CN222366120U - Multi-power system and vehicle - Google Patents

Abstract

The application relates to the field of automobiles, and discloses a multi-power-supply system and a vehicle. The multi-power system comprises a main power supply, at least one standby power supply, at least one anti-reverse control module, a power supply detection module, a main output circuit and a plurality of single-function output circuits. The main power supply can directly supply power through the main output circuit or the single-function output circuit; each standby power supply corresponds to each anti-reverse control module one by one, and the standby power supply can be connected with the corresponding anti-reverse control module and then connected with the output circuit, when the power supply detection module detects that the main power supply breaks down and the standby power supply is turned on, the power supply detection module can control the corresponding anti-reverse control module to be conducted, so that power is supplied through the standby power supply via the main output circuit or the single-function output circuit. Based on the scheme, a plurality of power supplies can be independently and respectively powered, so that the requirement of multiple complex power supplies is met.

Description

Multi-power-supply system and vehicle

Technical Field

The application relates to the field of automobiles, in particular to a multi-power system and a vehicle.

Background

In modern automobiles, with the promotion of vehicle functions and intelligent levels, the functions of respective vehicle body control units, which refer to functional modules responsible for controlling and managing vehicle body-related functions such as an airbag control unit, a reverse radar control unit, and the like, are generally managed and scheduled by a vehicle body domain controller.

At present, in order to ensure the normal operation of the vehicle body domain controller, a stable and reliable power supply is required to be provided for the vehicle body domain controller. Meanwhile, in order to avoid the problem of a single power supply and interrupt the work of the vehicle body domain controller, at least one standby power supply is also required to be configured in the vehicle so as to improve the running safety of the vehicle.

Disclosure of utility model

The application provides a multi-power supply system and a vehicle, which can realize independent and separate power supply of a plurality of power supplies and meet the complex power supply requirements.

The application provides a multi-power system which comprises a main power supply, at least one standby power supply, at least one anti-reverse control module, a power supply detection module, a main output circuit and a plurality of single-function output circuits, wherein the main power supply is respectively connected with the main output circuit and each single-function output circuit in the plurality of single-function output circuits, the main power supply is used for supplying power through the main output circuit and each single-function output circuit in the plurality of single-function output circuits, each standby power supply corresponds to each anti-reverse control module one by one, each standby power supply is respectively connected with the corresponding anti-reverse control module, each standby power supply is respectively connected with the main output circuit and each single-function output circuit in the plurality of single-function output circuits through the corresponding anti-reverse control module, each standby power supply is used for supplying power through each single-function output circuit in the main output circuit and each single-function output circuit under the condition that the corresponding anti-reverse control module is conducted, the detection module is respectively connected with the main power supply and each standby power supply, each detection module is used for detecting that the current power supply and each standby power supply in the main power supply and each standby power supply is controlled and each single-function output circuit is turned off.

In the present application, the main power source may be a main power source G1 mentioned later, the multi-power system mentioned in the present application may include at least one standby power source, for example, the standby power source may be a standby power source G2 and a standby power source G3 mentioned later, and in addition, the multi-power system mentioned in the present application may include at least one anti-back control module, for example, the anti-back control module may be an anti-back control module 1001 and an anti-back control module 1003 mentioned later, the power supply detection module may be a power supply detection module P1 mentioned later, the main output circuit may be an output circuit output1 mentioned later, and the single-function output circuit may be an output circuit output2 mentioned later.

It can be appreciated that in the embodiment of the present application, the anti-reverse control module and the standby power supply are connected in a one-to-one correspondence.

In the application, the main power supply can directly supply power through the output circuit, the standby power supply can be connected with the anti-reverse control module and then connected with the output circuit, and when the power supply detection module detects that the main power supply fails and the standby power supply is turned on, the power supply detection module can control the anti-reverse control module to be turned on, so that the standby power supply supplies power through the output circuit.

In one possible implementation, each anti-inversion control module in the at least one anti-inversion control module includes a first transistor, a second transistor, a third transistor, a fourth transistor and a first enabling control pin, wherein a source pin of the first transistor is connected with a source pin of the second transistor, a drain pin of the first transistor is connected with each standby power supply corresponding to each anti-inversion control module, a drain pin of the second transistor is connected with a main output circuit and each single-function output circuit in the plurality of single-function output circuits respectively, a collector pin of the third transistor is connected with a gate pin of the first transistor and a gate pin of the second transistor respectively, a base pin of the third transistor is connected with a collector pin of the fourth transistor, a base pin of the fourth transistor is connected with the first enabling control pin, and an emitter pin of the fourth transistor is grounded.

In the present application, the first transistor may be an N-metal-oxide-semiconductor (N-MOS) transistor, for example, an N-MOS transistor T101 or an N-MOS transistor T108 mentioned later, the second transistor may be an N-MOS transistor, for example, an N-MOS transistor T102 or an N-MOS transistor T109 mentioned later, the third transistor may be a PNP transistor, for example, a PNP transistor T103 or a PNP transistor T1010 mentioned later, and the fourth transistor may be an NPN transistor, for example, an NPN transistor T104 or an NPN transistor T1011 mentioned later. The first enable control pin may be the enable control pin EN2 or the enable control pin EN3 mentioned in the present application.

It will be appreciated that in the present application, the switching states of the first transistor and the second transistor may be controlled by the third transistor and the fourth transistor.

