CN111624500B - Method for detecting vehicle generator and battery detector - Google Patents
Method for detecting vehicle generator and battery detector Download PDFInfo
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- CN111624500B CN111624500B CN202010663208.7A CN202010663208A CN111624500B CN 111624500 B CN111624500 B CN 111624500B CN 202010663208 A CN202010663208 A CN 202010663208A CN 111624500 B CN111624500 B CN 111624500B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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Abstract
The embodiment of the invention relates to the technical field of vehicle diagnosis and discloses a method for detecting a vehicle generator, which is applied to a battery detector, wherein the battery detector is connected with a battery of a vehicle through a Kelvin connector, and is in communication connection with the vehicle through an OBD interface of the vehicle.
Description
Technical Field
The embodiment of the invention relates to the technical field of vehicle diagnosis, in particular to a method for detecting a vehicle generator and a battery detector.
Background
The core that affects the start of the vehicle is the battery (also called accumulator), starter and generator, which when any one of the components is in question, will cause the vehicle to fail. The vehicle generator is a main power supply of the vehicle, and functions to supply power to all electric equipment (except a starter) and simultaneously charge a storage battery when an engine is in normal operation.
Whether the function of a vehicle generator is normal or not generally requires checking several capabilities of the battery: capability of outputting voltage, capability of outputting current, ripple control capability. Too high or too low voltage and current output indicate that the regulator of the generator is problematic; the excessive ripple generally indicates that the control diode of the generator is abnormal, which can lead to that the output signal can not ensure the normal operation of the electrical appliance. Because the generator is positioned in the vehicle, the generator is not easy to contact by a user, and the user generally judges whether the generator is good or bad by detecting the output voltage, the output current and the ripple of the battery through the vehicle battery detector.
In the process of implementing the embodiments of the present invention, the inventors found that at least the following problems exist in the above related art: the operation steps of the current vehicle battery detector on the market are complex, a user is required to manually control a switch of a load in a vehicle, so that when the battery detector is used for detecting a vehicle generator, more than ten steps are often required to be carried out, more time is spent for completing one-time generator test, the operation is not economical and intelligent enough, the use is inconvenient, and the situation that the user possibly fails to operate according to an operation flow completely, and the result measurement is abnormal exists.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention aims to provide a method for detecting a vehicle generator and a battery detector, which have higher detection result accuracy and simpler operation.
The aim of the embodiment of the invention is realized by the following technical scheme:
to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a method for detecting a vehicle generator, which is applied to a battery detector, wherein the battery detector is connected with a battery of a vehicle through a kelvin connector, and the battery detector is in communication connection with the vehicle through an OBD interface of the vehicle, and the method includes:
prompting a user to start an engine of the vehicle;
if the engine is detected to be started, a first control instruction is sent through the OBD interface to control the vehicle to close the vehicle load, and first measurement data of the battery are obtained;
sending a second control instruction through the OBD interface to control the vehicle to start the vehicle load, and obtaining second measurement data of the battery;
and detecting the state of a generator of the vehicle according to the first measurement data and the second measurement data.
In some embodiments, the first control command or the second control command corresponds to at least one vehicle load.
In some embodiments, the communication protocol of the first control command or the second control command is related to vehicle information of the vehicle.
In some embodiments, the first measurement data includes initial measurement data and idle measurement data.
In some embodiments, the first measurement data comprises initial measurement data, after the step of obtaining the first measurement data of the battery and before the step of sending a second control instruction over the OBD interface to control the vehicle to turn on the vehicle load, the method further comprising:
prompting a user to start an accelerator to increase the rotating speed of the engine, and acquiring no-load measurement data of the battery;
prompting a user to loosen an accelerator to reduce the engine speed;
wherein the step of detecting the state of the generator of the vehicle from the first measurement data and the second measurement data further comprises:
and detecting the state of the generator according to the first measurement data, the idle load measurement data and the second measurement data.
In some embodiments, after the step of prompting the user to activate a throttle to increase the engine speed, the method further comprises:
transmitting a control command for reading the engine speed to the vehicle;
receiving the engine speed fed back by the vehicle according to the control instruction;
judging whether the engine speed is greater than or equal to a first preset threshold value;
and if yes, executing the step of acquiring the no-load measurement data of the battery.
In some embodiments, after the step of prompting the user to release the throttle to reduce the engine speed, the method further comprises:
transmitting a control command for reading the engine speed to the vehicle;
receiving the engine speed fed back by the vehicle according to the control instruction;
judging whether the engine speed is less than a second preset threshold value or not;
and if yes, executing the step of sending a second control instruction through the OBD interface to control the vehicle to start the vehicle load.
