CN215096887U

CN215096887U - Vehicle-mounted air conditioner control system and vehicle

Info

Publication number: CN215096887U
Application number: CN202120765735.9U
Authority: CN
Inventors: 齐孟彬; 魏长河; 周恩飞; 齐帅; 刘凯; 周谷岚
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-12-10
Anticipated expiration: 2031-04-14

Abstract

The present disclosure relates to a vehicle-mounted air conditioning control system and a vehicle. The system comprises: the power supply comprises a first high-voltage switch, a second high-voltage switch, a control component and an external power supply interface; the first high-voltage switch is connected with a vehicle-mounted air conditioner and an external power supply interface of the vehicle, the second high-voltage switch is connected with a power battery assembly and the vehicle-mounted air conditioner of the vehicle, and the control assembly is connected with the external power supply interface, the first high-voltage switch and the second high-voltage switch; wherein: and the control assembly is used for controlling the second high-voltage switch to be switched off and the first high-voltage switch to be switched on under the condition that the external power supply interface is detected to be communicated with the external power supply so as to supply power to the vehicle-mounted air conditioner through the external power supply, thereby avoiding the energy consumption of a power battery and improving the endurance mileage of the vehicle. And under the condition that the external power supply interface is not communicated with the external power supply, the first high-voltage switch is controlled to be switched off and the second high-voltage switch is controlled to be switched on, so that the power battery is used for supplying power to the vehicle-mounted air conditioner.

Description

Vehicle-mounted air conditioner control system and vehicle

Technical Field

The present disclosure relates to the field of vehicle control, and in particular, to a vehicle-mounted air conditioner control system and a vehicle.

Background

The new energy vehicle generally adopts power battery to supply power for on-vehicle air conditioner, and the continuation of the journey mileage of vehicle can be reduced to open on-vehicle air conditioner. Particularly, in severe cold seasons, the temperature in the vehicle is low at the starting point of vehicle operation, and the temperature in the vehicle is increased by starting the warm air heating of the vehicle-mounted air conditioner before the vehicle starts, so that the comfort of a driver and passengers is improved. However, when the vehicle-mounted air conditioner is started, the electric quantity of the power battery is consumed greatly, and the endurance mileage of the vehicle is reduced seriously.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the present disclosure provides an in-vehicle air conditioning control system and a vehicle.

In a first aspect, the present disclosure provides a vehicle-mounted air conditioner control system applied to a vehicle, the system including a first high-voltage switch, a second high-voltage switch, a control component and an external power interface; the first high-voltage switch is connected with a vehicle-mounted air conditioner of the vehicle and the external power supply interface, the second high-voltage switch is connected with a power battery assembly of the vehicle and the vehicle-mounted air conditioner, and the control assembly is connected with the external power supply interface, the first high-voltage switch and the second high-voltage switch; wherein:

the control assembly is used for controlling the second high-voltage switch to be switched off and the first high-voltage switch to be switched on under the condition that the external power supply interface is detected to be communicated with an external power supply, so that the external power supply supplies power to the vehicle-mounted air conditioner; and under the condition that the external power supply interface is not communicated with an external power supply, the first high-voltage switch is controlled to be switched off and the second high-voltage switch is controlled to be switched on, so that the power battery assembly supplies power to the vehicle-mounted air conditioner.

Optionally, the control component includes a first control end, and the first control end is connected to a first interface end of the external power interface; wherein:

the external power supply interface is used for grounding the first interface end under the condition of being communicated with an external power supply;

the control assembly is configured to: if the first control end is grounded through the first interface end, the external power supply interface is determined to be communicated with an external power supply; and if the first control end is detected to be broken, determining that the external power supply interface is not communicated with an external power supply.

Optionally, the first high-voltage switch is a first high-voltage relay, the second high-voltage switch is a second high-voltage relay, and the control assembly further includes a second control end, an input end, a first output end, and a second output end; the second control end and the input end are both connected with a low-voltage battery of the vehicle; one control end of the first high-voltage relay is connected with the first output end, and the other control end of the first high-voltage relay is grounded; one control end of the second high-voltage relay is connected with the second output end, and the other control end of the second high-voltage relay is grounded; wherein:

the control assembly is configured to: under the condition that the second control end and the input end are both communicated with the low-voltage battery, if the external power supply interface is determined to be communicated with an external power supply, the input end is controlled to be communicated with the first output end so as to control the second high-voltage relay to be disconnected and the first high-voltage relay to be closed, and the vehicle-mounted air conditioner is powered by the external power supply; if the external power supply interface is determined not to be communicated with the external power supply, the input end is controlled to be communicated with the second output end so as to control the first high-voltage relay to be disconnected and the second high-voltage relay to be closed, and therefore the power battery assembly supplies power to the vehicle-mounted air conditioner.