In one possible implementation, each anti-reverse control module further includes a fifth transistor and a first diode, wherein a collector pin of the fifth transistor is connected to a gate pin of the first transistor, an emitter pin of the fifth transistor is connected to a positive electrode of the first diode, a base pin of the fifth transistor is grounded, and a negative electrode of the first diode is connected to a source pin of the first transistor.

In the present application, the fifth transistor may be an NPN transistor, for example, an NPN transistor T1021 mentioned later, and the first diode may be a diode A7 mentioned later.

It can be understood that, in the present application, the fifth transistor and the first diode are connected to prevent reverse connection, so as to protect the standby power supply corresponding to the reverse protection control module.

In one possible implementation, the system includes a sixth transistor, a seventh transistor, and an eighth transistor, where a source pin of the sixth transistor is connected to the main power supply, drain pins of the sixth transistor are respectively connected to the main output circuit and each of the plurality of single-function output circuits, a gate pin of the sixth transistor is connected to a collector pin of the seventh transistor, a base pin of the seventh transistor is connected to a collector pin of the eighth transistor, a base pin of the eighth transistor is connected to the second enable control pin, and an emitter pin of the eighth transistor is grounded.

In the present application, the sixth transistor may be an N-MOS transistor, for example, may be an N-MOS transistor T105 mentioned later, the seventh transistor may be a PNP transistor, for example, may be a PNP transistor T106 mentioned later, the eighth transistor may be an NPN transistor, for example, may be an NPN transistor T107 mentioned later, and the second enable control pin may be an enable control pin EN1 mentioned in the present application.

It is understood that in the present application, the switching state of the sixth transistor can be controlled by the seventh transistor and the eighth transistor.

In one possible implementation, the power supply detection module includes a ninth transistor and a resistor module, wherein a base pin of the ninth transistor is connected to the third enable control pin, a collector pin of the ninth transistor is connected to a first end of the resistor module, and a second end of the resistor module is grounded.

In the present application, the ninth transistor may be a PNP transistor, for example, a PNP transistor T1012 mentioned later, and the third enable control pin may be an enable control pin EN4 mentioned in the present application.

In one possible implementation, each single-function output circuit of the plurality of single-function output circuits includes a function control module, and the function control module is used for supplying power through the corresponding single-function output circuit when the function control module is turned on, and includes a tenth transistor, an eleventh transistor, a twelfth transistor and a fourth enabling control pin, wherein a source pin of the tenth transistor is connected with the power receiving device, a drain pin of the tenth transistor is respectively connected with the main power supply and each standby power supply, a gate pin of the tenth transistor is connected with a collector pin of the eleventh transistor, a base pin of the eleventh transistor is connected with a collector pin of the twelfth transistor, a base pin of the twelfth transistor is connected with the fourth enabling control pin, and an emitter pin of the twelfth transistor is grounded.

In the present application, the function control module may be a function control module 1002 mentioned later, the tenth transistor may be an N-MOS transistor, for example, an N-MOS transistor T1015 mentioned later, the eleventh transistor may be a PNP transistor, for example, a PNP transistor T1016 mentioned later, the twelfth transistor may be an NPN transistor, for example, an NPN transistor T1017 mentioned later, and the fourth enable control pin may be an enable control pin EN6 mentioned in the present application.

It can be understood that in the application, under the condition that the function control module is conducted, some core functional elements in the vehicle can be independently powered, so that the running safety of the vehicle is improved.

In one possible implementation, the function control module further includes a thirteenth transistor and a fourteenth transistor, where the thirteenth transistor and the fourteenth transistor are used to control the tenth transistor when the fourth enable control pin fails, a collector pin of the thirteenth transistor is connected to a base pin of the twelfth transistor, an emitter pin of the thirteenth transistor is grounded, and a base pin of the thirteenth transistor is connected to a collector pin of the fourteenth transistor.

In the present application, the thirteenth transistor may be an NPN transistor, for example, an NPN transistor T1018 mentioned later, and the fourteenth transistor may be a PNP transistor, for example, an PNP transistor T1019 mentioned later.

In one possible implementation, the system further comprises a power supply collection module, a power supply detection module and a controller, wherein one end of the power supply collection module is connected with the main power supply and each standby power supply respectively, the other end of the power supply collection module is connected with the controller and used for supplying power to the controller, the power supply module is connected with the power supply collection module and used for supplying power to an external device, and the power supply detection module is connected with the power supply module and used for monitoring the power supply of the power supply module.

In one possible implementation, the system comprises a plurality of diodes, wherein the diodes are in one-to-one correspondence with the main power supply and the standby power supplies, anodes of the diodes are respectively connected with the corresponding main power supply and the standby power supplies, and cathodes of the diodes are connected with the power supply collecting module.

In a second aspect, the present application provides a vehicle, wherein the vehicle comprises the multiple power supply system mentioned in the present application.

The beneficial effects of the application are as follows:

According to the embodiment of the application, the anti-reverse control module is added, so that the standby power supply can be controlled to supply power to each functional module in the vehicle, the complex power supply requirements and power supply expansion are met, and meanwhile, the functional control module is added, so that some core functional elements in the vehicle can be independently supplied with power, and the running safety of the vehicle is improved.

Drawings

FIG. 1 shows a schematic diagram of a circuit frame structure of a multiple power supply system;

FIG. 2 is a schematic diagram showing a specific circuit configuration of a multi-power system;

FIG. 3 is a schematic diagram showing a specific circuit configuration of an anti-reverse control module in a multi-power system;

Fig. 4 shows a schematic diagram of a specific circuit structure of a functional control module in a multi-power system.

