WO2021259152A1

WO2021259152A1 - Battery test method and apparatus

Info

Publication number: WO2021259152A1
Application number: PCT/CN2021/100813
Authority: WO
Inventors: 瞿松松
Original assignee: 深圳市道通科技股份有限公司
Priority date: 2020-06-23
Filing date: 2021-06-18
Publication date: 2021-12-30
Also published as: CN111722112B; CN111722112A

Abstract

A battery test method, applied to a battery test apparatus (20, 80). The battery test apparatus (20, 80) is connected to a storage battery of a vehicle (10) by means of an electrical connector, and the battery test apparatus (20, 80) is communicationally connected to an electronic control unit in the vehicle (10) via a hardware communication interface. The test method comprises: obtaining an electronic control unit list comprised in a vehicle (10) according to vehicle identification information of the vehicle (10) (S10); determining a load charge requirement of the vehicle (10) according to the electronic control unit list (S20); testing a storage battery to determine startability and battery capacity of the storage battery (S30); and generating a battery test result according to the load charge requirement and the startability and battery capacity of the storage battery (S40). By intelligently determining the load charge requirement of the vehicle (10), testing the startability and battery capacity of the storage battery of the vehicle (10), and determining a battery test result, the abnormal battery detection rate of the vehicle (10) can be improved.

Description

Battery detection method and equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on June 23, 2020, the application number is 2020105834147, and the application name is "a battery testing method and equipment", the entire content of which is incorporated into this application by reference .

Technical field

This application relates to the field of automotive electronics technology, in particular to a battery detection method and equipment.

Background technique

Modern technology is developing faster and faster. There are more and more electronic devices on the car, and the requirements for battery capacity are getting higher and higher. Not only is it required to be able to start the car normally, but it also needs to be able to provide enough for the car’s electrical appliances in some specific scenarios. Power support.

The battery detector is a device for real-time and complete online detection and management of the battery in the power system. It has been widely used in the management of energy storage batteries in power, communications, transportation, automobiles and other related industries. Traditional battery testers generally can only detect whether the starting capacity of the car battery can meet the requirements, and whether the remaining capacity of the battery can meet the requirements of the current car is one of the pain points in the industry. Very few battery tester manufacturers provide battery Capacity detection, but the method is too simple, only a few abnormal batteries can be detected.

In the process of implementing the embodiments of the present invention, the inventor found that the related technology has at least the following problems: the existing battery detection often has misjudgments, which makes users unable to adapt. When the battery with insufficient capacity is not detected in time, it will cause the car owner Unexpected situations occur during use, ranging from the car's failure to start, breaking down halfway, and even causing loss of life and property.

In view of this, the existing technology urgently needs to be improved.

Summary of the invention

The embodiment of the present invention aims to provide a battery detection method and device, which solves the technical problem of misjudgment in battery detection and improves the detection rate of abnormal batteries in automobiles.

In order to solve the above technical problems, the embodiments of the present invention provide the following technical solutions:

In a first aspect, an embodiment of the present invention provides a battery detection method, which is characterized by being applied to a battery detection device, the battery detection device is connected to a battery in a vehicle through an electrical connector, and the battery detection device communicates through hardware The interface is communicatively connected with the electronic control unit in the vehicle, and the method includes:

Obtaining a list of electronic control units included in the vehicle according to the vehicle identification information of the vehicle;

Determine the load power demand of the vehicle according to the electronic control unit list;

Testing the battery to determine the starting ability and battery capacity of the battery;

According to the load power demand, the starting ability of the battery, and the battery capacity, a battery detection result is generated.

In some embodiments, the electronic control unit list includes the type and number of electronic control units, and the determining the load power demand of the vehicle according to the electronic control unit list includes:

According to the type of each electronic control unit, determine the power supply requirement of each electronic control unit type;

Determine the type of each electronic control unit and its corresponding quantity, calculate the power supply demand of all electronic control units, and determine the power supply demand of all electronic control units as the load power demand of the vehicle.

In some embodiments, the determining the power supply requirement of each electronic control unit type according to the type of each electronic control unit includes:

Determine the power consumption of each electronic control unit type according to the pre-established power supply demand data table;

According to the power consumption, the power supply requirement of the electronic control unit type is determined.

In some embodiments, the determining the power supply requirement of the electronic control unit type according to the power consumption includes:

Determine the current consumption value of the electronic control unit type according to the power consumption of each electronic control unit type;

According to the current consumption value, calculating the power consumption value of the electronic control unit within a preset time;

The amount of power consumed by the electronic control unit within a preset time is determined as the power supply requirement of the electronic control unit type.

In some embodiments, the battery detection result includes abnormal battery usage status and normal battery usage status, the startup capability includes normal and abnormal, according to the load power demand, the startup capability of the battery, and the State the battery capacity and generate battery test results, including:

If the load power demand is less than the battery capacity, and the startup capability is normal, it is determined that the battery detection result is that the battery usage state is normal;

If the load demand is greater than or equal to the battery capacity, and/or the starting capability is abnormal, it is determined that the battery detection result is abnormal in the battery usage state.

In some embodiments, the start-up capability further includes charging and retesting, and the method further includes:

If the load power demand is less than the battery capacity, and the starting ability is re-testing after charging, the battery is tested after the battery is charged.

In some embodiments, the vehicle identification information includes VIN information and/or MMY information.

