CN115327443A - A method, device and storage medium for short leakage detection of electric vehicle wiring harness - Google Patents

Abstract

The invention relates to a method, a device and a storage medium for detecting short leakage of an electric vehicle wiring harness, which are applied to the technical field of electric vehicles, and include: presetting the current loss value and the current internal resistance loss value of the electric equipment of the electric vehicle, and running the electric vehicle while the electric vehicle is running. During the process, the battery output current value is obtained, and the theoretical total current consumption value is calculated according to the electrical equipment that has been turned on, and the battery output current value and the theoretical current consumption value should be equal. Therefore, if the battery output current value is greater than the theoretical current consumption value The total current consumption value can determine the occurrence of wiring harness leakage, cut off the output current of the battery, and avoid the continuous leakage of electricity, which may cause damage to various electrical equipment of the electric vehicle, or even the explosion of the electric vehicle.

Description

A method, device, and storage medium for short-leakage detection of electric vehicle wiring harness

technical field

The invention relates to the technical field of electric vehicles, in particular to a method, a device and a storage medium for detecting a short-leakage of a wiring harness of an electric vehicle.

Background technique

Electric two-wheeled vehicles have the characteristics of low pollution, energy saving, simple structure and control, etc., and have gradually become a popular and vigorously promoted green transportation tool in the world. At present, the number of electric vehicles in my country exceeds 300 million, and it shows a growing trend year by year. China has Become the world's largest electric vehicle manufacturer and consumer. Yet a large amount of electric two-wheel vehicles have also brought more potential safety hazards while providing convenience to the people. Due to the poor waterproof performance of electric vehicles, it is easy to fall and collide at the same time, and the service life of electric vehicles is long, which is easy to cause circuit aging and leakage. From the perspective of the cause of the fire, failure of electrical components, aging and short circuit of the electrical wiring harness, overcharging and overdischarging of the battery are the main causes of electric vehicle fires.

As users have higher and higher requirements for vehicle speed and power. Increasing the battery capacity, using high-current charging and discharging, and rapid changes in capacity and voltage will cause loads on the entire vehicle line, which may cause the line to overheat, damage, or even break down and short-circuit, causing electric bicycles to catch fire and explode.

Contents of the invention

In view of this, the object of the present invention is to provide a short leakage detection method, device and storage medium of electric vehicle wiring harness to solve the problem of electric vehicle leakage or short circuit caused by line aging, overheating and damage in the prior art. The problem of car fires and explosions.

According to the first aspect of the embodiments of the present invention, there is provided a short leakage detection method for electric vehicle wiring harness, including:

During the driving process of the electric vehicle, the output current value of the battery of the electric vehicle is obtained, and the current supplied to the motor by the vehicle controller is obtained;

According to the electrical equipment started by the electric vehicle, the preset current consumption value of the electrical equipment is obtained;

The total current loss value is obtained by adding the preset current loss value of each electrical equipment, the vehicle controller to the motor current and the preset internal resistance loss current value;

Compare the total current loss value with the electric vehicle battery output current value;

If the error is within the preset range, it indicates that the wiring harness of the electric vehicle is normal. If the output current value of the electric vehicle battery is greater than the total current loss value and the error is not within the preset range, it indicates that there is a leakage of the wiring harness. Cut off the output current of the electric vehicle battery , Stop supplying electricity to electric vehicles.

Preferably,

The preset current consumption value and the preset internal resistance consumption current value of the electrical equipment are remotely set through the communication module.

Preferably,

The electrical equipment includes an instrument panel, far and near lights, and an alarm, and the current consumption values of the instrument panel, far and near lights, and the alarm are set remotely through a communication module.

Preferably,

The internal resistance loss current includes the internal resistance loss current when the instrument panel is started, the internal resistance loss current when the instrument panel and the far and near lights are started, the internal resistance loss current when the instrument panel and the alarm are started, and the far and near lights and the alarm. The internal resistance loss current and the internal resistance loss current when the instrument panel, far and near lights and alarm are started at the same time;

The internal resistance loss current is set remotely through the communication module.

Preferably, it also includes:

When the electric vehicle is at rest, turn on the power supply, open the instrument panel, and obtain the battery output current value at this time, that is, the sum of the instrument current loss value and the internal resistance loss current when the instrument panel starts;

Turn off the instrument panel, turn on the far and near lights, and get the battery output current value at this time, that is, the sum of the far and near light current loss value and the internal resistance loss current when the far and near lights are started;

Turn off the far and near lights, turn on the alarm, and get the battery output current value at this time, that is, the sum of the current loss value of the alarm and the internal resistance current when the alarm starts;

Record and save the battery output current value of the electric vehicle in different states.

