Power supply system of domain control module and vehicle

Abstract

The invention discloses a power supply system of a domain control module and a vehicle. The power supply system of the domain control module comprises a plurality of loads, a plurality of power supply modules arranged in one-to-one correspondence with the loads and a control module. Each power supply module is electrically connected with each load and the control module; the control module is used for controlling the power supply signals provided by the power supply modules according to the current working condition. According to the technical scheme, the power supply modules in one-to-one correspondence with the loads are arranged in the power supply system of the domain control module, so that the power supply modules can be arranged at the positions close to the loads, the length of a connecting wire harness between the power supply modules and the loads is shortened, and the line transmission impedance is reduced; the transmission efficiency and the transmission reliability of the power supply signal are improved. The control module adjusts the power supply signal provided by each power supply module in real time according to the current working condition, so that each load is in a working mode matched with the current working condition under the action of the power supply signal, and the working reliability of the domain control module is improved.

Description

Technical Field

[0001] The present invention relates to the field of power supply technology, and in particular to a power supply system for a domain control module and a vehicle. Background Art

[0002] As intelligent connected vehicles generate massive amounts of information, the perception, decision-making, and control systems involved in driving are becoming increasingly complex, with increasing amounts of information interaction and control between various systems. Existing domain controllers on the market primarily utilize integrated power management chips or single power modules.

[0003] However, the output voltage of the integrated power management chip or a single power module is fixed, which makes it difficult to adapt to a variety of load chips. In addition, a single power management system cannot provide stable and reliable power supply, which brings risks to the use of the vehicle. The cost of the integrated power management chip is relatively high. Summary of the Invention

[0004] The present invention provides a power supply system and a vehicle for a domain control module, so that each load is in an operating mode matching the current working condition under the action of a power supply signal, thereby improving the working reliability of the domain control module.

[0005] In a first aspect, the present invention provides a power supply system for a domain control module, comprising: a plurality of loads, a plurality of power supply modules and a control module arranged in one-to-one correspondence with each of the loads;

[0006] Each of the power supply modules is electrically connected to each of the loads and the control module respectively;

[0007] The control module is used to control the power supply signal provided by each power supply module according to the current working conditions.

[0008] Optionally, the current operating condition includes a first operating condition and a second operating condition corresponding to each of the loads;

[0009] The control module determines, according to the first operating condition, that the power supply signal provided by the power supply module is a first power supply signal;

[0010] The control module determines, according to the second working condition, that the power supply signal provided by the power supply module is a second power supply signal;

[0011] The first power supply signal is greater than the second power supply signal.

[0012] Optionally, the control module includes:

[0013] A collection unit, configured to collect operating condition signals; the operating condition signals at least include a stop signal, a reverse signal, or a parking signal;

[0014] A processing unit is electrically connected with the collecting unit, and is configured to determine the current working condition according to the working condition signal.

[0015] Optionally, the control module further comprises:

[0016] A storage unit is electrically connected with the processing unit.

[0017] Optionally, the power supply system further comprises:

[0018] A fault detection module is electrically connected with each of the loads and the control module, and is configured to acquire working parameters of the loads and determine fault states of the loads according to the working parameters; and the control module is configured to control a power supply state of the power supply module according to the fault states.

[0019] Optionally, the power supply module comprises at least two power supply sources and a voltage regulating unit.

[0020] The voltage regulating unit is electrically connected with the power supply sources, and is configured to output a power supply signal provided by the power supply sources to the loads after adjustment.

[0021] The control module is configured to control the power supply signal output by the voltage regulating unit according to the current working condition.

[0022] Optionally, the voltage regulating unit comprises a low-voltage linear voltage regulator or a DC-DC converter.

[0023] Optionally, the power supply module comprises a first power supply source and a second power supply source.

[0024] The first power supply source has a power supply voltage U1, and the second power supply source has a power supply voltage U2.

[0025] |U1-U2| / U1≤2%.

[0026] Optionally, the power supply module further comprises a first transistor and a second transistor.

[0027] A first input end and a first control end of the first transistor are electrically connected with an output end of the first power supply source, and a first output end of the first transistor is electrically connected with the voltage regulating unit.

[0028] A second input end and a second control end of the second transistor are electrically connected with an output end of the second power supply source, and a second output end of the second transistor is electrically connected with the voltage regulating unit.

[0029] In a second aspect, the application provides a power supply system of a domain controller.

