Power supply system and electronic device

Abstract

The invention relates to a power supply system and electronic equipment. The power supply system comprises a power distribution unit and a main control unit, the input end of the power distribution unit is connected with the output end of an external power supply unit, the output end of the power distribution unit is connected with the main control unit and a load, the power distribution unit is configured to convert a first voltage provided by the power supply unit into target voltages corresponding to the main control unit and the load respectively, and the target voltages correspond to the main control unit and the load respectively. And the power supply unit supplies power to the main control unit and the load. According to the power supply system, in some application scenes, especially when the main control unit is in the low-power-consumption mode, the power distribution unit can also provide the required target voltage for each load, the main control unit does not need to be awakened for control, and high power consumption of the power supply system is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, and in particular to a power supply system and electronic equipment. Background Art

[0002] With the further improvement of passenger car body size and intelligent configuration, the increase of power supply voltage has become the evolution trend of the next generation of electronic and electrical architecture, such as 12V to 48V. In the new generation of electronic and electrical architecture, the power supply module that can provide higher power supply voltage has become a key component for the evolution of the vehicle architecture to higher power supply voltage.

[0003] In the related art, the output of the power supply module is generally connected to the host of the application device, and the host is connected to the load. In the process of supplying power to the load through the power supply module, the host dynamically controls the output of the power supply module. In some scenarios, there is a problem of high power consumption. Summary of the invention

[0004] One of the purposes of the present invention is to provide a power supply system to solve the problem of high power consumption in some scenarios of the power supply system in the prior art; the second purpose is to provide an electronic device.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A power supply system, comprising: a power distribution unit and a main control unit; the input end of the power distribution unit is connected to the output end of an external power supply unit, and the output end of the power distribution unit is connected to the main control unit and a load, wherein:

[0007] The power distribution unit is configured to convert the first voltage provided by the power supply unit into target voltages corresponding to the main control unit and the load respectively, so as to supply power to the main control unit and the load.

[0008] According to the above-mentioned technical means, since the power supply system includes a distribution unit, and the distribution unit can convert the first voltage provided by the power supply unit into the required target voltages corresponding to the main control unit and each load respectively, in this way, the main control unit and each load can be powered directly through the distribution unit, and each load does not need to be powered by the main control unit. In some scenarios, especially when the main control unit is in low power consumption mode, the distribution unit can also provide the required target voltage for each load without waking up the main control unit for control, thereby avoiding high power consumption of the power supply system.

[0009] Further, the power distribution unit includes a first DC-DC DCDC and a power supply control module, the input end of the first DCDC is the input end of the power distribution unit, the first DCDC is connected to the power supply control module, and the power supply control module is connected to the load; wherein:

[0010] The first DCDC is configured to provide a second voltage to the power supply control module, wherein the second voltage is lower than the first voltage;

[0011] The power supply control module is configured to provide a corresponding target voltage to the load.

[0012] According to the above-mentioned technical means, since the power distribution unit includes a first DC-DC DCDC and a power supply control module, the first DCDC converts the first voltage into the voltage required by the power supply main control unit or some loads, thereby providing different voltages for different loads, while the power supply control module can control the second voltage and then convert it into more voltages to supply power to more different loads, thereby realizing power supply distribution for different loads.

[0013] Furthermore, the power supply control module is also configured to receive the recovery information of the load, and adjust the output parameters of the first DCDC and / or the power supply control module according to the recovery information, and the output parameters include at least one of voltage, current and power.

[0014] According to the above technical means, the output parameters of the first DCDC and / or the power supply control module are dynamically adjusted according to the load through the power supply control module, and the output parameters are dynamically adjusted without the need for adjustment through the main control unit.

[0015] Further, the power supply control module includes a power management chip PMIC and a power controller DPC, the output end of the first DCDC is connected to the PMIC, the PMIC is connected to the DPC, the main control unit and the load, and the DPC is also connected to the load and the first DCDC; wherein,

[0016] The PMIC is configured to provide corresponding required target voltages to the DPC, the main control unit and the load;

[0017] The DPC is configured to receive the recycling information of the load and adjust the output parameters of the first DCDC and / or the PMIC according to the recycling information.

[0018] According to the above technical means, since the DPC has a logic control function, it can analyze the collected information based on the received load collected information to determine whether the voltage, current or power of the load is in a stable state, and then dynamically adjust the output parameters of the first DCDC and / or PMIC to keep the voltage, current or power of the input load stable without the need for control by the main control unit.

[0019] Further, the PMIC is also used to continue to supply power to the DPC and the connected load when power supply to the main control unit is stopped or when the main control unit is switched to a low power consumption mode;

[0020] The DPC supplies power to the load, receives recycling information of the load, and adjusts output parameters of the first DCDC and / or the PMIC according to the recycling information.

[0021] According to the above technical means, when the main control unit enters the low power consumption mode or is powered off, since the PMIC continues to supply power to the DPC, the DPC maintains normal operation and power supply, and the output parameters of the first DCDC and / or the PMIC can be dynamically adjusted by the load, so that the main control unit can ensure the power supply of the load and dynamically adjust the output parameters of the first DCDC and / or the output parameters of the PMIC according to the requirements of the load in the low power consumption mode.

[0022] Further, the DPC includes a data collection module and a data analysis module, the data collection module is connected to the load and the data analysis module respectively, and the data analysis module is connected to the first DCDC and / or the PMIC;

[0023] The data analysis module is configured to control the first DCDC and / or the PMIC according to the collected information of the data collection module.

[0024] According to the above technical means, the output parameters of the first DCDC and the PMIC are controlled.