In some embodiments, after the step of sending a second control instruction through the OBD interface to control the vehicle to turn on the vehicle load, and before the step of obtaining second measurement data of the battery, the method further comprises:
Prompting a user to start an accelerator to increase the engine speed;
transmitting a control command for reading the engine speed to the vehicle;
receiving the engine speed fed back by the vehicle according to the control instruction;
judging whether the engine speed is greater than or equal to a first preset threshold value;
if yes, executing the step of acquiring the second measurement data of the battery.
In some embodiments, after the step of obtaining second measurement data of the battery, the method further comprises:
and prompting a user to loosen a throttle to reduce the engine speed until the engine speed is less than a second preset threshold.
In some embodiments, after the step of prompting the user to start the engine of the vehicle, the method further comprises:
the voltage of the battery is monitored to detect whether the engine is started.
In order to solve the above technical problem, in a second aspect, an embodiment of the present invention provides a battery detector, where the battery detector is connected to a battery of a vehicle through a kelvin connector, and the battery detector is communicatively connected to the vehicle through an OBD interface of the vehicle, the battery detector includes:
A control module comprising at least one processor and a memory communicatively coupled to the at least one processor, wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method as described in the first aspect above.
In some embodiments, the battery detector further comprises:
the diagnosis module is connected with the control module and is used for receiving the control instruction issued by the control module, controlling the opening or closing of the vehicle load of the vehicle according to the control instruction and acquiring the measurement data of the battery.
In some embodiments, the diagnostic module of the battery detector is coupled to the OBD interface of the vehicle via a VCI module, wherein the VCI module is communicatively coupled to the vehicle according to a communication protocol and the control instructions.
In some embodiments, the battery detector further comprises:
and the VCI module is respectively connected with the diagnosis module and the OBD interface of the vehicle and is used for being in communication connection with the vehicle according to a communication protocol and the control instruction.
In some embodiments, the communication protocol is related to vehicle information of the vehicle.
In some embodiments, the battery detector further comprises:
and the information input module is connected with the control module and is used for acquiring the vehicle information input by the user.
In some embodiments, the battery detector further comprises:
and the battery detection module is connected with the control module and is used for determining the states of a battery, a starter and a generator of the vehicle.
In some embodiments, the battery detector further comprises:
and the wireless communication module is connected with the control module and is used for realizing data interaction between the cloud platform and the control module.
In some embodiments, the battery detector further comprises:
and the display module is connected with the control module and used for displaying the workflow, the detection result and the information prompt.
In some embodiments, the battery detector further comprises:
and the storage module is connected with the control module and used for storing the communication protocol, the measurement data and the detection result.
To solve the above technical problem, in a third aspect, an embodiment of the present invention further provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method according to the above first aspect.
To solve the above technical problem, in a fourth aspect, the present embodiment further provides a computer program product, where the computer program product includes a computer program stored on a computer readable storage medium, where the computer program includes program instructions, when executed by a computer, cause the computer to perform the method according to the first aspect.
Compared with the prior art, the invention has the beneficial effects that: in the method for detecting the vehicle generator, the battery detector is connected with the battery of the vehicle through the Kelvin connector, and the battery detector is in communication connection with the vehicle through the OBD interface of the vehicle, so that a user is firstly prompted to start an engine of the vehicle, when the engine is detected to be started, a first control instruction is sent through the OBD interface to control the vehicle to close the vehicle load, first measurement data of the battery are obtained, then a second control instruction is sent through the OBD interface to control the vehicle to start the vehicle load, second measurement data of the battery are obtained, finally, the state of the generator is detected according to the first measurement data and the second measurement data.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements/modules and steps, and in which the figures do not include the true to scale unless expressly indicated by the contrary reference numerals.
FIG. 1 is a schematic diagram of an application environment of a method for detecting a vehicle generator according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for detecting a vehicle generator according to a first embodiment of the present invention;
FIG. 3 is a flow chart of another method for detecting a vehicle generator provided in accordance with a first embodiment of the present invention;
FIG. 4 is a sub-flowchart of step 105 of the method of FIG. 3;
FIG. 5 is a sub-flowchart of step 106 of the method of FIG. 3;
FIG. 6 is a sub-flowchart of step 103 of the method of FIG. 2 and/or FIG. 3;
FIG. 7 is a flow chart of another method for detecting a vehicle generator provided in accordance with a first embodiment of the present invention;
FIG. 8 is a flow chart of another method for detecting a vehicle generator provided in accordance with a first embodiment of the present invention;
FIG. 9 is a signature of an engine start;
Fig. 10 is a schematic structural diagram of a battery detector according to a second embodiment of the present invention;
fig. 11 is a schematic structural diagram of another battery detector according to the second embodiment of the present invention;
fig. 12 is a schematic structural diagram of another battery detector according to the second embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It should be noted that, if not conflicting, the various features of the embodiments of the present invention may be combined with each other, which are all within the protection scope of the present application. In addition, while functional block division is performed in a device diagram and logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. Moreover, the words "first," "second," and the like as used herein do not limit the data and order of execution, but merely distinguish between identical or similar items that have substantially the same function and effect.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1, a schematic diagram of an application environment of a method for detecting a vehicle generator according to an embodiment of the present invention is shown, where the application environment includes: the vehicle 10 comprises a battery, and the battery detector 20, wherein the battery detector 20 is connected with the battery of the vehicle 10 through a Kelvin connector, and the battery detector 20 is in communication connection with the vehicle 10 through an OBD interface of the vehicle 10, and the communication connection mode can be wired connection or wireless connection.
