CN112104050B

CN112104050B - Vehicle-mounted charger control framework, vehicle-mounted charger and vehicle

Info

Publication number: CN112104050B
Application number: CN202010765522.6A
Authority: CN
Inventors: 胡艳军; 李东; 刘卫平; 刘韧
Original assignee: Huawei Digital Power Technologies Co Ltd
Current assignee: Huawei Electric Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2022-07-19
Anticipated expiration: 2040-07-31
Also published as: CN112104050A; CN115313592A

Abstract

The embodiment of the application provides a vehicle-mounted charger control framework includes: the device comprises an AC-DC converter, a first DC-DC converter, a second DC-DC converter, a storage battery, a power distribution unit PDU and a control module. The control framework of the vehicle-mounted charger provided by the embodiment of the application is simple and efficient, and various functions can be realized through the control module. If a new function needs to be added, only the internal algorithm of the control module needs to be adjusted and the corresponding circuit module needs to be matched, so that diversified user requirements can be met more easily. The embodiment of the application further provides a corresponding vehicle-mounted charger and a vehicle.

Description

Vehicle-mounted charger control framework, vehicle-mounted charger and vehicle

Technical Field

The embodiment of the application relates to the technical field of vehicles, in particular to a vehicle-mounted charger control framework, a vehicle-mounted charger and a vehicle.

Background

The new energy automobile has the advantages of energy conservation and emission reduction, and is highly valued by governments and enterprises of various countries. The new energy automobile can realize the running function by driving the motor through the power battery. The charger is divided into a vehicle-mounted charger and a non-vehicle-mounted charger according to whether the charger is mounted on the vehicle.

The vehicle-mounted charger needs to meet various user requirements. For example, the on-board charger can charge the rechargeable battery, and can also charge the storage battery on the vehicle to supply power to the electronic devices and the vehicle-on-board system. The vehicle-mounted charger also needs to be capable of realizing multiple charging modes such as normal charging and quick charging for the power battery. In some cases, the vehicle-mounted charger needs to have a reverse charging function, that is, the power battery charges an alternating current source connected to the vehicle-mounted charger.

However, the current vehicle-mounted charger only needs three controllers for normal charging and reverse charging. To realize more functions, only more controllers can be added, and the cooperative working logic is complex and the real-time performance is poor.

Disclosure of Invention

The embodiment of the application provides a vehicle-mounted charger control framework, a vehicle-mounted charger and a vehicle, and is used for solving the technical problems that when various user demands are met by the current vehicle-mounted charger, the number of controllers is large, cooperative work logic is complex, and instantaneity is poor.

In a first aspect, an embodiment of the present application provides a vehicle-mounted charger control architecture, including: an AC-to-DC ACDC converter, a first end of the ACDC converter being coupled to an AC source; a first DC-to-DC (direct current-to-direct current) converter, wherein a first end of the first DCDC converter is coupled with a second end of the ACDC converter, and a second end of the first DCDC converter is coupled with a power battery; the control module is coupled with control ends of the ACDC converter and the first DCDC converter and used for controlling the ACDC converter and the first DCDC converter to realize a charging function of the alternating current source on the power battery or realize a reverse charging function of the power battery on the alternating current source; the power battery is coupled with the storage battery through the second DCDC converter; the control module is coupled with the second DCDC converter and used for controlling the second DCDC converter to realize the function of charging the storage battery by the power battery; the power distribution unit PDU is used for coupling the direct current source with the power battery; the control module is coupled with the PDU and used for controlling the PDU to realize the function of rapidly charging the power battery by the direct current source. In the embodiment of the application, the control structure of the vehicle-mounted charger is simple and efficient, and various functions can be realized through the control module. If a new function needs to be added, only the internal algorithm of the control module needs to be updated and the corresponding circuit module needs to be added, so that diversified user requirements can be met more easily.

With reference to the first aspect, in one possible implementation manner, the control module includes a first controller, a second controller, and a third controller; the first controller is coupled with control ends of the ACDC converter and the first DCDC converter and is used for controlling the ACDC converter and the first DCDC converter to realize a function of charging the power battery by the alternating current source or a function of reversely charging the alternating current source by the power battery; the second controller is coupled with the second DCDC converter and is used for controlling the second DCDC converter to realize the function of charging the storage battery by the power battery; and the third controller is coupled with the PDU and is used for controlling the PDU to realize the function of rapidly charging the power battery by the direct-current source.

With reference to the first aspect, in a possible implementation manner, the first controller is coupled to the second controller and the third controller respectively, and configured to cooperate with each other; or the second controller is respectively coupled with the first controller and the third controller for cooperative work; or the third controller is respectively coupled with the first controller and the second controller for cooperative work; or the control module further comprises a fourth controller, and the fourth controller is coupled with the first controller, the second controller, and the third controller respectively, and is configured to cooperate with the first controller, the second controller, and the third controller.

