Power-off monitoring method for electric vehicle and electronic equipment

Abstract

The invention provides a power-off monitoring method for an electric vehicle, and the method comprises the steps: carrying out the power-off monitoring of the electric vehicle through a real-time monitoring system comprising a vehicle-mounted monitoring terminal after the high-voltage power-off of the electric vehicle, and starting the power-off monitoring timing, and enabling the power-off monitoring timing to be used for ending the power-off monitoring when the timing is completed; during the power-off monitoring period, identifying the trigger type of the received high-voltage power-on request; and according to the trigger type, selecting whether to end and reset the power-off monitoring timing, when the trigger type of the high-voltage power-on request is identified to belong to a first type, ending and resetting the power-off monitoring timing, and when the trigger type of the high-voltage power-on request is identified to belong to a second type, not ending and not resetting the power-off monitoring timing. The invention also relates to a corresponding computer program product and an electronic device. According to the method and the device, the wake-up duration of the functional parts related to the RTM system can be reduced under the condition that the power-off monitoring requirement is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric vehicles, and in particular to a method for monitoring power-off of an electric vehicle, a computer program product and an electronic device. BACKGROUND

[0002] With the popularity of electric vehicles, their safety management has attracted much attention. After the high-voltage system of the vehicle is powered off, the state of the vehicle still needs to be continuously monitored. This can be achieved by a real-time monitoring (RTM) system.

[0003] Currently, when the RTM system executes the monitoring process after the high-voltage power-off, if other systems of the vehicle (such as the vehicle controller, the battery management system, etc.) issue a high-voltage power-on request, the current monitoring period of the RTM system will be forcibly interrupted by the high-voltage power-on request. The vehicle enters a high-voltage power-on state. After the vehicle is powered off again, a new and complete cycle of power-off monitoring process will be started.

[0004] However, this approach has some drawbacks. In particular, in the parked state of the vehicle, the power-off monitoring may be interrupted multiple times by the high-voltage power-on request and restarted afterwards. The RTM system repeatedly starts the monitoring task. This causes the related controller of the RTM system to be in a long-term wake-up working state due to the inability to complete a complete monitoring period and smoothly hibernate.

[0005] This unnecessary long-term wake-up not only leads to an increase in power consumption, but more seriously, it accelerates the aging of the related controller, shortens its service life, and thus increases the long-term use cost and failure risk of the vehicle.

[0006] Therefore, the prior art has some deficiencies in the power-off monitoring of electric vehicles. SUMMARY

[0007] The present application aims to provide an improved method for monitoring power-off of an electric vehicle, as well as a corresponding computer program product and electronic device, to overcome at least one of the deficiencies of the prior art.

[0008] According to a first aspect of the present application, a method for monitoring power-off of an electric vehicle is provided, wherein the method comprises the following steps: - after the electric vehicle is powered off, the electric vehicle is monitored by means of a real-time monitoring system comprising an on-board monitoring terminal and a power-off monitoring timer is started, the power-off monitoring timer being used to end the power-off monitoring when the timer is completed; - during the power-off monitoring, the trigger type of a received high-voltage power-on request is identified; and - according to the trigger type of the high-voltage power-up request, selecting whether to end and reset the power-down monitoring timing, wherein in the case that the trigger type of the high-voltage power-up request is identified as belonging to the first type and the corresponding high-voltage power-up request operation is performed, the power-down monitoring timing is ended and reset, and in the case that the trigger type of the high-voltage power-up request is identified as belonging to the second type and the corresponding high-voltage power-up request operation is performed, the power-down monitoring timing is not ended and not reset.

[0009] According to the present application, if a high-voltage power-up request occurs during the power-down monitoring, the current power-down monitoring will not be directly ended, but the trigger type of the high-voltage power-up request will be considered in order to select different response manners. By identifying the trigger type of the high-voltage power-up request during the power-down monitoring, different operations can be performed for different trigger types. For the high-voltage power-up request of a specific trigger type, the power-down monitoring timing will not be directly ended and reset. Thus, the wake-up time of the functional components related to the RTM system can be reduced under the condition that the power-down monitoring requirement is met. This helps to reduce the energy consumption and delay the aging of the related functional components.

[0010] According to the exemplary embodiments of the present application, the second type includes a low-voltage battery feeding trigger type, wherein the high-voltage power-up request is triggered by a feeding request of a low-voltage battery of the vehicle.

