A UPS-like system and method for storing total mileage during abnormal power outages in military tracked vehicles

Abstract

This invention discloses a UPS-like energy storage system and method for abnormal power failures in military tracked vehicles, aiming to solve the problem of mileage data loss and distortion during abnormal power outages. The system is equipped with a boost circuit, energy storage medium, voltage monitoring module, and control unit, relying on a UPS-like energy storage structure to achieve power outage buffering. During operation, the system monitors the supply voltage in real time, identifies abnormal power failures through a delay-based discrimination mechanism, and triggers storage protection logic. Simultaneously, it performs storage medium status detection and repair, records mileage data using a multi-address redundant write mechanism, synchronously records write fault information, and improves data verification and result feedback mechanisms. This invention, based on a hardware and software co-design, effectively copes with complex power supply fluctuations, ensures the integrity and reliability of mileage data under abnormal power failure scenarios, meets the high reliability operation requirements of military tracked vehicles, and provides data support for equipment operation and maintenance and full lifecycle management.

Description

Technical Field

[0001] This invention belongs to the field of vehicle operation data recording and storage technology, specifically relating to a reliable storage system and method for total vehicle mileage under abnormal power failure conditions, which is particularly suitable for the full life cycle mileage data management and protection of military tracked vehicles in complex electromagnetic environments and harsh working conditions. Background Technology

[0002] With the iterative upgrades of electronic power technology, motors, and motor control technology, military tracked vehicles are gradually transforming from traditional mechanical and hydraulic mechanical transmissions towards electrification and informatization, resulting in a fundamental change in the vehicle's electrical architecture. Currently, the number of electrical devices in military tracked vehicles has increased significantly, and the complexity of the electrical architecture has risen dramatically. The vehicle's power supply system has evolved from a single low-voltage electrical architecture to a dual-network architecture of low-voltage and high-voltage, with deep coupling between the high-voltage and low-voltage electrical networks. This places higher demands on the stability and reliability of the vehicle's electrical system and power distribution modules.

[0003] In practical applications, failures in high-voltage or low-voltage power distribution modules can easily lead to abnormal power outages in the entire vehicle. This can range from minor issues like unnatural power loss and data loss to more serious problems such as complete electrical system malfunctions and even safety accidents, severely impacting the combat effectiveness and operational safety of military tracked vehicles. Total vehicle mileage is a core operating parameter for military tracked vehicles and a crucial reference indicator for component maintenance, lifespan management, and mission planning. The accuracy of this data directly affects vehicle maintenance efficiency and equipment reliability.

[0004] Existing mileage storage solutions for military tracked vehicles lack specific protection mechanisms for abnormal power outages. When a sudden failure occurs in the vehicle's high-voltage / low-voltage network, resulting in an abnormal power outage, mileage data cannot be written to the storage medium in a timely manner. This easily leads to the loss or distortion of total mileage data, rendering mileage statistics unreliable and impacting vehicle maintenance planning and equipment lifecycle management. Consequently, it fails to meet the high reliability and stability requirements of military tracked vehicles. Therefore, there is an urgent need for a method that can ensure the complete storage of total mileage data under abnormal power outage scenarios, solving the mileage data loss problem inherent in existing technologies. Summary of the Invention

[0005] This invention aims to provide a UPS-like system and method for storing total mileage during abnormal power outages in military tracked vehicles, addressing the shortcomings of existing technologies. This solution combines a UPS-like power supply structure design with targeted software control logic, enabling stable storage of mileage data under abnormal power outage conditions. It effectively prevents mileage data loss or distortion, ensuring the accuracy and reliability of vehicle mileage records under complex power outage conditions.