Optionally, the control assembly further comprises a control circuit, wherein:

and the control circuit is used for controlling the input end to be communicated with or disconnected from the low-voltage battery.

Optionally, the control circuit comprises a control switch and a controller; the control switch is connected with the low-voltage battery; the controller is connected with the control switch, the low-voltage battery, the external power supply interface and the power battery assembly; wherein:

the control switch is used for receiving an operation instruction of a user and is switched on or switched off according to the operation instruction;

the controller is used for controlling the second control end and the input end to be communicated with the low-voltage battery if the vehicle is determined to meet the air conditioner starting condition under the condition that the control switch is detected to be closed; if the vehicle is determined not to meet the air conditioner starting condition, controlling the second control end and the input end to be disconnected with the low-voltage battery, wherein the vehicle meeting the air conditioner starting condition comprises the following steps: the power battery assembly of the vehicle supplies power to high-voltage equipment of the vehicle, or the external power supply interface is communicated with an external power supply and an ignition switch of the vehicle is in a preset gear.

Optionally, the power battery assembly comprises a power battery and a charging circuit, and the controller is connected with the charging circuit;

the controller is configured to: and under the condition that the charging circuit is communicated with the charging equipment and the ignition switch of the vehicle is in a preset gear, controlling the charging equipment to supply power to high-voltage equipment of the vehicle, and determining that the vehicle meets the starting condition of an air conditioner.

Optionally, the first high-voltage relay, the second high-voltage relay and the vehicle-mounted air conditioner are all multiple.

In a second aspect, the present disclosure provides a vehicle comprising: the vehicle air conditioner control system according to the first aspect of the present disclosure.

By adopting the technical scheme, the vehicle-mounted air conditioner control system comprises a first high-voltage switch, a second high-voltage switch, a control assembly and an external power supply interface; the first high-voltage switch is connected with a vehicle-mounted air conditioner and an external power supply interface of the vehicle, the second high-voltage switch is connected with a power battery assembly and the vehicle-mounted air conditioner of the vehicle, and the control assembly is connected with the external power supply interface, the first high-voltage switch and the second high-voltage switch; wherein: the control assembly is used for controlling the second high-voltage switch to be switched off and the first high-voltage switch to be switched on under the condition that the external power supply interface is detected to be communicated with the external power supply, so that the vehicle-mounted air conditioner is supplied with power through the external power supply; and under the condition that the external power supply interface is not communicated with the external power supply, the first high-voltage switch is controlled to be switched off and the second high-voltage switch is controlled to be switched on, so that the power battery is used for supplying power to the vehicle-mounted air conditioner. Therefore, at the starting point and the end point of the running of the vehicle, under the condition that the external power supply is communicated through the external power supply interface, the vehicle-mounted air conditioner can be supplied with power through the external power supply based on the control of the control assembly, so that the energy consumption of a power battery is avoided, and the cruising mileage of the vehicle is improved; under the condition that an external power supply is not connected conditionally, the power battery can be used for supplying power to the vehicle-mounted air conditioner, so that the comfort level of people in the vehicle is not affected, and different energy sources are controlled by the control assembly to supply power to the vehicle-mounted air conditioner, thereby meeting the requirements of various scenes for opening the vehicle-mounted air conditioner.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural diagram of a vehicle air conditioner control system according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a second vehicle air conditioner control system provided in the embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a third vehicle air conditioner control system provided in the embodiment of the disclosure;

FIG. 4 is a schematic structural diagram of a fourth vehicle air conditioner control system provided in the embodiment of the disclosure;

FIG. 5 is a schematic structural diagram of a fifth vehicle air conditioner control system provided in the embodiment of the present disclosure;

fig. 6 is a flowchart of a control method for a vehicle air conditioner according to an embodiment of the disclosure;

fig. 7 is a block diagram of a vehicle provided by an embodiment of the present disclosure.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the description that follows, the terms "first," "second," and the like are used for descriptive purposes only and are not intended to indicate or imply relative importance nor order to be construed.

