Multi-speed transmission for vehicles

A technology for transmissions and vehicles, applied in the direction of vehicle transmissions, vehicle parts, components with teeth, etc., can solve problems such as undesired effects, increase in the number of internal parts of transmissions, reduction in transmission mountability and transmission efficiency, etc.
CN105864408BInactive Publication Date: 2019-11-15HYUNDAI MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HYUNDAI MOTOR CO LTD
Publication Date
2019-11-15
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The present disclosure relates to a multi-stage transmission for a vehicle that includes four planetary gear devices and six shifting elements, and each of the planetary gear devices include three rotary elements selectively connected to the six shifting elements, preferably so that the multi-stage transmission provides at least ten forward shifting stages and at least one reverse shifting stage with a relatively small number of parts and a simple configuration. In this configuration, an engine may be operated at desired operation points, to improve the fuel efficiency of the vehicle and improve the quietness of the vehicle.
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Description

technical field

[0001] The present disclosure generally relates to a multi-stage transmission for a vehicle. Background technique

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] The recent rise in oil prices has driven automakers around the world into an intense race to improve fuel efficiency. In addition, great efforts have been made to reduce the weight and improve the fuel efficiency of the engine based on various technologies such as downsizing and the like.

[0004] Another method for improving fuel efficiency is to use a multi-speed transmission to allow the engine to operate at more efficient operating points.

[0005] In addition, the multiple stages of the transmission allow the engine to operate in a relatively low RPM (revolutions per minute) range, thereby improving the quietness of the vehicle.

[0006] However, as the number of shift stages of the tran...

Claims

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