Shared battery car storage battery electric energy and electric quantity detection method and system

Abstract

The invention relates to the technical field of vehicle storage battery detection, and provides a shared storage battery electric energy and electric quantity detection method and system, and the method comprises the steps: obtaining a storage battery output voltage value, comparing the storage battery voltage value with a storage battery standard fully-charged output voltage value, and judging whether the storage battery is a normal fully-charged storage battery or not according to a comparison result; when it is judged that the storage battery is a normal fully-charged storage battery, the storage battery is circularly detected, the output current value and the output voltage value of the storage battery are obtained, and the total electric energy value and the total electric quantity value used after the storage battery is discharged are obtained according to the output current value and the output voltage value of the storage battery. According to the method, the electric quantity of the storage battery can be accurately measured based on complex use conditions in actual use under the conditions that useless charging and discharging times of the shared storage battery are not consumed and normal use of the storage battery is not influenced. The storage batteries with low electric quantity are eliminated in real time, so that the vehicle utilization rate is greatly improved, the dispatching cost is reduced, and the revenue is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle battery detection, and in particular to a method and system for detecting the electrical energy and power of a battery in a shared battery vehicle. Background Art

[0002] Electric vehicle battery testing methods include appearance inspection, charging test, voltage test, capacity test, internal resistance test, performance test, acceleration test, weight check, professional equipment inspection, and inspection at 4S dealerships or repair shops. Appearance inspection is based on the subjective experience of the inspector and can only serve as a supplementary means of judging the quality of the battery. Charging test methods can prove that the charger has charged the battery to a certain amount of power, but cannot indicate the actual amount of power stored in the battery because the battery's internal resistance R0, which consumes power, cannot be obtained. According to the formula, charger energy W = battery energy w + internal resistance energy w1 = charging current i * (charging voltage Ui * battery internal resistance r0) * charging time t + (i * i * battery internal resistance r0) * charging time t, where battery energy w = charging current i * (charging voltage Ui * battery internal resistance r0) * charging time t. As the battery ages, r0 increases, leading to greater errors in charging tests. Similarly, voltage detection already suffers from the issue of internal resistance R0. Internal resistance detection is flawed because electric vehicle lithium batteries contain various components such as protection circuits and current limiting circuits. Internal resistance is a dynamic value, requiring a series of test data sets. This indirect method for determining battery capacity is labor-intensive and inaccurate. Performance testing, acceleration testing, and weight checks are all indirect tests, often relying on the experience of maintenance personnel and unable to obtain valid data to verify battery capacity. Capacity testing involves removing the battery and inspecting it with specialized equipment. While this method offers the advantage of accuracy, it also has disadvantages: long test cycles, low efficiency, and a potential loss of battery life. It's typically used by manufacturers for pre-shipment sampling. Routine battery testing is time-consuming and labor-intensive. Testing at 4S dealerships or repair shops is also costly and lacks real-time performance. All of these methods take up time during normal battery life.

[0003] Newer shared e-bikes have batteries equipped with an intelligent protection board (BMS). This device can read the battery's charge and discharge current and voltage from the platform, and then use the platform to estimate the remaining battery charge. However, this calculation method is subject to significant errors. This error is caused by two factors: 1. The battery capacity is calculated based on the volt-ampere characteristics of standard new batteries, or those of semi-new batteries. Actual batteries vary from person to person, depending on factors such as brand, temperature, and frequency of use, resulting in complex calculation relationships between parameters. No matter how well calculated, it is not as accurate as the results obtained from actual testing. 2. The accumulated test data is stored on the platform, which uses complex analysis software to filter out a complete charge and discharge cycle to calculate a relatively accurate battery capacity. Even if a complete charge and discharge cycle is filtered out and some analytical data is obtained, the data is incomplete. This is because the central control system of a typical e-bike uploads data every 5 to 7 seconds when riding and every 10 minutes when parked. Data collection is intermittent, resulting in significant errors in the calculation. This detection method also has a disadvantage, which is that it is not intuitive. When maintenance personnel replace the battery, they often do not bind the battery to the vehicle. After the platform calculates the capacity of the battery, it is often not the vehicle in use. It is quite cumbersome for maintenance personnel to screen and register the battery status.