[0011] If the trigger type of the high-voltage power-up request is identified as the low-voltage battery feeding trigger type in step S2, the power-down monitoring can be continued and the power-down monitoring timing can be continued during the execution of the high-voltage power-up operation in response to the feeding request of the low-voltage battery.

[0012] According to the exemplary embodiments of the present application, the second type includes a remote upgrade trigger type, wherein the high-voltage power-up request is triggered by a remote upgrade request.

[0013] If the high-voltage power-up request is identified as the remote upgrade trigger type in step S2, the power-down monitoring and the power-down monitoring timing can be suspended, and the power-down monitoring and the power-down monitoring timing can be continued after the corresponding remote upgrade operation is ended.

[0014] Optionally, the power-down monitoring method further comprises: if the remote upgrade operation involves the control unit of the on-board monitoring terminal and the high-voltage battery, suspending the power-down monitoring timing before the remote upgrade operation is performed, and sending the current power-down monitoring timing information to the remote upgrade system, and after the remote upgrade operation is completed, obtaining the power-down monitoring timing information from the remote upgrade system, so as to continue the power-down monitoring timing based on the power-down monitoring timing information. Through such interaction with the remote upgrade system, it can be allowed to suspend the power-down monitoring timing when the remote upgrade operation involving the control unit of the on-board monitoring terminal and the high-voltage battery is performed without having to end the power-down monitoring timing.

[0015] Alternatively or additionally, the power-down monitoring method can further comprise: if the remote upgrade operation involves the on-board monitoring terminal but not the control unit of the high-voltage battery, pausing the power-down monitoring timing before performing the remote upgrade operation, sending the current power-down monitoring timing information to the control unit of the high-voltage battery, and after the remote upgrade operation is completed, obtaining the power-down monitoring timing information from the control unit of the high-voltage battery so as to continue the power-down monitoring timing based on the power-down monitoring timing information.

[0016] In particular, if the remote upgrade request involves the data processing module of the on-board monitoring terminal but not the data uploading module of the on-board monitoring terminal and the control unit of the high-voltage battery, during the pausing of the power-down monitoring and the pausing of the power-down monitoring timing, the data uploading module receives and stores the alarm signal and the related monitoring data from the control unit of the high-voltage battery in response to the alarm signal of the control unit of the high-voltage battery. After the remote upgrade operation is completed, the data uploading module can retransmit the alarm signal and the related monitoring data received and stored during the pausing of the power-down monitoring to the background server of the real-time monitoring system.

[0017] According to the exemplary embodiments of the present application, the second type includes a remote upgrade trigger type. If it is identified in step S2 that the high-voltage power-on request is of the remote upgrade trigger type, the functional components involved in the remote upgrade request are identified so as to decide whether to continue the power-down monitoring timing or to pause the power-down monitoring timing when performing the remote upgrade request.

[0018] Optionally, if the remote upgrade request involves the data processing module of the on-board monitoring terminal but not the data acquisition module of the on-board monitoring terminal, the power-down monitoring timing is continued, the data acquisition module continues the data acquisition for the power-down monitoring, and the acquired data is stored in the storage unit of the data acquisition module, and after the corresponding remote upgrade operation is completed, the data processing module processes the data stored in the storage unit of the data acquisition module and uploads the processing result through the data uploading module.

[0019] Optionally, if the remote upgrade request involves the data uploading module of the on-board monitoring terminal but not the data acquisition module and the data processing module of the on-board monitoring terminal, the power-down monitoring timing is continued, the data acquisition module and the data processing module continue the data acquisition and processing for the power-down monitoring, the data processing module stores the processing result and uploads the processing result through the data uploading module after the corresponding remote upgrade operation is completed.

[0020] Optionally, if the remote upgrade request involves the data acquisition module of the on-board monitoring terminal, the power-down monitoring and the power-down monitoring timing are paused, and after the upgrade is completed, the power-down monitoring is continued and the power-down monitoring timing is continued.

[0021] According to exemplary embodiments of the present application, the first type comprises at least one of: a vehicle start trigger type, wherein the high voltage power up request is triggered by a vehicle start request; a high voltage battery charging trigger type, wherein the high voltage power up request is triggered by a high voltage battery charging request.

[0022] According to a second aspect of the present application, there is provided a computer program product comprising computer program instructions, wherein the computer program instructions, when executed by one or more processors, enable the one or more processors to perform the power down monitoring method according to the present application.

