KR20180044604A - Memory power seat controlling apparatus in vehicle, and controlling method thereof - Google Patents

Abstract

The present invention relates to a device and a method for controlling a memory power seat. According to the present invention, parts integration is performed with respect to a vehicular memory power seat system and a motor-driving relay is shared so that vehicle weight reduction can be achieved and vehicle manufacturing costs can be reduced based on a decrease in the number of parts. The memory power seat control device includes a power source unit for power supply; a motor unit rotating four motors in response to the power supply and outputting a drive force; a motor drive unit where three relays for driving the four motors are connected to the four motors and driving the four motors via the three relays; a seat portion adjusting a seat in a front-rear direction or an up-down direction in response to the drive force output from the motor unit; a seat manual switch receiving selective input of a command signal for the seat adjustment; a Hall sensor unit detecting the rotational position of the motor; a memory storing the rotational position of the motor corresponding to the seat position; and a control unit using the supplied power as its own power source after a change into a constant voltage and controlling the seat adjustment corresponding to the command signal with the command signal input as a CAN signal from the seat manual switch.

Description

Technical Field [0001] The present invention relates to a memory power seat control apparatus and a control method thereof,

More particularly, the present invention relates to a memory power seat control apparatus for a vehicle, and more particularly, to a memory power seat control apparatus and method for controlling a memory power seat of a vehicle, which is mounted on a lower end portion of a driver's seat of a vehicle, The memory power sheet system, which integrates parts for the auto-regulating memory power seat system and reduces the number of parts by using the relays that drive the motors in common, And a control method thereof.

2. Description of the Related Art Generally, a memory power seat system of a vehicle memorizes the position of a seat or a mirror preset by a driver in a memory, and when a driver rides, And moves the seat to the last room in the case of getting off, and seeks for convenience and ease of operation at the time of getting on and off.

The memory power sheet system includes a constant voltage unit that receives a battery voltage and supplies power, a transceiver that performs communication, and a main control unit (MCU) that performs overall control. Each memory power sheet system uses an integrated circuit Circuit.

The seat of the vehicle is the most used two specifications of 8 Way and 12 Way. 8 Way uses 4 motors, 12 Way uses 6 motors, and controls one motor per one motor.

Therefore, there is a problem in that it is difficult to reduce the size of the product because space restriction is imposed when constructing a necessary part for the product size defined for the seat of the vehicle.

That is, since the conventional memory power sheet system constitutes the constant voltage unit, the communication transceiver and the main control unit (MCU), the price of the product increases, and the relay is controlled by one per motor. There is a problem in that the number of parts is large and the cost is increased.

Korean Patent Registration No. 10-0859273 (registered on September 12, 2008)

SUMMARY OF THE INVENTION An object of the present invention is to provide a memory power seat system which is mounted on a lower end portion of a driver's seat of a vehicle and automatically adjusts the driver's seat to a position stored in a memory in accordance with the driver's body using a motor The present invention provides a memory power seat control apparatus and a control method therefor which can reduce the number of parts and reduce the weight of the vehicle and reduce the cost for manufacturing the vehicle by integrating the components and using the relays for driving the motors in common. .

According to an aspect of the present invention, there is provided a memory power seat control apparatus including: a power supply unit for supplying power; A motor unit for rotating the four motors according to the supplied power to output a driving force; Three motors for driving the four motors are connected to the four motors, and a motor driver for driving the four motors through the three relays; A seat portion for adjusting the seat in the forward and backward directions or the vertical direction according to the driving force outputted from the motor portion; A sheet manual switch for selectively receiving a command signal for adjusting the sheet in the longitudinal direction or the vertical direction; A hall sensor unit for detecting a rotational position of the motor; A memory for storing a rotational position of the motor corresponding to a position of the seat; And a controller for changing the supplied power to a constant voltage and using the power as a self-power source, receiving a command signal from the seat manual switch as a CAN signal, and controlling seat adjustment corresponding to the command signal.

The control unit may include: a constant voltage unit for changing the supplied power to a constant voltage; And

And a CAN communication unit for receiving an input signal of the sheet manual switch as a CAN (Controller Area Network) signal.

In addition, the control unit may further include an external port for receiving the constant-voltage power from the outside.

Also, the control unit receives the command signal from the sheet manual switch via two hard wires for each motor.

Also, the control unit may receive the command signal from the seat manual switch via the reverse voltage prevention and current limiting circuit.

