A method and system for quickly detecting charging system status

Abstract

The present invention provides a method for quickly detecting the state of a charging system, which includes the following steps: step S10, triggering a quick detection process in a detection device; step S11, reading the battery information of the vehicle and performing battery coding calibration; step S12, after the vehicle is in a static working condition, collecting the battery state information and obtaining a static working condition determination result; step S13, after the vehicle starts the engine and enters a stable idle working condition, collecting the battery state information and the generator state information and obtaining a first dynamic working condition determination result; step S14, controlling the engine to increase the speed to a predetermined speed, collecting the battery state information and the generator state information and obtaining a second dynamic working condition determination result; step S15, performing a comprehensive analysis based on the above determination results and obtaining a final determination result. The present invention also provides a corresponding system. By implementing the present invention, the determination result of the charging system state can be obtained quickly and accurately, and the efficiency of after-sales maintenance and repair can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply systems for fuel vehicles, and in particular to a method and system for quickly detecting the state of a charging system. Background Art

[0002] At present, the traditional automobile power supply system components are mainly composed of batteries and generators. During the user's use, the charging system fault indicator light displayed on the instrument can remind the user or guide the service shop to perform repairs: Among them, the charging system fault indicator light is only lit by monitoring the generator status, such as monitoring the excitation current of the externally excited generator and monitoring the fault status of the self-excited generator feedback. The above monitoring cannot directly indicate the actual fault of the generator that causes it to fail to work normally;

[0003] In the after-sales maintenance and repair process, operators generally determine the status of the power supply system based on their own experience, such as by observing the battery electric eye, measuring the battery voltage, observing the battery appearance, etc. Or use tools such as multimeters and battery testers to test the battery and generator separately. The battery is generally tested by measuring voltage, battery testers and other tools. The generator is generally tested by measuring the voltage with a multimeter. Since most vehicles are currently equipped with intelligent power generation functions, the power generation voltage of the vehicle is not fixed under different conditions. As a result, the above-mentioned original detection methods cannot detect the actual status of the power supply system or directly lead to misjudgment. Existing battery detection is generally performed by measuring voltage or using a battery tester, and the misjudgment rate is relatively high;

[0004] Due to the differences in experience values ​​caused by personnel differentiation and the development of power management technology leading to the failure of experience, it becomes more difficult for after-sales to diagnose the power supply system, resulting in an increase in the misjudgment rate or the inability to quickly identify the problem. The increase in the misjudgment rate will lead to a large number of claims for normal parts, which will increase the after-sales cost. The inability to quickly identify the problem will increase the workload of after-sales and cause complaints from car owners. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a method and system for quickly detecting the status of a charging system, which can obtain a quick and accurate maintenance basis through the results displayed on the interface, thereby avoiding misjudgment and improving the efficiency of after-sales maintenance and repair.

[0006] As one aspect of the present invention, a method for quickly detecting a charging system status is provided, which comprises the following steps:

[0007] Step S10, after the detection device is connected to the OBD interface of the vehicle and the vehicle is powered on, a rapid detection process in the detection device is triggered;

[0008] Step S11, reading the battery information of the vehicle, performing battery coding verification, and storing the battery coding verification result;

[0009] Step S12, after the vehicle is in a static working condition, collecting battery status information to obtain a static working condition determination result;

[0010] Step S13, after the vehicle starts the engine and enters a stable idle condition, the battery status information and the generator status information are collected to obtain a first dynamic condition determination result;

[0011] Step S14, controlling the engine to increase the speed to a predetermined speed, collecting battery status information and generator status information, and obtaining a second dynamic operating condition determination result;

[0012] Step S15, performing a comprehensive analysis based on the battery code calibration result, the static operating condition determination result, the first dynamic operating condition determination result, and the second dynamic determination result to obtain a final determination result and display or output it.

[0013] Wherein, the step S11 is specifically as follows:

[0014] After the vehicle is powered on, the detection device obtains the code of the vehicle battery sensor (EBS) through the unified diagnostic service protocol (UDS), and compares it with the coding data of the corresponding vehicle model configuration in its database to obtain the battery coding calibration result.

[0015] Wherein, the step S12 is specifically as follows:

[0016] Step S120, after the vehicle is in a static state, the detection device obtains battery status information through a battery sensor and confirms whether the battery power accuracy signal meets a predetermined threshold;

[0017] Step S121, after the battery power accuracy signal meets a predetermined threshold, the detection device collects the battery status information for a predetermined time, and the battery status information at least includes battery voltage, battery power, and battery aging status;

[0018] Step S122, the detection device performs averaging processing on the battery status information collected for a predetermined time period;

[0019] In step S123, the detection device compares the averaged signal with a predetermined threshold value, completes the determination under the static working condition, and obtains the static working condition determination result.