In a second aspect, embodiments of the present invention provide a battery detection device that is connected to a battery in a vehicle through an electrical connector, and the battery detection device is connected to an electronic control unit in the vehicle through a hardware communication interface Communication connection, the battery detection device includes:

The battery detection module is used to perform battery parameter detection on the vehicle and generate parameter detection results, where the parameter detection results include start-up capability and battery capacity;

A diagnosis module, configured to scan through the hardware communication interface to obtain a list of electronic control units of the vehicle;

The control module is connected to the battery detection module and the diagnosis module, and the control module includes:

At least one processor; and

A memory communicatively connected with the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the battery detection method as described above.

In some embodiments, the device further includes:

A display module, connected to the control module, for displaying a user interaction interface, so that the user can obtain a battery detection result based on the user interaction interface;

The wireless communication module is connected to the control module and is used to upload the battery detection result to the cloud for data backup.

In some embodiments, the device further includes:

The information input module is connected to the control module and is used to obtain the vehicle identification information of the vehicle input by the user.

The beneficial effect of the embodiment of the present invention is that, different from the prior art, the battery detection method provided by the embodiment of the present invention is applied to a battery detection device, and the battery detection device is connected to a battery in a vehicle through an electrical connector. Connection, and the battery detection device communicates with an electronic control unit in the vehicle through a hardware communication interface, the method includes: obtaining a list of electronic control units included in the vehicle according to the vehicle identification information of the vehicle; According to the electronic control unit list, determine the load power demand of the vehicle; detect the battery to determine the starting ability and battery capacity of the battery; according to the load power demand and the starting ability of the battery And the battery capacity to generate a battery test result. By intelligently determining the load power demand of the vehicle, detecting the starting ability and battery capacity of the battery of the vehicle, and determining the battery detection result, the embodiment of the present invention can improve the detection rate of the abnormal battery of the vehicle.

Description of the drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. The elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the attached drawings do not constitute a scale limitation.

FIG. 1 is a schematic structural diagram of a battery detection system provided by an embodiment of the present invention;

2 is a schematic flowchart of a battery detection method provided by an embodiment of the present invention;

FIG. 3 is a detailed flowchart of step S20 in FIG. 2;

FIG. 4 is a detailed flowchart of step S21 in FIG. 3;

FIG. 5 is a detailed flowchart of step S212 in FIG. 4;

FIG. 6 is a schematic diagram of a battery detection process provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a battery detection device provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another battery detection device provided by an embodiment of the present invention.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

In the embodiment of the present invention, the battery detection device may be a battery tester, a smart phone, a PDA (Personal Digital Assistant, PDA), a tablet computer, a smart watch, and other electronic devices capable of detecting the battery of a car.

Specifically, the embodiment of the present invention will be described in detail below by taking a battery tester as an example.

Please refer to FIG. 1, which is a schematic diagram of a battery detection system according to an embodiment of the present invention;

As shown in FIG. 1, the battery detection system 100 includes a vehicle 10 and a battery detection device 20 communicatively connected with the vehicle 10.

Among them, the vehicle 10 can be a motor vehicle of any model, such as a truck, a car, a bus, etc., and has an electronic control system composed of multiple electronic control units to coordinate and control the operation of the vehicle in accordance with the driver, etc. Commands and real-time monitoring of one or more vehicle parameters ensure that the vehicle 10 runs reliably and safely.

It is understandable that in vehicles of different models or models, the electronic control units are different according to their structural settings and differences in functions, resulting in different electronic control unit lists.

Among them, the various electronic control units in the vehicle are usually connected by a bus. Each electronic control unit uses a specific communication protocol. The electronic control unit will communicate on the corresponding car bus in accordance with its own communication protocol to avoid conflicts and improve efficiency. That is, the electronic control units that use the same communication protocol communicate on a kind of automobile bus, and one kind of automobile bus corresponds to a kind of communication protocol.

In order to facilitate daily inspection and maintenance, the vehicle 10 may also have at least one hardware communication interface, such as an OBD interface. The hardware communication interface and the vehicle 10 may be connected to one or more automobile buses, and are used to establish a communication connection with an external device, so that it can complete data interaction and other processes with the electronic control unit.

The battery testing device 20 can be any type of vehicle diagnostic product, including at least one electrical connector, the end of the electrical connector is a diagnostic connector that matches the hardware communication interface of the vehicle 10, and the electrical connector includes Kelvin. Connectors, low-frequency circular connectors, optical fiber connectors, rectangular connectors, printed circuit connectors, radio frequency connectors and other connectors. Preferably, the electrical connector in the embodiment of the present invention is a Kelvin connector.

In actual use, the battery testing device 20 establishes a physical communication connection with various vehicle buses in the vehicle through interface modules, such as diagnostic connectors and hardware communication interfaces, and loads appropriate or paired protocol configurations to achieve electronic control Data interaction between systems, such as sending inspection instructions or receiving inspection data.

In the embodiment of the present invention, the vehicle 10 further includes components such as tires, a steering wheel, a driving motor, etc., which belong to the prior art and will not be repeated here.

