Control device for continuously variable transmission

A technology of continuously variable transmission and control device, which is applied in the direction of transmission, transmission control, and components with teeth, etc. It can solve the problems of noise and vibration level deterioration, and achieve the effect of reducing noise/vibration and suppressing vibration/noise

Active Publication Date: 2016-05-11
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, the engagement frequency changes depending on the rotation speed of the drive pulley, and when the engagement frequency matches the resonance frequency of the string part, its energy is amplified (to a state close to resonance), resulting in noise and vibration Problems with Grade Deterioration

Method used

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  • Control device for continuously variable transmission
  • Control device for continuously variable transmission
  • Control device for continuously variable transmission

Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0044] figure 1 It is a schematic diagram showing a belt-type continuously variable transmission 1 having a control device according to a first embodiment of the present invention. also, figure 2 It is a schematic diagram of the transmission mechanism unit 10 included in the continuously variable transmission 1 . figure 1 The shown continuously variable transmission 1 has: a transmission input shaft (hereinafter referred to as "input shaft") 2 connected to the output shaft Es of the engine E via a coupling mechanism CP; shaft (hereinafter referred to as "subshaft") 3; a transmission mechanism unit 10 arranged between these two shafts 2 and 3; a forward and reverse switching mechanism 20 arranged on the input shaft 2; 3 on the starting clutch mechanism 40; output transmission gear train 6a, 6b, 7a, 7b; and differential mechanism 8.

[0045] The transmission mechanism part 10 is composed of the following components: a driving pulley 11 arranged on the input shaft 2; a driven...

no. 2 Embodiment approach

[0078] Next, a second embodiment of the present invention will be described. In addition, in the description of the second embodiment and the corresponding drawings, the same reference numerals are assigned to the same or corresponding structural parts as those of the first embodiment, and detailed description of these parts will be omitted below. In addition, matters other than those described below are the same as those of the first embodiment. This point is also the same in other embodiments.

[0079] Figure 8 It is a schematic diagram which shows the schematic structure of the continuously variable transmission 1-2 of 2nd Embodiment of this invention. Compared with the continuously variable transmission 1 of the first embodiment, the continuously variable transmission 1 - 2 of the second embodiment omits the starting clutch mechanism (second power transmission part) 40 provided on the same axis as the driven pulley 16 , Instead, only the forward and reverse switching m...

no. 3 Embodiment approach

[0083] Next, a third embodiment of the present invention will be described. Figure 9 It is a figure which shows the schematic structure of the continuously variable transmission 1-3 which concerns on 3rd Embodiment of this invention. Compared with the continuously variable transmission 1 of the first embodiment, the continuously variable transmission 1-3 of the present embodiment omits the power transmission mechanism provided on the same axis as the drive pulley 11, that is, the forward and reverse switching mechanism (first power transmission part). 20, and only has a starting clutch mechanism (second power transmission part) 40 as a power transmission mechanism coaxial with the driven pulley 16. In addition, reference numeral 60 is a damper provided on the input shaft 2 between the engine E and the drive pulley 16 .

[0084] In the case of the continuously variable transmission 1 - 3 of the present embodiment, only the starting clutch mechanism 40 provided on the same sha...

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Abstract

The invention provides a control apparatus of a continuously variable transmission, which can utilize a simple structure and simple control to inhibit the number of the parts and reduce the noise / vibration generated due to engagement of a metal chain. When any two or three of an engagement frequency of the metal chain, wound between a driving pulley and a driven pulley, to the pulleys, the resonance frequency of a string part on a tension side and a loose side of the metal chain, and a resonance frequency of the driving pulley or the driven pulley are consistent, the vibration is converted into heat through the following control so that the vibration is attenuated. The control is that a first power transmission part, which is configured on the same shaft as the driving pulley and can change the power transmission ratio from an engine to the driving pulley, and a driven pulley are configured on the same shaft and can change at least any one power stranmission in a second power transmission part which a power transmission ratio from the driven pulley to the driving pulley side so as to generate a bit of slip.

Description

technical field [0001] The present invention relates to a control device for a continuously variable transmission in which a power transmission member such as a metal chain or a belt is wound between a driving pulley and a driven pulley. The control device of the continuously variable transmission for the vibration / noise generated by the engagement, etc. Background technique [0002] A continuously variable transmission mounted on a vehicle or the like has a structure in which a power transmission member such as an endless metal chain or a belt is wound between two pulleys (a driving pulley and a driven pulley) each having a receiving groove. The groove has a substantially V-shaped cross-sectional shape whose groove width can be changed. And, by changing the groove width (pulley width) of both pulleys, the transmission ratio can be changed steplessly. [0003] As a power transmission member used in the above-mentioned continuously variable transmission, there is a so-calle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H9/24
CPCF16H57/0006F16H61/02F16H61/662F16H2061/6604
Inventor 今井和美
Owner HONDA MOTOR CO LTD
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