First, an application scenario of the present disclosure will be explained. The control method and the control device can be applied to the field of vehicle control, in particular to control of the vehicle-mounted air conditioner of the new energy vehicle. Because the new energy vehicle generally adopts power battery to supply power for on-vehicle air conditioner, consequently, open on-vehicle air conditioner can reduce the continuation of the journey mileage of vehicle. Particularly in severe cold seasons, the activity of the power battery is reduced at low temperature, and the endurance mileage is reduced; and the hot air heating is started, so that the endurance mileage of the vehicle can be further reduced. The inventor finds that: at the starting point of vehicle operation, for example, before the vehicle is driven on duty in the morning, because the temperature in the vehicle is low, a driver can start the vehicle-mounted air conditioner to heat for a period of time before the vehicle is driven, the temperature in the vehicle is increased from an extremely low temperature to a comfortable temperature, at the moment, the electric quantity of the power battery is completely used for supplying power to the vehicle-mounted air conditioner, the consumed electric quantity is large, and the driving mileage of the vehicle is seriously reduced; during normal running of the vehicle, the comfortable temperature only needs to be kept, and the consumed electric quantity is relatively small. Therefore, under the scene, the main reason influencing the driving mileage of the vehicle is the consumption of the electric quantity of the power battery in the process of starting the vehicle-mounted air conditioner for heating before the vehicle runs.

In order to solve the above problems, the present disclosure provides a vehicle-mounted air conditioning control system and a vehicle, the system including a first high voltage switch, a second high voltage switch, a control assembly, and an external power interface; the first high-voltage switch is connected with a vehicle-mounted air conditioner and an external power supply interface of the vehicle, the second high-voltage switch is connected with a power battery assembly and the vehicle-mounted air conditioner of the vehicle, and the control assembly is connected with the external power supply interface, the first high-voltage switch and the second high-voltage switch; wherein: the control assembly is used for controlling the second high-voltage switch to be switched off and the first high-voltage switch to be switched on under the condition that the external power supply interface is detected to be communicated with the external power supply, so that the vehicle-mounted air conditioner is supplied with power through the external power supply; and under the condition that the external power supply interface is not communicated with the external power supply, the first high-voltage switch is controlled to be switched off and the second high-voltage switch is controlled to be switched on, so that the power battery is used for supplying power to the vehicle-mounted air conditioner. Therefore, at the starting point and the end point of the running of the vehicle, under the condition that the external power supply is communicated through the external power supply interface, the vehicle-mounted air conditioner can be supplied with power through the external power supply based on the control of the control assembly, so that the energy consumption of a power battery is avoided, and the cruising mileage of the vehicle is improved; under the condition that an external power supply is not connected conditionally, the power battery can be used for supplying power to the vehicle-mounted air conditioner, so that the comfort level of people in the vehicle is not affected, and different energy sources are controlled by the control assembly to supply power to the vehicle-mounted air conditioner, thereby meeting the requirements of various scenes for opening the vehicle-mounted air conditioner.

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings.

Fig. 1 is a schematic structural diagram of an on-vehicle air conditioning control system that may be applied to a vehicle according to an embodiment of the present disclosure, and as shown in fig. 1, the on-vehicle air conditioning control system includes a first high-voltage switch 101, a second high-voltage switch 102, a control component 103, and an external power interface 104; the first high-voltage switch 101 is connected to a vehicle-mounted air conditioner 111 and the external power interface 104 of the vehicle, the second high-voltage switch 102 is connected to a power battery assembly 112 and the vehicle-mounted air conditioner 111 of the vehicle, and the control assembly 103 is connected to the external power interface 104, the first high-voltage switch 101 and the second high-voltage switch 102, wherein:

the control component 103 is configured to, when it is detected that the external power interface 104 is connected to an external power source, control the second high-voltage switch 102 to be opened and the first high-voltage switch 101 to be closed so as to supply power to the vehicle-mounted air conditioner through the external power source; under the condition that the external power interface 104 is not connected with an external power source, the first high-voltage switch 101 is controlled to be opened and the second high-voltage switch 102 is controlled to be closed so as to supply power to the vehicle-mounted air conditioner 111 through the power battery assembly 112.

For example, after the external power interface 104 is connected to the external power source, a power connection signal may be sent to the control component 103, so that the control component 103 detects that the external power interface 104 is connected to the external power source. The control component 103 can determine that the external power interface 104 is connected to the external power source after receiving the power connection signal; on the contrary, if the control component 103 does not receive the power connection signal, it may be determined that the external power interface 104 is not connected to the external power source, so as to control the states of the first high voltage switch 101 and the second high voltage switch 102 according to the above strategy.

It should be noted that the control component 103 may be a controller, or may be a relay or a switch circuit.