[0030] The technical solution provided by this invention, by providing power supply modules corresponding to each load within the power supply system of the domain control module, allows each power supply module to be located close to each load, shortening the length of the connecting wiring between the power supply module and the load, reducing line transmission impedance, and improving the transmission efficiency and reliability of the power supply signal. The control module adjusts the power supply signal provided by each power supply module in real time according to the current operating conditions, so that each load is in an operating mode that matches the current operating conditions under the influence of the power supply signal, thereby improving the operating reliability of the domain control module. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic structural diagram of a power supply system for a domain control module provided in an embodiment of the present invention;

[0032] Figure 2 A schematic structural diagram of a power supply system for another domain control module provided in an embodiment of the present invention;

[0033] Figure 3 A schematic structural diagram of a power supply system for a domain control module provided in another embodiment of the present invention;

[0034] Figure 4 A schematic structural diagram of a power supply system for a domain control module provided in another embodiment of the present invention;

[0035] Figure 5 A schematic structural diagram of a power supply system for a domain control module provided in an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of the partial structure of a power supply module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0038] Figure 1 A schematic diagram of a power supply system for a domain control module according to an embodiment of the present invention is shown in FIG. Figure 1 As shown, the power supply system of the domain control module includes multiple loads 10, multiple power supply modules 20 and a control module 30 arranged one by one corresponding to each load 10; each power supply module 20 is electrically connected to each load 10 and the control module 30 respectively; the control module 30 is used to control the power supply signal provided by each power supply module 20 according to the current working conditions.

[0039] Among them, the domain control module includes a cockpit domain control module, a chassis domain control module or an automatic driving control module, etc. The load 10 includes an SOC chip, a camera chip, a ranging chip or a peripheral circuit chip, etc. The number of loads 10 can be set according to actual needs. For example, the domain control module includes n loads 10, namely load 11, load 12,..., load 1n, n≥1. The power supply module 20 includes a power supply, and the power supply signals provided by each power supply module 20 can be the same or different. The current working conditions include parking conditions, reversing conditions or intelligent driving conditions, etc., which can be set according to actual needs and are not specifically limited here.

[0040] Specifically, a separate power supply module 20 is provided for each load 10 to improve the power supply reliability of the load 10. The power supply module 20 can be provided close to the load 10 to shorten the length of the wiring harness connecting the power supply module 20 and the load 10, reduce the line transmission impedance, and improve the efficiency of electrical signal transmission. The control module 20 internally stores a graph or correspondence table of working conditions and electrical signals, and can provide the electrical signal corresponding to the current working condition as a control signal to the power supply module 20, so that the power supply module outputs a power supply signal corresponding to the control signal under the action of the control signal, so that the load 10 can be in a working mode that matches the current working condition under the action of the power supply signal, meet the different power supply requirements of the domain control module, and improve power supply reliability.

[0041] For example, the current working condition is the reversing condition, and the load 10 includes a side camera chip and a rear camera chip. The reversing condition requires that the display image returned by the side camera chip or the rear camera chip has a higher clarity. Therefore, at this time, the power supply signal provided to the side camera chip and the rear camera chip is larger, so that the side camera chip and the rear camera chip have a higher working power, thereby improving the clarity of the image returned by the side camera chip and the rear camera chip and improving driving safety.

[0042] The technical solution of the present invention, by providing power supply modules corresponding to each load within the power supply system of the domain control module, allows each power supply module to be located close to each load, shortening the length of the connecting wiring between the power supply module and the load, reducing line transmission impedance, and improving the transmission efficiency and reliability of the power supply signal. The control module adjusts the power supply signal provided by each power supply module in real time according to the current operating conditions, so that each load is in an operating mode that matches the current operating conditions under the influence of the power supply signal, thereby improving the operating reliability of the domain control module.

[0043] Optionally, the current operating condition includes a first operating condition and a second operating condition corresponding to each load 10; the control module 30 determines that the power supply signal provided by the power supply module 20 is a first power supply signal V1 based on the first operating condition; and the control module 30 determines that the power supply signal provided by the power supply module 20 is a second power supply signal V2 based on the second operating condition. The first power supply signal V1 is greater than the second power supply signal V2.

[0044] Among them, the first working condition includes a reversing working condition, and the second working condition includes a parking working condition. They can be set according to actual needs and are not specifically limited here.

