KR101380574B1 - Door Control System For Vehicle - Google Patents

Abstract

Disclosed is a vehicle door control system capable of controlling a door without wiring between the junction box of the vehicle and the door control device. The vehicle door control system is mounted on a door of a vehicle, receives a door control signal, drives a control object according to the door control signal, transmits driving state information of the control object and charging state information of a battery, and induction power source. A door control device receiving power from the battery to charge the battery; And transmitting door control signals and data for controlling the control target, receiving the driving state information and the battery state information signal from the door control device, and generating the induction power based on the battery state information. Contains a junction box.

Description

Door Control System for Vehicles

The present invention relates to a vehicle door control apparatus, and more particularly, to a vehicle door control system that can control the door without wiring between the junction box of the vehicle and the door control device.

As the application of communication in a vehicle increases rapidly, the wiring is also increasing in size, but the reduction of power-related components is not progressing. For example, there are still problems such as electric wires for supplying power to the door, grommet for protecting them, and through holes connecting with the vehicle body.

In the case of the conventional door wiring, the wiring is connected from the inside of the vehicle to the door side through a wiring harness, and wiring up to 50 circuits or more is required. Due to the increased wiring, larger and larger vehicles require greater force to open and close the door. In addition, a problem of waterproofing of the part connecting the door and the vehicle body and a problem of bending breakage due to deterioration of durability due to opening and closing may be expected, and it is also an essential evaluation item for the relevant item when developing a vehicle.

An example of a system for improving such door wiring is disclosed in Korean Patent Registration No. 10-0579960. The power supply and signal connection system of a vehicle sliding door disclosed in Korean Patent No. 10-0579960 includes a battery inside a sliding door movably installed in a vehicle body, a power circuit connected to the battery to operate a driving unit of an electric device, and An optical signal transmission and reception device for receiving a driver's signal in a power supply circuit is provided, and an optical signal transmission and reception device for transmitting a signal to an optical signal transmission and reception device provided in the sliding door is installed on the vehicle body side, and the battery is a rechargeable battery. And a power supply means for supplying power to the rechargeable battery, the power connector being protruded at the tip of the sliding door so as to be electrically connected to the connector of the vehicle body, and connected to the power connector to supply power to the rechargeable battery. Sliding degree by having a charging circuit The vehicle having the control unit performs a wireless transmission and reception by eliminating a signal line and a power line, and by using a rechargeable battery built in the sliding door as a power source to enable the driving of an electrical device such as a power window, thereby improving design freedom. It is to improve the operating performance of the sliding door.

However, the above patent uses an optical cable for signal transmission, and since wiring for battery charging is required, wiring is still required for the door.

Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle door control system capable of driving and controlling various devices of a vehicle door without wiring.

According to an aspect of the present invention, a door control apparatus for a vehicle includes a door control device installed on a door of a vehicle and a junction box installed inside the vehicle, wherein the door control device includes the junction box. The control target installed in the door of the vehicle is driven according to the door control signal received from the vehicle, and the electric power is supplied to the control target by charging the internal battery by the induction power received from the junction box. The door control signal is transmitted to the junction box according to the driving state information of the control target received from the door control device, and the induction power is generated according to the battery state information received from the door control device.

The door control apparatus may further include a first control radio for receiving the door control signal, driving the control target according to the door control signal, and transmitting driving state information of the control target and charging state information of the battery. Transceiver; The battery for supplying power to the control target and the first control radio transceiver; An inductive coupler receiver for receiving induction power from the junction box; And a battery charger configured to rectify electricity generated by the inductive coupler receiver, provide rectified power to the battery, and provide charging state information of the battery to the first control wireless transceiver.

In addition, the junction box transmits the door control signal and data for controlling the control target, and a second control radio transceiver for receiving the driving state information and the battery state information signal from the first control radio transceiver. And an inductive coupler transmitter for providing charging power to the inductive coupler receiver based on the battery state information provided by the second control radio transceiver.

The control object may include at least one of an outside mirror, an audio speaker, a power window, and a door lock.

In addition, the first control radio transceiver or the first control radio transceiver may include a Bluetooth module.

The inductive coupler transmitter may be configured to rapidly charge the battery when the vehicle is running and the vehicle is under light load, and to fully charge the battery when the vehicle is under heavy load operation. Can be charged at low speed.

The inductive coupler transmitter may stop charging the battery when the vehicle is stopped for a predetermined time and the door is locked.

