CN116729123A - A fault handling method, device, equipment, storage medium and vehicle - Google Patents

Abstract

The present disclosure relates to a fault handling method, device, equipment, storage medium and vehicle. The method includes: for each temperature sensor in a battery pack, determining whether the temperature sensor is a failed temperature sensor; and counting the number of failed temperature sensors. situation; compare the situation of the failed temperature sensor with the set condition to obtain a comparison result; based on the comparison result, control the vehicle to execute a fault processing process that matches the comparison result. The technical solution provided by the embodiment of the present disclosure refines the identification of the failed temperature sensor and performs a corresponding fault processing process according to the failure condition of the failed temperature sensor, thereby improving vehicle safety and user experience.

Description

A fault handling method, device, equipment, storage medium and vehicle

Technical field

The present disclosure relates to the technical field of battery performance, and in particular, to a fault handling method, device, equipment, storage medium and vehicle.

Background technique

In the field of pure electric vehicles, battery temperature has a direct impact on battery performance and is one of the important input parameters for BMS (Battery Management System) algorithms, thermal management strategies, safety protection actions, etc. At present, battery temperature sampling solutions are mostly based on NTC (negative temperature coefficient temperature sensor) for real-time sampling, and a single battery pack layout generally reaches about 10 to 20 cells. In the later use environment with mechanical loads such as weather load and vibration, there is a possibility of individual NTC failure. The sampling temperature distortion caused by NTC failure will cause abnormal operation of battery pack functions, such as abnormal temperature alarms, thermal management malfunctions, and power limitations.

Identify abnormal NTC temperature sampling values in the battery pack. Without controlling the failed NTC, it is impossible to improve vehicle status recognition, vehicle safety protection and user experience upgrade.

Contents of the invention

In order to solve all or part of the deficiencies in the existing technology, the present disclosure provides a fault processing method, device, equipment, storage medium and vehicle, by performing refined identification of the failed temperature sensor, and based on the failure situation of the failed temperature sensor. The corresponding troubleshooting process improves vehicle safety and user experience.

In a first aspect, an embodiment of the present disclosure provides a fault handling method, which method includes:

For each temperature sensor in the battery pack, determine whether the temperature sensor is a failed temperature sensor;

Statistics on the failure of temperature sensors;

Compare the failure temperature sensor situation with the set conditions to obtain comparison results;

Based on the comparison result, the vehicle is controlled to execute a fault handling process matching the comparison result.

In a second aspect, an embodiment of the present disclosure provides a fault handling device, which includes:

A failure determination module, used for each temperature sensor in the battery pack to determine whether the temperature sensor is a failed temperature sensor;

A failure statistics module, used to count the failure temperature sensors;

A failure judgment module is used to compare the failure temperature sensor with the set conditions to obtain a comparison result;

A fault processing module, configured to control the vehicle to execute a fault processing process matching the comparison result based on the comparison result.

In a third aspect, an embodiment of the present disclosure provides an electronic device, where the electronic device includes:

one or more processors;

A storage device for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the fault handling method as described in the first aspect above.

In a fourth aspect, embodiments of the present disclosure provide a computer-readable storage medium on which a computer program is stored. The feature is that when the program is executed by a processor, the fault handling method as described in the first aspect is implemented.

In a fifth aspect, an embodiment of the present disclosure provides a vehicle including the electronic device as described in the above third aspect.

Embodiments of the present disclosure provide fault handling methods, devices, equipment, storage media and vehicles. The method includes: for each temperature sensor in the battery pack, determining whether the temperature sensor is a failed temperature sensor; and counting the failed temperature sensors. situation; compare the situation of the failed temperature sensor with the set condition to obtain a comparison result; based on the comparison result, control the vehicle to execute a fault processing process that matches the comparison result. The technical solution provided by the embodiments of the present disclosure enables refined identification of failed temperature sensors, and performs corresponding fault processing procedures based on the failure conditions of the failed temperature sensors, thereby improving vehicle safety and user experience.

Description of drawings

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

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those of ordinary skill in the art, It is said that other drawings can be obtained based on these drawings without exerting creative labor.

Figure 1 is a flow chart of a fault handling method provided by an embodiment of the present disclosure;

Figure 2 is a flow chart of an optimized fault handling method provided by an embodiment of the present disclosure;

Figure 3 is a schematic structural diagram of a fault processing device provided by an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of an electronic device in an embodiment of the present disclosure.

Detailed ways

In order to understand the above objects, features and advantages of the present disclosure more clearly, the solutions of the present disclosure will be further described below. It should be noted that, as long as there is no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, which rather are provided for A more thorough and complete understanding of this disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of the present disclosure.

