CN206871005U - Automobile car locking rear car carries the power supply configuration system of auxiliary power interface - Google Patents

Abstract

The utility model discloses a power supply configuration system for a vehicle-mounted auxiliary power supply interface after the car is locked, which includes a vehicle-mounted entertainment system, a power supply control system, a relay, a vehicle storage battery and a vehicle-mounted auxiliary power supply interface. The vehicle-mounted entertainment system and the vehicle-mounted auxiliary power supply interface The power control system is connected through CAN bus communication, and the power control system is electrically connected with the relay, the vehicle battery and the vehicle auxiliary power interface, the vehicle battery is electrically connected with the relay, and the relay is electrically connected with the vehicle auxiliary power interface . The utility model sets the on-off state of the vehicle-mounted auxiliary power supply interface through the vehicle-mounted entertainment system, and assists the design of the main controller circuit of the vehicle-mounted auxiliary power supply interface, so as to realize the configurable power supply scene of the vehicle-mounted auxiliary power supply interface, and can meet the needs of users. In the scene of power supply after locking the car, it can maintain the storage of the vehicle to the maximum extent and meet the needs of the cold start of the vehicle.

Description

The power supply configuration system of the vehicle auxiliary power interface after the car is locked

technical field

The utility model relates to the technical field of power supply configuration of a vehicle-mounted auxiliary power supply interface, in particular to a power supply configuration system for a vehicle-mounted auxiliary power supply interface after the car is locked.

Background technique

With the increasing development of automotive electronics technology, the vehicle-mounted cigarette lighter has been gradually canceled and replaced by the vehicle-mounted auxiliary power interface. For the sake of vehicle safety, major OEMs have changed the power supply source of the vehicle-mounted auxiliary power interface from the initial direct connection to the battery. Change to a direct-connect battery that can be switched off. Generally, it starts to be switched on after the on-board ACC gear is turned on, so as to meet the auxiliary use of the vehicle.

In recent years, as more and more car owners pay attention to driving safety, they have installed driving recorders. With the rapid development of driving recorder technology, many driving recorders have their own parking monitoring functions. However, the on-board auxiliary power interface cannot provide continuous power supply after parking, so this function cannot be realized on some vehicles. Some car owners even change the vehicle wiring harness by themselves, leading a section of wiring harness from the vehicle battery to supply power to the driving recorder, ignoring the risks brought about by changing the wiring without permission.

Utility model content

The utility model aims at the problems and deficiencies of the prior art, and provides a novel power supply configuration system for an on-board auxiliary power supply interface after the car is locked.

The utility model solves the problems of the technologies described above through the following technical solutions:

The utility model provides a power supply configuration system for a vehicle-mounted auxiliary power supply interface after the car is locked. The entertainment system and the power control system are connected through CAN bus communication, the power control system is electrically connected with the relay, the vehicle battery and the vehicle auxiliary power interface, the vehicle battery is electrically connected with the relay, and the relay is connected with the vehicle auxiliary power interface The interface is electrically connected.

Preferably, the power supply control system includes an MCU, a driver chip and a power supply circuit, the MCU is electrically connected to the power supply circuit, the power supply circuit is electrically connected to the vehicle battery, and the vehicle battery is electrically connected to the first input terminal of the relay, The power supply circuit is electrically connected to the driver chip, the driver chip is electrically connected to the second input end of the relay, the output end of the relay is electrically connected to the vehicle auxiliary power interface, and the MCU is respectively connected to the vehicle battery and the vehicle auxiliary power supply The interface is electrically connected.

Preferably, the power control system further includes other chips, and the power supply circuit is electrically connected to the other chips.

On the basis of conforming to common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain the preferred examples of the present utility model.

The positive progressive effect of the present utility model is:

The utility model sets the on-off state of the vehicle-mounted auxiliary power interface through the vehicle-mounted entertainment system, and assists the design of the main controller circuit of the vehicle-mounted auxiliary power interface, so as to realize the configurable purpose of the power supply scene of the vehicle-mounted auxiliary power interface, and can meet the needs of users. In the scene of power supply after locking the car, it can maintain the storage of the vehicle to the maximum extent and meet the needs of the cold start of the vehicle.

Description of drawings

Fig. 1 is a schematic circuit diagram of a power supply configuration system in a preferred embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, this embodiment provides a power supply configuration system for the vehicle auxiliary power interface after the car is locked, which includes a vehicle entertainment system 1, a power control system 2, a relay 3, a vehicle battery 4 and a vehicle Auxiliary power interface 5.

The vehicle entertainment system 1 and the power control system 2 are connected through the CAN bus communication, the power control system 2 is electrically connected with the relay 3, the vehicle battery 4 and the vehicle auxiliary power interface 5, the vehicle battery 4 and the relay 3 Electrically connected, the relay 3 is electrically connected to the vehicle auxiliary power supply interface 5.

