Method, device and system for testing charging function of storage battery

Abstract

The embodiment of the invention relates to the technical field of storage battery charging, and discloses a method, device and system for testing the charging function of a storage battery, and the method comprises the steps: obtaining the battery parameters of the storage battery after the communication with an electric quantity sensor is established; when it is determined that the storage battery is in a test state according to the battery parameters, a power battery is triggered and controlled through an electric quantity sensor to charge the storage battery, a first charging parameter is obtained, and the first charging parameter is a parameter detected in the charging process of the storage battery; and determining that the charging function of the storage battery is normal according to the first charging parameter. By applying the technical scheme of the invention, the condition that the electric quantity sensor cannot detect the electric quantity of the storage battery can be avoided, the technical problem of test deviation caused by communication interruption can also be avoided to reduce the influence of abnormal signals, and the function test can be carried out in combination with the charging parameters of the charging processing to reduce the deviation of the test result, so that the test efficiency is improved. And the test precision is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of vehicle batteries, and in particular to a method, device and system for testing a battery charging function. Background Art

[0002] As the application demand for smart cars continues to increase, various controllers can be added to realize applications with different functions. However, controllers with certain functions will be awakened by abnormal signals. At this time, the high-voltage power supply of the controller is not connected, and the vehicle's battery is required to supply power, which causes the battery to become a feeding state. In order to ensure that the battery can be used normally, the vehicle controller needs to be triggered to recharge the battery.

[0003] In order to ensure that the battery can be stably recharged after leaving the factory, the recharging function needs to be tested. The commonly used recharging function test method is: wake up the power sensor in each test cycle to detect the battery power, and perform recharging processing when the battery changes to the feeding state based on the power. When both the wake-up operation and the recharging processing can be completed in the test cycle, it is determined that the battery recharging function is normal.

[0004] However, the currently commonly used battery recharging function test method has the following technical problems: the recharging operation within the test cycle may be a process performed by the controller due to being awakened by an abnormal signal. Therefore, the recharging function is normal only by determining whether the process is completed within the test cycle. The test result deviates from the actual result, the test accuracy is low, and it is difficult to meet existing testing needs. Summary of the invention

[0005] In view of the above problems, the embodiments of the present invention provide a method, device and system for testing the battery charging function, which are used to solve the technical problems of errors in test results and low test accuracy in the prior art.

[0006] According to one aspect of an embodiment of the present invention, a method for testing a battery charging function is provided, the method comprising:

[0007] After establishing communication with the power sensor, the battery parameters of the battery are obtained;

[0008] When it is determined according to the battery parameter that the storage battery is in a test state, the power battery is controlled to replenish the battery with power through the power sensor and obtain a first replenishment parameter, wherein the first replenishment parameter is a parameter detected by the storage battery during the replenishment process;

[0009] It is determined according to the first power replenishment parameter that the power replenishment function of the battery is normal.

[0010] In one embodiment, the present invention can first determine the communication status of the power sensor and obtain the battery parameters of the battery. If it is determined that the battery is in a test state according to the battery parameters of the battery, the power sensor triggers the vehicle controller to control the power battery to perform power replenishment processing on the battery and obtain the power replenishment parameters, and determines whether the power replenishment function is normal according to the size of the power replenishment parameters. This can avoid the situation where the power sensor cannot detect the battery power, and can also avoid the technical problem of test deviation due to communication interruption, so as to reduce the impact of abnormal signals, and can also combine the power replenishment parameters of the power replenishment processing to perform functional testing, so as to reduce the deviation of the test results and improve the accuracy of the test.

[0011] According to another aspect of an embodiment of the present invention, a test device for a battery charging function is provided, comprising:

[0012] A battery parameter acquisition module is used to acquire battery parameters of the battery after establishing communication with the power sensor;

[0013] A first parameter acquisition module is used to determine that the battery is in a test state according to the battery parameter, trigger the power battery to charge the battery through the power sensor and obtain a first charging parameter, wherein the first charging parameter is a parameter detected by the battery during the charging process;

[0014] The power replenishment function testing module is used to determine whether the power replenishment function of the battery is normal according to the first power replenishment parameter.

[0015] According to another aspect of an embodiment of the present invention, a test system for a battery charging function is provided, comprising: the system comprises: a fuse box, a battery, a power battery, a multimeter, a discharge device, a power sensor, a CAN communication device and a host computer, the host computer being applicable to the test method for the battery charging function as described above;

[0016] The storage battery is respectively connected to the fuse box, the power battery, the multimeter, the discharge device and the power sensor, the power sensor is connected to the CAN communication device, and the CAN communication device is connected to the host computer.

[0017] According to another aspect of an embodiment of the present invention, there is provided a test device for a battery charging function, comprising: a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other through the communication bus;

[0018] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute the steps of the method for testing the battery charging function provided by the above embodiment.

[0019] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, wherein the storage medium stores at least one executable instruction, and the executable instruction enables a test device / apparatus for a battery charging function to perform the following operations:

[0020] After establishing communication with the power sensor, the battery parameters of the battery are obtained;

[0021] When it is determined according to the battery parameter that the storage battery is in a test state, the power battery is controlled to replenish the battery with power through the power sensor and obtain a first replenishment parameter, wherein the first replenishment parameter is a parameter detected by the storage battery during the replenishment process;

[0022] It is determined according to the first power replenishment parameter that the power replenishment function of the battery is normal.