The vehicle 10 is an electronic control system composed of a plurality of ECUs (Electronic Control Unit, electronic control units) for coordinating and controlling the vehicle in accordance with the operation instructions of the driver and the like, and for monitoring one or more vehicle parameters in real time, ensuring reliable and safe operation of the vehicle 10. It will be appreciated that in vehicles of different types or models, the number or types of ECUs provided are different depending on the structural arrangement and the function they take.
The various ECUs in the vehicle 10 are typically communicatively coupled via a bus. Each ECU uses a specific communication protocol. The ECU can communicate on the corresponding automobile bus according to the communication protocol used by the ECU to avoid collision and improve efficiency. That is, the ECUs using the same communication protocol communicate on one kind of automobile bus, one kind of automobile bus corresponding to one kind of communication protocol. Since the communication protocol is related to the vehicle type of the vehicle 10, the communication protocol of the vehicle 10 may be obtained by obtaining vehicle information of the vehicle 10, wherein the vehicle information includes VIN code (Vehicle Identification Number, vehicle identification number/frame number) and/or MMY code (Make, model, year, vehicle manufacturer, year and model).
The vehicle 10 may also have at least one hardware communication interface, such as an OBD (On-Board Diagnostics) interface, for ease of routine maintenance. The hardware communication interface and the vehicle 10 may be connected to one or more automobile buses for establishing communication with external devices to perform data interaction with the ECU, etc. For example, the vehicle 10 establishes a communication connection with the battery detector 20 through the OBD interface, and the battery detector 20 is able to acquire data information, such as vehicle information, from the vehicle 10.
The battery gauge 20 may be any type of vehicle diagnostic product including at least one electrical connector that terminates in a diagnostic interface that mates with a hardware communication interface of the vehicle 10, including Kelvin connectors, low frequency circular connectors, fiber optic connectors, rectangular connectors, printed circuit connectors, radio frequency connectors, and the like. Preferably, in an embodiment of the present invention, the battery of the vehicle is connected by a Kelvin connector.
In actual use, the measuring clamp of the battery detector 20 is first connected to the positive and negative poles of the vehicle battery, and the current clamp clamps the negative pole line of the vehicle battery. The battery detector 20 establishes physical communication connection with various automobile buses in the vehicle 10 through an interface module, such as a diagnosis interface and a hardware communication interface, and loads appropriate or matched protocol configuration to realize data interaction with an electronic control system, such as sending instructions or receiving data, so that the selection and the setting of the battery detector 20 from the vehicle 10 can be performed according to actual needs, and the limitation of the application scenario is not required.
In particular, embodiments of the present invention are further described below with reference to the accompanying drawings.
Example 1
The embodiment of the invention provides a method for detecting a vehicle generator, which is applied to a battery detector, wherein the battery detector can be the battery detector 20 described in the application scenario, the battery detector is connected with a battery of a vehicle through a Kelvin connector, and the battery detector is in communication connection with the vehicle through an OBD interface of the vehicle, please refer to fig. 2, which shows a flow of the method for detecting the vehicle generator provided by the embodiment of the invention, and the method comprises the following steps:
step 101: the user is prompted to start the engine of the vehicle.
Firstly, a user is prompted to start an engine of the vehicle in a mode of images, characters, voices, indicator lamps and the like, so that the vehicle enters a working state, and further detection is carried out on a battery, a starter and a generator of the vehicle.
Step 102: and if the engine is detected to be started, sending a first control instruction through the OBD interface to control the vehicle to close the vehicle load, and acquiring first measurement data of the battery.
After the engine start is detected, the battery detector is in communication connection with the vehicle through an OBD interface of the vehicle, sends a first control instruction capable of controlling the vehicle load to be closed to the vehicle, and simultaneously acquires first measurement data of a vehicle battery through the OBD interface. For a vehicle of a vehicle type which needs to step on at least one accelerator to enter a working state, after an engine is started, detected first measurement data only comprise initial measurement data of the vehicle, no-load measurement data of the vehicle are required to be obtained, and the vehicle can be detected after entering the working state by stepping on the accelerator, wherein the initial measurement data can be characteristic waveforms which can represent the working state of a battery, such as ripple waves of the battery, and particularly, a band-pass filter can be used for filtering out signals of 0-3000Hz, and secondary value changes of the ripple waves are read from the signal line to obtain ripple data. For the vehicle of the vehicle type which can directly enter the working state after starting the engine without stepping on the accelerator after intelligent management is carried out, after the engine is started, the first measurement data of the vehicle, which comprises initial measurement data and idle measurement data, can be directly detected, namely, the first measurement data comprises but is not limited to the initial measurement data and the idle measurement data.