Please refer to FIG. 2 again, which is a schematic flowchart of a battery detection method according to an embodiment of the present invention;

As shown in Figure 2, the method is applied to a battery testing device, such as a battery tester, wherein the execution subject of the battery testing method is the processor of the battery testing device, and the battery testing device is connected through an electrical connector. Connecting with a battery in a vehicle, and the battery detection device is in communication with an electronic control unit in the vehicle through a hardware communication interface, and the method includes:

Step S10: Acquire a list of electronic control units included in the vehicle according to the vehicle identification information of the vehicle;

Wherein, the electronic control unit list includes multiple electronic control units. The electronic control unit (ECU) is used to control multiple components of the vehicle, such as engine, gearbox, car windows, and car doors. , Dashboard and other components.

Specifically, the battery detection device obtains the vehicle identification information of the vehicle, and obtains a list of electronic control units included in the vehicle based on the vehicle identification information of the vehicle, wherein the vehicle identification information of the vehicle includes VIN information And/or MMY information, where the VIN information is a VIN code (Vehicle Identitication Number, VIN), that is, a vehicle identification code, and the MMY information includes the manufacturer, model, and year (Make Model Year, MMY), which is understandable Yes, the electronic control units of vehicles of different manufacturers, models, or years may be different. Therefore, in order to obtain a list of electronic control units included in the vehicle, the embodiment of the present invention establishes the vehicle identification information of the vehicle in advance and The correspondence relationship of the electronic control unit list, after the battery detection device obtains the vehicle identification information of the vehicle, for example: by acquiring the vehicle identification information input by the user, according to the correspondence between the vehicle identification information of the vehicle and the electronic control unit list, The electronic control unit list corresponding to the vehicle identification information is determined, that is, the electronic control unit list of the vehicle is determined through the VIN information and/or MMY information.

Alternatively, after the battery detection device is connected to the vehicle through an interface module, the interface module is a hardware communication interface, for example, an OBD interface, and then obtains a list of electronic control units included in the vehicle. It can be understood that the vehicle The electronic control unit of the vehicle may be changed due to the replacement of vehicle components during the actual use of the vehicle. Therefore, the hardware communication interface of the battery detection device is communicatively connected with the electronic control unit in the vehicle to detect the electronic control of the vehicle Unit to form the list of electronic control units.

Through the pre-established correspondence between the vehicle identification information of the vehicle and the electronic control unit list, combined with the battery detection device detecting the electronic control unit of the vehicle through the hardware communication interface, the embodiment of the present invention can better determine what the vehicle contains List of electronic control units.

Step S20: Determine the load power demand of the vehicle according to the list of electronic control units;

It is understandable that different types and/or different numbers of electronic control units will lead to different battery capacities required by the vehicle. More electronic control units require larger battery capacity to start. Therefore, it needs to be based on the different electronic control unit lists. , To determine the different load power requirements.

Please refer to FIG. 3 again, which is a detailed flowchart of step S20 in FIG. 2;

As shown in Fig. 3, this step S20: determining the load power demand of the vehicle according to the electronic control unit list includes:

Step S21: Determine the power supply requirement of each electronic control unit type according to the type of each electronic control unit;

It is understandable that the windows, doors, and trunk of low-end cars are generally controlled mechanically. Therefore, the number of electronic control units, that is, ECUs, of low-end cars is relatively small, and there may be only 4-8, which is different. However, the engine, gearbox, instrumentation, multimedia, 360-degree panoramic view, sunroof, trunk and other components of high-end cars need electronic control units to control them. Therefore, the number of electronic control units in high-end cars is relatively large. There are as many as 50, and each type of electronic control unit is different, and its required power supply requirements are also different. Therefore, the embodiment of the present invention needs to determine the type of each electronic control unit according to the type of each electronic control unit. Power supply demand, so as to better determine the power supply demand of the vehicle, that is, the load power demand of the vehicle.

Specifically, by pre-establishing a power supply demand data table, the power supply demand data table stores the correspondence between each electronic control unit type and its corresponding power supply demand, wherein the pre-established power supply demand data table includes: obtaining vehicle information The battery capacity requirements of each electronic control unit of the vehicle corresponding to the vehicle identification information sent by the manufacturer, and/or, according to the actual minimum power demand of each electronic control unit of the vehicle corresponding to the vehicle identification information, a comprehensive calculation of each The power supply requirement of an electronic control unit, for example: the battery capacity requirement of each electronic control unit of the vehicle corresponding to the vehicle identification information sent by the manufacturer of the vehicle, and each electronic control unit of the vehicle corresponding to the vehicle identification information The actual minimum power demand of the control unit is averaged, and the average value is determined as the power supply demand of the electronic control unit type. In the embodiment of the present invention, the power supply demand is characterized by power consumption, which is equivalent to storing the type of the electronic control unit and its corresponding power consumption in the power supply demand data table.

Please refer to FIG. 4 again, which is a detailed flowchart of step S21 in FIG. 3;

As shown in Figure 4, this step S21: according to the type of each electronic control unit, determining the power supply requirement of each electronic control unit type includes:

Step S211: Determine the power consumption of each electronic control unit type according to the pre-established power supply demand data table;

Wherein, the power supply demand data table stores the type of the electronic control unit and its corresponding power consumption. By acquiring the type of the electronic control unit, the power consumption of the electronic control unit is determined based on the power supply demand data table.

Step S212: Determine the power supply requirement of the electronic control unit type according to the power consumption.

Wherein, the power consumption represents the power supply demand of the electronic control unit, and the power consumption of each electronic control unit type can be determined to reflect the power supply demand of each electronic control unit type.