Reference numerals illustrate:

N1 is the source pin of the N-MOS transistor, N2 is the drain pin of the N-MOS transistor, N3 is the gate pin of the N-MOS transistor;

s1, a base pin of a PNP triode, S2, a collector pin of the PNP triode and S3, an emission set pin of the PNP triode;

S4 is a base electrode pin of the NPN triode, S5 is a collector electrode pin of the NPN triode, and S6 is an emission set pin of the NPN triode.

Detailed Description

Illustrative embodiments of the application include, but are not limited to, a multiple power system and vehicle.

It will be appreciated that in order to ensure the safety of the vehicle, it is generally necessary to install a main power supply and at least one backup power supply in the vehicle, and when one of the power supplies fails, the other power supplies may supply power to the body area controller or the functional element, so that the body area controller or the functional element may operate normally, and the safe driving of the vehicle is ensured.

In order to solve the problems of large power supply quantity and complex control in a vehicle, the application provides a multi-power supply system and the vehicle. In a multi-power system, there is a main power supply, at least one backup power supply, and a power detection module for detecting a power supply currently in operation. The standby power supply can be connected with the anti-reverse control module and then connected with the output circuit, and when the power supply detection module detects that the main power supply fails and the standby power supply is turned on, the power supply detection module can control the anti-reverse control module to be turned on, so that the standby power supply supplies power through the output circuit. Therefore, independent and separate power supply of multiple power supplies can be supported, and the power supply requirement is met.

Further, a main output circuit and a single function output circuit may be included in the output circuit of the multi-power system. The main output circuit is used for directly supplying power to the vehicle body domain controller through a power supply, and the single-function output circuit is used for independently supplying power to some core vehicle body control units in the vehicle through the power supply. The single-function output circuit is provided with a function control module, and when one of the vehicle body control units needs to be independently supplied with power, the function control module can be controlled to be conducted, so that current flows to the single vehicle body control unit. Therefore, the core functional elements in the vehicle can be independently powered, and the driving safety of the vehicle is improved.

Specifically, as shown in fig. 1, a main power supply G1, a standby power supply G2, a power supply detection module P1, a main output circuit output1, and a single-function output circuit output2 are included. When the power supply detection module P1 detects that the main power supply G1 fails and the standby power supply G2 is turned on, the power supply detection module P1 may control the anti-reverse control module 1001 to be turned on, so that power is supplied to the vehicle body domain controller and the single vehicle body control unit through the standby power supply G2 via the output circuit output1 or the output circuit output2.

In addition, in fig. 1, the single-function output circuit output2 further has a function control module 1002, and when power needs to be separately supplied to a certain vehicle body control unit, the function control module 1002 can be controlled to be turned on so that current flows to the single vehicle body control unit. Therefore, the core functional elements in the vehicle can be independently powered, and the driving safety of the vehicle is improved.

It should be understood that there may also be multiple standby power sources and multiple anti-backup control modules in the multi-power system, where the standby power sources are connected in a similar manner to the standby power source G2 in fig. 1, which is not limited in this regard.

It will also be appreciated that there may also be a plurality of single function output circuits in the multi-power supply system for separately powering other functional modules, wherein there is one functional control module in each single function output circuit. That is, the circuit structure of the single function output circuit is similar to that of the output circuit output2 in fig. 1, and the present application is not limited thereto.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

First, reference numerals mentioned in the present application will be explained:

n1 is the source pin of an N-type metal-oxide-semiconductor (N-MOS) transistor, N2 is the drain pin of an N-MOS transistor, and N3 is the gate pin of an N-MOS transistor.

S1 is a base pin of the PNP triode, S2 is a collector pin of the PNP triode, and S3 is an emitter pin of the PNP triode.

S4 is a base electrode pin of the NPN triode, S5 is a collector electrode pin of the NPN triode, and S6 is an emission set pin of the NPN triode.

Referring to fig. 2, fig. 2 is a schematic circuit diagram of a multi-power system with three power supplies according to an embodiment of the present application, wherein the multi-power system includes a power supply detection module P1, a main power supply G1, a standby power supply G2, and a standby power supply G3, and further includes a main output circuit output1 and a single-function output circuit output2.

As shown in fig. 2, the main power supply G1 is connected to the N-MOS transistor T105 (i.e., the sixth transistor mentioned above) and directly supplies power to the body domain controller or the single body control unit in the vehicle via the output circuit. Specifically, the main power supply G1 is connected to the pin N1 of the N-MOS transistor T105, and the pin N2 of the N-MOS transistor T105 may be directly connected to the output circuit output1 and the output circuit output 2. For example, pin N2 of N-MOS transistor T105 may be directly connected to the body domain controller, meaning that when N-MOS transistor T105 is turned on, power may be supplied to the body domain controller through main power supply G1.

In addition, the N-MOS transistor T105 also needs to be switch-controlled by two transistors. Specifically, the pin N3 of the N-MOS transistor T105 is further connected to the pin S2 of the PNP transistor T106 (i.e., the seventh transistor mentioned above), the pin S3 of the PNP transistor T106 is connected to the controller (i.e., the on-board computer (single board computer, SBC)) 1004, the pin S1 of the PNP transistor T106 is connected to the pin S5 of the NPN transistor T107 (i.e., the eighth transistor mentioned above), the pin S4 of the NPN transistor T107 is connected to the enable control pin EN1, and the pin S6 is grounded.