It should be understood that various steps described in the method implementations of the present disclosure may be executed in different orders and/or in parallel. Furthermore, method embodiments may include additional steps and/or omit performance of illustrated steps. The scope of the present disclosure is not limited in this regard.

As used herein, the term "include" and its variations are open-ended, ie, "including but not limited to." The term "based on" means "based at least in part on." The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; and the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the description below.

It should be noted that concepts such as “first” and “second” mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units. Or interdependence.

It should be noted that the modifications of "one" and "plurality" mentioned in this disclosure are illustrative and not restrictive. Those skilled in the art will understand that unless the context clearly indicates otherwise, it should be understood as "one or Multiple”.

The names of messages or information exchanged between multiple devices in the embodiments of the present disclosure are for illustrative purposes only and are not used to limit the scope of these messages or information.

Figure 1 is a flow chart of a fault handling method in an embodiment of the present disclosure. This embodiment can be applied to the situation where NTC conditions are identified and then fault handling is performed. This method can be executed by a fault handling device. The fault handling device Can be configured in electronic equipment.

As shown in Figure 1, the fault handling method provided in the embodiment of the present disclosure mainly includes steps S101-S104.

S101. For each temperature sensor in the battery pack, determine whether the temperature sensor is a failed temperature sensor.

In the embodiment of the present disclosure, the temperature sensor refers to a sensor provided in the battery pack for measuring the temperature of the battery core. The battery pack includes multiple battery modules, and the number of temperature sensors provided in each battery module may be the same or different, which is no longer specifically limited in the embodiments of the present disclosure. Furthermore, the number of temperature sensors installed in a battery pack can also be set according to the actual situation. Generally, 10-20 temperature sensors are installed in a battery pack.

In one embodiment of the present disclosure, the temperature sensor is preferably a negative temperature coefficient thermistor. The negative temperature coefficient thermistor, also known as an NTC thermistor, is a type whose resistance value decreases as the temperature increases. Sensor resistance.

In one embodiment of the present disclosure, after the battery management system is powered on, within the temperature sampling period T, each temperature sensor in the battery pack is sampled to determine whether the temperature sensor is a failed sensor. Wherein, the failure sensor can be understood as a temperature abnormality of the sensor, and its corresponding temperature sampling value is no longer used as an indicator for subsequent vehicle control.

In one embodiment of the present disclosure, for each temperature sensor in the battery pack, determining whether the temperature sensor is a failed temperature sensor includes: for each temperature sensor in the battery pack, collecting the temperature of the temperature sensor. Temperature sampling value; based on the temperature sampling value of each temperature sensor in the battery pack, calculate the temperature sampling average value corresponding to the battery pack; calculate the difference between the temperature sampling value of the temperature sensor and the temperature sampling average value value as the temperature difference; when the temperature difference is greater than the set temperature threshold, the temperature sensor corresponding to the temperature sampling value is determined to be a failed temperature sensor.

In the embodiment of the present disclosure, the temperature sensor is an NTC temperature sensor as an example for description. After the battery management system is powered on, it samples each temperature sensor in the battery pack during the temperature sampling period T, and collects and records the temperature sampling values T _i of multiple NTC temperature sensors, where i is the serial number of the NTC temperature sensor. The number of recorded temperature sample values corresponds to the number of temperature sensors.

In the embodiment of the present disclosure, the average temperature sampling values of multiple NTC temperature sensors are calculated to obtain the temperature sampling average value T _avg corresponding to the battery pack. The average calculation method is no longer specifically limited in the embodiments of this disclosure.

In the embodiment of the present disclosure, the absolute value of the difference between the temperature sampling value of the temperature sensor and the temperature sampling average value is used as the temperature difference value. Among them, the set temperature threshold _Ta is a calibration quantity, and the specific value of the set temperature threshold _Ta can be obtained based on the battery pack high and low temperature chamber test and the vehicle winter and summer standard data. Generally, T _a can be set to 1.2 times the difference between the temperature sampling values in the entire battery pack when the vehicle is charging and discharging under extreme ambient temperatures where the battery pack can be used.

In the embodiment of the present disclosure, for each acquired temperature sample value _Ti , the absolute value of the difference between the temperature sample value _Ti and the temperature sample average T _avg is calculated: |T _i -T _avg | . Further, determine whether |T _i -T _avg | is greater than the set temperature threshold Ta. If |T _i -T _avg |>T _a , then the temperature sensor corresponding to the temperature sampling value _Ti is abnormal and it is determined to be a failed temperature sensor. . If |T _i -T _avg |≤T _a , the temperature sensor corresponding to the temperature sampling value _Ti is in normal working status and does not need to be processed.