Preferably,

During the driving process of the electric vehicle, obtain the real-time battery output current value of the electric vehicle, and obtain the current to the motor from the vehicle controller;

According to the state of the electric vehicle, read the corresponding battery output current value. If multiple electrical devices are turned on at the same time, add the corresponding battery output current values, and add the current to the motor from the vehicle controller to obtain the total current loss value. ;

Compare the total current loss value with the real-time battery output current value, and judge whether the electric vehicle wiring harness is normal.

Preferably,

The electric vehicle is stationary without any electrical equipment activated. When the battery output current value is negative, it indicates that the electric vehicle is in a charging state;

When the battery output current value is not within the preset charging current threshold range, it is judged that the charging harness is short-circuited, and the charging current is cut off.

Preferably,

When the wiring harness leaks or the charging harness is short-circuited, in addition to cutting off the output current or charging current, the alarm will also be activated synchronously.

According to the second aspect of the embodiments of the present invention, there is provided an electric vehicle wire harness short leakage detection device, including:

The first data acquisition module: used to obtain the output current value of the battery of the electric vehicle during the driving process of the electric vehicle, and obtain the current supplied to the motor by the vehicle controller;

The second data acquisition module: used to acquire the preset current consumption value of the electrical equipment according to the electrical equipment started by the electric vehicle;

Total current loss value acquisition module: used to add the preset current loss value of each electrical device, the current to the motor from the vehicle controller, and the preset internal resistance loss current value to obtain the total current loss value;

Judgment module: used to compare the total current loss value with the electric vehicle battery output current value; if the error is within the preset range, it indicates that the electric vehicle wiring harness is normal; if the electric vehicle battery output current value is greater than the total current loss value and the error is not Within the preset range, it indicates that there is a leakage of the wiring harness, the output current of the battery of the electric vehicle is cut off, and the power supply for the electric vehicle is stopped.

According to a third aspect of the embodiments of the present invention, a storage medium is provided, the storage medium stores a computer program, and when the computer program is executed by a processor, a method for detecting short-leakage of electric vehicle wiring harness as described above is realized each step in the .

The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

This application presets the current loss value and current internal resistance loss value of the electrical equipment of the electric vehicle, obtains the output current value of the battery during the driving of the electric vehicle, and calculates the theoretical total current consumption value according to the electrical equipment that has been turned on. The battery output current value should be equal to the theoretical current consumption value. Therefore, if the battery output current value is greater than the theoretical total current consumption value, it can be determined that the wiring harness leakage has occurred, and the output current of the battery is cut off to avoid continuous leakage. Damage to various electrical equipment, and even the explosion of electric vehicles.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic flow chart of a method for detecting short-leakage of electric vehicle wire harness according to an exemplary embodiment;

Fig. 2 is a schematic flowchart of a method for obtaining a current consumption value of an electrical device and a corresponding current internal resistance consumption value according to another exemplary embodiment;

Fig. 3 is a system schematic diagram of an electric vehicle wire harness short-leakage detection device according to another exemplary embodiment;

In the drawings: 1 - the first data acquisition module, 2 - the second data acquisition module, 3 - the total current consumption value acquisition module, 4 - the judgment module.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

Embodiment one

Fig. 1 is a schematic flow chart of a short leakage detection method for electric vehicle wiring harness according to an exemplary embodiment, as shown in Fig. 1 , including:

S1, during the driving process of the electric vehicle, obtain the output current value of the battery of the electric vehicle, and obtain the current supplied to the motor by the vehicle controller;

S2, according to the electrical equipment activated by the electric vehicle, obtain the preset current consumption value of the electrical equipment;

S3, adding the preset current loss value of each electrical device, the motor current supplied by the vehicle controller, and the preset internal resistance loss current value to obtain a total current loss value;

S4, compare the total current loss value with the electric vehicle battery output current value; if the error is within the preset range, it indicates that the electric vehicle wiring harness is normal; if the electric vehicle battery output current value is greater than the total current loss value and the error is not within the preset Within the range, it indicates that there is a leakage of the wiring harness, cut off the output current of the battery of the electric vehicle, and stop supplying power to the electric vehicle;