Through the circuit connection, when the enable control pin EN1 is controlled by the microcontroller (microcontroller unit, MCU) to input a high level to the NPN transistor T107, a current can flow to the PNP transistor T106 and then to the pin N3 of the N-MOS transistor T105, turning on the N-MOS transistor T105, and when the NPN transistor T107 is in a low level or off state, the N-MOS transistor T105 will be in an off state. When the power supply detection module P1 detects that the main power supply G1 fails, the standby power supply G2 can control the turn-off of the N-MOS transistor T105 through the NPN triode T107 when the standby power supply G2 is turned on, so that the reverse flow of the current from the pin N2 to the pin N1 to the main power supply G1 is avoided, and the protection circuit performs an anti-reaction function.

As another example, as shown in fig. 2, after the back-up control module 1001 needs to be connected, the standby power supply G2 supplies power to the body area controller or the single body control unit in the vehicle via the output circuit. The anti-inversion control module 1001 includes an N-MOS transistor T101 (i.e., the first transistor mentioned above), an N-MOS transistor T102 (i.e., the second transistor mentioned above), a PNP transistor T103 (i.e., the third transistor mentioned above), and an NPN transistor T104 (i.e., the fourth transistor mentioned above). When the N-MOS transistor is turned off, the current can only pass through in one direction, and when the N-MOS transistor is turned on, the current can pass through in two directions.

In fig. 2, the N-MOS transistor T101 and the N-MOS transistor T102 are connected in opposite directions. Specifically, the standby power supply G2 is connected to the pin N2 of the N-MOS transistor T101, the pin N1 of the N-MOS transistor T101 is connected to the pin N1 of the N-MOS transistor T102, and the pin N2 of the N-MOS transistor T102 is connected to the output circuit output1 and the output circuit output 2.

It should be appreciated that when the standby power supply G2 is not needed for power supply, both the N-MOS transistor T101 and the N-MOS transistor T102 are turned off, so that the N-MOS transistor T101 can only pass current in the left direction, and the N-MOS transistor T102 can only pass current in the right direction, resulting in that current cannot flow from the standby power supply G2 to the output circuit. In addition, when the standby power supply G2 is needed to supply power, both the N-MOS transistor T101 and the N-MOS transistor T102 are turned on, and current can pass through both the N-MOS transistor T101 and the N-MOS transistor T102 in both directions, so that current can flow from the standby power supply G2 to the output circuit, and thus, power can be supplied to the vehicle body domain controller or the vehicle body control unit through the output circuit output1 or the output circuit output2 by using the standby power supply G2.

In addition, in the anti-inversion control module 1001, the N-MOS transistor T101 and the N-MOS transistor T102 are controlled to be turned on and off by two transistors. Specifically, the pin S2 of the PNP transistor T103 is connected to the pin N3 of the N-MOS transistor T101 and the pin N3 of the N-MOS transistor T102, respectively, the pin S3 of the PNP transistor T103 is connected to the controller SBC1004, the pin S1 of the PNP transistor T103 is connected to the pin S5 of the NPN transistor T104, the pin S4 of the NPN transistor T104 is connected to the enable control pin EN2, and the pin S6 is grounded.

With the above circuit structure, if the power supply detection module P1 detects that the main power supply G1 fails, when the standby power supply G2 is turned on, the MCU may control the enable control pin EN2 to input a high level to the NPN transistor T104, so that current may flow to the PNP transistor T103, and then flow to the pin N3 of the N-MOS transistor T101 and the pin N3 of the N-MOS transistor T102, respectively, so that the N-MOS transistor T101 and the N-MOS transistor T102 are turned on. In this way, the on-off control of the N-MOS transistor T101 and the N-MOS transistor T102 can be realized by controlling the NPN transistor T104, so that power is supplied to the vehicle body domain controller or the vehicle body control unit through the standby power supply G2 via the output circuit output1 or the output circuit output2, thereby meeting the complex power supply requirement.

For another example, as shown in fig. 2, the standby power G3 needs to be connected to the anti-reverse control module 1003 and then connected to the output circuits output1 and output 2. The anti-reverse control module 1003 includes an N-MOS transistor T108, an N-MOS transistor T109, a PNP triode T1010 and an NPN triode T1011.

The standby power supply G3 is connected to the N-MOS transistor T108, and the N-MOS transistor T109 is connected to the N-MOS transistor T108 in the opposite direction and then to the output circuit. In addition, the PNP transistor T1010 is connected to the N-MOS transistor T108 and the N-MOS transistor T109, respectively, the PNP transistor T1010 is also connected to the controller SBC1004, and the NPN transistor T1011 is connected to the PNP transistor T1010.

If the power supply detection module P1 detects that the main power supply G1 fails, when the standby power supply G3 is turned on, a high level can be input to the NPN triode T1011 through the MCU control enable control pin EN3, so that the N-MOS transistor T108 and the N-MOS transistor T-109 are turned on, and power is supplied to the vehicle body domain controller or the vehicle body control unit through the standby power supply G3 via the output circuit output1 or the output circuit output2, thereby meeting complex power supply requirements.

It should be understood that the circuit structure of the standby power supply G3 is similar to that of the standby power supply G2 described above, and the description of the embodiment of the present application is omitted.

It should be understood that other more standby power sources may be included in the multi-power system according to the present application, where the circuit structure of the standby power source is similar to the circuit structure of the standby power source G2 described above, which is not limited in this embodiment of the present application.

In fig. 2, the output circuit output2 is also monitored via a detection line SW1 to determine whether a true power output is present. The detection circuit SW1 may be connected to the diode A4 and then connected to the power supply assembly module U1.