[0023] After establishing communication with the power sensor, the embodiment of the present invention obtains the battery parameters of the battery. If it is determined that the battery is in a test state according to the battery parameters of the battery, the body controller is triggered by the power sensor to send a power replenishment request to the vehicle controller, so that the vehicle controller controls the power battery to perform power replenishment on the battery, and obtains the power replenishment parameters of the battery during the power replenishment process, and determines whether the power replenishment function is normal according to the size of the power replenishment parameters. This can not only avoid the situation where the power sensor cannot detect the battery power, but also avoid the technical problem of test deviation due to communication interruption, so as to reduce the influence of abnormal signals, and can also perform functional testing in combination with the power replenishment parameters of the power replenishment process, so as to reduce the deviation of the test results and improve the accuracy of the test.

[0024] The above description is only an overview of the technical solution of the embodiment of the present invention. In order to more clearly understand the technical means of the embodiment of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0026] Figure 1 A schematic flow chart of a first embodiment of a method for testing a battery charging function provided by the present invention is shown;

[0027] Figure 2 A schematic flow chart of a second embodiment of a method for testing a battery charging function provided by the present invention is shown;

[0028] Figure 3A schematic flow chart of a third embodiment of a method for testing a battery charging function provided by the present invention is shown;

[0029] Figure 4 A schematic flow chart of a fourth embodiment of a method for testing a battery charging function provided by the present invention is shown;

[0030] Figure 5 A schematic structural diagram of a first embodiment of a test device for a battery charging function provided by the present invention is shown;

[0031] Figure 6 A schematic diagram showing the structure of an embodiment of a test system for a battery charging function provided by the present invention;

[0032] Figure 7 A structural schematic diagram of an embodiment of a test device for a battery charging function provided by the present invention is shown. DETAILED DESCRIPTION

[0033] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0034] Figure 1 The flowchart of the first embodiment of a method for testing the battery charging function provided by the present invention is shown. The method is executed by a test device for the battery charging function. The test device for the battery charging function can be a vehicle controller or a host computer. Figure 1 As shown, the method comprises the following steps:

[0035] Step 110: After establishing communication with the power sensor, obtain battery parameters of the battery.

[0036] In order to ensure that the power battery can stably recharge the battery after the vehicle leaves the factory, the recharging function of the vehicle battery needs to be tested before leaving the factory. The commonly used recharging function test method is: wake up the power sensor in each test cycle to detect the battery power, and perform recharging when the battery changes to the test state based on the power. During the recharging process, when the battery wake-up operation and recharging process can be completed within the test cycle, it is determined that the recharging function of the battery is normal.

[0037] When the battery is in the test state and is recharged, the process is generally that the power sensor transmits the detected power of the battery to the body controller. When the detected power is lower than a certain value, the battery is determined to be in the test state; at this time, the body controller sends a recharge request to the vehicle controller, and the vehicle controller controls the power battery to recharge the battery.

[0038] However, in actual operation, the power sensor may be unable to communicate with the battery and the controller due to abnormal signals, making it impossible for the power sensor to detect the battery power; at the same time, the controller may be awakened by abnormal signals to perform power replenishment processing during the test cycle. Therefore, the existing technology only determines whether the power replenishment function is normal by determining whether the processing is completed during the test cycle. The test results have a large deviation from the actual results, the test accuracy is low, and it is difficult to meet the existing test needs.

[0039] In order to solve the above problem, in one embodiment, the present invention can first establish communication with the power sensor, and when it is determined that the communication status of the power sensor is normal, then detect the battery parameters of the battery, and then determine whether the battery is in a test state based on the battery parameters of the battery to improve the accuracy of the test.

[0040] Among them, the normal communication status can be a state in which the power sensor and the vehicle body controller are communicating normally, and at the same time, the vehicle body controller and the vehicle whole vehicle controller are communicating with each other.

[0041] After determining that the current communication status of the power sensor is normal, the battery parameters of the battery are detected, and whether the battery is in the test state is determined based on the battery parameters of the battery. When in the test state, the power sensor triggers the body controller to send a charging request to the vehicle controller in the above manner, so that the vehicle controller controls the power battery to charge the battery, and performs subsequent charging function tests during the charging process to determine whether the charging function is normal. This can not only avoid the situation where the power sensor cannot detect the battery power, but also avoid technical problems such as test deviations due to communication interruptions, thereby reducing the impact of abnormal signals, and can perform functional tests in line with the actual process of charging processing to reduce the deviation of test results and improve test accuracy.

[0042] Step 120: When it is determined according to the battery parameters that the battery is in a test state, the power sensor is used to trigger the control of the power battery to recharge the battery and obtain a first recharge parameter, wherein the first recharge parameter is a parameter detected by the battery during the recharge process.

[0043] When the communication status of the power sensor is normal, the battery parameters can be obtained, and whether the battery is in the test state can be determined according to the size of the battery parameters. If it is determined that the battery is in the test state, it means that the battery needs to be recharged. The power sensor can be tested whether it triggers the body controller to send a recharge request to the vehicle controller, so that the vehicle controller controls the power battery to recharge the battery.

[0044] If the vehicle controller controls the power battery to recharge the storage battery, it is determined that the recharging function is normal; conversely, if the vehicle controller does not control the power battery to recharge the storage battery, it is determined that the recharging function is abnormal.

