wireless communication module is arranged outside the battery compartment and is connected to the controller module for communication and can be used to send messages to a host computer; The protection contactor 6 , the protection inflation valve 7 and the wireless communication module are all powered by the auxiliary power module 2 , while the temperature detection module is powered by the main power module 1 .

[0029] In this technical solution, the power detection module can be powered by the main power module 1; and the wireless communication module will send a message to the host computer in time when the main power module 1 is abnormal, so that the user can respond in time. The host computer can be a mobile communicator, such as a mobile phone, and the corresponding program is installed on the host computer to communicate with the wireless communication module. The protection contactor 6, the protection inflation valve 7 and the wireless communication module are all powered by the auxiliary power module 2, and the operation of the protection execution module can be ensured when the main power module 1 is disconnected from the external connection. During normal charging, the controller module is powered by the main power module 1. When the main power module 1 is abnormally charged, the controller module is powered by the auxiliary power module 2.

[0030] Embodiment 6: This embodiment provides a charging protection control method, including: S1, charging data acquisition, when the main power module 1 is charging, the temperature of the main power module 1 is detected in real time by the power temperature detector, and the current detection module 4 and the voltage detection module 5 are used to detect the real-time current I of the input main power module 1 in real time. 实 With voltage U 实 , the real-time temperature W of the external environment of the electric motorcycle is detected by the external environment detection component 外 and air circulation speed S 外 ; S2, charging data analysis, the controller module pre-stores the current threshold I 预 and voltage threshold U 预 The controller module processes the data obtained by several power temperature detectors to obtain the real-time temperature data W of the main power module 1 when charging 实 ; and the controller module is based on the current threshold I 预 , voltage threshold U 预 , Temperature W 外 and air circulation speed S外 Determine the temperature threshold W that the main power module 1 should have when charging 预 ; S3, data comparison, the controller module will I 实 with I 预 Compare and convert U 实 with U 预 Compare and convert W 实 With W 预 Make a comparison; S4. The controller module controls the protection execution module to work according to the data relationship obtained after comparing the data in S3.

[0031] In the present technical solution, the controller module analyzes the reasonable temperature threshold for charging the main power module 1 under the charging data and external environment data of the main power module 1, and compares the real-time current and voltage of the main power module 1 with the current threshold and the voltage threshold, so as to analyze and determine whether there is any abnormality during charging of the main power module 1. Then, according to the charging situation of the main power module 1, the controller module determines whether to control the operation of the protection execution module.

[0032] And W 实 The temperature data detected by multiple power supply temperature detectors at the same time point are processed and obtained; the power supply temperature detector is set according to the number of electrolytic cells of the battery, and a number of evenly distributed power supply temperature detectors are set outside the power supply outer wall where each electrolytic cell is located, and the number of power supply temperature detectors outside each electrolytic cell is greater than or equal to four; W 实 The temperature value outside each electrolytic cell is added together and then the average value is obtained according to the number of electrolytic cells; the temperature value outside the electrolytic cell with a power anode or cathode is the value obtained by averaging a number of data detected by a number of power temperature detectors on the outer wall of the electrolytic cell after removing a maximum value and a minimum value; the temperature value outside the electrolytic cell without a power anode or cathode is the value obtained by directly averaging a number of data detected by a number of power temperature detectors on the outer wall of the electrolytic cell.

[0033] Embodiment 7: This embodiment provides a charging protection control method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] S2. Charging data analysis also includes: Charging time calculation: the controller module calculates the time T required for the main power module 1 to be fully charged based on the remaining power of the main circuit module. 预 ; At the same time, the controller module calculates the actual time T when the main circuit module is fully charged 实 ; S3. Data comparison also includes: The controller module will T实 With T 预 for comparison.

[0035] In this technical solution, if the controller module calculates the charging time T of the main power module 1 实 Exceeded T 预 , and the main power module 1 is not fully charged, and the current I 实 , voltage U 实 and W 实 When one or more of the data are abnormal, the controller module disconnects the charging of the main power module 1 and sends a message to the upper computer. 实 , voltage U 实 and W 实 If all are normal, the main power module 1 will continue to charge and send a message to the host computer. The controller module will control T according to the number of charge and discharge times of the main power module 1. 预 Correction can be performed to obtain T more accurately. 预 data.