[0004] The batteries of old-style shared electric vehicles generally do not have a BMS system, so the real-time status of the battery cannot be obtained. Only the current voltage value can be obtained, and there is no way to obtain the battery capacity. Summary of the Invention

[0005] The purpose of the present invention is to solve at least one technical problem in the background technology and provide a method and system for detecting the battery energy and power of a shared electric vehicle.

[0006] To achieve the above objectives, the present invention provides a method for detecting the battery energy and power of a shared electric vehicle, comprising:

[0007] Obtain the battery output voltage value v1, compare the battery voltage value v1 with the standard fully charged battery output voltage value v0, and determine whether the battery is a normally fully charged battery based on the comparison result;

[0008] When the battery is determined to be a normally fully charged battery, a cycle test is performed on the battery to obtain the battery output current value and output voltage value, and the total electric energy value and total electric quantity value used after the battery is discharged are obtained based on the battery output current value and output voltage value.

[0009] According to one aspect of the present invention, comparing the battery voltage value v1 with the standard fully charged output voltage value v0 of the battery, and determining whether the battery is a normally fully charged battery based on the comparison result, includes:

[0010] When the battery voltage value v1 is less than the standard fully charged output voltage value v0, and it is confirmed that the battery has been charged for a sufficient time, the battery is determined to be a faulty battery;

[0011] When the battery voltage value v1 ≥ the standard fully charged output voltage value v0 of the battery, the battery is determined to be a normally fully charged battery.

[0012] According to one aspect of the present invention, obtaining a battery output current value and an output voltage value, and obtaining a total electric energy value and a total electric quantity value used after the battery is discharged based on the battery output current value and the output voltage value, includes:

[0013] Obtain the battery output current and output voltage values, and determine whether the conditions are met: when the output current value is ≤ the current required for vehicle standby, determine whether the output voltage value is ≤ the lower limit of the battery output voltage. When the output voltage value is ≤ the lower limit of the battery output voltage, stop obtaining the output voltage value, and take the output voltage value equal to the lower limit among all the obtained output voltage values, or take the output voltage value closest to the lower limit. If the conditions are met, end the cycle detection and obtain the total energy value and total power value of the battery after discharge; if not, continue the battery cycle detection.

[0014] According to one aspect of the present invention, a battery output current value and an output voltage value are obtained, and a condition is determined: when the output current value is less than or equal to the current required for vehicle standby, the output voltage value is determined to be less than or equal to the lower limit of the battery output voltage. When the output voltage value is less than or equal to the lower limit of the battery output voltage, the output voltage value is stopped from being obtained, and the output voltage value equal to the lower limit or the output voltage value closest to the lower limit is obtained from all the obtained output voltage values. If the condition is satisfied, the cycle detection is terminated, and the total electric energy value of the battery after discharge is obtained, including:

[0015] Obtain the battery output current and output voltage values according to the sampling frequency f;

[0016] Calculate the electric energy value and the power value within 1 / f seconds, and store the battery output current value, output voltage value, electric energy value and power value;

[0017] When the condition is met, the cycle detection is ended and the stored electric energy value and the electric quantity value are obtained.

[0018] According to one aspect of the present invention, the total electric energy value is:

[0019]

[0020] Where W is the total energy used in discharge, Wtotal = W / 70%, Wtotal is the total battery energy; w is the energy value obtained in each sampling cycle; u is the voltage value of each sample; i is the current value of each sample; K is the number of sampled voltage and current; N is the total number of samples; f is the sampling frequency; 1 / f represents the sampling period;

[0021] According to one aspect of the present invention, the actual discharge amount of the battery during one cycle detection process is:

[0022]

[0023] Converted to total power value: Qtotal=Q / 70%

[0024] Among them, Q is the total amount of electricity used for discharge; Qtotal is the total amount of battery power.