[0045] In order to further improve the accuracy of the test, during the process of the power battery charging the storage battery, a first charging parameter can also be obtained, which is a parameter detected by the storage battery during the charging process. Subsequently, whether the charging function of the storage battery is normal can be determined based on the size of the first charging parameter.

[0046] In an optional embodiment, if the battery parameter detected after the charging operation is triggered is still lower than a certain value, or if it is determined that the battery power has not changed and is still in the testing state, it can also be determined that the charging function is abnormal.

[0047] In the case of normal communication, whether the power replenishment function is normal can be determined by judging whether the power replenishment operation is performed and the size of the parameters detected during the power replenishment process, thereby improving the accuracy of the power replenishment function test and reducing the test error.

[0048] In one embodiment, the battery parameters obtained may be one or more, or one or more.

[0049] In a specific operation, the battery parameters include a battery voltage value and a remaining power value, wherein the battery voltage value may be a real-time voltage of the battery, and the remaining power value may be a real-time power of the battery.

[0050] In order to accurately determine whether the battery is in a test state, so as to determine whether the requirements for the power replenishment process are met, as an example, determining that the battery is in a test state according to the battery parameters may include the following steps:

[0051] Step 1201: If the battery voltage value is less than a first voltage threshold and the remaining power value is less than a first power threshold, it is determined that the battery is in a test state.

[0052] Step 1202: If the battery voltage value is greater than a first voltage threshold, or the remaining power value is greater than a first power threshold, it is determined that the battery is in a non-test state.

[0053] In one embodiment, when the battery voltage value is less than a first voltage threshold (eg, 12V) and the remaining power value is less than a first power threshold (50%), it can be determined that the battery is in a test state.

[0054] On the contrary, if the battery voltage value is greater than the first voltage threshold (eg, 12V) or the remaining power value is greater than the first power threshold (50%), it can be determined that the battery is in a non-test state.

[0055] In one operation mode, in order to protect the battery, a cockpit fuse box may be provided, and the cockpit fuse box is provided with a VCU fuse. After the VCU fuse of the cockpit fuse box is pulled out, the battery may start to discharge.

[0056] In order to quickly put the battery into a test state during the test to meet the requirements of the power replenishment process and perform the power replenishment process, the VCU fuse of the battery can be pulled out at a preset interval to allow the battery to discharge to the discharge device.

[0057] When discharging, the battery parameters of the battery are obtained again. When the battery voltage value is less than the first voltage threshold (for example, 12V) and the remaining power value is less than the first power threshold (50%), it is determined that the battery is in the test state, and the VCU fuse can be inserted into the battery to stop the battery discharge device from discharging, and then the power sensor triggers the vehicle controller to send a charging request to the vehicle controller, and the vehicle controller controls the power battery to charge the battery. When charging, the gear position of the battery can be switched to OFF first, and the power battery can be controlled to charge the battery.

[0058] In order to quickly consume the power of the battery, the battery can be connected to a discharge device or an electrical device, and then the discharge device is used to discharge the battery to consume the power of the battery.

[0059] In this process, the voltage of the battery can be measured with a multimeter to obtain the battery voltage value. At the same time, the battery power can be measured with a power sensor to obtain the remaining power value (SOC).

[0060] During the process of charging the storage battery, a first charging parameter of the storage battery may be obtained, where the first charging parameter is a parameter detected when the power battery charges the storage battery.

[0061] Step 130: Determine whether the battery charging function is normal according to the first battery charging parameter.

[0062] In one embodiment, the first power replenishment parameter may include values ​​such as a battery charge change, a voltage change, and a current change.

[0063] Whether the charging function of the battery is normal can be determined according to the size of the first charging parameter during the charging process of the battery.

[0064] In an optional embodiment, the first power compensation parameter includes: a first voltage value and a first power value.

[0065] The first voltage value is a voltage change value after the power battery replenishes the storage battery according to a preset time, and the first power value is a power change value after the power battery replenishes the storage battery according to a preset time.

[0066] Specifically, when the battery voltage value is less than the first voltage threshold (e.g., 12V) and the remaining power value is less than the first power threshold (50%), the VCU fuse is inserted into the battery to stop the battery discharge device from discharging. At this time, the battery gear can be switched to OFF, so that the power sensor will trigger the vehicle controller to send a charging request to the vehicle controller, and the vehicle controller will then control the power battery to charge the battery.

[0067] During this process, you can wait for a preset time (for example, 2 hours). After waiting for the preset time, you can collect the voltage change value and the power change value of the battery to obtain a first voltage value and a first power value. Subsequently, you can determine whether the battery's power replenishment function is normal based on the size of the first voltage value and the first power value.

[0068] Specifically, a multimeter may be used to collect the voltage value of the battery in a test state and the voltage value of the battery after being charged for a preset period of time, and the difference between the two voltage values ​​may be calculated to obtain the first voltage value.

[0069] Similarly, the remaining power value of the battery in the test state can be collected by the power sensor, and then the remaining power value of the battery after the preset charging time is collected, and the difference between the two power values ​​is calculated to obtain the first power value.

[0070] Wherein, as an example, determining that the battery charging function is normal according to the first battery charging parameter may include the following steps:

[0071] Step 210: If the first voltage value is greater than 0 and the first power value is greater than 0, it is determined that the charging function of the battery is normal.