With reference to the first aspect, in one possible implementation manner, the control module includes a first controller and a second controller; the first controller is coupled with control terminals of the ACDC converter and the first DCDC converter and used for controlling the ACDC converter and the first DCDC converter to realize a charging function of the alternating current source on the power battery or realize a reverse charging function of the power battery on the alternating current source; the second controller is coupled with the second DCDC converter and used for controlling the second DCDC converter to realize the function of charging the storage battery by the power battery; the second controller is further coupled with the PDU and is further used for controlling the PDU to realize the function of rapidly charging the power battery by the direct-current source.

With reference to the first aspect, in one possible implementation manner, the control module includes a first controller and a second controller; the first controller is coupled with control ends of the ACDC converter and the first DCDC converter and is used for controlling the ACDC converter and the first DCDC converter to realize a function of charging the power battery by the alternating current source or a function of reversely charging the alternating current source by the power battery; the first controller is further coupled with the second DCDC converter and is further used for controlling the second DCDC converter to realize the function of charging the storage battery by the power battery; the second controller is coupled with the PDU and used for controlling the PDU to realize the function of rapidly charging the power battery by the direct current source.

With reference to the first aspect, in one possible implementation manner, the control module includes a first controller and a second controller; the first controller is coupled with control terminals of the ACDC converter and the first DCDC converter and used for controlling the ACDC converter and the first DCDC converter to realize a charging function of the alternating current source on the power battery or realize a reverse charging function of the power battery on the alternating current source; the second controller is coupled with the second DCDC converter and used for controlling the second DCDC converter to realize the function of charging the storage battery by the power battery; the first controller is further coupled with the PDU and is further used for controlling the PDU to realize the function of rapidly charging the power battery by the direct-current source.

With reference to the first aspect, in a possible implementation manner, the first controller and the second controller are coupled to cooperate with each other; or the control module further comprises a third controller, and the third controller is respectively coupled with the first controller and the second controller and used for cooperative work.

With reference to the first aspect, in a possible implementation manner, the ACDC converter includes a first full-bridge rectification circuit composed of a first switching tube, a second switching tube, a third switching tube, and a fourth switching tube, and a second full-bridge rectification circuit composed of a fifth switching tube, a sixth switching tube, a seventh switching tube, and an eighth switching tube; the first full-bridge rectification circuit and the second full-bridge rectification circuit are coupled.

With reference to the first aspect, in a possible implementation manner, a first filter capacitor is connected in parallel at a coupling position of the first full-bridge rectification circuit and the second full-bridge rectification circuit.

With reference to the first aspect, in a possible implementation manner, the first DCDC converter includes a third full-bridge rectification circuit that is composed of a first transformer, a ninth switching tube, a tenth switching tube, an eleventh switching tube, and a twelfth switching tube; one end of the first transformer is coupled with the second end of the ACDC converter, and the other end of the first transformer is coupled with the first end of the third full-bridge rectifying circuit; the second end of the third full-bridge rectification circuit is coupled with the power battery.

With reference to the first aspect, in a possible implementation manner, a second filter capacitor is connected in parallel to a coupling position of the second end of the third full-bridge rectification circuit and the power battery.

With reference to the first aspect, in a possible implementation manner, the second DCDC converter includes a fourth full-bridge rectification circuit composed of a thirteenth switching tube, a fourteenth switching tube, a fifteenth switching tube, and a sixteenth switching tube, a second transformer, a first diode, a second diode, an inductor, and a third capacitor; one end of the fourth full-bridge rectification circuit is coupled with the power battery, and the other end of the fourth full-bridge rectification circuit is coupled with the first end of the second transformer; a second terminal of the second transformer is coupled to the battery through the first diode and the inductor; the winding midpoint of the second end of the second transformer is coupled with the first end of the second diode, and the second end of the second diode is coupled with the coupling position of the storage battery and the first diode; the third capacitor is connected with the storage battery in parallel.

With reference to the first aspect, in a possible implementation manner, the ACDC converter is a bidirectional ACDC converter or a unidirectional ACDC converter; the first DCDC converter is a bidirectional DCDC converter or a unidirectional DCDC converter; the second DCDC converter is a bidirectional DCDC converter or a unidirectional DCDC converter.

In a second aspect, an embodiment of the present application provides a vehicle-mounted charger, where the vehicle-mounted charger includes the vehicle-mounted charger control architecture according to the first aspect.

In a third aspect, an embodiment of the present application provides a vehicle, where the vehicle interior includes the vehicle-mounted charger according to the second aspect.