By adopting the system, at the starting point and the end point of the vehicle operation, under the condition that the external power supply is communicated through the external power supply interface, the vehicle-mounted air conditioner can be supplied with power through the external power supply based on the control of the control assembly, so that the energy consumption of a power battery is avoided, the endurance mileage of the vehicle is improved, and the increase of the endurance mileage is more obvious under the condition that the air-conditioning warm air needs to be started particularly in severe cold weather; under the condition that the external power supply is not connected conditionally, the power battery can be used for supplying power to the vehicle-mounted air conditioner, so that the comfort level of people in the vehicle is not affected, and the control strategy of the control assembly ensures that the power battery and the external power supply do not conflict with the power supply of the vehicle-mounted air conditioner, thereby meeting the requirements of various scenes for starting the vehicle-mounted air conditioner.

In some other embodiments of the present disclosure, the control assembly 103 may include a first control terminal C1, the first control terminal C1 being connected to a first interface terminal of the external power interface 104; wherein:

the external power supply interface 104 is used for grounding the first interface end under the condition of connecting an external power supply;

the control component 103 is configured to: if the first control terminal C1 is grounded through the first interface terminal, determining that the external power interface is connected to an external power source; and if the first control end is detected to be broken, determining that the external power interface is not communicated with the external power supply.

Illustratively, the external power interface 104 includes a first interface end and a second interface end, wherein the second interface end is connected to ground, and the first interface end is connected to the first control end of the control component 103. When the external power source interface 104 is connected to an external power source, the first interface end and the second interface end may be connected by an external power source connection device, so as to implement grounding of the first interface end. Since the first control end of the control component 103 is connected to the first interface end, the control component 103 can detect that the first control end is grounded, so that it can be determined that the external power interface 104 is connected to the external power; on the contrary, when the external power source 104 is not connected to the external power source, the first interface end is disconnected from the second interface end, that is, the first interface end is in an open circuit state, the control component 103 may detect that the first control end is open circuit, and thus may determine that the external power source 104 is not connected to the external power source.

It should be noted that the control component 103 may be a controller or a relay, and accordingly, the first control terminal may be a pin of the controller or a control port of the relay.

Therefore, whether the external power supply interface is communicated with the external power supply or not can be accurately detected through the first control end of the control assembly and the first interface end of the external power supply interface, and whether the external power supply can be used for supplying power to the vehicle-mounted air conditioner or not is judged.

Further, fig. 2 is a schematic structural diagram of a second vehicle air-conditioning control system provided IN the embodiment of the disclosure, as shown IN fig. 2, IN the vehicle air-conditioning control system, the first high-voltage switch 101 may be a first high-voltage relay, the second high-voltage switch 102 may be a second high-voltage relay, and the control component 103 may further include a second control terminal C2, an input terminal IN, a first output terminal OUT1, and a second output terminal OUT 2; the second control terminal C2 and the input terminal IN are both connected to the low-voltage battery 113 of the vehicle; one control end of the first high-voltage relay is connected with the first output end, and the other control end of the first high-voltage relay is grounded; one control end of the second high-voltage relay is connected with the second output end, and the other control end of the second high-voltage relay is grounded; wherein:

the control component 103 is configured to: under the condition that the second control end is communicated with the low-voltage battery 113, if the external power interface 104 is determined to be communicated with an external power supply, the input end IN is controlled to be communicated with the first output end OUT1 so as to control the second high-voltage relay to be opened and the first high-voltage relay to be closed, and power is supplied to the vehicle-mounted air conditioner 111 through the external power supply; if the external power interface 104 is determined not to be connected to an external power source, the input terminal IN is controlled to be connected to the second output terminal OUT2, so as to control the first high-voltage relay to be opened and the second high-voltage relay to be closed, so as to supply power to the vehicle air conditioner 111 through the power battery assembly 112.

It should be noted that the first high-voltage relay and the second high-voltage relay may be set to be in an open state when there is no current in the control circuit of the relay and to be in a closed state when there is current in the control circuit of the relay.

The control component 103 may be a low voltage relay 1031, and the low voltage relay 1031 may be configured such that the input terminal is communicated with the first output terminal in the case where a current is generated in the control circuit; in case of an open circuit of the control circuit, the input is connected to the second output.

