Power supply monitoring and automatic charging management system and implementation method thereof

Abstract

The invention discloses a power monitoring and automatic charging management system and an implementation method thereof. The system comprises a vehicle control unit, an automatic voltage detection system, a storage battery system, a power distribution system and a high-voltage power supply conversion system. A default voltage threshold value is pre-stored in the automatic voltage detection system, and the automatic voltage detection system is in information connection with the vehicle control unit and used for receiving the operation instruction and providing an awakening instruction. The storage battery system is electrically connected with the automatic voltage detection system, and the voltage of the storage battery system can be detected. The power distribution system is in information connection with the vehicle control unit and used for distributing electric power resources. The high-voltage power supply conversion system is electrically connected with the power distribution system and the storage battery system, provides high-voltage power and converts the high-voltage power into voltage suitable for the storage battery system. When the voltage is lower than a default threshold value, the vehicle control unit controls the power distribution system to drive the high-voltage power supply conversion system to act, and automatic charging management of the storage battery system is achieved.

Description

Technical Field

[0001] This invention relates to the field of vehicle power management technology, and in particular to a power monitoring and automatic charging management system and its implementation method. Background Technology

[0002] With increasing environmental awareness and technological advancements, electric vehicles are playing an increasingly important role in the global automotive market. However, electric vehicles still face some challenges during use, one of which is the inability to start the vehicle when the low-voltage battery (usually a 12V battery) is depleted.

[0003] In traditional internal combustion engine vehicles, the 12V battery is mainly used to start the engine and supply power to the vehicle's electronic systems. In electric vehicles, although the main power comes from the high-voltage battery pack, the 12V battery still plays an important role, providing power to the vehicle's control systems, lighting systems, entertainment systems, and so on.

[0004] However, existing electric vehicle designs have the following problems:

[0005] 1. Risk of battery depletion: Due to the silent nature of electric vehicles, users may unknowingly use in-vehicle devices (such as air conditioning, audio equipment, etc.) for extended periods, leading to excessive discharge of the 12V battery.

[0006] 2. Starting System Dependence: Most electric vehicles still rely on a 12V battery for their starting system and control unit. When the 12V battery is depleted, the vehicle cannot start even if the high-voltage battery pack has sufficient charge.

[0007] 3. Uneven charging: Existing charging systems mainly focus on charging high-voltage battery packs, and the charging management of 12V batteries is not perfect, which can easily lead to 12V batteries being in a sub-healthy state for a long time.

[0008] 4. Lack of early warning mechanism: Most electric vehicles lack an effective 12V battery power warning system, and users often only realize the problem when the vehicle cannot start.

[0009] 5. Limited emergency measures: When the 12V battery is dead, many electric vehicles lack an effective emergency start mechanism, and users can only seek external assistance, causing great inconvenience.

[0010] These issues not only affect the user experience but may also pose safety hazards in emergencies. For example, in remote areas or in severe weather conditions, a dead 12V battery may render the vehicle completely unusable, or even prevent the vehicle's communication system from being activated for assistance.

[0011] While some manufacturers have begun to address this issue and proposed solutions such as replacing traditional lead-acid batteries with lithium-ion batteries and adding battery monitoring systems, these solutions often increase vehicle costs and fail to fundamentally solve the power management problem. Therefore, an intelligent solution is needed that can comprehensively manage the vehicle's power system, particularly effectively preventing the 12V battery from running out of power and replenishing it promptly when needed. This will not only improve the reliability and user experience of electric vehicles but also provide crucial support for the development of more intelligent and electrified vehicles in the future. Summary of the Invention

[0012] The purpose of this invention is to provide a power monitoring and automatic charging management system and method to solve the above-mentioned problems existing in the prior art.

[0013] To achieve the above objectives, the present invention provides a power monitoring and automatic charging management system, comprising: a vehicle controller capable of sending an operation command; an automatic voltage detection system having pre-stored at least a default voltage threshold and connected to the vehicle controller for receiving the operation command from the vehicle controller and providing it with a wake-up command; a battery system electrically connected to the automatic voltage detection system, wherein a voltage generated by the battery system can be detected by the automatic voltage detection system; a power distribution system connected to the vehicle controller for distributing power resources; and a high-voltage power supply conversion system electrically connected to the power distribution system and the battery system for providing high-voltage power and converting the voltage to a voltage suitable for the battery system; wherein, when the voltage is lower than the default voltage threshold, the automatic voltage detection system generates the wake-up command and transmits it to the vehicle controller, causing the vehicle controller to control the power distribution system to drive the high-voltage power supply conversion system based on the wake-up command, and to provide the operation command to the automatic voltage detection system to achieve automatic charging management of the battery system.

