Power supply system for automobile and automobile

Abstract

The present invention discloses a power supply system for an automobile and an automobile. The power supply system for an automobile includes a first power supply channel, a first on-board electrical appliance, a second on-board electrical appliance and a first current direction control module. The first on-board electrical appliance and the second on-board electrical appliance are electrically connected, and the first current direction control module is electrically connected to the first power supply channel and the first on-board electrical appliance, respectively. The power supply system for an automobile is used to select a first working mode and other working modes. The present invention can transform a difficult-to-detect fault of the first on-board electrical appliance (or the second on-board electrical appliance) into an easily detectable phenomenon by affecting the power supply to the second on-board electrical appliance (or the first on-board electrical appliance), so that the fault of the on-board electrical appliance can be discovered and eliminated in time, thereby ensuring the safety of the automobile. The present invention is widely used in the field of automobile technology.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, in particular to a power supply system for an automobile and the automobile. Background Art

[0002] A car is equipped with multiple onboard electrical appliances, each with different impacts if its power supply is lost. Consequently, each appliance has varying degrees of importance. For example, onboard electrical appliances such as the brake system's electronic control unit and airbag controller are crucial for the operation of the car's brakes and airbags. A power loss to these appliances would impact traffic safety. On the other hand, onboard electrical appliances such as the display and audio system provide audio and video entertainment. A power loss to these appliances generally only degrades the driving experience but does not impact traffic safety. Therefore, a power loss to these appliances is more severe than a power loss to the display and audio system, making them more critical than their counterparts.

[0003] The current power supply technology for automotive electrical appliances is not designed for critical and important electrical appliances. As a result, when more important electrical appliances and relatively unimportant electrical appliances face the same risk of power supply system failure, the risks faced by more important electrical appliances are usually difficult to detect and the impact is greater. Therefore, the risks faced by more important electrical appliances are prone to accumulation and outbreak, posing a threat to the safe use of the car. Summary of the Invention

[0004] In view of the technical problems that the current power supply technology for automotive electrical appliances lacks optimization, which makes the risks faced by more important automotive electrical appliances easily accumulate and explode, posing a threat to the safe use of the car, the purpose of the present invention is to provide a power supply system and a car for a car.

[0005] In one aspect, an embodiment of the present invention includes a power supply system for an automobile, the power supply system for an automobile including:

[0006] a first power supply channel;

[0007] A first on-vehicle electrical appliance and a second on-vehicle electrical appliance; the first on-vehicle electrical appliance and the second on-vehicle electrical appliance are electrically connected;

[0008] a first current direction control module; the first current direction control module is electrically connected to the first power supply channel and the first vehicle-mounted electrical appliance respectively;

[0009] The power supply system for a vehicle is configured to select a first operating mode, wherein the first operating mode includes:

[0010] The first current direction control module obtains first electric energy from the first power supply channel and transmits the first electric energy to the first on-board electrical appliance;

[0011] The first on-board electrical appliance obtains second electrical energy from the first electrical energy for its own use, and transmits third electrical energy to the second on-board electrical appliance; the sum of the second electrical energy and the third electrical energy is the first electrical energy;

[0012] The second vehicle-mounted electrical appliance uses the third electrical energy for its own use.

[0013] Furthermore, the power supply system for a vehicle further comprises:

[0014] A second power supply channel;

[0015] A second current direction control module; the second current direction control module is electrically connected to the second power supply channel and the second vehicle-mounted electrical appliance respectively;

[0016] The power supply system for a vehicle is configured to select a second operating mode, wherein the second operating mode includes:

[0017] The first current direction control module obtains fourth electric energy from the first power supply channel and transmits the fourth electric energy to the first on-board electrical appliance;

[0018] The first on-board electrical appliance obtains second electrical energy from the fourth electrical energy for its own use and transmits fifth electrical energy to the second on-board electrical appliance; the sum of the second electrical energy and the fifth electrical energy is the fourth electrical energy;

[0019] The second current direction control module obtains sixth electric energy from the second power supply channel and transmits the sixth electric energy to the second on-board electrical appliance;

[0020] The second vehicle-mounted electrical appliance uses the fifth electric energy and the sixth electric energy for its own use; the sum of the fifth electric energy and the sixth electric energy is the third electric energy.

[0021] Furthermore, the power supply system for a vehicle is configured to select a third operating mode, wherein the third operating mode includes:

[0022] The first current direction control module obtains second electric energy from the first power supply channel and transmits the second electric energy to the first on-board electrical appliance;

[0023] The first on-vehicle electrical appliance receives the second electrical energy for its own use;

[0024] The second current direction control module obtains third electric energy from the second power supply channel and transmits the third electric energy to the second on-board electrical appliance;

[0025] The second vehicle-mounted electrical appliance receives the third electrical energy for its own use.