[0045] Specifically, the first working condition requires that the load 10 be at a higher working power to provide a clearer image or more accurate data, so the first power supply signal V1 provided by the power supply module 20 needs to be larger. The second working condition requires that the load 10 be at a lower working power to enable the load 10 to provide a clear image or rough data, so the second power supply signal V2 provided by the power supply module 20 needs to be smaller. In this way, the control module 30 adjusts the supply voltage provided by the power supply module 20 to the load 10 in real time according to the current working condition, so that the load 10 can adapt to different working conditions, avoid the load 10 being at a higher working power in the first working condition, and then cause the load 10 to have higher power consumption, thereby improving energy utilization and reducing the power consumption of the power supply system.

[0046] In other optional embodiments, the current working condition further includes a third working condition, and the control module 30 determines that the power supply signal provided by the power supply module 20 is a third power supply signal V3 according to the third working condition; V1>V2≥V3.

[0047] Among them, the third working condition includes a shutdown working condition, etc., which can be set according to actual needs.

[0048] Specifically, the third operating condition requires the load 10 to operate at a lower power level or to stop operating to reduce the power consumption of the load 10. Therefore, the third power supply signal V3 provided by the power supply module 20 needs to be smaller. For example, when the load 10 is a camera chip and the current operating condition is the shutdown condition, the control module 30 controls the power supply module 20 to provide the third power supply signal V3 to the camera chip to be consistent with the second power supply signal V2, so that the camera chip remains in operation under the shutdown condition, allowing the driver to obtain images at all times and improving vehicle safety. When the load 10 is a ranging chip and the current operating condition is the shutdown condition, the control module 30 controls the power supply module 20 to provide the third power supply signal V3 to the ranging chip to be smaller than the second power supply signal V2, wherein the third power supply signal V3 can be 0V. The ranging chip stops operating under the action of the third power supply signal, thereby reducing the power consumption of the ranging chip under the shutdown condition and improving the energy utilization of the power supply system.

[0049] For example, the first working condition requires the current flowing through the load 10 to be greater than 8A, and the voltage of the control power supply signal is 1.2V. The second working condition requires the current flowing through the load 10 to be less than 2A, and the voltage of the control power supply signal is 0.8V, so as to adjust the output power of the load 10 through the control power supply signal.

[0050] Optionally, Figure 2 Another structure schematic diagram of the power supply system of the domain control module provided by the embodiment of the present application is shown in FIG. 3. Figure 2 As shown in the figure, the control module 30 includes a collection unit 31, a processing unit 32 and a working condition evaluation unit 33. The collection unit 31 is used to collect working condition signals; the working condition signals at least include a shutdown signal, a reverse signal or a parking signal. The processing unit 32 is electrically connected with the collection unit 31, and the processing unit 32 is used to determine the current working condition according to the working condition signals.

[0051] Among them, the collection unit 31 includes structures such as collection circuits, the processing unit 32 includes structures such as analog-to-digital converters, and the working condition evaluation unit 33 includes processors for performing logical processing, etc., which can be set according to actual needs, and are not limited here.

[0052] Specifically, the collection unit 31 can obtain the working condition signals issued by the vehicle master control module. When the working condition signal is a shutdown signal, it indicates that the vehicle will be in a shutdown state, and at this time the processing unit 32 can determine that the current working condition is a shutdown working condition. When the working condition signal is a reverse signal, it indicates that the vehicle will be in a reverse state, and at this time the processing unit 32 can determine that the current working condition is a reverse working condition. When the working condition signal is a parking signal, it indicates that the vehicle will be in a parking state, and at this time the processing unit 32 can determine that the current working condition is a parking working condition. In this way, the current working condition is determined through the collection unit 31 and the processing unit 32, so that the control module 30 adjusts the power supply signal of the load according to the current working condition, improves the matching degree of the load and the current working condition, and improves the driving experience and the vehicle experience of the driver.

[0053] Optionally, Figure 3 Another structure schematic diagram of the power supply system of the domain control module provided by the embodiment of the present application is shown in FIG. 3. Figure 3 As shown in the figure, the control module 30 further includes a storage unit 33, and the storage unit 33 is electrically connected with the processing unit 32.

[0054] Specifically, the storage unit 22 is set to record the current working condition corresponding to each time determined by the processing unit 32, so as to facilitate subsequent tracking and viewing. The data stored in the storage unit 22 can also be used as reference data for the current working condition evaluation of the processing unit 32, so as to improve the determination accuracy of the current working condition,

[0055] Optionally, Figure 4 Another structure schematic diagram of the power supply system of the domain control module provided by the embodiment of the present application is shown in FIG. 3. Figure 4 As shown, the power supply system also includes a fault detection module 40, which is electrically connected to each load 10 and the control module 30; the fault detection module 40 is used to obtain the working parameters of the load 10 and determine the fault state of the load 10 based on the working parameters; the control module 30 is used to control the power supply state of the power supply module according to the fault state.

