KR19990059873A - Continuously variable transmission - Google Patents
Continuously variable transmission Download PDFInfo
- Publication number
- KR19990059873A KR19990059873A KR1019970080087A KR19970080087A KR19990059873A KR 19990059873 A KR19990059873 A KR 19990059873A KR 1019970080087 A KR1019970080087 A KR 1019970080087A KR 19970080087 A KR19970080087 A KR 19970080087A KR 19990059873 A KR19990059873 A KR 19990059873A
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- South Korea
- Prior art keywords
- pulley
- variable diameter
- variable
- torque converter
- backward
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/26—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members with members having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/46—Inputs being a function of speed dependent on a comparison between speeds
- F16H2059/465—Detecting slip, e.g. clutch slip ratio
- F16H2059/467—Detecting slip, e.g. clutch slip ratio of torque converter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
- F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
- F16H2061/66295—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members characterised by means for controlling the geometrical interrelationship of pulleys and the endless flexible member, e.g. belt alignment or position of the resulting axial pulley force in the plane perpendicular to the pulley axis
Abstract
직경 가변 풀리의 작동구조를 개선하여 컴팩트한 제작이 이루어지도록 하고 원가를 절감시키기 위하여,In order to improve the operation structure of the variable diameter pulley to achieve a compact manufacturing and to reduce the cost,
엔진으로부터 동력을 전달받아 토오크를 변환시키는 토오크 컨버터와, 토오크 컨버터를 통하여 전달받은 구동력을 전진 또는 후진에 적합하도록 변환하는 전후진 제어수단과, 상기한 토오크 컨버터로부터 출력되는 회전동력을 전달받아 주행상태에 따라 직경 가변 풀리를 벨트 전동으로 무단 변속을 이루되 직경 가변 풀리의 직경가변이 액츄에이터로 이루어진다.Torque converter for converting torque by receiving power from the engine, Forward and reverse control means for converting the driving force transmitted through the torque converter to be suitable for forward or backward, and the driving state is received by the rotational power output from the torque converter According to the variable speed pulley to achieve a continuously variable belt transmission, the variable diameter of the variable diameter pulley consists of an actuator.
따라서 엔진의 구동력을 토오크 컨버터가 전달받아 차량의 주행상태에 따라 적절하게 토오크를 변환하여 전후진 제어수단에 전달한다. 이때 전후진 제어수단은 차량의 전진 또는 후진을 제어하여 차량의 원활한 주행이 이루어지도록 한다. 계속해서 직경 가변 풀리에 연결되는 벨트를 통하여 전달되는 엔진의 구동력은 직경 가변 풀리의 직경가변이 이루짐으로서 무단 변속이 이루어지게 되는 데, 직경 가변 풀리는 전기에 의하여 구동되는 액츄에이터에 의하여 이동풀리가 가변하게 되어 무단 변속이 이루어지고 종감속장치로 전달되어 차량의 주행이 이루어진다.Therefore, the torque converter receives the driving force of the engine and converts the torque appropriately according to the driving state of the vehicle and transmits it to the forward and backward control means. At this time, the forward and backward control means controls the forward or backward of the vehicle to ensure smooth running of the vehicle. Subsequently, the driving force of the engine transmitted through the belt connected to the variable diameter pulley is continuously variable as the diameter of the variable diameter pulley is made, and the variable diameter pulley is variable by the actuator driven by electricity. The speed change is continuously made and transmitted to the longitudinal reduction gear, thereby driving the vehicle.
그러므로 직경 가변 풀리의 변위 이동이 간단한 구조의 액츄에이터 및 기구적인 구조로 제어됨으로서 컴팩트한 제작이 가능하고 원가를 절감시킬 수 있다.Therefore, the displacement movement of the variable diameter pulley is controlled by the actuator and the mechanical structure of the simple structure, it is possible to compact production and to reduce the cost.
Description
본 발명은 엔진의 구동력이 차량의 주행상태에 따라 무단으로 변속이 이루어지도록 하기 위한 변속장치에 관한 것이다.The present invention relates to a transmission for allowing the driving force of the engine to be continuously shifted according to the driving state of the vehicle.
일반적으로 차량의 변속장치는 엔진의 구동력을 구동륜에 전달하는 기능을 갖고 있는데, 이러한 변속장치에는 운전자의 의지대로 운전자가 직접 변속단을 선택하는 수동 변속장치와, 차량의 주행조건에 따라 자동적으로 변속이 이루어지는 자동 변속장치와, 각 변속단 사이에 특정한 변속 영역이 없이 무단으로 연속적인 변속이 이루어지는 무단 변속장치로 대별된다.In general, the transmission of the vehicle has a function of transmitting the driving force of the engine to the drive wheels. Such a transmission includes a manual transmission in which the driver directly selects a shift stage at the driver's will, and automatically shifts according to the driving conditions of the vehicle. These automatic transmissions are divided into a continuously variable transmission in which continuously continuous shifts are made without a specific speed change region between the respective shift stages.