[0025] Further, the first DCDC includes a first conversion module and a first output parameter adjustment module, the input end of the first conversion module is the input end of the power distribution unit, the output end of the first conversion module is connected to the PMIC, and the first output parameter adjustment module is respectively connected to the first conversion module and the DPC;

[0026] The first conversion module is configured to convert the first voltage into a second voltage and supply power to the PMIC;

[0027] The first output parameter adjustment module is configured to receive an adjustment instruction sent by the DPC, and adjust the output parameter of the first conversion module according to the adjustment instruction.

[0028] According to the above technical means, voltage conversion and dynamic adjustment of output parameters are achieved.

[0029] Further, the PMIC includes a second conversion module and a second output parameter adjustment module, the input end of the second conversion module is connected to the output end of the first DCDC, the second conversion module is respectively connected to the DPC, the main control unit and the load, and the second output parameter adjustment module is respectively connected to the DPC and the second conversion module;

[0030] The second conversion module is configured to provide a third voltage to the load;

[0031] The second output parameter adjustment module is configured to receive an adjustment instruction sent by the DPC, and adjust the output parameter of the second conversion module according to the adjustment instruction.

[0032] According to the above technical means, voltage conversion and dynamic adjustment of output parameters are achieved.

[0033] Furthermore, the output terminal of the first DCDC is also connected to the load and is configured to provide a second voltage to the load.

[0034] According to the above technical means, it is possible to directly provide the second voltage to the load.

[0035] Furthermore, the power supply system further comprises an intelligent power module, the input end of the intelligent power module is connected to the main control unit, the output end of the intelligent power module is connected to the first load, and the load comprises a first load and a second load; wherein:

[0036] The DPC is also connected to the main control unit, the first load is connected via the main control unit, and the second load is connected to the DPC;

[0037] The DPC is configured to adjust the output parameters of the first DCDC and / or the PMIC to the first load according to the configuration information of the main control unit on the intelligent power module; and is also configured to adjust the output parameters of the first DCDC and / or the PMIC to the second load according to the recycling information of the second load.

[0038] According to the above technical means, abnormal power-off protection of the load power supply circuit is achieved.

[0039] Furthermore, the power supply system also includes a driving module, and the driving module is connected between the DPC and the second load.

[0040] According to the above technical means, abnormal power-off protection of the load power supply circuit is achieved with low cost.

[0041] An electronic device comprises: a power supply unit, a load and the power supply system as described above; the output end of the power supply unit is connected to the input end of the power supply system and provides a first voltage to the power supply system, and the power supply system is connected to the load and supplies power to the load.

[0042] Furthermore, the first output end of the power supply unit is connected to the power distribution unit, and the output end of the power supply unit is also connected to the load to provide a first voltage to the load.

[0043] According to the above technical means, the first voltage is provided to the load.

[0044] Furthermore, the power supply unit includes a battery and a second DC-DC DCDC, the input end of the second DC-DC DCDC is connected to an external power battery, the output end of the second DC-DC DCDC is connected to the battery, and is configured to convert the high voltage of the power battery into the first voltage and then charge the battery; the output end of the battery is connected to the input end of the distribution unit.

[0045] Furthermore, the electronic equipment includes a plurality of zone controllers, and each of the zone controllers is provided with the power supply system.

[0046] According to the above technical means, the power supply system is integrated into the regional controller, which can distribute power and control the loads connected to each regional controller, and has universality.

[0047] Beneficial effects of the present invention:

[0048] (1) In the embodiment of the present application, the power supply system can provide 48V high power in the regional controller to meet the power supply requirements of the 48V load, while also meeting other voltage requirements of the load, and realize the allocation of corresponding target voltages for different loads;

[0049] (2) In the embodiment of the present application, the power supply system distributes power through the power distribution unit, and the power distribution unit monitors the recovery information returned by the load, and dynamically adjusts the output parameters of the first DCDC and PIMC in the power distribution unit according to the recovery information, without the need for control by the main control unit. In this way, when the main control unit is in low power consumption mode and the connected load needs to work normally, there is no need to wake up the main control unit, and the power distribution unit can provide normal and stable voltage or current to the load, thereby achieving energy saving effect.

[0050] (3) In the embodiment of the present application, the power supply system has an intelligent insurance function, which realizes abnormal on-off control of the power supply circuit through the combined control of the intelligent power module or the drive module and the DPC, and intelligently protects the power supply circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic diagram of the structure of the power supply system provided by the present invention;

[0052] Figure 2 A schematic diagram of power distribution of the power supply system provided by the present invention;

[0053] Figure 3 A schematic diagram of the intelligent insurance of the power supply system provided by the present invention;

[0054] Figure 4 A schematic diagram of the structure of an electronic device provided by the present invention;

[0055] Figure 5 A schematic diagram of a power supply process of a power supply system when a regional controller of an electronic device provided by the present invention is in a low power consumption mode.

[0056] Among them, 10-power supply unit; 11-battery, 12-second DC-DC DCDC; 20-power supply system; 21-distribution unit; 22-main control unit; 23-first DC-DC DCDC; 231-first conversion module; 232-first output parameter adjustment module; 233-backup power supply module; 24-power supply control module; 25-power management chip PMIC; 251-second conversion module; 252-second output parameter adjustment module; 26-power controller DPC; 261-data collection module; 262-data analysis module; 27-intelligent power module; 28-drive module; 30-load. DETAILED DESCRIPTION

[0057] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0058] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0059] With the further improvement of passenger car body size and intelligent configuration, the increase of power supply voltage has become the evolution trend of the next generation of electronic and electrical architecture, such as 12V to 48V. In the new generation of electronic and electrical architecture, the power supply module that can provide higher power supply voltage has become a key component for the evolution of the vehicle architecture to higher power supply voltage.

[0060] In the related art, the output of the power supply module is generally connected to the host of the application device, and the host is connected to the load. In the process of supplying power to the load through the power supply module, the host controls the output of the power supply module and distributes power to different loads. In some scenarios, there is a problem of high power consumption.