[0026] Furthermore, the power supply system for a vehicle is configured to select a fourth operating mode, and the fourth operating mode includes:

[0027] The second current direction control module obtains the first electric energy from the second power supply channel and transmits the first electric energy to the second on-board electrical appliance;

[0028] The second on-board electrical appliance obtains third electrical energy from the first electrical energy for its own use and transmits the second electrical energy to the first on-board electrical appliance; the sum of the second electrical energy and the third electrical energy is the first electrical energy;

[0029] The first vehicle-mounted electrical appliance uses the second electrical energy for its own use.

[0030] Furthermore, the power supply system for a vehicle is configured to select a fifth operating mode, wherein the fifth operating mode includes:

[0031] The second current direction control module obtains seventh electric energy from the second power supply channel and transmits the seventh electric energy to the second on-board electrical appliance;

[0032] The second on-board electrical appliance obtains third electrical energy from the seventh electrical energy for its own use and transmits the eighth electrical energy to the first on-board electrical appliance; the sum of the third electrical energy and the eighth electrical energy is the seventh electrical energy;

[0033] The first current direction control module obtains ninth electric energy from the first power supply channel and transmits the ninth electric energy to the first onboard electrical appliance;

[0034] The first vehicle-mounted electrical appliance uses the eighth electric energy and the ninth electric energy for its own use; the sum of the eighth electric energy and the ninth electric energy is the second electric energy.

[0035] Furthermore, the power supply system for a vehicle is used to select one working mode from among a first working mode, a second working mode, a third working mode, a fourth working mode and a fifth working mode to perform work.

[0036] Furthermore, the selecting one of the first working mode, the second working mode, the third working mode, the fourth working mode and the fifth working mode to perform the work includes:

[0037] Acquire first importance level information corresponding to the first vehicle-mounted electrical appliance, and second importance level information corresponding to the second vehicle-mounted electrical appliance;

[0038] When the first importance level information is greater than the second importance level information, selecting to execute the first working mode or the second working mode;

[0039] When the first importance level information is equal to the second importance level information, selecting to execute the third working mode;

[0040] When the first importance level information is less than the second importance level information, the fourth working mode or the fifth working mode is selected to be executed.

[0041] Further, the selecting to execute the first working mode or the second working mode includes:

[0042] When the difference between the first importance level information and the second importance level information is greater than a threshold, selecting to execute the first working mode;

[0043] When the difference between the first importance level information and the second importance level information is smaller than a threshold, the second working mode is selected to be executed.

[0044] Further, the selecting to execute the fourth operating mode or the fifth operating mode includes:

[0045] When the difference between the second importance level information and the first importance level information is greater than a threshold, selecting to execute the fourth working mode;

[0046] When the difference between the second importance level information and the first importance level information is smaller than a threshold, the fifth working mode is selected to be executed.

[0047] On the other hand, an embodiment of the present invention further includes a car, which includes the power supply system for a car in the embodiment.

[0048] The beneficial effect of the present invention is that the power supply system for an automobile in the embodiment can transform a difficult-to-detect fault of the first on-board electrical appliance (or the second on-board electrical appliance) into an easily detectable phenomenon by affecting the power supply to the second on-board electrical appliance (or the first on-board electrical appliance), so that the fault of the on-board electrical appliance can be discovered and eliminated in time, reducing the possibility of accumulation and outbreak of fault risks of the first on-board electrical appliance (or the second on-board electrical appliance), thereby ensuring the safety of automobile use. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic diagram of the basic structure of the power supply system for an automobile in an embodiment;

[0050] Figure 2 Schematic diagram of the principle of the first working mode in the embodiment;

[0051] Figure 3 An advanced structural diagram of a power supply system for an automobile in an embodiment;

[0052] Figure 4 Schematic diagram of the principle of the second working mode in the embodiment;

[0053] Figure 5 Schematic diagram of the principle of the third working mode in the embodiment;

[0054] Figure 6 Schematic diagram of the principle of the fourth working mode in the embodiment;

[0055] Figure 7 Schematic diagram of the principle of the fifth working mode in the embodiment. DETAILED DESCRIPTION

[0056] In this embodiment, a power supply system for an automobile is provided, which is optimized for multiple on-board electrical appliances of varying importance installed in the automobile, thereby solving technical problems such as the easy accumulation and outbreak of risks faced by more important on-board electrical appliances, posing a threat to the safe use of the automobile.

[0057] 1. Basic structure of the power supply system for automobiles

[0058] Reference Figure 1 The power supply system for an automobile includes a first power supply module, a first power supply channel, a first current direction control module, a first onboard electrical appliance, and a second onboard electrical appliance. Specifically, the first power supply module can be an onboard power source such as a generator, a power battery, or a storage battery. The first power supply channel is a medium capable of transmitting electrical energy, such as a conductor, and can be a positive wire (connected to the negative pole by grounding), a cable consisting of a positive wire and a negative wire, or a cable consisting of a positive wire, a negative wire, and a control wire.