Please refer to FIG. 5 again, which is a detailed flowchart of step S212 in FIG. 4;

As shown in FIG. 5, this step S212: determining the power supply requirement of the electronic control unit type according to the power consumption includes:

Step S2121: Determine the current consumption value of the electronic control unit type according to the power consumption of each electronic control unit type;

Specifically, assuming that the power consumption of a certain electronic control unit type is P, then according to the formula P=I*I*R, where W is the power consumption, I is the current consumption value, and R is the corresponding electronic control unit type It can be understood that each electronic control unit corresponds to one or more vehicle components, each vehicle component corresponds to a resistance, and the resistance corresponding to the electronic control unit is the sum of the resistances of all vehicle components.

By obtaining the resistance corresponding to each electronic control unit, and according to the power consumption of each electronic control unit type, the current consumption value of the electronic control unit type can be calculated.

In the embodiment of the present invention, the method further includes:

According to the performance differences of different manufacturers and/or different types of electronic control units, the power consumption is differentiated, for example: different manufacturers and/or different types of electronic control units are classified, and each manufacturer is determined Quotient and/or the priority of each type of electronic control unit, such as: determining the first priority, second priority, and third priority, and matching the power coefficient for each priority, for example, matching the first priority to the first priority A power factor, matching the second power factor to the second priority, and matching the third power factor to the third priority, wherein the first power factor is greater than the second power factor, and the second power factor is greater than the third power factor, By grading different manufacturers and/or different types of electronic control units, and determining the power coefficient corresponding to each priority, the present invention can eliminate the errors of different manufacturers and/or different types of electronic control units, and increase the calculation load. The accuracy of the power demand.

Step S2122: Calculate the amount of power consumed by the electronic control unit within a preset time according to the current consumption value;

Specifically, the preset time is artificially set, for example: the preset time is set to 30 minutes, and the current consumption value is used to calculate the amount of power that the electronic control unit needs to consume within the preset time, where it is assumed that The power value is W, then W=UIt, where U is the voltage value, I is the current consumption value, and t is the time. In the embodiment of the present invention, the voltage value U is obtained from the voltage change curve of the electronic control unit , The voltage change curve of the electronic control voltage is obtained through the hardware communication interface of the battery detection device.

Step S2123: Determine the amount of power consumed by the electronic control unit within a preset time as the power supply requirement of the electronic control unit type.

It is understandable that the electronic control unit needs a certain amount of time to start up. Therefore, by determining the power consumption value of any electronic control unit type within the preset time, it can directly reflect whether the current power can meet the corresponding electronic control unit type. According to the start-up requirements of the electronic control unit, the embodiment of the present invention can better reflect the power supply requirements of the electronic control unit type by calculating the power consumption value of the electronic control unit within a preset time.

Step S22: Determine the type of each electronic control unit and its corresponding quantity, calculate the power supply demand of all electronic control units, and determine the power supply demand of all electronic control units as the load power demand of the vehicle.

Specifically, by determining the power supply requirements of each type of electronic control unit and combining the number corresponding to the type of each electronic control unit, the power supply requirements of all electronic control units of a certain type of the vehicle are calculated, and then the power supply requirements of all types of electronic control units are calculated. All electronic control units are summed to determine the power supply demand of all electronic control units of the vehicle, and the power supply demand of all electronic control units is determined as the load power demand of the vehicle.

Step S30: detecting the battery to determine the starting ability and battery capacity of the battery;

Specifically, the battery detection device is communicatively connected with the battery of the vehicle through an electrical connector, and the detection of the battery to determine the starting ability and battery capacity of the battery includes:

Conduct conductance measurement and load measurement on the battery to determine the starting ability and battery capacity of the battery.

Specifically, the performing conductance measurement and load measurement on the battery to determine the starting ability and battery capacity of the battery includes:

The start-up capability of the battery is determined through conductance measurement. The conductance measurement is generally performed by intermittently applying a load to both ends of the battery. The general frequency is 100 Hz, the load is about 10 ohms, and a current of about 1.2 A is generated. Calculate the internal resistance of the battery based on the difference between the battery voltage and the battery voltage without load. Through the formula Rb=(V-Vr)/I, Rb is the internal resistance of the battery, V is the voltage at both ends of the battery when there is no load, Vr is the battery voltage tested under load, and I is the current tested under load. There is a corresponding relationship between the internal resistance and the starting ability of the battery, so the parameters of the starting ability of the battery are finally obtained through the conductivity test;

The battery capacity is determined through load measurement. The capacity state needs to be measured using load methods. The load test generally applies a load of about 10A-100A at both ends of the battery for a certain period of time (1ms-1s). When the battery voltage drop changes, the voltage drop rate is obtained. When a large load is applied to different battery capacities, the voltage drop has a certain linear relationship. Through the relationship between the battery drop and the battery capacity under different voltages, the current battery capacity value is finally estimated. Wherein, the unit of the battery capacity is ampere hour Ah.

Step S40: Generate a battery detection result according to the load power demand, the starting ability of the battery, and the battery capacity.

Specifically, the battery detection result includes abnormal battery usage status and normal battery usage status, and the startup capability includes normal and abnormal. According to the load power demand, the startup capability of the battery, and the battery capacity To generate battery test results, including:

If the load demand is greater than or equal to the battery capacity, and/or the starting ability is abnormal, it is determined that the battery detection result is abnormal in the battery usage state.

