Starting power supply management system, driving method thereof and vehicle

Abstract

The invention relates to a starting power supply management system, a driving method thereof and a vehicle, through the technical scheme, a starting power supply management chip in the starting power supply management system comprises a first control module, a second control module and a power supply module, and the first control module and the second control module are electrically connected with the power supply module; the power supply module is used for controlling the first control module and the second control module to work according to the same system state conversion rule, the whole starting power supply management system can be effectively managed, and the power consumption of the starting power supply management system is reduced.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a starting power management system and a driving method thereof, and a vehicle. Background Art

[0002] With the continuous improvement of the level of automotive electronics, the requirements for the automotive startup power management system are also getting higher and higher. Among them, when the startup power management system is running, it is necessary to monitor the power and bus instructions in real time to change the operating state of the system. However, when multiple chips work together, the states of the two chips cannot be synchronized, resulting in different states and power consumption of the two chips under different application conditions, which is not conducive to the management of the overall controller and system reliability. Summary of the invention

[0003] The embodiments of the present application provide a startup power management system and a driving method thereof, and a vehicle, which improve the consistency of different chip states and power consumption under different application conditions, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a startup power management system is provided, including a startup power management chip, the startup power management chip including a first control module, a second control module and a power supply module, the first control module and the second control module are electrically connected to the power supply module, and the power supply module is used to control the first control module and the second control module to operate according to the same system state transition rule.

[0005] Optionally, the power supply module includes a voltage output unit, a first voltage regulating unit electrically connected to the first control module, and a second voltage regulating unit electrically connected to the second control module, and the voltage output unit is used to synchronously output the supply voltage to the first voltage regulating unit and the second voltage regulating unit to synchronize the working states of the first control module and the second control module.

[0006] Optionally, the power supply module further includes a voltage generating unit for generating an initial voltage, and the voltage output unit is used to generate the supply voltage according to the initial voltage.

[0007] Optionally, the startup power management system has a warehouse transportation mode;

[0008] The voltage generating unit is used to stop transmitting the initial voltage to the voltage output unit when the power supply module receives the warehouse operation mode startup instruction, so that the voltage output unit stops outputting the supply voltage to the first voltage regulating unit and the second voltage regulating unit, so that the startup power management system enters the warehouse operation mode.

[0009] Optionally, the startup power management chip includes a first trigger and a charging detector;

[0010] In the warehouse operation mode, the voltage generating unit is used to supply power to at least one of the first trigger and the charging detector, so that the power supply module causes the startup power management system to exit the warehouse operation mode according to at least one of the first trigger signal generated by the first trigger and the charging detection signal generated by the charging detector.

[0011] Optionally, the power supply module further includes a third voltage regulating unit electrically connected to a peripheral circuit in the startup power management system, and the startup power management system also has a normal mode;

[0012] The voltage generating unit is used to transmit the initial voltage to the voltage output unit and output the supply voltage to the first voltage regulating unit, the second voltage regulating unit and the third voltage regulating unit when the power supply module receives at least one of the first trigger signal and the charging detection signal, so as to switch the startup power management system from the warehouse operation mode to the normal mode.

[0013] Optionally, the peripheral circuit in the startup power management system includes an analog-to-digital conversion module for detecting the electrical signal of the startup power management system, the power supply module also includes a fourth voltage regulation unit electrically connected to the analog-to-digital conversion module, and the voltage output unit is used to output the supply voltage to the fourth voltage regulation unit.

[0014] Optionally, the startup power management system also has a sleep mode;

[0015] The voltage output unit is used to stop transmitting the supply voltage to the fourth voltage regulation unit when the power supply module receives the sleep mode startup instruction, so that the analog-to-digital conversion module stops detecting the electrical signal of the startup power management system, so that the startup power management system enters the sleep mode.

[0016] Optionally, the power supply module further includes a voltage generating unit for generating an initial voltage, the voltage output unit is used to generate the supply voltage according to the initial voltage, and the startup power management chip includes a second trigger and a charging detector;

[0017] In the sleep mode, the voltage output unit is used to supply power to the second trigger, and / or the voltage generating unit is used to supply power to the charging detector, so that the power supply module enables the startup power management system to exit the sleep mode based on at least one of the second trigger signal generated by the second trigger and the charging detection signal generated by the charging detector.

[0018] Optionally, the second trigger is a first comparator in the first control module for monitoring the electrical signal of the startup power management system, and the second trigger signal is generated according to the electrical signal of the startup power management system and a preset threshold.

[0019] Optionally, the electrical signal of the startup power management system is generated according to at least one of voltage, current and temperature of the startup power management system.

[0020] Optionally, the startup power management system also has a normal mode;

[0021] The voltage generating unit is used to transmit the initial voltage to the voltage output unit when the power supply module receives at least one of the second trigger signal and the charging detection signal, and the voltage output unit is used to output the supply voltage to the first voltage regulating unit, the second voltage regulating unit and the fourth voltage regulating unit so that the startup power management system switches from the sleep mode to the normal mode.

[0022] Optionally, the peripheral circuit in the startup power management system includes a driver electrically connected between the battery and the startup power management chip. When the startup power management system switches from the sleep mode to the normal mode, the startup power management chip is used to turn off the driver, and the driver is a high-side driver or a low-side driver.

[0023] Optionally, the startup power management chip is used to shut down at least one of the first branch in the driver in which the battery charges the startup power management system and the second branch in which the startup power management system discharges the battery when the power supply module receives at least one of the second trigger signal and the charging detection signal.

[0024] Optionally, the driver is the high-side driver, and the peripheral circuit also includes a charge pump electrically connected to the startup power management chip and the high-side driver, and the charge pump is used to control the start-up status of the high-side driver according to the startup power management chip.

[0025] According to a second aspect of the present application, a method for driving a startup power management system is provided, which is applied to the startup power management system as described in any one of the above, comprising:

[0026] The first control module and the second control module are controlled by the power supply module to operate according to the same system state conversion rule.