In addition, the four motors may be connected to three relays using one output terminal in common.

The input signal of the seat manual switch is a signal related to a slide, a tilt, a recline, and a height, and the control unit controls the four motors It is possible to control so that the slide operation is finished and the tilting operation is executed without operating simultaneously, or the hardening operation is performed after the re-clamping operation is finished.

According to another aspect of the present invention, there is provided a method of controlling a memory power sheet, including: (a) supplying power from a power source; (b) a sheet manual switch selectively receiving an input signal for adjusting the sheet in the longitudinal direction or the vertical direction; (c) detecting a rotational position of the motor corresponding to a position of the seat corresponding to the input signal; (d) the control unit changes the supplied power to a constant voltage and uses it as its own power supply, receives an input signal from the seat manual switch as a CAN signal, and outputs a seat adjustment command corresponding to the input signal to the motor driving unit ; (e) driving the motor through a relay for operating a motor corresponding to the seat adjusting command among three relays to which the motor driving unit is connected to the four motors; (f) rotating a motor corresponding to the input signal according to a power supplied from the power supply unit to output a driving force; And (g) adjusting the seat in the forward and backward directions or the up and down direction in accordance with the driving force outputted from the motor unit by the seat portion.

In step (b), the input signal of the sheet manual switch includes a slide, a tilt, a recline, and a height signal. In step (d) A sheet adjusting command for controlling the tilting operation to be performed after the slide operation is finished without operating the four motors simultaneously when the slide, tilt, recline, and height signals are input as the input signal, And outputs a seat adjustment command to the motor driving unit to control the height operation to be performed.

Other aspects, advantages and features of the present invention will become more apparent on the basis of the following description in the entire specification, including the following sections: Brief Description of the Drawings, Detailed Description, and Claims.

According to the present invention, it is possible to reduce the wiring weight and the number of components, thereby reducing the weight of the vehicle and reducing the cost of manufacturing the vehicle by integrating the parts and integrating the parts using the relays that drive the motor in common It is effective.

In addition, it is possible to provide an apparatus and method for maintaining the same existing product and function, and differentiating product configuration from motor control.

In addition, by integrating the constant voltage unit, communication transceiver, and MCU control unit and using two relays as a common unit, it is possible to secure the space of the sheet package, reduce the number of parts, reduce the weight, reduce the number of wires, and reduce the production cost .

Further, as a whole view of the vehicle, it is possible to improve the fuel efficiency by reducing the weight of the vehicle, and improve the maintenance by diagnosing the failure at the time of the system failure.

In addition, it can be applied to low-grade vehicles, thereby providing more convenience to consumers.

Since the constant voltage IC and the CAN IC are included in the MCU, there is no need for an external IC, and the number of relays is reduced by one by using one relay per motor operation, and four motors are operated by three relays. There are advantages to be able to.

1 is a block diagram schematically showing a configuration of a memory power seat control apparatus according to an embodiment of the present invention.
2 is a flowchart illustrating a method of controlling a memory power seat according to an embodiment of the present invention.
3 is a block diagram schematically showing an internal configuration of a control unit according to an embodiment of the present invention.
4 is a view showing an input of a sheet manual switch according to an embodiment of the present invention and an operation state of the motor according to the input.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, 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.

If any part is referred to as being "on" another part, it may be directly on the other part or may be accompanied by another part therebetween. In contrast, when a section is referred to as being "directly above" another section, no other section is involved.

The terms first, second and third, etc. are used to describe various portions, components, regions, layers and / or sections, but are not limited thereto. These terms are only used to distinguish any moiety, element, region, layer or section from another moiety, moiety, region, layer or section. Thus, a first portion, component, region, layer or section described below may be referred to as a second portion, component, region, layer or section without departing from the scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified and that the presence or absence of other features, regions, integers, steps, operations, elements, and / It does not exclude addition.

Terms indicating relative space such as "below "," above ", and the like may be used to more easily describe the relationship to other portions of a portion shown in the figures. These terms are intended to include other meanings or acts of the apparatus in use, as well as intended meanings in the drawings. For example, when inverting a device in the figures, certain portions that are described as being "below" other portions are described as being "above " other portions. Thus, an exemplary term "below" includes both up and down directions. The device can be rotated by 90 degrees or rotated at different angles, and terms indicating relative space are interpreted accordingly.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

Hereinafter, embodiments 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. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a block diagram schematically showing a configuration of a memory power seat control apparatus according to an embodiment of the present invention.