[0014] In one embodiment, the power monitoring and automatic charging management system further includes a networked device that is communicatively connected to the vehicle controller. The vehicle controller can further send a charging status information to the client or receive the operation command through the networked device.

[0015] In one embodiment, the high-voltage power supply conversion system includes: a main battery pack for providing high-voltage power; a battery control system for monitoring and managing the status of the main battery pack; and a DC transformer for converting the high-voltage power of the main battery pack into a voltage suitable for the battery system.

[0016] This invention also provides an implementation method for a power monitoring and automatic charging management system, which includes the following steps:

[0017] An operation command is sent from a vehicle controller to an automatic voltage detection system.

[0018] The automatic voltage detection system has at least one default voltage threshold pre-stored;

[0019] The automatic voltage detection system detects a voltage of the battery system according to the operation command and compares the voltage with the default voltage threshold. When the voltage is lower than the default voltage threshold, the automatic voltage detection system generates a wake-up command.

[0020] Based on the wake-up command, the vehicle controller controls a power distribution system to operate;

[0021] This power distribution system controls the operation of a high-voltage power supply conversion system to achieve automatic charging management of the battery system.

[0022] In one embodiment, when the voltage is lower than the default threshold and the high-voltage power supply conversion system is activated, the vehicle controller determines whether to drive the power distribution system to control the high-voltage power supply conversion system to charge the battery system based on the amount of remaining available energy in the high-voltage power supply conversion system.

[0023] In one embodiment, when the battery system is charging or cannot be charged, it sends a charging status information to a remote user via a networked device.

[0024] In one embodiment, the vehicle controller can receive a charging control command from the remote user, enabling the vehicle controller to adjust the charging process according to the charging control command.

[0025] In one embodiment, the high-voltage power supply conversion system includes a main battery pack, a battery control system, and a DC transformer. The battery control system monitors the status of the main battery pack and can also control the DC transformer to convert high-voltage power into a voltage suitable for the battery system for charging based on the status of the main battery pack.

[0026] In one embodiment, the vehicle controller monitors the vehicle's operating status and the battery system's status, and adjusts the operation command sent to the automatic voltage detection system in real time based on the vehicle's operating status and the battery system's status. The operation command includes at least one of a voltage detection frequency, a default voltage threshold parameter adjustment, or a detection accuracy. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structural composition of the power monitoring and automatic charging management system of the present invention.

[0029] Figure 2 This is another embodiment of the high-voltage power supply conversion system of the present invention.

[0030] Figure 3 This is a schematic diagram of a system for setting up networked devices according to the present invention.

[0031] Figure 4 This is a flowchart of an automatic voltage detection system.

[0032] Figure 5 The following are the specific operating steps of the power monitoring and automatic charging management system of the present invention. Detailed Implementation

[0033] The following description contains specific information relating to exemplary embodiments of the invention. The accompanying drawings and detailed description are merely exemplary embodiments. However, the invention is not limited to these exemplary embodiments. Other variations and embodiments of the invention will occur to those skilled in the art. Unless otherwise stated, the same or corresponding components in the drawings are indicated by the same or corresponding reference numerals. Furthermore, the drawings and illustrations in this invention are generally not drawn to scale and are not intended to correspond to actual relative dimensions. The term "coupled" is defined as a connection, whether direct or indirect through intermediate components, and is not necessarily limited to physical connections. When the term "comprising" is used, it means "including but not limited to," which explicitly indicates an open inclusion or relationship of combinations, groups, series, and equivalents.