[0059] In this embodiment, the electric energy output by the first power supply module can be transmitted to the first current direction control module through the first power supply channel, and the first current direction control module is electrically connected to the first power supply channel and the first on-board electrical appliance, respectively. The first current direction control module has the function of controlling the flow of electric energy. Specifically, the first current direction control module can control the amount of electric energy obtained from the first power supply channel by adjusting its own input impedance, and transmit the electric energy to the first on-board electrical appliance. Therefore, the first current direction control module acts as a controllable switch. In this embodiment, for the sake of convenience of explanation, the effects of components such as the first power supply module, the first power supply channel, and the first current direction control module on the loss of electric energy can be ignored.

[0060] In this embodiment, the first current direction control module is provided with a data acquisition port, which can collect the required data from the first vehicle-mounted electrical appliance and / or the second vehicle-mounted electrical appliance and other components for processing, thereby controlling whether to receive electrical energy from the first power supply channel and controlling the amount of electrical energy received from the first power supply channel.

[0061] In this embodiment, a first onboard electrical appliance is electrically connected to a second onboard electrical appliance, and each of the first and second onboard electrical appliances has bidirectional power transmission capabilities. For example, the first onboard electrical appliance can utilize power received from the first current control module to meet its own operational power requirements and then transmit the remaining power to the second onboard electrical appliance. Similarly, the second onboard electrical appliance can utilize power received from an external source to meet its own operational power requirements and then transmit the remaining power to the first onboard electrical appliance.

[0062] 2. The first working mode of the power supply system for the car

[0063] In this embodiment, you can use Figure 1 The basic structure of the power supply system for a vehicle shown in FIG. 1 is used to execute the first working mode. If the power supply system for a vehicle selects the first working mode, the power supply system for a vehicle may execute the following steps:

[0064] S1A. The first current control module obtains the first electrical energy from the first power supply channel and transmits the first electrical energy to the first vehicle-mounted electrical appliance;

[0065] S2A. The first vehicle-mounted electrical appliance obtains the second electrical energy from the first electrical energy for its own use, and transmits the third electrical energy to the second vehicle-mounted electrical appliance;

[0066] S3A. The second on-board electrical appliance uses the third electrical energy for its own use.

[0067] The principle of the first working mode, i.e. steps S1A-S3A, is as follows Figure 2 shown.

[0068] In this embodiment, in order to achieve its function, the first on-board electrical appliance needs to operate at a specific power (e.g., the rated power of the first on-board electrical appliance), and therefore requires a second electric energy E2 per unit time to support its operation. In order to achieve its function, the second on-board electrical appliance needs to operate at a specific power (e.g., the rated power of the second on-board electrical appliance), and therefore requires a third electric energy E3 per unit time to support its operation. Before executing steps S1A-S3A, the first current direction control module can determine from locally pre-stored rated power information or through handshake communication with the first on-board electrical appliance and the second on-board electrical appliance that the first on-board electrical appliance requires the second electric energy E2 and the second on-board electrical appliance requires the third electric energy E3, thereby starting to execute steps S1A-S3A.

[0069] Reference Figure 2 In step S1A, the first current control module obtains the first electric energy E1 from the first power supply channel and transmits the first electric energy E1 to the first vehicle-mounted electrical appliance. The first electric energy E1 is the sum of the second electric energy E2 and the third electric energy E3, that is, E1 = E2 + E3.

[0070] Reference Figure 2 In step S2A, the first vehicle-mounted electrical appliance obtains the second electric energy E2 from the received first electric energy E1 for its own use to support the operation of the first vehicle-mounted electrical appliance, and transmits the remaining third electric energy E3 (E3=E1-E2) to the second vehicle-mounted electrical appliance, so that the second vehicle-mounted electrical appliance executes step S3A, and uses the third electric energy E3 received from the first vehicle-mounted electrical appliance for its own use to support the operation of the second vehicle-mounted electrical appliance.

[0071] By using Figure 1The basic structure of the power supply system for an automobile shown, and the implementation of the first operating mode, can cause both the first and second on-board electrical appliances to be powered by the first power supply channel, and the electrical energy (third electrical energy E3) required for the operation of the second on-board electrical appliance to pass through the first on-board electrical appliance. In the event of a failure in the first on-board electrical appliance, the second on-board electrical appliance cannot obtain the complete third electrical energy E3 to support its own operation, which may cause the second on-board electrical appliance to also fail. The first on-board electrical appliance can be a highly important on-board electrical appliance (often with the characteristic that the failure symptoms are not obvious, such as low frequency of use during normal operation, which makes the failure symptoms easy to ignore or difficult to observe with the naked eye), such as an airbag controller, etc. The second on-board electrical appliance can be a less important on-board electrical appliance (often with the characteristic that the failure symptoms are obvious, such as high frequency of use during normal operation, which makes the failure symptoms easy to observe with the naked eye), such as the display screen and speakers in an audio and video entertainment system, etc. In this way, when a difficult-to-detect fault occurs in the first vehicle-mounted electrical appliance, the fault of the first vehicle-mounted electrical appliance can be transformed into an easily detectable phenomenon by affecting the power supply to the second vehicle-mounted electrical appliance, so that the fault of the vehicle-mounted electrical appliance can be discovered and eliminated in time, reducing the possibility of accumulation and outbreak of fault risks of the first vehicle-mounted electrical appliance (or the second vehicle-mounted electrical appliance), thereby ensuring the safe use of the car.