For example, IN a case where the second control terminal C2 of the low voltage relay 1031 and the input terminal IN are both communicated with the low voltage battery 113, for example, may be connected to the positive electrode of the low voltage battery, and the second control terminal generates a positive voltage. At this time, if the external power interface 104 is connected to an external power source, the first control terminal C1 of the low voltage relay 1031 is grounded through the first interface terminal, so that a current is generated IN the control circuit of the low voltage relay 1031, and the control input terminal IN is connected to the first output terminal OUT1, because one control terminal of the first high voltage relay is connected to the first output terminal and the other control terminal is grounded, the control circuit of the first high voltage relay generates a current at this time, so as to control the first high voltage relay to be closed, and connect the external power interface 104 to the vehicle air conditioner 111, so as to supply power to the vehicle air conditioner 111 through the external power source. And since the input terminal of the low voltage relay 1031 is disconnected from the second output terminal, the control circuit of the second high voltage relay is in an open state, and thus the second high voltage relay is opened.

Similarly, IN the case where the second control terminal C2 and the input terminal IN of the low voltage relay 1031 are both connected to the low voltage battery 113, if the external power supply interface 104 is not connected to the external power supply, the first control terminal C1 of the low voltage relay 1031 is IN the open state, and the input terminal IN is connected to the second output terminal OUT2, so that a current is generated IN the control circuit of the second high voltage relay, and the second high voltage relay is closed; the control circuit of the first high-voltage relay is in an open state, and therefore the first high-voltage relay is open.

In this embodiment, the control component 103 may be a controller or a control circuit including a controller. In this way, the control can be achieved through multiple input and output pins of the controller.

Therefore, one of the external power supply and the power battery assembly can be further selected to supply power for the vehicle-mounted air conditioner through the control assembly, and the conflict problem caused by the external power supply and the power battery assembly for supplying power for the vehicle-mounted air conditioner can be avoided.

Fig. 3 is a schematic structural diagram of a third vehicle air-conditioning control system provided in the embodiment of the disclosure, and as shown in fig. 3, in the vehicle air-conditioning control system, the control assembly further includes a control circuit 1032, where:

the control circuit 1032 is used for controlling the connection or disconnection of the input terminal and the low-voltage battery 113.

The control circuit 1032 may control a switch or a controller. Under the condition that the input end is controlled to be disconnected from the low-voltage battery 113 through the control circuit 1032, no current is output from the first output end and the second output end of the control assembly 103, so that the first high-voltage relay and the second high-voltage relay are both disconnected, and the vehicle-mounted air conditioner is turned off. On the contrary, in the case that the input end is communicated with the low-voltage battery 113, the first output end or the second output end of the control component 103 may be controlled to output current through the above-mentioned control strategy of the control component 103, so that one of the first high-voltage relay or the second high-voltage relay is closed, that is, one of the external power source or the power battery component 112 is selected to supply power to the vehicle-mounted air conditioner 111, thereby turning on the vehicle-mounted air conditioner 111.

It should be noted that the control component 103 may include the low voltage relay 1031 and the control circuit 1032.

Therefore, the control circuit can control the on or off of the vehicle-mounted air conditioner, and selects one of the external power supply or the power battery component to supply power to the vehicle-mounted air conditioner in the on state.

Further, fig. 4 is a schematic structural diagram of a fourth vehicle air-conditioning control system provided by the embodiment of the disclosure, as shown in fig. 4, in the vehicle air-conditioning control system, the control circuit 1032 includes a control switch 10321 and a controller 10322; the control switch 10321 is connected to the low-voltage battery 113; the controller 10322 is connected to the control switch 10321, the low-voltage battery 113, the external power interface 104 and the power battery assembly 112; wherein:

the control switch 10321 is configured to receive an operation instruction from a user, and to close or open according to the operation instruction. For example, when the user desires to switch the in-vehicle air conditioner, the control switch 10321 may be closed by pressing the control switch; conversely, when the user desires to turn off the in-vehicle air conditioner, the control switch 10321 may be turned off by pressing the control switch again. The control switch 10321 may be a rocker switch, and a user issues an operation instruction by pressing the rocker switch.

The controller 10322 is configured to, in a case that it is detected that the control switch 10321 is closed, control both the second control terminal and the input terminal to communicate with the low-voltage battery 113 if it is determined that the vehicle satisfies an air-conditioning turn-on condition; if the vehicle is determined not to satisfy the air-conditioning starting condition, controlling both the second control end and the input end to be disconnected from the low-voltage battery 113, wherein the vehicle satisfies the air-conditioning starting condition and includes: the power battery assembly 112 of the vehicle supplies power to the high-voltage equipment of the vehicle, or the external power interface 104 is communicated with an external power source and an ignition switch of the vehicle is in a preset gear.