[0027] Optionally, the power supply module includes a voltage output unit, a first voltage regulating unit electrically connected to the first control module, a second voltage regulating unit electrically connected to the second control module, and a voltage generating unit for generating an initial voltage, the voltage output unit is used to generate the supply voltage according to the initial voltage, and the system state conversion rule includes a warehouse transportation mode;

[0028] Wherein, the step of controlling the first control module and the second control module to work according to the same system state transition rule through the power supply module includes:

[0029] In response to the warehouse operation mode startup instruction, the voltage generating unit is controlled to stop transmitting the initial voltage to the voltage output unit, so that the voltage output unit stops outputting the supply voltage to the first voltage regulating unit and the second voltage regulating unit, so that the startup power management system enters the warehouse operation mode.

[0030] Optionally, the power supply module further includes a third voltage regulating unit electrically connected to a peripheral circuit in the startup power management system, and the system state transition rule further includes a normal mode;

[0031] Wherein, the step of controlling the first control module and the second control module to work according to the same system state transition rule through the power supply module includes:

[0032] In response to at least one of the first trigger signal and the charging detection signal, the voltage generating unit transmits the initial voltage to the voltage output unit, and outputs the supply voltage to the first voltage regulating unit, the second voltage regulating unit and the third voltage regulating unit, so that the startup power management system switches from the warehouse operation mode to the normal mode.

[0033] Optionally, the peripheral circuit includes an analog-to-digital conversion module for detecting an electrical signal of the startup power management chip, the power supply module also includes a fourth voltage regulating unit electrically connected to the analog-to-digital conversion module, the voltage output unit is used to output the supply voltage to the fourth voltage regulating unit, and the system state transition rule includes a sleep mode;

[0034] Wherein, the step of controlling the first control module and the second control module to work according to the same system state transition rule through the power supply module includes:

[0035] In response to the sleep mode startup instruction, the voltage output unit stops transmitting the supply voltage to the fourth voltage regulating unit, so that the analog-to-digital conversion module stops detecting the electrical signal of the startup power management system, so that the startup power management system enters the sleep mode.

[0036] According to a third aspect of the present application, a vehicle is provided, comprising a starting power management system as described in any one of the above.

[0037] In an embodiment of the present application, the startup power management chip in the startup power management system includes a first control module, a second control module and a power supply module. The first control module and the second control module are electrically connected to the power supply module. The power supply module is used to control the first control module and the second control module to operate according to the same system state transition rule, so that the first control module and the second control module can work together in the same state or mode, thereby effectively managing the entire startup power management system and reducing the power consumption of the startup power management system.

[0038] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0040] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0041] Figure 1 is a schematic diagram of the overall architecture of a startup power management system provided in an exemplary embodiment of the present disclosure;

[0042] Figure 2 is a schematic diagram of the internal architecture of a power supply module provided in an exemplary embodiment of the present disclosure;

[0043] Figure 3 Schematic diagram of system state transition rules provided in an exemplary embodiment of the present disclosure.

[0044] Description of reference numerals:

[0045] 100. Start the power management system; 10. Start the power management chip; 101. First control module; 102. Second control module; 103. Power supply module;

[0046] 1031, voltage output unit; 1032, first voltage regulating unit; 1033, second voltage regulating unit; 1034, voltage generating unit; 1035, third voltage regulating unit; 10351, fourth voltage regulating unit; 10352, fifth voltage regulating unit;

[0047] 201, first trigger; 202, charging detector; 203, second trigger;

[0048] 30. Peripheral circuit; 301. Voltage acquisition module; 302. Current acquisition module; 303. Transceiver module; 304. Analog-to-digital conversion module; 305. Driver; 306. Charge pump; 307. Charging detection module;

[0049] +Power, positive polarity terminal; -Power, negative polarity terminal;

[0050] CAN_H, first transceiver; CAN_L, second transceiver;

[0051] R1, first resistor; R2, second resistor; R3, third resistor; R4, fourth resistor; R5, fifth resistor; R11, first sub-resistor; R12, second sub-resistor;

[0052] M1, a first transistor; M2, a second transistor; M3, a third transistor;

[0053] D1, first diode; D2, second diode; D3, third diode; D4, fourth diode; D5, fifth diode;

[0054] C1, first capacitor; C2, second capacitor; C3, third capacitor;

[0055] Battery Pack B. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0057] According to the first aspect of the present application, referring to Figure 1 and Figure 2The present disclosure provides a startup power management system 100, including a startup power management chip 10, wherein the startup power management chip 10 includes a first control module 101, a second control module 102, and a power supply module 103. The first control module 101 and the second control module 102 are electrically connected to the power supply module 103, and the power supply module 103 is used to control the first control module 101 and the second control module 102 to work according to the same system state transition rule.

[0058] Among them, the startup power management system 100 can be charged by a battery and can also be discharged through a load. After being charged, the power supply module 103 can drive the first control module 101 and the second control module 102 to work to control the corresponding load to work. The first control module 101 and the second control module 102 can also control the startup power management system 100 to charge or discharge. Among them, the above-mentioned startup power management system 100 can be applied to the management and control of lithium batteries. The first control module 101 can be a battery sampling chip, and the second control module 102 can be a single-chip microcomputer. The startup power management chip 10 can be, but not limited to, an ASIC (Application Specific Integrated Circuit, an integrated circuit for special applications) chip, which is an integrated circuit designed for a special purpose.

[0059] Specifically, when the startup power management system 100 is running, it is necessary to monitor the power and bus instructions in real time to change the operating state of the system. For example, when the startup power management system 100 receives gear information in sleep mode, it needs to immediately enter a normal working state, or after detecting that the power of the small battery drops below a certain threshold, it needs to enter a low power consumption state to ensure the power of the vehicle. "Normal working state" and "low power consumption state" can be considered as the characteristics of the startup power management system 100 in normal mode. However, when multiple chips in the startup power management system 100 work in collaboration, if the states of multiple chips cannot be synchronized, different states and power consumption of different chips may be different under different application conditions, resulting in a more complicated state of the startup power management system 100, which is not conducive to the management of the master controller and system reliability.