Step 103: and sending a second control instruction through the OBD interface to control the vehicle to start the vehicle load, and acquiring second measurement data of the battery.
After the first measurement data are obtained, the battery detector is in communication connection with the vehicle through an OBD interface of the vehicle, and sends a second control instruction capable of controlling the opening of the vehicle load to the vehicle, and meanwhile, the second measurement data of the vehicle battery are obtained through the OBD interface. Wherein the second measurement data includes, but is not limited to, on-load measurement data.
In the embodiment of the invention, the vehicle load is at least one of high-current electric appliances such as an air conditioner, a headlight, an instrument and a sound in the vehicle. The first control command or the second control command corresponds to at least one vehicle load. And, a communication protocol of the first control command or the second control command is related to vehicle information of the vehicle. The vehicle information may be obtained by VIN code and/or by MMY code parsing, or may be input by a user.
Step 104: and detecting the state of a generator of the vehicle according to the first measurement data and the second measurement data.
After the first measurement data and the second measurement data are obtained, at least the on-load measurement data and the no-load measurement data of the current, the measurement data such as ripple waves and the like can be obtained, and whether the generator is in a normal working state or not can be determined by judging whether the measurement data are in a preset range or not.
In the existing detection method of the vehicle generator, a user is required to manually control the opening or closing of the vehicle load, and the operation of determining whether the vehicle load is opened or closed is manually input after the vehicle load is opened or closed, so that the detection method is different from the existing detection method of the vehicle generator.
In some embodiments, as described in step 102, there are cases where a part of vehicles of a vehicle type needs to be started by stepping on at least one accelerator, and the vehicle enters a working state, where the first measurement data includes initial measurement data, and between step 102 and step 103, please refer to fig. 3, which illustrates a flow of another method for detecting a vehicle generator according to an embodiment of the present invention, the method further includes:
step 105: and prompting a user to start an accelerator to increase the rotating speed of the engine, and acquiring no-load measurement data of the battery.
Firstly, after the first measurement data is obtained, that is, after the initial measurement data such as the ripple of the battery is obtained, a prompt message is sent to the user to prompt the user to start the accelerator (i.e. to pedal the accelerator) so as to increase the rotation speed of the engine, so that the vehicle enters a working state to obtain the no-load measurement data of the battery. Specifically, please refer to fig. 4, which illustrates a sub-flow of step 105, wherein step 105 includes:
step 105c: receiving the engine speed fed back by the vehicle according to the control instruction;
In the embodiment of the invention, whether the vehicle enters a working state is judged according to whether the rotating speed of the engine of the vehicle reaches a first preset threshold value, and no-load measurement data of the battery are acquired when the vehicle enters the working state, namely, when devices except the vehicle load of the vehicle can normally work.
For example, when the first preset threshold is 2000 revolutions, a hexadecimal OBD control command 01 0c is sent through a standard detection protocol SAE J1979 to read the rotational speed of the engine, after the vehicle receives the control command, the vehicle feeds back the command in the same format to feed back the rotational speed of the engine, specifically, the battery detector receives the 41 0c xx command to obtain the rotational speed of the engine, and judges whether the obtained rotational speed of the engine is higher than 2000 revolutions, so as to determine whether the user steps on the accelerator or not, and whether the vehicle enters a working state or not. Wherein the first xx represents 64 revolutions per unit, the second xx represents 1 revolution per four units, and the rotational speed of the engine can be obtained through calculation, for example, when 41 0C 01 04 is received, the rotational speed of the engine can be obtained to be 01 x 64+04/4=65 revolutions.
In this embodiment, for obtaining the engine speed information, for example, in steps 105b and 105c, after a reading instruction is sent once, the engine speed fed back by the vehicle may be obtained in real time; alternatively, the read command may be sent at a preset frequency and the engine speed received at the preset frequency.
By the mode, the battery detection equipment can automatically read the rotating speed of the engine, manual input of a user is not needed, and user operation is further simplified.
Step 106: the user is prompted to release the throttle to reduce the engine speed.