S102. Statistics on the failed temperature sensors.

In the embodiment of the present disclosure, the situation of failed temperature sensors mainly includes the number of failed temperature sensors and the distribution of failed temperature sensors. Specifically, the situation of the failed temperature sensor includes: the first number of failed temperature sensors in the same battery module, and the second number of failed temperature sensors in the battery pack.

In one embodiment of the present disclosure, a battery pack includes multiple battery modules, and each battery module includes multiple NTC temperature sensors. When there are multiple failed NTC temperature sensors in the same battery module, the first number is the maximum number of failed NTC temperature sensors in the same battery module. For example, take the entire battery pack with 18 NTC temperature sensors and 6 battery modules, and each battery module is equipped with 3 NTC temperature sensors as an example. If there are 2 failed NTC temperature sensors in the 2nd battery module, 1 failed NTC temperature sensor in the 4th battery module, and 3 failed NTC temperature sensors in the 6th battery module, the same The first number of failed temperature sensors in the battery module is 3.

In one embodiment of the present disclosure, the second number can be understood as the total number of failed temperature sensors in the entire battery pack. For example, if there are 18 NTC temperature sensors and 6 battery modules in the entire battery pack, each battery The module is equipped with three NTC temperature sensors as an example for illustration. If there are 2 failed NTC temperature sensors in the 2nd battery module, 1 failed NTC temperature sensor in the 4th battery module, and 1 failed NTC temperature sensor in the 6th battery module, then there is The second number of failed temperature sensors is four.

In one embodiment of the present disclosure, the method further includes: determining whether the failed temperature sensor is a set temperature sensor; if the failed temperature sensor is a set temperature sensor, eliminating the temperature corresponding to the failed temperature sensor. Sampling value; compensate for the preset maximum temperature value and minimum temperature value in the battery pack.

In the embodiment of the present disclosure, the set temperature sensor is a key temperature sensor pre-specified by the staff based on actual conditions.

In an embodiment of the present disclosure, determining whether the failed temperature sensor is a set temperature sensor includes: determining whether the failed temperature sensor is a set temperature sensor based on a sensor serial number corresponding to the failed temperature sensor.

Specifically, the serial number of the key NTC temperature sensor is defined as key. When the sensor serial number i corresponding to the failed temperature sensor = key, it is determined that the failed temperature sensor i is the set temperature sensor.

In the embodiment of the present disclosure, if the failed temperature sensor is a set temperature sensor, the temperature sampling value corresponding to the failed temperature sensor is eliminated; at the same time, the above-mentioned first quantity and second quantity are also determined according to the actual situation. Decrease the sum or remain the same.

In one embodiment of the present disclosure, the compensation for the preset maximum temperature value and the minimum temperature value in the battery pack includes: setting the preset maximum temperature value as the failure temperature sensor The sum of the corresponding temperature sampling value and the compensation value; the preset minimum temperature value is set as the difference between the temperature sampling value corresponding to the failed temperature sensor and the compensation value.

In one embodiment of the present disclosure, the maximum temperature values T _max and T _min are compensated. Specifically, the maximum temperature value T _max is equal to the sum of the temperature sampling value T _{failure max} corresponding to the failed temperature sensor and the compensation value ΔT, that is, T _max =T _{failure max} +ΔT, the high temperature value T _max is equal to the difference between the temperature sampling value T _{failure max} corresponding to the failure temperature sensor and the compensation value ΔT, that is, T _min =T _{failure min} -ΔT.

It should be noted that T _{failure max} and T _{failure min} are divided into the maximum value and the minimum value of this temperature sampling value after excluding the failed temperature sensor. If multiple set NTC temperature sensors fail, T _max and T _min will only be compensated once.

In the embodiment of the present disclosure, critical NTC temperature sensing and non-critical NTC temperature sensing are distinguished, and the critical point NTC temperature sensing is compensated for the lookup table of PI MAP and charging MAP of the battery management system. The battery cell safety is protected after NTC failure to prevent excessive use of the battery.

S103. Compare the failure temperature sensor situation with the set conditions to obtain a comparison result.

In one embodiment of the present disclosure, the condition of failed temperature sensors may be the total number of failed temperature sensors, and the setting condition may be a quantity threshold. The comparison results include: the total number of failed temperature sensors is greater than or equal to the quantity threshold, or the total number of failed temperature sensors is less than the quantity threshold.

S104. Based on the comparison result, control the vehicle to execute a fault handling process that matches the comparison result.