[0060] It can be understood that the first control module 101 and the second control module 102 of the present application are both controlled by the same power supply module 103, and the power supply module 103 controls the operation of the first control module 101 and the second control module 102 according to the same system state transition rule. The system state transition rule can unify the working state of the first control module 101 and the second control module 102 inside the startup power management system 100 through the power supply module 103 (corresponding to one of the warehouse operation mode, sleep mode, and normal mode of the startup power management system 100), so that the first control module 101 and the second control module 102 can work together in the same working state, so that the startup power management system 100 is in one of the warehouse operation mode, sleep mode, and normal mode, thereby effectively managing the entire startup power management system 100. In addition, the operation of the first control module 101 and the second control module 102 is related to the switching of the system state, realizing the unified switching of the working states of the two in the above three modes, thereby reducing the power consumption of the startup power management system 100.

[0061] In some embodiments, reference Figure 1 and Figure 2 The power supply module 103 includes a voltage output unit 1031, a first voltage regulating unit 1032 electrically connected to the first control module 101, and a second voltage regulating unit 1033 electrically connected to the second control module 102. The voltage output unit 1031 is used to synchronously output a power supply voltage V1 to the first voltage regulating unit 1032 and the second voltage regulating unit 1033, so as to synchronize the working states of the first control module 101 and the second control module 102.

[0062] In combination with the above discussion, it can be seen that in this embodiment, the power supply module 103 is configured to include the above-mentioned voltage output unit 1031, the first voltage regulating unit 1032, and the second voltage regulating unit 1033. By synchronously outputting the power supply voltage V1 to the first voltage regulating unit 1032 and the second voltage regulating unit 1033, the first control module 101 and the second control module 102 both synchronously receive the corresponding electrical signals to synchronize the working states of the two. Based on the same system state transition rule, the working states of the first control module 101 and the second control module 102 can be uniformly switched in the above-mentioned three modes.

[0063] In some embodiments, reference Figure 1 and Figure 2The power supply module 103 further includes a voltage generating unit 1034 for generating an initial voltage V2, and the voltage output unit 1031 is used to generate the supply voltage V1 according to the initial voltage V2. The voltage generating unit 1034 can process the charging voltage V3 obtained after the startup power management chip 10 is charged to generate the initial voltage V2.

[0064] Specifically, the voltage generating unit 1034 may be, but is not limited to, a bandgap reference circuit, for example, utilizing the sum of a voltage with a positive temperature coefficient and a voltage with a negative temperature coefficient, the temperature coefficients of the two canceling each other out, thereby realizing a temperature-independent voltage reference (i.e., the initial voltage V2 mentioned above), so that the initial voltage V2 generated by the voltage generating unit 1034 is less affected by the external environment.

[0065] Specifically, the voltage output unit 1031 may be, but is not limited to, a power management circuit, which may, for example, convert an unstable voltage into a relatively stable output voltage for use by subsequent circuits (e.g., the first voltage regulating unit 1032 and the second voltage regulating unit 1033). Furthermore, the voltage output unit 1031 may also have a feedback mechanism to avoid the problem of drastic changes in the output voltage when the load is overloaded or short-circuited.

[0066] In some embodiments, reference Figures 1 to 3 , the startup power management system 100 has a warehouse operation mode. The voltage generating unit 1034 is used to stop transmitting the initial voltage V2 to the voltage output unit 1031 when the power supply module 103 receives the warehouse operation mode startup instruction, so that the voltage output unit 1031 stops outputting the supply voltage V1 to the first voltage regulating unit 1032 and the second voltage regulating unit 1033, so that the startup power management system 100 enters the warehouse operation mode.

[0067] Among them, the warehouse transportation mode can be understood as a mode in which the main body of the power management system 100 that starts up enters a means of transportation such as a ship cabin, which can replace the main body for operation, so that the main body basically does not need to operate autonomously. Since the main body basically does not need to operate autonomously in this mode, the warehouse transportation mode startup instruction of this embodiment can be generated according to the external "the main body enters a means of transportation such as a ship cabin, which can drive the main body to operate, so that the main body basically does not need to operate autonomously" or "the main body is extremely powered". In addition, the warehouse transportation mode startup instruction controls the voltage generation unit 1034 to stop transmitting the initial voltage V2 to the voltage output unit 1031. Although the power supply module 103 still receives the charging voltage V3, it avoids the power supply module 103 supplying power to the first control module 101 and the second control module 102, thereby reducing the power consumption of the startup power management system 100 and improving the consistency of the working states of the first control module 101 and the second control module 102.

[0068] In some embodiments, reference Figures 1 to 3 , the startup power management chip 10 includes a first trigger 201 and a charging detector 202. In the warehouse operation mode, the voltage generation unit 1034 is used to supply power to at least one of the first trigger 201 and the charging detector 202, so that the power supply module 103 controls the startup power management system 100 to exit the warehouse operation mode according to at least one of the first trigger signal generated by the first trigger 201 and the charging detection signal generated by the charging detector 202.

[0069] Among them, the first trigger 201 can generate a first trigger signal when "the subject including the power management system 100 is started leaves a cabin or other means of transportation" or when triggered manually, and the charging detector 202 can generate a charging detection signal when "the subject including the power management system 100 is started is charged".

[0070] It can be understood that in the warehouse transportation mode, the voltage generating unit 1034 of this embodiment no longer transmits the initial voltage V2 to the voltage output unit 1031, but supplies power to at least one of the first trigger 201 and the charging detector 202, so that when the startup power management system 100 faces situations such as "the main body including the startup power management system 100 leaves the cabin or other means of transportation", manual triggering, and "the main body including the startup power management system 100 is charging", at least one of the first trigger signal generated by the first trigger 201 and the charging detection signal generated by the charging detector 202 controls the startup power management system 100 to exit the warehouse transportation mode.

[0071] Therefore, in the warehouse transportation mode, this embodiment only retains the voltage generating unit 1034 to supply power to at least one of the first trigger 201 and the charging detector 202. While the voltage output unit 1031 and the first control module 101 and the second control module 102 powered by it are turned off to reduce the power consumption of the startup power management system 100, the startup power management system 100 can also exit the warehouse transportation mode when facing situations such as "the main body including the startup power management system 100 leaves the cabin or other means of transportation", human triggering, "when the main body including the startup power management system 100 is charging", etc.

