Automatic parking power supply system and vehicle

Abstract

The utility model is suitable for the technical field of vehicles, and provides an automatic parking power supply system and a vehicle. The automatic parking power supply system comprises a first power supply module, a second power supply module, a first braking module, a second braking module, a first protection module, a second protection module and a parking control module, and the first protection module is electrically connected with the first power supply module, the first braking module, the second power supply module, the second protection module and the parking control module. And the second brake module is electrically connected with the second protection module. According to the automatic parking power supply system provided by the embodiment of the invention, when the power supply circuit breaks down, the power supply loop can be rapidly switched, and it is ensured that one of the first braking module and the second braking module can always work normally, so that normal braking of a vehicle is achieved, and therefore normal work of the automatic parking system is ensured.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and in particular, relates to an automatic parking power supply system and a vehicle. Background Art

[0002] The automatic valet parking system is an important sub-scenario of intelligent driving technology, and its goal is to realize the autonomous parking function of the vehicle when the driver is not present. However, the automatic valet parking system mainly relies on the low-voltage power supply system. When the low-voltage power supply system fails, the automatic parking system cannot work properly, and the vehicle loses control, causing safety hazards. Utility Model Content

[0003] The embodiments of the present application provide an automatic parking power supply system and a vehicle, which can solve the problem that the automatic parking system cannot work normally when a low-voltage power supply system fails.

[0004] In a first aspect, an embodiment of the present application provides an automatic parking power supply system, including a first power supply module, a second power supply module, a first braking module, a second braking module, a first protection module, a second protection module and a parking control module, wherein the first protection module is electrically connected to the first power supply module, the first braking module, the second power supply module, the second protection module and the parking control module respectively, and the second braking module is electrically connected to the second protection module;

[0005] The first protection module is used to disconnect when the first power supply module fails. After the first protection module is disconnected, the second power supply module is used to supply power to the second braking module and the parking control module; the second protection module is used to disconnect when the line between the second braking module and the second power supply module fails. After the second protection module is disconnected, the first power supply module is used to supply power to the first braking module and the parking control module; the first braking module is used to brake according to a first instruction output by the parking control module; the second braking module is used to brake according to a second instruction output by the parking control module when the first braking module fails.

[0006] In a possible implementation of the first aspect, the automatic parking power supply system further includes a monitoring module, and a first end of the monitoring module and a second end of the monitoring module are electrically connected to the second power supply module respectively;

[0007] The monitoring module is used to monitor the electrical parameters of the second power supply module and transmit the electrical parameters of the second power supply module to the parking control module.

[0008] In a possible implementation manner of the first aspect, the first protection module includes a first fuse box, and the first fuse box is electrically connected to the first power supply module, the first brake module, the second power supply module, the second protection module, and the parking control module, respectively.

[0009] In a possible implementation manner of the first aspect, the second protection module includes a second fuse box, and the second fuse box is electrically connected to the second braking module, the parking control module, the second power supply module, the first braking module, and the first protection module respectively.

[0010] In a possible implementation manner of the first aspect, the first braking module is further configured to automatically brake when the first instruction output by the parking control module or the interactive signal output by the second braking module is not detected within a preset time.

[0011] In a possible implementation manner of the first aspect, the second braking module is further configured to automatically brake when the second instruction output by the parking control module is not detected within a preset time.

[0012] In a possible implementation manner of the first aspect, the first power supply module includes a voltage conversion unit, an input end of the voltage conversion unit is used to be electrically connected to a power supply, and an output end of the voltage conversion unit is electrically connected to the first protection module;

[0013] The voltage conversion unit is used to convert the voltage provided by the power supply.

[0014] In a possible implementation manner of the first aspect, the second power supply module includes a battery, a positive electrode of the battery is electrically connected to the first end of the monitoring module, and a negative electrode of the battery is electrically connected to the second end of the monitoring module.

[0015] In a possible implementation manner of the first aspect, the automatic parking power supply system further includes an electrical load, and the electrical load is electrically connected to the second power supply module.

[0016] In a second aspect, an embodiment of the present application provides a vehicle, comprising the automatic parking power supply system described in any one of the first aspects.

[0017] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0018] An embodiment of the present application provides an automatic parking power supply system, including a first power supply module, a second power supply module, a first braking module, a second braking module, a first protection module, a second protection module and a parking control module, the first protection module is electrically connected to the first power supply module, the first braking module, the second power supply module, the second protection module and the parking control module, respectively, and the second braking module is electrically connected to the second protection module.