It can be understood that, in this embodiment, during the running of the electric vehicle, the battery output current value is acquired by the Hall current sensor arranged at the battery output position of the electric vehicle and sent to the processor, and the processor acquires the output current value of the electric vehicle from the vehicle controller to the motor. Current, during the driving of the electric vehicle, the current supplied by the vehicle controller to the motor must exist, and the current value is relatively fixed. In addition, the electric vehicle also includes other electrical equipment, which are not always in the active state. The loss current value of these electrical equipment is also relatively fixed. At the same time, when the electrical equipment is turned on, there is an internal resistance loss. When different electrical equipment is turned on, the corresponding internal resistance loss is also relatively fixed, so the electrical equipment can be preset. The current loss value, the corresponding current internal resistance loss value, and the current value supplied by the vehicle controller to the motor. The sum of the motor current is approximately equal, so during the driving of the electric vehicle, according to the electrical equipment turned on, the preset current loss value of the electrical equipment and the corresponding current internal resistance loss value can be obtained, and these values are combined with the processor. The received vehicle controller adds the motor current and compares it with the actual output current value of the battery. If the error is within the preset range, it means that there is no leakage phenomenon. If the actual output current value of the battery is much greater than the theoretical total The current loss value indicates that the electric vehicle wiring harness has leakage. At this time, in order to avoid explosion accidents, it is necessary to cut off the current output of the battery. Cutting off the current output can be completed by a double-pole double-throw relay installed in the battery.

Preferably,

The preset current loss value of the electrical equipment and the preset internal resistance loss current value are set remotely through the communication module;

It can be understood that since the current loss value of the electrical equipment and the corresponding internal resistance loss current are relatively fixed when the wiring harness is normal, they can be obtained through experiments and remotely set through the communication module connected to the processor.

Preferably,

The electrical equipment includes an instrument panel, far and near lights, and an alarm, and the current consumption values of the instrument panel, far and near lights, and the alarm are set remotely through the communication module;

It can be understood that the electrical equipment usually included in the electric vehicle includes a dashboard, near and far lights, and an alarm, and the current consumption values of the dashboard, near and far lights, and the alarm can be set through the communication module.

Preferably,

The internal resistance loss current includes the internal resistance loss current when the instrument panel is started, the internal resistance loss current when the instrument panel and the far and near lights are started, the internal resistance loss current when the instrument panel and the alarm are started, and the far and near lights and the alarm. The internal resistance loss current and the internal resistance loss current when the instrument panel, far and near lights and alarm are started at the same time;

The internal resistance loss current is set remotely through the communication module;

It can be understood that when each electrical device is turned on, in addition to its own current loss, there is also a corresponding internal resistance loss. Similarly, the internal resistance loss of each electrical device is relatively fixed, so according to the opened electrical The corresponding internal resistance loss is also different for different devices. For example, when only the instrument panel is turned on, the corresponding internal resistance is the internal resistance loss current of the instrument panel. If multiple electrical devices are turned on, such as the instrument panel and far and near lights are turned on at the same time, Then the internal resistance loss includes the internal resistance loss of the instrument panel and the internal resistance loss of the far and near lights. Adding these two internal resistance losses is the internal resistance loss when the instrument panel and the far and near lights are turned on at the same time. Because these internal resistance losses are It is relatively fixed and can be obtained through experiments, so it can be set remotely through the communication module.

Preferably, it also includes:

S101, the electric vehicle is stationary, start the power supply, open the instrument panel, and obtain the battery output current value at this time, that is, the sum of the instrument current loss value and the internal resistance loss current when the instrument panel starts;

S201, turn off the instrument panel, turn on the far and near lights, and obtain the battery output current value at this time, that is, the sum of the current consumption value of the far and near lights and the internal resistance loss current when the far and near lights are started;

S301, turn off the far and near lights, turn on the alarm, and obtain the battery output current value at this time, that is, the sum of the current consumption value of the alarm and the internal resistance current when the alarm is started;

S401, recording and saving the battery output current values of the electric vehicle under different states;

It can be understood that, as shown in Figure 2, in addition to setting the current loss value and current internal resistance loss current through the communication module, it can also be calculated through actual operation. When the power is turned on at rest, since the electric car is not running, there is no vehicle controller to supply current to the motor, only the instrument panel is turned on, and the current output value of the battery at this time is only used for the instrument panel and the internal resistance of the instrument panel loss, so the current output value of the battery at this time is the sum of the current loss value of the instrument panel and the internal resistance loss current of the instrument panel, record this current output value; then turn off the instrument panel, and only start the far and near lights, similarly, you can Get the sum of the current consumption value of the far and near lights and the internal resistance loss current of the far and near lights. Similarly, you can also get the current consumption value of the alarm and the sum of the internal resistance current when the alarm starts, and store these data in the memory of the processor. , for the processor to call.