[0020] Wherein, the step S13 is specifically as follows:

[0021] Step S130, the detection device prompts the operator to start the engine and monitors whether the engine is started;

[0022] Step S131, after the engine is started and enters a stable idle condition, the detection device continuously collects battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time;

[0023] Step S132, the detection device performs averaging processing on the collected signal;

[0024] In step S133, the detection device compares the averaged signal with a predetermined threshold value, completes the determination under the first dynamic working condition, and obtains the determination result of the first dynamic working condition.

[0025] Wherein, the step S14 is specifically as follows:

[0026] Step S140, the detection device monitors whether the engine is maintained in an operating condition;

[0027] Step S141, when it is detected that the engine is continuously in the running state, the detection device controls the engine to increase the speed to a predetermined speed through the UDS;

[0028] Step S142, the detection device continuously collects battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time;

[0029] Step S143, the detection device performs averaging processing on the collected signal;

[0030] In step S144, the detection device compares the averaged signal with a predetermined threshold value, completes the determination under the second dynamic working condition, and obtains the determination result of the second dynamic working condition.

[0031] Wherein, the step S15 is specifically as follows:

[0032] Step S150, the detection device determines the battery code verification result. When the battery code verification is unsuccessful, an EBS code error prompt is output and the matching process is repeated; when the battery code verification is successful, the next step is entered;

[0033] Step S151, the detection device determines whether the battery power accuracy signal meets a predetermined threshold; if the judgment result is not satisfied, it is determined to perform and output only the result diagnosis of the generator component; otherwise, it is determined to perform and output the result diagnosis of the battery and the generator component at the same time;

[0034] In step S152, the detection equipment compares the static operating condition determination result, the first dynamic operating condition determination result, and the second dynamic determination result with the predetermined diagnostic conditions of the battery component and the diagnostic conditions of the generator component, obtains the battery diagnostic result and the generator component diagnostic result, respectively, and selectively displays or outputs the results.

[0035] Accordingly, the present invention also provides a system for quickly detecting the state of a charging system, which is arranged in a detection device and comprises:

[0036] A trigger unit is used to connect the detection device to the OBD interface of the vehicle and trigger a rapid detection process in the detection device after the vehicle is powered on;

[0037] A battery code calibration unit, used to obtain battery information of the vehicle, perform battery code calibration, and store the battery code calibration result;

[0038] A static working condition detection unit, used to collect battery status information after the vehicle is in a static working condition and obtain a static working condition determination result;

[0039] A first dynamic operating condition detection unit is used to collect battery status information and generator status information after the vehicle starts the engine and enters a stable idle condition, and obtain a first dynamic operating condition determination result;

[0040] The second dynamic operating condition detection unit is used to control the engine to increase the speed to a predetermined speed, collect battery status information and generator status information, and obtain a second dynamic operating condition determination result;

[0041] The comprehensive determination unit is used to perform comprehensive analysis based on the battery code calibration result, the static working condition determination result, the first dynamic working condition determination result, and the second dynamic determination result to obtain the final determination result and display or output it.

[0042] Wherein, the battery code checking unit is specifically used for:

[0043] The detection device obtains the code of the vehicle battery sensor (EBS) through the unified diagnostic service protocol (UDS), and compares it with the code data of the corresponding vehicle model configuration in its database to obtain the battery code calibration result.

[0044] Wherein, the static working condition detection unit further comprises:

[0045] A power accuracy signal confirmation unit, used to obtain battery status information through a battery sensor after the vehicle is in a static working condition, and to confirm whether the battery power accuracy signal meets a predetermined threshold;

[0046] A first information collection unit, configured to collect the battery status information for a predetermined time after the battery power accuracy signal meets a predetermined threshold, wherein the battery status information includes at least battery voltage, battery power, and battery aging status;

[0047] A first averaging processing unit, used for averaging the collected battery status information of a predetermined time period;

[0048] The static working condition determination result obtaining unit is used to compare the signal after the averaging process with a predetermined threshold value, complete the determination under the static working condition, and obtain the static working condition determination result.