1, a memory power seat control apparatus 100 according to the present invention includes a power supply unit 110, a motor unit 120, a motor driving unit 130, a seat unit 140, a control unit 150, a seat manual switch A Hall sensor unit 170, and a memory 180. [

The power supply unit 110 supplies power, and may be a battery or the like mounted on the vehicle.

The motor unit 120 rotates four motors according to the supplied power and outputs a driving force.

The motor driving unit 130 has three relays for driving four motors connected to four motors, and drives four motors through three relays. Here, the four motors can be connected to three relays using one output terminal in common.

The seat portion 140 adjusts the seat in the front-rear direction or the vertical direction according to the driving force output from the motor portion 120. That is, the seat portion 140 can slide the seat according to the driving force of the motor, tilt, recline, height, or the like.

The control unit 150 changes the power supplied from the power supply unit 110 to a constant voltage and uses it as its own power source. The control unit 150 receives a command signal from the sheet manual switch 160 as a CAN signal, do. Here, the controller 150 may be implemented as an integrated circuit (IC) chip, such as an MCU (Main Control Unit) or an ECU (Electronic Control Unit).

3, the control unit 150 includes a constant voltage unit 152 for changing supplied power to a constant voltage; And a CAN communication unit 154 receiving a command signal from the sheet manual switch 160 as a CAN (Controller Area Network) signal. 3 is a block diagram schematically showing an internal configuration of a control unit according to an embodiment of the present invention. 3, the constant voltage unit 152 and the CAN communication unit 154 may be implemented in the form of an integrated circuit (IC) in the controller 150, respectively.

3, the control unit 150 may further include an external port 156 for receiving a constant-voltage power from the outside.

In addition, the control unit 150 receives command signals from the sheet manual switch 160 through two hard wires per motor.

The control unit 150 can receive the command signal from the sheet manual switch 160 via the reverse voltage prevention and current limiting circuit.

The command signal input from the sheet manual switch 160 to the control unit 150 is a signal related to slide, tilt, recline, and height, It is possible to perform control such that the tilting operation is performed after the slide operation is finished or the height operation is performed after the reckling operation is finished.

The seat manual switch 160 receives a command signal for adjusting the seat back and forth direction or up and down direction by the driver.

The hall sensor unit 170 is provided at a position corresponding to the motor, and detects the rotational position of the motor as the rotor of the motor rotates.

The memory 180 stores the rotational position of the motor corresponding to the position of the seat.

2 is a flowchart illustrating a method of controlling a memory power seat according to an embodiment of the present invention.

Referring to FIG. 2, the memory power seat controller 100 according to the present invention first supplies power to each device in the power supply unit 110 (S210).

Thus, each device performs the operation of each device according to the supplied power source.

For example, when power for operation is applied from the power supply unit 110, the control unit 150 changes the constant voltage unit 152 integrated in the MCU to a constant voltage of 5 V to supply the MCU's own power, And supplies power to the product using the external port 156. Products using external 5V voltage can be connected to the voltage output port. In this case, the ECU B +, which is always powered, and the IGN1 power, which receives the back up power, are input to the MCU, and a 5V voltage is used for the MCU and IC operating voltage.

Then, the sheet manual switch 160 selects and inputs a command signal for adjusting the sheet in the longitudinal direction or the vertical direction by the driver (S220).

At this time, the command signal inputted through the seat manual switch 160 includes a slide signal for moving the seat back and forth, a tilt signal for moving the seat upward and downward, A Recline signal for adjusting the height of the seat, and a Height signal for adjusting the height of the seat. That is, the sheet manual switch 160 can be realized by a switch such as a re-line switch, a tilt switch, a slide switch, a height switch, or the like.

The seat manual switch 160 receives inputs from two hardwires per motor, and is a seesaw-type, so that the switches of the same motor are not input at the same time in the switch structure.

However, since the Recline switch is separate, it can be input simultaneously with the Slide, Tilt, and Height switch inputs. Each switch receives an operation signal and transmits it to the MCU through a reverse voltage prevention and current limiting circuit.

There are two types of seat manual switch 160, which are a hard wire and a CAN communication module. In a vehicle configured with a CAN communication module, the seat manual switch does not constitute a circuit configuration. . It is configured for both types of switch configurations.

If the manual switch or the memory switch is a CAN communication module type, it can communicate with the external module (BCM, Cluster, SMK, DDM) for High Speed CAN (500kbps) The CAN Transceiver IC can be configured to send and receive CAN data.