[0072] In some embodiments, reference Figures 1 to 3The power supply module 103 further includes a third voltage regulating unit 1035 electrically connected to the peripheral circuit 30 in the startup power management system 100, and the startup power management system 100 also has a normal mode. The voltage generating unit 1034 is used to transmit the initial voltage V2 to the voltage output unit 1031 when the power supply module 103 receives at least one of the first trigger signal and the charging detection signal, and output the supply voltage V1 to the first voltage regulating unit 1032, the second voltage regulating unit 1033 and the third voltage regulating unit 1035, so that the startup power management system 100 switches from the warehouse transportation mode to the normal mode.

[0073] Specifically, Figure 1 As shown, the peripheral circuit 30 may include a voltage acquisition module 301 for acquiring the voltage of the startup power management system 100, a current acquisition module 302 for acquiring the current of the startup power management system 100, and a transceiver module 303 for communicating with other systems in the "main body including the startup power management system 100". Taking the first control module 101 as a battery sampling chip and the second control module 102 as a single-chip microcomputer as an example, the voltage acquisition module 301 and the current acquisition module 302 can communicate with the first control module 101, and the transceiver module 303 can communicate with the second control module 102.

[0074] In combination with the above discussion, it can be known that the power supply module 103 starts the power management system 100 to exit the warehouse operation mode according to at least one of the first trigger signal and the charging detection signal. The power supply module 103 of this embodiment also includes a third voltage regulating unit 1035 electrically connected to the peripheral circuit 30. The voltage generating unit 1034 outputs the supply voltage V1 to the first voltage regulating unit 1032, the second voltage regulating unit 1033 and the third voltage regulating unit 1035 according to at least one of the first trigger signal and the charging detection signal, so as to control the first control module 101, the second control module 102 and the peripheral circuit 30 to work, that is, the power management system 100 is switched from the warehouse operation mode to the normal mode.

[0075] Therefore, in normal mode, since the first control module 101, the second control module 102 and the peripheral circuit 30 are all working, the first control module 101 and the second control module 102 can also drive the peripheral circuit 30 to work. Therefore, starting the power management system 100 can perform routine parameter measurements, monitor the current status of the system, and exchange information and data with external systems.

[0076] In some embodiments, reference Figures 1 to 3The peripheral circuit 30 in the startup power management system 100 includes an analog-to-digital conversion module 304 for detecting the electrical signal of the startup power management system 100. The power supply module 103 also includes a fourth voltage adjustment unit 10351 (included in the third voltage adjustment unit 1035) electrically connected to the analog-to-digital conversion module 304, and the voltage output unit 1031 is used to output the supply voltage V1 to the fourth voltage adjustment unit 10351.

[0077] The analog-to-digital conversion module 304 may include an analog-to-digital converter and a digital comparator. The current collected by the current acquisition module 302 may be an analog current signal, the analog-to-digital converter may convert the analog current signal into a digital current signal, and the digital comparator may generate a first comparison signal based on the digital current signal, and the first comparison signal may characterize the current magnitude of the startup power management system 100. Of course, the voltage collected by the voltage acquisition module 301 may also be an analog voltage signal, and the analog-to-digital conversion module 304 may also communicate with the voltage acquisition module 301 to generate a second comparison signal that may characterize the voltage magnitude of the startup power management system 100. Figure 1 Only the communication between the analog-to-digital conversion module 304 and the current acquisition module 302 is shown. Since both the first comparison signal and the second comparison signal are determined by a digital comparator, they have higher reliability than those determined by an analog comparator.

[0078] Specifically, the peripheral circuit 30 of this embodiment includes an analog-to-digital conversion module 304, and the power supply module 103 also includes a fourth voltage adjustment unit 10351 for supplying power to the analog-to-digital conversion module 304. The power supply voltage V1 is output to the fourth voltage adjustment unit 10351 through the voltage output unit 1031, thereby supplying power to the analog-to-digital conversion module 304, so as to improve the reliability of detecting the electrical signal for starting the power management system 100.

[0079] In some embodiments, reference Figures 1 to 3 The startup power management system 100 also has a sleep mode; the voltage output unit 1031 is used to stop transmitting the supply voltage V1 to the fourth voltage adjustment unit 10351 when the power supply module 103 receives a sleep mode startup instruction, so that the analog-to-digital conversion module 304 stops detecting the electrical signal of the startup power management system 100, so that the startup power management system 100 enters the sleep mode.

[0080] Among them, the sleep mode can be understood as the main body of the startup power management system 100 being in a standby state, that is, the main body can stop the high-power test function and only enable some low-power wake-up modules, so that the startup power management system 100 can be awakened and processed in time from abnormal working conditions or bus information to ensure the safety and reliability of the startup power management system 100. Compared with the warehouse mode, the power consumption of the sleep mode is slightly higher.

[0081] The similarity with the warehouse operation mode is that, since most of the high-power consumption operations of the main body do not need to be run in the sleep mode, the sleep mode startup instruction of this embodiment can also be generated according to whether the actual application scenario of the outside world has a low power consumption requirement, and the sleep mode startup instruction controls the voltage output unit 1031 to stop transmitting the power supply voltage V1 to the fourth voltage regulating unit 10351. Although the power supply module 103 still receives the charging voltage V3, it avoids the power supply module 103 supplying power to the analog-to-digital conversion module 304, thereby reducing the power consumption of the startup power management system 100 and improving the consistency of the working states of the first control module 101 and the second control module 102. Among them, the system power consumption of the startup power management system 100 working in the warehouse operation mode is lower than the system power consumption working in the sleep mode.

[0082] Among them, the startup power management system 100 can also switch from sleep mode to warehouse transportation mode, and the trigger mechanism can be triggered by the external environment, such as the above-mentioned "the subject enters a transportation tool such as a cabin to drive the subject to run, and the subject basically does not need to run autonomously" or "the subject is extremely powered".