[0049] Wherein, the first dynamic working condition detection unit comprises:

[0050] A start prompt monitoring unit, used to prompt the operator to start the engine and monitor whether the engine is started;

[0051] The second information collection unit is used to continuously collect battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time after the engine is started and enters a stable idle condition;

[0052] A second averaging processing unit, used for performing averaging processing on the signal collected by the second information collection unit;

[0053] The first dynamic working condition determination result obtaining unit is used to compare the averaged signal with a predetermined threshold value, complete the determination under the first dynamic working condition, and obtain the first dynamic working condition determination result.

[0054] Wherein, the second dynamic working condition detection unit comprises:

[0055] A detection unit for monitoring whether the engine is maintained in operating condition;

[0056] A speed increase control unit, used to control the engine to increase the speed to a predetermined speed through the UDS when it is detected that the engine is continuously in the running state;

[0057] The third information collection unit is used to continuously collect the battery voltage, power, generator target voltage, generator load rate, and battery charging current signal within a predetermined time;

[0058] A second averaging processing unit, used for performing averaging processing on the signal collected by the third information collection unit;

[0059] The second dynamic working condition determination result obtaining unit is used to compare the averaged signal with a predetermined threshold value, complete the determination under the second dynamic working condition, and obtain the second dynamic working condition determination result.

[0060] Wherein, the comprehensive determination unit comprises:

[0061] The battery code verification result processing unit is used to judge the battery code verification result. When the battery code verification is unsuccessful, an EBS code error prompt is output and the matching process is repeated;

[0062] The power accuracy result processing unit is used to determine whether the battery power accuracy signal meets a predetermined threshold; if the judgment result is not satisfied, determine to perform and output only the result diagnosis of the generator component; otherwise, determine to perform and output the result diagnosis of the battery and the generator component at the same time;

[0063] The diagnostic result obtaining unit is used to compare the static operating condition determination result, the first dynamic operating condition determination result, the second dynamic determination result with the predetermined diagnostic conditions of the battery component and the diagnostic conditions of the generator component, respectively obtain the battery diagnostic result and the generator component diagnostic result, and selectively display or output the results.

[0064] The implementation of the embodiments of the present invention has the following beneficial effects:

[0065] In the embodiment of the present invention, the detection device allows the power supply system to enter different working states through passive acceptance or active control according to the battery characteristics, generator characteristics and vehicle configuration under different working conditions. The device finally detects the working state of the power supply system under various working conditions and outputs the final detection result. Users of the detection device (such as maintenance and repair personnel) can obtain fast and accurate maintenance basis through the interface display results to determine subsequent treatment measures;

[0066] In the present invention, after the detection device enters the detection interface, the detection can be automatically completed by one button, without the need for the operator to make judgments by themselves, and the detection results can be output quickly, ultimately achieving the effect of reducing the detection workload, reducing the detection time, and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0068] Figure 1 A schematic diagram of the main process of an embodiment of a method for quickly detecting the state of a charging system provided by the present invention;

[0069] Figure 2 for Figure 1 A more detailed flowchart of step S12;

[0070] Figure 3 for Figure 1 A more detailed flowchart of step S13;

[0071] Figure 4 for Figure 1 A more detailed flowchart of step S14;

[0072] Figure 5 for Figure 1 A more detailed flowchart of step S15;

[0073] Figure 6 A schematic diagram of the structure of an embodiment of a system for quickly detecting the status of a charging system provided by the present invention;

[0074] Figure 7 for Figure 6 A schematic diagram of the structure of the static working condition detection unit;

[0075] Figure 8 for Figure 6 A structural schematic diagram of the first dynamic working condition detection unit;

[0076] Fig. 9 for Figure 6 A structural schematic diagram of the first dynamic working condition detection unit;

[0077] Fig.10 for Figure 6 Schematic diagram of the structure of the comprehensive judgment unit. DETAILED DESCRIPTION

[0078] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0079] like Figure 1 FIG. 1 is a schematic diagram showing a main flow chart of an embodiment of a method for quickly detecting the state of a charging system provided by the present invention, and FIG. Figures 2 to 5 In this embodiment, the method for quickly detecting the state of the charging system includes the following steps:

[0080] Step S10, after the detection device is connected to the OBD interface (on-board diagnostic system interface) of the vehicle and the vehicle is powered on, a rapid detection process in the detection device is triggered;

[0081] Specifically, in one example, the vehicle is powered on first, and the detection device is connected to the vehicle through the unified diagnostic service protocol (OBD), and the display screen of the detection device will display the detection interface. The detection device will then pop up a prompt box to remind the user to turn off the high-power electrical appliances on the vehicle. After the user clicks to confirm, the detection device begins to enter the detection process. Among them, turning off the high-power electrical appliances on the vehicle can reduce interference with the subsequent formal test process.

