Vehicle power distribution system and vehicle

Abstract

The invention relates to a vehicle power distribution system and a vehicle. A vehicle power distribution system includes: a power source; a plurality of power distribution controllers, wherein each power distribution controller is electrically connected with the power supply; the load is electrically connected with at least two power distribution controllers in the plurality of power distribution controllers respectively; wherein the power supply is configured to output electric energy, and each power distribution controller is configured to output the electric energy to a load electrically connected with the power distribution controller according to the electric energy obtained from the power supply. According to the technical scheme, the problem that the load cannot work normally due to failure of the power distribution controller is solved, power is reliably and stably supplied to the vehicle load, and then the reliability and stability of vehicle operation are guaranteed.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more particularly to vehicle power distribution systems and vehicles. Background Technology

[0002] With the development of vehicle technology, new energy vehicles have also developed. New energy vehicles contain various loads powered by electrical sources, such as those within the intelligent driving system. Therefore, new energy vehicles are typically equipped with a power distribution system to supply power to these various loads. Summary of the Invention

[0003] To overcome the problem in related technologies that cannot reliably and stably supply power to the vehicle's load, thus failing to guarantee the reliability and stability of vehicle operation, this disclosure provides a vehicle power distribution system and vehicle, which solves the problem of load malfunction caused by power distribution controller failure, and achieves reliable and stable power supply to the vehicle's load, thereby ensuring the reliability and stability of vehicle operation.

[0004] According to a first aspect of the present disclosure, a vehicle power distribution system is provided, comprising: a power source; a plurality of power distribution controllers, each power distribution controller being electrically connected to the power source; and a load, the load being electrically connected to at least two of the plurality of power distribution controllers respectively; wherein the power source is configured to output electrical energy, and each power distribution controller is configured to output electrical energy to the load electrically connected to the power distribution controller based on the electrical energy obtained from the power source.

[0005] In a power distribution system, multiple power distribution controllers are configured. For each load requiring power, it is electrically connected to at least two of these controllers. This system architecture effectively provides a redundant and mutually backup power distribution mechanism for the load. Therefore, if one of the at least two power distribution controllers connected to the load fails, the remaining valid controllers can still supply power to the load. This solves the problem of load malfunction caused by controller failure, ensuring reliable and stable power supply to the vehicle load and thus guaranteeing the reliability and stability of vehicle operation.

[0006] In some possible implementations, the power supply includes a first power supply and a second power supply, the first power supply and the second power supply having different output voltages, and each power distribution controller being electrically connected to at least one of the first power supply and the second power supply.

[0007] By configuring power supplies with different output voltages, it is possible to provide different voltage levels of electrical energy to the load to adapt to more power distribution scenarios. Furthermore, by making the two power supplies redundant and mutually redundant, the other power supply can provide power in the event of an anomaly in one power supply, thereby maintaining the reliability and stability of the power distribution system.

[0008] In some possible implementations, the plurality of power distribution controllers are electrically connected via a power distribution bus and form a chain topology, wherein the first power distribution controller in the chain topology is electrically connected to the first power source, and the second power distribution controller in the chain topology is electrically connected to the second power source.

[0009] Multiple power distribution controllers are connected to the first and second power sources in a serial manner, so that each power distribution controller can receive electrical energy from both power sources simultaneously, thereby improving the reliability and stability of power distribution.

[0010] In some possible implementations, each power distribution controller includes a first interface and a second interface, wherein the first interface of each power distribution controller is electrically connected to the first power supply, and / or the second interface of each power distribution controller is electrically connected to the second power supply.

[0011] Each power distribution controller can be independently connected to the first power source and / or the second power source. Thus, each power distribution controller is connected to the power source in parallel. In this way, if one power distribution controller fails, it will not affect the connection between the remaining power distribution controllers and the power source, thereby improving the reliability and stability of the power distribution system.

[0012] In some possible implementations, each power distribution controller is further configured to: when the electrical energy obtained from the power source includes electrical energy from a first power source and electrical energy from a second power source, obtain electrical energy with a higher output voltage from the electrical energy from the first power source and electrical energy from the second power source; and output electrical energy to a load electrically connected to the power distribution controller based on the electrical energy with the higher output voltage.

[0013] When the power distribution controller receives power from two sources, it prioritizes the power source with the higher output voltage to distribute power to the load, thereby providing a more stable power supply to the load and improving the stability of the power distribution.