After the no-load measurement data of the vehicle are obtained, a prompt message is sent to a user to prompt the user to loosen an accelerator and reduce the rotating speed of an engine, so that after the vehicle exits from a working state, the vehicle jumps to step 103 to start the vehicle load to obtain second measurement data of the battery. Specifically, please refer to fig. 5, which illustrates a sub-flow of step 106, wherein step 106 includes:
Step 106d: judging whether the engine speed is less than a second preset threshold value or not; if yes, go to step 103.
In the embodiment of the invention, whether the vehicle exits the working state is judged according to whether the rotating speed of the engine of the vehicle is lower than a second preset threshold value, and after the vehicle exits the working state is determined, the vehicle load is opened to acquire second measurement data containing the loaded measurement data. Wherein the second preset threshold is less than the first preset threshold.
For example, the second preset threshold may be set to 1000 revolutions, and when it is detected that the rotational speed of the engine is lower than 1000 revolutions, it may be determined that the user releases the throttle and the vehicle exits the operating state. Specifically, the transmission and reading modes of the control command and the engine revolution number may be the modes described in the above step 105 and the embodiment shown in fig. 4, or may be set according to the actual vehicle situation, and need not be limited to the embodiment of the present invention.
In other embodiments, the step of measuring the engine revolution may be determined by detecting the variation ripple characteristic of the battery, if the step cannot be read by the OBD command, specifically, the engine is operated, and an overall shake signal is generated on the vehicle, and the shake signal is proportional to the engine revolution, so that the engine revolution is determined by detecting the shake signal. The accuracy of the judgment by the dither signal is not as good as that of the above-described preferable mode of reading by the OBD command.
Based on step 105 and step 106, the step 104 further includes: and detecting the state of the generator according to the first measurement data, the idle load measurement data and the second measurement data.
Further, after the first measurement data (initial measurement data), the no-load measurement data, and the second measurement data (on-load measurement data) are obtained, it may be determined whether the generator of the vehicle is in a normal operating state based on the measurement data. The no-load measurement data at least comprise no-load voltage and no-load current, and the load measurement data at least comprise load voltage and load current.
For example, typically, in a vehicle, the generator load capacity abnormality is determined when the load voltage is detected to be 0.5V lower than the no-load voltage; determining that the generator output voltage is too high when the on-load voltage and/or the off-load voltage is detected to be higher than 15V; determining that the generator output current is abnormal when the on-load current and/or the off-load current are detected to be out of the range of 10-50A; when the initial measurement data, such as ripple, is detected to be higher than 200mV, ripple anomalies of the generator are determined.
In comparison with the prior art that the engine revolution is judged by directly checking the dithering frequency of the engine through the voltage signal, the detection method provided by the embodiment of the invention is in communication connection with the vehicle through the OBD interface of the vehicle, and the accuracy of the detection result can be greatly improved by carrying out data interaction through the OBD instruction.
In some embodiments, please refer to fig. 6, which illustrates a sub-flow of step 103, the step 103 further includes:
step 103d: receiving the engine speed fed back by the vehicle according to the control instruction;
In the embodiment of the invention, after the vehicle is controlled to start the vehicle load through the second control instruction, prompt information is sent to the user to prompt the user to start the accelerator and increase the rotating speed of the engine, so that the vehicle enters a working state to acquire second measurement data of the battery, wherein the second measurement data is on-load measurement data. Specifically, whether the vehicle enters a working state is judged according to whether the rotating speed of an engine of the vehicle is higher than a first preset threshold value, and after the vehicle is determined to enter the working state, second measurement data containing loaded measurement data is obtained.
For example, the first preset threshold may be set to 2000 revolutions, and when it is detected that the rotational speed of the engine reaches 2000 revolutions, it may be determined that the user has started the throttle and the vehicle enters the working state. Specifically, the sending and reading modes of the second control command and the engine revolution number may be the modes described in the above-mentioned step 105 and step 106 and the embodiments shown in fig. 4 and fig. 5, or may be set according to the actual situation of the vehicle, and need not be limited by the embodiments of the present invention.
In some embodiments, please refer to fig. 7, which illustrates a flow chart of another method for detecting a vehicle generator according to an embodiment of the present invention, after the step 103, the method further includes:
step 107: and prompting a user to loosen a throttle to reduce the engine speed until the engine speed is less than a second preset threshold.
In the embodiment of the invention, after the second measurement data is detected, a prompt message is sent to prompt the user to loosen the throttle, the detection flow is ended, in order to confirm whether the user does loosen the throttle, the battery detector detects the engine revolution, when the engine revolution is determined to be smaller than a second preset threshold value, the user can be determined to loosen the throttle, the detection is ended, and further, a detection result is output. Specifically, the transmission and reading modes of the engine revolution number may be the modes described in the above-mentioned step 105, step 106 and step 103 and the embodiments shown in fig. 4, fig. 5 and fig. 6, or may be set according to the actual situation of the vehicle, and need not be limited to the embodiments of the present invention.
