Electric bicycle power regulation and control system and regulation and control method thereof

Abstract

The invention relates to the technical field of electric bicycles, and discloses an electric bicycle power regulation and control system and a regulation and control method thereof.The electric bicycle power regulation and control system comprises a battery health degree obtaining module, a threshold value setting module and a comparison response module. According to the method, the battery health degree obtained in real time is compared with the battery health degree threshold value, different responses are obtained according to the comparison result, if the battery health degree is larger than or equal to the battery health degree threshold value, it is indicated that the battery state is good at the moment, the dynamic adjustment strategy for executing current output can cope with high-power scenes such as climbing or rapid acceleration, and the reliability is high. If the health degree of the battery is smaller than the health degree threshold value of the battery, it is indicated that the state of the battery at the moment is obviously reduced, and at the moment, continuous execution of dynamic adjustment of current output may not meet a high-power scene, so that the current output of the battery executes a maximum current output mode under the condition.

Description

Technical Field

[0001] The present invention relates to the technical field of electric bicycles, and in particular to a power control system and a control method for an electric bicycle. Background Art

[0002] Electric bicycles are a green means of transportation that uses batteries as the main power source and combines pedaling functions. The advantages are low energy consumption and no tail gas emissions. However, with the rapid growth in usage, it also brings safety hazards, such as speeding and illegal driving. In the future, electric bicycles will develop in the direction of more efficient battery technology and more intelligence, accompanied by stricter regulatory measures to achieve the goal of balancing safety and convenience.

[0003] The power output of an electric bicycle depends on the current output capacity of the battery. Normally, the rated current of an electric bicycle is preset at the factory, and its maximum current output capacity is related to the factory settings and battery capacity. When facing climbing and rapid acceleration, etc., when the power needs to be increased, the motor controller will control the battery to increase the current output. However, this increased current output is not a fixed value, but is dynamically adjusted according to wind resistance, load, slope, etc. This dynamic adjustment will always exist, even if the battery health decreases, the maximum current output capacity will also decrease. Because the motor controller will make adjustments based on comprehensive operating capabilities, safety, and delaying battery aging. However, for users, when the battery health has obviously decreased, they are more concerned about whether the daily use experience can be satisfied, and they will no longer pay too much attention to battery health and aging issues. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the object of the present invention is to provide an electric bicycle power control system and a control method thereof, so as to meet the power requirements of climbing and rapid acceleration usage scenarios as much as possible when the battery health decreases.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric bicycle power control system, comprising: a battery health acquisition module, which acquires the battery health through a BMS system, the battery health represents the battery output performance, the lower the battery health, the lower the maximum current output capacity of the battery, the lower the maximum current output capacity of the battery, the lower the power that the electric vehicle can provide; a threshold setting module, which sets the battery health threshold based on comprehensive manufacturer information and battery information, under which the current output capacity of the electric vehicle battery is significantly reduced, and the battery can continue to be used reluctantly or can be replaced; a comparison response module, which uses the battery health and the battery health threshold for comparison, and obtains different responses based on the comparison results, if the battery health is greater than or equal to the battery health threshold, it indicates that the health of the electric vehicle battery is good, and the electric vehicle executes the factory-set current output dynamic adjustment strategy when facing high-power scenarios such as climbing or rapid acceleration; if the battery health is less than the battery health threshold, it indicates that the health of the electric vehicle battery has significantly decreased, in this case, when the electric vehicle faces high-power scenarios such as climbing or rapid acceleration, the motor controller controls the battery to always output the maximum output current it can reach.

[0006] In some embodiments, when the battery health is less than the battery health threshold, the battery temperature threshold of the electric vehicle is obtained. During actual driving, the battery temperature is obtained through a temperature sensor, and the battery temperature is compared with the battery temperature threshold. Different responses are obtained based on the comparison results.

[0007] In some embodiments, if the battery temperature is less than the battery temperature threshold, it indicates that the battery is in a safe state and the battery can continue to execute the maximum current output mode; if the battery temperature is greater than or equal to the battery temperature threshold, it indicates that the battery has an overheating safety hazard. In this case, the motor controller controls the battery to switch back to the dynamic adjustment mode of current output.