In addition, in the multi-power system shown in fig. 2, a power supply detection module P1 is connected to the main power supply G1, the standby power supply G2, and the standby power supply G3, respectively, and is configured to detect and control a power supply currently in use. For example, when the main power supply G1 is detected to fail, the standby power supply G2 is turned on, the enable control pin EN2 may be controlled to input a high level to the NPN triode T104, so as to turn on the N-MOS transistor T101 and the N-MOS transistor T102, so that power is supplied to the vehicle body domain controller or the vehicle body control unit through the standby power supply G2 via the output circuit output1 or the output circuit output2, and meanwhile, when the standby power supply G2 is used for supplying power, the power supply detection module P1 also needs to control the enable control pin EN1 to input a low level to the NPN triode T107, so that the N-MOS transistor T105 is turned off, and a reverse current is prevented from flowing to the main power supply G1, thereby achieving the function of the anti-reverse protection circuit.

As shown in fig. 2, a PNP transistor T1012 (i.e., the ninth transistor mentioned above) is present in the power detection module P1, wherein the MCU can make the power detection module operate normally by inputting a high level to the pin S1 of the PNP transistor T1012 through the control enable control pin EN4 (i.e., the third enable control pin mentioned above). In addition, the pin S2 of the PNP transistor T1012 is connected to the resistor R1, and the resistor R1 is connected to the resistor R2 and then grounded.

In the multi-power system mentioned in the present application, it is also necessary to supply power to the controller SBC1004 so that the controller SBC1004 can operate normally. Specifically, the power supply collection module U1 may be connected to the controller SBC1004, and input normal power to the controller SBC 1004. The main power supply G1 can be connected with the diode A1 and then connected with the power supply collection module U1, the standby power supply G2 can be connected with the diode A2 and then connected with the power supply collection module U1, and the standby power supply G3 can be connected with the diode A3 and then connected with the power supply collection module U1. Each power supply is connected with the positive electrode of the corresponding diode, and the negative electrode of the diode is connected with the power supply collection module U1, so that the power supply can be used for an anti-reverse connection protection circuit. In addition, when any power source is operating normally, the power collection module U1 may output normal power to power the controller SBC1004 so that the controller SBC1004 operates.

In addition, in the multi-power system shown in fig. 2, power may be supplied to external devices of some vehicles. Specifically, the power supply module U2 is connected to the PNP triode T1030 and then connected to the power supply assembly module U1, so that the power supply module U2 can supply power to some external devices, and the power supply detection module U3 is connected to the power supply module U2 and can be used for monitoring a power supply input to the external devices.

In fig. 2, a PNP transistor T1013 and an NPN transistor T1014 can be connected to detect a power supply supplying power to the controller SBC 1004. The specific circuit structure is that the power supply collection module U1 is also connected with a pin S3 of the PNP triode T1013, a pin S2 of the PNP triode T1013 is connected with a diode A5 and then is connected with the controller SBC1004, a pin S1 of the PNP triode T1013 is connected with a pin S5 of the NPN triode T1014, a pin S6 of the NPN triode T1014 is grounded, and a pin S4 of the NPN triode T1014 is connected with an enabling control pin EN 5. Wherein, by connecting PNP transistor T1013 and NPN transistor T1014 can be used to detect the power source supplying power to controller SBC 1004.

As shown in fig. 2, each power supply (main power supply G1, standby power supply G2, standby power supply G3) may directly supply power to the vehicle body domain controller through the output circuit output 1.

As shown in fig. 2, the multi-power system further includes a single-function output circuit output2, through which the power supply can individually supply power to some of the core body control units in the vehicle. The output circuit output2 has a function control module 1002 therein. The function control module 1002 includes an N-MOS transistor T1015 (i.e., the tenth transistor mentioned above), a PNP transistor T1016 (i.e., the eleventh transistor mentioned above), an NPN transistor T1017 (i.e., the twelfth transistor mentioned above), an NPN transistor T1018 (i.e., the thirteenth transistor mentioned above), and a PNP transistor T1019 (i.e., the fourteenth transistor mentioned above).

In the function control module 1002, when the N-MOS transistor T1015 is turned on, power can be supplied to the vehicle body control unit individually by each power supply via the output circuit output 2. Specifically, the pin N1 of the N-MOS transistor T1015 may be connected to each vehicle body control unit, and the pin N2 of the N-MOS transistor T1015 may be connected to the pin N2 of the N-MOS transistor T102, the pin N2 of the N-MOS transistor T105, and the pin N2 of the N-MOS transistor T109, respectively, to indicate that when the N-MOS transistor T1015 is turned on, a current may flow from the power source through the N-MOS transistor T1015, i.e., power may be supplied to the vehicle body function module.

The function control module 1002 shown in fig. 2 further includes a PNP transistor T1016 and an NPN transistor T1017, and the PNP transistor T1016 and the NPN transistor T1017 control the switching of the N-MOS transistor T1015. The circuit is specifically connected in such a way that a pin N3 of the N-MOS transistor T1015 is connected with a pin S2 of the PNP triode T1016, the pin S3 of the PNP triode T1016 is connected with the controller SBC1004, a pin S1 of the PNP triode T1016 is connected with a resistor R3 and then is connected with the controller SBC, a pin S1 of the PNP triode T1016 can also be connected with a pin S5 of the NPN triode T1017, a resistor R4 is connected between a pin S4 of the NPN triode T1017 and a pin S6 of the NPN triode T1017, a pin S6 of the NPN triode T1017 is grounded, a pin S4 of the NPN triode T1017 is connected with a resistor R5, one end of the resistor R5 is connected with an enable control pin EN6 (namely the fourth enable control pin mentioned above), and the other end of the resistor R5 is connected with the resistor R4.