[0025] To achieve the above objectives, the present invention also provides a shared battery vehicle battery energy and power detection system, comprising:

[0026] The battery judgment module obtains the battery output voltage value v1, compares the battery voltage value v1 with the output voltage value v0 of the standard fully charged battery, and determines whether the battery is a normally fully charged battery based on the comparison result;

[0027] The total electric energy and power acquisition module, when determining that the battery is a normally fully charged battery, performs a cycle test on the battery to obtain the battery output current value and output voltage value, and obtains the total electric energy value and total power used by the battery after discharge based on the battery output current value and output voltage value.

[0028] To achieve the above-mentioned purpose, the present invention also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and runnable on the processor. When the computer program is executed by the processor, the above-mentioned method for detecting the battery energy and power of a shared electric vehicle is implemented.

[0029] To achieve the above-mentioned purpose, the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned method for detecting the battery energy and power of a shared electric vehicle is implemented.

[0030] According to the present invention, the method for detecting battery energy and power in shared electric vehicle battery packs accurately measures battery energy and power in real-world scenarios, without wasting unnecessary charge and discharge cycles or affecting the battery's normal use. Batteries with low energy and power levels can be eliminated in real time, significantly improving vehicle utilization, reducing dispatch costs, and increasing revenue. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A flowchart schematically illustrates a method for detecting battery energy and power in a shared electric battery vehicle according to an embodiment of the present invention;

[0032] Figure 2 This is a block diagram of the structural principle of the detection equipment of Example 1. DETAILED DESCRIPTION

[0033] The present invention will now be discussed with reference to exemplary embodiments. It should be understood that the embodiments discussed are only intended to enable those skilled in the art to better understand and implement the present invention, rather than to imply any limitation on the scope of the present invention.

[0034] As used herein, the term "including" and variations thereof are to be interpreted as open-ended terms meaning "including, but not limited to." The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment."

[0035] Figure 1 The following is a flow chart schematically showing a method for detecting battery energy and power of a shared electric battery vehicle according to an embodiment of the present invention. Figure 1 As shown, in this embodiment, the method for detecting the battery energy and power of a shared electric vehicle includes:

[0036] Obtain the battery output voltage value v1, compare the battery voltage value v1 with the standard fully charged battery output voltage value v0, and determine whether the battery is a normally fully charged battery based on the comparison result;

[0037] When the battery is determined to be a normally fully charged battery, a cycle test is performed on the battery to obtain the battery output current value and output voltage value, and the total electric energy value and total electric quantity used after the battery is discharged are obtained based on the battery output current value and output voltage value.

[0038] Furthermore, according to an embodiment of the present invention, the battery voltage value v1 is compared with the output voltage value v0 of a standard fully charged battery, and whether the battery is a normally fully charged battery is determined based on the comparison result, including:

[0039] When the battery voltage value v1 is less than the standard fully charged output voltage value v0, and it is confirmed that the battery has been charged for a sufficient time, the battery is determined to be a faulty battery;

[0040] When the battery voltage value v1 ≥ the standard fully charged output voltage value v0 of the battery, the battery is determined to be a normally fully charged battery.

[0041] Furthermore, according to an embodiment of the present invention, obtaining the output current value and output voltage value of the battery, and obtaining the total electric energy value and the total electric quantity value used after the battery is discharged according to the output current value and output voltage value of the battery, includes:

[0042] Obtain the battery output current and output voltage values, and determine whether the conditions are met: when the output current value is ≤ the current required for vehicle standby, determine whether the output voltage value is ≤ the lower limit of the battery output voltage. When the output voltage value is ≤ the lower limit of the battery output voltage, stop obtaining the output voltage value, and take the output voltage value equal to the lower limit among all the obtained output voltage values, or take the output voltage value closest to the lower limit. If the conditions are met, end the cycle detection and obtain the total energy value and total power value of the battery after discharge; if not, continue the battery cycle detection.

[0043] Furthermore, according to an embodiment of the present invention, the output current value and output voltage value of the battery are obtained, and it is determined whether the condition is met: when the output current value is ≤ the current required for the vehicle standby mode, it is determined whether the output voltage value is ≤ the lower limit value of the battery output voltage. When the output voltage value is ≤ the lower limit value of the battery output voltage, the output voltage value is stopped from being obtained, and the output voltage value equal to the lower limit value or the output voltage value closest to the lower limit value is taken from all the obtained output voltage values. If the condition is met, the cycle detection is ended, and the total electric energy value and the total electric quantity value of the battery after discharge are obtained, including:

[0044] Obtain the battery output current and output voltage values according to the sampling frequency f;

[0045] Calculate the electric energy value and the power value within 1 / f seconds, and store the battery output current value, output voltage value, electric energy value and power value;

[0046] When the condition is met, the cycle detection is ended and the stored electric energy value and electric quantity value are obtained.