[0014] In some possible implementations, the power source includes a battery pack with an output voltage higher than the supply voltage of the load. The vehicle power distribution system further includes a voltage converter, the input of which is electrically connected to the battery pack, and the output of which is electrically connected to each power distribution controller. The voltage converter is configured to adjust the voltage of the electrical energy output from the battery pack according to the supply voltage of the load, and output the adjusted voltage electrical energy. Each power distribution controller is configured to output electrical energy to the load electrically connected to the power distribution controller based on the adjusted voltage electrical energy obtained from the voltage converter.

[0015] Voltage conversion is achieved through a voltage converter, enabling the power distribution controller to output electrical energy that matches the supply voltage to the corresponding load, thereby improving the reliability of the power distribution system.

[0016] In some possible implementations, the battery pack includes a first battery and a second battery, the first battery being electrically connected to the second battery, and the voltage converter includes a first voltage converter and a second voltage converter. The input terminal of the first voltage converter is electrically connected to the first battery and the second battery, respectively, and the output terminal of the first voltage converter is electrically connected to each power distribution controller. The input terminal of the second voltage converter is connected to the first battery and the second battery, respectively, and the output terminal of the second voltage converter is electrically connected to each power distribution controller.

[0017] The battery pack adopts a dual-battery redundant power architecture, which can avoid the situation where one battery fails and cannot output power normally, thus improving the reliability and stability of the power distribution system.

[0018] In some possible implementations, each power distribution controller includes a protection circuit configured to: disconnect the electrical connection between the power distribution controller and the corresponding load in the event of a detected power distribution anomaly, and restore the electrical connection between the power distribution controller and the corresponding load in the event of a detected restoration of normal power distribution.

[0019] The protection circuits set in the power distribution controller can actively disconnect the load power supply in the event of a power distribution anomaly, and automatically restore the load power supply when the power distribution returns to normal. This not only ensures the safety of the power distribution system, but also enables the automatic restoration of the load power supply, thereby improving the performance of the power distribution system.

[0020] In some possible implementations, the plurality of power distribution controllers include area controllers corresponding to different cabin areas of the vehicle.

[0021] By configuring the area controller as a power distribution controller, the vehicle pairing system can be embedded into the vehicle's existing control system architecture, reducing resource waste and improving overall vehicle performance.

[0022] In some possible implementations, the load includes the load in the vehicle's intelligent driving system.

[0023] By using a highly reliable and stable power distribution system, power is distributed to the loads in the vehicle's intelligent driving system, thereby improving the reliability and stability of the intelligent driving system and ultimately enhancing the overall vehicle's operational stability and safety.

[0024] In some possible implementations, the loads in the intelligent driving system include at least one load from the intelligent driving controller, steering system, braking system, and drive system.

[0025] A highly reliable and stable power distribution system is used to distribute power to loads such as the intelligent driving controller, steering system, braking system, and drive system, thereby improving the reliability and stability of the entire intelligent driving system.

[0026] According to a second aspect of the present disclosure, a vehicle is provided that includes a vehicle power distribution system as described in the first aspect of the present disclosure.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0029] Figure 1 This is a structural block diagram of a vehicle power distribution system according to an exemplary embodiment.

[0030] Figure 2 This is a schematic diagram illustrating a connection method between a power distribution controller and a power supply according to an exemplary embodiment.

[0031] Figure 3 This is a schematic diagram illustrating the connection relationship between a power distribution controller and a power source according to an exemplary embodiment.

[0032] Figure 4 This is a schematic diagram illustrating the connection relationship between a battery pack and a voltage converter according to an exemplary embodiment.

[0033] Figure 5 This is a schematic diagram of the circuit structure of a vehicle power distribution system according to an exemplary embodiment.

[0034] Figure 6 This is a block diagram illustrating a vehicle according to an exemplary embodiment.

[0035] Figure 7This is a block diagram illustrating yet another type of vehicle according to an exemplary embodiment. Detailed Implementation

[0036] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0037] It should be noted that all actions involving the acquisition of signals, information, or data in this disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the location is situated, and with authorization from the owner of the relevant device.

[0038] As mentioned in the background section, new energy vehicles are equipped with power distribution systems to provide power to various loads.