In one embodiment of the present disclosure, when the total number of failed temperature sensors is greater than or equal to the number threshold, the vehicle can be controlled to perform a fault processing process matching the result.

In one embodiment of the present disclosure, when the total number of failed temperature sensors is less than the number threshold, the vehicle can be controlled to display prompt information, and the prompt information is used to prompt the driver of the presence of failed temperature sensors.

The fault handling method provided by the embodiment of the present disclosure includes: for each temperature sensor in the battery pack, determining whether the temperature sensor is a failed temperature sensor; counting the status of the failed temperature sensor; The situation is compared with the set conditions to obtain a comparison result; based on the comparison result, the vehicle is controlled to execute a fault handling process that matches the comparison result. The technical solution provided by the embodiment of the present disclosure refines the identification of the failed temperature sensor and performs a corresponding fault handling process according to the failure condition of the failed temperature sensor, thereby improving vehicle safety and user experience.

In one embodiment of the present disclosure, the setting conditions include a first setting condition, a second setting condition, and a third setting condition.

The first set condition includes: the first quantity is equal to the first threshold, the second quantity is less than or equal to the second threshold, and the fault time exceeds a preset time period. The second setting condition includes: the first quantity is equal to the third threshold, and the second quantity is less than or equal to the fourth threshold, and the fault time exceeds the preset duration; the third setting condition includes: the first quantity is greater than or equal to the fifth threshold, and the second number is greater than the fourth threshold, and the fault time exceeds the preset duration; the first threshold is less than the third threshold, and the third threshold is less than the fifth threshold, The second threshold is less than the fourth threshold.

The first threshold, the second threshold, and the third threshold can be set according to actual conditions. Optionally, the first threshold is 1, the third threshold is 2, and the fifth threshold is 3. The second threshold and the fourth threshold can be set according to actual conditions. The second threshold is 2 and the fourth threshold is 4.

In one embodiment of the present disclosure, when the failure temperature sensor satisfies a first set condition, the vehicle is controlled to execute a fault processing process matching the first set condition.

In an embodiment of the present disclosure, when the first quantity is equal to the first threshold, and the second quantity is less than or equal to the second threshold, the vehicle is controlled to execute a fault processing process that matches the first set condition. .

In one embodiment of the present disclosure, controlling the vehicle to execute a fault processing process that matches the first set condition includes: controlling the vehicle to display prompt information, wherein the prompt information is used to indicate to the driver that there is a failure temperature Sensor: After the vehicle is powered off, eliminate the failure of the temperature sensor and the fault information corresponding to the failure of the temperature sensor.

The prompt information may be a fault light that lights up, and the fault information may include a fault code and a corresponding fault level. For example, when the first set condition is met, the corresponding fault level is a minor fault.

In one embodiment of the present disclosure, if the first quantity is equal to the first threshold, and the second quantity is less than or equal to the second threshold, it is determined to be a minor fault, and the vehicle is controlled to turn on the fault light. After the vehicle is powered off, the fault code and fault level will be cleared, as will the serial number of the failed temperature sensor and the statistics of failed temperature sensors.

For example: when the first quantity is equal to 1 and the second quantity is less than or equal to 2, it is determined to be a minor fault and the vehicle is controlled to turn on the fault light. After the vehicle is powered off, the fault code and fault level will be cleared, as will the serial number of the failed temperature sensor and the statistics of failed temperature sensors.

In one embodiment of the present disclosure, when the failure temperature sensor satisfies a second set condition, the vehicle is controlled to execute a fault processing process matching the second set condition.

In an embodiment of the present disclosure, when the first quantity is equal to the second threshold, and the second quantity is less than or equal to the fourth threshold, the vehicle is controlled to execute a fault processing process that matches the second set condition. .

In one embodiment of the present disclosure, controlling the vehicle to execute a fault processing process that matches the second set condition includes: controlling the vehicle to perform vehicle power limitation processing; after the vehicle is powered off, eliminating the The situation of the failed temperature sensor and the fault information corresponding to the situation of the failed temperature sensor.

In the embodiment of the present disclosure, when the second set condition is met, the vehicle executes and controls all fault processes that meet the first set condition to perform vehicle power limitation processing in a superimposed manner. Further, when the second setting condition is met, the corresponding fault level is a medium fault.

In one embodiment of the present disclosure, when the first quantity is equal to the second threshold, and the second quantity is less than or equal to the fourth threshold, it is determined to be a moderate fault, the vehicle is controlled to light the fault light, and the vehicle is controlled to turn on the fault light. The vehicle undergoes vehicle power limitation processing. After the vehicle is powered off, the fault code and fault level will be cleared, as will the serial number of the failed temperature sensor and the statistics of failed temperature sensors.