[0082] Step S11, the detection device reads the battery information of the vehicle, performs battery coding verification, and stores the battery coding verification result;

[0083] More specifically, in one example, the step S11 specifically includes that after the vehicle is powered on, the detection device obtains the code of the vehicle battery sensor (EBS) through the UDS, and compares it with the coding data of the corresponding vehicle model configuration in its database to obtain the battery code calibration result. Since the battery code is stored in the EBS, the EBS calls the internal basic parameters according to the code. If the coding is wrong, the EBS output signal will not match the actual battery status. Among them, the battery model, capacity, EBS battery sensor code and other information corresponding to the vehicle model are pre-stored in the database of the detection device. The following Table 1 shows the record information of the battery code calibration result in an example, wherein EBS_Code_Error_Flag is the EBS code error flag.

[0084] Table 1. Record information of battery coding verification results

[0085] The coding comparison results are consistent EBS_Code_Error_Flag = 0 The encoding comparison results are inconsistent EBS_Code_Error_Flag = 1

[0086] Step S12, after the vehicle is in a static working condition, collecting battery status information, obtaining and storing a static working condition determination result;

[0087] More specifically, in one example, step S12 is specifically:

[0088] Step S120, after the vehicle is in a static state, the detection device obtains battery status information through a battery sensor and confirms whether the battery power accuracy signal meets a predetermined threshold;

[0089] In one example, the Battery_testout_flag (accuracy test output flag) can be assigned a value according to the collected BatterySOC_state (battery power accuracy signal) to indicate whether the battery power accuracy information meets a predetermined threshold. The following Table 2 shows the corresponding table:

[0090] Table 2 Correspondence table of battery power accuracy information

[0091] BatterySOC_state Battery_testout_flag Accuracy meets =1not prohibit Accuracy is not satisfactory =0prohibit

[0092] Step S121, after the battery power accuracy signal meets a predetermined threshold, the detection device collects the battery status information for a predetermined time, and the battery status information at least includes battery voltage, battery power, and battery aging status;

[0093] Specifically, the test equipment starts the static test process, collects BatteryVolt (battery voltage), BatterySOC (battery charge), SOH_SUL (sulfurization degree), SOH_LAM (active capacity), BatterySOC_state (battery charge state value), SOH_SUL_state (sulfurization state value), SOH_LAM_state (active capacity state value) signals through EBS (battery sensor), and after confirming that the accuracy is met, the equipment should start to continuously sample BatteryVolt and BatterySOC signals and set the counter to start timing. After the timer reaches the condition (such as 10s), the device stops data collection.

[0094] Step S122, the detection device averages the battery status information collected for a predetermined time period; the data is averaged to obtain BatteryVolt_aver (battery voltage average) and BatterySOC_aver (battery charge average).

[0095] In step S123, the detection device compares the signal after the homogenization process with the predetermined threshold value, completes the determination under the static working condition, obtains the static working condition determination result and stores it. The following table 3 shows the determination conditions and result comparison table under the static working condition:

[0096] Table 3 Comparison of judgment conditions and results under static conditions

[0097]

[0098] It can be understood that this step mainly measures the battery power, voltage and signal accuracy under static conditions, and preliminarily determines whether the battery is currently in a low-power or other abnormal output state; among them, BatterySocLow_Flag is the battery SOC low flag, BatteryVoltLow_Flag is the battery charge state low flag, and BatteryError1_Flag and BatteryError2_flag are two types of battery abnormality flags corresponding to the two.

[0099] Step S13, after the vehicle starts the engine and enters a stable idle condition (low speed, low generator output power), collect battery status information and generator status information, obtain a first dynamic condition determination result and store it;

[0100] More specifically, in one example, step S13 is as follows:

[0101] Step S130, the detection device prompts the operator to start the engine and monitors whether the engine is started; for example, the detection device can pop up a prompt box to prompt the operator to start the engine, and the device monitors whether the engine is started after the operator confirms the start of the engine. The device monitors whether the engine is started according to the Eng_st signal sent by the engine controller;

[0102] Step S131, after the engine is started and enters a stable idle condition, the detection device continuously collects battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time;

[0103] For example, when Eng_st = ON and the time lasts for more than 10s, the device starts to set the first dynamic timer (Timer_dynamic1) and continuously collects the battery voltage (BatteryVolt_dyn1), power (BatterySOC_dyn1), generator target voltage (GenTarVolt_dyn1), generator load rate (GenLoadDuty_dyn1), and battery charging current (BatteryCurrent_dyn1) signals. After the timer reaches the condition (such as 10s), the device stops data collection.