[0039] A power distribution system can be a power distribution link consisting of a power source, a power distribution controller, and a load. The power distribution controller can transfer electrical energy from the power source to the load to enable the load to be powered.

[0040] In related technologies, the vehicle's power distribution system is implemented by a single, unified power distribution controller. This means that if the power distribution controller fails, the load will malfunction, potentially causing the entire intelligent driving system to fail. Therefore, the power distribution system in these technologies cannot reliably and stably supply power to the vehicle's loads, thus compromising the reliability and stability of vehicle operation.

[0041] Based on this, the present disclosure provides a technical solution in a power distribution system. Multiple power distribution controllers are configured, and each load requiring power is electrically connected to at least two of these controllers. This power distribution system architecture is equivalent to configuring a redundant and mutually backup power distribution mechanism for the load. Therefore, if one of the at least two power distribution controllers electrically connected to the load fails, the remaining valid controllers can transmit the power output to the load. This solves the problem of load malfunction caused by power distribution controller failure, enabling reliable and stable power supply to the vehicle load, thereby ensuring the reliability and stability of vehicle operation.

[0042] Figure 1 This is a structural block diagram of a vehicle power distribution system 100 according to an exemplary embodiment, such as... Figure 1As shown, the vehicle power distribution system 100 includes: a power supply 101, a power distribution controller 102, and a load 103.

[0043] The number of power distribution controllers 102 is multiple. Figure 1 Three are shown, and each power distribution controller 102 can be electrically connected to the power supply 101.

[0044] Furthermore, the load 103 is electrically connected to at least two of the plurality of power distribution controllers 102, respectively. Figure 1 The diagram shows the electrical connections to the two power distribution controllers 102, respectively.

[0045] Furthermore, there may be multiple loads 103, each of which is electrically connected to at least two of the multiple power distribution controllers 102.

[0046] based on Figure 1 In the system architecture shown, power supply 101 outputs electrical energy, power distribution controller 102 receives the electrical energy output by power supply 101, and then power distribution controller 102 outputs electrical energy to load 103 electrically connected to power distribution controller 102 based on the electrical energy obtained from power supply 101.

[0047] It is understandable that for load 103, power distribution is achieved through at least two power supply circuits, which can ensure at least one redundant power distribution. In case of an abnormal situation, only the abnormal power supply circuit will disconnect the power distribution, while the power supply circuit without abnormality can still distribute power to load 103. That is, through redundant power supply circuits, power distribution to load 103 is maintained, ensuring the reliability and stability of the power supply to load 103.

[0048] In one embodiment, the power supply 101 includes a first power supply and a second power supply; wherein the output voltages of the first power supply and the second power supply are different, and each power distribution controller 102 is electrically connected to at least one of the first power supply and the second power supply.

[0049] In this implementation, by configuring power supplies 101 with different output voltages, different voltage levels of electrical energy can be provided to the load 103 to adapt to more power distribution scenarios. Furthermore, by having the two power supplies 101 redundantly and mutually redundantly, the other power supply 101 can provide electrical energy in the event of an anomaly in one power supply 101, thereby maintaining the reliability and stability of the vehicle power distribution system 100.

[0050] In one embodiment, the first power source can be a high-voltage battery pack, and the second power source can be a 12V small battery. The output voltage of the high-voltage battery pack is higher than the output voltage of the 12V small battery; for example, if the output voltage of the 12V small battery is 13.5V, the output voltage of the high-voltage battery pack is converted to 13V.

[0051] In one implementation, if only one power supply 101 is provided, multiple power distribution controllers 102 can be electrically connected to the power supply 101 in parallel. For example, power distribution controller one is electrically connected to the power supply 101, power distribution controller two is electrically connected to the power supply 101, and power distribution controller three is electrically connected to the power supply 101.

[0052] In one implementation, if two power supplies 101 are provided, multiple power distribution controllers 102 can be electrically connected to the power supplies 101 in a serial manner, and the multiple power distribution controllers 102 can form a chain topology.

[0053] In one implementation, if two power supplies 101 are provided, multiple power distribution controllers 102 can be electrically connected to the power supplies 101 in a parallel + serial manner. For example, multiple power distribution controllers 102 can be electrically connected in parallel to the power supply 101 with a higher output voltage, and in parallel to the power supply 101 with a lower output voltage.