[0047] The electric energy value w(K)=sampled voltage u(K)*sampled current i(K)*sampled voltage and current cycle time 1 / f.

[0048] Calculate the electrical quantity within 1 / f seconds, where the electrical quantity q(K) = the sampled current i(K) * the sampling voltage and current cycle time 1 / f.

[0049] The battery output current value, output voltage value, electric energy value and power value are stored separately as important parameters, which is convenient for studying and analyzing the performance recorded by the battery under different loads. In particular, the internal resistance value and stability are the basis for measuring battery quality.

[0050] Furthermore, according to one embodiment of the present invention, the total electric energy value is:

[0051]

[0052] Where W is the total energy used in discharge, Wtotal = W / 70%, Wtotal is the total battery energy; w is the energy value obtained in each sampling cycle; u is the voltage value of each sample; i is the current value of each sample; K is the number of sampled voltage and current; N is the total number of samples; f is the sampling frequency; 1 / f represents the sampling period;

[0053] The actual discharge amount of the battery during one cycle test is:

[0054]

[0055] Converted to total power value: Qtotal=Q / 70%

[0056] Among them, Q is the total amount of electricity used for discharge; Qtotal is the total amount of battery power.

[0057] According to the above-mentioned solution of the present invention, the battery charge detection method of the shared electric vehicle battery can accurately measure the battery energy and power in actual use based on complex usage situations, without wasting the shared battery's charge and discharge cycles and without affecting the battery's normal use. Batteries with low energy and power can be eliminated in real time, thereby greatly improving vehicle utilization, reducing scheduling costs, and increasing revenue.

[0058] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a shared battery vehicle battery energy and power detection system, comprising:

[0059] The battery judgment module obtains the battery output voltage value v1, compares the battery voltage value v1 with the output voltage value v0 of the standard fully charged battery, and determines whether the battery is a normally fully charged battery based on the comparison result;

[0060] The total electric energy and power acquisition module, when determining that the battery is a normally fully charged battery, performs a cycle test on the battery to obtain the battery output current value and output voltage value, and obtains the total electric energy value and total power used by the battery after discharge based on the battery output current value and output voltage value.

[0061] The above-mentioned shared electric vehicle battery power detection system according to the present invention can implement the above-mentioned shared electric vehicle battery power and power detection method according to the present invention. The specific process steps are as described above and will not be repeated here.

[0062] Furthermore, to achieve the above-mentioned purpose, the present invention also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and runnable on the processor. When the computer program is executed by the processor, the above-mentioned method for detecting battery energy and power of a shared electric vehicle is implemented.

[0063] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned method for detecting the battery energy and power of a shared electric vehicle is implemented.

[0064] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiment described herein is only an optimal embodiment of the present invention and is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0065] Example 1

[0066] A detection device is connected in series between the battery power socket of the shared electric vehicle and the main power cord plug of the vehicle to detect the actual electrical energy (electricity) supplied to the electric vehicle by the fully charged battery after it is used up.

[0067] In terms of options, the plug connected to the battery end must match the battery socket, and similarly the plug connected to the main power cord end of the battery car must match the main power cord socket.

[0068] In this embodiment, if Figure 2 As shown, the detection device includes: a current sensor 1, a voltage sensor 2, a central processing unit 3, a memory 4, a reset switch 5 and a display light group / display screen 6, etc.

[0069] In this embodiment, the maximum current of a general shared electric battery vehicle is about 20A to 40A. In order to ensure the reliability of the equipment, the current sensor load is selected to be 50A, leaving sufficient redundancy.