[0104] Step S132, the detection equipment averages the collected signals; specifically, the data is averaged to obtain BatterySOC_dyn1_aver (first dynamic battery power average), BatteryVolt_dyn1_aver (first dynamic battery voltage average), GenTarVolt_dyn1_aver (first dynamic engine target voltage average), GenLoadDuty_dyn1_aver (first dynamic engine load power average), and BatteryCurrent_dyn1_aver (first dynamic battery charging current average).

[0105] Step S133, the detection device compares the averaged signal with a predetermined threshold value, completes the determination under the first dynamic condition, obtains the first dynamic condition determination result and stores it. The following Table 4 shows the determination conditions and result comparison table under the first dynamic condition:

[0106] Table 4 Comparison of judgment conditions and results under the first dynamic condition

[0107]

[0108] It can be understood that this step mainly monitors the working status of the generator and battery when the engine is running and at a low speed, so as to obtain preliminary detection results of the power supply system components. Among them, GenError1_Flag, GenError2_Flag, BatteryError3_Flag and GenError5_Flag are the corresponding generator abnormality and battery abnormality flags respectively.

[0109] Step S14, controlling the engine to increase the speed to a predetermined speed (such as 1500 rpm), collecting battery status information and generator status information, obtaining and storing the second dynamic operating condition determination result;

[0110] More specifically, in one example, step S14 is as follows:

[0111] Step S140, the detection device monitors whether the engine is maintained in an operating condition;

[0112] Step S141, when it is detected that the engine is continuously in the running state, the detection device controls the engine to increase the speed to a predetermined speed, such as 1500 rpm, through the UDS, so that the vehicle is at a higher speed and the output power of the generator is increased;

[0113] Step S142, the detection device continuously collects the battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time; specifically, after confirming that the engine responds to the speed request, the detection device can start setting the second dynamic timer (Timer_dynamic2) and continuously collect the battery voltage (BatteryVolt_dyn2), power (BatterySOC_dyn2), generator target voltage (GenTarVolt_dyn2), generator load rate (GenLoadDuty_dyn2), and battery charging current (BatteryCurrent_dyn2) signals. After the timer reaches the condition (such as 10s), the device stops data collection.

[0114] Step S143, the detection equipment averages the collected signals; specifically, average processing is performed to obtain data such as BatterySOC_dyn2_aver (second dynamic battery power average), BatteryVolt_dyn2_aver (second dynamic battery voltage average), GenTarVolt_dyn2_aver (second dynamic engine target voltage average), GenLoadDuty_dyn2_aver (second dynamic engine load power average), and BatteryCurrent_dyn2_aver (second dynamic battery charging current average).

[0115] Step S144, the detection device compares the averaged signal with a predetermined threshold value, completes the determination under the second dynamic condition, obtains the second dynamic condition determination result and stores it. The following Table 5 shows the determination conditions and result comparison table under the second dynamic condition:

[0116] Table 5 Comparison of judgment conditions and results under the second dynamic condition

[0117]

[0118]

[0119] It is understandable that this step is mainly used to release the maximum output power of the generator under high speed conditions. Under this condition, the equipment monitors the working status of the generator and battery to further confirm the detection results and improve the detection accuracy. Among them, GenError3_Flag, GenError4_Flag, BatteryError4_Flag and GenError5_Flag are the corresponding generator abnormality and battery abnormality flags respectively.

[0120] Step S15, performing a comprehensive analysis based on the battery code calibration result, the static operating condition determination result, the first dynamic operating condition determination result, and the second dynamic determination result to obtain a final determination result and display or output it.

[0121] More specifically, in one example, step S15 is as follows:

[0122] Step S150, the detection device determines the battery code verification result. When the battery code verification is unsuccessful (ie, EBS_Code_Error_Flag=1), an EBS code error prompt is output and the matching process is repeated; when the battery code verification is successful (ie, EBS_Code_Error_Flag=0), the next step is entered;

[0123] Step S151, the detection device determines whether the battery power accuracy signal meets the predetermined threshold value (i.e., Battery_testout_flag=prohibit); when the judgment result is not satisfied (i.e., Battery_testout_flag=notprohibit), it is determined to perform and output the result diagnosis of only the generator component; otherwise, it is determined to perform and output the result diagnosis of both the battery and the generator component;

[0124] Step S152, the detection device compares the static working condition determination result, the first dynamic working condition determination result, and the second dynamic determination result with the predetermined diagnostic conditions of the battery component and the diagnostic conditions of the generator component, respectively obtains the battery diagnostic result and the generator component diagnostic result, and selectively displays or outputs the results. The following Tables 6 and 7 respectively show the diagnostic conditions and output results comparison table of the battery component and the diagnostic conditions and output results comparison table of the generator component.