For example: when the first quantity is equal to 2 and the second quantity is less than or equal to 4, it is determined to be a moderate fault, the vehicle is controlled to light up the fault light, and the vehicle is controlled to perform vehicle power limitation processing. After the vehicle is powered off, the fault code and fault level will be cleared, as will the serial number of the failed temperature sensor and the statistics of failed temperature sensors.

In one embodiment of the present disclosure, when the failure temperature sensor satisfies a third set condition, the vehicle is controlled to execute a fault processing process matching the third set condition.

In an embodiment of the present disclosure, when the first quantity is greater than or equal to a third threshold, and the second quantity is greater than a fourth threshold, the vehicle is controlled to execute a fault processing process that matches the third set condition. .

In one embodiment of the present disclosure, controlling the vehicle to execute a fault processing process that matches the third set condition includes: controlling the vehicle to perform delayed high-voltage processing; and after the vehicle is powered off, retaining the The situation of the failed temperature sensor and the fault information corresponding to the situation of the failed temperature sensor, and the vehicle is prohibited from being powered on again.

In the embodiment of the present disclosure, when the third set condition is met, the corresponding fault level is a high-level fault.

In one embodiment of the present disclosure, when the first number is greater than or equal to the third threshold, and the second number is greater than the fourth threshold, it is determined to be a high-level fault, and the vehicle is controlled to light the fault light, and the control The vehicle is subjected to delayed high-pressure treatment. After the vehicle is powered off, the fault code and fault level, as well as the serial number of the failed temperature sensor and the statistics of the failed temperature sensor are retained, and the vehicle is prohibited from being powered on again.

For example: when the first number is greater than or equal to 3 and the second number is greater than 4, it is determined to be a high-level fault, the vehicle is controlled to light the fault light, and the vehicle is controlled to perform delayed high-pressure processing. After the vehicle is powered off, the fault code and fault level, as well as the serial number of the failed temperature sensor and the statistics of the failed temperature sensor are retained, and the vehicle is prohibited from being powered on again.

In the embodiment of the present disclosure, through refined identification of single or multiple failed NTC temperature sensors, failures in different scenarios are processed hierarchically. Added control processing for battery status monitoring, improving vehicle safety and user experience.

On the basis of the above embodiments, the embodiments of the present disclosure provide a preferred example. Specifically, as shown in Figure 2, the fault handling method provided in the embodiments of the present disclosure mainly includes: after the battery management system is powered on, During the temperature sampling period T, each temperature sensor in the battery pack is sampled, the temperature sampling values _Ti of multiple NTC temperature sensors are collected and recorded, and the difference between each temperature sampling value _Ti and the temperature sampling average value T _avg is calculated. The absolute value of the difference |T _i -T _avg |, determine whether |T _i -T _avg | is greater than the set temperature threshold T _a , if |T _i -T _avg |>T _a , then the temperature sampling value T _i The corresponding temperature sensor is abnormal and is determined to be a failed temperature sensor. Count the first number of failed temperature sensors in the same battery module and the second number of failed temperature sensors in the battery pack to determine whether the failed temperature sensor is a critical temperature sensor; if the failed temperature sensor is a temperature sensor, delete it The temperature sampling value corresponding to the failed temperature sensor is used to compensate for the preset maximum temperature value and minimum temperature value in the battery pack. When the first quantity is equal to 1 and the second quantity is less than or equal to 2, and the fault duration is greater than 4 seconds, it is determined to be a minor fault, and the vehicle is controlled to light up the fault light. After the vehicle is powered off, the fault code and fault level will be cleared, as well as the serial number of the failed temperature sensor and the statistics of failed temperature sensors; when the first number is equal to 2 and the second number is less than or equal to 4, the fault duration is greater than 4 seconds, it is determined to be a moderate fault, the vehicle is controlled to light the fault light, and the vehicle is controlled to perform vehicle power limiting processing. After the vehicle is powered off, the fault code and fault level will be cleared, as will the serial number of the failed temperature sensor and the statistics of failed temperature sensors. When the first number is greater than or equal to 3, the second number is greater than 4, and the fault duration is greater than 4 seconds, it is determined to be a high-level fault, the vehicle is controlled to light the fault light, and the vehicle is controlled to perform delayed high-pressure processing. After the vehicle is powered off, the fault code and fault level, as well as the serial number of the failed temperature sensor and the statistics of the failed temperature sensor are retained, and the vehicle is prohibited from being powered on again.