상기와 같은 변속장치에 있어서, 본 발명은 유압을 이용하는 자동변속장치의 단점을 보완하여 연비 및 동력 전달성능, 그리고 중량면에서 큰 장점을 갖는 무단 변속장치에 관계하며, 이의 무단 변속장치는 입력축과 출력축에 장착되는 풀리의 직경 변위를 이용하는 방식이 주로 사용되고 있다.In the above-described transmission device, the present invention relates to a continuously variable transmission having great advantages in terms of fuel economy, power transmission performance, and weight by supplementing the disadvantages of the automatic transmission using hydraulic pressure, and the continuously variable transmission thereof has an input shaft. The method using the diameter displacement of the pulley mounted on the output shaft is mainly used.
이러한 무단 변속장치는 토오크 컨버터와 무단 변속수단 또는 무단 변속수단과 차동장치 사이등에 전,후진 제어 수단이 배치되어 전진 및 후진을 제어할 수 있도록 이루어진다.Such a continuously variable transmission includes a forward converter and a reverse control means disposed between the torque converter and the continuously variable transmission means or between the continuously variable transmission means and the differential device so as to control forward and backward movements.
상기한 전,후진 제어수단은 유성기어셋트가 이용되고 있다.The planetary gear set is used as the forward and reverse control means.
상기 유성기어셋트로 이용되는 전,후진 제어수단은, 전진 구동시에 구동축이 구동풀리와 직결로 이루어져 1:1로 동력을 전달하는 구조로 이루어진다.The forward and backward control means used as the planetary gear set has a structure in which the drive shaft is directly connected to the driving pulley at the time of forward driving to transmit power 1: 1.
상기한 종래의 무단 변속장치는 작동상에는 별문제가 없으나, 보다 간단한 구조로서 설계해야만 원가절감을 도모할 수 있으나 이에 충분히 만족하지 못하는 문제점이 있다.The conventional continuously variable transmission has no problem in operation, but can be designed to have a simpler structure to reduce costs, but there is a problem that is not satisfactory enough.
본 발명은 이러한 종래기술의 문제점을 해결하기 위하여 안출된 것으로써, 본 발명의 목적은 직경 가변 풀리의 작동구조를 개선하여 컴팩트한 제작이 이루어지도록 하고 원가를 절감시키는 무단 변속장치를 제공하는 데 있다.The present invention has been made to solve the problems of the prior art, an object of the present invention is to provide a continuously variable transmission to reduce the cost and to make a compact manufacturing by improving the operation structure of the variable diameter pulley. .
도1은 본 발명의 실시예를 설명하기 위한 벨트식 무단 변속기의 구성도,1 is a configuration diagram of a belt type continuously variable transmission for explaining an embodiment of the present invention;
도2는 도1의 주요부를 도시한 구성도이다.FIG. 2 is a configuration diagram showing the main part of FIG.
본 발명의 무단 변속장치는,The continuously variable transmission of the present invention,
엔진으로부터 동력을 전달받아 토오크를 변환시키는 토오크 컨버터와;A torque converter configured to convert torque by receiving power from an engine;
토오크 컨버터를 통하여 전달받은 구동력을 전진 또는 후진에 적합하도록 변환하는 전후진 제어수단과,Forward and backward control means for converting the driving force transmitted through the torque converter to be suitable for forward or backward,
상기한 토오크 컨버터로부터 출력되는 회전동력을 전달받아 주행상태에 따라 직경 가변 풀리를 벨트 전동으로 무단 변속을 이루되 직경 가변 풀리의 직경가변이 액츄에이터에 의하여 이루어지는 무단 변속수단을 포함한다.It receives the rotational power output from the torque converter to achieve a continuously variable diameter variable pulley belt transmission in accordance with the driving state, the variable speed of the variable diameter pulley comprises an endless speed shift means made by the actuator.
따라서 엔진의 구동력을 토오크 컨버터가 전달받아 차량의 주행상태에 따라 적절하게 토오크를 변환하여 전후진 제어수단에 전달한다.Therefore, the torque converter receives the driving force of the engine and converts the torque appropriately according to the driving state of the vehicle and transmits it to the forward and backward control means.
이때 전후진 제어수단은 차량의 전진 또는 후진을 제어하여 차량의 원활한 주행이 이루어지도록 한다.At this time, the forward and backward control means controls the forward or backward of the vehicle to ensure smooth running of the vehicle.