[0061] Based on the above-mentioned problems, an embodiment of the present application proposes a power supply system, which supplies power to the load through an independent distribution unit, and through the distribution unit, dynamically adjusts the output parameters to the load according to the load demand to adapt to the load demand or changes without going through the host, so as to solve the problem of high power consumption of the host power distribution in some scenarios.

[0062] like Figure 1 As shown, an embodiment of the present application provides a power supply system 20, which includes: a power distribution unit 21 and a main control unit 22, the input end of the power distribution unit 21 is connected to the output end of the external power supply unit 10, and the output end of the power distribution unit 21 is connected to the main control unit 22 and the load 30, wherein:

[0063] The power supply unit 10 may provide a first voltage to the power distribution unit 21. The first voltage may be 48V or other voltages.

[0064] The power distribution unit 21 is configured to convert the first voltage into target voltages corresponding to the main control unit 22 and the load 30 respectively, so as to supply power to the main control unit 22 and the load 30 .

[0065] Specifically, the power supply unit 10 provides a first voltage to the distribution unit 21, and the distribution unit 21 converts the first voltage into target voltages required by the main control unit 22 and the load 30 respectively, and then supplies power to the main control unit 22 and the load 30 to complete power distribution.

[0066] For example, the rated voltage of some loads 30 is 48V, the rated voltage of some loads 30 is 12V, and the rated voltage of some loads 30 is 5V, etc. In this embodiment, the output end of the power supply unit 10 is connected to the load 30, and a first voltage (48V) can be provided to the load 30. The power distribution unit 21 can convert the first voltage into a second voltage (12V), or convert the first voltage into a third voltage (5V), or convert the first voltage into a second voltage, and then convert the second voltage into a third voltage. The embodiment of the present application uses the power distribution unit 21 to convert the first voltage into other voltages, thereby supplying power to loads 30 with different rated voltages.

[0067] As an example, the power supply system 20 is applied in the regional controller of the vehicle, and the regional controller is used to supply power to the secondary load 30 of the vehicle (the secondary load 30 includes the load 30 that interacts with the main control unit 22). The power supply system 20 is integrated into the regional controller, and the regional controller supplies power to different secondary loads 30 through the power supply system 20. Different secondary loads 30 have different target voltages corresponding to their requirements. The power supply system 20 provides the corresponding target voltage according to the requirements of the secondary load 30 through the power distribution unit 21. The secondary load 30 is such as a lamp, a motor, a sensor, or some other ECUs.

[0068] In some technologies, the power supply system 20 is outside the regional controller, and the power supply system 20 provides a voltage to the regional controller. The computing power of the main control unit 22 in the regional controller distributes and controls the secondary load 30, which makes it difficult for the regional controller to supply power to different secondary loads 30 and occupies additional computing power of the main control unit. In addition, in some scenarios, the regional controller on the vehicle does not need to work, that is, the regional controller enters a dormant state. At this time, the main control unit 22 can switch to a low power mode to reduce power consumption. However, when the load 30 connected to the main control unit 22 needs to work, the main control unit 22 switches to a low power mode, and it is unable to provide a stable output to the load. Therefore, when the regional controller is in a dormant state, the load 30 is undervoltage and it is difficult to maintain normal operation. In this case, the main control unit 22 is awakened and has been in a working state. The main control unit 22 executes the power distribution logic and control logic to supply power to the load 30. The purpose of the main control unit 22 entering a low power state is to save energy. Based on the power supply requirements of the load 30, the main control unit 22 is required to be in a working state all the time, resulting in high power consumption of the regional controller. Even if it reaches a dormant state, it needs to maintain normal operation, which wastes resources. In this embodiment, the power supply system 20 is integrated into the regional controller. The power supply system 20 distributes power to different loads 30 through the distribution unit 21, and there is no need for the main control unit 22 to distribute power. When the regional controller is dormant, the distribution unit 21 supplies power to the secondary load and maintains stable output, which does not affect the normal power supply of the secondary load 30. The main control unit 22 can enter a low power consumption state, which can save energy. For example, in a vehicle control system, when the secondary load needs power supply, the power consumption of a ZCU system plus the secondary load of each ZCU is 300W in total, and the full power of a main control unit 22 is 50W. In this embodiment, the distribution unit 21 is used to power the load, so that the main control unit 22 is in a low power consumption mode, which can save 50W, and the overall power consumption is 250W.

[0069] In this embodiment, the power supply line system includes a distribution unit 21, and the distribution unit 21 can convert the first voltage provided by the power supply unit 10 into the required target voltages corresponding to the main control unit 22 and each load 30 respectively. In this way, the main control unit 22 and each load 30 can be powered directly through the distribution unit 21, and each load 30 does not need to be powered by the main control unit 22. In some scenarios, especially when the main control unit 22 is in low power consumption mode, the distribution unit 21 can also provide the required target voltage for each load 30 without waking up the main control unit 22 for control, thereby avoiding high power consumption of the power supply system 20.

[0070] As an example, continue to refer to Figure 1The power distribution unit 21 includes a first DC-DC DCDC23 and a power supply control module 24. The input end of the first DCDC23 is the input end of the power distribution unit 21. The first DCDC23 is connected to the power supply control module 24, and the power supply control module 24 is connected to the load 30; wherein:

[0071] The first DCDC 23 is configured to provide a second voltage to the power supply control module 24 .

[0072] Optionally, the first DCDC 23 is a voltage conversion module, which is used to convert the first voltage provided by the power supply unit 10 into a second voltage, and then provide the second voltage to the power supply control module 24. Optionally, the second voltage is lower than the first voltage, and the first DCDC 23 reduces the first voltage to the second voltage to meet the power supply requirements of the low-voltage electronic components.