In some embodiments, please refer to fig. 8, which illustrates a flow chart of another method for detecting a vehicle generator according to an embodiment of the present invention, after the step 101, the method further includes:
step 108: the voltage of the battery is monitored to detect whether the engine is started.
In the embodiment of the present invention, in order to determine whether the user accurately starts the engine after prompting the user to start the engine, and/or whether the engine can be started normally, after executing step 101, the battery detector further needs to detect the voltage of the battery to determine whether the engine is started normally. Referring also to fig. 9, which is a waveform diagram illustrating a characteristic of engine start, when monitoring the voltage of the battery, if the voltage curve of the battery is shown in fig. 9, and/or the voltage of the battery is within the starting time range shown in fig. 9, the voltage can be suddenly reduced to be near the starting voltage shown in fig. 9 and/or the suddenly reduced amplitude is shown in fig. 9, it can be determined that the engine is started normally. For example, when the voltage drops by more than 0.5V within 1ms and continues to drop rapidly, it can be determined that the automobile is started.
In the existing detection method of the vehicle generator, whether the engine is started or not needs to be manually input by the user, unlike the existing detection method, whether the engine is started or not does not need to be manually input by the user in the mode described in the step 108. In reality, a user manually confirms whether the engine is started or not, or the user is required to compare the vehicle phenomenon with a specification to confirm whether the engine is started or not, and the situation that the engine is started or not due to insufficient user experience is possibly caused, so that the follow-up detection result is inaccurate. In the embodiment of the invention, the battery detector can automatically determine whether the engine is normally started, so that the operation steps of a user are simplified, the detection efficiency is improved, and the confirmation precision is improved.
Example two
Referring to fig. 10, which shows a hardware structure of a battery detector 200 provided by the embodiment of the present invention, the battery detector 200 may be an application scenario and the battery detector 20 shown in fig. 1, the battery detector 200 is connected with a battery B of a vehicle 10 through a kelvin connector 30, and the battery detector 200 is communicatively connected with the vehicle 10 through an OBD interface of the vehicle 10, and the battery detector 200 includes:
a control module 201, comprising: at least one processor 201a; and a memory 201b communicatively coupled to the at least one processor 201a, one processor 201a being illustrated in fig. 10. The memory 201b stores instructions executable by the at least one processor 201a to enable the at least one processor 201a to perform the method of detecting a vehicle generator described above with respect to fig. 2-8. The processor 201a and the memory 201b may be connected by a bus or otherwise, for example in fig. 10.
The memory 201b is a non-volatile computer readable storage medium, and may be used to store a non-volatile software program, a non-volatile computer executable program, and modules, such as program instructions/modules corresponding to the method of detecting a vehicle generator in the embodiments of the present application. The processor 201a executes various functional applications of the server and data processing by running nonvolatile software programs, instructions, and modules stored in the memory 201b, that is, implements the method of detecting a vehicle generator of the above-described method embodiment.
The memory 201b may include a storage program area that may store an operating system, at least one application program required for functions, and a storage data area; the storage data area may store data created from the use of the device that detects the vehicle generator, and the like. In addition, memory 201b may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 201b optionally includes memory located remotely from processor 201a, which may be connected to a device for detecting a vehicle generator through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 201b, which when executed by the one or more processors 201a, perform the method of detecting a vehicle generator in any of the method embodiments described above, for example, performing the method steps of fig. 2-8 described above.
In some embodiments, please refer to fig. 11 and 12, which illustrate hardware structures of another two battery detectors 200 provided in an embodiment of the present invention. The same point of fig. 11 and 12 is that the battery detector 200 further includes: the control module 201 can realize data interaction with the above modules, and comprises a diagnosis module 202, an information input module 204, a battery detection module 205, a wireless communication module 206, a display module 207 and a storage module 208.
The diagnostic module 202 is connected to the control module 201, and is configured to receive a control instruction issued by the control module 201, control the vehicle 10 to turn on or off the vehicle load according to the control instruction, and obtain measurement data of the battery. The diagnostic module 202 includes contents such as a diagnostic protocol, a diagnostic text, a diagnostic procedure, etc. that are required for scanning and detecting the vehicle, and the contents may be stored in the storage module 208, and the diagnostic module 202 retrieves from the storage module 208 when required.
The difference between fig. 11 and fig. 12 is that:
in the battery detector 200 shown in fig. 11, the battery detector 200 does not include the VCI module 203 (the VCI module 203 is not disposed in the battery detector 200), and the diagnostic module 202 of the battery detector 200 is connected to the OBD interface of the vehicle 10 through an external VCI module 203, where the VCI module 203 is communicatively connected to the vehicle 10 according to a communication protocol and the control command. The communication protocol is associated with vehicle information of the vehicle.