[0070] In this embodiment, a method for detecting the battery level of a shared electric battery vehicle based on the above-mentioned detection equipment includes:

[0071] 1. The dispatcher replaces the charged battery and initializes the components in the test equipment after powering on. First, the reset switch 5 is cyclically checked to see if it is reset. The dispatcher presses the reset switch of the test equipment once and holds it for 2 to 3 seconds before releasing it. The reason for holding it for 2 to 3 seconds is that the program prevents false resets caused by interference signals, etc.

[0072] 2. The detection device obtains the battery output voltage value v1 detected by the voltage sensor 2 and compares it with the standard fully charged voltage value v0. If the condition v1 ≥ v0 is not met, the central processing unit 3 sends a command to the display light group / display 6 to indicate that the battery 7 is not fully charged. At this time, if the dispatcher has confirmed that the battery 7 has been charged for a long time, it can be determined that this battery is a faulty battery;

[0073] If the condition v1≥v0 is met, the central processing unit 3 sends a command to the display light group / display screen 6 to prompt that the battery 7 is under normal detection. The central processing unit 3 obtains the battery output current value and output voltage value to determine whether the condition is met: when the output current value is ≤ the current required for the vehicle standby mode, determine whether the output voltage value is ≤ the lower limit of the battery output voltage. When the output voltage value is ≤ the lower limit of the battery output voltage, take the output voltage value equal to the lower limit or the output voltage value closest to the lower limit. If the condition is met, the cycle detection ends and the total electric energy and power value of the battery after discharge are obtained;

[0074] Furthermore, in this embodiment, the central processing unit 3 obtains the output current value and output voltage value of the battery. When it is determined that the above conditions are met, the cycle detection is terminated to obtain the total electric energy and electric quantity value of the battery after discharge, including:

[0075] The central processing unit 3 obtains the battery output current value and output voltage value according to the sampling frequency f;

[0076] Calculate the electric energy value and the electric quantity value within 1 / f seconds, and store the battery output current value, output voltage value, electric energy value and electric quantity value into the memory 4;

[0077] When the above conditions are met, the cycle detection is terminated, and the total electric energy value is calculated by the electric energy value and the electric quantity value stored in the memory 4. The details are as follows:

[0078]

[0079] Where W is the total energy used in discharge, Wtotal = W / 70%, Wtotal is the total battery energy; w is the energy value obtained in each sampling cycle; u is the voltage value of each sample; i is the current value of each sample; K is the number of sampled voltage and current; N is the total number of samples; f is the sampling frequency; 1 / f represents the sampling period;

[0080] The actual discharge amount of the battery during one cycle test is:

[0081]

[0082] Converted to total power value: Qtotal=Q / 70%

[0083] Among them, Q is the total amount of electricity used for discharge; Qtotal is the total amount of battery electricity.

[0084] 3. In this embodiment, the larger the sampling frequency f, the smaller the error between the electric energy and the electric quantity, and the smoother the line connecting the discrete values of the interval.

[0085] 4. The operator knows through the platform that the battery is about to run out. When replacing the battery of the vehicle, the actual power and power of the detection equipment can be read. If the power and power deviate too much from the required power, the battery will be deactivated to avoid reuse of the battery, resulting in low vehicle mileage, increased frequency of dispatch by dispatchers, and a poor user experience.

[0086] In this embodiment, in the above description "When the output current value is less than or equal to the vehicle standby current, determine whether the output voltage value is less than or equal to the lower limit of the battery output voltage. If the output voltage value is less than or equal to the lower limit of the battery output voltage, take the output voltage value equal to or closest to the lower limit." The reason why the CPU 3 obtains the current value less than or equal to the vehicle standby current is that the battery has an internal resistance R0, which changes dynamically. As the battery ages, R0 increases, and temperature changes also affect the battery internal resistance. According to Ohm's law: output voltage U = total battery electromotive force E - actual current i*R0. When a battery-powered vehicle is in standby (stopped), the current is minimal. Therefore, the closer the output voltage U is to the total battery electromotive force E, the better. Since the total battery electromotive force E is essentially constant under the same environment, the standby current i0 is also generally constant. The value of the E* correction parameter f(i0) is stored as the lower limit in the CPU 3 or memory 4, and serves as an important parameter for determining whether the battery has been discharged to a certain remaining charge level (30%).