계속해서 직경 가변 풀리에 연결되는 벨트를 통하여 전달되는 엔진의 구동력은 직경 가변 풀리의 직경가변이 이루짐으로서 무단 변속이 이루어지게 되는 데, 직경 가변 풀리는 전기에 의하여 구동되는 액츄에이터에 의하여 이동풀리가 가변하게 되어 무단 변속이 이루어지고 종감속장치로 전달되어 차량의 주행이 이루어진다.Subsequently, the driving force of the engine transmitted through the belt connected to the variable diameter pulley is continuously variable as the diameter of the variable diameter pulley is made, and the variable diameter pulley is variable by the actuator driven by electricity. The speed change is continuously made and transmitted to the longitudinal reduction gear, thereby driving the vehicle.
이하, 본 발명에 따른 바람직한 실시예를 도면을 참조하여 보다 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
도1은 본 발명에 따른 실시예를 도시한 무단 변속기의 구성도로서, 엔진(1)의 구동력을 전달받아 토오크 변환을 발생시키는 토오크 컨버터(3)와, 상기한 토오크 컨버터(3)를 통하여 동력을 전달받아 전후진을 제어하는 전후진 제어수단(5)과, 이 전후진 제어수단(5)을 통하여 전달받은 구동력을 무단 변속하는 무단 변속수단(7)을 도시하고 있다.1 is a configuration diagram of a continuously variable transmission according to an embodiment of the present invention, which includes a torque converter 3 that receives torque from a driving force of an engine 1 to generate a torque conversion, and powers through the torque converter 3 described above. It shows the forward and backward control means (5) for controlling the forward and backward, and the continuously variable transmission means for continuously shifting the driving force transmitted through the forward and backward control means (5).
상기한 토오크 컨버터(3)는 엔진(1)의 구동력을 전달받아 차량의 주행상태에 따라 직결시키거나 또는 적절하게 토오크 변환함으로써 차량이 원활하게 주행하기 위한 것이다.The torque converter 3 is for driving the vehicle smoothly by being directly connected to the driving state of the vehicle by receiving the driving force of the engine 1 or by converting the torque appropriately.
그리고 전후진 제어수단(7)은 입력요소 및 선택적으로 반력요소를 가지며 또한 출력요소를 가지는 유성기어셋트 및 이를 선택적으로 제어하기 위한 다판 클러치(9)(11)로 이루어지고 있다.The forward and backward control means 7 consists of a planetary gear set having an input element and optionally a reaction force element and an output element, and a multi-plate clutch 9 and 11 for selectively controlling it.
본 실시예에서는 전후진 제어수단으로서 더블피니언 유성기어셋트를 도시하고 있으나, 이에 한정되는 것은 아니며 싱글피니언 유성기어 셋트로도 가능하며 전후진을 제어할 수 있는 것이면 어느 것이나 가능하다.In the present embodiment, the double pinion planetary gear set is illustrated as the forward and backward control means, but the present invention is not limited thereto, and any single pinion planetary gear set may be used as long as it can control the forward and backward movement.
그리고 무단 변속수단(7)은 구동축(8)상에 배치되는 직경가변 구동풀리(19)와, 피동축(21)에 설치되어 구동풀리(19)와 벨트(23)에 의하여 전동되는 직경가변 피동풀리(25)로 이루어진다.In addition, the continuously variable transmission means 7 includes a variable diameter drive pulley 19 disposed on the drive shaft 8, and a variable diameter drive driven by the drive pulley 19 and the belt 23 provided on the driven shaft 21. It consists of a pulley 25.
상기한 구동풀리(19) 및 피동풀리(25)는 고정풀리(27)(29)와 이동풀리(31)(33)로 나누어진다.The driving pulley 19 and the driven pulley 25 are divided into fixed pulleys 27 and 29 and moving pulleys 31 and 33.
이때 이동풀리(31)(33)는, 도2에 도시하고 있는 바와 같이, 컨트롤러(51)에 의하여 제어되는 모터(53)에 의하여 직경이 가변되는 구조로 이루어지고 있다.At this time, the moving pulleys 31 and 33 have a structure in which the diameter is changed by the motor 53 controlled by the controller 51, as shown in FIG.
상기한 모터(53)의 축상에는 기어(55)가 고정 결합되어 모터(55)의 구동에 따라 회전이 이루어지며, 이 기어(55)와 슬라이딩 기어(57)가 치합되며 이동풀리(31)(33)의 회전축상에 고정된다.On the shaft of the motor 53, the gear 55 is fixedly coupled and rotates according to the driving of the motor 55. The gear 55 and the sliding gear 57 are engaged with each other, and the movable pulley 31 ( 33) is fixed on the rotation axis.
그리고 슬라이딩 기어(57)의 일측에는 풀리 포지션 센서(59)가 배치되어 컨트롤러(51)와 연결되는 센싱값을 컨트롤러(51)에 전달할 수 있는 구조로 이루어진다.And the pulley position sensor 59 is disposed on one side of the sliding gear 57 is made of a structure that can transmit the sensing value connected to the controller 51 to the controller 51.
