28V low-voltage power distribution control method and system

Abstract

The invention discloses a 28V low-voltage power distribution control method, which comprises the following steps that: a control module receives an instruction of a vehicle electronic system, analyzes the instruction, generates a power supply control signal and sends the power supply control signal to a driving module through a switching module; receiving a first execution result sent by the driving module; receiving monitoring data sent by the driving module; the monitoring module is used for processing and analyzing the monitoring data, triggering a corresponding protection mechanism when abnormal data is detected, and sending a corresponding control instruction to the driving module; and receiving a second execution result sent by the driving module. Accurate power control can be realized for different types of loads. The control module dynamically adjusts a power distribution strategy through real-time monitoring data fed back by the driving module, timely deals with load changes or abnormal conditions, and performs accurate protection when the load fails, so that efficient operation of the load is guaranteed, accidents caused by the load failure are avoided, and the reliability of a vehicle system is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle power management technology, specifically to a 28V low-voltage power distribution control method and system. Background Technology

[0002] Currently, vehicle electrical equipment has low integration and power management components are scattered, resulting in complex internal connections and a large amount of wiring harnesses. This not only increases the overall weight of the system and the difficulty of installation and layout, but also potentially increases the failure rate due to the numerous connection points, making system maintenance and fault diagnosis more difficult.

[0003] Vehicles, especially those operating under harsh conditions, may face severe environments such as extreme temperature fluctuations, high humidity, strong vibrations, and complex electromagnetic interference. Some existing power distribution components may struggle to maintain long-term stable operation under all conditions, and the response speed and accuracy of their protection mechanisms need improvement to ensure continuous and safe power supply to critical vehicle loads.

[0004] Faced with diverse vehicle loads, traditional power distribution modules often lack the ability to monitor each load's status in real time and accurately, as well as the capability for data-driven intelligent management. When loads experience faults such as short circuits, overloads, or overheating, it is necessary to quickly and accurately identify and implement isolation protection to prevent the fault from spreading, while simultaneously ensuring the normal operation of non-faulty loads. Existing systems have limitations in achieving this refined and intelligent power distribution and fault protection. Summary of the Invention

[0005] The purpose of this invention is to provide a 28V low-voltage power distribution control method and system, which can accurately control the output power of the drive module and provide precise protection through multiple protection mechanisms when abnormal data occurs, so as to ensure stable operation of the system.

[0006] This invention is achieved through the following technical solution: In a first aspect, the first embodiment of the present invention provides a 28V low-voltage power distribution control method, comprising: The control module receives instructions from the vehicle's electronic system, parses the instructions and generates a power control signal, which is then sent to the drive module via a converter module. Receive the first execution result sent by the driver module; Receive monitoring data sent by the driver module; The monitoring data is processed and analyzed. When abnormal data is detected, the corresponding protection mechanism is triggered, and the corresponding control command is sent to the drive module. Receive the second execution result sent by the driver module; The first and second execution results are sent to the vehicle's electronic system.

[0007] Furthermore, the specific method for triggering the corresponding protection mechanism and sending corresponding control commands to the driver module when abnormal data is detected includes: The data anomalies include minor anomalies and severe anomalies; If it is a minor anomaly, a power reduction command is sent to the driver module and logged. If a serious abnormality occurs, a hardware interrupt is triggered, sending a forced cut-off signal to the driver module to stop the driver module from outputting.

[0008] Furthermore, after the step of receiving the second execution result sent by the driver module, the method further includes: Continuously monitor whether the anomaly has been resolved; If the issue has been resolved, the output will resume using the self-recovery method after the set time. If not released, the disconnected state will remain in effect.

[0009] Furthermore, the monitoring data includes temperature data, the status of the high-side switch, and the output voltage and current values ​​of each channel.

[0010] Furthermore, the specific method for parsing the instructions and generating the power control signal includes: Parse the instructions according to the CAN protocol and extract the power control requirements from the instructions. The power control requirements include: the output channel number of the driver module and the parameter for adjusting the output power value. Verify that the command is valid; If valid, then generate power control signals according to the logical mapping; If illegal, the instruction is discarded and an error code is sent to the vehicle's electronic system.