[0125] Table 6 Comparison table of diagnostic conditions and output results of battery components

[0126]

[0127]

[0128] Table 7 Comparison table of diagnostic conditions and output results of generator components

[0129]

[0130] like Figure 6 FIG. 1 is a schematic diagram showing a structure of an embodiment of a system for quickly detecting the state of a charging system provided by the present invention. Figure 6-Figure 10 As shown, in this embodiment, the system 1 for quickly detecting the state of the charging system is provided in a detection device, which includes:

[0131] The trigger unit 11 is used to trigger the rapid detection process in the detection device after the detection device is connected to the OBD interface of the vehicle;

[0132] The battery code checking unit 12 is used to read the battery information of the vehicle after the vehicle is powered on, and to check the battery code and store the battery code checking result;

[0133] The static working condition detection unit 13 is used to collect battery status information after the vehicle is in a static working condition, obtain a static working condition determination result and store it;

[0134] A first dynamic operating condition detection unit 14 is used to collect battery status information and generator status information after the vehicle starts the engine and enters a stable idle operating condition, obtain a first dynamic operating condition determination result and store it;

[0135] The second dynamic operating condition detection unit 15 is used to control the engine to increase the speed to a predetermined speed, collect battery status information and generator status information, obtain the second dynamic operating condition determination result and store it;

[0136] The comprehensive determination unit 16 is used to perform comprehensive analysis based on the battery code calibration result, the static operating condition determination result, the first dynamic operating condition determination result, and the second dynamic determination result to obtain the final determination result and display or output it.

[0137] More specifically, in one example, the battery code checking unit 12 is specifically used for:

[0138] After the vehicle is powered on, the detection device obtains the code of the vehicle battery sensor (EBS) through the unified diagnostic service protocol (UDS), and compares it with the coding data of the corresponding vehicle model configuration in its database to obtain the battery coding calibration result.

[0139] More specifically, in one example, the static working condition detection unit 13 further includes:

[0140] The power accuracy signal confirmation unit 130 is used to obtain battery status information through the battery sensor after the vehicle is in a static working condition, and to confirm whether the battery power accuracy signal meets a predetermined threshold;

[0141] The first information collection unit 131 is used to collect the battery status information for a predetermined time after the battery power accuracy signal meets a predetermined threshold, and the battery status information at least includes battery voltage, battery power, and battery aging status;

[0142] A first averaging processing unit 132, configured to perform averaging processing on the collected battery status information of a predetermined time period;

[0143] The static working condition determination result obtaining unit 134 is used to compare the signal after the averaging process with a predetermined threshold value, complete the determination under the static working condition, obtain the static working condition determination result and store it.

[0144] More specifically, in one example, the first dynamic operating condition detection unit 14 includes:

[0145] A start prompt monitoring unit 140 is used to prompt the operator to start the engine and monitor whether the engine is started;

[0146] The second information collection unit 141 is used to continuously collect battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time after the engine is started and enters a stable idle condition;

[0147] A second averaging processing unit 142, configured to perform averaging processing on the signal collected by the second information collecting unit;

[0148] The first dynamic working condition determination result obtaining unit 143 is used to compare the averaged signal with a predetermined threshold value, complete the determination under the first dynamic working condition, obtain the first dynamic working condition determination result and store it.

[0149] More specifically, in one example, the second dynamic operating condition detection unit 15 includes:

[0150] A detection unit 150, for monitoring whether the engine is maintained in an operating condition;

[0151] The speed increasing control unit 151 is used to control the engine to increase the speed to a predetermined speed through the UDS when it is detected that the engine is continuously in the running state;

[0152] The third information collection unit 152 is used to continuously collect the battery voltage, power, generator target voltage, generator load rate, and battery charging current signal within a predetermined time;

[0153] A second averaging processing unit 153, used for performing averaging processing on the signal collected by the third information collection unit;

[0154] The second dynamic working condition determination result obtaining unit 154 is used to compare the averaged signal with a predetermined threshold value, complete the determination under the second dynamic working condition, obtain the second dynamic working condition determination result and store it.