In addition, in the function control module 1002, if the enable control pin EN6 is damaged, the N-MOS transistor T1015 may be forcibly turned off by the NPN transistor T1018. The circuit is specifically connected in such a way that a pin S4 of an NPN triode T1017 is connected with a pin S5 of an NPN triode T1018 through a resistor R5, a pin S6 of the NPN triode T1018 is grounded, the pin S4 of the NPN triode T1018 is grounded after being connected with the resistor R6, meanwhile, the pin S4 of the NPN triode T1018 is connected with a pin S2 of a PNP triode T1019, a pin S1 of the PNP triode T1019 is connected with a controller SBC1004, and a pin S3 of the PNP triode T1019 is reversely connected with a diode A6.

In the function control module 1002, by enabling the control pin EN6 and the controller SBC, the N-MOS transistor T1015 may be controlled to be turned on, and a current may be supplied from a power source through the N-MOS transistor T1015, i.e., a single function module of the vehicle may be supplied with power.

It should be understood that multiple single-function output circuits may also be included in the multi-power system, where the circuit structure of the function control module in each single-function output circuit is similar to the circuit structure of the function control module 1002 in the single-function output circuit output2 described above, which is not limited by the embodiment of the present application.

The multi-power supply system can realize independent power supply of multiple power supplies to meet power supply requirements, simultaneously, can independently supply power to core functional elements in a vehicle to improve the running safety of the vehicle, and can expand one or more standby power supplies to realize power supply expansion requirements.

Referring to fig. 3, a specific circuit structure of the anti-back control module according to the embodiment of the present application will be described by taking the anti-back control module 1001 as an example. The anti-back control module 1001 includes an N-MOS transistor T101, an N-MOS transistor T102, a PNP transistor T103, an NPN transistor T104, and an NPN transistor T1021 (i.e., the fifth transistor mentioned above).

In fig. 3, the N-MOS transistor T101 and the N-MOS transistor T102 are connected in opposite directions. Specifically, the standby power supply G2 is connected to the pin N2 of the N-MOS transistor T101, the pin N1 of the N-MOS transistor T101 is connected to the pin N1 of the N-MOS transistor T102, and the pin N2 of the N-MOS transistor T102 is connected to the output circuit.

It should be appreciated that when the standby power supply G2 is not needed for power supply, both the N-MOS transistor T101 and the N-MOS transistor T102 are turned off, so that the N-MOS transistor T101 can only pass current in the left direction, and the N-MOS transistor T102 can only pass current in the right direction, resulting in that current cannot flow from the standby power supply G2 to the output circuit. In addition, when the standby power supply G2 is needed to supply power, both the N-MOS transistor T101 and the N-MOS transistor T102 are turned on, and current can pass through both the N-MOS transistor T101 and the N-MOS transistor T102 in both directions, so that current can flow from the standby power supply G2 to the output circuit, and thus power can be supplied to the vehicle body domain controller or the vehicle body control unit through the standby power supply G2.

In addition, in the anti-inversion control module 1001, the N-MOS transistor T101 and the N-MOS transistor T102 are controlled to be turned on and off by two transistors. Specifically, the pin S2 of the PNP transistor T103 is connected to the pin N3 of the N-MOS transistor T101 and the pin N3 of the N-MOS transistor T102, the pin S3 of the PNP transistor T103 is connected to the controller SBC1004, the pin S1 of the PNP transistor T103 is connected to the resistor R7 and then to the pin S5 of the NPN transistor T104, the pin S4 of the NPN transistor T104 is connected to the resistor R8 and then to the enable control pin EN2, and the pin S6 is connected to the resistor R9 and then to ground.

In addition, some circuit elements can be added in the multi-power supply system to facilitate testing. For example, a circuit can be debugged and tested between pin S1 of PNP transistor T103 and pin S3 of PNP transistor T103 by connecting resistor R100 as a test point. Pin S4 of NPN transistor T104 may also be connected to resistor R101 as a test point for debugging and testing the circuit.

It should be understood that, if the power supply detection module P1 detects that the main power supply G1 fails, when the standby power supply G2 is turned on, the enable control pin EN2 may be controlled by the MCU to input a high level to the NPN transistor T104, so that a current may flow to the PNP transistor T103, and then flow to the pin N3 of the N-MOS transistor T101 and the pin N3 of the N-MOS transistor T102, respectively, so that the N-MOS transistor T101 and the N-MOS transistor T102 are turned on. In this way, the NPN triode T104 can be controlled to realize the switching control of the N-MOS transistor T101 and the N-MOS transistor T102, so that the standby power supply G2 can supply power to each functional module in the vehicle, and the complex power supply requirement is satisfied.

In addition, in the anti-reverse control module 1001, an NPN transistor T1021 and a diode A7 (i.e., the first diode mentioned above) are also included for the anti-reverse circuit. The pin S5 of the NPN triode T1021 is connected with the pin N3 of the N-MOS transistor T101, the pin S4 of the NPN triode T1021 is connected with the resistor R10 and then grounded, the pin S6 of the NPN triode T1021 is connected with the anode of the diode A7, and the cathode of the diode A7 is connected with the pin N1 of the N-MOS transistor T101. The NPN triode T1021 and the diode A7 can be used for preventing the standby power supply G2 from being reversely connected with the ground, so as to protect the circuit.