[0006] The specific technical solution is as follows: A UPS-like system for storing the total mileage of a military tracked vehicle during abnormal power outages, comprising: A boost circuit is used to boost the output voltage of a low-voltage battery to the target voltage V1. The energy storage medium is connected to the output of the boost circuit and is used for charging and storing energy when the vehicle is powered on, and for providing backup power when there is an abnormal power failure. The voltage monitoring module is used to collect the vehicle input voltage Vin and the energy storage medium voltage V1 in real time. The control unit is electrically connected to the voltage monitoring module and is used to perform voltage threshold comparison, abnormal power failure judgment and mileage storage control logic. The storage medium, electrically connected to the control unit, is used to store the vehicle's total mileage data and fault record information.

[0007] A method for storing the total mileage of a military tracked vehicle during abnormal power loss, based on the system described in claim 1, specifically... The control unit reads historical total mileage baseline data from the storage medium and updates the current total mileage in real time during normal vehicle operation; After an abnormal power failure occurs, the control unit determines that it is an abnormal power failure and initiates the abnormal mileage storage process: First, it checks the health status of the storage medium. If the status is abnormal, the storage medium is reset through software, and the number of resets is accumulated. If the number of resets exceeds the limit, a medium fault is reported. If the medium status is normal or normal after the reset, the current total mileage is written using a multi-address redundancy method. If the writing fails, the fault information is recorded and the address is switched to continue writing. After completing the preset number of writings, the final storage result is fed back based on the writing failure situation.

[0008] Furthermore, the specific criteria for the control unit to determine abnormal power failure are as follows: the vehicle input voltage Vin and the energy storage medium voltage V1 are continuously acquired through the voltage monitoring module, and Vin is compared with a first preset threshold and V1 is compared with a second preset threshold in real time. If any voltage is lower than the corresponding threshold, delay anti-shake is activated. After the delay ends, the comparison is performed again. If any voltage is still lower than the corresponding threshold, it is determined to be an abnormal power failure.

[0009] Furthermore, the software resets the storage medium by performing an erase operation on the storage medium, and simultaneously accumulates the reset count. If the reset count does not exceed a preset range, the health status of the storage medium is checked again.

[0010] Furthermore, the method of writing the current total mileage using multi-address redundancy specifically involves: determining whether the number of recorded times has reached the preset maximum number of records; if not, writing the total mileage data at the current address; if the writing is successful, updating to the next preset address to continue writing; if the writing fails, recording the failure address at the failure record address and accumulating the number of failures, then updating to the next preset address to continue writing.

[0011] Furthermore, the step of feeding back the final storage result based on the write failure situation is as follows: when the number of records has reached the preset maximum number of records, if the number of failures is less than the total number of records, a total mileage record success flag is fed back; if the number of failures is greater than or equal to the total number of records, a total mileage record failure fault is reported.

[0012] Furthermore, during normal vehicle operation, the control unit adds the mileage increment to the historical total mileage baseline data every preset kilometer, updating the current total mileage value.

[0013] Furthermore, the energy storage medium is an aluminum electrolytic capacitor, and the storage medium is an electrically erasable programmable read-only memory (EEPROM); the control unit is any one of a microcontroller, a field-programmable gate array (FPGA), or a system-on-a-chip (SOC).

[0014] Beneficial effects 1. This invention relies on a UPS-like energy storage structure design, which can stably provide working power when the vehicle experiences a sudden abnormal power outage, effectively avoiding the loss and distortion of mileage data caused by power outages, and ensuring the integrity and accuracy of vehicle mileage records. 2. By combining energy storage power supply guarantee with multi-address redundancy writing mechanism, the stability of mileage data storage under complex working conditions is significantly improved, effectively adapting to the complex electrical system and harsh power supply fluctuation operating environment of military tracked vehicles. 3. An additional storage medium anomaly self-check and repair mechanism is added, which synchronously records data write failure information, enabling timely identification of storage anomalies, reducing the risk of data write failure, and improving the long-term reliability of the system. 4. Improve the data storage logic and fault feedback mechanism under abnormal operating conditions to provide reliable data support for vehicle maintenance, life control and equipment life cycle management, and meet the high reliability operation requirements of military equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a UPS-based storage solution circuit design. Figure 2 A flowchart illustrating one implementation method for storing total mileage in case of abnormal power failure in military tracked vehicles based on UPS; Figure 3 This is a voltage-time diagram for a UPS. Detailed Implementation