It is understandable that if the load power demand is less than the battery capacity, it is proved that the battery capacity can meet the normal operation of the electronic control unit, and the battery detection result is that the battery is in normal use; if the load power demand is greater than or equal to The battery capacity proves that the battery capacity cannot meet the normal operation of the electronic control unit at this time, and the battery detection result at this time is that the battery usage status is abnormal.

Wherein, the start-up capability includes normal, abnormal, and re-charge test. If the battery capacity is higher than the load power demand, the battery capacity is considered normal, that is, the battery test result is normal. If the battery capacity is lower than the load power demand, then The battery capacity is considered abnormal, that is, the battery test result is abnormal.

It is understandable that when only one of the starting ability and the battery capacity is abnormal, the battery result is considered abnormal; if the starting ability is charging and retesting, and the battery capacity is normal, it prompts to charge and retest; if the starting ability and battery capacity are both normal , The battery is considered normal.

In the embodiment of the present invention, the start-up capability further includes charging and retesting, and the method further includes:

In the case that the starting ability is the re-testing by charging, after the battery is charged, the battery is tested, which can further avoid false detection and improve the accuracy of battery detection.

Please refer to FIG. 6 again, which is a schematic diagram of a battery detection process provided by an embodiment of the present invention;

As shown in Figure 6, the battery detection process includes:

Step S61: Start the diagnosis function, scan the car system of the vehicle, and obtain a list of electronic control units;

Specifically, the automobile system of the vehicle is the electronic control unit of the vehicle. A list of electronic control units can be obtained by scanning the automobile system of the vehicle. The automobile system of the vehicle is scanned through the relevant scanning protocol. Including ISO15765, ISO11898, ISO13400, ISO9141, ISO14230, SAEJ1850, UDS, ISO13400, TP20, TP16 and other application layer commands, it can be understood that each car factory has its own custom data communication format, which corresponds to different Scan protocol.

Alternatively, the vehicle identification information of the vehicle may be obtained, the vehicle identification information includes VIN information and/or MMY information, and the electronic control unit list of the vehicle may be obtained by parsing the VIN information or the MMY information .

Step S62: According to the electronic control unit list, calculate the vehicle's battery capacity requirements to obtain the battery health capacity threshold;

Calculate the sum of the power supply requirements of all electronic control units through the pre-established power supply demand data table, use the sum of the power supply requirements of all electronic control units as the vehicle's battery capacity requirements, and determine the power supply requirements of all electronic control units Then is the battery health capacity threshold.

Step S63: Obtain the nominal battery capacity of the vehicle;

Specifically, the nominal battery capacity of the vehicle is obtained from the power supply demand data table through the vehicle identification information, where the vehicle identification information includes VIN information and/or MMY information, and the power supply demand data table Contains the vehicle identification information, a list of electronic control units, and a nominal battery capacity.

Step S64: Obtain a parameter detection result of the vehicle, where the parameter detection result includes the starting ability and the battery capacity;

Specifically, the start-up capability includes normal, abnormal, and re-charge test, and the battery capacity is the current battery capacity of the vehicle.

Step S65: According to the starting capacity of the vehicle and the remaining capacity of the battery, in combination with the nominal battery capacity and the battery health capacity threshold, a battery test result is generated;

If the battery health capacity threshold, that is, the load power demand is less than the battery capacity, and the startup capability is normal, it is determined that the battery detection result is that the battery usage status is normal;

If the battery health capacity threshold, that is, the load demand is greater than or equal to the battery capacity, and/or the startup capability is abnormal, it is determined that the battery detection result is abnormal in the battery usage state.

It is understandable that if the battery health capacity threshold is less than the battery capacity, it is proved that the battery capacity can meet the normal operation of the electronic control unit. At this time, the battery detection result is that the battery is in normal use; if the battery health capacity threshold is greater than If the battery capacity is equal to or equal to the battery capacity, it is proved that the battery capacity cannot meet the normal operation of the electronic control unit at this time, and the battery detection result at this time is that the battery usage status is abnormal.

Wherein, the start-up capability includes normal, abnormal, and re-charge test. If the battery capacity is higher than the load power demand, the battery capacity is considered normal, that is, the battery test result is normal. If the battery capacity is lower than the battery health capacity threshold, That is, the load power demand is considered to be abnormal in battery capacity, that is, the battery detection result is abnormal.

In the embodiment of the present invention, a battery detection method is provided, which is applied to a battery detection device, the battery detection device is connected to a battery in a vehicle through an electrical connector, and the battery detection device communicates with the battery through a hardware communication interface. The electronic control unit in the vehicle is in communication connection, and the method includes: obtaining a list of electronic control units included in the vehicle according to the vehicle identification information of the vehicle; and determining the load capacity of the vehicle according to the electronic control unit list Demand; detect the battery to determine the start-up capability and battery capacity of the battery; generate a battery test result according to the load power demand, the start-up capability of the battery, and the battery capacity. By intelligently determining the load power demand of the vehicle, detecting the starting ability and battery capacity of the battery of the vehicle, and determining the battery detection result, the embodiment of the present invention can improve the detection rate of the abnormal battery of the vehicle.

Please refer to FIG. 7, which is a schematic structural diagram of a battery detection device according to an embodiment of the present invention;

As shown in FIG. 7, the battery detection device 20 includes: an information input module 21, a battery detection module 22, a diagnosis module 23, an interface module 24, a control module 25, a storage module 26, a wireless communication module 27 and a display module 28.