[0056] Among them, the fault detection module 40 includes a fault detection circuit or a fault detection device, etc., which can be set according to actual needs and are not specifically limited here. The working parameters include voltage signals, voltage signals or temperature signals, etc., and the fault state includes at least one of an overcurrent state, an overvoltage state, an overtemperature state, etc. The fault detection module 40 includes a sampling unit, an analog-to-digital conversion unit and a fault assessment unit. The sampling unit includes at least one of a current sampling unit, a voltage acquisition unit or a temperature acquisition unit. The analog-to-digital conversion unit is electrically connected to the sampling unit and the fault assessment unit respectively. The analog-to-digital conversion unit converts the analog signal collected by the sampling unit into a digital signal and transmits it to the fault assessment unit so that the fault assessment unit compares the data signal with the preset signal to determine the current fault state.

[0057] Specifically, by setting a fault detection module 40 electrically connected to the load 10, the fault detection module 40 can obtain the fault status of the load 10 in real time. When the control module 30 obtains that the load 10 is in a fault state, it controls the power supply module 20 to stop supplying power to the load 10, or controls the power supply module 20 to reduce the frequency of supplying power to the load 10, etc., to avoid the load 10 being in a fault state for a long time and then being damaged, thereby extending the service life of the load 10 and improving the working safety of the power supply system.

[0058] Optional, Figure 5 A schematic diagram of a power supply system for a domain control module according to an embodiment of the present invention is shown in FIG. Figure 5 As shown, the power supply module 20 includes at least two power supplies 50 and a voltage regulating unit 70; the voltage regulating unit 60 is electrically connected to the power supply 50 and is used to adjust the power signal provided by the power supply 50 and output it to the load 10. The control module 30 is used to control the power supply signal output by the voltage regulating unit 60 according to the current working conditions.

[0059] The power supply 50 includes power supply equipment such as batteries, and can be configured according to actual needs, which is not specifically limited here.

[0060] Specifically, the power signal provided by the power supply 50 is transmitted to the voltage regulating unit 60. The voltage regulating unit 60 can boost or reduce the voltage of the power signal according to the control signal of the control module 30 and output it stably to the load 10 so that the load 10 adapts to the current working conditions.

[0061] It should be noted that the voltage regulating unit 60 may include a circuit structure composed of electrical components such as resistors and capacitors. In an optional embodiment, the voltage regulating unit 60 includes a low-voltage linear regulator or a DC-DC converter.

[0062] Specifically, when the current flowing through the load 10 is relatively low, the voltage regulating unit 60 may include a low-voltage linear regulator to reduce noise and ripple in the power supply signal and improve the accuracy of the power supply signal. When the current flowing through the load 10 is relatively high, the voltage regulating unit 60 may include a DC-DC converter to improve the transmission efficiency of the power supply signal and ensure the high power requirements of the load 10.

[0063] Optional, continue to refer to Figure 5 The power supply module 20 includes a first power supply 51 and a second power supply 52 ; the supply voltage of the first power supply 51 is U1 , and the supply voltage of the second power supply 52 is U2 .

[0064] Among them, |U1-U2| / U1≤2%.

[0065] Specifically, the supply voltage U1 of the first power supply 51 and the supply voltage U2 of the second power supply 52 satisfy |U1-U2| / U1≤2%, so that the difference between the supply voltages provided by the first power supply 51 and the second power supply 52 is small. When one of the power supplies fails, the other power supply is used to supply power, thereby improving the power supply reliability of the load 10.

[0066] Optional, Figure 6 A schematic diagram of a partial structure of a power supply module provided in an embodiment of the present invention is shown in FIG. Figure 6 As shown, the power supply module 20 also includes a first transistor T1 and a second transistor T2; the first input terminal D1 and the first control terminal G1 of the first transistor T1 are respectively electrically connected to the output terminal of the first power supply 51, and the first output terminal S1 of the first transistor T1 is electrically connected to the voltage regulating unit 60; the second input terminal D2 and the second control terminal G2 of the second transistor T2 are respectively electrically connected to the output terminal of the second power supply 52, and the second output terminal S2 of the second transistor T2 is electrically connected to the voltage regulating unit 60.

[0067] The first transistor T1 and the second transistor T2 include N-type transistors and the like, and can be configured according to actual needs.