[0034] The terms "first" and "second," etc., used in the specification and accompanying drawings of this invention are used to distinguish different objects, rather than to describe a specific order. The invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] Please see Figure 1 This is a schematic diagram illustrating the structural composition of the power monitoring and automatic charging management system of the present invention. Figure 1As shown, the power monitoring and automatic charging management system 10 mainly includes: a vehicle controller 101, an automatic voltage detection system 102, a battery system 103, a power distribution system 104, and a high-voltage power supply conversion system 105. The vehicle controller 101, as the core control unit of the power monitoring and automatic charging management system 10, is responsible for coordinating the work of each system, formulating charging strategies, and sending an operation command M1. This operation command M1 is an external control command received by the vehicle controller 101, such as a control command pre-set by the vehicle owner and stored in the vehicle controller 101, and is not generated by the vehicle controller 101 itself. The automatic voltage detection system 102 pre-stores at least a default voltage threshold 1021 and is connected to the vehicle controller 101 to receive incoming power. The vehicle controller 101 receives the operation command M1 and provides it with a wake-up command M2. The battery system 103 is electrically connected to the automatic voltage detection system 102. The voltage generated by the battery system 103 can be detected by the automatic voltage detection system 102. The battery system 103 mainly provides power to various low-voltage electrical devices in the vehicle, typically a 12V battery. The power distribution system 104 is connected to the vehicle controller 101 and is responsible for allocating and managing the vehicle's power resources according to the instructions of the vehicle controller 101. The high-voltage power supply conversion system is electrically connected to the power distribution system and the battery system to provide high-voltage power and convert the voltage to a voltage suitable for the battery system. Under the command of the vehicle controller 101, the power distribution system 104 is responsible for coordinating the energy distribution between the high-voltage and low-voltage systems. It can flexibly adjust the power distribution strategy according to the real-time needs of the vehicle and the status of the battery system 103 to ensure stable power supply to each electrical system and optimize overall energy utilization efficiency.

[0036] As described above, after receiving the wake-up command M2, the vehicle controller 101 further formulates an optimal charging strategy based on the vehicle's operating status, the status of the battery system 103, and the available energy of the high-voltage power supply conversion system 105. The vehicle controller 101 can also adjust detection parameters by sending the operation command M1 to the automatic voltage detection system 102. The operation command M1 includes adjusting a voltage detection frequency, a default voltage threshold parameter, or a detection accuracy, etc. Simultaneously, the vehicle controller 101 is also responsible for controlling the power distribution system 104 to drive the high-voltage power supply conversion system 105 to achieve automatic charging management of the battery system 103.

[0037] As mentioned above, in this invention, the information connection between the vehicle controller 101, the automatic voltage detection system 102, the power distribution system 104, and the high-voltage power supply conversion system 105 can be achieved through an in-vehicle network (such as CAN bus, FlexRay, or Ethernet). This information connection method ensures high-speed and reliable data exchange between the systems, which is beneficial for achieving real-time control and rapid response.

[0038] Please see again Figure 2 Another embodiment of the high-voltage power supply conversion system of the present invention is shown in the figure as a high-voltage power supply conversion system 105. It includes a main battery pack 1051, a battery control system 1052, and a DC transformer 1053. The main battery pack 1051 is typically a high-voltage lithium battery pack, providing the primary power source for the entire vehicle. The battery control system 1052 is responsible for monitoring and managing the status of the main battery pack 1051, including parameters such as charge level, temperature, and charging / discharging current. The DC transformer 1053 primarily converts the high-voltage power from the main battery pack 1051 into low-voltage power (typically 12V) suitable for use by the battery system 103. This structural design of the high-voltage power supply conversion system 105 enables the high-voltage and low-voltage systems to work efficiently together. The battery control system 1052 continuously monitors the status of the main battery pack 1051 and transmits the information to the vehicle controller 101. Based on this information and the needs of the battery system 103, the vehicle controller 101 controls the operation of the DC transformer 1053, achieving efficient energy conversion and distribution. Furthermore, when the high-voltage power supply conversion system 105 intends to perform a charging management procedure, the battery control system 1052 further estimates the remaining available energy of the main battery pack 1051. Besides estimating the current charge level of the main battery pack 1051, it can also detect factors such as health status to provide the vehicle controller 101 with a suitable charging strategy. For example, if the main battery pack 1051 has sufficient remaining energy, the system may select a fast charging mode; if the remaining energy is limited, the system may select slow charging or delayed charging to ensure that the vehicle's critical functions are not affected. The vehicle controller 101 translates the formulated charging strategy into specific control commands, driving the power distribution system 104 to control the high-voltage power supply conversion system 105 to charge the battery system 103.