[0054] Therefore, based on the configuration of the power supply 101 in different application scenarios, the power distribution controller 102 and the power supply 101 can adopt different electrical connection methods.

[0055] As an optional implementation, multiple power distribution controllers 102 are electrically connected through a power distribution bus and form a chain topology. The first power distribution controller 102 in the chain topology is electrically connected to the first power supply, and the second power distribution controller 102 in the chain topology is electrically connected to the second power supply.

[0056] In this implementation, multiple power distribution controllers 102 are connected to the first power source and the second power source in a serial manner. Thus, each power distribution controller 102 can simultaneously receive electrical energy output from the two power sources 101, improving the reliability and stability of power distribution.

[0057] Figure 2 This is a schematic diagram illustrating a connection method between a power distribution controller 102 and a power supply 101 according to an exemplary embodiment. Figure 2 The system involves power distribution controller 1, power distribution controller 2, and power distribution controller 3; as well as high-voltage battery packs and 12V small batteries.

[0058] Among them, the first terminal of power distribution controller 1 is electrically connected to the high-voltage battery pack, the second terminal of power distribution controller 1 is electrically connected to the first terminal of power distribution controller 2, the second terminal of power distribution controller 2 is electrically connected to the first terminal of power distribution controller 3, and the second terminal of power distribution controller 3 is electrically connected to the 12V small battery, so that the three power distribution controllers 102 form a chain topology, and all three power distribution controllers 102 can receive power from the high-voltage battery pack and the 12V small battery.

[0059] If the power supply circuit of high-voltage battery pack - power distribution controller 1 - power distribution controller 2 - power distribution controller 3 is abnormal, the power supply circuit of 12V small battery - power distribution controller 3 - power distribution controller 2 - power distribution controller 1 will be used to distribute power to load 103.

[0060] As an optional implementation, each power distribution controller 102 includes a first interface and a second interface, wherein the first interface of each power distribution controller 102 is electrically connected to a first power supply, and / or the second interface of each power distribution controller 102 is electrically connected to a second power supply.

[0061] In this implementation, each power distribution controller 102 can be independently connected to the first power supply and / or the second power supply. Thus, each power distribution controller 102 is connected to the power supply 101 in parallel. In this way, if one power distribution controller 102 fails, it will not affect the connection between the remaining power distribution controllers 102 and the power supply 101, thereby improving the reliability and stability of the vehicle power distribution system 100.

[0062] In one implementation, the first interface and the second interface can be interfaces adapted to different output voltages, for example: the first interface is a 14V interface and the second interface is a 13.5V interface.

[0063] In one implementation, the choice can be made between connecting one power supply 101 or two power supplies 101, depending on the importance of the loads 103 connected to each power distribution controller 102 to vehicle operation. For example, for the loads 103 in the intelligent driving system, both the first power supply and the second power supply can be connected simultaneously to ensure the stable operation of the intelligent driving system.

[0064] In one implementation, the electrical energy received by each power distribution controller 102 can be from one power source 101 or from two power sources 101. If the electrical energy comes from one power source 101, the power distribution controller 102 can directly distribute power to the load 103 based on the received electrical energy. If the electrical energy comes from two or more power sources 101, one of the power sources can be preferentially selected to distribute power to the load 103.

[0065] Therefore, as an optional implementation, each power distribution controller 102 is further configured to: when the electrical energy obtained from the power source 101 includes the electrical energy of the first power source and the electrical energy of the second power source, obtain electrical energy with a higher output voltage from the electrical energy of the first power source and the electrical energy of the second power source; and output electrical energy to the load 103 electrically connected to the power distribution controller 102 based on the electrical energy with a higher output voltage.

[0066] In this implementation, when the power distribution controller 102 receives power from two power sources 101, it preferentially selects the power source with the higher output voltage to distribute power to the load 103, thereby providing the load 103 with more stable power and improving the stability of power distribution.

[0067] In one embodiment, the power supply 101 includes a battery pack, such as a high-voltage battery pack, whose output voltage is higher than the supply voltage of the load 103. The vehicle power distribution system 100 may further include a voltage converter, the input of which is electrically connected to the battery pack, and the output of which is electrically connected to each power distribution controller 102. The voltage converter is configured to adjust the voltage of the electrical energy output from the battery pack according to the supply voltage of the load 103, and output the adjusted voltage electrical energy. Each power distribution controller 102 is configured to output electrical energy to the load 103 electrically connected to it, based on the adjusted voltage electrical energy obtained from the voltage converter.

