CN219883804U

CN219883804U - External load control circuit and system of vehicle and vehicle

Info

Publication number: CN219883804U
Application number: CN202320769082.0U
Authority: CN
Inventors: 蒋京妹; 任艳
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-10-24
Anticipated expiration: 2033-04-10

Abstract

The utility model provides an external load control circuit and system of a vehicle and the vehicle, which belong to the field of vehicles, wherein the circuit comprises: the storage battery, the first control loop and the load power taking loop are respectively connected with the storage battery, the vehicle body controller is connected with the first control loop, and the first relay; the first coil of the first relay is connected in series in the first control loop, and the first contact of the first relay is connected in series in the load power-taking loop; the vehicle body controller is used for driving the first control loop to be closed so as to enable the first coil to be electrified; the first relay is used for closing the first contact under the drive of the first coil for powering, so that the load power-taking circuit is powered. According to the utility model, whether the load power take-off loop is communicated or not is decoupled from the oil pump, so that the load power take-off loop is not controlled by the oil pump relay any more, the period that the load power take-off loop cannot provide power outwards is eliminated, the situation that a user mistakenly takes the load power take-off loop of the vehicle as abnormal is effectively avoided, and the vehicle using experience of the user is improved.

Description

External load control circuit and system of vehicle and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to an external load control circuit and system for a vehicle and the vehicle.

Background

Along with the improvement of living standard and the need of people's going out, more and more vehicles are equipped with electricity taking ports for meeting electricity taking demands of people, so that electric equipment such as vehicle-mounted electric rice cooker, vehicle-mounted water heater, vehicle-mounted refrigerator and the like can be conveniently used.

In the prior art, in order to avoid the condition of whole vehicle power shortage when a user gets electricity, a load electricity-getting loop is generally connected with an engine oil pump relay so as to control the total power supply of the load electricity-getting loop through the oil pump relay. But the oil pump relay can be automatically disconnected after the oil circuit is built up, and the oil pump relay can not be closed again until the engine is started. Therefore, during the period from the completion of the oil pump pressure establishment to the starting of the engine, the load power take-off circuit cannot provide power outwards, so that a user can misuse the load power take-off circuit of the vehicle to be abnormal, and the vehicle experience of the user is further reduced.

Disclosure of Invention

Based on the above, the utility model provides an external load control circuit and system of a vehicle and the vehicle, so as to solve the problem of how to avoid the abnormality of a power taking circuit for the load of the vehicle caused by error of a user.

A first aspect of the embodiments proposes a vehicle external load control circuit, comprising: the system comprises a storage battery, a first control loop and a load power taking loop which are respectively connected with the storage battery, a vehicle body controller connected with the first control loop and a first relay; the first coil of the first relay is connected in series in the first control loop, and the first contact of the first relay is connected in series in the load power-taking loop;

the vehicle body controller is used for driving the first control loop to be closed so as to enable the first coil to be electrified;

and the first relay is used for closing the first contact under the drive of the first coil which is electrified so as to electrify the load electricity-taking loop.

Optionally, the circuit further comprises: an engine controller connected to the vehicle body controller;

the engine controller is configured to send a level signal to the vehicle body controller after an engine is started;

the vehicle body controller is configured to close the first control loop under the driving of the level signal.

Optionally, the load power take-off loop includes: the second control loop is connected with the storage battery and at least one power supply loop;

the second control loop includes: the control main circuit comprises a control main circuit, at least one control branch circuit connected with the control main circuit, and a second relay connected in series in each control branch circuit, wherein the first contact is connected in series in the control main circuit;

each power supply loop is connected with each control branch through the second relay, each control branch is connected with a second coil of the second relay, and each power supply loop is connected with a second contact of the second relay;

and the second relay is used for closing the power supply loop under the drive of the second coil for obtaining electricity so as to obtain electricity of the power supply loop.

Optionally, the circuit further comprises: and the fuse is connected in series in the power supply loop.

Optionally, the circuit further comprises a control switch connected in series on the control branch, and the control switch is used for controlling the control branch to be communicated when the control switch is closed.

Optionally, the current outflow end of the second control loop is grounded.

Optionally, the negative electrode of the storage battery is grounded.

Optionally, a power taking port for connecting an external load is connected in series in the power supply loop.

The second aspect of the utility model provides a vehicle external load control system, which comprises the vehicle external load control circuit according to the first aspect of the utility model.

A third aspect of the present utility model provides a vehicle comprising the vehicle external load control system according to the second aspect of the present utility model.