[0016] The following detailed description, with reference to specific embodiments, illustrates a method for storing the total mileage of military tracked vehicles under abnormal power failure conditions proposed in this invention, to facilitate understanding and implementation of the technical solution. The technical solution of this invention is applicable to storing the total mileage of military tracked vehicles under abnormal power failure conditions. The complete implementation steps are as follows: A method for storing total mileage of military tracked vehicles based on a UPS-like system, comprising the following steps: Step 1: After the vehicle is powered on with low voltage, the vehicle's low-voltage battery supplies power to the controller. The boost circuit raises the vehicle's voltage Vin to V1. At voltage V1, the energy storage medium begins to charge and store energy until the voltage of the energy storage medium is equal to V1.

[0017] Step 2: After the vehicle is powered on with low voltage, the total mileage of the vehicle is read from the storage medium according to the protocol. After the vehicle is powered on with high voltage and starts driving, the vehicle speed is accumulated in real time. When the accumulated speed value reaches 1km, the accumulated mileage is automatically added to the previous total mileage to obtain the current total mileage value. Step 3: The control unit acquires Vin and V1 in real time through the voltage monitoring channel. The control unit monitors the magnitude of the two voltage values ​​in real time and converts the analog signal into a digital signal. Step 4: The control unit compares Vin with threshold 1 (Vthre1) and V1 with threshold 2 (Vthre2) in real time. To prevent abnormal voltage fluctuations, when either Vin or V1 is smaller than the threshold, after a delay, Vin is compared with threshold 1 and V1 with threshold 2 again. When any condition is met, an abnormal power failure condition is triggered, and the abnormal situation total mileage storage logic is entered. When the condition is not met, it is considered an occasional voltage fluctuation, no processing is performed, and the process returns to step 3.

[0018] Step 5: After entering an abnormal power failure, the system enters the total mileage storage logic for the abnormal power failure situation. It checks whether the storage medium is normal. If the storage medium is abnormal, it resets the storage medium through software. For example, if the storage medium is EEPROM, it erases the EEPROM and increments the reset count by one. Then it checks whether the reset count exceeds the limit. If it exceeds the limit, it reports that the storage medium is abnormal and the total mileage cannot be recorded. If it does not exceed the limit, it checks whether the storage medium is normal again.

[0019] Step 6: When the storage medium is normal, a multi-address redundancy method for recording total mileage is used. Total mileage data is written to multiple addresses on the storage medium. First, it is checked whether the number of recording attempts exceeds the set limit. If not, the total mileage data is written to the current address. After writing, it is checked whether the writing was successful. If successful, the address for recording the next total mileage is updated, and the number of recording attempts is checked again. If not, the total mileage data is recorded at the new address. This process is repeated until the number of recording attempts exceeds the limit, at which point recording stops. If a recording failure occurs during the process, the address where the mileage writing failed is recorded in the fault recording address, and the failure count is incremented by one for subsequent maintenance and verification. Simultaneously, a new recording address update is started, and the total mileage data is recorded at the new address. Finally, if the number of recording attempts exceeds the maximum number of recording attempts, it is checked whether the number of failures is less than the number of records. If the condition is not met, a total mileage recording failure is reported. If the condition is met, a total mileage recording success flag is fed back, and the total mileage storage method for abnormal vehicle power failure is completed.