[0072] Step 220: If the first voltage value is less than 0 or the first power value is less than 0, it is determined that the charging function of the battery is abnormal.

[0073] In specific operation, if the first voltage value is greater than 0 and the first power value is greater than 0, it means that after the battery is in the test state, the power battery recharges the battery within a preset time period, so that the battery voltage and remaining power are increased. It can be determined that the battery's recharging function is normal.

[0074] On the contrary, if the first voltage value is less than 0, or the first power value is less than 0, it means that after the battery is in the test state, the battery voltage and the remaining power do not increase during the process of the power battery recharging the battery within the preset time, and the battery recharging fails. At this time, it can be determined that the battery recharging function is abnormal.

[0075] By collecting the voltage change value and power change value of the battery during the preset charging time, it is possible to accurately determine whether the battery's charging function is normal, thereby improving the accuracy of the test.

[0076] In another optional embodiment, the first power compensation parameter includes: a second voltage value and a second power value.

[0077] The second voltage change value is a voltage change value detected after the power battery performs several failed operations of charging the storage battery, and the second power value is a power change value detected after the power battery performs several failed operations of charging the storage battery.

[0078] The operation of the power replenishment failure may include the following steps:

[0079] Repeatedly control the power battery to recharge the storage battery, and pull out the VCU fuse of the battery when starting to recharge, so that the battery discharges to the discharge device to make the battery recharging fail.

[0080] According to the analysis in the previous article, in order to protect the battery, a cockpit fuse box can be provided. The cockpit fuse box is provided with a VCU fuse. After the VCU fuse of the cockpit fuse box is pulled out, the battery can start discharging. After the VCU fuse of the cockpit fuse box is inserted, the battery can stop discharging.

[0081] According to this principle, the power sensor can trigger the vehicle controller to send a recharging request to the vehicle controller, so that the vehicle controller controls the power battery to start recharging the battery and then pulls out the VCU fuse, causing the battery to start discharging, causing the recharging to fail.

[0082] At this time, the VCU fuse can be plugged back in, and the battery can stop discharging. After stopping discharging, since the last recharging failed, the battery is still in the test state, and the power sensor can be used again to control the power battery to start recharging the battery. Repeat the operation several times (for example, 5 times), wait for a preset time (for example, 2 hours), and then obtain the voltage change value and power change value of the battery to obtain the second voltage value and the second power value.

[0083] In specific operations, a multimeter can also be used to collect the voltage value of the battery in the test state, as well as the voltage value of the battery after repeated failed charging operations and waiting for a preset time, and the difference between the two voltage values ​​is calculated to obtain a second voltage value.

[0084] Similarly, the remaining power value of the battery in the test state can be collected through the power sensor, and then the remaining power value of the battery after repeated failed charging operations and waiting for a preset time can be collected, and the difference between the two power values ​​can be calculated to obtain a second power value.

[0085] Wherein, as an example, determining that the battery charging function is normal according to the first battery charging parameter may include the following steps:

[0086] Step 310: If the second voltage value is greater than 0 and the second power value is greater than 0, it is determined that the charging function of the battery is normal.

[0087] Step 320: If the second voltage value is less than 0 or the second power value is less than 0, it is determined that the charging function of the battery is abnormal.

[0088] In specific operations, if the second voltage value is greater than 0 and the second power value is greater than 0, it means that after the battery is in a test state and the power replenishment operation has been repeated and failed, the power battery is triggered again to replenish the battery, and the battery voltage and remaining power still increase. It can be determined that the battery's power replenishment function is normal.

[0089] On the contrary, if the second voltage value is less than 0, or the second power value is less than 0, it means that after the battery is in the test state and the power replenishment operation has failed many times, the power battery is triggered again to replenish the battery, and the battery voltage and remaining power have not increased, and the battery replenishment has failed. At this time, it can be determined that the battery's power replenishment function is abnormal.

[0090] During recharging, the recharging operation is controlled to fail multiple times, and after repeated recharging failures, the voltage change value and power change value of the battery are collected within a preset time period. This can accurately determine whether the recharging function of the battery is normal, thereby improving the accuracy of the test.

[0091] In yet another optional embodiment, the first power compensation parameter includes: a third voltage value and a third power value.

[0092] Among them, the third voltage value is the real-time voltage value when the power battery replenishes the battery; the third power value is the real-time power value when the power battery replenishes the battery.

[0093] Specifically, when the battery voltage value is less than the first voltage threshold (e.g., 12V) and the remaining power value is less than the first power threshold (50%), the VCU fuse is inserted into the battery to stop the battery discharge device from discharging. At this time, the battery gear can be switched to OFF, so that the power sensor will trigger the vehicle controller to send a charging request to the vehicle controller, and the vehicle controller will then control the power battery to charge the battery.

[0094] During this process, a multimeter can be used to collect the real-time voltage of the battery during the charging process to obtain a third voltage value.

[0095] Similarly, the real-time power of the battery during the charging process can be collected through the power sensor to obtain the third power value.

[0096] Wherein, as an example, determining that the battery charging function is normal according to the first battery charging parameter may include the following steps:

[0097] Step 410: After the third voltage value is greater than the second voltage threshold and the third power value is greater than the second power threshold, the power battery stops replenishing the storage battery, and it is determined that the charging function of the storage battery is normal.