상기한 모터(53)의 축상에 고정되는 기어(55)와 슬라이딩 기어(57)는 기어(55)의 회전에 따라 이동풀리(31)(33)가 축방향으로 이동할 수 있도록 치합된다.The gear 55 and the sliding gear 57 fixed on the shaft of the motor 53 are engaged so that the movable pulleys 31 and 33 move in the axial direction as the gear 55 rotates.
이와 같이 이루어지는 무단 변속장치는, 엔진(1)에서 토오크 컨버터(3) 측으로 동력이 전달되면 토오크 컨버터(3)에서 적절하게 동력을 변환하여 토오크 컨버터(3)와 연결되는 전후진 제어수단(5)으로 전달한다.In the continuously variable transmission configured as described above, when power is transmitted from the engine 1 to the torque converter 3 side, the forward and backward control means 5 connected to the torque converter 3 by appropriately converting power in the torque converter 3 is provided. To pass.
이 전후진 제어수단(5)으로 전달되는 구동력 다판 클러치(9)(11)를 통하여 선택적으로 유성기어셋트로 전달되어 전진 또는 후진으로 구동력이 변화되어 전달된다.The drive force is transmitted to the planetary gear set selectively through the drive force multi-plate clutches 9 and 11 transmitted to the forward and backward control means 5 so that the drive force is changed forward or backward.
이렇게 전후진 제어수단(5)을 통하여 전진 또는 후진으로 필요에 따라 차량의 주행방향이 전환된 구동력은 계속해서 구동풀리(19)로 전달된다. 그러면 구동풀리(19)는 벨트(23)를 통하여 피동풀리(25)로 전달되는 데, 이때 구동풀리(19) 및 피동풀리(19)는 이동풀리(31)(33)의 직경가변에 의하여 무단 변속이 이루어진다.The driving force in which the driving direction of the vehicle is switched as necessary to move forward or backward through the forward and backward control means 5 is continuously transmitted to the drive pulley 19. Then, the driving pulley 19 is transmitted to the driven pulley 25 through the belt 23, wherein the driving pulley 19 and the driven pulley 19 are endless by the variable diameter of the moving pulleys 31 and 33. Shift is made.
상기 이동풀리(31)(33)의 직경가변은, 풀리 포지션센서(59)에 의하여 센싱된 신호를 입력받아 컨트롤러(51)에서 소정의 제어신호를 모터(53)에 전송한다. 그러면 모터(53)는 회전하게 되고 모터(53)의 축에 결합된 기어(55)가 동시에 회전하게 되어 슬라이딩 기어(57)를 축방향으로 제어된 신호값만큼 점선 화살표 방향으로 이동시키게 된다.The variable diameter of the movable pulleys 31 and 33 receives a signal sensed by the pulley position sensor 59 and transmits a predetermined control signal to the motor 53 by the controller 51. Then, the motor 53 is rotated and the gear 55 coupled to the shaft of the motor 53 is rotated at the same time to move the sliding gear 57 in the direction of the dotted arrow by the signal value controlled in the axial direction.
따라서 이동풀리(31)(33)의 이동에 따라 구동풀리(19) 및 피동풀리(33)의 직경이 가변되어 벨트(23)에 의하여 무단 변속이 이루어져 종감속장치(61)로 엔진(1)의 구동력을 전달하여 차량의 주행이 이루어지도록 하는 것이다.Accordingly, the diameters of the driving pulleys 19 and the driven pulleys 33 are varied according to the movements of the moving pulleys 31 and 33 so that the speed change is performed continuously by the belt 23 and the engine 1 as the longitudinal reduction gear 61. By driving the driving force of the vehicle is to be made.
따라서 본 발명의 무단 변속장치는, 직경 가변 풀리의 변위 이동이 간단한 구조의 액츄에이터 및 기구적인 구조로 제어됨으로서 컴팩트한 제작이 가능하고 원가를 절감시킬 수 있다.Therefore, the continuously variable transmission of the present invention is controlled by an actuator and a mechanical structure having a simple displacement movement of the variable diameter pulley, thereby making it possible to manufacture compactly and reduce cost.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970080087A KR100298751B1 (en) | 1997-12-31 | 1997-12-31 | Continuously variable transmission device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970080087A KR100298751B1 (en) | 1997-12-31 | 1997-12-31 | Continuously variable transmission device |
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| Publication Number | Publication Date |
|---|---|
| KR19990059873A true KR19990059873A (en) | 1999-07-26 |
| KR100298751B1 KR100298751B1 (en) | 2001-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970080087A KR100298751B1 (en) | 1997-12-31 | 1997-12-31 | Continuously variable transmission device |
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| Country | Link |
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| KR (1) | KR100298751B1 (en) |
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