[0008] In some embodiments, the battery replacement threshold of the electric vehicle battery is obtained by integrating the manufacturer and battery information, the battery replacement threshold is less than the battery health threshold, the battery health is compared with the battery replacement threshold, and different responses are obtained based on the comparison result.

[0009] In some embodiments, if the battery health is greater than the battery replacement threshold, the electric vehicle battery executes the above strategy; if the battery health is less than or equal to the battery replacement threshold, the BMS system reminds the user to replace the battery of the electric vehicle.

[0010] In some embodiments, when the battery health is less than or equal to a battery replacement threshold, a battery replacement reminder deadline is set, and different power controls are performed based on the user's selection during the reminder deadline.

[0011] In some embodiments, when the battery replacement reminder is within the battery replacement reminder period, the electric vehicle battery is switched to the maximum current output mode only when facing high-power scenarios such as climbing or rapid acceleration; when the battery replacement reminder exceeds the battery replacement reminder period and the user has not replaced the new battery, it is judged that the user chooses not to replace the new battery. In this case, the electric vehicle battery is switched to the maximum current output mode for both normal flat road driving and climbing or rapid acceleration high-power scenarios.

[0012] In some embodiments, when the battery health is less than or equal to the battery replacement threshold and exceeds the battery replacement reminder period, if the user does not replace the battery with a new one, the battery replacement reminder stops, and the battery temperature protection mechanism also stops.

[0013] The present invention also provides the following technical solutions: The present invention further provides an electric bicycle power control method, comprising the following contents: comparing the battery health with a battery health threshold; if the battery health is greater than or equal to the battery health threshold, it indicates that the battery is in good condition at this time, and the system executes the current output dynamic adjustment strategy set at the factory to cope with high-power scenarios; if the battery health is less than the battery health threshold, it indicates that the battery health at this time has significantly declined, and when the system faces a high-power scenario, the battery current output is switched from the dynamic adjustment strategy to the maximum current output mode, and a temperature protection mechanism is introduced therein, and if the temperature is greater than or equal to the battery temperature threshold, the maximum current output mode is no longer executed, and is switched back to the dynamic adjustment strategy set at the factory.

[0014] The present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the above-mentioned electric bicycle power control system.

[0015] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: First, in the present invention, a battery health threshold is set, and the real-time battery health is compared with the battery health threshold, and different responses are obtained according to the comparison results. If the battery health is greater than or equal to the battery health threshold, it means that the battery state is good at this time, and the dynamic adjustment strategy of executing the current output can cope with high-power scenarios such as climbing or rapid acceleration. If the battery health is less than the battery health threshold, it means that the battery state has obviously declined at this time. At this time, continuing to execute the dynamic adjustment of the current output may not be able to meet the high-power scenario. Therefore, in this case, the current output of the battery executes the maximum current output mode. Moreover, since executing the maximum current output mode will cause overheating safety problems, a battery protection mechanism is introduced. The maximum current output mode will continue to be executed when the battery temperature is less than or equal to the battery temperature threshold. When the battery temperature is greater than the battery temperature threshold, the current output is switched to the current output dynamic adjustment mode set at the factory. In this way, safety hazards can be effectively avoided.

[0016] Secondly, in the present invention, when the battery health is less than the battery replacement threshold, it means that the battery health has further declined. At this time, the battery status can hardly meet the daily power demand. In this case, the system reminds the user to replace the battery, but does not force intervention. It only informs the user that the battery needs to be replaced. The choice is in the hands of the user. In this way, the user can know the reason for the power decline and have the right to choose.

[0017] Thirdly, in the present invention, a battery replacement reminder period is set for the battery replacement reminder. If the user still does not replace the new battery after the battery replacement reminder period has expired, it can be considered that the user chooses not to replace the new battery. At this time, in order to ensure the user's riding needs as much as possible, the battery output is switched to the maximum current output mode regardless of normal driving on a flat road or high-power scenarios such as climbing or rapid acceleration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the module structure of the present invention; Figure 2 It is a schematic diagram of the logical structure of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0021] The electric bicycle power control system provided by the present invention is as follows: Figure 1 and Figure 2 As shown, including: Battery health acquisition module: In this module, the motor control system obtains the battery health through the preset BMS. The battery health represents the output performance of the battery. For the maximum output current, the battery health decreases, and its maximum output current capacity will decrease, which will directly affect the power performance of the electric vehicle, especially in scenarios that require a large current output, such as climbing, rapid acceleration, etc. Therefore, the battery health is obtained here for subsequent reference.