[0073] The power supply control module 24 is configured to provide corresponding target voltages to the main control unit 22 and the load 30 .

[0074] Optionally, the power supply control module 24 may directly provide the second voltage to the main control unit 22 or the load 30, or may convert the second voltage into a target voltage required by the main control unit 22 or the load 30, such as a third voltage, according to the requirements of the main control unit 22 or the load 30. Alternatively, the power supply control module 24 may convert the second voltage into a third voltage, and then provide the third voltage to the load 30, provide the second voltage to the main control unit 22, or exchange information with the main control unit 22.

[0075] As an example, the output end of the first DCDC 23 is also connected to the load 30 , and can directly provide the second voltage to the load 30 after converting the first voltage into the second voltage.

[0076] Taking the first voltage of 48V as an example, the power supply unit 10 provides 48V voltage to the distribution unit 21, and the first DCDC23 is 48V / 12V-first DCDC23, which converts 48V into 12V, provides 12V voltage to the power supply control module 24, and provides 12V voltage to the connected load 30.

[0077] In this example, the power distribution module converts the first voltage into the second voltage through the first DCDC23, and then provides the second voltage to the load 30, while supplying power to the power supply control module 24. The power supply control module 24 can control the second voltage and convert it into more voltages to supply power to more different loads 30, thereby realizing power supply distribution to different loads 30.

[0078] As an example, the power supply control module 24 is also configured to receive the recovery information of the load 30, and adjust the output parameters of the first DCDC23 and / or the power supply control module 24 according to the recovery information, and the output parameters include at least one of voltage, current and power.

[0079] In this example, the power supply control module 24 is connected to the load 30, and can receive the recovery information of the load 30, and then adjust the output parameters of the first DCDC23 and / or the power supply control module 24 based on the recovery information, so as to dynamically adjust the output parameters of the first DCDC23 and / or the power supply control module 24, so that the input of the load 30 remains stable, wherein the recovery information includes the current and / or voltage of the load 30. For example, when the current or voltage of the load 30 changes, the power supply control module 24 determines the adjustment value of the output parameter according to the change value of the current and / or voltage, generates an adjustment instruction, and sends it to the first DCDC23 and / or the power supply control module 24, so that the first DCDC23 and / or the power supply control module 24 adjusts the output parameters (such as output power, etc.) of the first DCDC23 and / or the power supply control module 24 according to the adjustment value corresponding to the adjustment instruction, so that the output parameters provided by the first DCDC23 and / or the power supply control module 24 to the load 30 are within the normal demand range of the load 30. In some scenarios, when the load 30 increases, the output parameter needs to be increased to ensure the power demand of the load 30. In some scenarios, when some loads 30 are disconnected, the output parameter needs to be reduced to avoid excessive input power to the loads 30 .

[0080] In some scenarios, for example, when the main control unit 22 is in a low power consumption mode due to the sleep state of the applied drive controller, the output parameters of the first DCDC23 and / or the power supply control module 24 are dynamically adjusted according to the load 30 based on the power supply control module 24 to maintain a stable input of the load 30 and ensure the normal operation of the load 30.

[0081] As an example, the power supply control module 24 adjusts the output parameters by adjusting the duty cycle of the first DCDC 23 and / or the power supply control module 24 , so as to stabilize the output current or voltage.

[0082] As an example, the power supply control module 24 includes a power management chip PMIC25 and a power controller DPC26, the output end of the first DCDC23 is connected to the PMIC25, the PMIC25 is connected to the DPC26, the main control unit 22 and the load 30, and the DPC26 is also connected to the load 30 and the first DCDC23; wherein:

[0083] PMIC25 is configured to provide the corresponding required target voltages to DPC26, main control unit 22 and load 30. As a power management chip, the input end of PMIC25 is connected to the first DCDC23, and the first DCDC23 inputs the second voltage to PMIC25. PMIC25 can directly provide the second voltage to DPC26, main control unit 22 or load 30, or convert the second voltage to a third voltage and then provide the third voltage to DPC26, main control unit 22 or load 30. PMIC25 specifically supplies power according to the target voltage required by DPC26, main control unit 22 or load 30.

[0084] The DPC 26 is configured to receive the recycling information of the load 30 and adjust the output parameters of the first DCDC 23 and / or the PMIC 25 according to the recycling information.

[0085] The collected information of the load 30 includes at least one of the voltage, current and power of the load 30. The DPC 26 receives the collected information of the load 30, and by analyzing the collected information, it can determine whether the voltage, current or power of the load 30 is in a stable state, and then dynamically adjusts the output parameters of the first DCDC 23 and / or the PMIC 25 to keep the voltage, current or power of the input load 30 stable.

[0086] As an example, Figure 2 As shown, the first DCDC23 includes a first conversion module 231 and a first output parameter adjustment module 232. The input end of the first conversion module 231 is the input end of the power distribution unit 21, the output end of the first conversion module 231 is connected to the PMIC25, and the first output parameter adjustment module 232 is connected to the first conversion module 231 and the DPC26 respectively. The first conversion module 231 is configured to convert the first voltage into the second voltage and supply power to the PMIC25 (provide the second voltage), and can also convert the first voltage into the second voltage and directly provide the second voltage to the load 30. The first output parameter adjustment module 232 is configured to receive the adjustment instruction sent by the DPC26, and adjust the output parameters of the first conversion module 231 according to the adjustment instruction.

[0087] In this example, the first output parameter adjustment module 232 is an execution module, which performs parameter adjustment through adjustment instructions, so that the output parameters of the first conversion module 231 are adjusted. It should be noted that the adjustment instruction is issued by the DPC26 module according to the recovery information of the load 30.

[0088] Based on the above structure, it can be known that the functions of the first DCDC23 include but are not limited to the following: 1. Based on the first conversion module 231, it can convert the first voltage into the second voltage; 2. Based on the first output parameter adjustment module 232, it can dynamically adjust the output parameters of the first conversion module 231; 3. It can provide the second voltage to the power supply control module 24.

