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Dual-clutch automatic transmission and transmission control method thereof

A technology of automatic transmission and double clutch, which is applied in transmission control, elements with teeth, belts/chains/gears, etc. It can solve problems such as slowness and difficulty in obtaining acceleration, and achieves preventing sensory deterioration and suppressing torque The effect of reduction and low cost

Inactive Publication Date: 2013-03-27
AISIN AI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, there is a situation as follows: if the time for shifting to the required gear is increased, there will be a sense of sluggishness when shifting, and it will be difficult to obtain a sense of acceleration that satisfies the driver.

Method used

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  • Dual-clutch automatic transmission and transmission control method thereof
  • Dual-clutch automatic transmission and transmission control method thereof
  • Dual-clutch automatic transmission and transmission control method thereof

Examples

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Embodiment Construction

[0030] Below, refer to Figure 1 to Figure 9 A first embodiment of a dual-clutch automatic transmission embodying the present invention will be described. figure 1 It is a block diagram showing a partial configuration of a vehicle to which the dual-clutch automatic transmission 1 according to the present invention can be applied. figure 1 The vehicle shown is an FF (front-engine front-wheel drive) type vehicle, equipped with: an engine 4, which is an example of a prime mover, and is driven by combustion of gasoline; Transmission 1; differential gear 14 (differential); drive shafts 15a, 15b; drive wheels 16a, 16b (front wheels);

[0031] Such as figure 2 As shown, the dual-clutch automatic transmission 1 has a transmission case 11 forming and housing a plurality of gears, and a clutch housing 12 housing a dual clutch 40 (corresponding to the dual clutch of the present invention). The housing 10 is formed by the gearbox 11 and the clutch housing 12 .

[0032] In addition, t...

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PUM

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Abstract

The present invention provides a dual-clutch automatic transmission and a transmission control method thereof, capable of meeting acceleration requirements of a driver even if a required gear is not ready. A transmission control device (3) of the dual-clutch automatic transmission (1) comprises: a current gear detection part (111); a required gear operating part (112); an accelerator stepping-on detection part (114); a gear-shift progressing operating part (115) used for operating a gear-shift progressing of a first or second gear-shift mechanism during the process that the gear is required to be shifted when the stepping-on of the accelerator is detected; and a driving gear selection control part, wherein, when the gear-shift progressing is greater than a preset gear-shift change threshold, the driving gear selection control part enables the clutch corresponding to the required gear which is ready through the first or second gear-shift mechanism to engage to drive, when the gear-shift progressing is less than the preset gear-shift change threshold, the driving gear selection control part enables the clutch corresponding to the current gear which is ready through the first or second gear-shift mechanism to engage to drive.

Description

technical field [0001] The present invention relates to a dual-clutch automatic transmission having a dual clutch capable of transmitting rotational driving force of a prime mover to two input shafts, and a shift control method thereof. Background technique [0002] In recent years, a dual-clutch automatic transmission (Patent Document 1) that can change gears without cutting off torque has attracted attention. Such a double clutch type automatic transmission has: two input shafts, the two input shafts are respectively fixed with concentrically arranged even-numbered and odd-numbered gears; , supporting even-numbered and odd-numbered driven gears; and a second countershaft supporting the remaining driven gears of the even-numbered and odd-numbered driven gears. There are also two clutches for disconnecting torque transmission between the engine and the two input shafts. [0003] The dual-clutch automatic transmission utilizes such a structure that the clutch connected to o...

Claims

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Application Information

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IPC IPC(8): F16H61/688F16H59/18
CPCF16H2061/0216F16H59/18F16H61/16F16H61/0213F16H61/02F16H61/688
Inventor 平贺俊郎神谷充俊
Owner AISIN AI CO LTD
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