A parallel resistor R11, a parallel capacitor C1 and a parallel diode A8 may also be provided between pin N1 of the N-MOS transistor T101 and pin N3 of the N-MOS transistor T101.

In this way, by connecting the backup power supply G2 to the anti-reverse control module 1001, the backup power supply G2 can be used to supply power to each functional module in the vehicle. Meanwhile, in the multi-power system, one or more standby power supplies can be included, and each standby power supply can be respectively connected with the anti-reverse control module to realize the expansion requirement of the power supply.

Referring to fig. 4, a specific circuit structure of the function control module according to the embodiment of the present application will be described by taking the above-mentioned function control module 1002 as an example.

In fig. 4, the function control module 1002 includes an N-MOS transistor T1015, a PNP transistor T1016, an NPN transistor T1017, and an NPN transistor T1018. When the N-MOS transistor T1015 is turned on, a current may flow from the power source through the N-MOS transistor T1015, i.e., may supply power to the functional modules of the vehicle individually.

Specifically, the circuit connection is such that the pin N1 of the N-MOS transistor T1015 may be connected to each body control unit, and the pin N2 of the N-MOS transistor T1015 may be connected to the input circuit. In addition, a capacitor C2 may be connected in parallel between the input circuit and the N-MOS transistor T1015 and connected to ground. A resistor R12 may be connected between the pin N1 of the N-MOS transistor T1015 and the pin N2 of the N-MOS transistor T1015, a diode A9 may be connected between the pin N1 of the N-MOS transistor T1015 and the pin N3 of the N-MOS transistor T1015, a resistor R13 may be connected between the pin N1 of the N-MOS transistor T1015 and the pin N3 of the N-MOS transistor T1015, and a capacitor C3, a capacitor C4, a bidirectional transient suppression diode D1 may be connected between the pin N1 of the N-MOS transistor T1015 and the output circuit, and grounded, respectively.

In addition, the function control module 1002 further includes a PNP transistor T1016 and an NPN transistor T1017, and the PNP transistor T1016 and the NPN transistor T1017 control the switching of the N-MOS transistor T1015. The circuit is specifically connected in such a way that a pin N3 of an N-MOS transistor T1015 is connected with a pin S2 of a PNP triode T1016, the pin S3 of the PNP triode T1016 is connected with a controller SBC1004, a pin S1 of the PNP triode T1016 is connected with a pin S5 of an NPN triode T1017 after being connected with a resistor R14, a pin S6 of the NPN triode T1017 is connected with a resistor R15 and then grounded, a pin S4 of the NPN triode T1017 is connected with an enable control pin EN6 after being connected with a resistor R16, and a pin S4 of the NPN triode T1017 is also connected with a resistor R17 and then grounded.

In addition, the circuit can be debugged and tested between pin S1 of PNP transistor T1016 and pin S3 of PNP transistor T1016 by connecting resistor R18 as a test point.

In the function control module 1002, the N-MOS transistor T1015 may be controlled to be turned on by enabling the control pin EN6, and a current may be supplied from a power source through the N-MOS transistor T1015, i.e., a power may be supplied to a function module of the vehicle.

In addition, in the function control module 1002, if the enable control pin EN6 is damaged, the N-MOS transistor T1015 may be forcibly turned off by the NPN transistor T1018. The specific connection mode of the circuit is as follows, the pin S4 of the NPN triode T1017 is further connected with the pin S5 of the NPN triode T1018, the pin S4 of the NPN triode T1018 is connected with the enable control pin EN8 after being connected with the resistor R19, the resistor R20 is connected between the pin S4 of the NPN triode T1018 and the pin S6 of the NPN triode T1018, and the pin S6 of the NPN triode T1018 is grounded.

When the enable control pin EN6 fails, the NPN triode T1018 is turned on by the controller SBC1004 through the enable control pin EN8, which causes the PNP triode T1016 and NPN triode T1017 to be forcibly turned off, thereby turning off the N-MOS transistor T1015, and thus interrupting the power output to the single function module.

It should be understood that the multiple power system may further include a plurality of functional control modules for respectively delivering power to each single functional module, where each functional control module has a circuit structure similar to that of the functional control module 1002 in the single functional output circuit output2 described above, which is not limited by the embodiment of the present application.

The multi-power supply system can realize independent and separate power supply of a plurality of power supplies to meet power supply requirements, simultaneously, can independently supply power to some core functional elements in the vehicle to improve the running safety of the vehicle, and can support expansion of one or more standby power supplies to realize power supply expansion requirements.

In some embodiments, the present application also provides a vehicle comprising the above-mentioned multiple power system.

The foregoing is merely illustrative of the present application, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. While the description of the application has been presented in connection with certain embodiments, it is not intended to limit the inventive features to only this embodiment. Rather, the purpose of the present application is to cover other alternatives or modifications, which may be extended by the claims based on the application. The foregoing description of embodiments contains many specific details, for the purpose of providing a thorough understanding of the present application. The application may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the application. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

It is understood that the connection relationships described in this disclosure refer to direct or indirect connections. For example, the connection between a and B may be a direct connection between a and B, or an indirect connection between a and B through one or more other electrical components, for example, a direct connection between a and C, and a direct connection between C and B, so that a connection between a and B is achieved through C. It is also understood that "a connection B" as described herein may be a direct connection between a and B, or an indirect connection between a and B via one or more other electrical components.