[0072] 3. Advanced structure of power supply and utilization system for automobiles

[0073] The structure of the advanced structure of the power supply system for automobiles is as follows Figure 3 As shown. Figure 3 , the advanced structure of the power supply system for automobiles is equivalent to Figure 1 The basic structure shown is further provided with a second power supply module, a second power supply channel, and a second current direction control module, wherein the second current direction control module is electrically connected to the second power supply channel and the second vehicle-mounted electrical appliance.

[0074] In this embodiment, the second power supply module and the first power supply module can be the same power supply module or two independent power supply modules, and the second power supply channel is electrically isolated from the first power supply channel. The second current direction control module has the same functions as the first current direction control module and can control whether to draw power from the second power supply channel and the amount of power drawn from the second power supply channel.

[0075] In this embodiment, in addition to using Figure 1 The basic structure of the power supply system for the vehicle shown in the figure can be used to perform the first working mode. Figure 3 The advanced structure of the power supply system for the vehicle shown is used to perform the first working mode. Figure 3When the advanced structure shown executes the first working mode, the second current control module controls not to obtain power from the second power supply channel, so that the steps executed by the advanced structure are the same as those of the basic structure.

[0076] 4. Second working mode for the power supply system of the car

[0077] In this embodiment, you can use Figure 3 The advanced structure of the power supply system for a vehicle shown in the figure is used to execute the second working mode. If the power supply system for a vehicle selects the second working mode, the power supply system for a vehicle can execute the following steps:

[0078] S1B. The first current control module obtains the fourth electrical energy from the first power supply channel and transmits the fourth electrical energy to the first vehicle electrical appliance;

[0079] S2B. The first vehicle-mounted electrical appliance obtains the second electrical energy from the fourth electrical energy for its own use, and transmits the fifth electrical energy to the second vehicle-mounted electrical appliance; the sum of the second electrical energy and the fifth electrical energy is the fourth electrical energy;

[0080] S3B. The second current control module obtains the sixth electrical energy from the second power supply channel and transmits the sixth electrical energy to the second vehicle electrical appliance;

[0081] S4B. The second on-board electrical appliance uses the fifth electric energy and the sixth electric energy for its own use; the sum of the fifth electric energy and the sixth electric energy is the third electric energy.

[0082] The principle of the second working mode, i.e. steps S1B-S4B, is as follows Figure 4 shown.

[0083] Before executing steps S1B-S4B, the first current direction control module and the second current direction control module may predetermine that the power required by the first vehicle electrical appliance is the second power E2 and the power required by the second vehicle electrical appliance is the third power E3.

[0084] Reference Figure 4 In step S1B, the first current control module obtains the fourth electric energy E4 from the first power supply channel and transmits the fourth electric energy E4 to the first vehicle-mounted electrical appliance.

[0085] Reference Figure 4 In step S2B, the first vehicle-mounted electrical appliance obtains the second electrical energy E2 from the received fourth electrical energy E4 for its own use to support the execution of the function of the first vehicle-mounted electrical appliance, and then transmits the remaining fifth electrical energy E5 (E5=E4-E2) to the second vehicle-mounted electrical appliance.

[0086] On the other hand, refer to Figure 4In step S3B, the second current control module obtains the sixth electric energy E6 from the second power supply channel and transmits the sixth electric energy E6 to the second vehicle-mounted electrical appliance. The magnitude of the sixth electric energy E6 satisfies E6+E5=E3.

[0087] Reference Figure 4 In step S4B, the second onboard electrical appliance receives fifth electric energy E5 from the first onboard electrical appliance and sixth electric energy E6 from the second current control module. The sum of these two electric energies is third electric energy E3, which can meet the power needs of the second onboard electrical appliance. The second onboard electrical appliance uses fifth electric energy E5 and sixth electric energy E6 for its own use, thereby supporting the execution of its functions.

[0088] In this embodiment, when executing steps S1B-S4B, the first current direction control module and the second current direction control module can communicate with each other, and the size of the fourth electric energy E4 can be determined first and then the size of the sixth electric energy E6, or the size of the sixth electric energy E6 can be determined first and then the size of the fourth electric energy E4.