Drawings

Fig. 1 is a schematic diagram of a first embodiment of an onboard charger control architecture provided in the present application;

fig. 2 is a schematic diagram of a second embodiment of an on-vehicle charger control architecture provided in the present application;

fig. 3 is a schematic diagram of a third embodiment of an onboard charger control architecture provided in the present application;

fig. 4 is a schematic diagram of a fourth embodiment of an on-vehicle charger control architecture provided in the present application;

fig. 5 is a schematic diagram of a fifth embodiment of an onboard charger control architecture provided in the present application;

fig. 6 is a schematic diagram of a sixth embodiment of an onboard charger control architecture provided by the present application;

Fig. 7 is a schematic diagram of a seventh embodiment of an on-vehicle charger control architecture provided by the present application;

fig. 8 is a schematic diagram of an eighth embodiment of an onboard charger control architecture provided by the present application;

fig. 9 is a schematic diagram of a ninth embodiment of an on-vehicle charger control architecture provided by the present application;

FIG. 10 is a schematic diagram illustrating an application of the present application to provide an in-vehicle charger control architecture;

fig. 11 is a schematic view of a vehicle according to an embodiment of the present application.

Detailed Description

The embodiment of the application provides a vehicle-mounted charger control framework, a vehicle-mounted charger and a vehicle, and is used for solving the technical problems that when the existing vehicle-mounted charger meets diversified user requirements, the number of controllers is large, cooperative work logic is complex, and instantaneity is poor.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "corresponding" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The new energy automobile has the advantages of energy conservation and emission reduction, and is highly valued by governments and enterprises of various countries. As a conversion device for connecting a power grid and a power battery, the efficient and flexible vehicle-mounted charger can directly influence the customer experience.

In order to reduce the size of the charger and save cost and space, the existing vehicle-mounted charger mostly adopts two-in-one and three-in-one design. The two-in-one design integrates an On Board Charger (OBC) and a DCDC module. On the basis of the two-in-one design, a Power Distribution Unit (PDU) is added, namely the three-in-one design.

However, in the existing two-in-one design or three-in-one design, the control system is complex, the logic architecture is not conducive to popularization, and the system flexibility is poor.

In view of this, the embodiment of the application provides a vehicle-mounted charger control architecture, a vehicle-mounted charger and a vehicle, which are used for solving the technical problems that when the current vehicle-mounted charger meets diversified user requirements, the number of controllers is large, the cooperative working logic is complex, and the real-time performance is poor.

Example one

Fig. 1 is a schematic diagram of a first embodiment of an on-vehicle charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the device comprises an alternating current-to-direct current ACDC converter, a first direct current-to-direct current DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct current power supply, an alternating current side power supply and a control module.

In this application embodiment, the ac side power supply may be a power supply such as a power grid, a charging pile, a photovoltaic cell panel, or other types of power supplies or a combination of multiple types of power supplies in practical application. It is understood that, in the embodiment of the present application, the ac side power source may be a power source supporting reverse charging, that is, the power battery may charge the ac side power source through the first DCDC converter and the ACDC converter.

In this embodiment, the ACDC converter may be a device capable of converting ac power into dc power, such as a transformer, and the like, which is not limited in this embodiment. The ACDC converter is coupled with an alternating current side power supply at an alternating current side, and coupled with a first DCDC converter at a direct current side, and is used for transmitting the electric energy of the alternating current side power supply to the first DCDC converter or transmitting the electric energy of the first DCDC converter to the alternating current side power supply. In some embodiments, the ACDC converter may be a forward ACDC converter for transferring power in a forward direction, e.g., from left to right in fig. 1. In other embodiments, the ACDC converter may be a reverse ACDC converter for transferring power in reverse, for example from right to left in fig. 1. In other embodiments, the ACDC converter may also be a bidirectional ACDC converter for transmitting power in a forward direction or a reverse direction.

In the embodiment of the present application, the first DCDC converter may be a device capable of converting direct current into direct current, such as a combiner box, a voltage boosting device, a voltage reducing device, and the like, which is not limited in the embodiment of the present application. One side of the first DCDC converter is coupled and connected with the ACDC converter, and the other side of the first DCDC converter is coupled and connected with the power battery, and the first DCDC converter is used for transmitting the electric energy of the ACDC converter to the power battery or transmitting the electric energy of the power battery to the ACDC converter. In some embodiments, the first DCDC converter may be a forward DCDC converter for forward transfer of power, such as from left to right in fig. 1. In other embodiments, the first DCDC converter may be a reverse DCDC converter for transferring power in reverse, for example, from right to left in fig. 1. In other embodiments, the first DCDC converter may also be a bidirectional DCDC converter for forward or reverse transfer of electrical energy.

