CN116643200A - Vehicle power supply test system, method, device, equipment and storage medium - Google Patents
Vehicle power supply test system, method, device, equipment and storage medium Download PDFInfo
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- G—PHYSICS
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- 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
- G01R31/40—Testing power supplies
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Abstract
The invention relates to a vehicle power supply test system, a method, a device, equipment and a storage medium, which comprises a test cabinet, an upper computer, a battery management module and a controller to be tested, wherein the test cabinet is connected with the upper computer and the battery management module, the battery management module is connected with the controller to be tested through a plurality of interfaces, the test cabinet is used for testing the voltage and current collection precision of the battery management module and comprises a voltage collection board card and a current collection board card, the voltage collection board card is used for collecting the voltage value of the controller to be tested, the current collection board card is used for collecting the current value of the controller to be tested, the upper computer is used for obtaining the states of a plurality of interfaces of the battery management module, checking the voltage and current information collected by the test cabinet, and the battery management module is used for controlling the voltage and current of a plurality of interfaces of the accessed controller to be tested. According to the invention, the voltage and current acquisition accuracy is verified by adding the voltage acquisition board card and the current acquisition board card, and the interface is tested, so that the power consumption requirement of each to-be-tested controller is met.
Description
Technical Field
The present invention relates to the field of battery management technologies, and in particular, to a vehicle power supply testing system, a vehicle power supply testing method, a vehicle power supply testing device, a vehicle power supply testing apparatus, a vehicle power supply testing device, a vehicle power supply testing apparatus, and a vehicle power supply storage medium.
Background
With the development of new energy electric vehicles, the power supply source of low-voltage electric appliances of passenger vehicles is changed from fuel oil conversion power supply to power battery conversion power supply, and along with the higher and higher electrification degree of the new energy electric vehicles, controllers, sensors and actuators on the whole vehicles are also more and more refined. The fuse and the relay in the traditional distribution box have the disadvantages of controlling a plurality of electric appliances, poor circuit breaking current precision and the like, and can not meet the power management requirement of the low-voltage electric appliances of the whole vehicle.
At present, due to the characteristics of a self-charging fuse, the VIU (battery management unit) can realize intelligent requirements of self-recovery, control interface on-off, voltage and current measurement, fault diagnosis and the like, and becomes the first choice of secondary power distribution of a new energy electric automobile. However, although the VIU can realize fault diagnosis, fault protection and self-recovery functions such as short circuit and circuit break, the accuracy of measuring voltage and current is uncertain, so that inaccurate voltage and current information is caused, other tests and diagnoses are affected, and the power consumption requirement of the low-voltage power supply of the whole vehicle cannot be met.
Disclosure of Invention
One of the purposes of the invention is to provide a vehicle power supply test system, which is used for solving the problem that the accuracy of measuring voltage and current in the prior art has uncertainty, so that inaccurate voltage and current information affects other tests and diagnoses; second, a vehicle power supply testing method is provided; a third object is to provide a vehicle power supply testing device, a fourth object is to provide an electronic apparatus, and a fifth object is to provide a readable storage medium.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
in a first aspect of the invention, there is provided a vehicle power supply testing system comprising: the system comprises a test cabinet, an upper computer, a battery management module and a controller to be tested, wherein the test cabinet is connected with the upper computer and the battery management module, and the battery management module is connected with the controller to be tested through a plurality of interfaces;
the test cabinet is used for testing the voltage and current acquisition precision of the battery management module and comprises a voltage acquisition board card and a current acquisition board card, wherein the voltage acquisition board card is used for acquiring the voltage value of the controller to be tested, and the current acquisition board card is used for acquiring the current value of the controller to be tested;
the upper computer is used for acquiring a plurality of interface states of the battery management module and testing the controller to be tested according to the voltage and current information acquired by the test cabinet;
the battery management module is used for controlling the voltage and the current of a plurality of interfaces of the connected controller to be tested.
Optionally, the upper computer is further configured to determine whether a part of interfaces of the power management module are on or off according to a plurality of interface states of the power management module;
the upper computer is also used for judging whether the voltage value acquired by the voltage acquisition board card is consistent with the target voltage value, and if the voltage difference value is smaller than a first preset threshold value, the voltage test is passed; and judging whether the current value acquired by the current acquisition board card is consistent with the target current value, and if the current difference value is smaller than a second preset threshold value, passing the current test.