Then, the hall sensor unit 170 detects the rotational position of the motor corresponding to the position of the seat corresponding to the command signal (S230).

That is, the hall sensor unit 170 detects the rotor position of the motor before receiving the input signal through the seat manual switch 160, and after the command signal is inputted through the seat manual switch 160, When the operation is performed, the position of the rotor of the motor corresponding to the position of the seat corresponding to the command signal inputted through the seat manual switch 160 is detected.

The control unit 150 changes the power supplied from the power supply unit 110 to a constant voltage through the constant voltage unit 152 included in the power supply unit 110 and uses the power supply unit as its own power supply. And outputs a seat adjustment command corresponding to the command signal to the motor driving unit 130 based on the rotation position of the motor (S240).

Here, when at least one of the slide, tilt, recline, and height signals is inputted as the command signal inputted from the seat manual switch 160, the controller 150 does not operate the four motors at the same time, It is possible to output a sheet adjustment command to the motor driving unit 130 to control the tilting operation to be completed after the slide operation is finished or to control the height operation to be performed after the re-locking operation is finished. 4 is a view showing an input of a sheet manual switch according to an embodiment of the present invention and an operation state of the motor according to the input. 4, the sheet manual switch 160 receives a signal related to the slide forward direction ON (Slide FWD ON) or the slide direction ON (Slide BWD ON), or a tilt up ON And receives a signal related to tilt down ON.

Next, the motor driving unit 130 drives the corresponding motor through the relays for operating the motor corresponding to the seat adjusting command among the three relays connected to the four motors (S250).

Here, the motor driving unit 130 controls the motor using two common terminals of the motor, not the method of using the relay, which is a driving element of the motor, for each motor individually, so that four motors do not operate at the time of memory reproduction. Because the output of one side of the motor of Slide, Tilt, Recline and Height is used as a common output, tilt operation is performed after the slide operation at the time of memory reproduction, or the Height operation is performed after the Recline operation is finished. The software is configured according to the state table for each switch operation in FIG. 4 so that the motor is operated and four motors can be controlled using three relays.

The motor unit 120 rotates the motor corresponding to the command signal according to the power supplied from the power unit 110, and outputs the driving force (S260).

The hall sensor is installed inside the motor. This hall sensor operates only when the motor rotates, outputs the pulse signal, and the MCU controls the operating power of the hall sensor. The MCU turns off the power of the hall sensor by turning off the power in the sleep mode, and outputs the power to the hall sensor only when it becomes the wake up state and becomes the operating condition of the motor. There are one Hall sensor for each motor. Hall sensors are Hall sensor of 3 pin type such as Vcc / Signal / GND and Hall sensor of 2 pin type of Vcc / Signal.

When the output of the hall sensor is input to the MCU through the connector during operation of the motor, the MCU recognizes the pulse signal of the hall sensor by configuring the full down resistance circuit and the current limit circuit so that the MCU recognizes it. In the MCU, the motor operates only when the hall sensor is normally input, and when an error occurs in the hall sensor, the motor output is turned off to stop the normal waveform.

Here, when the seat manual switch 160 is operated, since the signal output method is different for each switch type, the controller 150 receives information from the hard wire or the CAN signal, determines the I / O port through the internal logic in the MCU, High signal is output, and current is supplied to the coil of the relay to turn on / off the relay to drive the motor such as Slide, Recline, Tilt, Height.

  When the seat position is memorized by using the SET 1 and 2 switches, the seat position is memorized by using a Hall sensor in the motor. Every time the 1 or 2 switch is pressed, the motor unit 120 returns to the memorized position .

Next, the seat portion 140 adjusts the seat in the longitudinal direction or the vertical direction according to the driving force outputted from the motor portion 120 (S270).

That is, the seat portion 140 adjusts the seat to one of slide, tilt, recline, and height motion according to the rotation operation of the motor in accordance with the driving of the motor driving portion 130. For example, as shown in Fig. 4, the seat section 140 performs a recline FWD ON or a recline BWD ON according to the operation of the motor, (Height Up ON) or Height Down On (Height Down ON).

In the present invention, the 12V voltage applied from the external power supply of the automobile can be used as a required voltage in the MCU through the regulator integrated in the MCU, and output to the external terminal for use by other products using the 5V voltage. Therefore, a separate regulator is not needed outside the MCU.

 When the seat manual switch is activated, it is applied to the MCU via a digital current limit circuit and the MCU activates the motor through the switch decision logic condition.

