KR100231575B1 - Electrically controlled steering system - Google Patents

Electrically controlled steering system Download PDF

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Publication number
KR100231575B1
KR100231575B1 KR1019970007558A KR19970007558A KR100231575B1 KR 100231575 B1 KR100231575 B1 KR 100231575B1 KR 1019970007558 A KR1019970007558 A KR 1019970007558A KR 19970007558 A KR19970007558 A KR 19970007558A KR 100231575 B1 KR100231575 B1 KR 100231575B1
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South Korea
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steering
control unit
electronic control
steering wheel
output
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KR1019970007558A
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Korean (ko)
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KR19980072649A (en
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유재웅
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류정열
기아자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/008—Control of feed-back to the steering input member, e.g. simulating road feel in steer-by-wire applications
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/22—Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/303—Speed sensors

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Power Steering Mechanism (AREA)

Abstract

본 발명은 자동차의 조향장치에 관한 것으로서, 조향핸들의 조작감이 향상되도록 하고 설치공간이 축소되도록 하기 위해, 유압에 의해 앞바퀴(10)의 방향을 제어하는 동력조향구동장치(50)가 전자제어유니트(60)의 출력측에 제어 가능하게 연결되고, 상기 전자제어유니트(60)에 앞바퀴(10)의 회전속도를 감지하는 속도센서(80)와 조향핸들(40)의 회전상태에 따라 가변적인 전기신호를 출력하는 핸들각도출력장치(70)가 각기 통전 가능하게 연결되어, 상기 조향핸들(40)의 회전상태에 따라 상기 핸들각도출력장치(70)에서 일정 가변 전압이 전자제어유니트(60)에 입력되도록 하고, 상기 전자제어유니트(60)에서 입력되는 가변전압을 연산하여 제어신호를 상기 동력조향구동장치(50)에 출력하며, 상기 속도센서(80)의 입력신호를 상기 전자제어유니트(60)에서 연산 처리하여 조향핸들(40)의 조작무게를 제어하도록 하는 전자제어 조향장치이다.The present invention relates to a steering apparatus of a vehicle, in order to improve the operation feeling of the steering wheel and to reduce the installation space, the power steering drive device 50 for controlling the direction of the front wheel 10 by hydraulic pressure is an electronic control unit The control unit is connected to the output side of the control unit 60, and the electrical signal is variable according to the rotation state of the speed sensor 80 and the steering wheel 40 to detect the rotational speed of the front wheel 10 to the electronic control unit 60. Handle angle output device 70 for outputting the power is connected to each other, the predetermined variable voltage from the handle angle output device 70 is input to the electronic control unit 60 in accordance with the rotation state of the steering wheel 40 The control signal is output to the power steering drive device 50 by calculating the variable voltage input from the electronic control unit 60, and the input signal of the speed sensor 80 is output to the electronic control unit 60. Operation And an electronic control device for steering operation to control the weight of a steering wheel (40).

Description

전자제어 조향장치Electronically controlled steering

본 발명은 자동차의 조향장치에 관한 것으로서, 주행상황을 입력받는 전자제어장치에 의해 앞바퀴를 제어하도록 하여, 조향핸들의 조작감이 향상되도록 하고 설치공간이 축소되도록 하는 것이다.The present invention relates to a steering apparatus of a vehicle, and to control the front wheels by an electronic control device that receives a driving situation, so that the steering wheel steering feeling is improved and the installation space is reduced.

일반적으로 자동차는 차체의 선단부 양측과 후단부 양측 저면부에 각기 바퀴가 회전구동 가능하게 장치되고, 상기 바퀴에 회전구동 가능하게 연결되는 동력전달장치가 동력을 발생하는 기관에 구동 가능하게 연결되며, 상기 앞쪽의 바퀴에는 조향장치가 방향전환이 가능하도록 연결되어, 기관에서 발생된 동력이 동력전달장치에 의해 앞바퀴 또는 뒤바퀴를 구동하도록 하고, 조향장치의 제어에 의해 차량의 방향전환이 가능하도록 한다.In general, a vehicle is rotatably driven at each of the front end portions of the vehicle body and both bottom surfaces of the rear end portion thereof, and a power transmission device rotatably connected to the wheels is operatively connected to the engine generating power. The steering wheel is connected to the front wheel so as to be able to change direction, so that the power generated from the engine drives the front wheel or the rear wheel by the power transmission device, and enables the direction of the vehicle to be controlled by the steering device. .