The information input module 21 is connected to the control module 25, and is used to implement user-related interactive operations, such as: obtaining vehicle identification information of a vehicle input by the user. The vehicle identification information includes VIN information and MMY information. The VIN information is the VIN code, and the MMY information is the manufacturer, model, and year. Wherein, the information input module 21 is also used to obtain key parameters of the vehicle, and the key parameters include battery type, battery standard, battery starting ability, battery nominal capacity, pole position, battery nominal voltage, etc.;

The battery detection module 22, connected to the information input module 21 and the control module 25, is responsible for multiple functions of battery detection, including: battery voltage change curve collection, battery health detection, battery startup ability detection, battery remaining capacity detection, Starter capacity detection, generator load capacity detection. In the embodiment of the present invention, the battery detection module may be connected to the control module through a wired connection or a wireless connection, or the battery detection module may include a separate control module.

The diagnosis module 23 is connected to the control module 25 and the interface module 23, and is used to realize the software business logic control of the system scanning of various automobile models, including the diagnosis protocol, diagnosis text, diagnosis process, etc. required for various automobile scanning , And send the diagnosis protocol, diagnosis text, diagnosis process and other content to the interface module 24, so that the interface module scans the vehicle based on the diagnosis protocol, diagnosis text, diagnosis process and other content.

The interface module 24 is connected to the diagnostic module 23 and is used to communicate with the vehicle. The interface module can be a VCI module, which can be a data communication pipeline, and can also be set with related communication protocols to realize the scanning of the car system, and Get the electronic control units in the car, such as the type and number of ECUs.

The control module 25 is connected to the information input module 21, the battery detection module 22, the diagnosis module 23, the storage module 26, the wireless communication module 27, and the display module 28, and is used to control the battery detection module, the wireless communication module, the storage module, and the information The input module, the display module, and the diagnosis module realize the functions of automobile system scanning, battery failure detection, battery status detection, abnormal warning, and data interaction with the cloud. In the embodiment of the present invention, the control module is used to obtain the information input module The vehicle identification information is sent, and the electronic control unit included in the vehicle is obtained according to the vehicle identification information, and the load power demand of the vehicle is determined according to the list of electronic control units, and the battery detection module is obtained The sent starting capacity and battery capacity of the battery of the vehicle, according to the load power demand of the vehicle, the starting capacity of the battery, and the battery capacity, generate a battery detection result.

Specifically, the control module includes:

At least one processor; and

A memory communicatively connected with the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the battery detection method in the embodiment of the present invention.

The storage module 26, connected to the control module 25, is used to store scan protocols and battery test results, and is also used to store texts, scan protocols, and other related resources needed for car diagnosis, so as to realize the function of car system scanning; The storage module can continuously store test data, including vehicle startup characteristic curve, battery voltage change curve, battery health detection record, battery capacity calculation result, starter detection result, and generator detection result.

In the embodiment of the present invention, the storage module is also communicatively connected to the diagnostic module 23, and sends the scanning protocol to the diagnostic module 23, so that the diagnostic module 23 is based on the scanning protocol through the interface The module 23 scans the vehicle.

The wireless communication module 27, connected to the control module 25, is used to upload the battery test results to the cloud for data backup, or to obtain necessary data from the cloud, such as scanning protocol, vehicle data, etc., to achieve Mail function.

In the embodiment of the present invention, the wireless communication module 27 is also connected to the interface module 24 and the battery detection module 22, and is used to send a scanning protocol to the interface module, or to receive detection data sent by the battery detection module 22, for example ：Battery voltage change curve, battery health, battery starting capacity, battery remaining capacity, starter capacity, generator load capacity.

The display module 28, connected to the control module 25, is used to display a user interactive interface so that the user can obtain battery test results based on the user interactive interface, for example: used to display an interactive interface related to the user, to realize the workflow and test results , Information prompts and other content display, which is convenient for users to quickly understand the relevant steps.

In the embodiment of the present invention, by providing a battery detection device, the battery detection device is connected to the battery in the vehicle through an electrical connector, and the battery detection device is connected to the electronic control unit in the vehicle through a hardware communication interface. Communication connection, the battery detection device includes: a battery detection module, used to detect the battery parameters of the vehicle, and generate parameter detection results, the parameter detection results include starting ability and battery capacity; diagnostic module, used to communicate through the hardware Interface scanning to obtain a list of electronic control units of the vehicle; a control module connected to the battery detection module and the diagnostic module, the control module including: at least one processor; and a memory communicatively connected with the at least one processor; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the battery detection method in the embodiment of the present invention . By intelligently determining the load power demand of the vehicle, detecting the starting ability and battery capacity of the battery of the vehicle, and determining the battery detection result, the embodiment of the present invention can improve the detection rate of the abnormal battery of the vehicle.

Please refer to FIG. 8, which is a schematic structural diagram of another battery detection device according to an embodiment of the present invention;

As shown in FIG. 8, the battery detection device 80 includes but is not limited to: a radio frequency unit 81, a network module 82, an audio output unit 83, an input unit 84, a sensor 85, a display unit 86, a user input unit 87, an interface unit 88, and a memory 89, a processor 810, a power supply 811, and other components. The battery detection device also includes a camera. Those skilled in the art can understand that the structure of the battery detection device shown in FIG. 8 does not constitute a limitation on the battery detection device. The battery detection device may include more or less components than those shown in the figure, or a combination of certain components, Or different component arrangements. In the embodiment of the present invention, battery detection equipment includes, but is not limited to, a TV, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, and a pedometer.

