KR102474802B1 - System and Method for controlling Power seat of vehicle - Google Patents

Abstract

A power seat control system of a vehicle according to an embodiment of the present invention outputs a voltage divided by a switch unit provided with a plurality of switches, and generates a wake-up signal corresponding to the output voltage, and the switch device and a control device for controlling the power seat of the vehicle based on the voltage output from the wake-up signal.

Description

System and method for controlling power seat of vehicle {System and Method for controlling Power seat of vehicle}

The present invention relates to a system and method for controlling a power seat of a vehicle, and more particularly, to a technique for generating a wake-up signal corresponding to an input of a voltage distribution type switch.

In general, as for seats installed inside the vehicle, a driver's seat and a passenger's seat are located on the side of the driver's seat at the front side of the interior, and left and right rear seats are installed at the rear side of the interior, respectively.

Meanwhile, various electronic control systems are applied to vehicles. As a result, various devices and systems inside the vehicle, which were manually controlled in the past, are also electronically controlled.

Among them, controlling the position of a vehicle seat is also an example. In the past, the position was controlled by rotating or pulling the lever, but recently, a method of electronically controlling it has emerged.

For example, when the engine of the vehicle is turned on, the position of the vehicle seat set to suit the body shape of the driver may be automatically controlled before driving.

In general, a power seat of a vehicle is to maintain a seated posture of an occupant, and is configured to have a seat cushion and a seat back on a seat frame moving on a seat rail. In addition, a sliding device and a reclining device are provided at the rear of the seat rail and the seat frame to maintain a posture suitable for driving and to maintain a posture suitable for the body shape of the occupant.

In this power seat device, electric energy is changed into physical movement energy when the occupant manipulates a lever or switch with their hands, and the sliding and reclining device operates to move the seat in the forward and backward directions or adjust the tilt angle of the seat back. .

In recent years, in terms of promoting the convenience of occupants, a power seat (also referred to as a memory seat) is widely used to operate the seat by electric power using a switch.

However, such a conventional power seat device requires a switch, a number of wires, connector pins, control pins, etc. to receive a plurality of switch signals, and the weight and size of the power seat due to the necessary switches, wires and pins There are increasing problems.

[Patent Document] Korean Patent Publication No. 2017-0089679.

An object of the present invention is to generate a common (single) wake-up signal corresponding to each switch by using a switch of a voltage distribution method, thereby using a switch signal and a wake-up signal provided by a switch device to control the vehicle It is to provide a power seat control system and method of a vehicle capable of controlling a power seat.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

A power seat control system of a vehicle according to an embodiment of the present invention outputs a voltage divided by a switch unit provided with a plurality of switches, and generates a wake-up signal corresponding to the output voltage, and the switch device and a control device for controlling the power seat of the vehicle based on the voltage output from the wake-up signal.

In one embodiment, the switch device may output a voltage divided by a switch unit provided with the plurality of switches to the control device.

In one embodiment, the switch unit may include a plurality of switches including a forward switch and a reverse switch, a plurality of diodes, and resistors.

In one embodiment, the switch device generates a wake-up signal that corresponds to a voltage divided by a switch unit including the plurality of switches, and outputs the generated wake-up signal to the control device. wealth may be included.

In one embodiment, the control device may include an interrupt unit receiving the wake-up signal, a conversion unit receiving a voltage output from a switch unit including the plurality of switches and converting the received voltage, and the wake-up signal. And it may include a control unit for controlling the power seat of the vehicle based on the output voltage.

A method for controlling a power seat of a vehicle according to an embodiment of the present invention includes outputting a voltage divided by a switch unit provided with a plurality of switches, generating a wake-up signal corresponding to the output voltage, and the switch device. and controlling a power seat of the vehicle based on the voltage output from and the wake-up signal.

In one embodiment, the step of outputting the divided voltage includes outputting the divided voltage to a control device.

In an embodiment, generating the wakeup signal may include generating one wakeup signal corresponding to a voltage distributed from a switch unit including the plurality of switches.

In an embodiment, after generating the wakeup signal, outputting the generated wakeup signal to a control device may be included.