여기에서, 종래 자동차의 조향장치는 도 1에 도시되는 바와 같이, 차체 전면 양측의 앞바퀴(10)에 조향기어(20)가 연동 가능하게 연결되고, 조향기어(20)가 유니버어설조인트에 의해 조향축(30)에 구동 가능하게 연결되며, 조향축(30)의 상단부에 조향핸들(40)이 연동 가능하게 체결되어 있다. 한편, 조향축(30)은 외주면에 원통파이프형의 스티어링칼럼이 씌워지며, 하단부가 운전석 전면부를 이루는 대쉬판넬을 관통하여 설치되고, 상단부가 계기판넬이 장치되는 인스트루먼트판넬에 고정되어 있다.Here, in the conventional vehicle steering apparatus, as shown in FIG. 1, the steering gear 20 is connected to the front wheels 10 on both sides of the front of the vehicle body so as to be interlocked, and the steering gear 20 is steered by a universal snow joint. It is operably connected to the shaft 30, the steering wheel 40 is coupled to the upper end of the steering shaft 30 so as to interlock. On the other hand, the steering shaft 30 is covered with a cylindrical pipe-shaped steering column on the outer circumferential surface, the lower end is installed through the dash panel forming the front part of the driver's seat, the upper end is fixed to the instrument panel equipped with the instrument panel.

이와같이 구성되는 종래 자동차의 조향장치는, 운전자가 조향핸들(40)을 좌우로 회전시킴에 따라 조향축(30)이 일체로 회전되게 되고, 조향축(30)의 하단부에서 조향기어(20)가 워엄과 기어에 의해 직선운동으로 전환 구동되게 되며, 양측 조향기어(20)의 직선운동에 의해 양측 앞바퀴(10)의 방향이 좌우로 조종되어 주행방향이 조정되도록 한다.In the conventional steering device of the vehicle configured as described above, the steering shaft 30 is integrally rotated as the driver rotates the steering wheel 40 to the left and right, and the steering gear 20 is formed at the lower end of the steering shaft 30. By the worm and the gear is converted to drive in a linear motion, the direction of both front wheels 10 is controlled to the left and right by the linear motion of both steering gear 20 to adjust the driving direction.

이러한 종래 자동차의 조향장치는 조향축(30)과 조향축 외주면에 씌워지는 스티어링칼럼이 실내 운전석에서 대쉬판넬등을 관통하여 기관실쪽 하부로 설치되고, 기어박스와 바퀴로 연결되는 링크들이 기관실 하부쪽에 설치되기 때문에, 그 설치구조가 크고 필요설치공간이 크게 되어 기관실의 레이아웃(lay out) 설정이 어렵고 구조설계가 용이하지 않았으며, 동력구동장치가 부가되지 않은 일반 수동조향장치는 조향핸들(40)의 필요 조작력이 크고, 바퀴로부터 전달되는 진동으로 인한 조작감이 낮은 문제점이 있었다.In the conventional steering device of the automobile, the steering column 30 and the steering column covered on the steering shaft outer circumferential surface are installed at the lower part of the engine room by passing through the dash panel in the indoor driver's seat, and links connected to the gearbox and the wheel are at the lower part of the engine room. Since the installation structure is large and the required installation space is large, the layout of the engine room is difficult to set, and the structural design is not easy, and the general manual steering device without a power drive device is used in the steering wheel 40. The required operating force is large, there was a problem of low operation feeling due to vibration transmitted from the wheel.

본 발명은 앞바퀴의 방향을 조정하는 조향구동장치가 전자제어장치에 의해 제어되도록 하고, 상기 전자제어장치가 주행환경을 감지하는 각종 감지장치의 입력신호를 인가받아 연산처리하도록 하므로, 설치공간이 축소되고 조향핸들의 조작감이 향상되도록 하는데 그 목적이 있다.The present invention allows the steering drive device for adjusting the direction of the front wheel to be controlled by the electronic control device, and the electronic control device receives the input signal from the various sensing devices for sensing the driving environment, so that the installation space is reduced The purpose is to improve the steering handle operation.

도 1은 종래 자동차의 조향장치를 나타내는 개략도1 is a schematic view showing a steering apparatus of a conventional vehicle

도 2는 본 발명의 조향장치를 나타내는 개략도2 is a schematic view showing a steering apparatus of the present invention

도 3은 본 발명의 조향장치를 나타내는 블록도3 is a block diagram showing a steering apparatus of the present invention.