[0019] The first protection module is used to disconnect when the first power supply module fails. After the first protection module is disconnected, the second power supply module is used to supply power to the second brake module and the parking control module. After the first protection module is disconnected, it means that the first brake module cannot work normally. At this time, the second brake module brakes according to the second instruction output by the parking control module to ensure the normal operation of the automatic parking system.

[0020] The second protection module is used to disconnect when a fault occurs in the line between the second brake module and the second power supply module. After the second protection module is disconnected, the first power supply module is used to supply power to the first brake module and the parking control module. After the second protection module is disconnected, it means that the second brake module cannot work normally. At this time, the first brake module brakes according to the first instruction output by the parking control module to ensure the normal operation of the automatic parking system.

[0021] From the above, it can be seen that the automatic parking power supply system provided in the embodiment of the present application can quickly switch the power supply circuit when a power supply line fails, ensuring that one of the first braking module and the second braking module can always work normally, so as to achieve normal braking of the vehicle, thereby ensuring the normal operation of the automatic parking system.

[0022] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is the principle block diagram of the low voltage power supply system;

[0025] Figure 2 is a principle block diagram of an automatic parking power supply system provided by an embodiment of the present application;

[0026] Figure 3 is a principle block diagram of an automatic parking power supply system provided by another embodiment of the present application;

[0027] Figure 4 is a principle block diagram of an automatic parking power supply system provided by another embodiment of the present application;

[0028] Figure 5 is a circuit connection diagram of an automatic parking power supply system provided by an embodiment of the present application;

[0029] Figure 6 is a flowchart of an automatic parking method provided by an embodiment of the present application;

[0030] Figure 7 is a flowchart of an automatic parking method provided by another embodiment of the present application;

[0031] Figure 8 It is a principle block diagram of an automatic parking device provided in one embodiment of the present application.

[0032] In the figure: 10, first power supply module; 11, voltage conversion unit; 20, second power supply module; 30, first braking module; 40, second braking module; 50, first protection module; 60, second protection module; 70, parking control module; 80, monitoring module; 90, power load; 100, acquisition module; 200, first control module. DETAILED DESCRIPTION

[0033] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0034] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0035] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0036] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0037] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0038] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0039] With the application of intelligent driving scenarios in the global market, major vehicle manufacturers are developing vehicles with autonomous driving functions. Automatic valet parking is one of the sub-scenarios, mainly targeting specific parking environments and limited vehicle speeds of no more than 15km / h. When the vehicle is moving and detects obstacles / pedestrians in the direction of travel, the vehicle will actively slow down and stop to avoid collision risks; even if the vehicle fails, it can still park the vehicle.

[0040] However, the automatic valet parking system mainly relies on the low-voltage power supply system. Figure 1 The schematic diagram of the low-voltage power supply system is shown. In the low-voltage power supply system, the first braking system and the second braking system share a protection device. When the protection device is disconnected, the first braking system and the second braking system cannot work normally, resulting in the automatic parking system not being able to work normally, posing a safety hazard.

[0041] In view of the above problems, the present application provides an automatic parking power supply system, such as Figure 2As shown, the automatic parking power supply system includes a first power supply module 10, a second power supply module 20, a first brake module 30, a second brake module 40, a first protection module 50, a second protection module 60 and a parking control module 70. The first protection module 50 is electrically connected to the first power supply module 10, the first brake module 30, the second power supply module 20, the second protection module 60 and the parking control module 70, respectively, and the second brake module 40 is electrically connected to the second protection module 60.

[0042] Specifically, the first protection module 50 is used to disconnect when the first power supply module 10 fails. After the first protection module 50 is disconnected, the second power supply module 20 is used to supply power to the second brake module 40 and the parking control module 70. After the first protection module 50 is disconnected, it means that the first brake module 30 cannot work normally. At this time, the second brake module 40 brakes according to the second instruction output by the parking control module 70 to ensure the normal operation of the automatic parking system.

[0043] The second protection module 60 is used to disconnect when a fault occurs in the line between the second brake module 40 and the second power supply module 20. After the second protection module 60 is disconnected, the first power supply module 10 is used to supply power to the first brake module 30 and the parking control module 70. After the second protection module 60 is disconnected, it means that the second brake module 40 cannot work normally. At this time, the first brake module 30 brakes according to the first instruction output by the parking control module 70 to ensure the normal operation of the automatic parking system.