In one embodiment, the step of controlling the power seat of the vehicle based on the voltage and the wakeup signal output from the switch device includes receiving the wakeup signal, output from a switch unit provided with the plurality of switches The method may include receiving the received voltage, converting the received voltage, and controlling a seat of the vehicle based on the wake-up signal and the output voltage.

According to the vehicle power seat control system and method according to an embodiment of the present invention, the vehicle seat can be controlled using a switch signal provided by a switch unit and a wake-up signal provided by a wake-up generating unit.

According to the power seat control system and method of a vehicle according to an embodiment of the present invention, by using a common wake-up signal (signal for performing a wake-up function using one interrupt pin) generated from a plurality of switches, The weight, size or number of wire pins and connector pins may be reduced.

1 is a configuration diagram schematically illustrating a power seat control system of a vehicle according to an embodiment of the present invention.
2 is a view specifically illustrating a method for controlling a power seat of a vehicle according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating timing of generating a wakeup signal by a wakeup generating unit provided in a power seat control system of a vehicle according to an embodiment of the present invention.
4 is a diagram showing a computing system executing a method for controlling a power seat of a vehicle according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. In addition, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

1 is a configuration diagram schematically illustrating a power seat control system of a vehicle according to an embodiment of the present invention.

Referring to FIG. 1 , a vehicle power seat control system 10 includes a switch device 100 and a control device 200.

The switch device 100 outputs voltages distributed by a plurality of switches and generates a wake-up signal corresponding to the output voltages. The switch device 100 includes a switch unit 110 and a wakeup generation unit 120 .

The switch unit 110 is configured to protrude from the side structure of the seat of the vehicle, and functions as a slide, recline, tilt, height, headrest, cushion, etc. Includes multiple switches for seat adjustment. Through this, the driver or passenger can find the optimal seat position with a simple operation. Here, the slide switch is the first switch 111, the recline switch is the second switch 112, the tilt switch is the third switch 113, the height switch is the fourth switch 114, and the headrest switch is the fifth switch (115), which is only an example for helping understanding of the present invention, and is not limited thereto.

The switch unit 110 outputs the voltages divided by each switch (switch that distributes each voltage) to the conversion unit 220 of the control device 200. For example, the switch unit 110 may output prop power (eg, 5V) to the wake-up generation unit 120 and output a forward signal and a backward signal to the control device 200 . Specifically, the divided voltage may be output from the switch device 100 and input from the control device 200, and the switch device 100 may include one wire connected between the switch device 100 and the control device 200, A forward signal and a backward signal may be output to the control device 200 using a connector pin or a control pin (or an interrupt pin). For example, 5V generated from the first switch 111 (slide switch) in the switch device 100 is a signal with a VCC voltage (signal without input), 3.4V to 4V is a slide advance signal, and 2V to 2.7V is a signal It can be represented by a slide backward signal.

The switch unit 110 includes a plurality of switches including a forward switch 11 and a reverse switch 12 and includes a plurality of diodes 13 and resistors 14 . For example, the diode 13 may block the voltage continuously output from the switch unit 110 to the wake-up generation unit 120 from being applied when the switch unit 110 operates and power is applied. , The resistor 14 may prevent a phenomenon in which the output voltage decreases by generating a falling edge of an interrupt pin of the control device 200 .

The wakeup generator 120 generates a common (single) wakeup signal corresponding to a voltage output from each switch of the switch unit 110 . For example, the wakeup generation unit 120 receives all output voltages from the first switch 111 to the fifth switch 115 and generates a common (single) wakeup signal.

The wakeup generation unit 120 outputs the generated wakeup signal to the interrupt unit 210 of the control device 200 .

The control device 200 controls the power seat of the vehicle by using the voltage output from the switch device 200 and the wakeup signal received from the wakeup generating unit 120 . This control device 200 includes an interrupt unit 210, a conversion unit 220 and a control unit 230.

The interrupt unit 210 receives a wake-up signal from the wake-up generating unit 120 of the switch device 100 .

The converter 220 includes an analog to digital converter (ADC), receives a voltage output from each switch of the switch device 100, and converts the received voltage.