[0023] According to a third aspect of the present application, there is provided an electronic device, wherein the electronic device comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor is enabled to perform the power down monitoring method according to the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The principles, features and advantages of the present application can be better understood by the following detailed description of the application, taken in conjunction with the accompanying drawings. The drawings include: Figure 1 An electric vehicle according to exemplary embodiments of the present application is schematically illustrated; Figure 2 A flowchart of a power down monitoring method for an electric vehicle according to exemplary embodiments of the present application is schematically illustrated; Figure 3 A flowchart of step S3 of a power down monitoring method according to exemplary embodiments of the present application is schematically illustrated; and Figure 4 A vehicle-mounted monitoring terminal according to exemplary embodiments of the present application is schematically illustrated.

[0025] LIST OF REFERENCE NUMERALS DETAILED DESCRIPTION

[0026] In order to make the technical problems to be solved, technical solutions and beneficial technical effects of the present application more clearly understood, the present application will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the protection scope of the present application.

[0027] Figure 1 An electric vehicle 1 according to exemplary embodiments of the present application is schematically illustrated. Figure 2 A flowchart of a power down monitoring method for an electric vehicle 1 according to exemplary embodiments of the present application is schematically illustrated. Figure 2The illustrated power-off monitoring method can be applicable, for example, to a Figure 1 The illustrated electric vehicle 1.

[0028] The electric vehicle 1 can include a plug-in hybrid electric vehicle (PHEV), an extended-range electric vehicle (EREV), and / or a battery electric vehicle (BEV). As illustrated, Figure 1 As illustrated, the electric vehicle 1 is provided with a high-voltage battery 11. The high-voltage battery 11 is configured to provide driving force for driving the electric vehicle 1 to travel. The high-voltage battery 11 can also be referred to as a power battery. The high-voltage battery 11 can include, for example, a lithium-ion battery (e.g., a lithium iron phosphate battery or a ternary lithium-ion battery, etc.), a lead-acid battery, or a nickel-hydrogen battery, etc., without limitation.

[0029] In order to improve safety and strengthen the safety management of the electric vehicle 1, the electric vehicle 1 can be monitored by a real-time monitoring (RTM) system. The real-time monitoring system can include an on-board monitoring terminal 12 of the electric vehicle 1.

[0030] The on-board monitoring terminal 12 can be connected to a plurality of functional components of the electric vehicle 1 via a communication network. The communication network can be configured as a vehicle bus (e.g., a CAN bus) or other common wired or wireless communication network. Thus, the on-board monitoring terminal 12 can obtain monitoring data from the plurality of functional components of the electric vehicle 1 by accessing the communication network.

[0031] The monitoring data can include, among other things, high-voltage battery data. As an example, the on-board monitoring terminal 12 can be connected to a battery health manager, which can include a combination of hardware and / or software capable of monitoring battery parameters such as battery temperature, battery voltage, battery current, battery state of charge (SOC), battery state of health (SOH), charging rate, input / output power, etc. The on-board monitoring terminal 12 can receive real-time monitoring data from the battery health manager regarding the voltage, current, and / or temperature, etc. of the high-voltage battery 11.

[0032] The real-time monitoring system can also include a background server 2 to which the on-board monitoring terminal 12 can be communicatively connected, thereby enabling the real-time monitoring data to be sent to the background server 2. The background server 2 can include, for example, an enterprise platform server and a public platform server. The enterprise platform server can perform fault analysis based on the received monitoring data. When a fault is identified, the enterprise platform server can trigger a corresponding alarm. The enterprise platform server can be communicatively connected to the public platform server. The enterprise platform server can be configured to transmit data collected by the on-board monitoring terminal 12 to the public platform server. The enterprise platform server and / or the public platform server can be configured as a cloud server.

[0033] After the high-voltage power-off of the electric vehicle 1, the real-time monitoring system can continue to monitor the high-voltage battery 11.

[0034] Figure 1 It is also shown that the electric vehicle 1 can also be provided with a low voltage battery 13. It is understood by the skilled person that the expressions "high voltage battery", "low voltage battery" and "high voltage power up" are intended to express their specific meaning in the field of electric vehicles and are not intended to describe the specific size of the voltage with "high" or "low".

[0035] As Figure 2 shown, the power down monitoring method for the electric vehicle 1 can comprise a step S10, a step S20 and a step S30.