In embodiments of the present disclosure, failed NTC temperature sensors are identified and the NTC locations of the failed temperature sensors are individually counted. N is the number of failures within a single module, and M is the number of failures between different modules. Query the serial number of the NTC temperature sensor to determine whether the critical NTC temperature sensor has failed. After the key NTC temperature sensor fails, temperature compensation of ΔT is performed on the temperature T _max and T _min . According to the number N and M of NTC failure temperature sensors, the vehicle fault level is classified. Then determine the control of vehicle status. Non-serious failures will be restored after the vehicle is powered off, and the failed NTC temperature point will be re-identified after each power-on. Serious failures cannot be restored after the vehicle is powered off, and the vehicle is not allowed to be powered on again.

Figure 3 is a schematic structural diagram of a fault processing device provided by an embodiment of the present disclosure. This embodiment can be applied to the situation of performing fault processing after identifying NTC conditions. The fault processing device can be configured in electronic equipment.

Specifically, as shown in FIG. 3 , the fault processing device 30 provided by the embodiment of the present disclosure mainly includes a failure judgment module 31 , a failure situation statistics module 32 , a failure situation judgment module 33 and a fault processing module 34 .

Among them, the failure determination module 31 is used to determine whether the temperature sensor is a failed temperature sensor for each temperature sensor in the battery pack;

Failure statistics module 32 is used to count the failure temperature sensors;

The failure judgment module 33 is used to compare the failure temperature sensor with the set conditions to obtain the comparison result;

The fault processing module 34 is configured to control the vehicle to execute a fault processing process matching the comparison result based on the comparison result.

In one embodiment of the present disclosure, the setting conditions include a first setting condition, a second setting condition and a third setting condition; the fault processing module 34 includes: a first processing unit for When the failure temperature sensor meets the first set condition, control the vehicle to execute a fault processing process matching the first set condition; a second processing unit, used to control the vehicle to execute the fault processing process matching the first set condition when the failure temperature sensor meets the second set condition. In the case of setting conditions, the vehicle is controlled to execute a fault processing process that matches the second setting conditions; a third processing unit is used to control the failure temperature sensor when the third setting condition is met. The vehicle executes a fault handling process matching the third set condition.

In one embodiment of the present disclosure, the situation of the failed temperature sensor includes: a first number of failed temperature sensors in the same battery module, and a second number of battery modules with failed temperature sensors; wherein, the The first setting condition includes: the first quantity is equal to the first threshold, and the second quantity is less than or equal to the second threshold, and the fault time exceeds the preset duration; the second setting condition includes: the first quantity is equal to the first Three thresholds, and the second number is less than or equal to the fourth threshold, and the fault time exceeds the preset time length; the third setting condition includes: the first number is greater than or equal to the fifth threshold, and the second number is greater than a fourth threshold, and the fault time exceeds the preset duration; the first threshold is less than the third threshold, the third threshold is less than the fifth threshold, and the second threshold is less than the fourth threshold.

In one embodiment of the present disclosure, the first processing unit is specifically configured to control the vehicle to display prompt information, wherein the prompt information is used to indicate the presence of a failed temperature sensor to the driver; after the vehicle is powered off, the The condition of the failed temperature sensor and the fault information corresponding to the condition of the failed temperature sensor; the second processing unit is specifically used to control the vehicle to perform vehicle power limitation processing; after the vehicle is powered off, the The situation of the failed temperature sensor and the fault information corresponding to the situation of the failed temperature sensor; the third processing unit is specifically used to control the vehicle to perform delayed high-voltage processing; after the vehicle is powered off, the failure temperature is retained Fault information corresponding to the status of the sensor and the failed temperature sensor, and prohibiting the vehicle from being powered on again.

In one embodiment of the present disclosure, the device further includes: a key sensor judgment module, used to judge whether the failed temperature sensor is a set temperature sensor; and a sampling value elimination module, used to judge if the failed temperature sensor is a set temperature sensor. If the temperature sensor is fixed, the temperature sampling value corresponding to the failed temperature sensor is eliminated; the temperature value compensation module is used to compensate the highest temperature value and the lowest temperature value preset in the battery pack.

In one embodiment of the present disclosure, the temperature value compensation module is specifically configured to set the preset maximum temperature value as the sum of the temperature sampling value corresponding to the failed temperature sensor and the compensation value; The certain minimum temperature value is set as the difference between the temperature sampling value corresponding to the failed temperature sensor and the compensation value.

The fault processing device of the embodiment shown in Figure 3 can be used to execute the technical solution of the above method embodiment. Its implementation principles and technical effects are similar and will not be described again here.