[0020] To further illustrate the hardware implementation principle and timing process of the technical solution of this invention, supplementary explanations are provided regarding the operating principle and implementation process of this invention, in conjunction with the device circuit structure and voltage timing diagram: The method of this invention includes the following steps: like Figure 1 The circuit design principle of the UPS-based storage solution shown is as follows: after the vehicle receives low-voltage electricity, the energy storage medium is first charged through a boost circuit until the voltage at the back end of the boost circuit stabilizes. The energy storage medium can be, for example, an aluminum electrolytic capacitor. Combined with... Figure 3 The UPS voltage-time diagram is explained below. Taking the vehicle's electrical system (Vin) power-on time as the baseline, after power-on, due to the energy storage characteristics of the energy storage medium, the voltage stabilizes at V1 after being boosted by the boost circuit at time t1. After the vehicle completes its standardized process and self-check, it operates according to the driver's intentions. The period from t1 to t2 represents the vehicle's normal driving time. Every 1km driven, the accumulated mileage is automatically added to the previous total mileage to obtain the current total mileage value. At time t2, due to an anomaly in the vehicle's power supply system, the vehicle's voltage momentarily drops to 0V. At this time, the energy storage medium begins to discharge, causing V1 to slowly decrease. The period from t2 to t5 is the energy storage medium's discharge time. During this time, the control unit and the storage medium begin the total mileage recording logic operation.

[0021] The control unit collects Vin and V1 in real time. When the vehicle's power fails, the control unit compares Vin with threshold 1 (Vthre1) and V1 with threshold 2 (Vthre2) in real time. To prevent abnormal voltage fluctuations, when either Vin or V1 is smaller than the threshold, after a delay of (t4-t3), Vin is compared with threshold 1 and V1 with threshold 2 again. When any condition is met, the abnormal power failure condition is triggered, and the abnormal situation total mileage storage logic is entered. When the condition is not met, it is considered an occasional voltage fluctuation and no action is taken.

[0022] Upon determining that an abnormal power failure has occurred, the system enters the total mileage storage logic for the abnormal power failure situation. It checks whether the storage medium is normal. If the storage medium is abnormal, it resets the storage medium through software. For example, if the storage medium is EEPROM, it erases the EEPROM and increments the reset count by one. Then it checks whether the reset count has exceeded the limit. If it has exceeded the limit, it reports that the total mileage cannot be recorded due to the abnormal storage medium. If it has not exceeded the limit, it checks whether the storage medium is normal again.

[0023] When the storage medium is functioning normally, a multi-address redundancy method is used to record the total mileage, writing the total mileage data to multiple addresses on the storage medium. First, it checks if the number of recording attempts exceeds the set limit. If not, the total mileage data is written to the current address. After writing, it checks if the write was successful. If successful, the address for recording the next total mileage is updated, and the number of recording attempts is checked again. If not, the total mileage data is recorded at the new address. This process is repeated until the number of recording attempts exceeds the limit, at which point recording stops. If a recording failure occurs, the address where the mileage writing failed is recorded in the fault recording address, and the failure count is incremented for later inspection. Simultaneously, a new recording address update is initiated, and the total mileage data is recorded at the new address. Finally, if the number of recording attempts exceeds the maximum number of attempts, it checks if the number of failures is less than the number of attempts. If the condition is not met, a total mileage recording failure is reported. If the condition is met, a total mileage recording success flag is fed back, and the total mileage storage method for abnormal vehicle power loss is complete.

[0024] This invention provides a UPS-based method for storing the total mileage of military tracked vehicles under abnormal power-down conditions, solving the problem of low data storage success rate for total mileage under abnormal power-down conditions in military vehicles. The total mileage storage method for military tracked vehicles under abnormal power-down conditions provided in this embodiment achieves the same effect as the methods described above. Furthermore, this embodiment provides a process of coordinated hardware and software operation. The electronic equipment includes: a UPS-like circuit, a control unit, a voltage monitoring module, and a storage medium capable of communicating with the control unit to facilitate the storage of the total mileage data; on the software side: Figure 2The flowchart described can be understood as the software program of the control unit, the purpose of which is to... Figure 2 The software code that implements and executes the process. In this example, the software code is installed in the control unit and performs the defined functions in the example process during the operation of the control unit.