[0036] In step S10, after the electric vehicle 1 performs a high voltage power down, the electric vehicle 1 is monitored by means of a real time monitoring system comprising the on-board monitoring terminal 12 and a power down monitoring timer is started. The power down monitoring timer is used to end the power down monitoring when the timer is completed. The power down monitoring timer is for example a countdown T_RTM. When this countdown is ended, i.e. T_RTM=0, it means that the complete power down monitoring is ended.

[0037] During the power down monitoring, a high voltage power up request R_HV_ON can be generated for example due to a user operation. In this case, step S20 can be executed.

[0038] In step S20, during the power down monitoring, the trigger type of the received high voltage power up request is identified.

[0039] In step S30, depending on the trigger type of the high voltage power up request, it is selected whether to end and reset the power down monitoring timer or not. In case the trigger type of the high voltage power up request is identified to belong to the first type and the corresponding high voltage power up request operation is executed, the power down monitoring timer is ended and reset. In case the trigger type of the high voltage power up request is identified to belong to the second type and the corresponding high voltage power up request operation is executed, the power down monitoring timer is not ended and not reset.

[0040] According to the conventional power down monitoring method, if the electric vehicle 1 performs a high voltage power up operation during the power down monitoring, the present power down monitoring will be ended and the power down monitoring timer is accordingly reset. This makes the power down monitoring to be interrupted by various high voltage power up requests and to start a new cycle of power down monitoring afterwards, which causes the related functional components of the RTM system, such as the controllers, to be woken up for a long time, leading to a shorter service life and an increased power consumption.

[0041] According to the present application, by identifying the trigger type of the high-voltage power-on request during the power-down monitoring, different operations can be performed for different trigger types. For a high-voltage power-on request of a specific trigger type, the power-down monitoring timer is not directly ended and reset. Thus, the wake-up time of the functional components related to the RTM system can be reduced to reduce the energy consumption and delay the aging of the related functional components while meeting the power-down monitoring requirements.

[0042] If no high-voltage power-on request R_HV_ON is generated during the entire power-down monitoring, step S40 can be performed. In step S40, the power-down monitoring is performed until the power-down monitoring timer ends.

[0043] The "power-down monitoring period" refers to the period from starting the power-down monitoring timer to ending the power-down monitoring timer.

[0044] The power-down monitoring timer is, for example, a 24-hour countdown. Once the 24-hour countdown is completed, the power-down monitoring ends.

[0045] The power-down monitoring can be continuously performed during the duration of the power-down monitoring timer. Alternatively, the power-down monitoring can also be performed intermittently. For example, during the duration of the power-down monitoring timer, the vehicle-mounted monitoring terminal 12 can be woken up every 2 hours. After being woken up, the vehicle-mounted monitoring terminal 12 can perform data acquisition, processing and uploading, and then go to sleep again. After the power-down monitoring timer ends, the vehicle-mounted monitoring terminal 12 is no longer periodically woken up.

[0046] The trigger type of the high-voltage power-on request can include, for example, a vehicle start trigger type, a high-voltage battery charging trigger type, a low-voltage battery feeding trigger type, or an over-the-air (OTA) trigger type, etc.

[0047] The vehicle start trigger type can mean that the high-voltage power-on request is triggered by a vehicle start request. As an example, when the driver steps on the brake pedal of the vehicle and presses the start button or turns the key to the start gear, the electric vehicle 1 can be started. The vehicle start operation requires a high-voltage power-on request, so the generated high-voltage power-on request is of the vehicle start trigger type.

[0048] The high-voltage battery charging trigger type can mean that the high-voltage power-on request is triggered by a high-voltage battery charging request. For example, when the user inserts a charging gun into the charging interface of the vehicle and starts charging, the electrical circuit related to the charging of the high-voltage battery 11 needs to be started. The high-voltage power-on request generated thereby can be classified as the high-voltage battery charging trigger type.

[0049] A low-voltage battery discharge-triggered type indicates that a high-voltage power-on request is triggered by a low-voltage battery 13 discharge request. For example, when the vehicle is idle for a long time or low-voltage electrical equipment exhibits abnormal power consumption, causing the voltage of the low-voltage battery 13 to drop below a preset threshold, the vehicle's Battery Management System (BMS) or Vehicle Control Unit (VCU) can identify the charge status of the low-voltage battery 13. To prevent the low-voltage battery 13 from being too low in charge and affecting the normal starting or other functions of the vehicle, the high-voltage battery 11 can be used to charge the low-voltage battery 13. The high-voltage power-on request generated in this situation is a low-voltage battery discharge-triggered type.