[0039] Please see again Figure 3This is a schematic diagram of the system with a networked device 106, which mainly provides remote monitoring and control capabilities for the system. As shown in the figure, the vehicle controller 101 can send charging status information M3 to a client 11 (i.e., the vehicle owner) through the networked device 106. The client 11 can view the vehicle's charging status in real time through a mobile application or web interface. Simultaneously, the client 11 can also further transmit the operation command M1 to the vehicle controller 101 for execution through the networked device 106, thereby realizing remote monitoring and control functions and improving the system's convenience and user experience.

[0040] Please see Figure 4 This is a flowchart of an automatic voltage detection system, such as... Figure 2 As shown, the normal operation process of the automatic voltage detection system 102 is as follows:

[0041] Step 201: The automatic voltage detection system 102 performs voltage detection on the battery system 103 according to the operation instruction M1 of the vehicle controller 101. If the operation instruction M1 contains a stop detection instruction, the automatic voltage detection system 102 stops detecting the battery system 103. If not, the automatic voltage detection system 102 proceeds to step 202.

[0042] Second step 202: After the automatic voltage detection system 102 detects the voltage of the battery system 103, it further actively compares the voltage of the battery system 103 with the default voltage threshold 1021.

[0043] Third step 203: As described in step 202, when the voltage is lower than the default voltage threshold 1021, the automatic voltage detection system 102 will generate the wake-up command M2 and send it to the vehicle controller 101. When the vehicle controller 101 receives the wake-up command M2, it will trigger the start of the charging management program; if the voltage is higher than the default voltage threshold 1021, it will return to step 201 to continue detection.

[0044] Please see Figure 5 The specific operation steps of the power monitoring and automatic charging management system of the present invention are as follows:

[0045] Voltage detection step 301: The automatic voltage detection system 102 detects whether the voltage of the battery system 103 is lower than the default voltage threshold 1021. If not, the voltage of the battery system 103 is continuously detected in step 301; if yes, proceed to step 302.

[0046] Wake-up step 302: The automatic voltage detection system 102 generates the wake-up command M2 and sends it to the vehicle controller 101.

[0047] Power distribution step 303: As described in step 302, after the vehicle controller 101 receives the wake-up command M2, it further drives the power distribution system 104 to operate, and the power distribution system 104 drives the high-voltage power supply conversion system 105 to start, so as to carry out subsequent charging operations.

[0048] Remaining power assessment step 304: As described in step 303, before the high-voltage power supply conversion system 105 starts charging, it will first check whether the estimated remaining power is sufficient; if sufficient, proceed to step 305; if not, shut down the entire system through the vehicle controller 101 and proceed to step 306.

[0049] Charging step 305: The high-voltage power supply conversion system 105 charges the battery system 103. After charging is completed, it returns to step 301 to continuously monitor the voltage of the battery system 103.

[0050] Connection step 306: When the voltage of the battery system 103 is insufficient, but the remaining power of the high-voltage power supply conversion system 105 is insufficient to charge the battery system 103, the vehicle controller 101 will send the charging status information to the vehicle owner through the network device 106. The message includes that the high-voltage power supply conversion system 105 of the vehicle does not have enough power to charge the battery system 103, and the vehicle owner should take further action as soon as possible. The charging status information sent can also be the status message of charging in step 305.

[0051] In summary, this invention provides an intelligent power monitoring and automatic charging management system and method. Through the coordinated operation of the vehicle controller, automatic voltage detection system, power distribution system, and high-voltage power supply conversion system, it realizes real-time monitoring and automatic charging management of the battery system, improves the efficiency and reliability of the vehicle power system, and takes into account user experience and safety. This proves that this invention can effectively improve the problem of conventional battery systems running out of power, and meets the requirements for an invention patent application. Therefore, this application is filed in accordance with the law.

[0052] Based on the above description, it is evident that various techniques can be used to implement the concepts described in this application without departing from the scope of these concepts. Furthermore, although the concepts have been described with specific reference to certain embodiments, those skilled in the art will recognize that changes in form and detail may be made without departing from the scope of these concepts. Thus, the described embodiments are to be considered illustrative rather than restrictive in all respects. Moreover, it should be understood that this application is not limited to the specific embodiments described above, but many rearrangements, modifications, and substitutions can be made without departing from the scope of the invention.