[0089] In this embodiment, the sixth electric energy E6 can be set to be greater than the fifth electric energy E5 (for example, the proportion of the sixth electric energy E6 to the third electric energy E3 can be set to be greater than a threshold, where the threshold can be 80%), that is, most of the electric energy required for the operation of the second on-board electrical appliance is provided by the second power supply channel, and a small part is provided through the first on-board electrical appliance. In this way, the principle and effect of executing the second working mode are the same as those of executing the first working mode, and it is also possible to convert the fault of the first on-board electrical appliance into a fault of the second on-board electrical appliance, which is conducive to the discovery and troubleshooting of the fault. Moreover, by executing the second working mode, it is also possible to avoid the second on-board electrical appliance from being completely dependent on the first on-board electrical appliance for power supply. When the first on-board electrical appliance fails, the second on-board electrical appliance will not lose all power supply, so that the second on-board electrical appliance can still be supplied with electricity, so that it can perform basic functions, which is conducive to improving the user experience.

[0090] 5. The third working mode of the power supply system for automobiles

[0091] In this embodiment, you can use Figure 3 The advanced structure of the power supply system for a vehicle shown in the figure is used to execute the third working mode. If the power supply system for a vehicle selects the third working mode, the power supply system for a vehicle can execute the following steps:

[0092] S1C. The first current control module obtains the second electrical energy from the first power supply channel and transmits the second electrical energy to the first vehicle electrical appliance;

[0093] S2C. The first vehicle-mounted electrical appliance receives the second electrical energy for its own use;

[0094] S3C. The second current control module obtains a third electrical energy from the second power supply channel and transmits the third electrical energy to the second vehicle electrical appliance;

[0095] S4C. The second on-board electrical appliance receives the third electric energy for its own use.

[0096] The principle of the third working mode, i.e. steps S1C-S4C, is as follows Figure 5 shown.

[0097] Reference Figure 5 The third working mode realizes that the first onboard electrical appliance is completely powered by the first power supply channel, and the second onboard electrical appliance is completely powered by the second power supply channel, that is, the power supply of the first onboard electrical appliance and the second onboard electrical appliance are independent of each other. 6. The fourth working mode of the power supply system for the car

[0098] In this embodiment, you can use Figure 3 The advanced structure of the power supply system for a vehicle shown in the figure is used to execute the fourth working mode. If the power supply system for a vehicle selects the fourth working mode, the power supply system for a vehicle can execute the following steps:

[0099] S1D. The second current control module obtains the first electrical energy from the second power supply channel and transmits the first electrical energy to the second vehicle electrical appliance;

[0100] S2D. The second vehicle-mounted electrical appliance obtains the third electrical energy from the first electrical energy for its own use, and transmits the second electrical energy to the first vehicle-mounted electrical appliance; the sum of the second electrical energy and the third electrical energy is the first electrical energy;

[0101] S3D. The first vehicle-mounted electrical appliance uses the second electrical energy for its own use.

[0102] The principle of the fourth working mode, i.e. steps S1D-S3D, is as follows: Figure 6 shown.

[0103] Reference Figure 5 , the principle of the fourth working mode is the same as Figure 2 The principle of the first working mode shown is the same, which is equivalent to swapping the functions of the first current control module and the second current control module in the first working mode, and swapping the power receiving and forwarding functions of the first vehicle-mounted electrical appliance and the second vehicle-mounted electrical appliance in the first working mode, thereby obtaining the fifth working mode.

[0104] Therefore, the fourth working mode can also achieve the same technical effects as the first working mode. For example, when a difficult-to-detect fault occurs in the second vehicle-mounted electrical appliance, the fault of the second vehicle-mounted electrical appliance can be transformed into an easily detectable phenomenon by affecting the power supply to the first vehicle-mounted electrical appliance, so that the fault of the vehicle-mounted electrical appliance can be discovered and eliminated in time, thereby ensuring the safety of the car.

[0105] 7. The fifth working mode of the power supply system for automobiles

[0106] In this embodiment, you can use Figure 3 The advanced structure of the power supply system for a vehicle is shown to execute the fifth working mode. If the power supply system for a vehicle selects the fifth working mode, the power supply system for a vehicle can execute the following steps:

[0107] S1E. The second current control module obtains the seventh power from the second power supply channel and transmits the seventh power to the second vehicle electrical appliance;

[0108] S2E. The second vehicle-mounted electrical appliance obtains the third electrical energy from the seventh electrical energy for its own use, and transmits the eighth electrical energy to the first vehicle-mounted electrical appliance; the sum of the third electrical energy and the eighth electrical energy is the seventh electrical energy;

[0109] S3E. The first current control module obtains ninth power from the first power supply channel and transmits the ninth power to the first vehicle electrical appliance;

[0110] S4E. The first vehicle-mounted electrical appliance uses the eighth electric energy and the ninth electric energy for its own use; the sum of the eighth electric energy and the ninth electric energy is the second electric energy.

[0111] The fifth working mode, i.e., steps S1E-S4E, is as follows: Figure 7 shown.

[0112] Reference Figure 7 , the principle of the fifth working mode is the same as Figure 4 The principle of the second working mode shown is the same, which is equivalent to swapping the functions of the first current control module and the second current control module in the second working mode, and swapping the power receiving and forwarding functions of the first vehicle-mounted electrical appliance and the second vehicle-mounted electrical appliance in the second working mode, thereby obtaining the fifth working mode.