[0050] A remote upgrade-triggered type indicates that the high-voltage power-on request is triggered by a remote upgrade request from the vehicle. For example, when the cloud platform sends a remote upgrade command to the vehicle, and the vehicle is in a safe parked state, the vehicle can perform the corresponding remote upgrade operation. To ensure that the low-voltage battery 13 has sufficient charge and stable voltage to support the remote upgrade operation (especially when the high-voltage battery 11 cannot supply power during a remote upgrade operation related to the high-voltage battery 11), a high-voltage power-on request can be generated. This type of high-voltage power-on request is a remote upgrade-triggered type.

[0051] According to an exemplary embodiment of this application, the first type may include a vehicle start-triggered type and / or a high-voltage battery charging-triggered type.

[0052] Alternatively or additionally, the second type may include low-voltage battery-triggered and / or remote upgrade-triggered types.

[0053] Figure 3 A flowchart illustrating step S3 of the power-down monitoring method according to an illustrative embodiment of this application is shown.

[0054] In this embodiment, the second type may include: low-voltage battery power-off triggered type and remote upgrade triggered type, wherein the high-voltage power-on request is triggered by the remote upgrade request.

[0055] like Figure 3 As shown, step S3 may include steps S31, S32, S33, S34 and S35.

[0056] In step S31, it can be determined whether the trigger type of the high-voltage power-on request is low-voltage battery power-off trigger type. If the trigger type of the high-voltage power-on request is low-voltage battery power-off trigger type, then step S32 can be executed; otherwise, step S33 can be executed.

[0057] In step S32, during the high-voltage power-on operation performed in response to the power supply request of the low-voltage battery 13, power-off monitoring continues and power-off monitoring timing continues.

[0058] In response to the power feeding request of the low-voltage battery 13, a high-voltage power-up operation can be performed to charge the low-voltage battery 13 with the high-voltage battery 11. In this case, the power-down monitoring of the system can continue to be executed without interruption. Thus, the power-down monitoring can continue to be executed and the power-down monitoring timing can continue to be counted. This can satisfy the requirement of the power-down monitoring and prevent the power-down monitoring from being repeatedly ended and restarted due to the power feeding request of the low-voltage battery 13.

[0059] In step S33, it can be determined whether the trigger type of the high-voltage power-up request is the remote upgrade trigger type. If the trigger type of the high-voltage power-up request is the remote upgrade trigger type, step S34 can be executed; if not, step S35 can be executed.

[0060] In step S34, if it is identified that the high-voltage power-up request is the remote upgrade trigger type, the power-down monitoring and the power-down monitoring timing can be suspended, and the power-down monitoring and the power-down monitoring timing can be continued after the corresponding remote upgrade operation is completed.

[0061] Optionally, in the case where the remote upgrade operation involves the on-board monitoring terminal 12, step S34 can include: suspending the power-down monitoring timing before the remote upgrade operation involving the on-board monitoring terminal 12 is executed, and sending the current power-down monitoring timing information to the remote upgrade system; and after the remote upgrade operation involving the on-board monitoring terminal 12 is completed, obtaining the power-down monitoring timing information from the remote upgrade system, so as to continue the power-down monitoring timing based on the power-down monitoring timing information.

[0062] According to the exemplary embodiments of the present application, if the remote upgrade operation involves the on-board monitoring terminal 12 and the control unit of the high-voltage battery 11, the power-down monitoring timing can be suspended before the remote upgrade operation is executed, and the current power-down monitoring timing information can be sent to the remote upgrade system, and after the remote upgrade operation is completed, the power-down monitoring timing information can be obtained from the remote upgrade system, so as to continue the power-down monitoring timing based on the power-down monitoring timing information.

[0063] Optionally, if the remote upgrade operation involves the on-board monitoring terminal 12 but does not involve the control unit of the high-voltage battery 11, the power-down monitoring timing can be suspended before the remote upgrade operation is executed, and the current power-down monitoring timing information can be sent to the control unit of the high-voltage battery 11, and after the remote upgrade operation is completed, the power-down monitoring timing information can be obtained from the control unit of the high-voltage battery 11, so as to continue the power-down monitoring timing based on the power-down monitoring timing information.