[0036] Embodiment 8: This embodiment provides a charging protection control method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] The controller module is based on the time T required for the main power module 1 to be fully charged. 预 Divide the time period into T 预 The first 10% of the time is T 预1 , T 预 The last 90% of the time is T 预2 , beyond T 预 The time after charging is calculated as T 预3 And T 预3 ≤20 min; Among them U 预 ,I 预 and W 预 Respectively in T 预1 The corresponding threshold U is set in the time period 预1 ,I 预1 and W 预1 , in T 预2 The corresponding threshold U is set in the time period 预2 ,I 预2 and W 预2 , in T 预3 The corresponding time period has a threshold value U 预3 ,I 预3 and W 预3 , where W 预3 <W 预2 ≤W 预1 , I预3 <I 预2 <I 预1 , U 预3 <U 预2 <U 预1 , and I 预3 For I 预2 ×0.15, U 预,3 For U 预,2 ×0.15; Time required for the main power module 1 to be fully charged T 预 is the required charging time T calculated by the controller module based on the remaining power of the main power module 1 and the charging current and voltage value 初 Multiply by 1.1.

[0038] In this technical solution, the time required for the main power module 1 to be fully charged is T 预 is the required charging time T calculated by the controller module based on the remaining power of the main power module 1 and the charging current and voltage value 初 ×1.1, thus the time T caused by various factors 预 When deviation occurs, the charging of the main power module 1 can be better monitored; since the battery may experience current and / or voltage fluctuations when it is just charged, T 预 The first 10% of the time is T 预1 By detecting this period of time, the accuracy of monitoring when the main power module 1 is just charged can be guaranteed; and T 预 The last 90% of the time is T 预2 , the battery current and voltage in this time period have stabilized, and another data monitoring is performed on the current, voltage and temperature in this time period to improve the monitoring accuracy. 预2 Rated current input when charging the main power module 1, U 预,2 The rated voltage input when charging the main power module 1, and I 预1 For I 预2 ×1.05,U 预,1 For U 预,2 ×1.05. Since T 预1 The current and voltage may fluctuate during the time period, thus affecting the temperature of the main power module. 预2 ≤W 预1 .

[0039] Embodiment 9: This embodiment provides a charging protection control method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] The controller module is in T 预1 During the time period, W 预1 With W实 For comparison, I 预1 with I 实 For comparison, U 预1 with U 实 Make a comparison; In T 预2 During the time period, W 预2 With W 实 For comparison, I 预2 with I 实 For comparison, U 预2 with U 实 Make a comparison; In T 预3 During the time period, W 预3 With W 实 For comparison, I 预3 with I 实 For comparison, U 预3 with U 实 Make a comparison; In T 预1 If the time period is W 实 >W 预1 ×1.15 and / or I 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05, then the controller modules all control the protection execution modules to run; In T 预2 If the time period is W 实 >W 预2 ×1.1 and / or I 实 >I 预2 ×1.03 and / or U 实 >U 预2 ×1.03, then the controller modules all control the protection execution modules to run; In T 预3 If the time period is W 实 >W 预3 and / or 实 >I 预3 and / or U 实 >U 预3 , then the controller modules all control the protection execution modules to run.

[0041] In this technical solution, by 预1 , T 预2 With T 预3 The real-time temperature, real-time current and real-time voltage in the T are respectively compared with the temperature threshold, current threshold and voltage threshold in the corresponding time period, so as to accurately monitor the charging status of the main power module 1. 预1The current and voltage may fluctuate during the time period, resulting in a large change in temperature. 实 >W 预1 ×1.15 and / or I 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05, the controller is running in the control protection execution module; 预2 The current and voltage are relatively stable during the time period, so 实 >W 预2 ×1.1 and / or I 实 >I 预2 ×1.03 and / or U 实 >U 预2 ×1.03, the controller modules all control the protection execution modules to run. 预3 During this time period, the current and voltage are close to zero, so if W 实 >W 预3 and / or 实 >I 预3 and / or U 实 >U 预3 , the controller modules all control the protection execution modules to run. By setting different thresholds for current, voltage and temperature in different time periods, the charging of the main power module 1 can be better monitored.