[0113] Therefore, the fifth working mode can also achieve the same technical effects as the second working mode. For example, it can convert the fault of the second vehicle-mounted electrical appliance into a fault of the first vehicle-mounted electrical appliance, which is conducive to the discovery and troubleshooting of the fault. It can also avoid the first vehicle-mounted electrical appliance from relying entirely on the second vehicle-mounted electrical appliance for power supply. When the second vehicle-mounted electrical appliance fails, the first vehicle-mounted electrical appliance will not lose all power supply, so that the first vehicle-mounted electrical appliance can still obtain power supply, thereby being able to perform basic functions, which is conducive to improving the user experience.

[0114] 8. Switching working mode

[0115] In this embodiment, the power supply system for an automobile can select one of the first, second, third, fourth, and fifth operating modes to operate. For example, the system can select to maintain operation in one of the operating modes or switch from one operating mode to another. The power supply system for an automobile can also select an idle mode. In the idle mode, the first current direction control module and the second current direction control module may not supply power to the first and second on-board electrical appliances.

[0116] In this embodiment, when the power supply system for a vehicle selects one of the first working mode, the second working mode, the third working mode, the fourth working mode, and the fifth working mode to operate, the following steps may be specifically performed:

[0117] P1 obtains the first important level information corresponding to the first vehicle electrical appliance, and the second important level information corresponding to the second vehicle electrical appliance;

[0118] P2. When the first level of importance is greater than the second level of importance, select the first or second working mode;

[0119] P3. When the first important level of information is equal to the second important level of information, select the third working mode;

[0120] P4. When the first importance level information is less than the second importance level information, select to execute the fourth working mode or the fifth working mode.

[0121] In step P1, the first importance level information and the second importance level information respectively indicate the importance of the first and second on-board electrical appliances. Fixed first and second importance level information can be set for the first and second on-board electrical appliances. For example, if the first on-board electrical appliance is an on-board electrical appliance such as an electronic control unit for a braking system or an airbag controller, the first importance level information can be set to a larger value (indicating a higher importance). If the second on-board electrical appliance is an on-board electrical appliance such as a display screen or a stereo system, the second importance level information can be set to a smaller value (indicating a lower importance).

[0122] In this embodiment, specific values ​​of the first importance level information and the second importance level information can also be dynamically set. Specifically, the first current direction control module and / or the second current direction control module can collect current driving task information (indicating the vehicle's current location coordinates, vehicle speed, weather conditions, environmental parameters such as temperature, humidity, and wind speed), and respectively detect the degree of match between the functional information of the first on-board electrical appliance and the current driving task information, and the degree of match between the functional information of the second on-board electrical appliance and the current driving task information. The higher the degree of match, the greater the corresponding importance level information.

[0123] For example, if the first vehicle-mounted electrical appliance is an air-conditioning motor and the second vehicle-mounted electrical appliance is a display screen, and the current driving task information indicates that the vehicle is currently driving in an outdoor environment and the weather is hot, then the first vehicle-mounted electrical appliance has a higher degree of match with the current driving task information (equivalent to the function of the first vehicle-mounted electrical appliance being more able to meet the needs of the current driving state), and the first importance level information is larger. Correspondingly, the first vehicle-mounted electrical appliance has a lower degree of match with the current driving task information, and the first importance level information is smaller.

[0124] In step P2, if the first importance level information is greater than the second importance level information, that is, the importance of the first vehicle-mounted electrical appliance is higher than the importance of the second vehicle-mounted electrical appliance, then the execution is selected. Figure 2 The first operating mode shown or Figure 4 The second working mode is shown. Specifically, if the difference between the first importance level information and the second importance level information is greater than a threshold value (for example, the importance of the first vehicle electrical appliance is much higher than that of the second vehicle electrical appliance), the first working mode is selected for execution; if the difference between the first importance level information and the second importance level information is less than a threshold value (for example, the importance of the first vehicle electrical appliance is only slightly higher than that of the second vehicle electrical appliance), the second working mode is selected for execution.

[0125] In this embodiment, the principle of executing step P2 is that if the first vehicle-mounted electrical appliance is more important than the second vehicle-mounted electrical appliance, the first vehicle-mounted electrical appliance can be executed. Figure 2 The first operating mode shown or Figure 4 The second working mode shown in FIG2 can convert the more important fault of the first on-board electrical appliance into a power supply fault of the relatively unimportant second on-board electrical appliance, thereby reducing the overall fault impact and facilitating the discovery and troubleshooting of the fault. Specifically, when the first on-board electrical appliance is more important than the second on-board electrical appliance, the second working mode is executed. Figure 2 The first working mode shown is conducive to fully converting the fault of the first on-board electrical appliance into a power supply fault of the second on-board electrical appliance, thereby facilitating the fault discovery and troubleshooting of the very important first on-board electrical appliance; in the case where the first on-board electrical appliance is less important than the second on-board electrical appliance, executing Figure 4 The second working mode shown can reduce the impact on the second vehicle-mounted electrical appliance.