In the battery detector 200 shown in fig. 12, the battery detector 200 includes a VCI module 203, and the VCI module 203 is respectively connected to the diagnostic module 202 and the OBD interface of the vehicle 10, for communication connection with the vehicle 10 according to a communication protocol and the control command. The communication protocol is associated with vehicle information of the vehicle.
The control module 201 controls various devices and states in the vehicle through the diagnosis module 202 and the VCI (Vehicle Communication Interface, virtual path identifier) module 203, and is different from the prior art, and can also control the load of the vehicle, so that the flow and the steps are simpler to detect the generator.
The information input module 204 is connected to the control module 201, and is configured to obtain the vehicle information input by the user, where the information input module 204 is configured to implement an interactive operation related to the user, and may be configured to input information related to battery detection, such as battery test related data, MMY information, VIN code information, and the like.
The battery detection module 205 is coupled to the control module 201 for determining the status of the battery, starter, and generator of the vehicle 10. Wherein the battery detection module 205 is connected to the battery B of the vehicle 10 through the kelvin connector 30. Specifically, the battery detection module 205 can continuously obtain the measurement data of the battery voltage through the control module 201, determine the health degree of the battery, the starting capability of the battery, the remaining capacity of the battery, the carrying capability of the generator, the starting capability of the starter, and the like, and further, can derive the change curve of the voltage of the battery. The battery detection module 205 may be connected to the control module 201 by wire or wirelessly, and further, a separate control module may be included in the battery detection module 205.
The wireless communication module 206 is connected to the control module 201, and is configured to implement data interaction between the cloud platform and the control module 201, so that on one hand, a test result obtained from the control module 201 may be uploaded to the cloud platform to perform data backup, and on the other hand, necessary data, for example, a communication protocol of a vehicle, may be obtained from the cloud platform.
The display module 207 is connected to the control module 201, and is used for implementing the presentation of a workflow, a detection result and an information prompt, where the engineering flow may be a content for providing information input to a user. The display module 207 may display a user interaction interface, based on which a user obtains the workflow, the detection result, and the information prompt.
The storage module 208 is connected to the control module 201, and is configured to store the communication protocol, the measurement data, and the detection result. The measurement data and the detection result include, but are not limited to, a starting characteristic curve of the vehicle, a battery voltage change curve, a battery health detection record, a battery capacity calculation result, a starter detection result, a generator detection result and the like.
When the battery detector 200 according to the embodiment of the present invention works, first, the control module 201 obtains key parameters required for detecting and measuring the generator and the battery in the vehicle, such as the battery type, the battery standard, the battery starting capability, the battery nominal capacity, the pole position, the battery nominal voltage, etc., through the information input module 204, or obtains and analyzes the VIN code and the MMY code of the vehicle through the diagnosis module 202 to obtain the key parameters. The control module 201 then controls the diagnostic module 202 to scan the vehicle 10 via the VCI module 203 according to a communication protocol (e.g., ISO15765, ISO11898, ISO13400, ISO9141, ISO14230, SAE J1850, UDS, ISO13400, TP20, TP16, etc., specifically determined by the model of the vehicle) to obtain measurement data. The control module 201 combines with the battery detection module 205 to finally detect the state of the generator, such as the output voltage capability, the output current capability, the ripple range detection, etc., of the generator according to the above measurement data by the method for detecting a vehicle generator according to the above embodiment, and determines whether the generator is good or bad according to the detection result.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. Technical details not described in detail in this embodiment may be found in the methods provided in the embodiments of the present application.
Embodiments of the present invention also provide a non-transitory computer-readable storage medium storing computer-executable instructions which are executed by one or more processors, e.g., perform the method steps of fig. 2-8 described above, implementing the functions of the modules in fig. 10-12.
Embodiments of the present invention also provide a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the method of detecting a vehicle generator in any of the method embodiments described above, for example, to perform the method steps of fig. 2 to 8 described above, implementing the functions of the modules in fig. 10 to 12.
The embodiment of the invention provides a method for detecting a vehicle generator, which is applied to a battery detector, wherein the battery detector is connected with a battery of a vehicle through a Kelvin connector, and is in communication connection with the vehicle through an OBD interface of the vehicle.