The control unit 230 controls driving of a seat motor (not shown) according to the wake-up signal received by the interrupt unit 210 and the conversion unit 220 and the output voltage to control a seat (not shown) of the vehicle. For example, the seat motor is configured to output a driving force so that the seat is adjusted according to the operation of the switch device 100, and thus corresponds to a general technology, and thus a detailed description thereof will be omitted.

2 is a view specifically illustrating a method for controlling a power seat of a vehicle according to an embodiment of the present invention.

Referring to FIG. 2 , the switch unit 110 may output voltages divided by each switch (switch for distributing each voltage) to the conversion unit 220 of the control device 200 . For example, the switch unit 110 may output prop power (eg, 5V) to the wake-up generation unit 120 and output a forward signal and a backward signal to the control device 200 . Specifically, the divided voltage may be output from the switch device 100 and input from the control device 200, and the switch device 100 may include one wire connected between the switch device 100 and the control device 200, A forward signal and a backward signal may be output to the control device 200 using a connector pin or a control pin (or an interrupt pin). For example, 5V generated from the first switch 111 (slide switch) in the switch device 100 is a signal with a VCC voltage (signal without input), 3.4V to 4V is a slide advance signal, and 2V to 2.7V is a signal It can be represented by a slide backward signal.

The switch unit 110 includes a plurality of switches including a forward switch 11 and a reverse switch 12 and includes a plurality of diodes 13 and resistors 14 . For example, when the switch unit 110 operates and power is applied, the diode 13 blocks the voltage continuously output from the switch unit to the wake-up generating unit from being applied, and the resistor 14 blocks the control device 200 from being applied. It is possible to prevent a phenomenon in which the output voltage decreases by generating a falling edge of the interrupt pin of ).

FIG. 3 is a diagram illustrating timing of generating a wakeup signal by a wakeup generating unit provided in a power seat control system of a vehicle according to an embodiment of the present invention.

Referring to FIG. 3, looking at the method of generating the wake-up signal of the wake-up generation unit 120 in detail, the first switch (eg, a slide switch generating a divided voltage, 111) has no input signal ( No input, 5V), forward signal (eg 3.7V), reverse signal (eg 2.38V), and a second switch (eg recline switch that generates a divided voltage) , 112) may operate with a no input signal, a forward signal (eg, 3.7V), or a backward signal (eg, 2.38V). Here, the signal without input is 5V, and means a signal in a state where the VCC voltage is applied. For example, the power seat control system 10 of the vehicle generates a wake-up signal generated from the wake-up signal generator 120 corresponding to the output voltages of the first switch 111 and the second switch 112. timing can be known.

In the first period, the first switch 111 changes the voltage output from a signal without input to a forward signal (eg, 3.7V) or a backward signal (eg, 2.38V), and the second switch (eg, 2.38V) 112) is in the state of a signal with no input, the wakeup signal generator 120 is in a sleep state and generates a wakeup signal corresponding to the voltage output from the first switch 111.

In the second period, since the first switch 111 and the second switch 112 are in a signal state with no input, the wakeup signal generator 120 is in a sleep state.

In the third period, the first switch 111 is in a signal state with no input, and the second switch 112 is in a signal state with no input, forward signal (eg, 3.7V), reverse signal (eg, For example, when the voltage output to 2.38V) changes, the wakeup signal generator 120 is in a sleep state and generates a wakeup signal corresponding to the voltage output from the second switch 112. do.

In the fourth period, since the first switch 111 and the second switch 112 are in a state of signals with no input, the wakeup signal generator 120 is in a sleep state.

In the fifth period, the first switch 111 changes the voltage output as a forward signal (eg, 3.7V) from the signal state without input, and the second switch 112 changes the state of the signal without input. In this case, the wakeup signal generator 120 is in a sleep state and generates a wakeup signal corresponding to the voltage output from the first switch 111 .

In the sixth period, the first switch 111 changes the output voltage in the state of a forward signal (eg, 3.7V), a backward signal (eg, 2.38V), and a signal without an input, and the second When the voltage output as the forward signal (eg, 3.7V) or the reverse signal (eg, 2.38V) of the switch 112 changes, the first switch 111 and the second switch 112 At the same time, a wake-up signal corresponding to the output voltage is generated.