The processor 810 is configured to obtain a list of electronic control units included in the vehicle according to the vehicle identification information of the vehicle; determine the load power demand of the vehicle according to the list of electronic control units; detect the battery To determine the starting ability and battery capacity of the battery; generate a battery detection result according to the load power demand, the starting ability of the battery, and the battery capacity.

In the embodiment of the present invention, on the one hand, a list of electronic control units contained in the vehicle is obtained according to the vehicle identification information of the vehicle; on the other hand, the load power demand of the vehicle is determined through the list of electronic control units Detecting the battery to determine the starting ability and battery capacity of the battery; According to the load power demand, the starting ability of the battery and the battery capacity, the battery detection result is generated, which can intelligently determine the vehicle The load power demand of the vehicle is detected, the starting ability and battery capacity of the battery of the vehicle are detected, and the battery detection result is determined. The embodiment of the present invention can improve the detection rate of the abnormal battery of the vehicle.

It should be understood that, in this embodiment of the present invention, the radio frequency unit 81 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving the downlink data from the base station, it is processed by the processor 810; in addition, Uplink data is sent to the base station. Generally, the radio frequency unit 81 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 81 can also communicate with the network and other devices through a wireless communication system.

The battery testing device 80 provides users with wireless broadband Internet access through the network module 82, such as helping users to send and receive emails, browse web pages, and access streaming media.

The audio output unit 83 can convert the audio data received by the radio frequency unit 81 or the network module 82 or stored in the memory 89 into an audio signal and output it as sound. Moreover, the audio output unit 83 may also provide audio output related to a specific function performed by the battery detection device 80 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 83 includes a speaker, a buzzer, a receiver, and the like.

The input unit 84 is used to receive audio or video signals. The input unit 84 may include a graphics processing unit (GPU) 841 and a microphone 842. The graphics processor 841 is configured to monitor the target of a still picture or video obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. The image is processed. The processed image frame can be displayed on the display unit 86. The image frames processed by the graphics processor 841 may be stored in the memory 89 (or other storage medium) or sent via the radio frequency unit 81 or the network module 82. The microphone 842 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 81 for output in the case of a telephone call mode.

The battery detection device 80 also includes at least one sensor 85, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 861 according to the brightness of the ambient light, and the proximity sensor can close the display panel 861 when the battery detection device 80 is moved to the ear. And/or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the attitude of the battery detection device (such as horizontal and vertical screen switching, related Games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 85 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, and thermometers , Infrared sensor, etc., I won’t repeat them here.

The display unit 86 is used to display information input by the user or information provided to the user. The display unit 86 may include a display panel 861, and the display panel 861 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

The user input unit 87 may be used to receive input numeric or character information, and generate key signal input related to user settings and function control of the battery detection device. Specifically, the user input unit 87 includes a touch panel 871 and other input devices 872. The touch panel 871, also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 871 or near the touch panel 871. operate). The touch panel 871 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 810, the command sent by the processor 810 is received and executed. In addition, the touch panel 871 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 871, the user input unit 87 may also include other input devices 872. Specifically, other input devices 872 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

Further, the touch panel 871 can cover the display panel 861. When the touch panel 871 detects a touch operation on or near it, it transmits it to the processor 810 to determine the type of the touch event, and then the processor 810 determines the type of the touch event according to the touch The type of event provides corresponding visual output on the display panel 861. Although in FIG. 8, the touch panel 871 and the display panel 861 are used as two independent components to realize the input and output functions of the battery detection device, but in some embodiments, the touch panel 871 and the display panel 861 can be combined. Integrate to realize the input and output functions of the battery detection device, and the specifics are not limited here.

The interface unit 88 is an interface for connecting an external device and the battery testing device 80. For example, the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc. The interface unit 88 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the battery testing device 80 or can be used to connect to the battery testing device 80 Transfer data between and external devices.

The memory 89 can be used to store software programs and various data. The memory 89 may mainly include a storage program area and a storage data area. The storage program area may store at least one application program 891 (such as a sound playback function, an image playback function, etc.) required by at least one function, an operating system 892, etc.; the storage data area may Store the data (such as audio data, phone book, etc.) created based on the use of the mobile phone. In addition, the memory 89 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The processor 810 is the control center of the battery testing equipment. It uses various interfaces and lines to connect the various parts of the entire battery testing equipment. It runs or executes software programs and/or modules stored in the memory 89, and calls and stores them in the memory 89. Execute the various functions and process data of the battery testing equipment, so as to monitor the battery testing equipment as a whole. The processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc., the modem The processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 810.

The battery detection device 80 may also include a power source 811 (such as a battery) for supplying power to various components. Preferably, the power source 811 may be logically connected to the processor 810 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.

In addition, the battery detection device 80 includes some functional modules not shown, which will not be repeated here.

Preferably, the embodiment of the present invention also provides a battery testing device, including a processor 810, a memory 89, a computer program stored on the memory 89 and running on the processor 810, and the computer program is executed by the processor 810 Each process of the foregoing battery detection method embodiment can be realized at a time, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.

