Automatic transmission device for vehicle

A technology for automatic transmissions and vehicles, which is applied to vehicle gearboxes, transmissions, gear transmissions, etc. It can solve the problems that the transmission efficiency of automatic transmissions cannot be enhanced, and the drag resistance at joint elements increases, so as to achieve the reduction of drag resistance and the transmission The effect of enhancing efficiency

Inactive Publication Date: 2017-02-22
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, according to the known automatic transmission, since two of the six engaging elements are engaged and the other four engaging elements are released to form nine forward speeds and one reverse speed, and the number of released engaging elements increases , so the drag resistance at the engagement element increases
Thus, the transmission efficiency of the automatic transmission may be prevented from being enhanced due to the increased drag resistance

Method used

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  • Automatic transmission device for vehicle
  • Automatic transmission device for vehicle
  • Automatic transmission device for vehicle

Examples

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Embodiment Construction

[0018] Embodiments of an automatic transmission for a vehicle will be described below with reference to the drawings. In this embodiment, the automatic transmission device for a vehicle is a device for changing the speed of rotational driving force output by a power source mounted on the vehicle, such as an engine and an electric motor. Rotational driving force, which is changed in speed by an automatic transmission for a vehicle, is transmitted to steering wheels via a differential. Thereby, the vehicle moves forward or backward with the predetermined gear established by the automatic transmission for the vehicle.

[0019] Embodiments of an automatic transmission for a vehicle may be variously configured, as a starting point, hereinafter reference will be made to figure 1 The schematic diagram in , which shows the configuration including various configurations. The automatic transmission 10 for a vehicle includes an input shaft N, an output shaft T, and a first planetary ge...

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Abstract

An automatic transmission device for a vehicle includes a first planetary gear mechanism, a second planetary gear mechanism, a third planetary gear mechanism, a fourth planetary gear mechanism, an input shaft, an output shaft, six engaging elements including a first engaging element, a first clutch, a second clutch, a third clutch, a first brake and a second brake, a first connection member, a second connection member, a third connection member, a fourth connection member, a fifth connection member, and a sixth connection member. Nine forward speeds and one reverse speed are provided by an engagement of three engaging elements of the six engaging elements.

Description

technical field [0001] The present application generally relates to an automatic transmission for a vehicle. Background technique [0002] A known automatic transmission for vehicles disclosed in US7364527B (hereinafter referred to as Patent Document 1) provides nine forward speeds (ie, forward speed) and one reverse speed (ie, reverse speed). For example, an automatic transmission for a vehicle disclosed in Patent Document 1 includes four planetary gear mechanisms and six engaging elements. The automatic transmission for a vehicle establishes nine forward speeds and one reverse speed by engaging two of the six engagement elements. [0003] According to the automatic transmission for a vehicle disclosed in Patent Document 1, the sun gear of the first planetary gear mechanism is connected to the input shaft, and is selectively engaged with the carrier of the third planetary gear mechanism through the second clutch. The carrier of the first planetary gear mechanism is connec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/64
CPCF16H3/666F16H3/66F16H2200/0069F16H2200/2012F16H2200/2046F16H2200/2097F16H3/64
Inventor 高木清春间濑笃弘中村荣希
Owner AISIN SEIKI KK
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