[0044] From the above, it can be seen that the automatic parking power supply system provided in the embodiment of the present application can quickly switch the power supply circuit when a power supply line fails, ensuring that at least one of the first brake module 30 and the second brake module 40 can work normally, so as to achieve normal braking of the vehicle, thereby ensuring the normal operation of the automatic parking system.

[0045] It should be noted that the first brake module 30 is a main brake system, including a brake system sensor, a controller and an actuator. In the automatic parking mode, the vehicle brakes according to the first command output by the parking control module 70; or, in the automatic parking mode, the vehicle brakes automatically when the first command output by the parking control module 70 or the interactive signal output by the second brake module 40 is not detected within a preset time.

[0046] The second brake module 40 is an auxiliary brake system. In the automatic parking mode, when the first brake module 30 fails, the vehicle brakes according to the second command output by the parking control module 70; or, in the automatic parking mode, when the second command output by the parking control module 70 is not detected within a preset time, the vehicle brakes automatically. The preset time can be set according to actual conditions, and this application does not limit this.

[0047] It should be noted that the parking control module 70, as the controller of the automatic parking system, collects sensor signals and interacts with other controllers of the vehicle to implement logical judgment of the automatic parking function and realize automatic driving control of the vehicle in specific scenarios. When a fault that affects the realization of the automatic parking function is detected, instructions are output to the first brake module 30 and the second brake module 40, so that the first brake module 30 and the second brake module 40 brake according to the instructions.

[0048] In the automatic parking power supply system provided in the embodiment of the present application, in order to meet the requirements of the automatic parking function, such as Figure 3 As shown, the automatic parking power supply system provided in the embodiment of the present application further includes a monitoring module 80 , and a first end of the monitoring module 80 and a second end of the monitoring module 80 are electrically connected to the second power supply module 20 , respectively.

[0049] Specifically, the monitoring module 80 is used to monitor the electrical parameters of the second power supply module 20 and transmit the electrical parameters of the second power supply module 20 to the parking control module 70, wherein the electrical parameters include the voltage value, health status and power of the second power supply module 20. The parking control module 70 can determine whether the automatic parking system enters the automatic parking mode according to the power of the second power supply module 20, further ensuring the safety of the automatic parking function.

[0050] The automatic parking function logic judgment of the parking control module 70 includes:

[0051] Acquire the state of the first power supply module 10 and the power of the second power supply module 20;

[0052] If the state of the first power supply module 10 is in the working state, and the power of the second power supply module 20 is greater than or equal to the preset power, the automatic parking system is controlled to enter the automatic parking mode;

[0053] After entering the automatic parking mode, if the state of the first power supply module 10 is in the working state, the automatic parking mode continues to be executed, and a first instruction is output to the first braking module 30, where the first instruction is used to instruct the first braking module 30 to brake;

[0054] If the first power supply module 10 is in a non-operating state, a second instruction is output to the second braking module 40 , where the second instruction is used to instruct the second braking module 40 to brake.

[0055] As can be seen from the above, the parking control module 70 in the present application monitors the state of the first power supply module 10 and the power of the second power supply module 20, and provides a logical judgment of the automatic parking function, thereby better ensuring the realization of the automatic parking function. At the same time, the demand of the automatic parking function for the power supply system is met at a lower cost, a smaller quantity and a shorter development cycle.

[0056] Exemplarily, the first protection module 50 includes a first fuse box, which is electrically connected to the first power supply module 10, the first brake module 30, the second power supply module 20, the second protection module 60 and the parking control module 70. The first fuse box is used to cut off the circuit and prevent other modules from being damaged when the current in the circuit exceeds its rated value. The first fuse box can be a battery positive electrode fuse box, which is separate from the second protection module 60 and is not physically integrated.

[0057] Exemplarily, the second protection module 60 includes a second fuse box, which is electrically connected to the second brake module 40, the parking control module 70, the second power supply module 20, the first brake module 30 and the first protection module 50. The second fuse box is used to cut off the circuit and prevent other modules from being damaged when the current in the circuit exceeds its rated value. The second fuse box can be a cabin fuse box, which is separated from the first fuse box and is not physically integrated.

[0058] like Figure 5 As shown, the first power supply module 10 includes a voltage conversion unit 11 , an input end of the voltage conversion unit 11 is used to be electrically connected to a power source, and an output end of the voltage conversion unit 11 is electrically connected to the first protection module 50 .