[0011] Secondly, another embodiment of the present invention provides a 28V low-voltage power distribution control system, comprising: a control module, a converter module, and a drive module. The control module is used to receive instructions from the vehicle electronic system, parse the instructions and generate power control signals, and send the power control signals to the drive module through the adapter module. The switching module is used to isolate and switch the power control signals sent by the control module, and send the isolated power control signals to the drive module through the output port; The drive module is used to receive the power control signal sent by the adapter module, and control the high-side switch to be turned on or off according to the power control signal, and send the first execution result to the control module. The drive module also sends the monitoring data to the control module. The control module is also used to process and analyze the monitoring data, trigger the corresponding protection mechanism when abnormal data is detected, and send the corresponding control command to the drive module. The drive module executes the control command and sends the second execution result to the control module; The control module sends the first and second execution results to the vehicle's electronic system.

[0012] Furthermore, the control module includes an exception handling unit, which is used to process data exceptions, including minor exceptions and serious exceptions. If it is a minor exception, a power reduction command is sent to the drive module and a log is recorded. If it is a serious exception, a hardware interrupt is triggered, a forced cut-off signal is sent to the drive module, and the drive module is controlled to stop output.

[0013] Furthermore, the system also includes a continuous monitoring unit, which is used to continuously monitor whether the anomaly has been resolved. If it has been resolved, the output is restored after a set time using a self-recovery method. If it has not been resolved, the system remains in a disconnected state.

[0014] Furthermore, the monitoring data includes temperature data, the status of the high-side switch, and the output voltage and current values ​​of each channel.

[0015] Furthermore, the control module includes a parsing unit, which is used to parse instructions according to the CAN protocol, extract power control requirements from the instructions, and verify whether the instructions are valid. If valid, a power control signal is generated according to the logical mapping; if invalid, the instructions are discarded and an error code is fed back to the vehicle electronic system.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: This invention provides a 28V low-voltage power distribution control method. The control module generates a power control signal based on external instructions and sends it to the drive module via a converter module. The drive module executes corresponding operations based on the power control signal, achieving precise power control for different types of loads. The drive module feeds back collected monitoring data to the control module. The control module analyzes the monitoring data and triggers corresponding protection mechanisms when abnormal data is detected. The control module dynamically adjusts the power distribution strategy based on real-time monitoring data from the drive module, responding promptly to load changes or abnormal situations. It provides precise protection in case of load failure, ensuring efficient load operation while preventing accidents caused by load failures, significantly improving the reliability of the vehicle system. This method is particularly suitable for military vehicles, enabling stable and safe power supply to the electronic systems of military vehicles, meeting the stringent requirements for high-reliability power management in complex environments.

[0017] This invention provides a 28V low-voltage power distribution control system. The control module, adapter module, and drive module work collaboratively via a CAN bus and internal data bus to form a highly efficient closed-loop control system. The control module generates power control signals based on external commands and sends them to the drive module through the adapter module. The drive module executes corresponding operations based on the power control signals, achieving precise power control for different types of loads. The drive module feeds back collected monitoring data to the control module. The control module analyzes the monitoring data and triggers corresponding protection mechanisms when abnormal data is detected. The control module dynamically adjusts the power distribution strategy based on real-time monitoring data from the drive module, responding promptly to load changes or abnormal situations. It provides precise protection in case of load failure, ensuring efficient load operation while preventing accidents due to load failure, significantly improving the reliability of the vehicle system. This method is particularly suitable for military vehicles, enabling stable and safe power supply to the electronic systems of military vehicles, meeting the stringent requirements for high-reliability power management in complex environments. Through a highly integrated architecture design, this system optimizes and integrates previously dispersed power management components, significantly reducing the complexity and failure rate of the vehicle's electrical system, and reducing vehicle wiring and weight. The system employs multiple redundancy protection mechanisms and anti-interference design, enabling stable operation in extreme temperature environments ranging from -43℃ to 70℃, as well as complex conditions such as high humidity. All modules utilize domestically produced components, resulting in low cost. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 A flowchart of a 28V low-voltage power distribution control method provided in the first embodiment of the present invention; Figure 2 The present invention provides a structural block diagram of a 28V low-voltage power distribution control system according to another embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0020] like Figure 1 As shown, the first embodiment of the present invention provides a 28V low-voltage power distribution control method, comprising: The control module receives instructions from the vehicle's electronic system, parses the instructions and generates a power control signal, which is then sent to the drive module via a converter module. Receive the first execution result sent by the driver module; Receive monitoring data sent by the driver module; The monitoring data is processed and analyzed. When abnormal data is detected, the corresponding protection mechanism is triggered, and the corresponding control command is sent to the drive module. Receive the second execution result sent by the driver module; The first and second execution results are sent to the vehicle's electronic system.