In the present embodiment, the power battery may be a battery for supplying electric power to a vehicle motor. Illustratively, the power battery may be a valve port sealed lead-acid battery, an open tubular lead-acid battery, or a lithium iron phosphate battery. One or more battery packs of the power cells may be configured as a power source to provide power to an electric motor of the vehicle.

In this embodiment, the second DCDC converter may be a device capable of converting a direct current into a direct current, and this is not limited in this embodiment. The second DCDC converter may be isolated or non-isolated. One side of the second DCDC converter is coupled with the power battery, and the other side of the second DCDC converter is coupled with the storage battery and used for transmitting the electric energy of the power battery to the storage battery. In some embodiments, the second DCDC converter may be a forward DCDC converter for forward transmission of electrical energy, such as from the power cell to the battery in fig. 1. In other embodiments, the second DCDC converter may be a reverse DCDC converter for reverse transmission of electrical energy, such as from the battery to the power cell in fig. 1. In other embodiments, the second DCDC converter may also be a bidirectional DCDC converter for forward or reverse transfer of electrical energy.

In the present embodiment, the storage battery may be a battery for supplying electric power to various components of the vehicle. The battery may be, for example, a rechargeable lithium ion or lead acid battery. One or more battery packs of storage batteries may be configured as a power source to provide power to various components of the vehicle.

In the embodiments of the present application, the PDU may be a device for distributing power. The power source side of the PDU is coupled with a direct current source, and the load side of the PDU is coupled with a power battery. The PDU may be configured to an on state such that the dc source quickly charges the power battery, enabling a quick function.

In some embodiments, the control module may include an integrated chip, a processor, an upper computer, and the like, and may be a combination of multiple integrated chips or a combination of multiple processors, which is not limited in this embodiment of the present application. Illustratively, the control module comprises an integrated chip, the integrated chip is provided with a plurality of input/output ports, the input/output ports are respectively coupled with the ACDC converter and the first DCDC converter, and the integrated chip is used for controlling the ACDC converter and the first DCDC converter to realize the transmission of the electric energy of the alternating-current side power supply to the power battery (normal charging function) or controlling the ACDC converter and the first DCDC converter to realize the transmission of the electric energy of the power battery to the alternating-current side power supply (reverse charging function). The integrated chip can be further coupled with a second DCDC converter for controlling the second DCDC converter to realize the transmission of the electric energy of the power battery to the storage battery (storage battery charging function). The integrated chip can also be coupled with a connection PDU (protocol data unit) for controlling the PDU to realize the transmission of the electric energy of the direct current source to the power battery (quick charging function). In practical applications, the integrated chip may further couple and connect other functional units to implement related functions, which is not limited in this application.

The above-described functions will be described in detail below:

1. a normal charging function;

in the embodiment of the application, the control module can control the ACDC converter and the first DCDC converter to be conducted in the forward direction, so that the electric energy of the alternating-current side power supply can be transmitted to the power battery, and the normal charging function is realized. When the function is realized, the ACDC converter can be a bidirectional ACDC converter or a forward ACDC converter, and the first DCDC converter can be a bidirectional DCDC converter or a forward DCDC converter.

2. A reverse charging function;

in the embodiment of the application, the control module can control the ACDC converter and the first DCDC converter to be conducted reversely, so that the electric energy of the power battery can be transmitted to the alternating current side power supply, and the reverse charging function is realized. When the function is realized, the ACDC converter can be a bidirectional ACDC converter or an inverse ACDC converter, and the first DCDC converter can be a bidirectional DCDC converter or an inverse DCDC converter.

3. A battery charging function;

in this embodiment, the control module may control the second DCDC converter to be turned on, so that the electric energy of the power battery may be transmitted to the storage battery, and a storage battery charging function is realized. In implementing this function, the second DCDC converter may be a bidirectional DCDC converter or a forward DCDC converter.

4. A bus capacitor pre-charging function;

in this embodiment of the application, the control module may control the second DCDC converter to be turned on reversely, so that the electric energy of the storage battery may be transmitted to the power battery, and a bus capacitor pre-charging function is realized. Specifically, the bus of some power batteries is connected with a bus capacitor in parallel. In the embodiment of the application, after the control module can control the second DCDC converter to be reversely switched on, the storage battery can pre-charge the bus capacitor through the power battery, so that the power battery is not damaged due to the fact that the power battery is switched on in the moment, and the impact current is too large. In implementing this function, the second DCDC converter may be a bidirectional DCDC converter or an inverse DCDC converter.

5. A fast charging function;

in this application embodiment, control module can control PDU and switch on for the electric energy of direct current source can transmit to power battery, realizes the quick charge function. It will be appreciated that the dc source may employ a fast charge protocol to deliver power at a fast charge voltage and current standard, and accordingly the power cell supports the fast charge protocol.