The manner of determining whether the vehicle meets the air conditioner on condition may include the following two ways:

in the first mode, after the vehicle is electrified at high voltage, the power battery assembly of the vehicle can supply power for the high-voltage equipment, so that the vehicle can be determined to meet the starting condition of the air conditioner.

In the second mode, the external power interface 104 is connected to an external power source and the ignition switch of the vehicle is in a predetermined gear. The shift position of the ignition switch includes START, ON, LOC, ACC, and the like, and the preset shift position may be an ON shift position.

Thus, through the mode, the operation instruction of the user can be received, and the vehicle is controlled to start the vehicle-mounted air conditioner based on the operation instruction.

Alternatively, the controller 10322 may receive a remote operation instruction of a user through the vehicle-mounted communication module, and in a case that the remote operation instruction is an air conditioner on instruction, may control both the second control terminal and the input terminal to communicate with the low-voltage battery 113, so as to remotely turn on the vehicle-mounted air conditioner. Therefore, before the driver starts, the vehicle-mounted air conditioner can be started in advance to adjust the temperature in the vehicle to the comfortable temperature, and the comfort of the driver and passengers in the vehicle is further improved.

Fig. 5 is a schematic structural diagram of a fifth vehicle-mounted air conditioning control system according to an embodiment of the disclosure, and as shown in fig. 5, in the vehicle-mounted air conditioning control system, the power battery assembly 112 may include a power battery 1121 and a charging circuit 1122, and the controller 10322 may be connected to the charging circuit 1122.

The controller 10322 may be configured to: under the condition that the charging circuit 1122 is detected to be communicated with the charging device and the ignition switch of the vehicle is in the preset gear, the charging device is controlled to supply power to the high-voltage device of the vehicle, and the vehicle is determined to meet the air conditioner starting condition.

It should be noted that the controller may confirm whether the charging circuit 1122 is connected to the charging device through the charging detection circuit of the vehicle; it may also be detected whether charging circuit 1122 is in communication with the charging device through handshaking message interaction with the charging device. For example, if a response message of the charging device is received after the controller sends the charging handshake message to the charging device, it may be determined that the charging circuit 1122 is in communication with the charging device; conversely, if the controller does not receive a response from the charging device after sending the charging handshake message, it may be determined that the charging circuit 1122 is not connected to the charging device.

Through the mode, the charging equipment can be used for supplying power to the vehicle-mounted air conditioner under the condition that the vehicle is connected with the charging equipment, so that the energy consumption of a power battery is avoided, and the endurance mileage of the vehicle is improved.

Furthermore, the number of the first high-voltage relay, the number of the second high-voltage relay and the number of the vehicle-mounted air conditioners can be multiple.

Accordingly, the number of the low-voltage relays and the control switches may be plural.

The vehicle can comprise a front row vehicle-mounted air conditioner and a rear row vehicle-mounted air conditioner, and the power supply selection of the two rows vehicle-mounted air conditioners is controlled through two first high-voltage relays and two second high-voltage relays respectively. Correspondingly, the number of the control switches can be two, and the control switches respectively receive operation instructions of the user for the two paths of vehicle-mounted air conditioners; the number of the low-voltage relays can be two, and the low-voltage relays are used for respectively controlling the opening and the closing of the two paths of vehicle-mounted air conditioners.

In this way, in a scenario where the vehicle includes a plurality of on-vehicle air conditioners, individual control of each on-vehicle air conditioner can be realized.

Fig. 6 is a flowchart of a vehicle air conditioner control method provided by an embodiment of the present disclosure, and as shown in fig. 6, an execution main body of the method may be a control component in a vehicle air conditioner control system, where the vehicle air conditioner control system includes a first high-voltage switch, a second high-voltage switch, a control component, and an external power interface; the first high-voltage switch is connected with a vehicle-mounted air conditioner and the external power supply interface of the vehicle, the second high-voltage switch is connected with a power battery assembly of the vehicle and the vehicle-mounted air conditioner, and the control assembly is connected with the external power supply interface, the first high-voltage switch and the second high-voltage switch; the method comprises the following steps:

s601, detecting whether the external power supply interface is communicated with an external power supply.

In this step, it may be determined that the external power interface is connected to the external power source by receiving a power connection signal sent by the external power interface.

For example, after the external power interface is connected to the external power source, a power connection signal may be sent to the control component, so that the control component detects that the external power interface is connected to the external power source.

S602, under the condition that the external power supply interface is detected to be communicated with an external power supply, the second high-voltage switch is controlled to be switched off and the first high-voltage switch is controlled to be switched on, so that the external power supply is controlled to supply power to the vehicle-mounted air conditioner.