[0098] Step 420: After the third voltage value is greater than the second voltage threshold and the third power value is greater than the second power threshold, the power battery continues to replenish power to the storage battery, and it is determined that the power replenishment function of the storage battery is abnormal.

[0099] Specifically, after the third voltage value is greater than the second voltage threshold (eg, 13.5V) and the third power value is greater than the second power threshold (eg, 90%), the power battery stops replenishing the storage battery, and it is determined that the replenishment function of the storage battery is normal.

[0100] If after a period of replenishment, the third voltage value is less than the second voltage threshold (for example, 13.5V), or the third power value is less than the second power threshold (for example, 90%), or, after the third voltage value is greater than the second voltage threshold (for example, 13.5V) and the third power value is greater than the second power threshold (for example, 90%), the power battery continues to replenish the storage battery, then it is determined that the battery's replenishment function is abnormal.

[0101] If you can exit the charging process in time after charging, it means that the charging operation is normal, and you can confirm that the charging function of the battery is normal.

[0102] After confirming that the battery's charging function is normal, it is necessary to perform a pressure test on the battery to determine the battery's ability to continuously charge.

[0103] Wherein, as an example, the method may further include the following steps:

[0104] Step 140: After the power sensor disconnects the communication with the vehicle body controller to prohibit the power sensor from triggering the power replenishment request signal, an external power replenishment signal is received at a preset time interval.

[0105] Step 150: Control the power battery to replenish the storage battery according to the external power replenishment signal and obtain a second power replenishment parameter of the storage battery, wherein the second power replenishment parameter is a parameter detected when the power battery replenishes the storage battery.

[0106] Step 160: Determine whether the pressure test of the battery is normal according to the second power replenishment parameter.

[0107] According to the analysis above, when testing the charging function, the power sensor establishes communication with the vehicle's body controller. This is to test whether the vehicle controller can control the power battery to charge the storage battery when the power sensor triggers the charging.

[0108] In actual operation, you can first disable the body controller from sending a recharging request to the vehicle controller, trigger the vehicle controller to control the power battery to recharge the battery, and cut off the communication between the battery power sensor and the body controller, so that the power sensor can disconnect the communication with the vehicle's body controller.

[0109] On this basis, an external power replenishment signal is received at a preset time interval. For example, an external power replenishment signal can be sent to the vehicle controller every 10 minutes. After receiving the power replenishment signal, the vehicle controller can control the power battery to replenish the storage battery.

[0110] After each charging start, the charging can be stopped immediately. After the charging is stopped, the external charging signal is sent again to trigger the vehicle controller to control the power battery to charge the storage battery, and the operation is repeated. In this process, the second charging parameter of the storage battery is obtained, and finally the pressure test of the storage battery is determined to be normal according to the second charging parameter.

[0111] In one embodiment, the second power replenishment parameter includes: a power replenishment number value.

[0112] The charging times value is the number of times the power battery stops charging the storage battery immediately after the power battery is charged to a charging threshold based on the external charging signal.

[0113] In actual operation, since the rate at which the power battery replenishes the storage battery is very high, the storage battery can be quickly converted from a test state to a fully charged state.

[0114] Therefore, during the charging process, the number of times the battery becomes fully charged or becomes a high-charge state (for example, the remaining power value of the battery is in the range of 100% ≥ SOC ≥ 90%) in the test state (the remaining power value is less than 50%) can be counted, and on this basis, the number of times the power battery immediately exits the charging process can be counted to obtain the charging value.

[0115] Wherein, as an example, determining that the pressure test of the battery is normal according to the second power replenishment parameter may include the following steps:

[0116] Step 710: If the number of charging times is greater than a preset value, it is determined that the pressure test of the battery is normal.

[0117] Step 720: If the number of charging times is less than a preset value, it is determined that the pressure test of the battery is abnormal.

[0118] In actual operation, if the number of charging times is greater than the preset value (for example, 100 times), it means that the number of times the battery becomes high-power state in the test state and immediately exits charging meets the test requirements, and it can be determined that the battery pressure test is normal.

[0119] Similarly, if the number of charging times is less than the preset value, it means that the number of times the battery becomes high power in the test state and immediately exits the charging does not meet the test requirements, and it is determined that the battery pressure test is abnormal.

[0120] After establishing communication with the power sensor, the present invention obtains the battery parameters of the battery. If the battery is determined to be in a test state according to the battery parameters of the battery, the power sensor triggers the body controller to send a charging request to the vehicle controller, so that the vehicle controller controls the power battery to perform charging treatment on the battery, and obtains the charging parameters of the battery during the charging process, and determines whether the charging function is normal according to the size of the charging parameters. The above operation method can not only avoid the situation where the power sensor cannot detect the battery power, but also avoid the technical problem of test deviation due to communication interruption, so as to reduce the impact of abnormal signals, and can also combine the charging parameters of the charging treatment to perform functional testing, so as to reduce the deviation of the test results and improve the accuracy of the test.

[0121] Figure 2 The flowchart of the second embodiment of a method for testing the battery charging function provided by the present invention is shown. The method is executed by a test device for the battery charging function. The test device for the battery charging function can be a vehicle controller or a host computer. Figure 2 As shown, the method comprises the following steps:

[0122] The first step is to pull out the VCU fuse in the cockpit fuse box.

[0123] The second step is to discharge the VCU using a discharge device.