[0068] In this implementation, voltage conversion is achieved through a voltage converter so that the power distribution controller 102 can output electrical energy to the corresponding load 103 that matches its supply voltage, thereby improving the reliability of the vehicle power distribution system 100.

[0069] It is understood that the aforementioned first power source can be the battery pack mentioned here. Therefore, based on the electrical connection method between the aforementioned first power source and each power distribution controller 102, a voltage converter can be connected between the first power source and each power distribution controller 102. For example, a power supply circuit is: first power source - voltage converter - power distribution controller 102 - load 103.

[0070] Regarding the voltage converter, it can be selected according to the output voltage of the battery pack and the power supply voltage of the load 103 to adapt to the entire vehicle power distribution system 100.

[0071] Figure 3 This is a schematic diagram illustrating the connection relationship between a power distribution controller 102 and a power supply 101 according to an exemplary embodiment. Figure 3 The project involves power distribution controller 1, power distribution controller 2, and power distribution controller 3; as well as high-voltage battery packs, voltage converters, and 12V small batteries.

[0072] The output terminal of the high-voltage battery pack is electrically connected to the input terminal of the voltage converter. The first terminal of the first power distribution controller is electrically connected to the output terminal of the voltage converter. The second terminal of the first power distribution controller is electrically connected to the first terminal of the second power distribution controller. The second terminal of the second power distribution controller is electrically connected to the first terminal of the third power distribution controller. The second terminal of the third power distribution controller is electrically connected to the 12V small battery. This makes the three power distribution controllers 102 form a chain topology, and allows all three power distribution controllers 102 to receive electrical energy from the high-voltage battery pack and the 12V small battery.

[0073] If the power supply circuit of high-voltage battery pack - voltage converter - power distribution controller 1 - power distribution controller 2 - power distribution controller 3 is abnormal, the power supply circuit of 12V small battery - power distribution controller 3 - power distribution controller 2 - power distribution controller 1 will be used to distribute the power to load 103.

[0074] In the embodiments disclosed herein, the voltage converter may also be referred to as a power converter, which may be a DC-DC converter, i.e., a direct-to-direct-current converter.

[0075] In one embodiment, the battery pack may include a first battery and a second battery, with the first battery electrically connected to the second battery. Correspondingly, the voltage converter includes a first voltage converter and a second voltage converter.

[0076] The input terminal of the first voltage converter is electrically connected to the first battery and the second battery respectively, and the output terminal of the first voltage converter is electrically connected to each power distribution controller 102. The input terminal of the second voltage converter is connected to the first battery and the second battery respectively, and the output terminal of the second voltage converter is electrically connected to each power distribution controller 102.

[0077] In this implementation, the battery pack adopts a dual-battery redundant power supply 101 architecture, which can avoid the situation where one battery is abnormal and cannot output power normally, thereby improving the reliability and stability of the vehicle power distribution system 100.

[0078] The electrical connection between the first battery and the second battery can be either a parallel connection or a series connection; no limitation is made here.

[0079] It is understandable that if the output voltage of the battery pack can match the load 103, then there is no need to set up a voltage converter.

[0080] Figure 4 This is a schematic diagram illustrating the connection relationship between a battery pack and a voltage converter according to an exemplary embodiment, such as... Figure 4As shown, battery one (bank1) and battery two (bank2) can be connected in series or in parallel. Battery one and battery two are connected to the input terminals of two voltage converters through switches K1 and K2, respectively. The output terminals of the two voltage converters are used to connect to the corresponding power distribution controller 102.

[0081] In one embodiment, each power distribution controller 102 includes a protection circuit, which is configured to: disconnect the electrical connection between the power distribution controller 102 and the corresponding load 103 when a power distribution abnormality is detected, and restore the electrical connection between the power distribution controller 102 and the corresponding load 103 when the power distribution is restored to normal.

[0082] In this implementation, the protection circuit set by the power distribution controller 102 can actively disconnect the power supply to the load 103 in the event of a power distribution abnormality, and automatically restore the power supply to the load 103 when the power distribution returns to normal. This not only ensures the safety of the vehicle power distribution system 100, but also enables the automatic restoration of the power supply to the load 103, thereby improving the performance of the vehicle power distribution system 100.