[0155] More specifically, in one example, the comprehensive determination unit 16 includes:

[0156] The battery code verification result processing unit 160 is used to determine the battery code verification result. When the battery code verification is unsuccessful, an EBS code error prompt is output and the matching process is repeated;

[0157] The power accuracy result processing unit 161 is used to determine whether the battery power accuracy signal meets a predetermined threshold; if the judgment result is not satisfied, determine to perform and output only the result diagnosis of the generator component; otherwise, determine to perform and output the result diagnosis of both the battery and the generator component;

[0158] The diagnostic result obtaining unit 162 is used to compare the static operating condition determination result, the first dynamic operating condition determination result, the second dynamic determination result with the predetermined diagnostic conditions of the battery component and the diagnostic conditions of the generator component, respectively obtain the battery diagnostic result and the generator component diagnostic result, and selectively display or output the results.

[0159] For more details, please refer to and combine the above Figures 1 to 5 The description is not given in detail here.

[0160] The implementation of the embodiments of the present invention has the following beneficial effects:

[0161] In the embodiment of the present invention, the detection device allows the power supply system to enter different working states through passive acceptance or active control according to the battery characteristics, generator characteristics and vehicle configuration under different working conditions. The device finally detects the working state of the power supply system under various working conditions and outputs the final detection result. Users of the detection device (such as maintenance and repair personnel) can obtain fast and accurate maintenance basis through the interface display results to determine subsequent treatment measures;

[0162] In the present invention, after the detection device enters the detection interface, the detection can be automatically completed by one button, without the need for the operator to make judgments by themselves, and the detection results can be output quickly, ultimately achieving the effect of reducing the detection workload, reducing the detection time, and improving the detection efficiency.

[0163] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0164] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0165] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for quickly detecting the status of a charging system, characterized in that: The steps include: Step S10, after the detection device is connected to the OBD interface of the vehicle and the vehicle is powered on, a rapid detection process in the detection device is triggered; Step S11, reading the battery information of the vehicle, performing battery coding verification, and storing the battery coding verification result; Step S12, after the vehicle is in a static working condition, collecting battery status information to obtain a static working condition determination result, wherein the battery status information at least includes battery voltage, battery power, and battery aging status; Step S13, after the vehicle starts the engine and enters a stable idle condition, the battery status information and the generator status information are collected to obtain a first dynamic condition determination result, wherein the battery status information includes: battery voltage, power and battery charging current signal, and the generator status information includes: generator target voltage and generator load rate; Step S14, controlling the engine to increase the speed to a predetermined speed, collecting battery status information and generator status information, and obtaining a second dynamic operating condition determination result; Step S15, performing a comprehensive analysis based on the battery code verification result, the static working condition determination result, the first dynamic working condition determination result, and the second dynamic determination result to obtain a final determination result and display or output it; Wherein, the step S12 is specifically as follows: Step S120, after the vehicle is in a static state, the detection device obtains battery status information through a battery sensor and confirms whether the battery power accuracy signal meets a predetermined threshold; Step S121, after the battery power accuracy signal meets a predetermined threshold, the detection device performs a collection operation on the battery status information for a predetermined time period; Step S122, the detection device performs averaging processing on the battery status information collected for a predetermined time period; Step S123, the detection device compares the averaged signal with a predetermined threshold value, completes the determination under static conditions, and obtains a static condition determination result; The step S15 is specifically as follows: Step S150, the detection device determines the battery code verification result. When the battery code verification is unsuccessful, an EBS code error prompt is output and the matching process is repeated; when the battery code verification is successful, the next step is entered; Step S151, the detection device determines whether the battery power accuracy signal meets a predetermined threshold; if the judgment result is not satisfied, it is determined to perform and output only the result diagnosis of the generator component; otherwise, it is determined to perform and output the result diagnosis of the battery and the generator component at the same time; In step S152, the detection equipment compares the static operating condition determination result, the first dynamic operating condition determination result, and the second dynamic determination result with the predetermined diagnostic conditions of the battery component and the diagnostic conditions of the generator component, obtains the battery diagnostic result and the generator component diagnostic result, respectively, and selectively displays or outputs the results.

2. The method according to claim 1, characterized in that The step S11 is specifically as follows: The detection device obtains the code of the battery sensor through a unified diagnostic service protocol, and compares it with the code data of the corresponding vehicle model configuration in its database to obtain a battery code calibration result.