Preferably,

During the driving process of the electric vehicle, obtain the real-time battery output current value of the electric vehicle, and obtain the current to the motor from the vehicle controller;

According to the state of the electric vehicle, read the corresponding battery output current value. If multiple electrical devices are turned on at the same time, add the corresponding battery output current values, and add the current to the motor from the vehicle controller to obtain the total current loss value. ;

Compare the total current loss value with the real-time battery output current value, and judge whether the electric vehicle wiring harness is normal;

It is understandable that during the driving of the electric vehicle, according to the state of the electric vehicle, that is, which electrical equipment is turned on, such as the far and near lights and the alarm are turned on at the same time, the processor directly reads the current consumption value of the far and near lights and The sum of the internal resistance loss current of the far and near lights, the alarm current loss value, and the sum of the internal resistance current when the alarm is activated, add these two values together, and add the vehicle controller obtained by the processor to give Motor current, you can get the theoretical value of the total current loss at this time, compare this value with the battery output current value obtained in real time, you can judge whether there is leakage in the electric vehicle wiring harness;

It is worth emphasizing that the current consumed by the processor is also a relatively fixed value, and the current consumed by the processor can be incorporated into the current supplied to the motor by the vehicle controller, or it can be incorporated into the internal resistance, but using the value shown in Figure 2 When using the method shown, when multiple electrical devices are started, when calculating the total theoretical current consumption value, the consumption current of the processor is only added once.

Preferably,

The electric vehicle is stationary without any electrical equipment activated. When the battery output current value is negative, it indicates that the electric vehicle is in a charging state;

When the battery output current value is not within the preset charging current threshold range, it is judged that the charging harness is short-circuited and the charging current is cut off;

It can be understood that when the electric vehicle is stationary and no electrical equipment is started, if the Hall current sensor detects that the output current of the battery is negative, it indicates that the battery is in a charging state at this time. If the current output value exceeds the charging current parameter, it indicates that the wiring harness is short-circuited, and the processor will also cut off the charging wiring harness to avoid burning or explosion of the electric vehicle.

Preferably,

When the wiring harness leakage or the charging harness is short-circuited, in addition to cutting off the output current or charging current, the alarm will also be activated synchronously;

It is understandable that, in addition to cutting off the wiring harness, when the electric wiring harness leaks or the charging wiring harness is short-circuited, the alarm will be activated to give an alarm, and the fault parameters of the wiring harness problem will be recorded at the same time.

Embodiment two

This embodiment also discloses a system schematic diagram of an electric vehicle wire harness short leakage detection device, as shown in Figure 3, including:

The first data acquisition module 1: used to obtain the output current value of the battery of the electric vehicle during the driving process of the electric vehicle, and obtain the current supplied to the motor by the vehicle controller;

The second data acquisition module 2: used to acquire the preset current consumption value of the electrical equipment according to the electrical equipment started by the electric vehicle;

Total current loss value acquisition module 3: used to add the preset current loss value of each electrical device, the current to the motor from the vehicle controller, and the preset internal resistance loss current value to obtain the total current loss value;

Judgment module 4: used to compare the total current loss value with the output current value of the electric vehicle battery; if the error is within the preset range, it indicates that the wiring harness of the electric vehicle is normal; if the output current value of the electric vehicle battery is greater than the total current loss value and the error If it is not within the preset range, it indicates that there is a leakage of the wiring harness, cut off the output current of the battery of the electric vehicle, and stop supplying power to the electric vehicle;

It can be understood that this application also discloses a short-leakage detection device for electric vehicle wiring harness. In this device, the first data acquisition module 1 is used to obtain the output current value of the battery of the electric vehicle and the output current value of the vehicle controller during the driving process of the electric vehicle. Give the motor current; the second data acquisition module 2 is used to obtain the preset current consumption value of the electrical equipment according to the electrical equipment started by the electric vehicle; the total current consumption value acquisition module 3 is used to obtain the preset current consumption of each electrical equipment value, the motor current given by the vehicle controller and the preset internal resistance loss current value are added to obtain the total current loss value, and the judging module 4 is used to compare the total current loss value with the electric vehicle battery output current value; if the error is within the preset If the output current value of the electric vehicle battery is greater than the total current loss value and the error is not within the preset range, it indicates that there is a leakage of the wiring harness. Cut off the output current of the electric vehicle battery and stop the electric vehicle. Power supply, to avoid the continuous leakage of electricity that causes damage to the electrical equipment of the electric vehicle, and even the explosion of the electric vehicle.

Embodiment three

This embodiment also discloses a storage medium, the storage medium stores a computer program, and when the computer program is executed by a processor, each step in the above method is realized;

It can be understood that the storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

It can be understood that, the same or similar parts in the above embodiments can be referred to each other, and the content that is not described in detail in some embodiments can be referred to the same or similar content in other embodiments.