[0021] The control module, acting as the central control unit, bears the critical responsibilities of command reception, data processing, and task scheduling. It utilizes a domestically produced high-performance MCU processor, the AC78013. The control module receives commands from the vehicle's electronic system via the CAN bus, parses the power output control requirements within the commands, such as the output channel number of the drive module and parameters for adjusting output power values, and verifies the validity of the commands. If valid, it generates power control signals, such as PWM waves or level signals, based on logical mapping; if invalid, it discards the command and sends an error code back to the vehicle's electronic system. The control module then sends the power control signals to the drive module via a converter module. The drive module executes corresponding operations based on the power control signals, such as switching or adjusting power, and feeds back the initial execution result to the control module. The drive module, as the execution unit for power supply and output, relies on multiple high-side switches and temperature sensors to precisely distribute the 28V low-voltage power to various loads, including: headlight drivers, seat adjustments, wiper controls, as well as headlights, valves, pumps, and motors. The multi-channel high-side switch is the core execution component of the drive module. Each high-side switch corresponds to an independent power output channel. By controlling the conduction and cutoff of the high-side switches, precise control of the power supply to each load circuit is achieved. When the adapter module transmits a power control signal, the drive module sends a drive signal to the designated high-side switch according to the power control signal, causing the high-side switch to conduct and supply 28V power to the corresponding load circuit. When a command to shut down the output is received, the drive signal is withdrawn, the high-side switch is turned off, and the power output is cut off. The high-side switch has low on-resistance characteristics, which can effectively reduce power loss during power transmission. It also has a built-in overcurrent protection function. When the current flowing through the switch exceeds the set threshold, it can quickly and automatically cut off the circuit to prevent serious accidents such as device damage and fire caused by overload.

[0022] During operation, the drive module also monitors data such as the high-side switch status, output voltage and current values, and temperature, sending the monitored data to the control module. The control module processes and analyzes the monitoring data, enabling it to monitor system operation and make corresponding decisions in real time. When abnormal data is detected, the corresponding protection mechanism is triggered, sending appropriate control commands to the drive module. The system continuously monitors whether the abnormality has been resolved. If resolved, the output is restored using a self-recovery method after a set time; if not resolved, the output remains disconnected. The control module reports the execution status to the vehicle's electronic system via the CAN bus.

[0023] Specifically, the control module receives voltage, current, and temperature data sent by the drive module according to the sampling period, processes the raw data through a filtering algorithm, and compares the processed data with a preset threshold to determine whether the data is abnormal. If there is a slight abnormality, a power reduction command is sent to the drive module and the log is recorded. If there is a serious abnormality, a hardware interrupt is triggered, a forced cut-off signal is sent to the drive module, and the drive module is controlled to stop output.

[0024] For example, temperature sensors are placed in areas where the drive module generates concentrated heat and near the high-side switch to monitor the drive module's operating temperature in real time. When the temperature sensor detects that the temperature has reached a preset over-temperature threshold, it immediately converts the temperature signal into an electrical signal and transmits it to the control module. Upon receiving the over-temperature signal, the control module automatically reduces the output power or cuts off the power supply according to a preset protection strategy to prevent component performance degradation or even damage due to excessive temperature. After the temperature returns to normal, the control module resends the power control signal to the drive module to ensure that the drive module always operates stably within a safe temperature range.

[0025] This invention provides a 28V low-voltage power distribution control method. The control module generates a power control signal based on external instructions and sends it to the drive module via a converter module. The drive module executes corresponding operations based on the power control signal, achieving precise power control for different types of loads. The drive module feeds back collected monitoring data to the control module. The control module analyzes the monitoring data and triggers corresponding protection mechanisms when abnormal data is detected. The control module dynamically adjusts the power distribution strategy based on real-time monitoring data from the drive module, responding promptly to load changes or abnormal situations. It provides precise protection in case of load failure, ensuring efficient load operation while preventing accidents caused by load failures, significantly improving the reliability of the vehicle system. This method is particularly suitable for military vehicles, enabling stable and safe power supply to the electronic systems of military vehicles, meeting the stringent requirements for high-reliability power management in complex environments.