[0083] In some embodiments, reference Figures 1 to 3 , the power supply module 103 further includes a voltage generating unit 1034 for generating an initial voltage V2, the voltage output unit 1031 is used to generate the supply voltage V1 according to the initial voltage V2, and the startup power management chip 10 includes a second trigger 203 and a charging detector 202. In the sleep mode, the voltage output unit 1031 is used to supply power to the second trigger 203, and / or the voltage generating unit 1034 is used to supply power to the charging detector 202, so that the power supply module 103 controls the startup power management system 100 to exit the sleep mode according to at least one of the second trigger signal generated by the second trigger 203 and the charging detection signal generated by the charging detector 202.

[0084] Among them, the second trigger 203 can generate a second trigger signal when "the actual application scenario of the outside world is low power consumption requirement", when it is manually triggered, or when the parameters inside the startup power management system 100 exceed the preset range, and the charging detector 202 can generate a charging detection signal when "the main body including the startup power management system 100 is charged". Specifically, the charging detector 202 can control whether to generate a charging detection signal by identifying the potential of the output end of the charging detection module 307 in the peripheral circuit 30.

[0085] It can be understood that in the sleep mode of this embodiment, the voltage output unit 1031 no longer transmits the supply voltage V1 to the fourth voltage regulating unit 10351. However, the voltage output unit 1031 supplies power to the second trigger 203, and / or the voltage generating unit 1034 supplies power to the charging detector 202, so that the startup power management system 100 can exit the sleep mode through at least one of the second trigger signal generated by the second trigger 203 and the charging detection signal generated by the charging detector 202 when facing the situations such as "the actual application scenario of the outside world is low power consumption requirement", when triggered manually, when the parameters inside the startup power management system 100 exceed the preset range, and when "the main body including the startup power management system 100 is charged".

[0086] Therefore, in the sleep mode, this embodiment retains the voltage output unit 1031 to supply power to the second trigger 203, and / or retains the voltage generating unit 1034 to supply power to the charging detector 202. While the fourth voltage regulating unit 10351 and the analog-to-digital conversion module 304 it supplies power to are turned off to reduce the power consumption of the startup power management system 100, the startup power management system 100 can also exit the sleep mode when faced with "the actual application scenario in the outside world has a low power consumption requirement", when manually triggered, when the parameters inside the startup power management system 100 exceed the preset range, and when "the main body of the startup power management system 100 is charging".

[0087] In some embodiments, reference Figures 1 to 3 The second trigger 203 is a first comparator (which may be an analog comparator) in the first control module 101 (for example, a battery sampling chip) for monitoring the electrical signal of the startup power management system 100, and the second trigger signal is generated based on the electrical signal of the startup power management system 100 and a preset threshold.

[0088] As can be seen from the above discussion, the current collected by the current collection module 302 in the peripheral circuit 30 in the startup power management system 100 may be an analog current signal, and / or the voltage collected by the voltage collection module 301 may also be an analog voltage signal.

[0089] The electrical signal of the startup power management system 100 is generated according to at least one of the voltage (when the electrical signal is an analog voltage signal), the current (when the electrical signal is an analog current signal), and the temperature (when the electrical signal is an analog voltage signal or an analog current signal) of the startup power management system 100. The current acquisition module 302 can generate a corresponding voltage or current as an analog voltage signal or an analog current signal according to the temperature of the startup power management system 100.

[0090] The analog comparator (i.e., the first comparator, i.e., the second trigger 203) in the first control module 101 (e.g., a battery sampling chip) of this embodiment can generate a third comparison signal according to the analog current signal, and / or can generate a fourth comparison signal according to the analog voltage signal. Similarly, the third comparison signal can represent the current size of the startup power management chip 10, and the fourth comparison signal can represent the voltage size of the startup power management chip 10.

[0091] Compared with the above-mentioned digital comparator, the comparison signal generated by the analog comparator has lower accuracy, so its power consumption is also lower. In this embodiment, in sleep mode, the voltage output unit 1031 can be controlled to supply power to the second trigger 203 to generate a comparison signal according to the current acquisition module 302 and / or the voltage acquisition module 301. The comparison signal (i.e., the second trigger signal) can be generated by the second trigger 203 when comparing the above-mentioned analog current signal and the analog voltage signal (i.e., the electrical signal for starting the power management system 100) to be greater than a preset threshold. The startup power management system 100 configures the preset threshold according to the application environment.

[0092] In some embodiments, reference Figures 1 to 3 , the startup power management system 100 also has a normal mode. The voltage generating unit 1034 is used to transmit the initial voltage V2 to the voltage output unit 1031 when the power supply module 103 receives at least one of the second trigger signal and the charging detection signal, and the voltage output unit 1031 is used to output the supply voltage V1 to the first voltage regulating unit 1032, the second voltage regulating unit 1033 and the fourth voltage regulating unit 10351, so that the startup power management system 100 switches from the sleep mode to the normal mode. Among them, the system power consumption of the startup power management system 100 working in the sleep mode is lower than the system power consumption working in the normal mode.

[0093] The fourth voltage regulating unit 10351 of this embodiment is one of the third voltage regulating units 1035 for supplying power to the analog-to-digital conversion module 304 . The third voltage regulating unit 1035 may also include a fifth voltage regulating unit 10352 for supplying power to other modules in the peripheral circuit 30 .

[0094] In combination with the above discussion, it can be known that the power supply module 103 causes the startup power management system 100 to exit the warehouse operation mode according to at least one of the second trigger signal and the charging detection signal. The voltage output unit 1031 outputs the power supply voltage V1 to the first voltage adjustment unit 1032, the second voltage adjustment unit 1033, and at least the fourth voltage adjustment unit 10351 of the third voltage adjustment unit 1035 according to at least one of the second trigger signal and the charging detection signal, so as to control the first control module 101, the second control module 102, and the analog-to-digital conversion module 304 in the peripheral circuit 30 to work. Of course, the power supply voltage V1 can also be output to the fifth voltage adjustment unit 10352 to control the entire peripheral circuit 30 to work, so that the startup power management system 100 switches from the sleep mode to the normal mode.

[0095] In the normal mode, please refer to the above description.