[0087] Furthermore, the output voltage value is determined to be less than or equal to the lower limit of the battery output voltage. If the output voltage value is less than or equal to the lower limit of the battery output voltage, the output voltage value acquisition is stopped and the output voltage value equal to the lower limit or the output voltage value closest to the lower limit is selected from all the acquired output voltage values. This is because the acquired data is not continuous but a discrete series. When the sampling frequency is f, the interval between series is 1 / f. Assuming the lower limit of the voltage is set to 42 volts, the CPU 3 obtains a voltage value of 40.1 volts and a current value of 10A for the N-3 array, a voltage value of 42.02 volts and a current value of 0.2A for the N-2 array, a voltage value of 42.01 volts and a current value of 0.2A for the N-1 array, and a voltage value of 41.07 volts and a current value of 0.2001A for the Nth array. Then, the CPU 3 selects the values of the N-1 array as the final discharge group. Because, when the Nth array is obtained, the voltage of 41.07 volts is less than the lower limit of 42 volts, and the central processing unit 3 stops collecting data (sometimes, in order to consider interference factors, multiple collections are performed and the average value is taken). At this time, the difference between the voltage value collected for the Nth time and the lower limit is 41.07-42=-0.93 volts: the N-1th difference is 42.01-42=0.01 volts, and the absolute value of 0.01 volts is less than the absolute value of -0.93 volts. Here, the array corresponding to the N-1th time is selected for calculation and the power value is more accurate. Of course, considering the simplicity of program design, such a complicated judgment is not required, and the value of the Nth or N-1th time can be directly taken as the parameter for calculating the power. However, there will be a large error in this way, but the error is actually a negligible error compared with the overall power.

[0088] Further analysis reveals that CPU 3's voltage value for array N-3 is 40.1V, and its current value is 10A. Compared to array N-2, both current and voltage show abrupt changes. The array with a current of 10A is 0.2A higher than the current value when the vehicle is stopped. Therefore, the vehicle is currently in a powered state, with lights on or when riding. The voltage value of 40.1V cannot be used as a lower limit. The significant voltage drop is due to the presence of battery R0. In this embodiment, CPU 3 still uses these voltage and current values in its power usage calculation. When the vehicle is actually riding, the voltage is generally in the lower curve segment, while the current is in the higher curve segment. The greater the vehicle load, the lower the voltage and the higher the current. Conversely, when stopped, the voltage is generally in the higher curve segment, while the current is in the lower curve segment. During normal vehicle use, the vehicle exhibits a staggered combination of high and low voltage segments and high and low current segments.

[0089] Furthermore, in this embodiment, the detection equipment can also assist in determining the cause of vehicle failure. A maintenance function can be added to the program to determine vehicle failure by obtaining the voltage and current combination relationship of the faulty vehicle. The maintenance personnel select a group of batteries, start the vehicle, test it with no load or with a fixed load, and observe the current and voltage. If the voltage value is higher when the output current is the same, the battery performance is better. Under the same load on the vehicle, the smaller the current value, the better, indicating that the electric vehicle motor consumes less power, or the vehicle has less resistance when running, saving power; when the vehicle is underpowered, the voltage value is high and the current is low, indicating poor contact in the motor circuit and the existence of contact resistance, which is mostly due to problems with the circuit or plug, etc.

[0090] Those skilled in the art will appreciate that the modules and algorithm steps described in conjunction with the embodiments disclosed herein can be implemented using electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0091] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and equipment can refer to the corresponding processes in the aforementioned method implementation methods and will not be repeated here.

[0092] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0093] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

[0094] In addition, each functional module in the embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

[0095] If the functions are implemented as software modules and sold or used as standalone products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the energy-saving signal transmission / reception method according to various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a mobile hard drive, ROM, RAM, a magnetic disk, or an optical disk.

[0096] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0097] It should be understood that the size of the serial numbers of each step in the content of the invention and the implementation methods of the present invention does not absolutely mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the implementation methods of the present invention.