[0053] Explanation of reference numerals in the attached figures

[0054] 10: Power Monitoring and Automatic Charging Management System

[0055] 101: Vehicle Controller

[0056] 102: Automatic Voltage Detection System

[0057] 1021: Default voltage threshold

[0058] 103: Battery System

[0059] 104: Power Distribution System

[0060] 105: High-voltage power supply conversion system

[0061] 1051: Main battery pack

[0062] 1052: Battery Control System

[0063] 1053: DC Transformer

[0064] 106: Networking devices

[0065] 11: Client

[0066] 201: Steps

[0067] 202: Steps

[0068] 203: Steps

[0069] 301: Voltage Detection Procedure

[0070] 302: Wake-up Steps

[0071] 303: Power Distribution Steps

[0072] 304: Residual Power Assessment Steps

[0073] 305: Charging Steps

[0074] 306: Network Connection Steps

[0075] M1: Operation Instructions

[0076] M2: Wake-up command

[0077] M3: Charging Status Information

Claims

1. A power monitoring and automatic charging management system, comprising: a vehicle controller configured to send an operation instruction; an automatic voltage detection system pre-stored with at least one default voltage threshold and communicatively coupled to the vehicle controller, configured to receive the operation instruction from the vehicle controller and provide a wake-up instruction to the vehicle controller; a battery system electrically coupled to the automatic voltage detection system, wherein a voltage generated by the battery system is detectable by the automatic voltage detection system; a power distribution system communicatively coupled to the vehicle controller, configured to distribute power resources; and a high-voltage power supply conversion system electrically coupled to the power distribution system and the battery system, configured to provide high-voltage power and voltage conversion to a voltage suitable for the battery system. wherein When the voltage is lower than the default voltage threshold, the automatic voltage detection system generates the wake-up instruction and transmits the wake-up instruction to the vehicle controller, so that the vehicle controller controls the power distribution system to drive the high-voltage power supply conversion system to act based on the wake-up instruction, and provides the operation instruction to the automatic voltage detection system, so as to achieve automatic charging management of the battery system.

2. The power monitoring and automatic charging management system of claim 1, wherein, The power monitoring and automatic charging management system further comprises a networking device communicatively coupled to the vehicle controller, and the vehicle controller is further configured to send a charging status information to a client or receive the operation instruction through the networking device.

3. The power monitoring and automatic charging management system of claim 1, wherein, The high-voltage power supply conversion system comprises: a main battery pack configured to provide high-voltage power; a battery control system configured to monitor and manage the state of the main battery pack; and a DC transformer configured to convert the high-voltage power of the main battery pack to a voltage suitable for the battery system.

4. An implementation method of a power monitoring and automatic charging management system, comprising the following steps: sending an operation instruction from a vehicle controller to an automatic voltage detection system; pre-storing at least one default voltage threshold in the automatic voltage detection system; detecting a voltage of the battery system according to the operation instruction by the automatic voltage detection system, and comparing the voltage with the default voltage threshold, wherein when the voltage is lower than the default voltage threshold, the automatic voltage detection system generates a wake-up instruction; controlling a power distribution system to act based on the wake-up instruction by the vehicle controller; achieving automatic charging management of the battery system by the power distribution system through controlling a high-voltage power supply conversion system to act.

5. The method of claim 4, wherein the power monitoring and automatic charging management system further comprises: When the voltage is lower than the default threshold and the high-voltage power supply conversion system is started, the vehicle controller determines whether to drive the power distribution system to control the high-voltage power supply conversion system to charge the battery system according to the amount of remaining available energy of the high-voltage power supply conversion system.

6. The method of claim 4, wherein the power monitoring and automatic charging management system further comprises: When the battery system is charging or unable to charge, a charging status information is sent to a client through a networking device.

7. The implementation method of the power monitoring and automatic charging management system according to claim 6, characterized in that, The vehicle controller can receive the operation instruction from the client, so that the vehicle controller can adjust the detection parameters of the automatic voltage detection system according to the operation instruction.

8. The method of claim 5, wherein the power monitoring and automatic charging management system further comprises: The high-voltage power supply conversion system includes a main battery pack, a battery control system, and a DC transformer. The state of the main battery pack is monitored by the battery control system, which controls the DC transformer to convert high-voltage power into a voltage suitable for the battery system for charging according to the state of the main battery pack.

9. The method of claim 1, wherein the power monitoring and automatic charging management system further comprises: The vehicle controller can adjust the operation instruction sent to the automatic voltage detection system in real time, and the operation instruction includes at least one of a voltage detection frequency, a default voltage threshold parameter adjustment, or a detection accuracy.

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