[0064] In Figure 3In the illustrated embodiment, if the trigger type of the high-voltage power-up request is neither the low-voltage battery feed trigger type nor the remote upgrade trigger type, it is determined that the trigger type of the high-voltage power-up request is the first type. In this case, step S35 is executed. In step S35, the power-down monitoring timer is ended and reset.

[0065] Figure 4 A vehicle monitoring terminal 12 according to an example embodiment of the present application is schematically shown.

[0066] As shown, the vehicle monitoring terminal 12 can include a data acquisition module 121, a data processing module 122, and a data uploading module 123. Figure 4

[0067] The data acquisition module 121 can be configured to acquire various state parameters of the vehicle. The data processing module 122 can be configured to analyze the data acquired by the data acquisition module 121. The data processing module 122 may, for example, determine whether the operation state of each component of the vehicle is normal based on the data acquired by the data acquisition module 121. The data uploading module 123 can upload the real-time monitoring data to the background server 2 of the real-time monitoring system.

[0068] In this embodiment, the second type includes the remote upgrade trigger type. If it is identified that the high-voltage power-up request is of the remote upgrade trigger type, the functional component involved in the remote upgrade request is further identified so as to determine whether to continue the power-down monitoring timer or suspend the power-down monitoring timer when the remote upgrade request is executed.

[0069] Optionally, if the remote upgrade request involves the data processing module 122 of the vehicle monitoring terminal 12 but does not involve the data acquisition module 121 of the vehicle monitoring terminal 12, the power-down monitoring timer is continued. In this case, the data acquisition module 121 can continue the data acquisition for power-down monitoring, and store the acquired data in the storage unit of the data acquisition module 121. After the remote upgrade operation is ended, the data processing module 122 processes the data stored in the storage unit of the data acquisition module 121 and uploads the processing result through the data uploading module 123.

[0070] Optionally, if the remote upgrade request involves the data uploading module 123 of the vehicle monitoring terminal 12 but does not involve the data acquisition module 121 and the data processing module 122 of the vehicle monitoring terminal 12, the power-down monitoring timer is continued. In this case, the data acquisition module 121 and the data processing module 122 can continue the data acquisition and processing for power-down monitoring, and the data processing module 122 can store the processing result and upload it through the data uploading module 123 after the remote upgrade operation is ended.

[0071] ​Optionally, if the remote upgrade request involves the data acquisition module 121 of the on-board monitoring terminal 12, the power-off monitoring is suspended and the power-off monitoring timing is suspended, and after the upgrade is completed, the power-off monitoring is continued and the power-off monitoring timing is continued.

[0072] According to one example embodiment of the present application, if it is identified that the high-voltage power-on request is a remote upgrade trigger type, the power-off monitoring is suspended and the power-off monitoring timing is suspended, and further, the functional components involved in the remote upgrade request are identified.

[0073] If the remote upgrade request involves the control unit of the high-voltage battery 11 and / or the data upload module 123 of the on-board monitoring terminal 12 but does not involve the data processing module 122 of the on-board monitoring terminal 12, the power-off monitoring is suspended and the power-off monitoring timing is suspended, and the current power-off monitoring timing information is recorded by the data processing module 122 of the on-board monitoring terminal 12. After the remote upgrade operation is completed, the power-off monitoring timing can be continued according to the power-off monitoring timing information recorded by the data processing module 122.

[0074] If the remote upgrade request involves the data processing module 122 of the on-board monitoring terminal 12 but does not involve the data upload module 123 of the on-board monitoring terminal 12 and the control unit of the high-voltage battery 11, during the suspension of the power-off monitoring and the suspension of the power-off monitoring timing, the high-voltage battery 11 ignores the power-off monitoring request from the on-board detection device, i.e. does not respond to the power-off monitoring request from the on-board detection device. Before the remote upgrade operation is performed, the current power-off monitoring timing information can be sent to the control unit of the high-voltage battery 11. In addition, during the suspension of the power-off monitoring and the suspension of the power-off monitoring timing, in response to the control unit of the high-voltage battery 11 identifying an abnormal event, an alarm signal can be generated and the RTM local data transmission network can be awakened. The RTM local data transmission network means the part of the data transmission network in the vehicle that is only associated with the RTM data transmission. For example, in response to the alarm signal of the control unit of the high-voltage battery 11, the data transmission unit of the control unit of the high-voltage battery 11, the data processing module 122 and the data upload module 123 of the on-board monitoring terminal 12 can be awakened. Since the data processing module 122 of the on-board monitoring terminal 12 is performing a remote upgrade operation, it cannot respond normally. The alarm signal of the control unit of the high-voltage battery 11 and the related monitoring data can be transmitted to the data upload module 123, which can temporarily store the monitoring data. After the remote upgrade operation is completed, the power-off monitoring timing information can be obtained from the control unit of the high-voltage battery 11 in order to continue the power-off monitoring timing based on the power-off monitoring timing information. When the power-off monitoring is continued, the data upload module 123 can upload the alarm signal and the related monitoring data received and stored during the suspension of the power-off monitoring to the background server 2. This is particularly helpful for improving safety and for strengthening safety management.