[0096] In combination with the above discussion, it can be seen that in sleep mode, by stopping the transmission of the power supply voltage V1 to the fourth voltage regulation unit 10351, the analog-to-digital conversion module 304 stops detecting the electrical signal for starting the power management system 100, and retains certain trigger functions (i.e., supplying power to the second trigger 203) and / or hardware protection functions (i.e., supplying power to the charging detector 202), that is, retaining the over-current protection, over-temperature protection, over-voltage protection and charging detection functions inherent in the normal mode.

[0097] Furthermore, the communication function can be retained in sleep mode, that is, power can be supplied to the transceiver controller (not shown) in the startup power management chip 10 for controlling the transceiver module 303 in the peripheral circuit 30, so that the transceiver module 303 can identify whether other systems in the "main body including the startup power management system 100" communicate with the startup power management system 100, so as to check the basic situation of the system operating environment.

[0098] In some embodiments, reference Figures 1 to 3 The peripheral circuit 30 includes a driver 305 electrically connected between a battery (including a positive polarity terminal +Power and a negative polarity terminal -Power) and the startup power management chip 10. When the startup power management system 100 switches from the sleep mode to the normal mode, the startup power management chip 10 is used to turn off the driver 305. The driver 305 is a high-side driver or a low-side driver.

[0099] If the driver 305 is a high-side driver, it is electrically connected between the positive polarity terminal +Power of the battery and the startup power management chip 10, and if the driver 305 is a low-side driver, it is electrically connected between the negative polarity terminal -Power of the battery and the startup power management chip 10. The driver 305 is used to control whether the battery and the startup power management system 100 are electrically connected, thereby controlling whether the two can be charged or discharged.

[0100] In some embodiments, reference Figures 1 to 3 The startup power management chip 10 is used to close at least one of the first branch in the driver 305 for charging the startup power management system 100 from the battery and the second branch for discharging from the startup power management system 100 to the battery when the power supply module 103 receives at least one of the second trigger signal and the charging detection signal.

[0101] It can be understood that when this embodiment receives at least one of the second trigger signal and the charging detection signal, it indicates that the startup power management system 100 is in an overcurrent, overtemperature, overvoltage or charging state. Specifically, according to whether the above-mentioned overcurrent, overtemperature, overvoltage or charging state exists in the charging or discharging of the startup power management system 100, the first branch and at least one of the first branches are closed by closing the driver 305 to close at least one of the charging and discharging of the startup power management system 100 to prevent the fault from expanding.

[0102] At the same time, when the startup power management system 100 is in an overcurrent, overtemperature, overvoltage or charging state, the startup power management system 100 switches from sleep mode to normal mode to supply power to the fourth voltage regulation unit 10351, thereby turning on the analog-to-digital conversion module 304 (including an analog-to-digital converter and a digital comparator), thereby improving the reliability of electrical signal detection of the startup power management system 100.

[0103] In some embodiments, reference Figures 1 to 3 , the driver 305 is the high-side driver, and the peripheral circuit 30 also includes a charge pump 306 electrically connected to the startup power management chip 10 and the high-side driver (i.e., the driver 305), and the charge pump 306 is used to control the start-up status of the high-side driver 305 according to the startup power management chip 10.

[0104] Specifically, Figure 1As shown, the high-side driver is electrically connected to the positive polarity terminal +Power of the battery, and may include a first resistor R1, a first transistor M1, a second transistor M2, a third transistor M3, a first diode D1 electrically connected to the first transistor M1, a second diode D2 electrically connected to the second transistor M2, and a third diode D3 electrically connected to the third transistor M3. The specific connection methods of the above-mentioned components can be referred to Figure 1 The charge pump 306 may include a second resistor R2, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth diode D4, and a fifth diode D5. The specific connection method of the above diodes can be referred to. Figure 1 .

[0105] Among them, the charge pump 306 can control the conduction status of the three transistors in the high-side driver. For example, the charge pump 306 can be controlled by the startup power management chip 10 to provide a suitable potential to the source or drain of the three transistors in the high-side driver. The startup power management chip 10 can control the potential of the gate of the three transistors in the high-side driver to control the conduction status of the three.

[0106] The first transistor M1 is used to pre-charge the startup power management system 100. When the second transistor M2 and the third transistor M3 are both turned on, it can be considered that a first branch is formed from the battery to charge the startup power management system 100. When there is overcurrent, overtemperature or overvoltage during the charging process, the startup power management chip 10 can turn off the third transistor M3 to turn off the first branch, and the battery pack B (for example, included in the voltage acquisition module 301) of the startup power management system 100 can discharge to the above battery. When there is overcurrent, overtemperature or overvoltage during the discharge process, the startup power management chip 10 can turn off the second branch by turning off the second transistor M2, and the battery charges the battery pack B of the startup power management system 100.

[0107] It should be noted that, whether in sleep mode or warehouse operation mode, power can be supplied to the charging detector 202 to enable it to have a charging detection function, ensuring that the startup power management system 100 can sense the charging signal released from the vehicle domain in a timely manner, and preventing the battery pack B of the startup power management system 100 from autonomously and continuously charging and causing serious events such as overvoltage, overcurrent and overtemperature.

[0108] Reference Figures 1 to 3, the charging detection module 307 in the present application may include a third resistor R3 electrically connected between the battery and the startup power management chip 10. The transceiver module 303 may include a fourth resistor R4 electrically connected to the startup power management chip 10, a first transceiver terminal CAN_H and a second transceiver terminal CAN_L electrically connected to the fourth resistor R4. The battery pack B in the voltage acquisition module 301 may include a plurality of sub-batteries connected in series, each sub-battery being electrically connected to the startup power management chip 10 or to ground through a first sub-resistor R11 and a second sub-resistor R12 connected in parallel. The current acquisition module 302 may include a fifth resistor R5 electrically connected to the startup power management chip 10 and to ground.

[0109] According to a second aspect of the present disclosure, a vehicle is provided, the vehicle comprising the above-mentioned initial power management system. The vehicle has all the beneficial effects of the above-mentioned initial power management system, which will not be described in detail in the present disclosure.

[0110] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and the present disclosure does not make any specific limitation on this.