And S603, under the condition that the external power supply interface is not communicated with an external power supply, controlling the first high-voltage switch to be switched off and the second high-voltage switch to be switched on so as to control the power battery assembly to supply power to the vehicle-mounted air conditioner.

By adopting the method, under the condition that the external power supply interface is communicated with the external power supply, the first high-voltage switch and the second high-voltage switch are used for controlling the external power supply to supply power to the vehicle-mounted air conditioner, so that the energy consumption of a power battery is avoided, the endurance mileage of the vehicle is improved, and the increase of the endurance mileage is more obvious under the condition that warm air of the air conditioner needs to be started particularly in severe cold weather. And under the condition that the external power supply interface is not communicated with the external power supply, the power battery assembly is controlled by the first high-voltage switch and the second high-voltage switch to supply power to the vehicle-mounted air conditioner, so that the comfort level of people in the vehicle is not affected. Therefore, the power battery and the external power supply can be ensured not to conflict with the power supply of the vehicle-mounted air conditioner, and the scene requirements of starting various vehicle-mounted air conditioners are met.

In another embodiment of the present disclosure, the control assembly may include a first control terminal; the first control end is connected with a first interface end of the external power supply interface; the external power supply interface is used for grounding the first interface end under the condition of being communicated with an external power supply; the step S601 may detect whether the external power interface is connected to the external power source, and the method includes:

if the first control end is grounded through the first interface end of the external power supply interface, determining that the external power supply interface is communicated with an external power supply; or,

and if the first control end is detected to be broken, determining that the external power interface is not communicated with the external power supply.

Therefore, whether the external power supply interface is communicated with the external power supply can be accurately detected, and whether the external power supply can be used for supplying power to the vehicle-mounted air conditioner is judged.

Further, the control assembly may further include a second control terminal and an input terminal; the second control end and the input end are both connected with a low-voltage battery of the vehicle; before the above step S601, it may be first detected whether the second control terminal and the input terminal are powered on. Then, when both the second control terminal and the input terminal are powered on, the step of S601 detecting whether the external power interface is connected to the external power source is executed.

It should be noted that the second control terminal and the input terminal of the control assembly may be connected to the low-voltage battery respectively, or may be connected together as a port connected to the low-voltage battery.

Therefore, one of the external power supply and the power battery assembly can be further selected to supply power for the vehicle-mounted air conditioner in the mode, and the conflict problem caused by the fact that the external power supply and the power battery assembly supply power for the vehicle-mounted air conditioner at the same time can be avoided.

In addition, in another embodiment of the present disclosure, the second control terminal and the input terminal may also be controlled to be powered on according to an operation instruction of a user, for example, before the detecting whether the second control terminal and the input terminal are powered on, the method may further include:

first, an operation instruction of a user is received.

The operation instruction may be an air conditioner opening and closing action of a user, for example, when the user desires to open and close the vehicle-mounted air conditioner, a control switch of the vehicle-mounted air conditioner may be closed by pressing; conversely, when the user desires to turn off the vehicle air conditioner, the control switch of the vehicle air conditioner may be turned off by pressing again. Of course, the operation command may also be an on-vehicle air conditioner turn-on or turn-off command sent to the control assembly through an on-vehicle instrument.

Secondly, controlling the connection or disconnection of the second control end and the input end with the low-voltage battery according to the operation instruction.

In this step, the control assembly may be connected with the low-voltage battery, the external power interface, and the power battery assembly. After receiving an operation instruction of a user to start the vehicle-mounted air conditioner, determining whether the vehicle meets an air conditioner starting condition or not, wherein the vehicle meets the air conditioner starting condition and comprises the following steps: the power battery assembly of the vehicle supplies power to high-voltage equipment of the vehicle, or the external power supply interface is communicated with an external power supply and an ignition switch of the vehicle is in a preset gear. The following two operations may then be performed depending on whether the vehicle satisfies the air conditioner turn-on condition:

and if the vehicle is determined to meet the air conditioner starting condition, controlling the second control end and the input end to be communicated with the low-voltage battery.

In this way, in the case that both the second control terminal and the input terminal are communicated with the low-voltage battery, it may be determined that both the second control terminal and the input terminal are powered on, and the step of detecting whether the external power interface is communicated with the external power source in S601 is continuously performed.

And secondly, if the vehicle is determined not to meet the air conditioner starting condition, the second control end and the input end are controlled to be disconnected with the low-voltage battery.