The battery detection device 80 of the embodiment of the present invention exists in various forms, including but not limited to:

(1) Battery tester refers to an instrument for quickly testing multiple types of batteries (groups) such as lithium-ion batteries, nickel-metal hydride batteries, and polymer batteries. Such as: mobile phone battery tester, walkie-talkie battery tester, laptop battery tester, etc., which are widely used in assembly line production testing of various battery manufacturers. The common battery testers are: battery voltage internal resistance tester, finished battery comprehensive tester, Battery capacity tester, lithium battery protection board tester, battery voltage sorter.

(2) Mobile communication equipment: This type of equipment is characterized by mobile communication functions, and its main goal is to provide voice and data communications. Such electronic devices include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

(3) Mobile personal computer equipment: This type of equipment belongs to the category of personal computers, has calculation and processing functions, and generally also has mobile Internet features. Such electronic devices include: PDA, MID and UMPC devices, such as iPad.

(4) Portable entertainment equipment: This type of equipment can display and play video content, and generally also has mobile Internet features. Such devices include: video players, handheld game consoles, as well as smart toys and portable car navigation devices.

(5) Other electronic equipment with video playback function and Internet access function.

The embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by one or more processors, each process of the above-mentioned battery detection method embodiment is implemented and can be To achieve the same technical effect, in order to avoid repetition, I will not repeat them here. Wherein, the computer-readable storage medium, such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.

The above-described device or device embodiments are merely illustrative. The unit modules described as separate components may or may not be physically separated, and the components displayed as modular units may or may not be physical units. , Which can be located in one place, or can be distributed to multiple network module units. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

Through the description of the above implementation manners, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which may be a mobile terminal, a personal computer, a server, or a network device, etc.) execute the methods described in the various embodiments or some parts of the embodiments of the present invention.

Finally, it should be noted that the embodiments described above in conjunction with the drawings are only used to illustrate the technical solutions of the present invention, and the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative, not restrictive. Sexual; under the idea of the present invention, the above embodiments or the technical features of different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above For the sake of brevity, they are not provided in the details; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or Some of the technical features are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

A battery detection method, characterized in that it is applied to a battery detection device, the battery detection device is connected to a battery in a vehicle through an electrical connector, and the battery detection device communicates with the electronic control in the vehicle through a hardware communication interface Unit communication connection, the method includes:

Obtaining a list of electronic control units included in the vehicle according to the vehicle identification information of the vehicle;

Determine the load power demand of the vehicle according to the electronic control unit list;

Testing the battery to determine the starting ability and battery capacity of the battery;

Generate a battery detection result according to the load power demand, the starting ability of the battery, and the battery capacity.
The method according to claim 1, wherein the electronic control unit list includes the type and number of electronic control units, and the determining the load power demand of the vehicle according to the electronic control unit list comprises:

According to the type of each electronic control unit, determine the power supply requirement of each electronic control unit type;

Determine the type of each electronic control unit and its corresponding quantity, calculate the power supply demand of all electronic control units, and determine the power supply demand of all electronic control units as the load power demand of the vehicle.
The method according to claim 2, wherein the determining the power supply requirement of each electronic control unit type according to the type of each electronic control unit comprises:

Determine the power consumption of each electronic control unit type according to the pre-established power supply demand data table;

According to the power consumption, the power supply requirement of the electronic control unit type is determined.
The method according to claim 3, wherein the determining the power supply requirement of the electronic control unit type according to the power consumption comprises:

Determine the current consumption value of the electronic control unit type according to the power consumption of each electronic control unit type;

According to the current consumption value, calculating the power consumption value of the electronic control unit within a preset time;

The amount of power consumed by the electronic control unit within a preset time is determined as the power supply requirement of the electronic control unit type.
The method according to claim 1, wherein the battery detection result includes abnormal battery use state and normal battery use state, and the startup capability includes normal and abnormal, and the battery power requirement is based on the load power demand and the battery. The start-up capability and the battery capacity to generate battery test results include:

If the load power demand is less than the battery capacity, and the starting ability is normal, it is determined that the battery detection result is that the battery is in normal use state;

If the load demand is greater than or equal to the battery capacity, and/or the starting capability is abnormal, it is determined that the battery detection result is abnormal in the battery usage state.
The method according to claim 5, characterized in that the starting capability further comprises charging and retesting, and the method further comprises:

If the load power demand is less than the battery capacity, and the starting ability is re-testing after charging, the battery is tested after the battery is charged.
The method according to any one of claims 1 to 6, wherein the vehicle identification information includes VIN information and/or MMY information.
A battery detection device, characterized in that the battery detection device is connected to a battery in a vehicle through an electrical connector, and the battery detection device is communicatively connected to an electronic control unit in the vehicle through a hardware communication interface, the Battery testing equipment includes:

The battery detection module is used to perform battery parameter detection on the vehicle and generate parameter detection results, where the parameter detection results include start-up capability and battery capacity;

A diagnosis module, configured to scan through the hardware communication interface to obtain a list of electronic control units of the vehicle;

The control module is connected to the battery detection module and the diagnosis module, and the control module includes:

At least one processor; and

A memory communicatively connected with the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute any one of claims 1-7 Battery detection method.
The battery testing device according to claim 8, wherein the device further comprises:

A display module, connected to the control module, for displaying a user interaction interface, so that the user can obtain a battery detection result based on the user interaction interface;

The wireless communication module is connected to the control module and is used to upload the battery detection result to the cloud for data backup.
8. The battery testing device according to claim 8, wherein the battery testing device further comprises:

The information input module is connected to the control module and is used to obtain the vehicle identification information of the vehicle input by the user.