[0068] Specifically, the first output terminal S1 is electrically connected to the second output terminal S2. When the supply voltages provided by the first power supply 51 and the second power supply 52 can both turn on the first transistor T1 and the second transistor T2, and the supply voltage provided by the first power supply 51 is greater than the supply voltage provided by the second power supply 52, since the first transistor T1 and the second transistor T2 are both in the on state, the first input terminal D1 can provide the supply voltage provided by the first power supply 51 to the first output terminal S1, and the second input terminal D2 can provide the supply voltage provided by the second power supply 52 to the second output terminal S2. The first output terminal S1 will clamp the second output terminal S2 to the higher supply voltage provided by the first power supply 51, causing the second transistor T2 to be in the off state, so that the first power supply 51 with the higher supply voltage output supplies power to the load 10, thereby improving the power supply reliability of the load 10.

[0069] It is understandable that the power supply may be affected by environmental conditions, causing fluctuations in the supply voltages provided by the first power supply 51 and the second power supply 52, which in turn may result in differences between the two. The switching time from the second power supply 52 to the first power supply 51 is less than 10ms, providing a relatively fast switching speed and ensuring power supply continuity.

[0070] It should be noted that the power supply system also includes heat dissipation holes. The load 10 or power supply module 20 with higher output power can be set near the heat dissipation holes to improve the heat dissipation efficiency of the load 10 or power supply module 20 and extend its service life.

[0071] Based on the same inventive concept, the present invention further provides a vehicle comprising a power supply system for a domain controller according to any embodiment of the present invention. Therefore, the vehicle possesses the technical features of the power supply system for a domain controller according to any embodiment of the present invention and can achieve the beneficial effects of the power supply system for a domain controller according to any embodiment of the present invention. For similarities, reference can be made to the above description of the power supply system for a domain controller according to any embodiment of the present invention and will not be repeated here.

[0072] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A power supply system for a domain control module, characterized in that: include: A plurality of loads, a plurality of power supply modules and a control module arranged in one-to-one correspondence with each of the loads; Each of the power supply modules is electrically connected to each of the loads and the control module respectively; The control module is used to control the power supply signal provided by each power supply module according to the current working conditions.

2. The power supply system according to claim 1, characterized in that: The current operating condition includes a first operating condition and a second operating condition corresponding to each of the loads; The control module determines, according to the first operating condition, that the power supply signal provided by the power supply module is a first power supply signal; The control module determines, according to the second working condition, that the power supply signal provided by the power supply module is a second power supply signal; The first power supply signal is greater than the second power supply signal.

3. The power supply system according to claim 1, wherein: The control module includes: A collection unit, configured to collect operating condition signals; the operating condition signals at least include a stop signal, a reverse signal, or a parking signal; A processing unit is electrically connected to the acquisition unit; the processing unit is used to determine the current working condition based on the working condition signal.

4. The power supply system according to claim 3, characterized in that: The control module further includes: The storage unit is electrically connected to the processing unit.

5. The power supply system according to claim 1, wherein: Also includes: a fault detection module, electrically connected to each of the loads and the control module; The fault detection module is used to obtain the operating parameters of the load and determine the fault state of the load according to the operating parameters; the control module is used to control the power supply state of the power supply module according to the fault state.

6. The power supply system according to claim 1, characterized in that: The power supply module includes at least two power supplies and a voltage regulating unit; The voltage regulating unit is electrically connected to the power supply, and is used to adjust the power signal provided by the power supply and output it to the load; The control module is used to control the power supply signal output by the voltage regulating unit according to the current working condition.

7. The power supply system according to claim 6, characterized in that: The voltage regulating unit includes: a low voltage linear regulator or a DC-DC converter.

8. The power supply system according to claim 6, characterized in that: The power supply module includes a first power supply and a second power supply; The supply voltage of the first power supply is U1, and the supply voltage of the second power supply is U2; Among them, |U1-U2| / U1≤2%.

9. The power supply system according to claim 8, characterized in that: The power supply module further includes: a first transistor and a second transistor; The first input terminal and the first control terminal of the first transistor are electrically connected to the output terminal of the first power supply respectively, and the first output terminal of the first transistor is electrically connected to the voltage regulating unit; The second input terminal and the second control terminal of the second transistor are electrically connected to the output terminal of the second power supply, respectively, and the second output terminal of the second transistor is electrically connected to the voltage regulating unit.

10. A vehicle, characterized in that: A power supply system comprising a domain controller as claimed in any one of claims 1 to 9.

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