[0124] The third step is to observe the battery voltage.

[0125] The fourth step is to observe the battery SOC.

[0126] Step 5: The battery voltage is lower than 12V.

[0127] Step 6: The battery SOC is lower than 50%.

[0128] Step 7: Stop discharging.

[0129] Step 8. After inserting the VCU fuse, switch the power mode to OFF and wait for 2 hours.

[0130] On this basis, a first power replenishment parameter of the battery is obtained, and then according to the magnitude of the first power replenishment parameter, it is determined that the power replenishment function of the battery is normal.

[0131] Figure 3 The flowchart of the third embodiment of the test method of the battery charging function provided by the present invention is shown. The method is executed by a test device for the battery charging function. The test device for the battery charging function can be a vehicle controller or a host computer. Figure 3 As shown, the method comprises the following steps:

[0132] The first step is to recharge the power battery.

[0133] The second step is to pull out the VCU fuse from the cockpit fuse box.

[0134] Step 3: Recharging failed.

[0135] Step 4. After inserting the VCU fuse, switch the power mode to OFF and wait for 2 hours.

[0136] Step 5. Repeat 5 times or more.

[0137] On this basis, a first power replenishment parameter of the battery is obtained, and then according to the magnitude of the first power replenishment parameter, it is determined that the power replenishment function of the battery is normal.

[0138] Figure 4 The flowchart of the fourth embodiment of the method for testing the battery charging function provided by the present invention is shown. The method is executed by a test device for the battery charging function. The test device for the battery charging function can be a vehicle controller or a host computer. Figure 4 As shown, the method comprises the following steps:

[0139] The first step is to recharge the power battery.

[0140] The second step is that the battery voltage is higher than 13V.

[0141] The third step is that the battery SOC is higher than 90%.

[0142] Step 4: Stop charging the power battery.

[0143] On this basis, a first power replenishment parameter of the battery is obtained, and then according to the magnitude of the first power replenishment parameter, it is determined that the power replenishment function of the battery is normal.

[0144] Figure 5 FIG. 1 is a schematic diagram showing the structure of a first embodiment of a test device for a battery charging function provided by the present invention. Figure 5 As shown, the device 300 includes: a battery parameter acquisition module 310 , a first parameter acquisition module 320 and a charging function test module 330 .

[0145] A battery parameter acquisition module is used to acquire battery parameters of the battery after establishing communication with the power sensor;

[0146] A first parameter acquisition module is used to determine that the battery is in a test state according to the battery parameter, trigger the power battery to charge the battery through the power sensor and obtain a first charging parameter, wherein the first charging parameter is a parameter detected by the battery during the charging process;

[0147] The power replenishment function testing module is used to determine whether the power replenishment function of the battery is normal according to the first power replenishment parameter.

[0148] In an optional manner, the first power replenishment parameter includes: a first voltage value and a first power value, wherein the first voltage value is a voltage change value after the power battery replenishes the storage battery according to a preset time, and the first power value is a power change value after the power battery replenishes the storage battery according to a preset time;

[0149] The determining, according to the first power replenishment parameter, that the power replenishment function of the battery is normal includes:

[0150] If the first voltage value is greater than 0 and the first power value is greater than 0, it is determined that the charging function of the battery is normal;

[0151] If the first voltage value is less than 0 or the first power value is less than 0, it is determined that the charging function of the battery is abnormal.

[0152] In an optional manner, the first power replenishment parameter includes: a second voltage value and a second power value, the second voltage change value is a voltage change value detected after the power battery performs several power replenishment operations on the storage battery and fails, and the second power value is a power change value detected after the power battery performs several power replenishment operations on the storage battery and fails;

[0153] The determining, according to the first power replenishment parameter, that the power replenishment function of the battery is normal includes:

[0154] If the second voltage value is greater than 0 and the second power value is greater than 0, it is determined that the charging function of the battery is normal;

[0155] If the second voltage value is less than 0 or the second power value is less than 0, it is determined that the charging function of the battery is abnormal.

[0156] In an optional manner, the operation of the power replenishment failure includes:

[0157] Repeatedly control the power battery to recharge the storage battery, and pull out the VCU fuse of the battery when starting to recharge, so that the battery discharges to the discharge device to make the battery recharging fail.

[0158] In an optional manner, the first power replenishment parameter includes: a third voltage value and a third power value, wherein the third voltage value is a real-time voltage value when the power battery replenishes power to the storage battery; the third power value is a real-time power value when the power battery replenishes power to the storage battery;

[0159] The determining, according to the first power replenishment parameter, that the power replenishment function of the battery is normal includes:

[0160] When the third voltage value is greater than the second voltage threshold and the third power value is greater than the second power threshold, the power battery stops replenishing power to the storage battery, and it is determined that the power replenishment function of the storage battery is normal;

[0161] After the third voltage value is greater than the second voltage threshold and the third power value is greater than the second power threshold, the power battery continues to replenish power for the storage battery, and it is determined that the power replenishment function of the storage battery is abnormal.

[0162] In an optional manner, the battery parameters include a battery voltage value and a remaining power value; and determining that the battery is in a test state according to the battery parameters includes:

[0163] If the battery voltage value is less than a first voltage threshold and the remaining power value is less than a first power threshold, it is determined that the battery is in a test state;

[0164] If the battery voltage value is greater than a first voltage threshold, or the remaining power value is greater than a first power threshold, it is determined that the battery is in a non-test state.