In order to implement the above functions, the control module includes corresponding algorithms, and the corresponding circuit modules (e.g., ACDC converter, first DCDC converter, and second DCDC converter) are of an appropriate type. If other newly added functions need to be realized, a new circuit module can be added or an appropriate circuit module type is used instead, and a corresponding algorithm is set in the control module.

In some embodiments, the control module may include one or more processors and memory. Wherein the one or more processors may be coupled to the ACDC converter, the first DCDC converter, the second DCDC converter, and the PDU, and the memory may store instructions that, when executed by the one or more processors, may implement the normal charging function, the reverse charging function, the battery charging function, and the fast charging function as in the above embodiments.

In some embodiments, the control module may be comprised of one or more controllers, each implementing a respective function, as described in various embodiments below.

Example two

Fig. 2 is a schematic diagram of a second embodiment of an onboard charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the device comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct-current power supply, an alternating-current side power supply, a first controller and a second controller.

In the embodiment of the present application, the ACDC converter, the first DCDC converter, the power battery, the second DCDC converter, the storage battery, the power distribution unit PDU, the dc power supply, and the ac-side power supply are similar to those in the foregoing embodiments, and are not described herein again.

In the embodiment of the application, the first controller is coupled to connect the ACDC converter and the first DCDC converter, and is configured to control the ACDC converter and the first DCDC converter to realize transmission of electric energy from the ac-side power supply to the power battery (normal charging function), or control the ACDC converter and the first DCDC converter to realize transmission of electric energy from the power battery to the ac-side power supply (reverse charging function).

In the embodiment of the present application, the second controller is coupled to the second DCDC converter, and is configured to control the second DCDC converter to implement transmission of electric energy of the power battery to the storage battery (storage battery charging function). The second controller is also coupled with the PDU and used for controlling the PDU to realize the transmission of the electric energy of the direct current source to the power battery (quick charging function).

In some embodiments, the first controller and the second controller cooperate with each other via a protocol. In other embodiments, the first controller serves as a main controller, the second controller serves as a sub-controller, and the first controller may issue an instruction to the second controller to instruct the second controller to operate, so as to implement cooperative operation of the two controllers. In other embodiments, the second controller serves as a main controller, the first controller serves as a sub-controller, and the second controller can issue an instruction to the first controller to instruct the first controller to work, so as to implement cooperative work of the two controllers.

EXAMPLE III

Fig. 3 is a schematic diagram of a third embodiment of an onboard charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the device comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct-current power supply, an alternating-current side power supply, a first controller and a second controller.

In the embodiment of the present application, the ACDC converter, the first DCDC converter, the power battery, the second DCDC converter, the storage battery, the power distribution unit PDU, the dc power supply, and the ac side power supply are similar to those of the foregoing embodiment, and are not described herein again.

In the embodiment of the application, the first controller is further coupled to the second DCDC converter, and is configured to control the second DCDC converter to implement transmission of the electric energy of the power battery to the storage battery (storage battery charging function).

In the embodiment of the application, the second controller is coupled to the PDU, and is used for controlling the PDU to realize the transmission of the electric energy of the direct current source to the power battery (fast charging function).

In some embodiments, the first controller and the second controller cooperate with each other via a protocol. In other embodiments, the first controller serves as a primary controller, the second controller serves as a secondary controller, and the first controller may issue an instruction to the second controller to instruct the second controller to operate, so as to implement cooperative operation of the two controllers. In other embodiments, the second controller serves as a main controller, the first controller serves as a sub-controller, and the second controller can issue an instruction to the first controller to instruct the first controller to work, so as to implement cooperative work of the two controllers.

Example four

Fig. 4 is a schematic diagram of a fourth embodiment of an on-vehicle charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the device comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct-current power supply, an alternating-current side power supply, a first controller and a second controller.

In an embodiment of the application, the first controller is coupled to connect the ACDC converter and the first DCDC converter, and is configured to control the ACDC converter and the first DCDC converter to implement transmission of electric energy of the ac-side power supply to the power battery (normal charging function), or control the ACDC converter and the first DCDC converter to implement transmission of electric energy of the power battery to the ac-side power supply (reverse charging function).

In the embodiment of the present application, the first controller is further coupled to the PDU, and is configured to control the PDU to implement transmission of the electric energy of the dc source to the power battery (fast charging function).

In the embodiment of the present application, the second controller is coupled to the second DCDC converter, and is configured to control the second DCDC converter to implement transmission of electric energy of the power battery to the storage battery (storage battery charging function).

EXAMPLE five

Fig. 5 is a schematic diagram of a fifth embodiment of an on-vehicle charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the system comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct current power supply, an alternating current side power supply, a first controller, a second controller and a third controller.

In the embodiment of the present application, the first controller and the second controller are similar to those in the second embodiment, and are not described herein again.