[0022] Threshold setting module: In this module, the battery health threshold is set according to the battery operation status and output current capacity. A brand new battery has a health of 100% when it leaves the factory. At this time, the battery's current output capacity is the strongest. As the use time increases, the battery health will decrease. When the battery health drops to a certain level, the battery's current output capacity will decrease significantly. Therefore, the battery health at which the battery current output capacity decreases significantly is set as the battery health threshold. When the battery health reaches the battery health threshold, its current output capacity has already decreased significantly. It is a state where a new battery can be replaced or it can be used reluctantly. Users will not pay as much attention to battery maintenance during daily use as they would to a new battery.

[0023] Comparison and response module: In this module, the battery health is compared with the battery health threshold, and different motor controller execution strategies for electric vehicles climbing or accelerating rapidly are obtained based on the comparison results. The reason for the different execution strategies is that when climbing or accelerating rapidly, electric vehicles need to overcome greater resistance, so the motor needs greater torque. At this time, the motor controller will increase the current output to provide stronger power support. However, this increased current output is not fixed, nor is it always output to the maximum current, but is dynamically adjusted according to the actual slope, wind resistance, vehicle weight, etc. For example, when the slope is steeper, the current is close to the upper limit, and when the slope is gentler, the current will decrease accordingly. Therefore, when the battery health drops to a certain extent, since its maximum current output capacity is very reluctant, if the dynamic adjustment is continued, its power will be obviously insufficient. However, in the prior art, when the battery health drops, the dynamic adjustment of the current output capacity still exists. This is because when the battery health drops, the motor controller will automatically "compromise" according to the actual battery output capacity to ensure the normal operation of the electric vehicle while avoiding damage to the battery or other components. Because for the factory settings of electric vehicle batteries, not only the power of electric vehicles will be considered, but also how to delay battery aging. Therefore, the following comparative response methods are obtained: If the battery health is greater than or equal to the battery health threshold, it means that the battery health is in good condition at this time, and the battery of the electric vehicle still has a large current output capacity when in use. When climbing or accelerating rapidly, the battery's current output capacity is sufficient, and there is no problem in performing dynamic adjustment of the current output capacity. Therefore, in this case, the motor controller can execute the current output strategy at the factory. If the battery health is less than the battery health threshold, it means that the battery health has declined significantly at this time, and the maximum current output capacity of the battery when in use is already very reluctant. If the current output capacity is still adjusted dynamically, the power will be obviously insufficient. Therefore, when facing climbing or sudden acceleration, the current output dynamic adjustment is likely to result in insufficient current output and insufficient power. Therefore, in this case, the motor controller controls the battery to always output the maximum output current it can reach. This current output execution strategy can ensure that when the battery health is lower than the battery health threshold, the current output can always reach the maximum to ensure power when facing climbing or rapid acceleration, so that daily use is guaranteed. Although always reaching the maximum current output capacity will accelerate the decline of battery health, on the one hand, this control method is only used when facing climbing or rapid acceleration, etc., which requires power enhancement; on the other hand, the battery health itself is already below the battery health threshold, and users will not pay too much attention to battery maintenance. At this time, they are more concerned about how to ensure daily use experience.

[0024] In general, the power control system of electric bicycles dynamically adjusts the current output strategy by obtaining battery health data and combining it with the preset battery health threshold to balance power performance and battery life. When the battery health is higher than or equal to the battery health threshold, the system executes the factory-set dynamic adjustment strategy to ensure that the current output changes flexibly according to actual needs (such as slope, wind resistance, etc.) to provide sufficient power; when the battery health is lower than the battery health threshold, the system determines that the maximum current output capacity of the battery has dropped significantly. At this time, dynamic adjustment is abandoned and the maximum current of the battery is directly output to ensure the power demand when climbing or accelerating quickly, and improve the user experience. Although this strategy may accelerate battery aging, it is only enabled in specific high-load scenarios, and the target users pay less attention to the maintenance of aged batteries, so it pays more attention to ensuring the power performance and reliability during actual use. This design takes into account the rational use of power demand and battery status when the battery health decreases, providing users with a better daily riding experience.