[0026] Another embodiment of the present invention provides a 28V low-voltage power distribution control system, comprising: a control module, a switching module, and a drive module. The control module is used to receive instructions from the vehicle electronic system, parse the instructions and generate a power control signal, and send the power control signal to the drive module through the switching module. The switching module is used to isolate and switch the power control signal sent by the control module, and send the isolated power control signal to the drive module through an output port. The drive module is used to receive the power control signal sent by the switching module, control the high-side switch to turn on or off according to the power control signal, and send a first execution result to the control module. The drive module is also used to collect monitoring data from the vehicle electronic system and send the monitoring data to the control module. The control module is also used to process and analyze the monitoring data, trigger a corresponding protection mechanism when abnormal data is detected, and send a corresponding control instruction to the drive module. The drive module executes the control instruction and sends a second execution result to the control module. The control module sends the first execution result and the second execution result to the vehicle electronic system.

[0027] The control module includes an exception handling unit, which is used to handle data exceptions, including minor exceptions and serious exceptions. If it is a minor exception, a power reduction command is sent to the driver module and a log is recorded. If it is a serious exception, a hardware interrupt is triggered, a forced cut-off signal is sent to the driver module, and the driver module is controlled to stop output.

[0028] The system also includes a continuous monitoring unit, which is used to continuously monitor whether the anomaly has been resolved. If it has been resolved, the output will be restored after a set time using a self-recovery method. If it has not been resolved, the system will remain in a disconnected state.

[0029] The monitoring data includes temperature data, the status of the high-side switch, and the output voltage and current values ​​of each channel.

[0030] The control module includes a parsing unit, which is used to parse instructions according to the CAN protocol, extract power control requirements from the instructions, and verify whether the instructions are valid. If valid, the power control signal is generated according to the logic mapping; if invalid, the instructions are discarded and an error code is fed back to the vehicle electronic system.

[0031] The present invention provides a 28V low-voltage power distribution control system, which consists of three core components: a control module, an adapter module, and a drive module. The three components have clear division of labor and work together. The system achieves precise control of the output power of the drive module through CAN commands and ensures stable operation of the system through multiple protection mechanisms.

[0032] As the control center, the control module undertakes the key responsibilities of command reception, data processing and task scheduling, and adopts the domestic high-performance MCU processor AC78013.

[0033] The adapter module acts as a bridge between the control module and the drive module in the system. Its core function is to isolate and transfer the signals output by the control module. The adapter module uses optocouplers for signal isolation. An optocoupler is a device that transmits electrical signals through light, completely severing the electrical connection between input and output. This prevents strong electrical interference from the drive module from affecting the control module, effectively improving the system's anti-interference capability and safety. When the control module outputs a power control signal, the signal is input to the optocoupler input terminal of the adapter module as an electrical signal. The LED inside the optocoupler converts the electrical signal into an optical signal. The optical signal passes through the isolation medium of the optocoupler, is received by the optical receiver, and is converted back into an electrical signal for output. The signal, after optocoupler isolation, is then transmitted to the drive module through the output port of the adapter module, ensuring reliable electrical isolation between the control module and the drive module, while accurately transmitting control commands. Furthermore, the adapter module also has signal shaping and amplification functions to ensure stable signal quality transmitted to the drive module, preventing signal attenuation or distortion from affecting the normal operation of the drive board.

[0034] As the execution unit for power distribution and output, the drive module, under the control of the control module transmitted by the adapter module, accurately distributes the 28V low-voltage power supply to each load by relying on multiple high-side switches and temperature sensors.

[0035] The execution process of each module can be carried out according to the steps of the 28V low-voltage power distribution control method in Embodiment 1, and will not be described in detail in this embodiment.

[0036] This invention provides a 28V low-voltage power distribution control system. The control module, adapter module, and drive module work collaboratively via a CAN bus and internal data bus to form a highly efficient closed-loop control system. The control module generates power control signals based on external commands and sends them to the drive module through the adapter module. The drive module executes corresponding operations based on the power control signals, achieving precise power control for different types of loads. The drive module feeds back collected monitoring data to the control module. The control module analyzes the monitoring data and triggers corresponding protection mechanisms when abnormal data is detected. The control module dynamically adjusts the power distribution strategy based on real-time monitoring data from the drive module, responding promptly to load changes or abnormal situations. It provides precise protection in case of load failure, ensuring efficient load operation while preventing accidents due to load failure, significantly improving the reliability of the vehicle system. This method is particularly suitable for military vehicles, enabling stable and safe power supply to the electronic systems of military vehicles, meeting the stringent requirements for high-reliability power management in complex environments. Through a highly integrated architecture design, this system optimizes and integrates previously dispersed power management components, significantly reducing the complexity and failure rate of the vehicle's electrical system, and reducing vehicle wiring and weight. The system employs multiple redundancy protection mechanisms and anti-interference design, enabling stable operation in extreme temperature environments ranging from -43℃ to 70℃, as well as complex conditions such as high humidity. All modules utilize domestically produced components, resulting in low cost.