In this embodiment of the application, the third controller is coupled to the first controller and the second controller, and configured to issue an instruction to the first controller or the second controller to instruct the first controller or the second controller to work, so as to implement cooperative work.

It can be understood that in some embodiments of the third embodiment and the fourth embodiment, a third controller similar to that in the fifth embodiment may also be added to implement cooperative work, and the embodiments of this application are not described again.

Example six

Fig. 6 is a schematic diagram of a sixth embodiment of an on-vehicle charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the system comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct current power supply, an alternating current side power supply, a first controller, a second controller and a third controller.

In the embodiment of the application, the third controller is coupled to the PDU and is used for controlling the PDU to realize the transmission of the electric energy of the direct current source to the power battery (fast charging function).

In this embodiment, the third controller is further coupled to the first controller and the second controller, and configured to issue an instruction to the first controller or the second controller to instruct the first controller or the second controller to work, so as to implement cooperative work.

EXAMPLE seven

Fig. 7 is a schematic diagram of a seventh embodiment of an on-vehicle charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the system comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct current power supply, an alternating current side power supply, a first controller, a second controller and a third controller.

In the embodiment of the application, the second controller is coupled to the second DCDC converter, and is configured to control the second DCDC converter to implement transmission of electric energy of the power battery to the storage battery (storage battery charging function).

In the embodiment of the present application, the third controller is coupled to the PDU, and is configured to control the PDU to implement transmission of the electric energy of the dc source to the power battery (fast charging function).

In this embodiment, the first controller is further coupled to the second controller and the third controller, and configured to issue an instruction to the second controller or the third controller to instruct the second controller or the third controller to work, so as to implement cooperative work.

Example eight

Fig. 8 is a schematic diagram of an eighth embodiment of an on-vehicle charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the system comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct-current power supply, an alternating-current side power supply, a first controller, a second controller and a third controller.

In this embodiment, the second controller is further coupled to the first controller and the third controller, and configured to issue an instruction to the first controller or the third controller to instruct the first controller or the third controller to work, so as to implement cooperative work.

Example nine

Fig. 9 is a schematic diagram of a ninth embodiment of an on-vehicle charger control architecture provided in the present application. This on-vehicle machine control architecture that charges includes: the system comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct-current power supply, an alternating-current side power supply, a first controller, a second controller, a third controller and a fourth controller.

In this embodiment of the application, the fourth controller is coupled to the first controller, the second controller, and the third controller, and configured to issue an instruction to the first controller, the second controller, or the third controller to instruct the first controller, the second controller, or the third controller to work, so as to implement cooperative work.

It is understood that in the above embodiments, the meaning of the cooperative work may be to ensure that the functions do not conflict with each other.

In the above embodiments, the case that the control module includes two controllers and three controllers is exemplified, in practical applications, the control module may further include four controllers, five controllers, or more than four controllers, which is not described in detail in this embodiment of the present application.

According to the above embodiments, the present application provides an application of the vehicle-mounted charger control architecture, for example, as shown in fig. 10. Fig. 10 is a schematic diagram illustrating an application of the present application to provide an in-vehicle charger control architecture. This on-vehicle machine control architecture that charges includes: the system comprises an ACDC converter, a first DCDC converter, a power battery, a second DCDC converter, a storage battery, a power distribution unit PDU, a direct current power supply, an alternating current side power supply, a first controller, a second controller and a third controller.

The ACDC converter, the first DCDC converter, the power battery, the second DCDC converter, the storage battery, the power distribution unit PDU, the direct current power supply, the alternating current side power supply, the first controller, the second controller, and the third controller are similar to those of the foregoing sixth embodiment, wherein the ac-to-dc converter, the first DCDC converter, and the second DCDC converter have the following specific structures:

The ACDC converter comprises a first full-bridge rectification circuit consisting of a first switching tube Q1, a second switching tube Q2, a third switching tube Q3 and a fourth switching tube Q4, and a second full-bridge rectification circuit consisting of a fifth switching tube Q5, a sixth switching tube Q6, a seventh switching tube Q7 and an eighth switching tube Q8; the first full-bridge rectifier circuit and the second full-bridge rectifier circuit are coupled. And a first filter capacitor C1 is connected in parallel at the coupling part of the first full-bridge rectification circuit and the second full-bridge rectification circuit.

The first DCDC converter comprises a third full-bridge rectification circuit consisting of a first transformer T1, a ninth switching tube Q9, a tenth switching tube Q10, an eleventh switching tube Q11 and a twelfth switching tube Q12; one end of the first transformer T1 is coupled to the second end of the ACDC converter, and the other end of the first transformer T1 is coupled to the first end of the third full-bridge rectifier circuit; the second end of the third full-bridge rectification circuit is coupled with the power battery. And a second filter capacitor C2 is connected in parallel at the coupling position of the second end of the third full-bridge rectification circuit and the power battery.