[0165] In an optional manner, the device further includes:

[0166] A signal receiving module, used for receiving an external power replenishment signal at a preset time interval after the power sensor disconnects the communication with the vehicle body controller to prohibit the power sensor from triggering the power replenishment request signal;

[0167] A second parameter acquisition module, used for controlling the power battery to supplement the battery according to the external supplementary power signal and obtaining a second supplementary power parameter of the battery, wherein the second supplementary power parameter is a parameter detected when the power battery supplements the battery;

[0168] The pressure test module is used to determine whether the pressure test of the battery is normal according to the second power replenishment parameter.

[0169] In an optional manner, the second power replenishment parameter includes: a power replenishment number value, which is the number of times the power battery stops replenishing the storage battery immediately after the power replenishment signal reaches the power replenishment threshold;

[0170] The determining, according to the second power replenishment parameter, that the pressure test of the battery is normal includes:

[0171] If the number of times of charging is greater than the preset value, it is determined that the pressure test of the battery is normal;

[0172] If the number of charging times is less than the preset value, it is determined that the pressure test of the battery is abnormal.

[0173] Figure 6 FIG. 1 is a schematic diagram showing a structure of an embodiment of a test system for a battery charging function provided by the present invention. Figure 6 As shown, the battery charging function test system includes: a fuse box, a battery, a power battery, a multimeter, a discharge device, a power sensor, a CAN communication device and a host computer, and the host computer is suitable for the battery charging function test method described in the above embodiment;

[0174] The storage battery is respectively connected to the fuse box, the power battery, the multimeter, the discharge device and the power sensor, the power sensor is connected to the CAN communication device, and the CAN communication device is connected to the host computer.

[0175] Among them, the fuse box can be a cockpit fuse box, the CAN communication device can be a device of signal VN1640, and the host computer can be a VECTOR host computer.

[0176] Figure 7 A schematic structural diagram of an embodiment of a test device for a battery charging function provided by the present invention is shown. The specific embodiment of the present invention does not limit the specific implementation of the test device for a battery charging function.

[0177] like Figure 7As shown, the test equipment for the battery charging function may include: a processor 402 , a communications interface 404 , a memory 406 , and a communication bus 408 .

[0178] The processor 402, the communication interface 404, and the memory 406 communicate with each other via the communication bus 408. The communication interface 404 is used to communicate with other devices such as a client or other server network elements. The processor 402 is used to execute the program 410, which can specifically execute the relevant steps in the above-mentioned test method embodiment for the battery charging function.

[0179] Specifically, the program 410 may include program code including computer executable instructions.

[0180] The processor 402 may be a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiment of the present invention. The one or more processors included in the test equipment for the battery charging function may be processors of the same type, such as one or more CPUs; or processors of different types, such as one or more CPUs and one or more ASICs.

[0181] The memory 406 is used to store the program 410. The memory 406 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0182] The program 410 can be specifically called by the processor 402 to enable the test device for the battery charging function to perform the following operations:

[0183] After establishing communication with the power sensor, the battery parameters of the battery are obtained;

[0184] When it is determined according to the battery parameter that the storage battery is in a test state, the power battery is controlled to replenish the battery with power through the power sensor and obtain a first replenishment parameter, wherein the first replenishment parameter is a parameter detected by the storage battery during the replenishment process;

[0185] It is determined according to the first power replenishment parameter that the power replenishment function of the battery is normal.

[0186] In an optional manner, the program 410 is called by the processor 402 to enable the test device for the battery charging function to perform the following operations:

[0187] After establishing communication with the power sensor, the battery parameters of the battery are obtained;

[0188] When it is determined according to the battery parameter that the storage battery is in a test state, the power battery is controlled to replenish the battery with power through the power sensor and obtain a first replenishment parameter, wherein the first replenishment parameter is a parameter detected by the storage battery during the replenishment process;

[0189] It is determined according to the first power replenishment parameter that the power replenishment function of the battery is normal.

[0190] An embodiment of the present invention provides a computer-readable storage medium, which stores at least one executable instruction. When the executable instruction is executed on a test device / apparatus for a battery charging function, the test device / apparatus for a battery charging function enables the test device / apparatus for a battery charging function to execute a test method for a battery charging function in any of the above-mentioned method embodiments.

[0191] The executable instructions can be specifically used to enable the test equipment / device for the battery charging function to perform the following operations:

[0192] After establishing communication with the power sensor, the battery parameters of the battery are obtained;

[0193] When it is determined according to the battery parameter that the storage battery is in a test state, the power battery is controlled to replenish the battery with power through the power sensor and obtain a first replenishment parameter, wherein the first replenishment parameter is a parameter detected by the storage battery during the replenishment process;

[0194] It is determined according to the first power replenishment parameter that the power replenishment function of the battery is normal.

[0195] In an optional manner, the executable instruction enables the test equipment / device of the battery charging function to perform the following operations:

[0196] After establishing communication with the power sensor, the battery parameters of the battery are obtained;

[0197] When it is determined according to the battery parameter that the storage battery is in a test state, the power battery is controlled to replenish the battery with power through the power sensor and obtain a first replenishment parameter, wherein the first replenishment parameter is a parameter detected by the storage battery during the replenishment process;

[0198] It is determined according to the first power replenishment parameter that the power replenishment function of the battery is normal.