[0037] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A 28V low-voltage power distribution control method, characterized in that, include: The control module receives instructions from the vehicle's electronic system, parses the instructions and generates a power control signal, which is then sent to the drive module via a converter module. Receive the first execution result sent by the driver module; Receive monitoring data sent by the driver module; The monitoring data is processed and analyzed. When an anomaly is detected, the corresponding protection mechanism is triggered, and the corresponding control command is sent to the drive module. Receive the second execution result sent by the driver module; The first and second execution results are sent to the vehicle's electronic system.

2. The 28V low-voltage power distribution control method as described in claim 1, characterized in that, The specific method for triggering the corresponding protection mechanism and sending corresponding control commands to the driver module when abnormal data is detected includes: The data anomalies include minor anomalies and severe anomalies; If it is a minor anomaly, a power reduction command is sent to the driver module and logged. If a serious abnormality occurs, a hardware interrupt is triggered, sending a forced cut-off signal to the driver module to stop the driver module from outputting.

3. The 28V low-voltage power distribution control method as described in claim 2, characterized in that, The step of receiving the second execution result sent by the driver module further includes: Continuously monitor whether the anomaly has been resolved; If the issue has been resolved, the output will resume using the self-recovery method after the set time. If not released, the disconnected state will remain in effect.

4. The 28V low-voltage power distribution control method as described in claim 3, characterized in that, The monitoring data includes temperature data, the status of the high-side switch, and the output voltage and current values ​​of each channel.

5. The 28V low-voltage power distribution control method as described in claim 1, characterized in that, The specific method for parsing instructions and generating power control signals includes: Parse the instructions according to the CAN protocol and extract the power control requirements from the instructions. The power control requirements include: the output channel number of the driver module and the parameter for adjusting the output power value. Verify that the command is valid; If valid, then generate power control signals according to the logical mapping; If illegal, the instruction is discarded and an error code is sent to the vehicle's electronic system.

6. A 28V low-voltage power distribution control system, characterized in that, include: Control module, adapter module, and driver module, The control module is used to receive instructions from the vehicle electronic system, parse the instructions and generate power control signals, and send the power control signals to the drive module through the adapter module. The switching module is used to isolate and switch the power control signals sent by the control module, and send the isolated power control signals to the drive module through the output port; The drive module is used to receive the power control signal sent by the adapter module, and control the high-side switch to be turned on or off according to the power control signal, and send the first execution result to the control module. The drive module also sends the monitoring data to the control module. The control module is also used to process and analyze the monitoring data, trigger the corresponding protection mechanism when abnormal data is detected, and send the corresponding control command to the drive module. The drive module executes the control command and sends the second execution result to the control module; The control module sends the first and second execution results to the vehicle's electronic system.

7. The 28V low-voltage power distribution control system as described in claim 6, characterized in that, The control module includes an exception handling unit, which is used to handle data exceptions, including minor exceptions and serious exceptions. If it is a minor exception, a power reduction command is sent to the driver module and a log is recorded. If it is a serious exception, a hardware interrupt is triggered, a forced cut-off signal is sent to the driver module, and the driver module is controlled to stop output.

8. The 28V low-voltage power distribution control system as described in claim 7, characterized in that, The system also includes a continuous monitoring unit, which is used to continuously monitor whether the anomaly has been resolved. If it has been resolved, the output will be restored after a set time using a self-recovery method. If it has not been resolved, the system will remain in a disconnected state.

9. The 28V low-voltage power distribution control system as described in claim 8, characterized in that, The monitoring data includes temperature data, the status of the high-side switch, and the output voltage and current values ​​of each channel.

10. The 28V low-voltage power distribution control system as described in claim 6, characterized in that, The control module includes a parsing unit, which is used to parse instructions according to the CAN protocol, extract power control requirements from the instructions, and verify whether the instructions are valid. If valid, the power control signal is generated according to the logic mapping; if invalid, the instructions are discarded and an error code is fed back to the vehicle electronic system.

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