[0042] Embodiment 10: This embodiment provides a charging protection control method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] In T 预1 If the time period is 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05 and W 实 >W 预1 ×1.12 and lasts for more than 15s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer; In T 预1 If the time period is 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05 and W 实 >W 预1×1.14 and lasts for more than 10s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and at the same time controls the wireless communication module to send an alarm message to the upper computer, and controls the protection charging valve 7 to fill the battery compartment with inert gas; In T 预2 If the time period is 实 >I 预2 ×1.03 and / or U 实 >U 预2 ×1.03 and W 实 >W 预2 ×1.1 and lasts for more than 15s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer; In T 预2 If the time period is 实 >I 预2 ×1.03 and / or U 实 >U 预2 ×1.03 and W 实 >W 预2 ×1.12 and lasts for more than 10s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, controls the wireless communication module to send an alarm message to the upper computer, and controls the protection charging valve 7 to fill the battery compartment with inert gas; In T 预3 If the time period is 实 >I 预3 and / or U 实 >U 预3 And W 实 >W 预3 ×1.05 and lasts for more than 15s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer; In T 预3 If the time period is 实 >I 预3 and / or U 实 >U 预3 And W 实 >W 预3 ×1.1 and lasts for more than 10s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, controls the wireless communication module to send an alarm message to the host computer, and controls the protection charging valve 7 to fill the battery compartment with inert gas.

[0044] In this technical solution, in T预1 , T 预2 and T 预3 Two thresholds are set for real-time current and / or voltage and temperature respectively for monitoring in the segment, so as to more comprehensively and accurately monitor the charging status of the main power module 1; at the same time, in T 预1 , T 预2 and T 预3 When the temperature is too high and lasts for a certain period of time, the protective inflation valve 7 will be controlled to fill the battery compartment with inert gas, which can reduce the probability of combustion of the main power module 1 to a certain extent.

[0045] Embodiment 11: This embodiment provides a charging protection control method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0046] In T 预1 If the time period is 实 ≤I 预1 and U 实 ≤U 预1 But W 实 >W 预1 ×1.15 and lasts for more than 20s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer; if I 实 ≤I 预1 and U 实 ≤U 预1 But W 实 >W 预1 ×1.17 and lasts for more than 15s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, controls the wireless communication module to send an alarm message to the upper computer, and controls the protection charging valve 7 to fill the battery compartment with inert gas; In T 预2 If the time period is 实 ≤I 预2 and U 实 ≤U 预2 But W 实 >W 预2 ×1.1 and lasts for more than 20s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer; if I 实 ≤I 预2 and U 实 ≤U 预2 But W 实 >W 预2×1.12 and lasts for more than 15s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, controls the wireless communication module to send an alarm message to the upper computer, and controls the protection charging valve 7 to fill the battery compartment with inert gas; In T 预3 If the time period is 实 ≤I 预3 and U 实 ≤U 预3 But W 实 >W 预3 ×1.05 and lasts for more than 20s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer; if I 实 ≤I 预3 and U 实 ≤U 预3 But W 实 >W 预3 ×1.1 and lasts for more than 15s, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, controls the wireless communication module to send an alarm message to the host computer, and controls the protection charging valve 7 to fill the battery compartment with inert gas.

[0047] In this technical solution, in T 预1 , T 预2 and T 预3 During the time period, when the current and voltage data are normal but the main power module 1 is abnormally hot, the main power module 1 is disconnected from charging according to the temperature. At the same time, when the temperature reaches a certain level, the protective inflation valve 7 is controlled to fill the battery compartment with inert gas, thereby reducing the probability of combustion of the main power module 1 and the spread of fire to a certain extent.

[0048] Embodiment 12: This embodiment provides a charging protection control method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] In T 预1 If the time period is 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05 but W 实 ≤W 预1 If the condition lasts for more than 20 seconds, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer; In T 预2 If the time period is 实 >I 预2 ×1.03 and / or U 实 >U 预1 ×1.03 but W 实 ≤W 预2 When the condition lasts for more than 15 seconds, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer; In T 预3 If the time period is 实 >I 预3 and / or U 实 >U 预3 But W 实 ≤W 预3 When the condition lasts for more than 15 seconds, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and controls the wireless communication module to send an alarm message to the upper computer.

[0050] In this technical solution, in T 预1 , T 预2 and T 预3 During the time period, if the current and / or voltage fluctuates but the temperature is normal, the controller module only controls to disconnect the charging line to the main power module 1 , thereby protecting the main power module 1 .

[0051] Embodiment 13: This embodiment provides a charging protection control method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] The controller module exceeds T after the main power module 1 is fully charged 预3 The time is divided into T 足 ; Before entering T 足 During the time period, the controller module controls the protection contactor 6 in the protection execution module to disconnect the circuit between the charging connector 3 and the main power module 1, and monitors the real-time temperature data W of the main power module 1 in real time. 实 If W appears 实 ≥W 预3 When the condition lasts for more than 20 seconds, the wireless communication module is controlled to send an alarm message to the upper computer, and the protective inflation valve 7 is controlled to fill the battery compartment with inert gas.