The second DCDC converter comprises a fourth full-bridge rectification circuit consisting of a thirteenth switching tube Q13, a fourteenth switching tube Q14, a fifteenth switching tube Q15 and a sixteenth switching tube Q16, a second transformer T2, a first diode D1, a second diode D2, an inductor L and a third capacitor C3; one end of the fourth full-bridge rectification circuit is coupled with the power battery, and the other end of the fourth full-bridge rectification circuit is coupled with the first end of the second transformer T2; a second terminal of the second transformer T2 is coupled to the battery through the first diode D1 and the inductor L; a winding midpoint of a second terminal of the second transformer T2 is coupled to a first terminal of the second diode D2, and a second terminal of the second diode D2 is coupled to the coupling of the battery and the first diode D1; the third capacitor C3 is connected in parallel with the battery.

In this application example, the first controller may be coupled to the first switch tube Q1, the second switch tube Q2, the third switch tube Q3, the fourth switch tube Q4, the fifth switch tube Q5, the sixth switch tube Q6, the seventh switch tube Q7, and the eighth switch tube Q8, and controls the ACDC converter by controlling on and off of the switch tubes. The first controller may be further coupled to the ninth switching tube Q9, the tenth switching tube Q10, the eleventh switching tube Q11, and the twelfth switching tube Q12, and is configured to control the first DCDC converter by controlling on and off of the switching tubes.

In this application example, the second controller may be coupled to the thirteenth switching tube Q13, the fourteenth switching tube Q14, the fifteenth switching tube Q15 and the sixteenth switching tube Q16, and is configured to control the second DCDC converter by turning on and off the switching tubes.

Fig. 11 is a schematic view of a vehicle according to an embodiment of the present application. The vehicle 1 includes inside: the system comprises a motor 2, a power battery 3, a storage battery 4, a second DCDC converter 5, a power distribution unit PDU8, a combination unit 11 of an ACDC converter and a first DCDC converter, and a control module 12. The power battery 3 provides electric power for the motor 2, so that the motor 2 drives the vehicle to run.

In the embodiment of the present application, the power battery 3, the storage battery 4, the second DCDC converter 5, the power distribution unit PDU8, the ACDC converter and first DCDC converter combination unit 11, and the control module 12 are similar to those described in the foregoing embodiments, and are not described again here.

A dc charging terminal 7 and an ac charging terminal 10 are provided on the housing of the vehicle 1. The dc charging terminal 7 is used for connecting the dc power supply 6, and the ac charging terminal 10 is used for connecting the ac power supply 9.

When the ac-side power supply 9 is connected to the combined unit 11 of the ACDC converter and the first DCDC converter through the ac charging terminal, the control module 12 may detect that the vehicle 1 is connected to the ac-side power supply 9. At this time, the control module may control the ACDC converter and the first DCDC converter to realize transmission of the electric energy of the ac-side power supply 9 to the power battery 3 (normal charging function), or control the ACDC converter and the first DCDC converter to realize transmission of the electric energy of the power battery 3 to the ac-side power supply 9 (reverse charging function).

After the dc power source 6 is connected to the PDU8 through the dc charging terminal 7, the control module 12 may detect that the vehicle 1 has the dc power source 6 connected. The control module can control the PDU8 to realize the transmission of the electric energy of the direct current source to the power battery (quick charging function).

When the control module 12 detects that the remaining capacity of the storage battery 4 is less than the preset value, the control module 12 may control the second DCDC converter 5 to realize the transmission of the electric energy of the power battery 3 to the storage battery 4 (storage battery charging function).

The embodiment of the application further provides a vehicle-mounted charger which comprises the vehicle-mounted charger control framework provided by any one of the embodiments.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application, which are essential or part of the technical solutions contributing to the prior art, or all or part of the technical solutions, may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.

Claims

1. A vehicle-mounted charger control architecture, comprising:

the AC-to-DC converter is characterized in that a first end of the AC-to-DC converter is coupled with an AC source;

the first end of the first DC/DC converter is coupled with the second end of the AC/DC converter, and the second end of the first DC/DC converter is coupled with a power battery;

a control module, coupled to the control terminals of the AC/DC converter and the first DC/DC converter, for controlling the AC/DC converter and the first DC/DC converter to implement a function of charging the power battery by the alternating current source or a function of reversely charging the alternating current source by the power battery;

the power battery is coupled with a storage battery through the second DC/DC converter;

the control module is coupled with the second DC/DC converter and used for controlling the second DC/DC converter to realize the function of charging the storage battery by the power battery;

the power distribution unit PDU is used for coupling a direct current source with the power battery;

the control module is coupled with the PDU and used for controlling the PDU to realize the function of rapidly charging the power battery by the direct current source;

The control module comprises a first controller and a second controller, and the first controller and the second controller are coupled and used for cooperative work; or

The control module further comprises a third controller, and the third controller is respectively coupled with the first controller and the second controller and is used for cooperative work; or

The control module further comprises a fourth controller, and the fourth controller is coupled with the first controller, the second controller and the third controller respectively and is used for cooperative work.