[0089] In some embodiments, the first DCDC23 further includes a backup power module 233, which is used to redundantly back up the first voltage. In some embodiments, the backup power module 233 is connected to the first conversion module 231, and can supply power to the first conversion module 231 through the backup power module 233 when the power supply unit is disconnected. Alternatively, in some embodiments, the backup power module 233 can also be connected to the load 30, and the first voltage is provided to the load 30 through the backup power module 233, that is, the first DCDC23 can provide the first voltage to the load 30, and can also provide other voltages through the power supply control module 24.

[0090] As an example, Figure 2 As shown, the PMIC 25 includes a second conversion module 251 and a second output parameter adjustment module 252, the input end of the second conversion module 251 is connected to the output end of the first DCDC 23, the second conversion module 251 is respectively connected to the DPC 26, the main control unit 22 and the load 30, and the second output parameter adjustment module 252 is respectively connected to the DPC 26 and the second conversion module 251;

[0091] The second conversion module 251 is configured to provide a third voltage to the load 30;

[0092] The second output parameter adjustment module 252 is configured to receive an adjustment instruction sent by the DPC 26 and adjust the output parameter of the second conversion module 251 according to the adjustment instruction.

[0093] In this example, the second output parameter adjustment module 252 is an execution module, which performs parameter adjustment through adjustment instructions, so that the output parameters of the second conversion module 251 are adjusted. It should be noted that the adjustment instruction is issued by the DPC 26 module according to the recovery information of the load 30.

[0094] Based on the above structure, it can be known that the functions of PMIC25 include but are not limited to the following: 1. Based on the second conversion module 251, the second voltage can be converted into a third voltage; 2. Based on the second output parameter adjustment module 252, the output parameters of the second conversion module 251 can be dynamically adjusted; 3. It can provide a third voltage to DPC26, the main control unit 22 and the load 30, and manage the power supply of DPC26 and the main control unit 22.

[0095] As an example, Figure 2 As shown, the DPC 26 includes a data collection module 261 and a data analysis module 262. The data collection module 261 is connected to the load 30 and the data analysis module 262 respectively, and the data analysis module 262 is connected to the first DCDC 23 and / or the PMIC 25. The data analysis module 262 is configured to control the first DCDC 23 and / or the PMIC 25 according to the collection information of the data collection module.

[0096] That is, the data collection module 261 is connected between the load 30 and the data analysis module 262. The collection information of the load 30 is obtained through the data collection module 261, and the collection information is analyzed through the data analysis module 262 to determine the adjustment instruction, and then the adjustment instruction is sent to the first DCDC23 and / or PMIC25. The first DCDC23 and / or PMIC25 adjusts its output parameters according to the adjustment instruction.

[0097] It should be noted that the data collection module 261 is connected to multiple loads 30 and can obtain the collection information of multiple loads 30. The data analysis module 262 generates corresponding adjustment instructions according to the collection information of different loads 30, and sends the corresponding adjustment instructions to the corresponding first DCDC 23 or PMIC 25 to adjust the output parameters.

[0098] Take the 48V load 30, 12V load 30, and 5V load 30 as an example, wherein the first DCDC23 supplies power to the 12V load 30, the PMIC25 supplies power to the 5V load 30, the backup power module 233 of the first DCDC23 supplies power to the 48V load 30, or the power supply unit 10 supplies power to the 48V load 30. The 48V load 30, the 12V load 30, and the 5V load 30 are all connected to the data collection module 261. If the voltage, current, or power of the 48V load 30 changes, the data collection module 261 adjusts the output parameters of the power supply unit 10 or the output parameters of the backup power module 233 according to the voltage, current, or power of the 48V load 30. If the voltage, current, or power of the 12V load 30 changes, the data collection module 261 adjusts the output parameters of the first DCDC23 according to the voltage, current, or power of the 12V load 30. If the voltage, current or power of the 5V load 30 changes, the data acquisition module 261 adjusts the output parameters of the PMIC 25 according to the voltage, current or power of the 5V load 30 .

[0099] As an example, Figure 1 and Figure 3 As shown, the power supply system 20 includes an intelligent power module 27 (intelligent semiconductor switch), the input end of the intelligent power module 27 is connected to the main control unit 22, and the output end of the intelligent power module 27 is connected to the load 30.

[0100] Among them, DPC26 is also connected to the main control unit 22, and the load 30 is connected to DPC26 through the main control unit 22; DPC26 is configured to adjust the output parameters of the first DCDC23 and / or PMIC25 to the load 30 according to the configuration information of the main control unit 22 on the intelligent power module 27.

[0101] In this embodiment, the intelligent power module 27 (E-Fuse) has the ability to independently control the on and off of the power supply path, can independently receive power supply configuration information from the main control unit 22, and can automatically control the circuit where the channel is located based on the configuration information to protect the load 30 and the power supply system 20.

[0102] Optionally, the configuration information is configured by the main control unit 22, and the configuration information includes the type of load 30 connected to the intelligent power module 27, and operating parameters (such as rated current, voltage, power, etc.). The DPC 26 adjusts the output parameters of the first DCDC 23 and / or the PMIC 25 according to the configuration information to ensure the normal operation of the intelligent power module 27. The intelligent power module 27 protects the electronic devices on the loop based on the configuration parameters. If the voltage, current or power on the loop is abnormal (not within the configuration range of the configuration parameters), the intelligent power module 27 automatically disconnects the loop to achieve automatic protection.

[0103] As an example, in order to reduce the cost of the power supply system 20, a drive module 28 can be used to replace the intelligent power module 27. The drive module 28 is connected between the DPC 26 and the load 30, wherein the drive module 28 is configured to control the opening or closing of the circuit connected to the load 30 according to the control instruction of the DPC 26.