[0025] On the basis of the above, when the battery health falls below the battery health threshold, in the face of scenes such as climbing and rapid acceleration that require increased power, the battery's current output capacity will abandon dynamic adjustment and always output the maximum current. Although this can ensure power, the battery temperature safety will decrease. Therefore, the battery overheat protection mechanism needs to be adjusted. Specifically: obtain the battery temperature threshold preset by the electric vehicle battery BMS system through the electric vehicle manufacturer. When the electric vehicle is driving, obtain the battery temperature through the temperature sensor preset in the BMS system, compare the battery temperature with the battery temperature threshold, and obtain different responses based on the comparison results. If the battery temperature is less than the battery temperature threshold, it indicates that the battery is in a safe state, and the battery can continue to output the maximum current at all times to ensure power. If the battery temperature is greater than or equal to the battery temperature threshold, it indicates that the battery already has a safety hazard. In this case, the motor controller controls the battery to switch back to the dynamic adjustment of the current output to reduce the burden on the battery and enable the battery temperature to be lowered. In this way, when the battery health falls below the battery health threshold, in order to ensure power output and take into account battery temperature safety in climbing and rapid acceleration scenarios, the system introduces a dynamic temperature protection mechanism. The temperature of the battery is monitored in real time through the temperature sensor preset by the BMS, and compared with the battery temperature threshold set by the manufacturer. When the battery temperature is lower than the battery temperature threshold, the system allows the battery to operate at the maximum current output to ensure that the power demand is met; when the battery temperature reaches or exceeds the battery temperature threshold, the system determines that the battery is at risk of overheating. At this time, the motor controller will switch back to the dynamic current adjustment mode to reduce the battery load to achieve heat dissipation and temperature recovery to ensure overall safety. This dual control strategy balances power demand and battery safety in extreme cases, prolongs battery life, and improves the reliability and safety performance of electric vehicles.

[0026] In the above content, the battery health has fallen below the battery health threshold, and because the current output is no longer dynamically adjusted in the face of scenes that require power such as climbing or rapid acceleration, but the maximum current is always output, the battery health will drop more significantly. When the battery health drops to a lower level, even if the maximum current is provided, the power cannot be met, and then the user needs to be reminded to replace the battery. Of course, this battery replacement is only theoretically unsatisfactory, so the system mechanism is to remind, and the user can choose to listen to the reminder or ignore it, because for the user, he may choose to use this electric car as long as it can be used, and wait until it is completely damaged before replacing a new car, and must choose to replace the battery. The reminder mechanism is as follows: the battery replacement threshold is obtained through information such as the electric vehicle manufacturer and battery specifications, and the battery replacement threshold is less than the battery health threshold. In actual use, the battery health is obtained through the BMS system, and the battery health is compared with the battery replacement threshold, and different responses are obtained according to the comparison results. When the battery health is less than or equal to the battery replacement threshold, the BMS system reminds the user that the battery needs to be replaced through the display screen of the electric vehicle. When the battery health is greater than the battery replacement threshold, the user is not reminded. According to the above content, the motor controller chooses whether to perform dynamic adjustment of the battery output current capacity. That is to say, when the battery health is lower than the battery health threshold, the battery output is changed to the maximum current mode because the climbing or rapid acceleration scene requires greater power, resulting in a more obvious decrease in battery health. When the battery health is further reduced to the battery replacement threshold, even the maximum current output cannot meet the power demand. At this time, the system monitors the battery health through the BMS, and when it is lower than or equal to the battery replacement threshold, it reminds the user on the display screen that "the battery health is too low, it is recommended to replace the battery". This reminder is only a suggestion, and the user can choose to replace or continue to use it according to the actual situation. If the battery health is higher than the battery replacement threshold, the reminder is not triggered, and the system continues to select dynamic current adjustment or maximum current output mode according to the health status. Through this reminder mechanism, the system helps users understand the battery status and provide replacement suggestions, but does not force replacement, taking into account the actual use needs of users and the flexibility of battery management.