In one embodiment of the present disclosure, a vehicle is provided, which is used to implement the fault handling method as described in any of the above embodiments. The implementation principles and technical effects are similar and will not be described again here.

FIG. 4 is a schematic structural diagram of an electronic device in an embodiment of the present disclosure. Referring specifically to FIG. 4 below, a schematic structural diagram of an electronic device 400 suitable for implementing an embodiment of the present disclosure is shown. The electronic device 400 in the embodiment of the present disclosure may include, but is not limited to, mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablets), PMPs (portable multimedia players), vehicle-mounted terminals ( Mobile terminals such as car navigation terminals), wearable terminal devices, etc., and fixed terminals such as digital TVs, desktop computers, smart home devices, etc. The electronic device shown in FIG. 4 is only an example and should not impose any limitations on the functions and scope of use of the embodiments of the present disclosure.

As shown in FIG. 4, the electronic device 400 may include a processing device (eg, central processing unit, graphics processor, etc.) 401, which may be loaded into a random access device according to a program stored in a read-only memory (ROM) 402 or from a storage device 408. The program in the memory (RAM) 403 performs various appropriate actions and processes to implement the fault handling method according to the embodiments of the present disclosure. In the RAM 403, various programs and data required for the operation of the terminal device 400 are also stored. The processing device 401, ROM 402 and RAM 403 are connected to each other via a bus 404. An input/output (I/O) interface 405 is also connected to bus 404.

Generally, the following devices may be connected to the I/O interface 405: input devices 406 including, for example, a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; including, for example, a liquid crystal display (LCD), speakers, vibration An output device 407 such as a computer; a storage device 408 including a magnetic tape, a hard disk, etc.; and a communication device 404. The communication device 404 may allow the terminal device 400 to communicate wirelessly or wiredly with other devices to exchange data. Although FIG. 4 shows the terminal device 400 having various means, it should be understood that implementation or possession of all illustrated means is not required. More or fewer means may alternatively be implemented or provided.

In particular, according to embodiments of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, the computer program including program code for executing the method shown in the flowchart, thereby achieving the above Described troubleshooting method. In such embodiments, the computer program may be downloaded and installed from the network via communication device 404, or from storage device 408, or from ROM 402. When the computer program is executed by the processing device 401, the above-mentioned functions defined in the method of the embodiment of the present disclosure are performed.

It should be noted that the computer-readable medium mentioned above in the present disclosure may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the above two. The computer-readable storage medium may be, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination thereof. More specific examples of computer readable storage media may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard drive, random access memory (RAM), read only memory (ROM), removable Programmed read-only memory (EPROM or flash memory), fiber optics, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

In this disclosure, a computer-readable storage medium may be any tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code therein. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device . Program code embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wire, optical cable, RF (radio frequency), etc., or any suitable combination of the above.

In some embodiments, the client and server can communicate using any currently known or future developed network protocol such as HTTP (HyperText Transfer Protocol), and can communicate with digital data in any form or medium. (e.g., communications network) interconnection. Examples of communication networks include local area networks ("LAN"), wide area networks ("WAN"), the Internet (e.g., the Internet), and end-to-end networks (e.g., ad hoc end-to-end networks), as well as any currently known or developed in the future network of.

The above-mentioned computer-readable medium may be included in the above-mentioned electronic device; it may also exist independently without being assembled into the electronic device.

The computer-readable medium carries one or more programs. When the one or more programs are executed by the terminal device, the terminal device implements the fault handling method as described in any embodiment.

Computer program code for performing the operations of the present disclosure may be written in one or more programming languages, including but not limited to object-oriented programming languages—such as Java, Smalltalk, C++, and Includes conventional procedural programming languages—such as "C" or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In situations involving remote computers, the remote computer can be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as an Internet service provider through Internet connection).

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operations of possible implementations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, segment, or portion of code that contains one or more logic functions that implement the specified executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown one after another may actually execute substantially in parallel, or they may sometimes execute in the reverse order, depending on the functionality involved. It will also be noted that each block of the block diagram and/or flowchart illustration, and combinations of blocks in the block diagram and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or operations. , or can be implemented using a combination of specialized hardware and computer instructions.

The units involved in the embodiments of the present disclosure can be implemented in software or hardware. Among them, the name of a unit does not constitute a limitation on the unit itself under certain circumstances.

The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), Systems on Chips (SOCs), Complex Programmable Logical device (CPLD) and so on.