[0111] According to a third aspect of the present application, the present disclosure provides a method for driving a startup power management system, which is applied to the startup power management system 100 as described in any one of the above, referring to Figures 1 to 3 , including: controlling the first control module and the second control module to work according to the same system state conversion rule through the power supply module.

[0112] The power supply module 103 , the first control module 101 , the second control module 102 and the “system state transition rule” may refer to the above related descriptions.

[0113] It can be understood that the first control module 101 and the second control module 102 of the present application are both controlled by the same power supply module 103, and the power supply module 103 controls the operation of the first control module 101 and the second control module 102 according to the same system state transition rule. The system state transition rule can unify the working state of the first control module 101 and the second control module 102 inside the startup power management system 100 through the power supply module 103 (corresponding to one of the warehouse operation mode, sleep mode, and normal mode of the startup power management system 100), so that the first control module 101 and the second control module 102 can work together in the same working state, so that the startup power management system 100 is in one of the warehouse operation mode, sleep mode, and normal mode, thereby effectively managing the entire startup power management system 100. In addition, by associating the operation of the first control module 101 and the second control module 102 with the switching of the system state, the unified switching of the working states of the two in the above three modes is achieved, thereby reducing the power consumption of the startup power management system 100.

[0114] In some embodiments, reference Figures 1 to 3 The power supply module 103 includes the above-mentioned voltage output unit 1031, the first voltage regulating unit 1032, the second voltage regulating unit 1033, and the voltage generating unit 1034. The voltage output unit 1031 is used to generate the supply voltage V1 according to the initial voltage V2. The system state conversion rule includes a warehouse operation mode. These technical features can also refer to the relevant description above.

[0115] Among them, the step of controlling the first control module and the second control module to operate according to the same system state transition rule through the power supply module includes: responding to the warehouse operation mode startup instruction, controlling the voltage generating unit to stop transmitting the initial voltage to the voltage output unit, so that the voltage output unit stops outputting the supply voltage to the first voltage regulating unit and the second voltage regulating unit, and controlling the startup power management system to enter the warehouse operation mode.

[0116] It can be understood that the warehouse operation mode startup instruction controls the voltage generating unit 1034 to stop transmitting the initial voltage V2 to the voltage output unit 1031. Although the power supply module 103 still receives the charging voltage V3, it avoids the power supply module 103 from supplying power to the first control module 101 and the second control module 102, thereby reducing the power consumption of the startup power management system 100 and improving the consistency of the working status of the first control module 101 and the second control module 102.

[0117] In some embodiments, reference Figures 1 to 3The power supply module 103 also includes the third voltage regulating unit 1035 mentioned above, and the system state transition rule also includes a normal mode.

[0118] Among them, the step of controlling the first control module and the second control module to operate according to the same system state transition rule through the power supply module includes: in response to at least one of the first trigger signal and the charging detection signal, the voltage generating unit transmits the initial voltage to the voltage output unit, and outputs the supply voltage to the first voltage regulating unit, the second voltage regulating unit and the third voltage regulating unit, so that the startup power management system switches from the warehouse operation mode to the normal mode.

[0119] Among them, the power supply module 103 of this embodiment also includes a third voltage regulating unit 1035 electrically connected to the peripheral circuit 30. The voltage generating unit 1034 outputs the power supply voltage V1 to the first voltage regulating unit 1032, the second voltage regulating unit 1033 and the third voltage regulating unit 1035 according to at least one of the first trigger signal and the charging detection signal. The first control module 101, the second control module 102 and the peripheral circuit 30 can be controlled to work, that is, the power management system 100 is started to switch from the warehouse operation mode to the normal mode.

[0120] In some embodiments, reference Figures 1 to 3 The peripheral circuit 30 includes the above-mentioned analog-to-digital conversion module 304, the power supply module 103 also includes a fourth voltage adjustment unit 10351 electrically connected to the analog-to-digital conversion module 304, the voltage output unit 1031 is used to output the supply voltage V1 to the fourth voltage adjustment unit 10351, and the system state transition rule includes a sleep mode.

[0121] Among them, the step of controlling the first control module and the second control module to operate according to the same system state transition rule through the power supply module includes: in response to the sleep mode startup instruction, the voltage output unit stops transmitting the supply voltage to the fourth voltage regulation unit, so that the analog-to-digital conversion module stops detecting the electrical signal of the startup power management system, so that the startup power management system enters the sleep mode.

[0122] Among them, the sleep mode startup instruction of this embodiment can also be generated according to whether the actual application scenario of the outside world has a low power consumption requirement, and the sleep mode startup instruction controls the voltage output unit 1031 to stop transmitting the power supply voltage V1 to the fourth voltage adjustment unit 10351. Although the power supply module 103 still receives the charging voltage V3, the power supply module 103 is prevented from supplying power to the analog-to-digital conversion module 304, thereby reducing the power consumption of the startup power management system 100 and improving the consistency of the working states of the first control module 101 and the second control module 102.

[0123] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0124] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0125] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0126] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A startup power management system, characterized in that: It includes a startup power management chip, which includes a first control module, a second control module and a power supply module. The first control module and the second control module are electrically connected to the power supply module. The power supply module is used to control the first control module and the second control module to work according to the same system state conversion rule.

2. The startup power management system according to claim 1, characterized in that: The power supply module includes a voltage output unit, a first voltage regulating unit electrically connected to the first control module, and a second voltage regulating unit electrically connected to the second control module. The voltage output unit is used to synchronously output the supply voltage to the first voltage regulating unit and the second voltage regulating unit to synchronize the working states of the first control module and the second control module.

3. The startup power management system according to claim 2, characterized in that: The power supply module further includes a voltage generating unit for generating an initial voltage, and the voltage output unit is used to generate the supply voltage according to the initial voltage.

4. The startup power management system according to claim 3, characterized in that: The startup power management system has a warehouse transportation mode; The voltage generating unit is used to stop transmitting the initial voltage to the voltage output unit when the power supply module receives the warehouse operation mode startup instruction, so that the voltage output unit stops outputting the supply voltage to the first voltage regulating unit and the second voltage regulating unit, so that the startup power management system enters the warehouse operation mode.