The Hall sensor on the outside of the motor outputs a waveform only when the motor is in operation and applies it to the MCU. The MCU determines whether the motor is in normal operation or error operation. If an error occurs in the Hall sensor, .

Input / output of data necessary for interlocking operation, memory storage / playback, and vehicle diagnosis are transmitted and received as CAN data. Since a CAN transceiver is built in the MCU, a CAN transceiver IC is not required outside the MCU.

When the seat manual operation, sheet memory operation, and getting in / out operation conditions are satisfied, the MCU outputs the motor operation signal. At this time, unlike the conventional method, the output of the motor was 8 To six motors to operate four motors. This reduces the output and reduces the number of wires and reduces the number of components. However, Slide, Tilt, Recline and Height motors can not operate simultaneously. However, there is no change in function.

As described above, according to the present invention, there is provided a memory power sheet system that is mounted on a lower end portion of a driver's seat of a vehicle and automatically adjusts the driver's seat to a position stored in the memory in accordance with the driver's body using a motor. And a relay for driving the motor are commonly used, thereby reducing the number of parts, thereby reducing the weight of the vehicle and reducing the cost for manufacturing the vehicle.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims and their equivalents. Only. It is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. .

100: Memory power seat control device
110:
120:
130:
140: seat portion
150:
160: Seat manual switch
170: Hall sensor unit
180: Memory

Claims (9)

A power supply for supplying power;
A motor unit for rotating the four motors according to the supplied power to output a driving force;
Three motors for driving the four motors are connected to the four motors, and a motor driver for driving the four motors through the three relays;
A seat portion for adjusting the seat in the forward and backward directions or the vertical direction according to the driving force outputted from the motor portion;
A sheet manual switch for selectively receiving a command signal for adjusting the sheet in the longitudinal direction or the vertical direction;
A hall sensor unit for detecting a rotational position of the motor;
A memory for storing a rotational position of the motor corresponding to a position of the seat; And
A control unit for changing the supplied power to a constant voltage and using the power as a self-power source, receiving the command signal from the seat manual switch as a CAN signal, and controlling seat adjustment corresponding to the command signal;
And a memory power control circuit.
The method according to claim 1,
Wherein,
A constant voltage section for changing the supplied power to a constant voltage; And
A CAN communication unit for receiving the command signal from the sheet manual switch as a CAN (Controller Area Network) signal;
And a memory power control circuit.
3. The method of claim 2,
Wherein,
An external port for receiving the constant-voltage power from the outside;
Further comprising: a memory power control circuit for controlling the memory power.
The method according to claim 1,
Wherein the control unit receives the command signal through two hard wires per motor from the seat manual switch.
The method according to claim 1,
Wherein the control unit receives the command signal from the seat manual switch via a reverse voltage prevention and current limiting circuit.
The method according to claim 1,
Wherein the four motors are connected to three relays using one output terminal in common.
The method according to claim 1,
The command signal input from the sheet manual switch is a signal related to a slide, a tilt, a recline, and a height,
Wherein the controller controls the tilting operation to be performed after the slide operation is finished, or controls the tilting operation to be completed and the height operation to be performed when the operation of the seat is not controlled at the same time, .
(a) supplying power from a power supply unit;
(b) a sheet manual switch selectively receiving an input signal for adjusting the sheet in the longitudinal direction or the vertical direction;
(c) detecting a rotational position of the motor corresponding to a position of the seat corresponding to the input signal;
(d) the control unit changes the supplied power to a constant voltage and uses it as its own power source, receives the input signal of the seat manual switch as a CAN signal, and outputs a seat adjustment command corresponding to the input signal to the motor driving unit ;
(e) driving the motor through a relay for operating a motor corresponding to the seat adjusting command among three relays to which the motor driving unit is connected to the four motors;
(f) rotating a motor corresponding to the input signal according to a power supplied from the power supply unit to output a driving force; And
(g) adjusting a seat in a forward or backward direction or a vertical direction according to a driving force outputted from the motor unit;
/ RTI >
9. The method of claim 8,
In the step (b), the input signal of the sheet manual switch includes a slide, a tilt, a recline, and a height signal,
In the step (d), when the slide, tilt, recline, and height signals are input as the input signals, the controller does not operate the four motors at the same time but controls the tilt operation to be performed And a seat adjustment command to control the motor drive to control the height operation to be performed after the recline operation is completed.

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