[0083] In one implementation, the protection circuit can be an eFuse circuit. For specific implementations of the eFuse circuit, please refer to the mature technologies in this field, which will not be described in detail here.

[0084] In addition to the eFuse circuit, other protection circuits with abnormal power outages and automatic recovery after normal operation can also be used, and no restrictions are imposed here.

[0085] Therefore, after receiving electrical energy, each power distribution controller 102 can realize intelligent power distribution of the corresponding load 103 through the eFuse circuit, so as to output the required electrical energy to the load 103.

[0086] In one embodiment, the plurality of power distribution controllers 102 include area controllers corresponding to different cabin areas of the vehicle.

[0087] In this implementation, by configuring the area controller as the power distribution controller 102, the vehicle pairing system can be embedded into the vehicle's existing control system architecture, reducing resource waste and improving overall vehicle performance.

[0088] As an example, there are three power distribution controllers 102: a left area controller, a right area controller, and a rear area controller.

[0089] In one embodiment, load 103 includes load 103 in the vehicle's intelligent driving system.

[0090] The highly reliable and stable vehicle power distribution system 100 distributes power to the load 103 in the vehicle intelligent driving system, thereby improving the reliability and stability of the intelligent driving system and thus enhancing the overall vehicle operation stability and safety.

[0091] In one embodiment, the load 103 in the intelligent driving system includes at least one load 103 from the intelligent driving controller, steering system, braking system, and drive system.

[0092] The highly reliable and stable vehicle power distribution system 100 distributes power to loads 103 such as the intelligent driving controller, steering system, braking system and drive system, thereby improving the reliability and stability of the entire intelligent driving system.

[0093] As an example, the drive system can be electrically connected to the rear area controller and the left area controller so that the rear area controller and the left area controller can achieve redundant power distribution for the drive system.

[0094] As an example, the intelligent driving controller is electrically connected to the left area controller and the right area controller respectively, so that the left area controller and the right area controller can achieve redundant power distribution for the intelligent driving controller.

[0095] As an example, the steering system is electrically connected to the left area controller and the right area controller respectively, so that the left area controller and the right area controller can achieve redundant power distribution for the steering system.

[0096] As an example, the braking system is electrically connected to the left and right area controllers respectively, so that the left and right area controllers can achieve redundant power distribution for the braking system.

[0097] In one implementation, the power distribution objects of each system can be chips or electronic components such as SoC (System on Chip) and MCU (Microcontroller Unit).

[0098] Figure 5 This is a schematic diagram of the circuit structure of a vehicle power distribution system 100 according to an exemplary embodiment. Figure 5 In the power supply 101, there are high-voltage battery packs and 12V small batteries. The power distribution controller 102 includes three area controllers, namely the left area controller, the right area controller and the rear area controller.

[0099] The three area controllers are electrically connected using a chain topology. The rear area controller is electrically connected to the high-voltage battery pack, and the left area controller is electrically connected to a 12V small battery.

[0100] In addition, the high-voltage battery pack is equipped with two DC power supplies 101, and the voltage converter is equipped with two DC-DC converters accordingly.

[0101] based on Figure 5 The circuit structure of the vehicle power distribution system 100 shown can involve two types of power distribution links: DC-DC power distribution link and 12V small battery power distribution link.

[0102] In the DC-DC power distribution link, two DC-DC power supplies are provided. In the event of failure of one power supply 101, a redundant DC-DC power distribution is provided. The power supply voltage of each controller in the vehicle is the typical 14V voltage output by the DC-DC converter.

[0103] After receiving power from the DC-DC converter, the rear area controller distributes power to the rear motor system REDS through the intelligent power distribution eFuse circuit. The power distribution targets include electronic components such as SoC and MCU on the board.

[0104] After receiving power from the DC-DC converter, the right area controller distributes power to the ADD-1 of the intelligent driving system, the EPS1 of the steering system, and the BCS1 of the braking system through the intelligent power distribution eFuse circuit.

[0105] After receiving power from the DC-DC converter, the left zone controller distributes power to the ADD-2 of the intelligent driving system, the EPS2 of the steering system, the BCS2 of the braking system, and the FEDS of the front motor system through the intelligent power distribution eFuse circuit.

[0106] In the 12V small battery power distribution link, the typical voltage of 13.5V provided by the small battery is used to power the whole vehicle, which can solve problems such as the main battery of the vehicle being depleted or temporary power distribution when it is not in working condition.