[0027] When the battery health is less than or equal to the battery replacement threshold, the user's battery replacement reminder does not need to exist all the time. If the battery is not replaced after several consecutive reminders, it can be considered that the user chooses not to replace the battery. In this case, in order to better ensure the user's daily use, the battery current output can always reach the maximum value. Because the current output was previously switched from dynamic adjustment to always outputting the maximum only in the face of scenes that require power such as climbing or rapid acceleration. However, when the battery health drops to less than or equal to the battery replacement threshold, the power provided by the battery will be insufficient during normal driving on a flat road. Therefore, in this case, whether it is normal driving on a flat road or facing climbing or rapid acceleration, the battery's current output capacity can always reach the maximum. Specifically: set the battery replacement reminder period. When the battery replacement reminder is less than or equal to the battery replacement reminder period, it will only switch to the maximum current output mode when facing climbing or rapid acceleration scenes. This period is the time left for the user to consider whether to replace the battery. If the battery replacement reminder exceeds the battery replacement reminder period and the user still does not replace the new battery, it can be determined that the user chooses not to replace the battery. In this case, the system switches to the maximum current output mode regardless of normal flat road driving or climbing or rapid acceleration scenarios. In other words, when the battery health is less than or equal to the battery replacement threshold, the system designs a replacement reminder period to balance user decision-making and battery usage experience. During the replacement reminder period, the system reminds the user through the display screen that "the battery health is too low, it is recommended to replace the battery", and only switches to the maximum current output mode in high power demand scenarios such as climbing or rapid acceleration. In other cases, it maintains the dynamic adjustment mode to provide users with time to consider or replace the battery. If the battery replacement reminder exceeds the deadline and the user still does not replace the battery, the system determines that the user chooses to continue using the old battery. At this time, in order to ensure the daily use experience, the battery switches to the maximum current output mode at all times, regardless of flat road driving or high power scenarios, to maximize power support. This mechanism respects the user's choice while reminding the user, and optimizes the battery output strategy without replacing the battery, ensuring that the vehicle can still meet the user's power needs as much as possible when the health is extremely low, thereby improving the user's satisfaction and the practicality of electric vehicles. Moreover, at this time, the battery replacement reminder is cancelled, and the battery temperature protection is also cancelled, because the battery health is far from sufficient, its current output upper limit is greatly reduced, and the possibility of battery overheating is already very low. At this time, the battery temperature protection can be cancelled, which also reduces the additional consumption of battery power, so that the battery power can be used as much as possible for power drive. In general, when the battery health is less than or equal to the battery replacement threshold and the battery replacement reminder exceeds the set period, the system determines that the user chooses to continue using the old battery, and the battery replacement reminder is cancelled at this time. At the same time, due to the serious decline in battery health, its current output upper limit has been greatly reduced, and the possibility of battery overheating has been significantly reduced. In order to further optimize the battery usage efficiency, the system cancels the battery temperature protection mechanism.This adjustment reduces the extra power consumption of temperature control protection, allowing the limited battery power to be concentrated on power drive as much as possible, ensuring that the vehicle can always provide its maximum possible power support in scenarios such as flat road driving, climbing or rapid acceleration. By canceling reminders and temperature protection, the system maximizes the practical performance of the vehicle while protecting the user's right to choose, providing users with a more stable and efficient driving experience, even when the battery health is extremely low.

[0028] In addition, on one hand, the present invention provides an electric bicycle power control method, including the following contents: comparing the battery health with the battery health threshold, if the battery health is greater than or equal to the battery health threshold, it indicates that the battery is in good condition at this time, and the system executes the current output dynamic adjustment strategy set at the factory to cope with high-power scenarios; if the battery health is less than the battery health threshold, it indicates that the battery health at this time has significantly decreased, and when the system faces a high-power scenario, the battery current output is switched from the dynamic adjustment strategy to the maximum current output mode, and a temperature protection mechanism is introduced therein, if the temperature is greater than or equal to the battery temperature threshold, the maximum current output mode is no longer executed, and it is switched back to the dynamic adjustment strategy set at the factory. On the other hand, a computer-readable storage medium is provided, the computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the above-mentioned electric bicycle power control system.

[0029] In the embodiments disclosed in the present invention, the processes described above with reference to the flowchart can be implemented as a computer software program. The embodiments disclosed in the present invention include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part, and / or installed from a removable medium. When the computer program is executed by the central processing unit, the above functions defined in the method of the present application are executed. It should be noted that the computer-readable medium mentioned above in the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wire segments, a portable computer disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical fiber, a portable compact disk read-only memory, an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, apparatus, or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless segments, wire segments, optical cables, RF, etc., or any suitable combination of the above.