The utility model provides a vehicle external load control circuit, a system and a vehicle, wherein the vehicle external load control circuit comprises: the system comprises a storage battery, a first control loop and a load power taking loop which are respectively connected with the storage battery, a vehicle body controller connected with the first control loop and a first relay; the first coil of the first relay is connected in series in the first control loop, and the first contact of the first relay is connected in series in the load power-taking loop; the vehicle body controller is used for driving the first control loop to be closed so as to enable the first coil to be electrified; and the first relay is used for closing the first contact under the drive of the first coil which is electrified so as to electrify the load electricity-taking loop.

The utility model connects the vehicle body controller with the first control loop, controls the first control loop to be closed through the vehicle body controller, and further enables the first coil of the first relay connected in the first control loop to be electrified so as to close the first contact, and after the first contact is closed, the load electricity taking loop is communicated to be electrified. The utility model provides an external load control circuit, a system and a vehicle of a vehicle, wherein a vehicle body controller is used for controlling a load power taking circuit, and the communication of the load power taking circuit is decoupled from an oil pump, so that the load power taking circuit is not controlled by an oil pump relay any more, the period that the load power taking circuit cannot provide power outwards is eliminated, the situation that a user mistakenly takes the load power taking circuit of the vehicle as abnormal is effectively avoided, and the vehicle using experience of the user is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an external load control circuit for a vehicle according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of another external load control circuit for a vehicle according to an embodiment of the present utility model.

Reference numerals:

the system comprises a storage battery 1, a first control loop 2, a load power taking loop 3, a second control loop 31, a power supply loop 32, a second relay 33, a fuse 34, a control switch 35, a power taking port 36, a vehicle body controller 4, a first relay 5 and an engine controller 6.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

An embodiment of the present utility model is shown in fig. 1, which is a schematic structural diagram of an external load control circuit of a vehicle, where the circuit includes:

a battery 1, a first control circuit 2 and a load power take-off circuit 3 connected to the battery 1, respectively, a vehicle body controller 4 connected to the first control circuit 1, and a first relay 5; wherein, the first coil of the first relay 5 is connected in series in the first control loop 2, the first contact of the first relay 5 is connected in series in the load taking loop 3;

the vehicle body controller 4 is used for driving the first control loop 2 to be closed so as to enable the first coil to be electrified;

the first relay 5 is used for closing the first contact under the drive of the first coil for powering, so that the load power taking circuit 3 is powered.

The battery 1 is a device for storing electric power for supplying power to electronic devices to support normal operation of the vehicle. In a conventional energy vehicle using an engine as a drive source, electric energy stored in a battery is generally converted from kinetic energy generated by the engine. The storage battery on the traditional energy vehicle has smaller capacity, and the electricity consumption requirement of a user when the user goes out can not be met only by means of the electric quantity stored in the storage battery. Therefore, when the electric energy is supplied to the external load, the vehicle needs to start the engine at the same time, and when the electric energy is supplied to the external load by the storage battery, the electric energy is generated through the engine and is input to the storage battery, so that the condition that the power consumption of the external load is excessive and the storage battery is insufficient is prevented.

The load taking circuit 3 is a circuit which can be connected with an external load and further provides electric energy for the external load. The load-taking circuit 3 is connected with the battery 1, and a current path is formed to supply power to an external load when the load-taking circuit 3 is closed. In actual life, a common external load is provided with a vehicle-mounted electric cooker, a vehicle-mounted refrigerator and the like.

The vehicle body controller 4 refers to a device for controlling an electric circuit of the vehicle. The body controller may mechanically or electronically implement control of other modules in the circuit, for example, the body controller 4 may include a specially designed permanent circuit or logic device (e.g., a special purpose processor, FPGA or ASIC) for controlling other modules in the circuit. The body controller 4 may also include programmable logic devices or circuitry (e.g., including general purpose processing devices or other programmable processors) temporarily configured by software for controlling other modules in the present circuit. As regards implementation of the hardware modules in a mechanical manner, either by dedicated permanent circuits or by circuits that are temporarily configured (e.g. by software), this may be determined by cost and time considerations.

The relay is an electric control device, and is an electric appliance that causes a predetermined step change in the controlled quantity in an electric output circuit when the change in the input quantity reaches a prescribed requirement. It has an interactive relationship between a control circuit and a controlled circuit, and is generally applied to an automatic control circuit. The relay is actually an 'automatic switch' which uses small current to control the operation of large current, and plays roles of automatic regulation, safety protection, switching circuit and the like in the circuit.