[0104] In this example, the driving module 28 is capable of controlling the on / off of the power supply path by the DPC 26 , and has digital-analog acquisition capability, and can provide the DPC 26 with current and voltage information of the load circuit.

[0105] In this example, the driving module 28 collects information such as the voltage and current of the load 30, and sends it to the DPC26 as the collected information. When the DPC26 determines that the load 30 is abnormal based on the collected information, it controls the driving module 28 accordingly, drives the switch component to open, so as to disconnect the circuit where the load 30 is located, and protect the circuit from abnormalities.

[0106] Since the intelligent power module 27 is expensive, the use of the driving module 28 can reduce the cost of the power supply system 20 .

[0107] As an example, the intelligent drive module 28 and the drive module 28 may also be configured according to the type of the load 30. For example, for some loads 30, the intelligent power module 27 is used for protection. For some loads 30, the drive module 28 is used for protection. For details, please refer to Figure 2 and Figure 4 .

[0108] The power supply system 20 proposed in the above embodiment of the present application can realize the functions of power distribution to different types of loads 30, dynamic adjustment of output parameters of power distribution, and intelligent insurance. The following is a description of the functions respectively according to the implementation method:

[0109] As an example, combining Figure 1 and Figure 2 The power supply system 20 provides multiple voltages to supply power to different types of loads 30. Taking the power supply voltage of 48V as an example, the power supply system 20 can provide the load 30 with a first voltage of 48V, a second voltage of 12V, and a third voltage of 5V. It should be noted that the above-listed voltages are commonly used voltages for the load 30. The power supply system 20 of this embodiment is not limited to providing the above voltages, and the specific voltages provided can be converted based on the load 30.

[0110] The power supply system 20 includes a first DCDC23, a PMIC25, a DPC26 and a main control unit 22. The input end of the power supply system 20 is connected to an external power supply unit 10. The power supply unit 10 can be directly connected to a load 30 to provide a first voltage to the load 30. The power supply system 20 is also connected to the first DCDC23. The first DCDC23 converts the first voltage of the power supply unit into a second voltage. An output end of the first DCDC23 is connected to the PMIC25 to provide the second voltage to the PMIC25. The other output end is connected to another load 30 to directly provide the second voltage to the load 30. The PMIC25 converts the supply voltage into a third voltage. The PMIC25 is respectively connected to the DPC26, the main control unit 22 and the other load 30 to provide a third voltage to the DPC26, the main control unit 22 and the load 30.

[0111] That is, the output end of the power supply unit 10 is connected to the load 30 to form a 48V load 30 power supply circuit. The output end of the power supply unit 10 is connected to the first DCDC23 to provide a 48V voltage to the first DCDC23. The first DCDC23 is a 48V / 12VDCDC to convert the 48V voltage into a 12V voltage. The output end of the first DCDC23 is connected to the load 30 to form a 12V load 30 power supply circuit. The output end of the first DCDC23 is connected to the PMIC25 to provide a 12V voltage to the PMIC25. The PMIC25 includes a 12V / 5V conversion module to convert the 12V voltage into a 5V voltage. The PMIC25 is connected to the load 30 to form a 5V load 30 power supply circuit. In addition, it also includes a power supply circuit for electronic components inside the power supply system 20, for example, the PMIC25 is connected to the DPC26 to supply power to the DPC26, and the PMIC25 is connected to the main control unit 22 to supply power to the main control unit 22.

[0112] Therefore, the power supply unit in the embodiment of the present application includes power supply circuits corresponding to multiple voltages (48V, 12V and 5V), realizes power distribution to different types of loads 30 (loads 30 with different rated voltages), and at the same time completes power supply to other electronic components in the power supply system 20, ensuring the normal power supply and operation of the power supply system 20. Moreover, all power supply circuits do not need to pass through the main control unit 22. When the main control unit 22 is in low power consumption mode, power supply to each load 30 is realized through the power distribution unit 21. When the main control unit 22 is in low power consumption mode, the normal power supply requirements of each load 30 can also be guaranteed.

[0113] As an example, combining Figure 1 and Figure 2 , the power supply system 20 can dynamically adjust the output parameters of the power distribution according to the needs of the load 30. Based on the above example, the input end of the DPC 26 is connected to the first load 30, the second load 30 and the third load 30 respectively, and the output end of the DPC 26 is connected to the first DCDC 23 and the PMIC 25 respectively. Wherein:

[0114] DPC26 obtains the collected information of 48V load 30, 12V load 30 and 5V load 30, and the collected information includes the voltage, current and power of load 30. The collected information is analyzed, and then an adjustment instruction is sent to the first DCDC23 and / or PMIC25. The first DCDC23 and / or PMIC25 adjusts the corresponding output parameters according to the adjustment instruction, so that the first DCDC23 and / or PMIC25 outputs a stable voltage (or power) to each load 30, respectively, to ensure the normal operation of each load 30.

[0115] As an example, the power supply system 20 can dynamically adjust the output parameters of the power distribution according to the needs of the load 30 when the main control unit 22 processes the low power consumption mode. In this embodiment, the power supply system 20 receives the recycling information of each load 30 through DPC26, and controls the adjustment of the output parameters of the first DCDC23 and / or PMIC25 through DPC26 without passing through the main control unit 22. When the main control unit 22 switches to the low power consumption mode based on the application's regional controller processing sleep state, the power distribution unit 21 can still dynamically adjust the output parameters of the first DCDC23 and / or PMIC25 according to the needs of the load 30, so that the input of the load 30 is stable.