The inductive coupler transmitter may resume charging the battery when the user inputs a manual switch while the charging of the battery is stopped.

According to the present invention, by wirelessly controlling various devices of the door and wirelessly charging the battery used as the power source, the wiring of the door can be completely removed, and the charging of the battery is controlled according to the driving state of the vehicle. Therefore, overdischarge of the main battery B + of the vehicle can be prevented.

1 is a block diagram showing a vehicle door control system according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating battery charge control of the door control system for a vehicle shown in FIG. 1.

Hereinafter, embodiments and examples of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

It should be understood, however, that the present invention may be embodied in many different forms and is not limited to the embodiments and examples described herein. In the drawings, the same reference numbers are used throughout the specification to refer to the same or like parts.

Throughout this specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

1 is a block diagram illustrating a vehicle door control system according to an exemplary embodiment of the present invention, and FIG. 2 is a flowchart illustrating battery charge control of the vehicle door control system illustrated in FIG. 1.

First, referring to FIG. 1, a vehicle door control system according to the present invention includes a door control device 100 mounted on a door (not shown) of a vehicle and a junction box 200 mounted on a vehicle body (not shown). It consists of.

The door control device 100 includes a control target 110, a first control radio transceiver 120, a battery 130, an inductive coupler receiver 140, and a battery charger 150.

The control object 110 includes an outside mirror 111, an audio speaker 112, a power window 113, and a door lock 114.

The first control radio transceiver 120 receives a door control signal, and according to the door control signal, the control object 110, that is, the outside mirror 111, the audio speaker 112, the power window 113, and the like. The door locks 114 are respectively controlled. In addition, the first control radio transceiver 120 transmits driving state information of the control target 110 and information on the state of charge of the battery 130 to the second control radio transceiver 301. The door control signal includes audio data for driving the audio speaker 112.

The battery 130 supplies power required for the operation of the control target 110 and the first control radio transceiver 120. The battery 130 preferably includes a secondary battery.

The inductive coupler receiver 140 receives power from the inductive coupler transmitter 203 which will be described below in a non-contact manner, and provides the supplied power to the battery charger 150.

The battery charging unit 150 rectifies the electricity generated by the inductive coupler receiving unit 140 and provides the rectified power to the battery 130 to charge the battery 130. In addition, the battery charger 150 provides the charging state information of the battery 130 to the first control wireless transceiver 120.

In addition, the junction box 200 includes a second control wireless transceiver 201, an inductive coupler transmitter 203, and a DC / AC inverter 205.

The second control radio transceiver 201 transmits a door control signal and data for controlling the control target 110, and receives the driving state information and the battery state information signal from the first control radio transceiver 120. Receive.

The inductive coupler transmitter 203 provides charging power to the inductive coupler receiver 140 based on the battery state information provided by the second control radio transceiver 201.

The DC / AC inverter 205 converts the main battery (B +) power of the vehicle into AC and provides it to the inductive coupler transmitter 203.

The first control radio transceiver 120 and the second control radio transceiver 201 may use a Bluetooth communication method for mutual wireless communication.

On the other hand, the inductive coupler transmitter 203 controls the charging of the battery 130 to improve the efficiency of the main battery B + of the vehicle.

Referring to FIG. 2, the inductive coupler transmitter 203 checks the charging state of the battery 130 based on the battery state information input through the second control radio transceiver 201 (S1).

Subsequently, it is examined whether the state of charge of the battery satisfies a condition for performing battery charging (eg, less than 50% of the maximum charge amount of the battery), and if not, proceeds to step S1 to continue the state of charge. Investigate with (S2).

When the charging condition is satisfied, the inductive coupler transmitter 203 checks whether the vehicle is driving (S3).

As a result of checking in step S3, when the vehicle is running and the current driving is light load driving (power consumption of the vehicle is less than a predetermined amount), the inductive coupler transmitter 203 rapidly charges the battery 130. When the driving of the vehicle is not the light load, the battery 130 is slowly charged (S4 to S6).

Subsequently, when the battery 130 is charged at a predetermined level, for example, 80% or more of the buffer, the inductive coupler transmitter 203 charges the charge of the battery 130 at low speed (S7 and S8).

On the other hand, when the result of the check in step S3, the vehicle is not driving, the inductive coupler transmitter 203 determines whether the state of charge of the battery 130 is in good condition or needs to be charged, and as a result of the determination, charging is required In this case, the battery 130 is slowly charged (S9, S10).