Claims

1. A method for detecting battery energy and power of a shared electric vehicle, characterized in that: include: Obtain the battery output voltage value v1, compare the battery voltage value v1 with the standard fully charged battery output voltage value v0, and determine whether the battery is a normally fully charged battery based on the comparison result; When the battery is determined to be a normally fully charged battery, a cycle test is performed on the battery to obtain the battery output current value and output voltage value, and the total electric energy value and total electric quantity value used after the battery is discharged are obtained based on the battery output current value and output voltage value.

2. The method for detecting battery energy and power of a shared electric battery vehicle according to claim 1, characterized in that: Compare the battery voltage value v1 with the standard fully charged battery output voltage value v0, and determine whether the battery is a normally fully charged battery based on the comparison result, including: When the battery voltage value v1 is less than the standard fully charged output voltage value v0, and it is confirmed that the battery has been charged for a sufficient time, the battery is determined to be a faulty battery; When the battery voltage value v1 ≥ the standard fully charged output voltage value v0 of the battery, the battery is determined to be a normally fully charged battery.

3. The method for detecting battery energy and power of a shared electric battery vehicle according to claim 1, characterized in that: Obtain the battery output current and output voltage values, and obtain the total electric energy and total electric quantity used after the battery is discharged based on the battery output current and output voltage values, including: Obtain the battery output current and output voltage values, and determine whether the conditions are met: when the output current value is ≤ the current required for vehicle standby, determine whether the output voltage value is ≤ the lower limit of the battery output voltage. When the output voltage value is ≤ the lower limit of the battery output voltage, stop obtaining the output voltage value, and take the output voltage value equal to the lower limit among all the obtained output voltage values, or take the output voltage value closest to the lower limit. If the conditions are met, end the cycle detection and obtain the total energy value and total power value of the battery after discharge; if not, continue the battery cycle detection.

4. The method for detecting battery energy and power of a shared electric battery vehicle according to claim 3, characterized in that: Obtain the battery output current and output voltage values and determine whether the conditions are met: When the output current value is ≤ the current required for vehicle standby, determine whether the output voltage value is ≤ the lower limit of the battery output voltage. When the output voltage value is ≤ the lower limit of the battery output voltage, stop obtaining the output voltage value and take the output voltage value equal to the lower limit among all the obtained output voltage values or the output voltage value closest to the lower limit. If the conditions are met, end the cycle detection and obtain the total energy value and total power value of the battery after discharge, including: Obtain the battery output current and output voltage values according to the sampling frequency f; Calculate the electric energy value and the power value within 1 / f seconds, and store the battery output current value, output voltage value, electric energy value and power value; When the condition is met, the cycle detection is ended and the stored electric energy value and the electric quantity value are obtained.

5. The method for detecting battery energy and power of a shared electric battery vehicle according to claim 1, characterized in that: The total electrical energy value is: Where W is the total electrical energy used for discharge, Wtotal = W / 70%, where Wtotal is the total battery energy; w is the electrical energy value obtained in each sampling cycle; u is the voltage value of each sample; i is the current value of each sample; K is the number of voltage and current sampled; N is the total number of samples taken; f is the sampling frequency; and 1 / f represents the sampling period.

6. The method for detecting battery energy and power of a shared electric battery vehicle according to any one of claims 1 to 5, characterized in that: The actual discharge amount of the battery during one cycle test is: Converted to total power value: Q 总 =Q / 70% Among them, Q is the total amount of electricity used for discharge; Qtotal is the total amount of battery power.

7. The battery energy and power detection system of the shared battery car is characterized by: include: The battery judgment module obtains the battery output voltage value v1, compares the battery voltage value v1 with the output voltage value v0 of the standard fully charged battery, and determines whether the battery is a normally fully charged battery based on the comparison result; The total electric energy and power acquisition module, when determining that the battery is a normally fully charged battery, performs a cycle test on the battery to obtain the battery output current value and output voltage value, and obtains the total electric energy value and total power used by the battery after discharge based on the battery output current value and output voltage value.

8. An electronic device, characterized in that It includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the shared electric battery vehicle battery energy and power detection method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the method for detecting the battery energy and power of a shared electric battery vehicle as described in any one of claims 1 to 6 is implemented.

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