Further, the power control system 2 includes an MCU 21, a driver chip 22, a power supply circuit 23 and other chips 24 (that is, other electronic components in the power control system 2 except the MCU 21, the driver chip 22 and the power supply circuit 23 are other chips).

The MCU 21 is electrically connected to the power supply circuit 23 through the channel 1, the power supply circuit 23 is electrically connected to the vehicle battery 4, the vehicle battery 4 is electrically connected to the first input terminal of the relay 3, and the power supply circuit 23 is electrically connected to the first input end of the relay 3 through the channel 2. It is electrically connected with the driver chip 22 and the other chips 24, the power supply circuit 23 is electrically connected with the driver chip 22 through the channel 3, the driver chip 22 is electrically connected with the second input terminal of the relay 3, and the output terminal of the relay 3 It is electrically connected to the vehicle auxiliary power interface 5 , the MCU 21 is electrically connected to the vehicle battery 4 through the channel 4 , and the MCU 21 is electrically connected to the vehicle auxiliary power interface 5 through the channel 5 .

The user sets the on-off state of the vehicle auxiliary power supply interface 5 after the vehicle is locked on the screen of the vehicle entertainment system 1, and the vehicle entertainment system 1 transmits the setting information of the vehicle auxiliary power supply interface 5 to the power control system 2 through the CAN bus. The information includes power-on (enabling) of the vehicle-mounted auxiliary power interface after the vehicle is locked and power-off (disabled) of the vehicle-mounted auxiliary power interface after the vehicle is locked; The vehicle entertainment system 1 transmits the current status of the vehicle auxiliary power interface 5 , and the vehicle entertainment system 1 displays the current status of the vehicle auxiliary power interface 5 to the user.

When the user sets the on-board auxiliary power interface 5 to enable after the vehicle is locked, the power supply circuit 23 cuts off the power supply of the internal channel 2, and the drive chip 22 latches the driving state and provides energy supply through the channel 3, thereby realizing the power control system 2 low power modes.

When the user sets the vehicle auxiliary power interface 5 to be enabled after the vehicle is locked, the power control system 2 monitors the status of the channel 5 (ie, the vehicle auxiliary power interface 5) to determine whether the vehicle auxiliary power interface 5 is connected to a relevant load. When the detection result is no load, the MCU 21 turns off the latch state of the driver chip 22, and the driver chip 22 is set to the shutdown mode. At this time, the power supply relay 3 of the vehicle auxiliary power supply interface 5 is turned off, so that the quiescent current of the whole vehicle reaches minimum, meeting the relevant vehicle storage time requirements; when the detection result is loaded, the MCU 21 turns on the state of the drive chip 22 and latches it, drives the coil end of the relay 3 through the drive chip 22, and pulls the vehicle battery through the pull-in of the relay 3 4 is connected with the vehicle auxiliary power supply interface 5, so as to achieve the purpose of supplying power to the load.

Moreover, when the load is connected to the vehicle-mounted power supply auxiliary interface 5, in order to prevent the risk that the vehicle battery 4 is exhausted, the power control system 2 monitors the state of the channel 4 (i.e. the vehicle battery 4), and according to the vehicle battery capacity, depth of discharge, aging degree and temperature, as follows:

V=f(Soc, Dod, θ _Aije , e _Tem )

Calculate the voltage value that satisfies the next cold start, and cut off the power supply of the vehicle auxiliary power interface 5 when it is detected that the vehicle voltage reaches this critical value.

Through the above set of strategies, it is possible to meet the scene of power supply after the user locks the car, and to maintain the storage of the vehicle to the maximum extent to meet the cold start requirements of the vehicle.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (3)

1. A power supply configuration system for a vehicle-mounted auxiliary power supply interface after the car is locked, it is characterized in that it includes a vehicle-mounted entertainment system, a power supply control system, a relay, a vehicle battery and a vehicle-mounted auxiliary power supply interface, the vehicle-mounted entertainment system It is connected with the power supply control system through CAN bus communication, the power supply control system is electrically connected with the relay, the vehicle battery and the vehicle auxiliary power interface, the vehicle battery is electrically connected with the relay, and the relay is electrically connected with the vehicle auxiliary power interface connect. 2. The power supply configuration system of the vehicle-mounted auxiliary power interface after the car is locked as claimed in claim 1, wherein the power supply control system includes an MCU, a driver chip and a power supply circuit, the MCU is electrically connected to the power supply circuit, and the power supply The circuit is electrically connected to the vehicle battery, the vehicle battery is electrically connected to the first input end of the relay, the power supply circuit is electrically connected to the drive chip, the drive chip is electrically connected to the second input end of the relay, and the output of the relay The terminal is electrically connected to the vehicle auxiliary power interface, and the MCU is electrically connected to the vehicle battery and the vehicle auxiliary power interface respectively. 3. The power supply configuration system of the vehicle auxiliary power interface after the car is locked according to claim 2, wherein the power control system further comprises other chips, and the power supply circuit is electrically connected to the other chips.