In the description of the present application, the words "first", "second", "third", etc. are used merely to distinguish different objects, and are not limited in number and order of execution, and the words "first", "second", "third", etc. are not necessarily different. Furthermore, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.

In the description of the embodiments of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.

While the application has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the application.

Claims (10)

1. A multi-power system is characterized by comprising a main power supply, at least one standby power supply, at least one anti-reverse control module, a power supply detection module, a main output circuit and a plurality of single-function output circuits, wherein,

The main power supply is respectively connected with the main output circuit and each single-function output circuit in the plurality of single-function output circuits, and is used for supplying power through the main output circuit and each single-function output circuit in the plurality of single-function output circuits;

Each standby power supply in the at least one standby power supply corresponds to each anti-reverse control module in the at least one anti-reverse control module one by one, and each standby power supply is connected with the corresponding anti-reverse control module respectively;

each standby power supply is respectively connected with the main output circuit and each single-function output circuit in the plurality of single-function output circuits through the corresponding anti-reverse control module, and is used for supplying power through the main output circuit and each single-function output circuit in the plurality of single-function output circuits under the condition that the corresponding anti-reverse control module is conducted;

The power supply detection module is respectively connected with the main power supply and each standby power supply, and is used for detecting the current available power supply in the main power supply and each standby power supply and controlling the anti-reverse control module corresponding to each standby power supply to be turned on or turned off.

2. The system of claim 1, wherein each anti-reflection control module of the at least one anti-reflection control module comprises a first transistor, a second transistor, a third transistor, a fourth transistor, and a first enable control pin, wherein,

A source pin of the first transistor is connected with a source pin of the second transistor;

The drain electrode pin of the first transistor is connected with each standby power supply corresponding to each anti-reverse control module;

The drain electrode pin of the second transistor is respectively connected with the main output circuit and each single-function output circuit in the plurality of single-function output circuits;

a collector pin of the third transistor is respectively connected with a gate pin of the first transistor and a gate pin of the second transistor;

A base pin of the third transistor is connected with a collector pin of the fourth transistor;

the base pin of the fourth transistor is connected with the first enabling control pin;

And an emitter pin of the fourth transistor is grounded.

3. The system of claim 2, wherein each anti-backup control module of the at least one anti-backup control module further comprises a fifth transistor and a first diode, wherein,

A collector pin of the fifth transistor is connected with a gate pin of the first transistor;

an emitter pin of the fifth transistor is connected with the positive electrode of the first diode;

the base pin of the fifth transistor is grounded;

the cathode of the first diode is connected with the source pin of the first transistor.

4. The system of claim 1, wherein the system comprises a sixth transistor, a seventh transistor, and an eighth transistor, wherein,

The source pin of the sixth transistor is connected with the main power supply;

The drain electrode pin of the sixth transistor is respectively connected with the main output circuit and each single-function output circuit in the plurality of single-function output circuits;

A gate pin of the sixth transistor is connected with a collector pin of the seventh transistor;

A base pin of the seventh transistor is connected with a collector pin of the eighth transistor;

The base pin of the eighth transistor is connected with a second enabling control pin;

An emitter pin of the eighth transistor is grounded.

5. The system of claim 1, wherein the power detection module comprises a ninth transistor and a resistor module, wherein,

A base pin of the ninth transistor is connected with a third enabling control pin;

The collector pin of the ninth transistor is connected with the first end of the resistor module;

the second end of the resistor module is grounded.

6. The system of claim 1, wherein each of the plurality of single function output circuits includes a function control module therein for providing power through the corresponding single function output circuit when the function control module is on, and

The function control module comprises a tenth transistor, an eleventh transistor, a twelfth transistor and a fourth enabling control pin, wherein,

A source pin of the tenth transistor is connected with the electric energy receiving device;

the drain electrode pin of the tenth transistor is respectively connected with the main power supply and the standby power supplies;

A gate pin of the tenth transistor is connected to a collector pin of the eleventh transistor;

A base pin of the eleventh transistor is connected with a collector pin of the twelfth transistor;

the base pin of the twelfth transistor is connected with the fourth enabling control pin;

An emitter pin of the twelfth transistor is grounded.

7. The system of claim 6, wherein the functional control module further comprises a thirteenth transistor and a fourteenth transistor;

The thirteenth transistor and the fourteenth transistor are used for controlling the tenth transistor when the fourth enable control pin fails,

A collector pin of the thirteenth transistor is connected to a base pin of the twelfth transistor;

an emitter pin of the thirteenth transistor is grounded;

The base pin of the thirteenth transistor is connected to the collector pin of the fourteenth transistor.

8. The system of claim 1, further comprising a power aggregation module, a power supply module, a power detection module, and a controller, wherein,

One end of the power supply collection module is respectively connected with the main power supply and each standby power supply, and the other end of the power supply collection module is connected with the controller and is used for supplying power to the controller;

the power supply module is connected with the power supply collection module and is used for supplying power to external equipment;

The power supply detection module is connected with the power supply module and is used for monitoring the power supply of the power supply module.

9. The system of claim 8, wherein the system comprises a plurality of diodes, wherein,

The diodes are in one-to-one correspondence with the main power supply and each standby power supply in the at least one standby power supply, and the anodes of the diodes are respectively connected with the corresponding main power supply and each standby power supply in the at least one standby power supply;

And the cathode of each diode in the plurality of diodes is connected with the power supply collection module.

10. A vehicle, characterized in that it comprises a multiple power supply system according to any one of claims 1-9.