[0030] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present invention. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the boxes can also occur in a different order than the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0031] Those skilled in the art should understand that the above description is only a specific implementation mode of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. An electric bicycle power control system, characterized in that: include: The battery health acquisition module acquires the battery health through the BMS system. The battery health represents the battery output performance. The lower the battery health, the lower the maximum current output capacity of the battery. The lower the maximum current output capacity of the battery, the lower the power that the electric vehicle can provide. The threshold setting module sets the battery health threshold based on the manufacturer information and battery information. Under this battery health threshold, the current output capacity of the electric vehicle battery is significantly reduced. The battery can continue to be used or replaced. The comparison response module uses the battery health and battery health threshold for comparison, and draws different responses based on the comparison results. If the battery health is greater than or equal to the battery health threshold, it indicates that the electric vehicle battery is in good health. When the electric vehicle faces high-power scenarios such as climbing or rapid acceleration, the factory-set current output dynamic adjustment strategy is executed; If the battery health is less than the battery health threshold, it indicates that the health of the electric vehicle battery has significantly declined. In this case, when the electric vehicle faces high-power scenarios such as climbing or rapid acceleration, the motor controller controls the battery to always output the maximum output current it can achieve.

2. The electric bicycle power control system according to claim 1, characterized in that: When the battery health is less than the battery health threshold, the battery temperature threshold of the electric vehicle is obtained. During actual driving, the battery temperature is obtained through a temperature sensor, and the battery temperature is compared with the battery temperature threshold. Different responses are obtained based on the comparison results.

3. The electric bicycle power control system according to claim 2, characterized in that: If the battery temperature is lower than the battery temperature threshold, it indicates that the battery is in a safe state and the battery can continue to execute the maximum current output mode; if the battery temperature is greater than or equal to the battery temperature threshold, it indicates that the battery has an overheating safety hazard. In this case, the motor controller controls the battery to switch back to the dynamic adjustment mode of current output.

4. The electric bicycle power control system according to claim 3, characterized in that: The battery replacement threshold of the electric vehicle battery is obtained by integrating the manufacturer and battery information. The battery replacement threshold is smaller than the battery health threshold. The battery health is compared with the battery replacement threshold, and different responses are obtained based on the comparison results.

5. The electric bicycle power control system according to claim 4, characterized in that: If the battery health is greater than the battery replacement threshold, the electric vehicle battery executes the above strategy; if the battery health is less than or equal to the battery replacement threshold, the BMS system reminds the user to replace the battery of the electric vehicle.

6. The electric bicycle power control system according to claim 5, characterized in that: When the battery health is less than or equal to the battery replacement threshold, a battery replacement reminder period is set, and different power controls are performed based on the user's selection during the reminder period.

7. The electric bicycle power control system according to claim 6, characterized in that: When the battery replacement reminder is within the battery replacement reminder period, the electric vehicle battery switches to the maximum current output mode only when facing high-power scenarios such as climbing or rapid acceleration; when the battery replacement reminder exceeds the battery replacement reminder period and the user has not replaced the new battery, it is judged that the user chooses not to replace the new battery. In this case, the electric vehicle battery switches to the maximum current output mode for normal flat road driving and climbing or rapid acceleration high-power scenarios.

8. The electric bicycle power control system according to claim 7, characterized in that: When the battery health is less than or equal to the battery replacement threshold and exceeds the battery replacement reminder period, if the user does not replace the battery with a new one, the battery replacement reminder stops and the battery temperature protection mechanism also stops.

9. The electric bicycle power control method according to any one of claims 1 to 8, characterized in that: Includes the following: The battery health is compared with the battery health threshold. If the battery health is greater than or equal to the battery health threshold, it indicates that the battery is in good condition at this time, and the system executes the current output dynamic adjustment strategy set at the factory to cope with high-power scenarios; if the battery health is less than the battery health threshold, it indicates that the battery health at this time has significantly declined. When the system faces high-power scenarios, the battery current output is switched from the dynamic adjustment strategy to the maximum current output mode, and a temperature protection mechanism is introduced. If the temperature is greater than or equal to the battery temperature threshold, the maximum current output mode is no longer executed and is switched back to the dynamic adjustment strategy set at the factory.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement an electric bicycle power control system as described in any one of claims 1 to 8.

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