Optionally, the battery management module is further configured to identify a sleep state of the to-be-tested controller, and perform an interface overvoltage test, a reset test and an interface power-off test on the tested interface under a condition of not sleeping, where the interface overvoltage test includes controlling a voltage of the tested interface within a preset duration to be greater than a preset overvoltage threshold, and the interface power-off test includes controlling the tested interface to be permanently powered off if the interface overvoltage test of the tested interface passes and the reset test is performed for a preset number of times, and detecting that the tested interface leaks.
Optionally, the upper computer is further configured to obtain an overvoltage test state, a test time and a reset test number sent by the battery management module, and obtain a leakage state of the tested interface sent by the battery management module.
In a second aspect of the present invention, there is provided a vehicle power supply testing method, the method comprising:
collecting a voltage value and a current value of an interface connected with a controller to be tested, and testing the voltage and current collection precision of the tested interface;
if the voltage test and the current test are passed, identifying the dormant state of the controller to be tested;
and under the condition that the controller to be tested is not dormant, performing interface overvoltage test, reset test and interface power-off test on the tested interface.
In a third aspect of the present invention, there is provided a vehicle power supply testing apparatus comprising:
the first testing module is used for collecting the voltage value and the current value of the interface connected with the controller to be tested and testing the voltage and current collection precision of the interface to be tested;
the identification state module is used for identifying the dormant state of the controller to be tested if the voltage value and the current value pass the test;
and the second test module is used for carrying out interface overvoltage test, reset test and interface power-off test on the tested interface under the condition that the controller to be tested is not dormant.
In yet another aspect of the present invention, there is also provided an electronic device including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;
a memory for storing a computer program;
and the processor is used for realizing any one of the vehicle power supply testing methods when executing the program stored in the memory.
In yet another aspect of the present invention, there is also provided a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform any of the above-described vehicle power supply testing methods.
The invention has the beneficial effects that:
the vehicle power supply testing system comprises a testing cabinet, an upper computer, a battery management module and a to-be-tested controller, wherein the testing cabinet is connected with the upper computer and the battery management module, the battery management module is connected with the to-be-tested controller through a plurality of interfaces, the testing cabinet is used for testing the voltage and current collection precision of the battery management module and comprises a voltage collection board card and a current collection board card, the voltage collection board card is used for collecting the voltage value of the to-be-tested controller, the current collection board card is used for collecting the current value of the to-be-tested controller, the upper computer is used for obtaining a plurality of interface states of the battery management module, checking the voltage and current information collected by the testing cabinet, and the battery management module is used for controlling the voltage and current of a plurality of interfaces of the accessed to-be-tested controller. According to the embodiment of the invention, the voltage acquisition board card and the current acquisition board card are newly added in the test cabinet to verify the voltage and current acquisition precision of the battery management module, the battery management module is connected with the interface of the controller to be tested, the interface is tested according to accurate voltage and current detection, and the upper computer manages and controls the battery management module to supply power to most of electric appliances of the whole vehicle, so that the battery management module is taken as a main body, the hardware interface test is controlled, and the power consumption requirements of each controller to be tested are met.
Drawings
FIG. 1 is a schematic diagram of a vehicle power test system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a vehicle power test system according to an embodiment of the present invention;
FIG. 3 is a flow chart of steps of a vehicle power test method provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a vehicle power supply testing device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
Further advantages and effects of the present invention will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
Under the guidance of carbon peak and carbon neutralization policies, new energy electric vehicles are vigorously developed, the power supply source of low-voltage electric appliances of passenger vehicles is changed from fuel oil conversion power supply to power battery conversion power supply, and along with the higher and higher electrified development degree of the new energy electric vehicles, controllers, sensors and actuators on the whole vehicles are also more and more refined. The fuse and the relay in the traditional distribution box have the disadvantages of controlling a plurality of electric appliances, poor circuit breaking current precision and the like, the power management requirement of the whole vehicle low-voltage electric appliance cannot be met, and the VIU (battery management unit) can realize the intelligent requirements of self-recovery, interface on-off control, voltage and current measurement, fault diagnosis and the like due to the self-charging of the fuse, so that the intelligent power distribution box becomes the first choice of the secondary power distribution of the new energy electric vehicle.