[0126] In step P3, if the first importance level information is equal to the second importance level information, that is, the importance level of the first vehicle-mounted electrical appliance is the same as the importance level of the second vehicle-mounted electrical appliance, then the execution is selected. Figure 5 The third operating mode is shown.

[0127] In this embodiment, the principle of executing step P3 is that: when the first vehicle-mounted electrical appliance and the second vehicle-mounted electrical appliance are equally important, Figure 5 The third working mode shown can realize independent power supply to the first onboard electrical appliance and the second onboard electrical appliance, thereby avoiding each other's fault conversion and ensuring the overall function of the car.

[0128] In this embodiment, according to the principles of the fourth working mode and the fifth working mode, the principle and effect of executing step P4 are the same as the principle and effect of executing step P2, and it can also be beneficial to the fault discovery and troubleshooting of more important on-board electrical appliances, and reduce the impact on relatively unimportant on-board electrical appliances.

[0129] In this embodiment, the power supply system for a car can be installed on the car, making the power supply system for a car a part of the car, thereby enabling the entire car to achieve the same technical effect as the power supply system for a car.

[0130] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in this disclosure are only relative to the relative positional relationships of the components of the present disclosure in the accompanying drawings. The singular forms of "a", "" and "the" used in this disclosure are also intended to include the plural forms, unless the context clearly indicates otherwise. In addition, unless otherwise defined, all technical and scientific terms used in this embodiment have the same meaning as those generally understood by those skilled in the art. The terms used in the specification of this embodiment are only for describing specific embodiments and are not intended to limit the invention. The term "and / or" used in this embodiment includes any combination of one or more related listed items.

[0131] It should be understood that, although the present disclosure may adopt the term first, second, third etc. to describe various elements, these elements should not be limited to these terms.These terms are only used to distinguish the elements of the same type from each other.For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element.The use of any and all examples or exemplary language ("for example", "such as" etc.) provided by the present embodiment is only intended to better illustrate embodiments of the present invention, and unless otherwise required, the scope of the present invention will not be limited.

[0132] It should be appreciated that embodiments of the present invention can be implemented or practiced by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable memory. The methods can be implemented in a computer program using standard programming techniques - including a non-transitory computer-readable storage medium configured with a computer program, wherein the storage medium so configured causes the computer to operate in a specific and predefined manner - according to the methods and figures described in the specific embodiments. Each program can be implemented in a high-level procedural or object-oriented programming language to communicate with the computer system. However, if desired, the program can be implemented in assembly or machine language. In any case, the language can be a compiled or interpreted language. In addition, the program can be run on a programmed application-specific integrated circuit for this purpose.

[0133] In addition, the operations of the processes described in this embodiment may be performed in any suitable order, unless otherwise indicated in this embodiment or otherwise clearly contradicted by the context. The processes described in this embodiment (or variations and / or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) that is executed collectively on one or more processors, by hardware, or a combination thereof. A computer program includes multiple instructions that can be executed by one or more processors.

[0134] Furthermore, the method can be implemented in any type of computing platform that is operably connected to a suitable computer, including but not limited to a personal computer, a minicomputer, a mainframe, a workstation, a network or distributed computing environment, a separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, etc. Various aspects of the present invention can be implemented as machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, an optical read and / or write storage medium, RAM, ROM, etc., so that it can be read by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the process described herein. In addition, the machine-readable code, or portions thereof, can be transmitted over a wired or wireless network. When such media includes instructions or programs that implement the above steps in conjunction with a microprocessor or other data processor, the invention of this embodiment includes these and other different types of non-transitory computer-readable storage media. When programmed according to the methods and techniques of the present invention, the present invention also includes the computer itself.

[0135] The computer program can be applied to input data to perform the functions of the present embodiment, thereby converting the input data to generate output data that is stored in a non-volatile memory. The output information can also be applied to one or more output devices such as a display. In a preferred embodiment of the present invention, the converted data represents a physical and tangible object, including a specific visual depiction of the physical and tangible object produced on the display.

[0136] The above are merely preferred embodiments of the present invention. The present invention is not limited to the aforementioned embodiments. As long as the technical effects of the present invention are achieved by the same means, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. Within the scope of protection of the present invention, various modifications and variations of the technical solutions and / or implementation methods may be made.

Claims

1. A power supply system for a car, characterized in that: The power supply system for a vehicle comprises: a first power supply channel; A first on-vehicle electrical appliance and a second on-vehicle electrical appliance; the first on-vehicle electrical appliance and the second on-vehicle electrical appliance are electrically connected; a first current direction control module; the first current direction control module is electrically connected to the first power supply channel and the first vehicle-mounted electrical appliance respectively; The power supply system for a vehicle is configured to select a first operating mode, wherein the first operating mode includes: The first current direction control module obtains first electric energy from the first power supply channel and transmits the first electric energy to the first on-board electrical appliance; The first on-board electrical appliance obtains second electrical energy from the first electrical energy for its own use, and transmits third electrical energy to the second on-board electrical appliance; the sum of the second electrical energy and the third electrical energy is the first electrical energy; The second vehicle-mounted electrical appliance uses the third electrical energy for its own use.