The first relay 5 includes a first coil, which is a control circuit, and a first contact, which is a controlled circuit. The first coil is essentially an electromagnet that, when energized, produces magnetism that attracts a first contact that is ferrous or otherwise supported by a magnetically attractive metal to close the first contact under the force of the attraction.

The first coil of the first relay 5 is connected in series in the first control loop 2 and the first contact is connected in series in the load extraction loop 3. When the first control circuit 2 is closed under the drive of the vehicle body controller 4, the current in the battery 1 flows in the first control circuit 2 to energize the first coil. The first coil after power is supplied generates magnetism to drive the first contact to be closed so as to supply power to the load power taking circuit 3.

In the embodiment, the vehicle body controller is connected with the first control loop, the first control loop is controlled to be closed by the vehicle body controller, and then the first coil of the first relay connected in the first control loop is electrified to close the first contact, and after the first contact is closed, the load electricity-taking loop is communicated to obtain electricity. The embodiment provides an external load control circuit, a system and a vehicle of a vehicle, wherein a vehicle body controller is used for controlling a load power taking circuit, and the communication of the load power taking circuit is decoupled from an oil pump, so that the load power taking circuit is not controlled by an oil pump relay any more, the period that the load power taking circuit cannot provide power outwards is further eliminated, the situation that a user mistakenly takes the load power taking circuit of the vehicle as abnormal is effectively avoided, and the vehicle using experience of the user is improved.

The second aspect of the present utility model proposes an embodiment, as shown in fig. 2, which is a schematic structural diagram of another external load control circuit for a vehicle, the circuit including:

The vehicle body controller 4 refers to a device for controlling an electric circuit of the vehicle. The body controller 4 may mechanically or electronically implement control of other modules in the circuit, for example, the body controller 4 may include a specially designed permanent circuit or logic device (e.g., a special purpose processor, FPGA or ASIC) for controlling other modules in the circuit. The body controller 4 may also include programmable logic devices or circuitry (e.g., including general purpose processing devices or other programmable processors) temporarily configured by software for controlling other modules in the present circuit. As regards implementation of the hardware modules in a mechanical manner, either by dedicated permanent circuits or by circuits that are temporarily configured (e.g. by software), this may be determined by cost and time considerations.

Optionally, the circuit further comprises: an engine controller 6 connected to the vehicle body controller 4;

an engine controller 6 configured to send a level signal to the body controller 4 when the engine is started;

the vehicle body controller 4 is configured to close the first control loop 2 under the drive of the level signal.

The engine controller 6 refers to a device for controlling an engine circuit. The engine controller 6 may mechanically or electronically implement control of the engine, for example, the engine controller 6 may include specially designed permanent circuits or logic devices (e.g., special purpose processors, FPGAs or ASICs) for controlling other modules in the circuit. The engine controller 6 may also include programmable logic devices or circuitry (e.g., including a general purpose processing device or other programmable processor) temporarily configured by software for controlling other modules in the present circuit. As regards implementation of the hardware modules in a mechanical manner, either by dedicated permanent circuits or by circuits that are temporarily configured (e.g. by software), this may be determined by cost and time considerations.

After the engine controller 6 controls the engine to start, a level signal is sent to the vehicle body controller 4 through point circuit connection with the vehicle body controller 4 so as to drive the vehicle body controller 4 to close the first control loop 2, further close the first contact and communicate with the load taking loop 3.

The vehicle body controller 4 is connected with the engine controller 6, so that whether the load power taking circuit 3 is communicated or not can be coupled with the working condition of the engine, and further the condition that the load power taking circuit 3 is electrified under the condition that the engine is started is ensured, and the condition that the external load power consumption is overlarge to cause the power shortage of the storage battery 1 is prevented.

Optionally, the load taking circuit 3 includes: a second control circuit 31 connected to the battery 1 and at least one power supply circuit 32;

the second control circuit 31 includes: a control main, at least one control branch connected with the control main, and a second relay 33 connected in series in each control branch, wherein the first contact is connected in series in the control main;

each power supply loop 32 is connected with each control branch through a second relay 33, the control branch is connected with a second coil of the second relay 33, and the power supply loop is connected with a second contact of the second relay 33;

the second relay 33 is used for closing the power supply loop 32 under the drive of the second coil for supplying power, so that the power supply loop 32 is supplied with power.