In order to meet testing requirements, intervening development and testing links in advance, the embodiment of the invention provides a vehicle power supply testing system which can be applied to real vehicle VIU power supply and bench VIU power supply, and the vehicle power supply testing system is specifically described below.
In the embodiment of the invention, a voltage acquisition module and a current acquisition module are newly added on the basis of an original test bench, the voltage acquisition board and the current acquisition board are adopted for acquiring the voltage value of a controller to be tested, the current acquisition board is used for acquiring the current value of the controller to be tested, specifically, the voltage acquisition range is 0-24V, the board measurement precision is designed to be 0.1V, the current acquisition range is 2-30A, and the board measurement precision is designed to be 0.1A.
It should be noted that, the test environment is prepared and the test object, the test auxiliary tool, the power supply, the data acquisition equipment and the like are built before the test, so that the stand is ensured to realize the basic vehicle use function: powering up and down, charging, locking, etc.
The test cabinet in this embodiment may be a HiL (Hardware-in-the-Loop) test cabinet, where the Hardware refers to a physical controller, such as a VCU, MCU, BMS, ADAS physical controller, and the ring refers to a process that the controller receives a control instruction sent by a controlled object, obtains feedback of the controlled object, and sends the control instruction again, and this test closed Loop is called HiL test, and is a means for performing comprehensive and deep functional test and fault test on a new energy automobile controller, and assisting engineers in analysis verification and fault reproduction of test results, and improving test verification and analysis. HiL test cabinets are intended to simulate real controlled objects as realistically as possible to effectively "fool" the controller so that the controller is controlling a real controlled object for it.
The test cabinet is used for testing the voltage and current collection precision of the battery management module and comprises a voltage collection board card and a current collection board card, wherein the voltage collection board card is used for collecting the voltage value of the controller to be tested, and the current collection board card is used for collecting the current value of the controller to be tested.
In the embodiment of the invention, a battery management module (VIU) is used as a secondary power distribution party, and most of electric appliances of the whole vehicle are powered, fault diagnosed and protected by managing and controlling a Mosfet (field effect transistor), an HSD (high side drive) and an Efuse (electronic fuse). The reset function of the interface can be realized due to the self-recovery characteristic of the Efuse, and the power consumption requirement of each electrical appliance is realized by taking the VIU as a main body and controlling the hardware interface.
Optionally, the test cabinet further includes a high-precision multimeter for verifying voltage and current collection precision of the battery management module and each controller, and the high-precision multimeter is used for testing static current, and the testing precision is required to be 0.1mA.
The upper computer is used for acquiring a plurality of interface states of the battery management module, and testing the controller to be tested according to the voltage and current information acquired by the test cabinet.
In the embodiment of the invention, the state of each interface of the VIU is obtained through the upper computer, whether a part of interfaces are connected and disconnected according to expectations is checked, whether the interfaces are on or off can be judged by checking whether the controllers mounted on the interfaces have sending data or have voltage or current, and the upper computer also performs voltage power supply test on the controllers to be tested according to the voltage and current information collected by the test cabinet. Specifically, checking whether the voltage acquired by the voltage acquisition board card is consistent with a target voltage value sent by the VIU interface, wherein an error is within 5% and the test is passed; checking whether the current acquired by the current acquisition board card is consistent with the target current value sent by the VIU interface, and determining that the error is within 5% and the test is passed.
The battery management module is used for controlling the voltage and the current of a plurality of interfaces of the connected controller to be tested.
It should be noted that, the battery management module is provided with a plurality of interfaces for controlling the voltage and current of the interfaces of the connected to-be-tested controller, and can supply power to the interface where the charging related controller is located for 500ms for 16V to perform the electric test, and can load the interface where the charging related controller is located to enable the electric leakage of the interface to be above a preset threshold for 60s for performing the electric leakage test. Referring to fig. 2, after the battery management module finishes charging, data acquired by the data acquisition equipment in real time is stopped, the relay shown in fig. 2 is controlled to be completely disconnected by the upper computer, only the tested controller is left in a power supply loop, and the card value of the high-precision current acquisition board is read.