* 도면중 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 앞바퀴 40 : 조향핸들10: front wheel 40: steering wheel

50 : 동력조향구동장치 60 : 전자제어유니트50: power steering drive device 60: electronic control unit

70 : 핸들각도출력장치 80 : 속도센서70: handle angle output device 80: speed sensor

90 : 무선항법장치90: radio navigation device

본 발명은 도 2와 도 3에 도시되는 바와 같이, 유압에 의해 앞바퀴(10)의 방향을 제어하는 동력조향구동장치(50)가 전자제어유니트(60)의 출력측에 제어 가능하게 연결되고, 전자제어유니트(60)에 앞바퀴(10)의 회전속도를 감지하는 속도센서(80)와 조향핸들(40)의 회전상태에 따라 가변적인 전기신호를 출력하는 핸들각도출력장치(70)가 각기 통전 가능하게 연결되어, 조향핸들(40)의 회전상태에 따라 핸들각도출력장치(70)에서 일정 가변전압이 전자제어유니트(60)에 입력되도록 하고, 전자제어유니트(60)에서 입력되는 가변전압을 연산하여 제어신호를 동력조향구동장치(50)에 출력하며, 속도센서(80)의 입력신호를 전자제어유니트(60)에서 연산 처리하여 조향핸들(40)의 조작무게를 제어하도록 구성함을 그 기술적 구성상의 기본 특징으로 한다.2 and 3, the power steering drive device 50 for controlling the direction of the front wheel 10 by hydraulic pressure is controllably connected to the output side of the electronic control unit 60, Handle angle output device 70 for outputting a variable electrical signal according to the rotation state of the steering wheel 40 and the speed sensor 80 for detecting the rotational speed of the front wheel 10 to the control unit 60 can be energized, respectively Connected to each other, a predetermined variable voltage is input to the electronic control unit 60 by the steering wheel angle output device 70 according to the rotational state of the steering wheel 40, and the variable voltage input from the electronic control unit 60 is calculated. The control signal is output to the power steering drive device 50, and the input signal of the speed sensor 80 is processed by the electronic control unit 60 to control the operation weight of the steering wheel 40. It is a basic characteristic on configuration.

이와같이 구성되는 본 발명은, 운전자가 조향핸들(40)을 좌우로 회전 조작함에 따라 조향핸들(40)의 하단부에 의해 핸들각도출력장치(70)가 작동되어 회전방향에 따른 가변전압이 출력되고, 핸들각도출력장치(70)에서 출력되는 전기신호가 전자제어유니트(60)에 입력되면 전자제어유니트(60)에서 상이한 제어신호를 동력조향구동장치(50)에 출력하여 앞바퀴(10)의 방향이 좌우로 조향되도록 한다. 또한, 차량의 주행중 앞바퀴(10)의 회전속도가 속도센서(80)에 의해 감지되어 전자제어유니트(60)에 입력되고, 전자제어유니트(60)에서 입력되는 속도 감지신호를 연산하여 속도비에 따른 일정 제어신호를 핸들각도출력장치(70)에 출력하므로 조향핸들(40)의 조작력을 제어하도록 한다.In the present invention configured as described above, as the driver rotates the steering wheel 40 to the left and right, the steering wheel angle output device 70 is operated by the lower end of the steering wheel 40 to output a variable voltage according to the rotation direction, When the electric signal output from the steering wheel angle output device 70 is input to the electronic control unit 60, the electronic control unit 60 outputs a different control signal to the power steering drive device 50 to change the direction of the front wheel 10. Steer from side to side. In addition, the rotational speed of the front wheel 10 is detected by the speed sensor 80 while driving the vehicle and input to the electronic control unit 60, and the speed detection signal input from the electronic control unit 60 is calculated to calculate the speed ratio. Since a certain control signal according to the output to the handle angle output device 70 to control the operating force of the steering wheel (40).

여기에서, 핸들각도출력장치(70)는 차량의 운전석 전방 상부쪽인 인스트루먼트판넬부에 본체가 설치되고, 본체 내부에 가변전압이 발생되도록 하는 전기발생장치가 장치되며, 조향핸들(40)과 일체로 회전되는 축의 하단부가 상기 본체의 전기발생장치부에 회전 가능하게 장착된다. 또한, 상기 본체 내부에 상기 축의 회전을 전자적으로 제어하는 제어수단이 전자제어유니트(60)에 의해 제어 가능하게 연결된다.Here, the steering wheel angle output device 70 is the main body is installed in the instrument panel, the upper front side of the driver's seat of the vehicle, the electric generating device for generating a variable voltage inside the main body is provided, integral with the steering wheel 40 The lower end of the shaft to be rotated is rotatably mounted to the electric generating unit of the main body. In addition, a control means for electronically controlling the rotation of the shaft inside the main body is controllably connected by the electronic control unit (60).