It should be noted that the above-described apparatus embodiments are merely illustrative, and the units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus a general purpose hardware platform, or may be implemented by hardware. Those skilled in the art will appreciate that all or part of the processes implementing the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and where the program may include processes implementing the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), or the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (18)
1. A method of detecting a vehicle generator, characterized by being applied to a battery detector, the battery detector being connected to a battery of a vehicle through a kelvin connector, and the battery detector being communicatively connected to the vehicle through an OBD interface of the vehicle, the method comprising:
prompting a user to start an engine of the vehicle;
Monitoring the voltage of the battery to detect whether the engine is started;
after the engine is detected to be started, a first control instruction capable of controlling the closing of a vehicle load is sent to the vehicle through the OBD interface so as to control the vehicle to close the vehicle load, and first measurement data of the battery are obtained, wherein the first measurement data comprise idle measurement data;
prompting a user to start an accelerator, and acquiring no-load measurement data of the battery after the rotation speed of the engine is increased;
prompting a user to loosen an accelerator, after the rotating speed of the engine is reduced, sending a second control instruction capable of controlling the opening of a vehicle load to the vehicle through the OBD interface so as to control the vehicle to open the vehicle load, and acquiring second measurement data of the battery;
and detecting the state of a generator of the vehicle according to the idle load measurement data and the second measurement data.
2. The method of claim 1, wherein the first control command or the second control command corresponds to at least one vehicle load.
3. The method according to any one of claims 1 or 2, wherein the communication protocol of the first control instruction or the second control instruction is related to vehicle information of the vehicle.
4. The method of claim 1, wherein the first measurement data further comprises initial measurement data.
5. The method according to claim 1, wherein the method further comprises:
transmitting a control command for reading the engine speed to the vehicle;
receiving the engine speed fed back by the vehicle according to the control instruction;
judging whether the engine speed is greater than or equal to a first preset threshold value;
and if yes, executing the step of acquiring the no-load measurement data of the battery.
6. The method according to claim 1, wherein the method further comprises:
transmitting a control command for reading the engine speed to the vehicle;
receiving the engine speed fed back by the vehicle according to the control instruction;
judging whether the engine speed is less than a second preset threshold value or not;
and if yes, executing the step of sending a second control instruction capable of controlling the opening of the vehicle load to the vehicle through the OBD interface so as to control the vehicle to open the vehicle load.
7. The method according to claim 1, wherein the method further comprises:
prompting a user to start an accelerator to increase the engine speed;
Transmitting a control command for reading the engine speed to the vehicle;
receiving the engine speed fed back by the vehicle according to the control instruction;
judging whether the engine speed is greater than or equal to a first preset threshold value;
if yes, executing the step of acquiring the second measurement data of the battery.
8. The method of claim 1, wherein after the step of obtaining second measurement data for the battery, the method further comprises:
and prompting a user to loosen a throttle to reduce the engine speed until the engine speed is less than a second preset threshold.
9. A battery gauge, wherein the battery gauge is connected with a battery of a vehicle through a kelvin connector, and the battery gauge is communicatively connected with the vehicle through an OBD interface of the vehicle, the battery gauge comprising:
a control module comprising at least one processor and a memory communicatively coupled to the at least one processor, wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-8.
10. The battery detector of claim 9, wherein the battery detector further comprises:
the diagnosis module is connected with the control module and is used for receiving the control instruction issued by the control module, controlling the opening or closing of the vehicle load of the vehicle according to the control instruction and acquiring the measurement data of the battery.
11. The battery tester of claim 10 wherein,
the diagnosis module of the battery detector is connected with the OBD interface of the vehicle through a VCI module, wherein the VCI module is in communication connection with the vehicle according to a communication protocol and the control instruction.
12. The battery detector of claim 10, wherein the battery detector further comprises:
and the VCI module is respectively connected with the diagnosis module and the OBD interface of the vehicle and is used for being in communication connection with the vehicle according to a communication protocol and the control instruction.
13. The battery tester as claimed in any one of claims 11 or 12, wherein,
the communication protocol is associated with vehicle information of the vehicle.
14. The battery detector of claim 13, wherein the battery detector further comprises:
And the information input module is connected with the control module and is used for acquiring the vehicle information input by the user.
15. The battery detector according to any one of claims 11 or 12, characterized in that the battery detector further comprises:
and the battery detection module is connected with the control module and is used for determining the states of a battery, a starter and a generator of the vehicle.
16. The battery detector according to any one of claims 11 or 12, characterized in that the battery detector further comprises:
and the wireless communication module is connected with the control module and is used for realizing data interaction between the cloud platform and the control module.
17. The battery detector according to any one of claims 11 or 12, characterized in that the battery detector further comprises:
and the display module is connected with the control module and used for displaying the workflow, the detection result and the information prompt.
18. The battery detector according to any one of claims 11 or 12, characterized in that the battery detector further comprises:
and the storage module is connected with the control module and used for storing the communication protocol, the measurement data and the detection result.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010663208.7A CN111624500B (en) | 2020-07-10 | 2020-07-10 | Method for detecting vehicle generator and battery detector |
| PCT/CN2021/104097 WO2022007710A1 (en) | 2020-07-10 | 2021-07-01 | Method for testing generator of vehicle, and battery tester |
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| CN202010663208.7A CN111624500B (en) | 2020-07-10 | 2020-07-10 | Method for detecting vehicle generator and battery detector |
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