Further, in the vehicle power supply test system provided by the embodiment of the invention, the upper computer is further used for judging whether part of interfaces of the power supply management module are connected or disconnected according to the states of the interfaces of the power supply management module.
Specifically, the vehicle power supply test system checks the states of all interfaces of the VIU through the upper computer, and whether to switch on part of the interfaces and switch off part of the interfaces according to expectations, and can also judge whether the interfaces are on or off by checking whether the controllers mounted on the interfaces have data transmission, voltage and current.
The upper computer is also used for judging whether the voltage value acquired by the voltage acquisition board card is consistent with the target voltage value, and if the voltage difference value is smaller than a first preset threshold value, the voltage test is passed; and judging whether the current value acquired by the current acquisition board card is consistent with the target current value, and if the current difference value is smaller than a second preset threshold value, passing the current test.
For example, checking whether the voltage acquired by the voltage acquisition board card is consistent with the target voltage value sent by the VIU interface, calculating a difference value between the voltage value and the target voltage value, and if the voltage difference value is smaller than a first preset threshold, the voltage test is passed, wherein the first preset threshold is a voltage value preset according to test requirements so as to control the error of the acquired voltage value within 5%, and the embodiment is not particularly limited; checking whether the current collected by the current collection board card is consistent with the target current value sent by the VIU interface, calculating a difference value between the current value and the target voltage value, and if the current difference value is smaller than a second preset threshold value, the current test is passed, wherein the second preset threshold value is a current value preset according to test requirements in advance, so that the error of collecting the current value is controlled within 5%, and the embodiment is not particularly limited.
Furthermore, the battery management module is also used for identifying the dormant state of the controller to be tested, and carrying out interface overvoltage test, reset test and interface power-off test on the tested interface under the condition of not dormant.
The interface overvoltage test comprises controlling the voltage of the tested interface within a preset duration to be larger than a preset overvoltage threshold value, and the interface power-off test comprises controlling the tested interface to be permanently powered off if the tested interface passes the interface overvoltage test of the tested interface and is reset to a preset number of times and the tested interface leakage is detected.
Specifically, the hardware state or communication data is changed to keep the controller to be tested from dormancy, the dormancy state of the controller to be tested is identified, under the condition that the controller to be tested is not dormant, the VIU identifies that the controller to be tested is Efuse type insurance control, a reset test operation is executed, the VIU identifies that the controller to be tested is HSD type insurance control, and the control interface is powered off; the power supply current of the tested interface is larger than a threshold value and lasts for more than 60 seconds, and is reset for three times, and if the interface is detected to be leaked, the VIU permanently cuts off the power of the corresponding interface.
Further, the upper computer is further used for obtaining an overvoltage test state, test time and reset test times sent by the battery management module and obtaining a leakage state of the tested interface sent by the battery management module.
The vehicle power supply testing system comprises a testing cabinet, an upper computer, a battery management module and a to-be-tested controller, wherein the testing cabinet is connected with the upper computer and the battery management module, the battery management module is connected with the to-be-tested controller through a plurality of interfaces, the testing cabinet is used for testing the voltage and current collection precision of the battery management module and comprises a voltage collection board card and a current collection board card, the voltage collection board card is used for collecting the voltage value of the to-be-tested controller, the current collection board card is used for collecting the current value of the to-be-tested controller, the upper computer is used for obtaining a plurality of interface states of the battery management module, checking the voltage and current information collected by the testing cabinet, and the battery management module is used for controlling the voltage and current of a plurality of interfaces of the accessed to-be-tested controller. According to the embodiment of the invention, the voltage acquisition board card and the current acquisition board card are newly added in the test cabinet to verify the voltage and current acquisition precision of the battery management module, the battery management module is connected with the interface of the controller to be tested, the interface is tested according to accurate voltage and current detection, and the upper computer manages and controls the battery management module to supply power to most of electric appliances of the whole vehicle, so that the battery management module is taken as a main body, the hardware interface test is controlled, and the power consumption requirements of each controller to be tested are met.
Referring to fig. 3, a flowchart illustrating steps of a vehicle power supply testing method according to an embodiment of the present invention is applied to the vehicle power supply testing system, where the method may include:
and step 101, collecting a voltage value and a current value of an interface connected with the controller to be tested, and testing the voltage and current collection precision of the tested interface.