[0075] According to the exemplary embodiments of the present application, if it is identified in step S2 that the high-voltage power-on request is a remote upgrade trigger, the functional components involved in the remote upgrade request are further identified, so as to decide which one of the following operations is performed according to the functional components involved in the remote upgrade request: ending and resetting the power-down monitoring timing; continuing the power-down monitoring timing; suspending the power-down monitoring timing.

[0076] In particular, if the remote upgrade request involves the data acquisition module 121, the data processing module 122 and the data uploading module 123 of the vehicle-mounted monitoring terminal 12, the power-down monitoring timing is ended and reset. This helps to ensure the reliability of the power-down monitoring.

[0077] If at least one of the data acquisition module 121, the data processing module 122 and the data uploading module 123 of the vehicle-mounted monitoring terminal 12 does not need to respond to the remote upgrade request, the power-down monitoring timing can not be ended and reset.

[0078] The present application also relates to an electronic device. The electronic device can include a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor can perform the power-down monitoring method according to the exemplary embodiments of the present application. The processor can be a central processing unit, and can also be other general-purpose processors, digital signal processors, application-specific integrated circuits, ready-made programmable gate arrays or other programmable logic devices, etc.

[0079] The electronic device can be integrated into, implemented as or include the vehicle-mounted monitoring terminal 12, for example.

[0080] The present application also relates to a computer program product including computer program instructions. The computer program instructions, when executed by one or more processors, enable the one or more processors to perform the power-down monitoring method according to the exemplary embodiments of the present application.

[0081] The computer program instructions can be stored in a computer-readable storage medium. The computer-readable storage medium can include, for example, a high-speed random access memory, and can also include a non-volatile memory or a volatile solid-state memory device.

[0082] Although specific implementations of the present application are described in detail herein, they are given by way of example only and are not intended to limit the scope of the present application. Various alternatives, modifications and equivalents can be conceived without departing from the spirit and scope of the present application.

Claims

1. A method for power down monitoring for an electric vehicle, wherein, The power-down monitoring method comprises the following steps: - after the high-voltage power-down of the electric vehicle (1) is performed, the power-down monitoring of the electric vehicle (1) is performed and the power-down monitoring timing is started by means of a real-time monitoring system comprising an on-board monitoring terminal (12), the power-down monitoring timing being used to end the power-down monitoring when the timing is completed; - during the power-down monitoring, the trigger type of the received high-voltage power-up request is identified; and - depending on the trigger type of the high-voltage power-up request, it is selected whether to end and reset the power-down monitoring timing, wherein, in the case where the trigger type of the high-voltage power-up request is identified as belonging to a first type and the corresponding high-voltage power-up request operation is performed, the power-down monitoring timing is ended and reset, and in the case where the trigger type of the high-voltage power-up request is identified as belonging to a second type and the corresponding high-voltage power-up request operation is performed, the power-down monitoring timing is not ended and not reset.

2. The power-down monitoring method according to claim 1, wherein the second type comprises a low-voltage battery feed triggered type, wherein the high-voltage power-up request is triggered by a feed request of a low-voltage battery (13) of the vehicle; if the trigger type of the high-voltage power-up request is identified as the low-voltage battery feed triggered type in step S2, the power-down monitoring is continued to be performed and the power-down monitoring timing is continued to be performed during the execution of the high-voltage power-up operation in response to the feed request of the low-voltage battery (13).