[0107] After receiving power from the 12V small battery, the rear area controller distributes power to the rear motor system REDS through the intelligent power distribution eFuse circuit. The power distribution targets include electronic components such as SoC and MCU on the board.

[0108] After receiving power from the 12V small battery, the right area controller distributes power to the ADD-1 of the intelligent driving system, the EPS1 of the steering system, and the BCS1 of the braking system through the intelligent power distribution eFuse circuit.

[0109] After receiving power from the 12V small battery, the left area controller distributes power to the ADD-2 of the intelligent driving system, the EPS2 of the steering system, the BCS2 of the braking system, and the FEDS of the front motor system through the intelligent power distribution eFuse circuit.

[0110] Among them, the 12V small battery power distribution and the DCDC power distribution have a competitive power distribution relationship. For example, the power distribution is responsible for whichever output voltage is higher between the 12V small battery and the DCDC, ensuring that only one power supply 101 is distributing power at any given time.

[0111] With this vehicle power distribution system 100 architecture, the number of power distribution controllers 102 is increased to three, and each power distribution controller 102 is guaranteed to be powered by both DC-DC converter and 12V small battery at the same time.

[0112] For the wiring harness failure points A, B, C, and D of the power distribution controller 102, even if the wiring harness fails, the power distribution controller 102 can at least guarantee that there is still a redundant power distribution.

[0113] The smallest unit responsible for bringing the vehicle to a stop in an emergency: the intelligent driving controller, motor system, steering system, and braking system. At least one controller in the braking system has redundant power distribution. Even if one power supply 101 is abnormal or the power distribution controller 102 fails, there is still a power distribution circuit that can work normally.

[0114] Therefore, even under various abnormal conditions, the minimum system of the whole vehicle can be guaranteed to work, thereby ensuring the normal parking function of the intelligent driving system.

[0115] Figure 6 This is a block diagram illustrating a vehicle 600 according to an exemplary embodiment. For example, vehicle 600 can be a hybrid vehicle, a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle, or other types of vehicle. Vehicle 600 can be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0116] like Figure 6 As shown, vehicle 600 may include vehicle power distribution system 100, which can realize the power distribution function of loads that need power distribution in vehicle 600.

[0117] Figure 7 This is a block diagram illustrating yet another vehicle 600 according to an exemplary embodiment, with reference to... Figure 7 The vehicle 600 may include various subsystems, such as an infotainment system 610, a perception system 620, a decision control system 630, a drive system 640, and a computing platform 650. The vehicle 600 may also include more or fewer subsystems, and each subsystem may include multiple components. Furthermore, each subsystem and each component of the vehicle 600 can be interconnected via wired or wireless means.

[0118] In some embodiments, the infotainment system 610 may include a communication system, an entertainment system, and a navigation system, etc.

[0119] The perception system 620 may include several sensors for sensing information about the environment surrounding the vehicle 600. For example, the perception system 620 may include a global positioning system (which may be GPS, BeiDou, or other positioning systems), an inertial measurement unit (IMU), lidar, millimeter-wave radar, ultrasonic radar, and a camera device.

[0120] The decision control system 630 may include a computing system, a vehicle controller, a steering system, a throttle, and a braking system.

[0121] The drive system 640 may include components that provide powered motion to the vehicle 600. In one embodiment, the drive system 640 may include an engine, an energy source, a transmission system, and wheels. The engine may be one or a combination of internal combustion engines, electric motors, and compressed air engines. The engine is capable of converting energy provided by the energy source into mechanical energy.

[0122] Some or all of the functions of vehicle 600 are controlled by computing platform 650. Computing platform 650 may include at least one processor 651 and memory 652, processor 651 can execute instructions 653 stored in memory 652.

[0123] Processor 651 can be any conventional processor, such as a commercially available CPU. Processors may also include graphics processing units (GPUs), field-programmable gate arrays (FPGAs), systems-on-chips (SoCs), application-specific integrated circuits (ASICs), or combinations thereof.

[0124] The memory 652 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0125] In addition to instruction 653, memory 652 can also store data, such as road maps, route information, vehicle position, direction, speed, and other data. The data stored in memory 652 can be used by computing platform 650.