In the embodiment of the invention, the upper computer checks the states of all interfaces of the VIU, and under the condition that the interfaces of the controller to be tested and the battery management module are connected, the voltage value of the interfaces is acquired through the voltage acquisition board card, the current value of the interfaces is acquired through the current acquisition board card, and the voltage and current acquisition precision of the tested interfaces is tested.
Further, step 101 collects a voltage value and a current value of an interface connected with the controller to be tested, and tests voltage and current collection precision of the tested interface, which may specifically include:
judging whether the voltage value acquired by the voltage acquisition board card is consistent with the target voltage value, and if the voltage difference value is smaller than a first preset threshold value, passing the voltage test of the tested interface;
and judging whether the current value acquired by the current acquisition board card is consistent with the target current value, and if the current difference value is smaller than a second preset threshold value, passing the current test of the tested interface.
Step 102, if the voltage test and the current test are passed, identifying the sleep state of the controller to be tested.
In the embodiment of the invention, if the voltage test and the current test pass, the dormant state of the controller to be tested is identified,
specifically, the voltage test and the current test result are that whether the values acquired by the voltage acquisition board card and the current acquisition board card are consistent with the target threshold value is checked, in this embodiment, the voltage difference value can be calculated according to whether the acquired voltage is consistent with the target voltage value sent by the VIU interface, the error is within 5% of the test passing, the current difference value is calculated according to whether the current acquired by the current acquisition board card is consistent with the target current value sent by the VIU interface, and the error is within 5% of the test passing.
And step 103, under the condition that the controller to be tested is not dormant, performing interface overvoltage test, reset test and interface power-off test on the tested interface.
Specifically, in the embodiment of the invention, the battery management module is further used for identifying the dormant state of the controller to be tested, and performing interface overvoltage test, reset test and interface outage test on the tested interface under the condition of no dormancy, and the upper computer monitors the test condition in real time by acquiring the overvoltage test state, the test time and the reset test times sent by the battery management module and acquiring the electric leakage state of the tested interface sent by the battery management module.
It should be noted that the interface overvoltage test includes controlling the voltage of the tested interface within the preset duration to be greater than the preset overvoltage threshold, and the interface power-off test includes controlling the tested interface to be permanently powered off if the tested interface overvoltage test passes and the reset test is performed for the preset times, and the tested interface leakage is detected.
Specifically, step 103 performs an interface overvoltage test, a reset test and an interface power-off test on the tested interface under the condition that the controller to be tested is not dormant, including:
under the condition that the controller to be tested is not dormant, controlling the voltage value of the tested interface in the preset duration to be greater than a preset overvoltage threshold value, and judging whether the interface overvoltage test of the tested interface is passed or not;
if the interface overvoltage test passes and the reset test is carried out for the preset times, the tested interface leakage is detected, and the tested interface is controlled to be permanently powered off.
By way of example, the controller to be tested is kept from dormancy by changing the hardware state or communication data, the dormancy state of the controller to be tested is identified, in the case of no dormancy, the VIU identifies that the controller to be tested is Efuse type insurance control, a reset test operation is executed, and the VIU identifies that the controller to be tested is HSD type insurance control, and the control interface is powered off; the power supply current of the tested interface is larger than a threshold value and lasts for more than 60 seconds, and is reset for three times, and if the interface is detected to be leaked, the VIU permanently cuts off the power of the corresponding interface.
Compared with the prior art, the vehicle power supply testing method provided by the embodiment of the invention tests the voltage and current acquisition precision of the tested interface by acquiring the voltage value and the current value of the interface connected with the controller to be tested, and if the voltage test and the current test pass, the dormancy state of the controller to be tested is identified, and under the condition that the controller to be tested does not dormancy, the interface overvoltage test, the reset test and the interface outage test are carried out on the tested interface. According to the embodiment of the invention, the voltage and current acquisition is carried out on the connection interface of the battery management module and the controller to be tested, the voltage and current acquisition precision of the tested interface is verified, and the interface overvoltage test, the reset test and the interface outage test are carried out on the controller to be tested, so that the accurate voltage and current test is realized, most of electric appliances of the whole vehicle are powered, the battery management module is taken as a main body, the hardware interface test is controlled, the electric requirements of each controller to be tested are met, the application scene of testing a low-voltage power supply is further expanded, the method is applicable to more scenes, and the practicability of the method is improved.