[0059] Specifically, the voltage conversion unit 11 is a high-low voltage conversion unit of the vehicle, which is used to convert the voltage provided by the power supply after the vehicle is started, and convert the voltage provided by the power supply into a suitable power supply voltage to supply power to the first brake module 30, the second power supply module 20, the parking control module 70 and the second brake module 40. The power supply is a high voltage power supply.

[0060] like Figure 5 As shown, the second power supply module 20 includes a battery, the positive electrode of the battery is electrically connected to the first end of the monitoring module 80 , and the negative electrode of the battery is electrically connected to the second end of the monitoring module 80 .

[0061] Specifically, when the vehicle is not started, the battery supplies power to the entire vehicle load connected to it, and when the vehicle engine is idling or stopped, it can guarantee part or all of the power required by important loads for a certain period of time. The battery is a lead-acid battery or a lithium battery.

[0062] like Figure 4 As shown, the automatic parking power supply system also includes an electrical load 90, which is electrically connected to the second power supply module 20. The electrical load 90 is an electrical load connected to the normal operation of the vehicle, including vehicle electrical components such as a power system, a steering system, a lighting system, and an entertainment system.

[0063] The embodiment of the present application also provides an automatic parking method, based on the automatic parking power supply system described above, such as Figure 6 As shown, the automatic parking method includes steps S601 to S602.

[0064] S601: A parking control module obtains a state of a first power supply module and a power level of a second power supply module.

[0065] Specifically, the parking control module obtains the state of the first power supply module. The monitoring module is used to monitor the power of the second power supply module and transmit the power of the second power supply module to the parking control module. The parking control module determines whether the automatic parking system enters the automatic parking mode according to the state of the first power supply module and the power of the second power supply module.

[0066] S602: If the state of the first power supply module is in the working state, and the power of the second power supply module is greater than or equal to the preset power, the parking control module controls the automatic parking system to enter the automatic parking mode.

[0067] Specifically, when the first power supply module works normally and the power of the second power supply module is greater than or equal to the preset power, it means that the automatic parking power supply system can satisfy the automatic parking system to enter the automatic parking mode, and the parking control module controls the automatic parking system to enter the automatic parking mode. When the state of the first power supply module is non-working, the parking control module does not control the automatic parking system to enter the automatic parking mode. When the first power supply module works normally, but the power of the second power supply module is less than the preset power, the parking control module does not control the automatic parking system to enter the automatic parking mode.

[0068] As can be seen from the above, the method provided in the embodiment of the present application provides a logical judgment of the automatic parking function by monitoring the state of the first power supply module and the power of the second power supply module, thereby better ensuring the realization of the automatic parking function. At the same time, the demand of the automatic parking function for the power supply system is met at a lower cost, a smaller quantity and a shorter development cycle.

[0069] like Figure 7 As shown, the automatic parking method also includes step S603 to step S604.

[0070] S603: After entering the automatic parking mode, if the first power supply module is in a working state, the parking control module outputs a first instruction to the first brake module, where the first instruction is used to instruct the first brake module to brake.

[0071] Specifically, after the automatic parking system enters the automatic parking mode, the parking control module will still monitor the state of the first power supply module, and determine whether the automatic parking system continues to execute the automatic parking mode according to the state of the first power supply module. When the first power supply module works normally, the parking control module controls the automatic parking system to continue to execute the automatic parking mode, and outputs a first instruction to the first brake module, so that the first brake module brakes according to the first instruction.

[0072] S604: If the first power supply module is in a non-operating state, the parking control module outputs a second instruction to the second braking module, where the second instruction is used to instruct the second braking module to brake.

[0073] Specifically, after the automatic parking system enters the automatic parking mode, the parking control module will still monitor the state of the first power supply module, and determine whether the automatic parking system continues to execute the automatic parking mode according to the state of the first power supply module. When the state of the first power supply module is in a non-working state, the parking control module outputs a second instruction to the second brake module, so that the second brake module brakes according to the second instruction.

[0074] From the above, it can be seen that the method provided in the embodiment of the present application will still monitor the status of the first power supply module after the automatic parking system enters the automatic parking mode, and determine whether the automatic parking system continues to execute the automatic parking mode according to the status of the first power supply module, thereby better ensuring the realization of the automatic parking function.