The load taking circuit 3 comprises a second control circuit 31 and at least one power supply circuit 32, and the second control circuit 31 and the power supply circuit 32 are connected with the storage battery 1. The second control loop 31 is used to control the communication of the power supply loop 32.

The second control loop 31 includes a control main and at least one control branch connected to the control main, and the first contact is connected in series in the control main to control communication of the control main. Each control branch of the second control loop 31 is used to control the communication of one power supply loop 32.

The second relay 33 includes a second coil, which is a control circuit, and a second contact, which is a controlled circuit. The second coil is an electromagnet in nature, and when energized, generates magnetism, and generates attraction force on the second contact which is made of iron or other metal with magnetic attraction, so that the second contact is closed under the action of the attraction force.

A second relay 33 is connected in series in each control branch, and the power supply loop 32 is connected with the control branch through the second relay 33. The second coil of the second relay 33 is connected in series in the control branch, and the second contact of the second relay 33 is connected in series in the supply circuit 32.

When the first contact is closed and the control trunk is connected, the second coil is energized, and the second contact is attracted to power the power supply circuit 32.

Optionally, the circuit further comprises: a fuse 34 connected in series in the power supply loop 32.

The fuse 34, i.e. the current fuse, is a kind of fuse link, mainly functioning as overload protection. When the power supply circuit 32 fails or is abnormal, the current will increase continuously, thereby damaging important or valuable devices in the circuit, and even burning the circuit or causing a fire. To prevent such a situation, the fuse 34 blows when the current rises to a threshold value to cut off the current, thereby functioning as a protection circuit for safe operation.

Optionally, the circuit further comprises a control switch 35 connected in series on the control branch, the control switch being configured to control the communication of the control branch when the control switch 35 is closed.

To meet the different control demands of the user for different external loads, a control switch 35 is also required to be connected in series on the control branch.

In the case of actuation of the first contact, the control switch 35 on the respective control branch is closed, so that the control branch forms a circuit. After the control branch is closed, the second coil connected in series on the control branch is electrified to attract the second contact, so that the power supply loop 32 corresponding to the control switch 35 is electrified.

Optionally, the current outflow of the second control loop 31 is grounded.

Alternatively, the negative electrode of the battery 1 is grounded.

In order to reduce the number of circuit connection wires in the external load control circuit of the vehicle, the grounded negative electrode of the storage battery 1 and the grounded current outflow end of the second control circuit 31 form a circuit through the ground connection between the grounded ends of the two.

Optionally, a power take-off port 36 for connecting an external load is connected in series in the power supply loop 32.

To facilitate connection and termination of an external load to the power circuit 32, a power take-off port 36 may also be connected to the power circuit 32. The external load is connected in series into the power supply loop 32 through the power take-off port 36. A common power take-off 36 may be a socket interface.

The third aspect of the utility model provides a vehicle external load control system, which comprises the vehicle external load control circuit.

The fourth aspect of the utility model provides a vehicle comprising the vehicle external load control system.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device comprising the element.

The external load control circuit, the external load control system and the external load control vehicle provided by the utility model are described in detail, and specific examples are applied to the principle and the implementation mode of the utility model, and the description of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present utility model, the present disclosure should not be construed as limiting the present utility model in summary.

Claims

1. An external load control circuit for a vehicle, comprising:

the system comprises a storage battery, a first control loop and a load power taking loop which are respectively connected with the storage battery, a vehicle body controller connected with the first control loop and a first relay; the first coil of the first relay is connected in series in the first control loop, and the first contact of the first relay is connected in series in the load power-taking loop;

2. The circuit of claim 1, wherein the circuit further comprises: an engine controller connected to the vehicle body controller;

3. The circuit of claim 1, wherein the load extraction loop comprises: the second control loop is connected with the storage battery and at least one power supply loop;

4. The circuit of claim 3, wherein the circuit further comprises: and the fuse is connected in series in the power supply loop.

5. The circuit of claim 3, wherein the circuit further comprises: and the control switch is connected in series with the control branch and is used for controlling the control branch to be communicated under the condition of closing.

6. A circuit according to claim 3, wherein the current outflow of the second control loop is grounded.

7. The circuit of claim 1, wherein the negative electrode of the battery is grounded.

8. A circuit according to claim 3, wherein the power supply loop is connected in series with a power take-off port for connecting an external load.

9. An external load control system for a vehicle, comprising the external load control circuit for a vehicle according to any one of claims 1 to 8.

10. A vehicle comprising the vehicle offboard load control system of claim 9.