Referring to fig. 4, a schematic structural diagram of a vehicle power supply testing apparatus according to an embodiment of the present invention is shown, where the apparatus may include:
the first test module 201 is used for collecting a voltage value and a current value of an interface connected with the controller to be tested, and testing the voltage and current collection precision of the tested interface;
an identification status module 202, configured to identify a sleep status of the controller to be tested if the voltage value and the current value pass the test;
and the second test module 203 is configured to perform an interface overvoltage test, a reset test and an interface power-off test on the tested interface under the condition that the controller to be tested is not dormant.
Further, the first test module 201 includes:
the first judging submodule is used for judging whether the voltage value acquired by the voltage acquisition board card is consistent with the target voltage value or not, and if the voltage difference value is smaller than a first preset threshold value, the voltage test of the tested interface is passed;
and the second judging sub-module is used for judging whether the current value acquired by the current acquisition board card is consistent with the target current value, and if the current difference value is smaller than a second preset threshold value, the current test of the tested interface is passed.
Further, the second test module 203 includes:
the first interface testing submodule is used for controlling the voltage of the tested interface in the preset duration to be larger than a preset overvoltage threshold value and judging whether the interface overvoltage test of the tested interface is passed or not;
and the second interface test sub-module is used for controlling the tested interface to be permanently powered off if the tested interface is detected to be leaked by passing the interface overvoltage test and resetting the test to the preset times.
The specific implementation method of the vehicle power supply testing device provided in this embodiment may refer to the content of the vehicle power supply testing method provided in the embodiment of the present invention, and will not be described herein again.
The vehicle power supply testing device provided by the embodiment of the invention tests the voltage and current acquisition precision of the tested interface by acquiring the voltage value and the current value of the interface connected with the controller to be tested, if the voltage test and the current test pass, the dormant state of the controller to be tested is identified, and under the condition that the controller to be tested does not dormant, the interface overvoltage test, the reset test and the interface outage test are carried out on the tested interface. According to the embodiment of the invention, the voltage and current acquisition is carried out on the connection interface of the battery management module and the controller to be tested, the voltage and current acquisition precision of the tested interface is verified, and the interface overvoltage test, the reset test and the interface outage test are carried out on the controller to be tested, so that the accurate voltage and current test is realized, most of electric appliances of the whole vehicle are powered, the battery management module is taken as a main body, the hardware interface test is controlled, and the electric demand of each controller to be tested is met.
The embodiment of the present invention further provides an electronic device, as shown in fig. 5, including a processor 301, a communication interface 302, a memory 303, and a communication bus 304, where the processor 301, the communication interface 302, and the memory 303 perform communication with each other through the communication bus 304,
a memory 303 for storing a computer program;
the processor 301 is configured to execute the program stored in the memory 302, and implement the following steps:
collecting a voltage value and a current value of an interface connected with a controller to be tested, and testing the voltage and current collection precision of the tested interface;
if the voltage value and the current value pass the test, identifying the dormant state of the controller to be tested;
and under the condition that the controller to be tested does not sleep, performing interface overvoltage test, reset test and interface power-off test on the tested interface.
The communication bus mentioned by the above terminal may be a peripheral component interconnect standard (Peripheral Component Interconnect, abbreviated as PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated as EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
And a communication interface 302 for communication between the terminal and other devices.
The memory may include random access memory (Random Access Memory, RAM) or non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but also digital signal processors (Digital Signal Processing, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
In yet another embodiment of the present invention, a computer readable storage medium is provided, in which instructions are stored, which when run on a computer, cause the computer to perform the vehicle power supply testing method according to any one of the above embodiments.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (10)
1. The vehicle power supply testing system is characterized by comprising a testing cabinet, an upper computer, a battery management module and a controller to be tested, wherein the testing cabinet is connected with the upper computer and the battery management module, and the battery management module is connected with the controller to be tested through a plurality of interfaces;
the test cabinet is used for testing the voltage and current acquisition precision of the battery management module and comprises a voltage acquisition board card and a current acquisition board card, wherein the voltage acquisition board card is used for acquiring the voltage value of the controller to be tested, and the current acquisition board card is used for acquiring the current value of the controller to be tested;
the upper computer is used for acquiring a plurality of interface states of the battery management module and testing the controller to be tested according to the voltage and current information acquired by the test cabinet;
the battery management module is used for controlling the voltage and the current of a plurality of interfaces of the connected controller to be tested.