In the context of this disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media may include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media would include one or more wire-based electrical connections, laptop disks, hard drives, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

The above description is only a description of the preferred embodiments of the present disclosure and the technical principles applied. Those skilled in the art should understand that the disclosure scope involved in the present disclosure is not limited to technical solutions composed of specific combinations of the above technical features, but should also cover solutions composed of the above technical features or without departing from the above disclosed concept. Other technical solutions formed by any combination of equivalent features. For example, a technical solution is formed by replacing the above features with technical features with similar functions disclosed in this disclosure (but not limited to).

Furthermore, although operations are depicted in a specific order, this should not be understood as requiring that these operations be performed in the specific order shown or performed in a sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, although several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are merely example forms of implementing the claims.

Claims (10)

1. A method of fault handling, the method comprising:

judging whether each temperature sensor in the battery pack is a failure temperature sensor or not;

counting the condition of the failure temperature sensor;

comparing the condition of the failure temperature sensor with a set condition to obtain a comparison result;

and controlling the vehicle to execute a fault processing flow matched with the comparison result based on the comparison result.

2. The method of claim 1, wherein the set of conditions comprises a first set of conditions, a second set of conditions, and a third set of conditions;

based on the comparison result, controlling the vehicle to execute a fault processing flow matched with the comparison result, including:

controlling a vehicle to execute a fault processing flow matched with a first set condition under the condition that the condition of the failure temperature sensor meets the first set condition;

Controlling the vehicle to execute a fault processing flow matched with a second set condition under the condition that the condition of the failure temperature sensor meets the second set condition;

and controlling the vehicle to execute a fault processing flow matched with the third setting condition under the condition that the condition of the failure temperature sensor meets the third setting condition.

3. The method of claim 2, wherein the failure of the temperature sensor comprises: a first number of failure temperature sensors within the same battery module, and a second number of failure temperature sensors within the battery pack;

wherein the first setting condition includes: the first number is equal to a first threshold value, the second number is smaller than or equal to a second threshold value, and the fault time exceeds a preset duration;

the second setting condition includes: the first number is equal to a third threshold value, the second number is smaller than or equal to a fourth threshold value, and the fault time exceeds a preset duration;

the third setting condition includes: the first number is greater than or equal to a fifth threshold, the second number is greater than a fourth threshold, and the failure time exceeds a preset duration;

the first threshold is less than the third threshold, the third threshold is less than the fifth threshold, and the second threshold is less than the fourth threshold.

4. A method according to claim 3, wherein controlling the vehicle to perform a fault handling procedure matching the first set condition comprises:

controlling the vehicle to display prompt information, wherein the prompt information is used for indicating that a failure temperature sensor exists for a driver;

after the vehicle is powered down, eliminating the condition of the failure temperature sensor and fault information corresponding to the condition of the failure temperature sensor;

and controlling the vehicle to execute a fault processing flow matched with the second setting condition, comprising:

controlling the vehicle to carry out whole vehicle power limiting treatment;

after the vehicle is powered down, eliminating the condition of the failure temperature sensor and fault information corresponding to the condition of the failure temperature sensor;

and controlling the vehicle to execute a fault processing flow matched with the third setting condition, comprising:

controlling the vehicle to perform delay low-voltage high-voltage treatment;

after the vehicle is powered down, the failure temperature sensor is kept, fault information corresponding to the failure temperature sensor is kept, and the vehicle is prohibited from being powered up again.

5. The method according to claim 1, wherein the method further comprises:

Judging whether the failure temperature sensor is a set temperature sensor or not;

if the failure temperature sensor is a set temperature sensor, eliminating a temperature sampling value corresponding to the failure temperature sensor;

and compensating the preset highest temperature value and the preset lowest temperature value in the battery pack.

6. The method of claim 5, wherein compensating for the predetermined maximum temperature value and minimum temperature value in the battery pack comprises:

setting the preset highest temperature value as the sum of a temperature sampling value and a compensation value corresponding to the failure temperature sensor;

and setting the preset minimum temperature value as the difference between the temperature sampling value corresponding to the failure temperature sensor and the compensation value.

7. A fault handling apparatus, the apparatus comprising:

the failure judging module is used for judging whether each temperature sensor in the battery pack is a failure temperature sensor or not;

the failure condition statistics module is used for counting the condition of the failure temperature sensor;

the failure condition judging module is used for comparing the condition of the failure temperature sensor with a set condition to obtain a comparison result;

And the fault processing module is used for controlling the vehicle to execute a fault processing flow matched with the comparison result based on the comparison result.

8. An electronic device, the electronic device comprising:

one or more processors;

a storage means for storing one or more programs;

the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of any of claims 1-6.

9. 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 method according to any of claims 1-6.

10. A vehicle, characterized in that it comprises an electronic device as claimed in claim 8.