2. The power supply system for a vehicle according to claim 1, characterized in that: The power supply system for the automobile further includes: A second power supply channel; A second current direction control module; the second current direction control module is electrically connected to the second power supply channel and the second vehicle-mounted electrical appliance respectively; The power supply system for a vehicle is configured to select a second operating mode, wherein the second operating mode includes: The first current direction control module obtains fourth electric energy from the first power supply channel and transmits the fourth electric energy to the first on-board electrical appliance; The first on-board electrical appliance obtains second electrical energy from the fourth electrical energy for its own use and transmits fifth electrical energy to the second on-board electrical appliance; the sum of the second electrical energy and the fifth electrical energy is the fourth electrical energy; The second current direction control module obtains sixth electric energy from the second power supply channel and transmits the sixth electric energy to the second on-board electrical appliance; The second vehicle-mounted electrical appliance uses the fifth electric energy and the sixth electric energy for its own use; the sum of the fifth electric energy and the sixth electric energy is the third electric energy.

3. The power supply system for a vehicle according to claim 2, characterized in that: The power supply system for a vehicle is configured to select a third operating mode, wherein the third operating mode includes: The first current direction control module obtains second electric energy from the first power supply channel and transmits the second electric energy to the first on-board electrical appliance; The first on-vehicle electrical appliance receives the second electrical energy for its own use; The second current direction control module obtains third electric energy from the second power supply channel and transmits the third electric energy to the second on-board electrical appliance; The second vehicle-mounted electrical appliance receives the third electrical energy for its own use.

4. The power supply system for a vehicle according to claim 2, characterized in that: The power supply system for a vehicle is configured to select and operate in a fourth operating mode, wherein the fourth operating mode includes: The second current direction control module obtains the first electric energy from the second power supply channel and transmits the first electric energy to the second on-board electrical appliance; The second on-board electrical appliance obtains third electrical energy from the first electrical energy for its own use and transmits the second electrical energy to the first on-board electrical appliance; the sum of the second electrical energy and the third electrical energy is the first electrical energy; The first vehicle-mounted electrical appliance uses the second electrical energy for its own use.

5. The power supply system for a vehicle according to claim 2, characterized in that: The power supply system for a vehicle is configured to select a fifth operating mode, wherein the fifth operating mode includes: The second current direction control module obtains seventh electric energy from the second power supply channel and transmits the seventh electric energy to the second on-board electrical appliance; The second on-board electrical appliance obtains third electrical energy from the seventh electrical energy for its own use and transmits the eighth electrical energy to the first on-board electrical appliance; the sum of the third electrical energy and the eighth electrical energy is the seventh electrical energy; The first current direction control module obtains ninth electric energy from the first power supply channel and transmits the ninth electric energy to the first onboard electrical appliance; The first vehicle-mounted electrical appliance uses the eighth electric energy and the ninth electric energy for its own use; the sum of the eighth electric energy and the ninth electric energy is the second electric energy.

6. The power supply system for a vehicle according to any one of claims 1 to 5, characterized in that: The power supply system for a vehicle is used to select one working mode among a first working mode, a second working mode, a third working mode, a fourth working mode and a fifth working mode to perform work.

7. The power supply system for a vehicle according to claim 6, characterized in that: The selecting one of the first working mode, the second working mode, the third working mode, the fourth working mode and the fifth working mode to perform the work includes: Acquire first importance level information corresponding to the first vehicle-mounted electrical appliance, and second importance level information corresponding to the second vehicle-mounted electrical appliance; When the first importance level information is greater than the second importance level information, selecting to execute the first working mode or the second working mode; When the first importance level information is equal to the second importance level information, selecting to execute the third working mode; When the first importance level information is less than the second importance level information, the fourth working mode or the fifth working mode is selected to be executed.

8. The power supply system for a vehicle according to claim 7, characterized in that: The selecting to execute the first working mode or the second working mode includes: When the difference between the first importance level information and the second importance level information is greater than a threshold, selecting to execute the first working mode; When the difference between the first importance level information and the second importance level information is smaller than a threshold, the second working mode is selected to be executed.

9. The power supply system for a vehicle according to claim 7, characterized in that: The selecting and executing the fourth working mode or the fifth working mode includes: When the difference between the second importance level information and the first importance level information is greater than a threshold, selecting to execute the fourth working mode; When the difference between the second importance level information and the first importance level information is smaller than a threshold, the fifth working mode is selected to be executed.

10. An automobile, characterized in that: The car includes: The power supply system for a vehicle according to any one of claims 1 to 9.

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