[0075] The present application also provides an automatic parking device, such as Figure 8 As shown, the automatic parking device includes:

[0076] An acquisition module 100 is used to acquire the state of the first power supply module and the power of the second power supply module;

[0077] The first control module 200 is used to control the automatic parking system to enter the automatic parking mode if the state of the first power supply module is in the working state and the power of the second power supply module is greater than or equal to the preset power.

[0078] In one embodiment of the present application, the automatic parking device further includes:

[0079] A first output module, configured to output a first instruction to a first braking module after entering an automatic parking mode if the first power supply module is in a working state, wherein the first instruction is used to instruct the first braking module to brake;

[0080] The second output module is used to output a second instruction to the second braking module if the state of the first power supply module is a non-working state, and the second instruction is used to instruct the second braking module to brake.

[0081] The automatic parking device provided in the embodiment of the present application monitors the state of the first power supply module and the power of the second power supply module, provides a logical judgment of the automatic parking function, and better ensures the realization of the automatic parking function. At the same time, it meets the demand of the automatic parking function for the power supply system with lower cost, smaller quantity and shorter development cycle.

[0082] The embodiment of the present application also provides a vehicle, including the automatic parking power supply system described above. When a power supply line fails, the vehicle provided by the embodiment of the present application can quickly switch the power supply circuit, and can always ensure that a brake module can work normally to achieve the braking function of the vehicle, thereby ensuring the normal operation of the automatic parking system. For the specific working principle, please refer to the description of the working principle of the automatic parking power supply system described above, which will not be repeated here.

[0083] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An automatic parking power supply system, characterized in that: It includes a first power supply module, a second power supply module, a first brake module, a second brake module, a first protection module, a second protection module and a parking control module, wherein the first protection module is electrically connected to the first power supply module, the first brake module, the second power supply module, the second protection module and the parking control module respectively, and the second brake module is electrically connected to the second protection module; The first protection module is used to disconnect when the first power supply module fails. After the first protection module is disconnected, the second power supply module is used to supply power to the second brake module and the parking control module; The second protection module is used to disconnect when a fault occurs in the line between the second braking module and the second power supply module. After the second protection module is disconnected, the first power supply module is used to supply power to the first braking module and the parking control module; the first braking module is used to brake according to a first instruction output by the parking control module; and the second braking module is used to brake according to a second instruction output by the parking control module when the first braking module fails.

2. The automatic parking power supply system according to claim 1, characterized in that: The automatic parking power supply system further includes a monitoring module, wherein a first end of the monitoring module and a second end of the monitoring module are electrically connected to the second power supply module respectively; The monitoring module is used to monitor the electrical parameters of the second power supply module and transmit the electrical parameters of the second power supply module to the parking control module.

3. The automatic parking power supply system according to claim 1 or 2, characterized in that: The first protection module includes a first fuse box, and the first fuse box is electrically connected to the first power supply module, the first brake module, the second power supply module, the second protection module and the parking control module respectively.

4. The automatic parking power supply system according to claim 1 or 2, characterized in that: The second protection module includes a second fuse box, and the second fuse box is electrically connected to the second braking module, the parking control module, the second power supply module, the first braking module and the first protection module respectively.

5. The automatic parking power supply system according to claim 1 or 2, characterized in that: The first braking module is further configured to automatically brake when the first instruction output by the parking control module or the interactive signal output by the second braking module is not detected within a preset time.

6. The automatic parking power supply system according to claim 1 or 2, characterized in that: The second braking module is further configured to automatically brake when the second instruction output by the parking control module is not detected within a preset time.

7. The automatic parking power supply system according to claim 1 or 2, characterized in that: The first power supply module includes a voltage conversion unit, the input end of the voltage conversion unit is used to be electrically connected to a power supply, and the output end of the voltage conversion unit is electrically connected to the first protection module; The voltage conversion unit is used to convert the voltage provided by the power supply.

8. The automatic parking power supply system according to claim 2, characterized in that: The second power supply module includes a battery, a positive electrode of the battery is electrically connected to a first end of the monitoring module, and a negative electrode of the battery is electrically connected to a second end of the monitoring module.

9. The automatic parking power supply system according to claim 1 or 2, characterized in that: The automatic parking power supply system further includes an electrical load, and the electrical load is electrically connected to the second power supply module.

10. A vehicle, characterized in that: The invention comprises the automatic parking power supply system as described in any one of claims 1 to 9.

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