3. The power-down monitoring method according to claim 1 or 2, wherein the second type comprises a remote upgrade triggered type, wherein the high-voltage power-up request is triggered by a remote upgrade request, if the high-voltage power-up request is identified as the remote upgrade triggered type in step S2, the power-down monitoring is suspended and the power-down monitoring timing is suspended, and after the corresponding remote upgrade operation is ended, the power-down monitoring is continued to be performed and the power-down monitoring timing is continued to be performed.

4. The power-down monitoring method according to claim 3, wherein the power-down monitoring method further comprises: - if the remote upgrade operation involves the on-board monitoring terminal (12) and a control unit of the high-voltage battery (11), the power-down monitoring timing is suspended before the remote upgrade operation is performed, and the current power-down monitoring timing information is sent to the remote upgrade system, and after the remote upgrade operation is completed, the power-down monitoring timing information is obtained from the remote upgrade system so as to continue the power-down monitoring timing based on the power-down monitoring timing information; and / or - if the remote upgrade operation involves the on-board monitoring terminal (12) but does not involve the control unit of the high-voltage battery (11), the power-down monitoring timing is suspended before the remote upgrade operation is performed, and the current power-down monitoring timing information is sent to the control unit of the high-voltage battery (11), and after the remote upgrade operation is completed, the power-down monitoring timing information is obtained from the control unit of the high-voltage battery (11) so as to continue the power-down monitoring timing based on the power-down monitoring timing information.

5. The power-down monitoring method according to claim 3 or 4, wherein If the remote upgrade request involves the data processing module (122) of the on-board monitoring terminal (12) but not the data upload module (123) of the on-board monitoring terminal (12) and the control unit of the high-voltage battery (11), during the suspension of the power-off monitoring and the suspension of the power-off monitoring timing, in response to the alarm signal of the control unit of the high-voltage battery (11), the data upload module (123) receives and stores the alarm signal and related monitoring data from the control unit of the high-voltage battery (11), and after the completion of the remote upgrade operation, the data upload module (123) retransmits the alarm signal and related monitoring data received and stored during the suspension of the power-off monitoring to the background server (2) of the real-time monitoring system.

6. The power-off monitoring method according to any one of claims 1 or 2, wherein, the second type includes a remote upgrade trigger type, wherein the high-voltage power-on request is triggered by a remote upgrade request; If it is identified in step S2 that the high-voltage power-on request is of the remote upgrade trigger type, the functional components involved in the remote upgrade request are identified, so as to decide whether to continue the power-off monitoring timing or suspend the power-off monitoring timing when the remote upgrade request is executed.

7. The power-off monitoring method according to claim 6, wherein, If the remote upgrade request involves the data processing module (122) of the on-board monitoring terminal (12) but not the data acquisition module (121) of the on-board monitoring terminal (12), the power-off monitoring timing is continued, the data acquisition module (121) continues the data acquisition for the power-off monitoring, and stores the acquired data in the storage unit of the data acquisition module (121), after the end of the corresponding remote upgrade operation, the data processing module (122) processes the data stored in the storage unit of the data acquisition module (121) and uploads the processing result through the data upload module (123); and / or If the remote upgrade request involves the data upload module (123) of the on-board monitoring terminal (12) but not the data acquisition module (121) and the data upload module (123) of the on-board monitoring terminal (12), the power-off monitoring timing is continued, the data acquisition module (121) and the data processing module (122) continue the data acquisition and processing for the power-off monitoring, the data processing module (122) stores the processing result and uploads the processing result through the data upload module (123) after the end of the corresponding remote upgrade operation; and / or If the remote upgrade request involves the data acquisition module (121) of the on-board monitoring terminal (12), the power-off monitoring and the power-off monitoring timing are suspended, and after the upgrade is completed, the power-off monitoring is continued and the power-off monitoring timing is continued.

8. The power-off monitoring method according to any one of claims 1-7, wherein, the first type includes at least one of: - a vehicle start trigger type, wherein the high-voltage power-on request is triggered by a vehicle start request; - a high-voltage battery charging trigger type, wherein the high-voltage power-on request is triggered by a high-voltage battery charging request.

9. A computer program product comprising computer program instructions, wherein, The computer program instructions, when executed by one or more processors, enable the one or more processors to perform the power down monitoring method according to any one of claims 1-8.

10. An electronic device, comprising: The electronic device includes a memory and a processor, wherein the memory stores computer program, and when the computer program is executed by the processor, the processor can perform the power down monitoring method according to any one of claims 1-8.

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