[0126] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”

[0127] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0128] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0129] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0130] In the above detailed description, reference has been made to the accompanying drawings, which illustrate specific aspects of this disclosure by way of illustration. In this regard, terms indicating direction or positional relationship, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” are used with reference to the orientation of the described figures. Since components of the described device can be positioned in multiple different orientations, directional terms are used for illustrative purposes and not for limitation. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concept of this disclosure. Therefore, the following detailed description should not be considered limiting.

[0131] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other. As used herein, the term “and / or” includes any one of the relevant listed items and any combination of any two or more; similarly, “at least one of…” includes any one of the relevant listed items and any combination of any two or more.

[0132] It should be understood that, unless otherwise expressly specified and limited, the terms "joining," "attaching," "installing," "connecting," "linking," "fixing," etc., used in the embodiments of this disclosure should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms herein based on the specific circumstances.

[0133] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A vehicle power distribution system, characterized in that, include: power supply; Multiple power distribution controllers, each power distribution controller being electrically connected to the power source; The load is electrically connected to at least two of the plurality of power distribution controllers; The power source is configured to output electrical energy, and each power distribution controller is configured to output electrical energy to the load electrically connected to the power distribution controller based on the electrical energy obtained from the power source.

2. The vehicle power distribution system according to claim 1, characterized in that, The power supply includes a first power supply and a second power supply, the first power supply and the second power supply have different output voltages, and each power distribution controller is electrically connected to at least one of the first power supply and the second power supply.

3. The vehicle power distribution system according to claim 2, characterized in that, The multiple power distribution controllers are electrically connected via a power distribution bus and form a chain topology. The first power distribution controller in the chain topology is electrically connected to the first power source, and the second power distribution controller in the chain topology is electrically connected to the second power source.

4. The vehicle power distribution system according to claim 2, characterized in that, Each power distribution controller includes a first interface and a second interface. The first interface of each power distribution controller is electrically connected to the first power supply, and / or the second interface of each power distribution controller is electrically connected to the second power supply.

5. The vehicle power distribution system according to claim 2, characterized in that, Each power distribution controller is also configured as follows: When the electrical energy obtained from the power source includes the electrical energy of the first power source and the electrical energy of the second power source, electrical energy with a higher output voltage is obtained from the electrical energy of the first power source and the electrical energy of the second power source. Based on the higher output voltage, electrical energy is output to the load electrically connected to the power distribution controller.

6. The vehicle power distribution system according to claim 1, characterized in that, The power source includes a battery pack with an output voltage higher than the supply voltage of the load. The vehicle power distribution system also includes a voltage converter, the input terminal of which is electrically connected to the battery pack, and the output terminal of which is electrically connected to each power distribution controller. The voltage converter is configured to adjust the voltage of the electrical energy output from the battery pack according to the supply voltage of the load, and output the electrical energy after adjusting the voltage. Each power distribution controller is configured to output electrical energy to a load electrically connected to the power distribution controller, based on the adjusted voltage obtained from the voltage converter.

7. The vehicle power distribution system according to claim 6, characterized in that, The battery pack includes a first battery and a second battery, the first battery and the second battery being electrically connected. The voltage converter includes a first voltage converter and a second voltage converter. The input terminal of the first voltage converter is electrically connected to the first battery and the second battery respectively, and the output terminal of the first voltage converter is electrically connected to each power distribution controller. The input terminal of the second voltage converter is connected to the first battery and the second battery respectively, and the output terminal of the second voltage converter is electrically connected to each power distribution controller.

8. The vehicle power distribution system according to claim 1, characterized in that, Each power distribution controller includes a protection circuit, which is configured to: disconnect the electrical connection between the power distribution controller and the corresponding load when a power distribution abnormality is detected, and restore the electrical connection between the power distribution controller and the corresponding load when the power distribution is restored to normal.

9. The vehicle power distribution system according to claim 1, characterized in that, The plurality of power distribution controllers include area controllers corresponding to different cabin areas of the vehicle.

10. The vehicle power distribution system according to any one of claims 1 to 9, characterized in that, The load includes the load in the vehicle's intelligent driving system.

11. The vehicle power distribution system according to claim 10, characterized in that, The loads in the intelligent driving system include at least one of the following: intelligent driving controller, steering system, braking system, and drive system.

12. A vehicle, characterized in that, include: The vehicle power distribution system as described in any one of claims 1 to 11.

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