The inductive coupler transmitter 203 stops charging the battery 130 when the vehicle is stopped for a predetermined time and the door is opened for a long time (S11 and S12).

The inductive coupler transmitter 203 resumes the charging of the battery 130 when there is a manual switch input by the user in the state where the charging of the battery 130 is stopped (S13 and S14).

Therefore, according to the above configuration, the various devices of the door are wirelessly controlled, the battery used for the power source is wirelessly charged, and the charging of the battery is controlled according to the driving state of the vehicle, thereby Over discharge can be prevented.

In addition to the above-described algorithm, an additional algorithm may be applied to improve battery efficiency. Battery efficiency can be improved by reducing the operating speed of electrical loads such as power window loads according to the power (voltage * current) of the receiver receiving wireless power transmission. For example, opening the window during driving is more common than operating with the door open.In this case, the motor output can be output at maximum output, and when operating with the door open, depending on the amount of door opening. It is possible to use a method of increasing or decreasing the control speed. The door opening amount is based on the time when the door is closed, and the relative door opening amount can be obtained by using the voltage and current values of the inductive power supply. This part has the advantage of checking the door opening with power transmission efficiency in place of the existing mechanical door opening device.

If the door is not open, the driver may choose to adjust the acceleration or deceleration speed in conjunction with the driver's door according to the driver's request, or to control the operation speed according to the door opening amount. Can improve battery life.

In addition, when the vehicle is locked, the rear door except for the driver's seat and the passenger seat may be controlled so as to reduce energy waste for charging when the vehicle is stopped for a long time. For such control, the communication module for wireless communication selects a power saving mode to maintain a sleep state, and when a radio wave is applied from the outside, identifies a ID and applies a function to determine whether the module is operated or not, and thus wakes up unnecessary. Can be minimized.

While the present invention has been particularly shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Anyone with knowledge will be able to make various modifications.

100: door control device 110: control target
120: first control radio transceiver 130: battery
140: inductive coupler receiving unit 150: battery charging unit
111: outside mirror 112: audio speakers
113: power window 114: door lock
200: junction box
201: second control wireless transceiver 203: inductive coupler transmitter
205: DC / AC Inverter

Claims (8)

A door control system for a vehicle including a door control device installed on a door of a vehicle and a junction box installed inside the vehicle,
The door control device generates driving state information of a control target installed on a door of a vehicle and charging state information of a battery and transmits the generated state information to the junction box, and a control target installed on the door of the vehicle according to a door control signal received from the junction box. Drive the battery, and charge the internal battery by the induction power received from the junction box to supply power to the control target,
The junction box generates and transmits the door control signal to the door control device according to the driving state information of the control target received from the door control device, and according to the battery charge state information received from the door control device. Determine whether the battery is charged to generate the induction power,
The junction box stops charging the battery when the vehicle is stopped for a predetermined time and the door is opened, and when the user has a manual switch input while charging of the battery is stopped, A vehicle door control system, characterized by resuming charging. The method of claim 1, wherein the door control device
A first control radio transceiver for receiving the door control signal, driving the control object according to the door control signal, and transmitting driving state information of the control object and charging state information of the battery;
The battery for supplying power to the control target and the first control radio transceiver;
An inductive coupler receiver for receiving induction power from the junction box; And
And a battery charger configured to rectify electricity generated by the inductive coupler receiver, provide rectified power to the battery, and provide charging state information of the battery to the first control wireless transceiver. Door control system. The method of claim 2, wherein the junction box
A second control radio transceiver for transmitting the door control signal and data for controlling the control target, and receiving the driving state information and the battery state information signal from the first control radio transceiver, and
And an inductive coupler transmitter for providing charging power to the inductive coupler receiver based on the battery state information provided by the second controlling radio transceiver. The method of claim 3,
And the first control radio transceiver or the second control radio transceiver comprises a bluetooth module. The method of claim 3, wherein the inductive coupler transmitter
When the vehicle is running and light load operation, the battery is rapidly charged, when the vehicle is running heavy load, the battery is slow charging, and when the vehicle is stationary low-speed charging for the vehicle Door control system. delete delete The method of claim 1, wherein the control target
A vehicle door control system comprising at least one of an outside mirror, an audio speaker, a power window and a door lock.

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