It should be noted that, in the description of the present invention, terms such as "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" means at least two.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including in substantially simultaneous fashion or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, Programmable Gate Arrays (PGAs), Field Programmable Gate Arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A short and leakage detection method for an electric vehicle wire harness is characterized by comprising the following steps:

acquiring the output current value of an electric vehicle battery and acquiring the current supplied to a motor by a vehicle controller in the running process of the electric vehicle;

acquiring a current loss value preset by electrical equipment according to the electrical equipment started by the electric vehicle;

adding current loss values preset by each electrical device, motor current supplied by a vehicle controller and a preset internal resistance loss current value to obtain a total current loss value;

comparing the total current loss value with the output current value of the battery of the electric vehicle;

if the error is in the preset range, the wiring harness of the electric vehicle is normal, if the output current value of the battery of the electric vehicle is larger than the total current loss value and the error is not in the preset range, the condition that the wiring harness leaks electricity is indicated, the output current of the battery of the electric vehicle is cut off, and the power supply for the electric vehicle is stopped.

2. The method of claim 1,

and the preset current loss value and the preset internal resistance loss current value of the electrical equipment are set remotely through the communication module.

3. The method of claim 2,

the electrical equipment comprises an instrument panel, far and near light and an alarm, wherein the current loss values of the instrument panel, the far and near light and the alarm are set remotely through a communication module.

4. The method of claim 3,

the internal resistance loss current comprises internal resistance loss current when the instrument panel is started, internal resistance loss current when the instrument panel and the far and near light are started, internal resistance loss current when the instrument panel and the alarm are started, internal resistance loss current when the far and near light and the alarm are started, and internal resistance loss current when the instrument panel, the far and near light and the alarm are started simultaneously;

the internal resistance loss current is set remotely through the communication module.

5. The method of claim 3 or 4, further comprising:

the electric vehicle is static, a power supply is started, and an instrument panel is turned on to obtain the current value of the battery output at the moment, namely the sum of the current loss value of the instrument and the internal resistance loss current when the instrument panel is started;

turning off the instrument panel, and turning on the far and near light to obtain the current value output by the battery at the moment, namely the sum of the current loss value of the far and near light and the internal resistance loss current when the far and near light is started;

turning off the far and near light, and turning on the alarm to obtain the current value output by the battery at the moment, namely the sum of the current loss value of the alarm and the internal resistance current when the alarm is started;

and recording and storing the output current values of the batteries of the electric vehicle in different states.

6. The method of claim 5,

acquiring the real-time battery output current value of the electric vehicle and acquiring the current supplied to a motor by a vehicle controller in the running process of the electric vehicle;

reading corresponding battery output current values according to the state of the electric vehicle, if a plurality of electric devices are simultaneously turned on, adding the corresponding battery output current values, and adding the current supplied to the motor by a vehicle controller to obtain a total current loss value;

and comparing the total current loss value with the real-time battery output current value, and judging whether the electric vehicle wire harness is normal or not.

7. The method of claim 6,

the electric vehicle is static, no electric equipment is started, and when the output current value of the battery is negative, the electric vehicle is in a charging state;

and when the output current value of the battery is not within the preset charging current threshold range, judging that the charging wire bundle is short-circuited, and cutting off the charging current.

8. The method according to claim 1 or 7,

when the wiring harness leaks electricity or the charging wiring harness is short-circuited, the alarm is synchronously started except for cutting off the output current or the charging current.

9. The utility model provides an electric motor car pencil short leakage detection device which characterized in that includes:

a first data acquisition module: the method is used for acquiring the output current value of the battery of the electric vehicle and acquiring the current supplied to a motor by a vehicle controller in the running process of the electric vehicle;

the second data acquisition module: the method comprises the steps that the current loss value preset by the electrical equipment is obtained according to the electrical equipment started by the electric vehicle;

a total current loss value acquisition module: the current loss control circuit is used for adding current loss values preset by each electrical device, motor current supplied by the vehicle controller and a preset internal resistance loss current value to obtain a total current loss value;

a judging module: comparing the total current loss value with the output current value of the electric vehicle battery; if the error is in the preset range, the wiring harness of the electric vehicle is normal, if the output current value of the battery of the electric vehicle is larger than the total current loss value and the error is not in the preset range, the condition that the wiring harness leaks electricity is indicated, the output current of the battery of the electric vehicle is cut off, and the power supply for the electric vehicle is stopped.

10. A storage medium storing a computer program which, when executed by a processor, implements the steps of a method for detecting short-circuit and leak of an electric vehicle wiring harness according to any one of claims 1 to 8.

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