[0025] The functionality disclosed in this example is a systematic engineering project, encompassing both software and hardware circuitry, implemented through a combination of both. In this example, the control unit uses a microcontroller, and the storage medium is Electrically Erasable Programmable Read-Only Memory (EEPROM). It should be further clarified that "control unit" is a general term encompassing microcontrollers, Field Programmable Gate Arrays (FPGAs), System-on-Chip (SoC) processor chips, and other similar devices. The storage medium can be on-chip Flash, EPROM, flash memory, fiber optic cable, or portable compact disk read-only memory (CD-ROM). ROM, optical storage devices, magnetic storage devices, or any suitable combination thereof. Any device capable of achieving the above functions can implement the content of this patent. The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims. Further, this embodiment provides a computer-readable storage medium having computer-readable program instructions stored thereon, which are used to execute the vehicle mileage storage method in the above embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent processing scope of this application.

Claims

1. A UPS-like system for storing the total mileage of a military tracked vehicle during abnormal power outages, characterized in that, include: A boost circuit is used to boost the output voltage of a low-voltage battery to the target voltage V1. The energy storage medium is connected to the output of the boost circuit and is used for charging and storing energy when the vehicle is powered on, and for providing backup power when there is an abnormal power failure. The voltage monitoring module is used to collect the vehicle input voltage Vin and the energy storage medium voltage V1 in real time. The control unit is electrically connected to the voltage monitoring module and is used to perform voltage threshold comparison, abnormal power failure detection and mileage storage control logic. The storage medium, electrically connected to the control unit, is used to store the vehicle's total mileage data and fault record information.

2. A method for storing the total mileage of a military tracked vehicle during abnormal power failure based on the system described in claim 1, characterized in that: The control unit reads historical total mileage baseline data from the storage medium and updates the current total mileage in real time during normal vehicle operation. After an abnormal power failure occurs, the control unit determines that it is an abnormal power failure and initiates the abnormal mileage storage process: First, it checks the health status of the storage medium. If the status is abnormal, the storage medium is reset through software, and the number of resets is accumulated. If the number of resets exceeds the limit, a medium fault is reported. If the medium status is normal or normal after the reset, the current total mileage is written using a multi-address redundancy method. If the writing fails, the fault information is recorded and the address is switched to continue writing. After completing the preset number of writings, the final storage result is fed back based on the writing failure situation.

3. The method according to claim 2, characterized in that, The specific criteria for the control unit to determine abnormal power failure are as follows: the vehicle input voltage Vin and the energy storage medium voltage V1 are continuously acquired through the voltage monitoring module, and Vin is compared with the first preset threshold and V1 is compared with the second preset threshold in real time. If any voltage is lower than the corresponding threshold, the delay anti-shake is activated. After the delay ends, the comparison is performed again. If any voltage is still lower than the corresponding threshold, it is determined to be an abnormal power failure.

4. The method according to claim 2 or 3, characterized in that, The software resets the storage medium by performing an erase operation on the storage medium, and simultaneously accumulates the reset count. If the reset count does not exceed a preset range, the health status of the storage medium is checked again.

5. The method according to claim 2, characterized in that, The method of writing the current total mileage using multi-address redundancy is as follows: determine whether the number of recorded times has reached the preset maximum number of records. If not, write the total mileage data at the current address. If the writing is successful, update to the next preset address and continue writing. If the writing fails, record the failure address at the failure record address and accumulate the failure count, then update to the next preset address and continue writing.

6. The method according to claim 5, characterized in that, The specific steps for feeding back the final storage result based on the write failure status are as follows: when the number of records has reached the preset maximum number of records, if the number of failures is less than the total number of records, a total mileage record success flag is fed back; if the number of failures is greater than or equal to the total number of records, a total mileage record failure fault is reported.

7. The method according to claim 2, characterized in that, When the vehicle is running normally, the control unit adds the mileage increment to the historical total mileage baseline data every time a preset mileage is accumulated, and updates the current total mileage value.

8. The system according to claim 1, characterized in that, The energy storage medium is an aluminum electrolytic capacitor, and the storage medium is an electrically erasable programmable read-only memory (EEPROM); the control unit is any one of a microcontroller, a field-programmable gate array (FPGA), or a system-on-a-chip (SOC).

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