[0053] In this technical solution, T 预330 minutes after the charging is completed, the circuit connecting the charging connector 3 and the main power module 1 is disconnected, and the real-time temperature data of the main power module 1 is monitored in real time. When the temperature is abnormal when the main power module 1 is not charging, the protective charging valve 7 is promptly controlled to fill the battery compartment with inert gas, so as to better protect the electric motorcycle and the main power module 1.

[0054] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An electric motorcycle charging protection system, characterized in that: A battery compartment is formed on the electric motorcycle; A main power module (1) is arranged in the battery compartment; A main circuit module connected to a main power supply module (1); An auxiliary power module (2) is arranged outside the battery compartment; A power monitoring component, used to monitor the charging status of the main power module (1); The protection execution module includes a plurality of components, which are respectively arranged on the main circuit module and outside the battery compartment; The controller module is used to obtain the power supply data detected by the power supply monitoring component and perform calculation and analysis and control the operation of the protection execution module.

2. The electric motorcycle charging protection system according to claim 1, characterized in that: The main circuit module comprises: A charging connector (3) connected to the main power module (1) via a wire; The power supply monitoring component comprises: A current detection module (4), arranged on the main circuit module, and used to detect the current input by the main power module (1) when charging; A voltage detection module (5) is arranged on the main circuit module and is used to detect the voltage inputted by the main power module (1) when charging; A plurality of power supply temperature detectors are provided and evenly distributed outside the main power supply module (1), and are used to detect the real-time temperature of the location where the main power supply module (1) is located when charging; The external environment detection component is arranged outside the electric motorcycle and is used to detect the environment in which the main power module (1) is located when charging.

3. An electric motorcycle charging protection system according to claim 2, characterized in that: The external environment detection component includes: An external temperature detector, used to detect the temperature of the external environment when the electric motorcycle is charging; External wind speed detector, used to detect the external air flow when the electric motorcycle is charging.

4. An electric motorcycle charging protection system according to any one of claims 1 to 3, characterized in that: The protection execution module includes: A protective contactor (6), whose normally closed contact is arranged on a circuit connecting the charging connector (3) and the main power module (1); An external gas storage tank, arranged outside the battery compartment and filled with pressurized inert gas; A protective inflation valve (7) has one end connected to the gas outlet of the external gas storage tank and the other end connected to the battery compartment through a pipeline.

5. The electric motorcycle charging protection system according to claim 4, characterized in that: The power supply monitoring component also includes: A power detection module is used to monitor the remaining power in the power module; The protection execution module also includes: A wireless communication module is arranged outside the battery compartment and is connected to the controller module for sending messages to a host computer; The protective contactor (6), the protective inflation valve (7) and the wireless communication module are all powered by the auxiliary power module (2).

6. A charging protection control method applicable to the system of claim 5, characterized in that: include: S1, charging data acquisition, when the main power module (1) is charging, the temperature of the main power module (1) is detected in real time by a power temperature detector, and the current I of the input main power module (1) is detected in real time by a current detection module (4) and a voltage detection module (5). 实 With voltage U 实 , the real-time temperature W of the external environment of the electric motorcycle is detected by the external environment detection component 外 and air circulation speed S 外 ; S2, charging data analysis, the controller module pre-stores the current threshold I 预 and voltage threshold U 预 The controller module processes the data obtained by several power temperature detectors to obtain the real-time temperature data W of the main power module (1) when charging. 实 ; and the controller module is based on the current threshold I 预 and voltage threshold U 预 , Temperature W 外 and air circulation speed S 外 Determine the temperature threshold W that the main power module (1) should have when charging 预 ; S3, data comparison, the controller module will I 实 with I 预 Compare and convert U 实 with U 预 Compare and convert W 实 With W 预 Make a comparison; S4. The controller module controls the protection execution module to work according to the data relationship obtained after comparing the data in S3.

7. The charging protection control method according to claim 6, characterized in that: The S2, charging data analysis also includes: Charging time calculation: the controller module calculates the time T required for the main power module (1) to be fully charged based on the remaining power of the main circuit module. 预 ; At the same time, the controller module calculates the actual time T when the main circuit module is fully charged 实 ; The S3 data comparison also includes: The controller module will T 实 With T 预 for comparison.