At this time, it may be determined that the second control terminal and the input terminal are not powered on, and the vehicle air conditioner is kept in the off state without performing the step S601.

Thus, by the mode, the operation instruction of a user can be received, the on or off of the vehicle-mounted air conditioner is controlled based on the operation instruction, and one of the external power supply or the power battery assembly is selected to supply power to the vehicle-mounted air conditioner in the on state.

Further, the power battery assembly comprises a power battery and a charging circuit, and the controller is connected with the charging circuit; the method further comprises the following steps:

and under the condition that the charging circuit is communicated with the charging equipment and the ignition switch of the vehicle is in a preset gear, controlling the charging equipment to supply power to high-voltage equipment of the vehicle, and determining that the vehicle meets the air conditioner starting condition.

Furthermore, the number of the first high-voltage switch, the number of the second high-voltage switch and the number of the vehicle-mounted air conditioners can be multiple. The control assembly controls the plurality of first high-voltage switches and the plurality of second high-voltage switches, so that the vehicle can be controlled independently in a scene that the vehicle comprises a plurality of vehicle-mounted air conditioners.

Fig. 7 is a block diagram of a vehicle provided in an embodiment of the present disclosure, and as shown in fig. 7, the vehicle includes: the vehicle-mounted air conditioner control system.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The vehicle-mounted air conditioner control system is characterized by being applied to a vehicle and comprising a first high-voltage switch, a second high-voltage switch, a control assembly and an external power supply interface; the first high-voltage switch is connected with a vehicle-mounted air conditioner of the vehicle and the external power supply interface, the second high-voltage switch is connected with a power battery assembly of the vehicle and the vehicle-mounted air conditioner, and the control assembly is connected with the external power supply interface, the first high-voltage switch and the second high-voltage switch; wherein:

2. The system of claim 1, wherein the control assembly comprises a first control terminal connected to a first interface terminal of the external power interface; wherein:

3. The system of claim 2, wherein the first high voltage switch is a first high voltage relay, the second high voltage switch is a second high voltage relay, the control assembly further comprising a second control terminal, an input terminal, a first output terminal, and a second output terminal; the second control end and the input end are both connected with a low-voltage battery of the vehicle; one control end of the first high-voltage relay is connected with the first output end, and the other control end of the first high-voltage relay is grounded; one control end of the second high-voltage relay is connected with the second output end, and the other control end of the second high-voltage relay is grounded; wherein:

the control assembly is configured to: under the condition that the second control end and the input end are communicated with the low-voltage battery, if the external power supply interface is determined to be communicated with an external power supply, the input end is controlled to be communicated with the first output end so as to control the second high-voltage relay to be disconnected and the first high-voltage relay to be closed, and the vehicle-mounted air conditioner is powered by the external power supply.

4. The system of claim 3, wherein the control component is further configured to: under the condition that the second control end and the input end are communicated with the low-voltage battery, if the external power supply interface is determined not to be communicated with the external power supply, the input end is controlled to be communicated with the second output end so as to control the first high-voltage relay to be disconnected and the second high-voltage relay to be closed, and the power battery assembly supplies power to the vehicle-mounted air conditioner.

5. The system of claim 3, wherein the control component further comprises a control circuit, wherein:

6. The system of claim 5, wherein the control circuit comprises a control switch and a controller; the control switch is connected with the low-voltage battery; the controller is connected with the control switch, the low-voltage battery, the external power supply interface and the power battery assembly; wherein:

the controller is configured to, when it is detected that the control switch is turned on, control the second control terminal and the input terminal to be both communicated with the low-voltage battery if it is determined that the vehicle satisfies an air-conditioning turn-on condition, where the vehicle satisfying the air-conditioning turn-on condition includes: the power battery assembly of the vehicle supplies power to high-voltage equipment of the vehicle, or the external power supply interface is communicated with an external power supply and an ignition switch of the vehicle is in a preset gear.

7. The system of claim 6, wherein the controller is further configured to control the second control terminal and the input terminal to be disconnected from the low-voltage battery if it is determined that the vehicle does not satisfy an air conditioner opening condition if the control switch is detected to be closed.

8. The system of claim 6, wherein the power battery assembly comprises a power battery and a charging circuit, the controller being connected to the charging circuit;

9. The system of claim 3, wherein the first high voltage relay, the second high voltage relay, and the on-board air conditioner are all plural.

10. A vehicle characterized in that the vehicle includes the on-vehicle air conditioning control system of any one of claims 1 to 9.