2. The architecture of claim 1, wherein the control module comprises a first controller, a second controller, and a third controller;

the first controller is coupled with the control ends of the AC/DC converter and the first DC/DC converter and is used for controlling the AC/DC converter and the first DC/DC converter to realize the function of charging the power battery by the alternating current source or realize the function of reversely charging the alternating current source by the power battery;

the second controller is coupled with the second DC/DC converter and is used for controlling the second DC/DC converter to realize the function of charging the storage battery by the power battery;

And the third controller is coupled with the PDU and is used for controlling the PDU to realize the function of rapidly charging the power battery by the direct-current source.

3. The architecture of claim 2, wherein the first controller is coupled to the second controller and the third controller, respectively, for cooperative operation; or

The second controller is respectively coupled with the first controller and the third controller and is used for cooperative work; or

The third controller is coupled to the first controller and the second controller, respectively, for cooperative operation.

4. The architecture of claim 1, wherein the control module comprises a first controller and a second controller;

The second controller is further coupled with the PDU and is further used for controlling the PDU to achieve the function of rapidly charging the power battery through the direct current source.

5. The architecture of claim 1, wherein the control module comprises a first controller and a second controller;

the first controller is further coupled with the second DC/DC converter and is further used for controlling the second DC/DC converter to realize the function of charging the storage battery by the power battery;

the second controller is coupled with the PDU and used for controlling the PDU to realize the function of rapidly charging the power battery by the direct current source.

6. The architecture of claim 1, wherein the control module comprises a first controller and a second controller;

The second controller is coupled with the second DC/DC converter and used for controlling the second DC/DC converter to realize the function of charging the storage battery by the power battery;

the first controller is further coupled with the PDU and is further used for controlling the PDU to achieve the function of rapidly charging the power battery through the direct current source.

7. The architecture according to any one of claims 1 to 6, wherein the AC/DC converter comprises a first full-bridge rectification circuit consisting of a first switch tube, a second switch tube, a third switch tube and a fourth switch tube, and a second full-bridge rectification circuit consisting of a fifth switch tube, a sixth switch tube, a seventh switch tube and an eighth switch tube;

the first full-bridge rectifier circuit and the second full-bridge rectifier circuit are coupled.

8. The architecture of claim 7, wherein a first filter capacitor is connected in parallel at the coupling of the first full-bridge rectifier circuit and the second full-bridge rectifier circuit.

9. The architecture according to any one of claims 1 to 6, wherein the first DC/DC converter comprises a third full-bridge rectification circuit consisting of a first transformer, a ninth switching tube, a tenth switching tube, an eleventh switching tube and a twelfth switching tube;

One end of the first transformer is coupled with the second end of the AC/DC converter, and the other end of the first transformer is coupled with the first end of the third full-bridge rectifying circuit;

the second end of the third full-bridge rectification circuit is coupled with the power battery.

10. The architecture according to claim 9, wherein a second filter capacitor is connected in parallel to a coupling between the second end of the third full-bridge rectifier circuit and the power battery.

11. The architecture of any one of claims 1 to 6, wherein the second DC/DC converter comprises a fourth full-bridge rectification circuit consisting of a thirteenth switching tube, a fourteenth switching tube, a fifteenth switching tube and a sixteenth switching tube, a second transformer, a first diode, a second diode, an inductor and a third capacitor;

one end of the fourth full-bridge rectification circuit is coupled with the power battery, and the other end of the fourth full-bridge rectification circuit is coupled with the first end of the second transformer;

a second terminal of the second transformer is coupled to the battery through the first diode and the inductor;

the winding midpoint of the second end of the second transformer is coupled with the first end of the second diode, and the second end of the second diode is coupled with the coupling position of the storage battery and the first diode;

The third capacitor is connected with the storage battery in parallel.

12. The architecture of any one of claims 1 to 6, wherein the AC/DC converter is a bidirectional AC/DC converter or a unidirectional AC/DC converter;

the first DC/DC converter is a bidirectional DC/DC converter or a unidirectional DC/DC converter;

the second DC/DC converter is a bidirectional DC/DC converter or a unidirectional DC/DC converter.

13. An on-board charger, characterized by comprising the on-board charger control architecture according to any one of claims 1 to 12.

14. A vehicle characterized in that it comprises a vehicle-mounted charger according to claim 13.