8. The charging protection control method according to claim 6 or 7, characterized in that: The controller module is based on the time T required for the main power module (1) to be fully charged. 预 Divide the time period into T 预 The first 10% of the time is T 预1 , T 预 The last 90% of the time is T 预2 , beyond T 预 The time after charging is calculated as T 预3 And T 预3 ≤20 min; Among them U 预 ,I 预 and W 预 Respectively in T 预1 The corresponding threshold U is set in the time period 预1 ,I 预1 and W 预1 , in T 预2 The corresponding threshold U is set in the time period 预2 ,I 预2 and W 预2 , in T 预3 The corresponding time period has a threshold value U 预3 ,I 预3 and W 预3 , where W 预3 <W 预2 <W 预1 , I 预3 <I 预2 <I 预1 , U 预3 <U 预2 <U 预1 , and I 预3 For I 预2 ×0.15, U 预,3 For U 预,2 ×0.15; Time required for the main power module (1) to be fully charged T 预 is the required charging time T calculated by the controller module based on the remaining power of the main power module (1) and the charging current and voltage values 初 Multiply by 1.

1.

9. The charging protection control method according to claim 8, characterized in that: The controller module is in T 预1 During the time period, W 预1 With W 实 For comparison, I 预1 with I 实 For comparison, U 预1 with U 实 Make a comparison; In T 预2 During the time period, W 预2 With W 实 For comparison, I 预2 with I 实 For comparison, U 预2 with U 实 Make a comparison; In T 预3 During the time period, W 预3 With W 实 For comparison, I 预3 with I 实 For comparison, U 预3 with U 实 Make a comparison; In T 预1 If the time period is W 实 >W 预1 ×1.15 and / or I 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05, the controller modules all control the operation of the protection execution modules; In T 预2 If the time period is W 实 >W 预2 ×1.1 and / or I 实 >I 预2 ×1.03 and / or U 实 >U 预2 ×1.03, the controller modules all control the operation of the protection execution modules; In T 预3 If the time period is W 实 >W 预3 and / or 实 >I 预3 and / or U 实 >U 预3 , the controller modules all control the operation of the protection execution modules.

10. The control method of the charging protection system according to claim 9, characterized in that: exist T 预1 If the time period is 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05 and W 实 >W 预1 ×1.12 and lasts for more than 15 seconds, the controller module controls the protection contactor (6) in the protection execution module to disconnect the circuit between the charging connector (3) and the main power module (1), and controls the wireless communication module to send an alarm message to the upper computer; In T 预1 If the time period is 实 >I 预1 ×1.05 and / or U 实 >U 预1 ×1.05 and W 实 >W 预1 ×1.14 and lasts for more than 10 seconds, the controller module controls the protection contactor (6) in the protection execution module to disconnect the circuit between the charging connector (3) and the main power module (1), controls the wireless communication module to send an alarm message to the upper computer, and controls the protection charging valve (7) to charge the battery compartment with inert gas; In T 预2 If the time period is 实 >I 预2 ×1.03 and / or U 实 >U 预2 ×1.03 and W 实 >W 预2 ×1.1 and lasts for more than 15 seconds, the controller module controls the protection contactor (6) in the protection execution module to disconnect the circuit between the charging connector (3) and the main power module (1), and controls the wireless communication module to send an alarm message to the upper computer; In T 预2 If the time period is 实 >I 预2 ×1.03 and / or U 实 >U 预2 ×1.03 and W 实 >W 预2 ×1.12 and lasts for more than 10 seconds, the controller module controls the protection contactor (6) in the protection execution module to disconnect the circuit between the charging connector (3) and the main power module (1), controls the wireless communication module to send an alarm message to the upper computer, and controls the protection charging valve (7) to charge the battery compartment with inert gas; In T 预3 If the time period is 实 >I 预3 and / or U 实 >U 预3 And W 实 >W 预3 ×1.05 and lasts for more than 15 seconds, the controller module controls the protection contactor (6) in the protection execution module to disconnect the circuit between the charging connector (3) and the main power module (1), and controls the wireless communication module to send an alarm message to the upper computer; In T 预3 If the time period is 实 >I 预3 and / or U 实 >U 预3 And W 实 >W 预3 ×1.1 and lasts for more than 10 seconds, the controller module controls the protection contactor (6) in the protection execution module to disconnect the circuit between the charging connector (3) and the main power module (1), controls the wireless communication module to send an alarm message to the upper computer, and controls the protection charging valve (7) to fill the battery compartment with inert gas.

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