[0116] In this embodiment, based on the DPC26 receiving the collection information of each load 30 and controlling the adjustment of the output parameters of the first DCDC23 and / or PMIC25 through the DPC26, the DPC26 can simultaneously collect the working information of the 5 / 12 / 48V load and adjust the output parameters of each load 30. In the related art, when the main control unit 22 adjusts the output of the 5 / 12 / 48V load 30, due to the single thread of the main control unit 22, it can only collect the current and voltage of the 5 / 12 / 48V load 30 in a polling manner, and adjust the output of the 5 / 12 / 48V load 30 one by one (only one channel can be controlled at a time, and there is no way to control it at the same time). The power supply system 20 in the embodiment of the present application can also realize timely adjustment of the output of the load 30.

[0117] As an example, Figure 3 As shown, the power supply system 20 also implements an intelligent insurance function. The power supply system 20 includes an intelligent power module 27 and / or a drive module 28, which provide on / off control for each load 30 and monitor and diagnose the power supply circuit. The main control unit 22 can configure the switch control working mode, abnormal current threshold, switch power-off duration, recovery conditions and other logic and parameters to the DPC26, PMIC25 and intelligent power module 27 according to the settings to form configuration information. During offline operation, the DPC26, PMIC25 and intelligent power module 27 can achieve the goal of saving the wiring harness of the entire vehicle and reducing the complexity of the wiring harness layout through regionalized intelligent power distribution, and provide a safe and stable power supply for the 48V / 12V / 5V load 30.

[0118] like Figure 4 As shown, an embodiment of the present application also provides an electronic device, including: a power supply unit 10, a load 30 and a power supply system 20 mentioned in the above embodiments; the output end of the power supply unit 10 is connected to the input end of the power supply system 20, and provides a first voltage to the power supply system 20, and the power supply system 20 is connected to the load 30 and supplies power to the load 30.

[0119] The power supply system 20 can supply power to a variety of loads 30 with different rated voltages. The specific implementation method can refer to the above Figure 1 and Figure 2 The embodiments shown are not described in detail here.

[0120] Optionally, the load 30 may be an actuator or a controller unit.

[0121] As an example, the output end of the power supply unit 10 is also connected to the load 30 to provide the first voltage to the load 30. That is, the first voltage can be directly provided to the load 30 whose rated voltage is the first voltage through the power supply unit 10.

[0122] As an example, the power supply unit 10 includes a battery 11 and a second DC-DC DCDC12, the input end of the second DCDC12 is connected to an external power battery, the output end of the second DCDC12 is connected to the battery 11, and is configured to convert the high voltage of the power battery into a first voltage and then charge the battery 11; the output end of the battery 11 is connected to the input end of the power supply system 20.

[0123] Among them, the second DCDC12 is HV / 48VDCDC, which is a converter that converts high voltage into low voltage. Through the second DCDC12, the power supply system 20 can be connected to an external high-voltage power battery, the voltage of the power battery can be converted into low voltage, and then power can be supplied to low-voltage components. Optionally, when the power supply system 20 is applied to a car, it can be directly connected to a high-voltage power battery to convert the high-voltage power battery into the required voltage. The power battery is a vehicle battery.

[0124] As an example, the electronic device includes a plurality of zone controllers, and each zone controller is provided with a power supply system 20 .

[0125] In this example, the power supply system 20 can be integrated into each regional controller in a modular manner. The regional controller supplies power to the secondary load 30. The power supply system 20 has strong versatility and can be applied to each regional controller.

[0126] The second DCDC 12 can adjust the power supplied to each regional controller according to the current, voltage or power fed back by the load 30 connected to each regional controller.

[0127] Optionally, the electronic device may be an electronic component on a car, or may be a car. Taking a car as an example, the car includes a plurality of zone controllers, and each zone controller is provided with the power supply system 20 .

[0128] In this embodiment, the electronic device includes the power supply system 20 , and thus the electronic device includes all functions and effects of the power supply system 20 .

[0129] Based on the above embodiments, Figure 5 It is described that in the embodiment of the present application, the zone controller is in low power consumption mode, and the working logic of each component in the zone controller is explained, and further it is described that the embodiment of the present application can realize that the zone controller is in low power consumption mode and can normally provide voltage to the load 30 to ensure the normal operation of the load 30.

[0130] The regional controller is in low power consumption mode (main control chip is in low power consumption), and this embodiment implements dynamic voltage output to the load 30 through the power distribution unit 21. The power distribution unit 21 is mainly responsible for the functions of dynamic output power adjustment, node low power consumption mode management, and output loop power supply information monitoring.

[0131] In this embodiment, the main control unit 22 supports a low power consumption mode, or supports power supply management by the PMIC 25 , and performs initialization after powering on again (or before entering a normal working mode).

[0132] In this embodiment, during the sleep process of the regional controller, DPC26 and PMIC25 always maintain power supply and working status, so that DPC26 can normally adjust the output power of the first DCDC23 and PMIC25, and can normally read the recycling information and adjust the output power of the first DCDC23 and PMIC25.

[0133] The main control unit 22 enters a low power consumption mode or is powered off by the power management chip during the sleep process of the regional controller. All application processes remain closed during the sleep process; in the normal working mode, all application processes can be guaranteed to run normally.

[0134] During the node sleep process, PMIC25 (or switch) the power supply (working mode) of the logic main control unit 22, and the node enters a low-power operation state; the first DCDC23 and PMIC25 work normally. According to the voltage / current information fed back by the collected information, DPC26 and PMIC25 can control the 48V / 12V-first DCDC23 and 12V / 5V converter respectively, dynamically adjust the output power, and provide a voltage that meets the requirements of the load 30.

[0135] As an example, no matter the main control unit 22 is in normal operation mode or low power consumption mode, DPC 26 and PMIC 25 can distribute power to the load 30 and dynamically adjust the output according to the recovery information of the load 30 .