4 is a diagram showing a computing system executing a method for controlling a power seat of a vehicle according to an embodiment of the present invention.

Referring to FIG. 4 , a computing system 1000 includes at least one processor 1100, a memory 1300, a user interface input device 1400, a user interface output device 1500, and a storage connected through a bus 1200. 1600, and a network interface 1700.

The processor 1100 may be a central processing unit (CPU) or a semiconductor device that processes commands stored in the memory 1300 and/or the storage 1600 . The memory 1300 and the storage 1600 may include various types of volatile or nonvolatile storage media. For example, the memory 1300 may include read only memory (ROM) and random access memory (RAM).

Accordingly, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be directly implemented as hardware executed by the processor 1100, a software module, or a combination of the two. A software module resides in a storage medium (i.e., memory 1300 and/or storage 1600) such as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, or a CD-ROM. You may. An exemplary storage medium is coupled to the processor 1100, and the processor 1100 can read information from, and write information to, the storage medium. Alternatively, the storage medium may be integral with the processor 1100. The processor and storage medium may reside within an application specific integrated circuit (ASIC). An ASIC may reside within a user terminal. Alternatively, the processor and storage medium may reside as separate components within a user terminal.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: Vehicle's power seat control system
11: forward switch
12: reverse switch
13: diode
14: Resistance
100: switch device
110: switch unit
111: first switch
112: second switch
113: third switch
114: fourth switch
115: 5th switch
120: wake-up generating unit
200: control device
210: interrupt unit
220: conversion unit
230: control unit
1000: computing system
1100: processor
1200: system bus
1300: memory
1310: ROM
1320: RAM
1400: user interface input device
1500: user interface output device
1600: storage
1700: network interface

Claims (10)

a switch device that outputs a voltage divided by a switch unit having a plurality of switches and generates one wake-up signal corresponding to the output voltage; and
A control device for controlling a power seat of a vehicle based on the voltage output from the switch device and the wake-up signal.
including,
The switch device,
and a wake-up generation unit for generating the one wake-up signal corresponding to a voltage distributed by the switch unit or in a sleep state corresponding to the state of a signal having no input of all of the plurality of switches. Power seat control system of a vehicle characterized by. The method of claim 1,
The switch device,
Power seat control system of a vehicle, characterized in that for outputting the voltage distributed in the switch unit provided with the plurality of switches to the control device. The method of claim 1,
The switch unit,
The power seat control system of a vehicle, characterized in that it comprises the plurality of switches, a plurality of diodes and resistors including a forward switch and a reverse switch. The method of claim 1,
The wake-up generation unit,
Power seat control system of a vehicle, characterized in that for outputting the wake-up signal to the control device. The method of claim 1,
The control device,
an interrupt unit receiving the wake-up signal;
a conversion unit for receiving a voltage output from the switch unit provided with the plurality of switches and converting the received voltage; and
Power seat control system of a vehicle, characterized in that it comprises a control unit for controlling the power seat of the vehicle based on the wake-up signal and the output voltage. outputting a divided voltage from a switch unit provided with a plurality of switches;
generating one wake-up signal corresponding to a voltage distributed by the switch unit or being in a sleep state corresponding to the state of a signal having no input of all of the plurality of switches; and
Controlling a power seat of a vehicle based on a voltage output from a switch device including the switch unit and the wakeup signal. The method of claim 6,
In the step of outputting the divided voltage,
A method for controlling a power seat of a vehicle, comprising the step of outputting the divided voltage to a control device. delete The method of claim 6,
After generating the wake-up signal,
A method for controlling a power seat of a vehicle, comprising the step of outputting the generated wake-up signal to a control device. The method of claim 6,
Controlling the power seat of the vehicle based on the voltage output from the switch device and the wake-up signal,
receiving the wake-up signal;
receiving a voltage output from a switch unit provided with the plurality of switches, and converting the received voltage; and
Controlling a seat of the vehicle based on the wake-up signal and the output voltage.

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