3. The method according to claim 2, characterized in that The step S13 is specifically as follows: Step S130, the detection device prompts the operator to start the engine and monitors whether the engine is started; Step S131, after the engine is started and enters a stable idle condition, the detection device continuously collects battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time; Step S132, the detection device performs averaging processing on the collected signal; In step S133, the detection device compares the averaged signal with a predetermined threshold value, completes the determination under the first dynamic working condition, and obtains the determination result of the first dynamic working condition.

4. The method according to claim 3, characterized in that The step S14 is specifically as follows: Step S140, the detection device monitors whether the engine is maintained in an operating condition; Step S141, when it is detected that the engine is continuously in the running state, the detection device controls the engine to increase the speed to a predetermined speed through the UDS; Step S142, the detection device continuously collects battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time; Step S143, the detection device performs averaging processing on the collected signal; In step S144, the detection device compares the averaged signal with a predetermined threshold value, completes the determination under the second dynamic working condition, and obtains the determination result of the second dynamic working condition.

5. A system for quickly detecting the status of a charging system, arranged in a detection device, characterized in that: include: A trigger unit is used to connect the detection device to the OBD interface of the vehicle and trigger a rapid detection process in the detection device after the vehicle is powered on; A battery code calibration unit, used to obtain battery information of the vehicle, perform battery code calibration, and store the battery code calibration result; A static working condition detection unit, used to collect battery status information after the vehicle is in a static working condition to obtain a static working condition determination result, wherein the battery status information at least includes battery voltage, battery power, and battery aging status; A first dynamic operating condition detection unit is used to collect battery status information and generator status information after the vehicle starts the engine and enters a stable idle operating condition, and obtain a first dynamic operating condition determination result, wherein the battery status information includes: battery voltage, power and battery charging current signal, and the generator status information includes: generator target voltage and generator load rate; The second dynamic operating condition detection unit is used to control the engine to increase the speed to a predetermined speed, collect battery status information and generator status information, and obtain a second dynamic operating condition determination result; A comprehensive determination unit, used to perform comprehensive analysis based on the battery code calibration result, the static working condition determination result, the first dynamic working condition determination result, and the second dynamic determination result, to obtain a final determination result and display or output it; Wherein, the static working condition detection unit further comprises: A power accuracy signal confirmation unit, used to obtain battery status information through a battery sensor after the vehicle is in a static working condition, and to confirm whether the battery power accuracy signal meets a predetermined threshold; A first information collection unit, configured to collect the battery status information for a predetermined time after the battery power accuracy signal meets a predetermined threshold; A first averaging processing unit, used for averaging the collected battery status information of a predetermined time period; A static working condition determination result obtaining unit is used to compare the signal after the averaging process with a predetermined threshold value, complete the determination under the static working condition, and obtain the static working condition determination result; The comprehensive determination unit comprises: The battery code verification result processing unit is used to judge the battery code verification result. When the battery code verification is unsuccessful, an EBS code error prompt is output and the matching process is repeated; The power accuracy result processing unit is used to determine whether the battery power accuracy signal meets a predetermined threshold; if the judgment result is not satisfied, determine to perform and output only the result diagnosis of the generator component; otherwise, determine to perform and output the result diagnosis of the battery and the generator component at the same time; The diagnostic result obtaining unit is used to compare the static operating condition determination result, the first dynamic operating condition determination result, the second dynamic determination result with the predetermined diagnostic conditions of the battery component and the diagnostic conditions of the generator component, respectively obtain the battery diagnostic result and the generator component diagnostic result, and selectively display or output the results.

6. The system according to claim 5, characterized in that The battery code checking unit is specifically used for: The detection device obtains the code of the battery sensor through a unified diagnostic service protocol, and compares it with the code data of the corresponding vehicle model configuration in its database to obtain a battery code calibration result.

7. The system according to claim 6, characterized in that The first dynamic working condition detection unit comprises: A start prompt monitoring unit, used to prompt the operator to start the engine and monitor whether the engine is started; The second information collection unit is used to continuously collect battery voltage, power, generator target voltage, generator load rate, and battery charging current signals within a predetermined time after the engine is started and enters a stable idle condition; A second averaging processing unit, used for performing averaging processing on the signal collected by the second information collection unit; The first dynamic working condition determination result obtaining unit is used to compare the averaged signal with a predetermined threshold value, complete the determination under the first dynamic working condition, and obtain the first dynamic working condition determination result.

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