5. The startup power management system according to claim 4, characterized in that: The startup power management chip includes a first trigger and a charging detector; In the warehouse operation mode, the voltage generating unit is used to supply power to at least one of the first trigger and the charging detector, so that the power supply module controls the startup power management system to exit the warehouse operation mode according to at least one of the first trigger signal generated by the first trigger and the charging detection signal generated by the charging detector.

6. The startup power management system according to claim 5, characterized in that: The power supply module further includes a third voltage regulating unit electrically connected to the peripheral circuit in the startup power management system, and the startup power management system also has a normal mode; The voltage generating unit is used to transmit the initial voltage to the voltage output unit and output the supply voltage to the first voltage regulating unit, the second voltage regulating unit and the third voltage regulating unit when the power supply module receives at least one of the first trigger signal and the charging detection signal, so as to switch the startup power management system from the warehouse operation mode to the normal mode.

7. The startup power management system according to any one of claims 2 to 6, characterized in that: The peripheral circuit in the startup power management system includes an analog-to-digital conversion module for detecting the electrical signal of the startup power management system. The power supply module also includes a fourth voltage adjustment unit electrically connected to the analog-to-digital conversion module. The voltage output unit is used to output the supply voltage to the fourth voltage adjustment unit.

8. The startup power management system according to claim 7, characterized in that: The startup power management system also has a sleep mode; The voltage output unit is used to stop transmitting the supply voltage to the fourth voltage regulation unit when the power supply module receives the sleep mode startup instruction, so that the analog-to-digital conversion module stops detecting the electrical signal of the startup power management system, so that the startup power management system enters the sleep mode.

9. The startup power management system according to claim 8, characterized in that: The power supply module further includes a voltage generating unit for generating an initial voltage, the voltage output unit is used to generate the supply voltage according to the initial voltage, and the startup power management chip includes a second trigger and a charging detector; In the sleep mode, the voltage output unit is used to supply power to the second trigger, and / or the voltage generating unit is used to supply power to the charging detector, so that the power supply module controls the startup power management system to exit the sleep mode according to at least one of the second trigger signal generated by the second trigger and the charging detection signal generated by the charging detector.

10. The startup power management system according to claim 9, characterized in that: The second trigger is a first comparator in the first control module for monitoring the electrical signal of the startup power management system, and the second trigger signal is generated according to the electrical signal of the startup power management system and a preset threshold.

11. The startup power management system according to claim 10, characterized in that: The electrical signal of the startup power management system is generated according to at least one of the voltage, current, and temperature of the startup power management system.

12. The startup power management system according to claim 11, characterized in that: The startup power management system also has a normal mode; The voltage generating unit is used to transmit the initial voltage to the voltage output unit when the power supply module receives at least one of the second trigger signal and the charging detection signal, and the voltage output unit is used to output the supply voltage to the first voltage regulating unit, the second voltage regulating unit and the fourth voltage regulating unit so that the startup power management system switches from the sleep mode to the normal mode.

13. The startup power management system according to claim 12, characterized in that: The peripheral circuit in the startup power management system includes a driver electrically connected between the battery and the startup power management chip. When the startup power management system switches from the sleep mode to the normal mode, the startup power management chip is used to turn off the driver, and the driver is a high-side driver or a low-side driver.

14. The startup power management system according to claim 13, characterized in that: The startup power management chip is used to shut down at least one of the first branch in the driver that charges the startup power management system from the battery and the second branch that discharges the startup power management system to the battery when the power supply module receives at least one of the second trigger signal and the charging detection signal.

15. The startup power management system according to claim 13, characterized in that: The driver is the high-side driver, and the peripheral circuit also includes a charge pump electrically connected to the startup power management chip and the high-side driver, and the charge pump is used to control the start-up status of the high-side driver according to the startup power management chip.

16. A driving method for starting a power management system, characterized in that: The startup power management system as claimed in any one of claims 1 to 15 comprises: The first control module and the second control module are controlled by the power supply module to operate according to the same system state conversion rule.

17. The driving method for starting a power management system according to claim 16, characterized in that: The power supply module includes a voltage output unit, a first voltage regulating unit electrically connected to the first control module, a second voltage regulating unit electrically connected to the second control module, and a voltage generating unit for generating an initial voltage, wherein the voltage output unit is used to generate the supply voltage according to the initial voltage, and the system state conversion rule includes a warehouse transportation mode; Wherein, the step of controlling the first control module and the second control module to work according to the same system state transition rule through the power supply module includes: In response to the warehouse operation mode startup instruction, the voltage generating unit is controlled to stop transmitting the initial voltage to the voltage output unit, so that the voltage output unit stops outputting the supply voltage to the first voltage regulating unit and the second voltage regulating unit, so that the startup power management system enters the warehouse operation mode.

18. The driving method for starting a power management system according to claim 17, characterized in that: The power supply module further includes a third voltage regulating unit electrically connected to the peripheral circuit in the startup power management system, and the system state transition rule further includes a normal mode; Wherein, the step of controlling the first control module and the second control module to work according to the same system state transition rule through the power supply module includes: In response to at least one of the first trigger signal and the charging detection signal, the voltage generating unit transmits the initial voltage to the voltage output unit, and outputs the supply voltage to the first voltage regulating unit, the second voltage regulating unit and the third voltage regulating unit, so that the startup power management system switches from the warehouse operation mode to the normal mode.

19. The driving method for starting a power management system according to claim 17, characterized in that: The peripheral circuit includes an analog-to-digital conversion module for detecting the electrical signal of the startup power management chip, the power supply module also includes a fourth voltage adjustment unit electrically connected to the analog-to-digital conversion module, the voltage output unit is used to output the supply voltage to the fourth voltage adjustment unit, and the system state conversion rule includes a sleep mode; Wherein, the step of controlling the first control module and the second control module to work according to the same system state transition rule through the power supply module includes: In response to the sleep mode startup instruction, the voltage output unit stops transmitting the supply voltage to the fourth voltage regulating unit, causing the analog-to-digital conversion module to stop detecting the electrical signal of the startup power management system, thereby causing the startup power management system to enter the sleep mode.

20. A vehicle, characterized in that: Comprising a startup power management system as claimed in any one of claims 1 to 15.

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