[0199] The algorithms or displays provided herein are not inherently related to any particular computer, virtual system or other device. In addition, the embodiments of the present invention are not directed to any particular programming language.

[0200] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.

[0201] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and further may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive.

[0202] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.

Claims

1. A method for testing the battery charging function, characterized in that: The method comprises: After establishing communication with the power sensor, the battery parameters of the battery are obtained; When it is determined according to the battery parameter that the storage battery is in a test state, the power battery is controlled to replenish the battery with power through the power sensor and obtain a first replenishment parameter, wherein the first replenishment parameter is a parameter detected by the storage battery during the replenishment process; It is determined according to the first power replenishment parameter that the power replenishment function of the battery is normal.

2. The method according to claim 1, characterized in that: The first power replenishment parameter includes: a first voltage value and a first power value, wherein the first voltage value is a voltage change value after the power battery replenishes the storage battery according to a preset time, and the first power value is a power change value after the power battery replenishes the storage battery according to a preset time; The determining, according to the first power replenishment parameter, that the power replenishment function of the battery is normal includes: If the first voltage value is greater than 0 and the first power value is greater than 0, it is determined that the charging function of the battery is normal; If the first voltage value is less than 0 or the first power value is less than 0, it is determined that the charging function of the battery is abnormal.

3. The method according to claim 1, characterized in that The first power replenishment parameter includes: a second voltage value and a second power value, the second voltage change value is a voltage change value detected after the power battery performs several power replenishment operations on the storage battery and fails, and the second power value is a power change value detected after the power battery performs several power replenishment operations on the storage battery and fails; The determining, according to the first power replenishment parameter, that the power replenishment function of the battery is normal includes: If the second voltage value is greater than 0 and the second power value is greater than 0, it is determined that the charging function of the battery is normal; If the second voltage value is less than 0 or the second power value is less than 0, it is determined that the charging function of the battery is abnormal.

4. The method according to claim 3, characterized in that The operation of the power replenishment failure includes: Repeatedly control the power battery to recharge the storage battery, and pull out the VCU fuse of the battery when starting to recharge, so that the battery discharges to the discharge device to make the battery recharging fail.

5. The method according to claim 1, characterized in that The first power replenishment parameter includes: a third voltage value and a third power value, wherein the third voltage value is a real-time voltage value when the power battery replenishes power to the storage battery; the third power value is a real-time power value when the power battery replenishes power to the storage battery; The determining, according to the first power replenishment parameter, that the power replenishment function of the battery is normal includes: When the third voltage value is greater than the second voltage threshold and the third power value is greater than the second power threshold, the power battery stops replenishing power to the storage battery, and it is determined that the power replenishment function of the storage battery is normal; After the third voltage value is greater than the second voltage threshold and the third power value is greater than the second power threshold, the power battery continues to replenish power for the storage battery, and it is determined that the power replenishment function of the storage battery is abnormal.

6. The method according to claim 1, characterized in that The battery parameters include a battery voltage value and a remaining power value; and determining that the battery is in a test state according to the battery parameters includes: If the battery voltage value is less than a first voltage threshold and the remaining power value is less than a first power threshold, it is determined that the battery is in a test state; If the battery voltage value is greater than a first voltage threshold, or the remaining power value is greater than a first power threshold, it is determined that the battery is in a non-test state.

7. The method according to any one of claims 1 to 6, characterized in that: After the step of determining that the charging function of the battery is normal, the method further includes: After the power sensor disconnects communication with the vehicle's body controller to prohibit the power sensor from triggering a power replenishment request signal, an external power replenishment signal is received at a preset time interval; Controlling the power battery to supplement the battery according to the external supplementary power signal and obtaining a second supplementary power parameter of the battery, wherein the second supplementary power parameter is a parameter detected when the power battery supplements the battery; It is determined according to the second power replenishment parameter that the pressure test of the battery is normal.

8. The method according to claim 7, characterized in that The second power replenishment parameter includes: a power replenishment number value, which is the number of times the power battery stops replenishing the storage battery immediately after the power battery replenishes the battery to a power replenishment threshold based on the external power replenishment signal; The determining, according to the second power replenishment parameter, that the pressure test of the battery is normal includes: If the number of times of charging is greater than the preset value, it is determined that the pressure test of the battery is normal; If the number of charging times is less than the preset value, it is determined that the pressure test of the battery is abnormal.

9. A test device for battery charging function, characterized in that: The device comprises: A battery parameter acquisition module is used to acquire battery parameters of the battery after establishing communication with the power sensor; A first parameter acquisition module is used to determine that the battery is in a test state according to the battery parameter, trigger the power battery to charge the battery through the power sensor and obtain a first charging parameter, wherein the first charging parameter is a parameter detected by the battery during the charging process; The power replenishment function testing module is used to determine whether the power replenishment function of the battery is normal according to the first power replenishment parameter.

10. A battery charging function test system, characterized in that: The system comprises: a fuse box, a storage battery, a power battery, a multimeter, a discharge device, a power sensor, a CAN communication device and a host computer, wherein the host computer is suitable for the test method of the battery charging function according to any one of claims 1 to 8; The storage battery is respectively connected to the fuse box, the power battery, the multimeter, the discharge device and the power sensor, the power sensor is connected to the CAN communication device, and the CAN communication device is connected to the host computer.

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