2. The system of claim 1, wherein the host computer is further configured to determine whether a portion of the interfaces of the power management module are on or off according to a plurality of interface states of the power management module;
the upper computer is also used for judging whether the voltage value acquired by the voltage acquisition board card is consistent with the target voltage value, and if the voltage difference value is smaller than a first preset threshold value, the voltage test is passed; and judging whether the current value acquired by the current acquisition board card is consistent with the target current value, and if the current difference value is smaller than a second preset threshold value, passing the current test.
3. The system of claim 1, wherein the battery management module is further configured to identify a sleep state of the controller under test, and perform an interface over-voltage test, a reset test, and an interface power-off test on the tested interface without sleep, where the interface over-voltage test includes controlling a voltage of the tested interface within a preset duration to be greater than a preset over-voltage threshold, and the interface power-off test includes controlling the tested interface to be permanently powered off if the interface over-voltage test of the tested interface passes and the reset test is performed a preset number of times, and detecting that the tested interface leaks.
4. The system of claim 1, wherein the host computer is further configured to obtain an overvoltage test status, a test time, and a reset test number sent by the battery management module, and obtain a leakage status of the tested interface sent by the battery management module.
5. A vehicle power supply testing method, characterized by being applied to the vehicle power supply testing system according to any one of claims 1 to 4, comprising:
collecting a voltage value and a current value of an interface connected with a controller to be tested, and testing the voltage and current collection precision of the tested interface;
if the voltage test and the current test are passed, identifying the dormant state of the controller to be tested;
and under the condition that the controller to be tested is not dormant, performing interface overvoltage test, reset test and interface power-off test on the tested interface.
6. The method of claim 5, wherein the step of collecting the voltage value and the current value of the interface connected to the controller to be tested, and testing the voltage and current collection accuracy of the interface to be tested, comprises:
judging whether the voltage value acquired by the voltage acquisition board card is consistent with the target voltage value, and if the voltage difference value is smaller than a first preset threshold value, passing the voltage test of the tested interface;
and judging whether the current value acquired by the current acquisition board card is consistent with the target current value, and if the current difference value is smaller than a second preset threshold value, passing the current test of the tested interface.
7. The method of claim 5, wherein the performing an interface over-voltage test, a reset test, and an interface power down test on the tested interface without the controller under test being dormant comprises:
under the condition that the controller to be tested is not dormant, controlling the voltage value of the tested interface in the preset duration to be larger than a preset overvoltage threshold value, and judging whether the interface overvoltage test of the tested interface is passed or not;
and if the interface overvoltage test passes and the reset test is performed for a preset number of times, detecting that the tested interface leaks electricity, and controlling the tested interface to be permanently powered off.
8. A vehicle power supply testing apparatus, the apparatus comprising:
the first testing module is used for collecting the voltage value and the current value of the interface connected with the controller to be tested and testing the voltage and current collection precision of the interface to be tested;
the identification state module is used for identifying the dormant state of the controller to be tested if the voltage test and the current test pass;
and the second test module is used for carrying out interface overvoltage test, reset test and interface power-off test on the tested interface under the condition that the controller to be tested is not dormant.
9. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the vehicle power supply testing method of any one of claims 5 to 7 when executing a program stored on a memory.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the vehicle power supply testing method as claimed in any one of claims 5-7.
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|---|---|---|---|
| CN202310617863.2A CN116643200A (en) | 2023-05-29 | 2023-05-29 | Vehicle power supply test system, method, device, equipment and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310617863.2A CN116643200A (en) | 2023-05-29 | 2023-05-29 | Vehicle power supply test system, method, device, equipment and storage medium |
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| CN202310617863.2A Pending CN116643200A (en) | 2023-05-29 | 2023-05-29 | Vehicle power supply test system, method, device, equipment and storage medium |
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| CN (1) | CN116643200A (en) |
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