[0136] Alternatively, in some examples, when the regional controller switches to the sleep state, the main control unit 22 sends a power-off request to the PMIC 25, at which time the main control unit 22 sends configuration information to the DPC 26, switches to the low power mode, the function of the power distribution unit 21 is awakened, and the power distribution unit 21 is switched to distribute power to the load 30 and dynamically adjust the output according to the recovery information of the load 30. When the main control unit 22 switches from the low power mode to the normal mode, the main control unit 22 can be switched to control the power distribution and dynamically adjust the power supply output.

[0137] In this embodiment, an independent first DCDC 23 and a PMIC 25 are used to realize dynamic power supply of the load 30 independent of the working mode of the regional controller node, and is not affected by the working mode of the regional controller.

[0138] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A power supply system, characterized in that: The power supply system comprises: a power distribution unit and a main control unit; the input end of the power distribution unit is connected to the output end of the external power supply unit, and the output end of the power distribution unit is connected to the main control unit and the load, wherein: The power distribution unit is configured to convert the first voltage provided by the power supply unit into target voltages corresponding to the main control unit and the load respectively, so as to supply power to the main control unit and the load.

2. The power supply system according to claim 1, characterized in that: The power distribution unit includes a first DC-DC DCDC and a power supply control module, the input end of the first DCDC is the input end of the power distribution unit, the first DCDC is connected to the power supply control module, and the power supply control module is connected to the load; wherein: The first DCDC is configured to provide a second voltage to the power supply control module, wherein the second voltage is lower than the first voltage; The power supply control module is configured to provide corresponding target voltages to the main control unit and the load.

3. The power supply system according to claim 2, characterized in that: The power supply control module is also configured to receive the recovery information of the load and adjust the output parameters of the first DCDC and / or the power supply control module according to the recovery information, and the output parameters include at least one of voltage, current and power.

4. The power supply system according to claim 3, characterized in that: The power supply control module includes a power management chip PMIC and a power controller DPC, the output end of the first DCDC is connected to the PMIC, the PMIC is connected to the DPC, the main control unit and the load, and the DPC is also connected to the load and the first DCDC; wherein, The PMIC is configured to provide corresponding required target voltages to the DPC, the main control unit and the load; The DPC is configured to receive the recycling information of the load and adjust the output parameters of the first DCDC and / or the PMIC according to the recycling information.

5. The power supply system according to claim 4, characterized in that: The PMIC is further configured to continue to supply power to the DPC and the connected load when power supply to the main control unit is stopped or when the main control unit is switched to a low power consumption mode; The DPC supplies power to the load, receives recycling information of the load, and adjusts output parameters of the first DCDC and / or the PMIC according to the recycling information.

6. The power supply system according to claim 4, characterized in that: The DPC includes a data collection module and a data analysis module, the data collection module is connected to the load and the data analysis module respectively, and the data analysis module is connected to the first DCDC and / or the PMIC; The data analysis module is configured to control the first DCDC and / or the PMIC according to the collected information of the data collection module.

7. The power supply system according to claim 4, characterized in that: The first DCDC includes a first conversion module and a first output parameter adjustment module, the input end of the first conversion module is the input end of the power distribution unit, the output end of the first conversion module is connected to the PMIC, and the first output parameter adjustment module is respectively connected to the first conversion module and the DPC; The first conversion module is configured to convert the first voltage into a second voltage and supply power to the PMIC; The first output parameter adjustment module is configured to receive an adjustment instruction sent by the DPC, and adjust the output parameter of the first conversion module according to the adjustment instruction.

8. The power supply system according to claim 4, characterized in that: The PMIC includes a second conversion module and a second output parameter adjustment module, the input end of the second conversion module is connected to the output end of the first DCDC, the second conversion module is respectively connected to the DPC, the main control unit and the load, and the second output parameter adjustment module is respectively connected to the DPC and the second conversion module; The second conversion module is configured to provide a third voltage to the load; The second output parameter adjustment module is configured to receive an adjustment instruction sent by the DPC, and adjust the output parameter of the second conversion module according to the adjustment instruction.

9. The power supply system according to claim 4, characterized in that: The output terminal of the first DCDC is also connected to the load and is configured to provide a second voltage to the load.

10. The power supply system according to any one of claims 4 to 9, characterized in that: The power supply system further includes an intelligent power module, the input end of the intelligent power module is connected to the main control unit, and the output end of the intelligent power module is connected to the load; wherein: The DPC is also connected to the main control unit, and the load is connected to the DPC through the main control unit and the intelligent power module; The DPC is configured to adjust output parameters of the first DCDC and / or the PMIC to the load according to configuration information of the intelligent power module by the main control unit.

11. The power supply system according to any one of claims 4 to 9, characterized in that: The power supply system further includes a driving module, wherein the driving module is connected between the DPC and the load, wherein: The driving module is configured to control the circuit connected to the load to be opened or closed according to the control instruction of the DPC.

12. An electronic device, characterized in that: include: A power supply unit, a load, and a power supply system as described in any one of claims 1 to 11, wherein the output end of the power supply unit is connected to the input end of the power supply system and provides a first voltage to the power supply system, and the power supply system is connected to the load and supplies power to the load.

13. The electronic device according to claim 12, characterized in that: The output end of the power supply unit is also connected to the load to provide a first voltage to the load.

14. The electronic device according to claim 12, characterized in that: The power supply unit includes a battery and a second DC-DC DCDC, wherein the input end of the second DC-DC DCDC is connected to an external power battery, and the output end of the second DC-DC DCDC is connected to the battery, and is configured to convert the high voltage of the power battery into the first voltage and then charge the battery; the output end of the battery is connected to the input end of the power supply system.

15. The electronic device according to any one of claims 12 to 14, characterized in that: The electronic equipment includes a plurality of zone controllers, and each of the zone controllers is provided with the power supply system.

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