이러한 핸들각도출력장치(70)는 조향핸들(40)을 좌우로 회전시킴에 따라 하단의 축이 일체로 회전되어 전기발생장치에서 가변적인 전압이 출력되고, 주행환경에 따라 전자제어유니트(60)로 부터 출력되는 제어신호에 의해 제어수단이 전자제어되어 조향핸들(40)의 회전이 가볍거나 무겁도록 한다.As the handle angle output device 70 rotates the steering wheel 40 left and right, the lower axis is integrally rotated so that a variable voltage is output from the electric generating device, and the electronic control unit 60 according to the driving environment. The control means is electronically controlled by the control signal output from the so that the rotation of the steering wheel 40 is light or heavy.

또한, 동력조향구동장치(50)는 통상의 동력조향장치와 유사하며, 단지 유압회로를 제어하는 액츄에이터가 전자제어유니트(60)에 의해 제어 가능하게 연결되어, 전자제어유니트(60)의 제어신호에 따라 액츄에이터가 유압회로를 제어하고, 이로인해 앞바퀴(10)가 좌우로 방향전환되도록 한다.In addition, the power steering drive device 50 is similar to a conventional power steering device, and the actuator for controlling only the hydraulic circuit is connected to be controllable by the electronic control unit 60, the control signal of the electronic control unit 60 According to the actuator controls the hydraulic circuit, thereby allowing the front wheel 10 to be turned left and right.

한편, 본 발명은 무선항법장치(90)가 전자제어유니트(60)에 전자제어 가능하게 연결되도록 하여, 무선항법장치(90)에 의해 수신되는 도로조건을 입력받아 무인조정이 가능하도록 할 수 있다.On the other hand, the present invention may be connected to the electronic navigation unit 60 to the electronic control unit 60 so as to be electronically controllable, it is possible to enable unmanned adjustment by receiving the road conditions received by the radio navigation apparatus 90. .

이와같이 구성되고 작동되는 본 발명은, 조향핸들의 조작이 전자제어유니트를 통해 동력구동장치를 자동제어하도록 하여, 조향축및 스티어링칼럼이 제거되도록 하므로 설치공간이 축소되도록 하고, 앞바퀴에서 전달되는 진동을 차단하여 조향핸들의 조작감이 향상되도록 하는 효과를 갖는다.The present invention constructed and operated as described above allows the steering wheel to automatically control the power drive unit through the electronic control unit so that the steering shaft and steering column are removed so that the installation space is reduced and vibrations transmitted from the front wheels are reduced. Blocking has the effect of improving the steering handle operation.

Claims (1)

차량의 속도를 감지하는 속도센서(80)와, 조향핸들(40)의 회전상태를 전기적인 신호로 출력하는 핸들각도출력장치(70)와, 유압에 의해 앞바퀴(10)의 방향을 제어하는 동력조향구동장치(50)와 상기 속도센서(80)와 핸들각도출력장치(70)에서 출력하는 신호에 따라 앞바퀴의 방향을 제어할 수 있도록 하는 전자제어유닛트(60)를 구비하는 차량에 있어서, 상기 전자제어유닛트(60)의 입력단에 연결되어 도로상황에 대한 무선신호를 입력하여 도로정보를 출력하도록하여 전자제어유닛트(60)가 출력단의 동력조향구동장치(50)로부터 조향핸들의 조작무게를 제어할 수 있도록 하는 무선항법장치(90)가 연결되어 이루어진 전자제어 조향장치.The speed sensor 80 for detecting the speed of the vehicle, the steering wheel angle output device 70 for outputting the rotation state of the steering wheel 40 as an electrical signal, and the power to control the direction of the front wheel 10 by hydraulic pressure In a vehicle provided with a steering drive device (50) and an electronic control unit (60) for controlling the direction of a front wheel according to a signal output from the speed sensor (80) and the steering wheel angle output device (70), Connected to the input terminal of the electronic control unit 60 to input the radio signal for the road situation to output the road information, the electronic control unit 60 controls the operation weight of the steering wheel from the power steering drive device 50 of the output terminal Electronic controlled steering device is connected to the radio navigation device 90 to enable it.
KR1019970007558A 1997-03-07 1997-03-07 Electrically controlled steering system KR100231575B1 (en)

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KR1019970007558A KR100231575B1 (en) 1997-03-07 1997-03-07 Electrically controlled steering system

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KR1019970007558A KR100231575B1 (en) 1997-03-07 1997-03-07 Electrically controlled steering system

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KR100231575B1 true KR100231575B1 (en) 1999-11-15

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KR100804445B1 (en) * 2001-12-27 2008-02-20 주식회사 만도 Gear box of steering system for vehicle

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