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Stepless speed change mechanism and power assembly

A continuously variable transmission mechanism and speed technology, applied in the direction of vehicle gearbox, transmission box, transmission components, etc., can solve the problems of complex transmission structure, insufficient low-speed torque, insufficient high-speed speed, etc., and achieve simple installation, large reserve torque, good The effect of gradeability

Active Publication Date: 2022-02-22
清驰汽车(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve technical problems such as complex structure of existing transmissions, insufficient low-speed torque or insufficient high-speed rotational speed, the present invention provides a continuously variable transmission mechanism

Method used

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  • Stepless speed change mechanism and power assembly
  • Stepless speed change mechanism and power assembly
  • Stepless speed change mechanism and power assembly

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Embodiment Construction

[0033] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0034] It should be noted that, in the description of the present invention, terms such as "inner", "outer" and other indicated directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, rather than Nothing to indicate or imply that a device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore be construed as limiting the invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only, and should not be construed as indicating or i...

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Abstract

The invention belongs to the technical field of transmissions, and particularly relates to a stepless speed change mechanism and a power assembly. The stepless speed change mechanism comprises a first planetary gear set and a second planetary gear set, a first gear ring of the first planetary gear set is connected with a second planet carrier of the second planetary gear set, and the stepless speed change mechanism further comprises a first input end; a second input; an output end connected with the first planet carrier; a first clutch arranged between the first planet carrier and a second gear ring; a second clutch arranged between the first planet carrier and a first sun gear; a first brake matched with the second gear ring; and a second brake which is configured to control the second planet carrier and the first gear ring to be static or allow the second planet carrier and the first gear ring to rotate freely. The stepless speed change mechanism is simple in structure, power input by the two input ends can be efficiently balanced, various continuous speed changes are achieved, large torque is achieved when the low rotating speed is output, and the wide application range is achieved.

Description

technical field [0001] The invention relates to the technical field of transmissions, and specifically provides a continuously variable transmission mechanism and a power assembly. Background technique [0002] With the vigorous development of the vehicle industry, the automatic transmission function of automobiles has gradually become the mainstream design, but the structure of the traditional transmission is complicated, and the performance requirements of the driving machine are relatively high. When the vehicle is running at a low speed, it needs to provide a large torque, and when the vehicle is running at a high speed, it needs to provide a high speed. However, the cost of a high-speed, high-torque driving machine is high, which in turn leads to the high price of a high-performance automatic transmission vehicle. General-priced vehicle drives have limited performance, and generally have the defects of slow acceleration and poor climbing ability caused by insufficient t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/76F16H3/72F16H57/02B60K17/08
CPCF16H3/76F16H3/721F16H57/02B60K17/08F16H2200/2007F16H2200/2041F16H2057/02043
Inventor 张欣吴志先毛晶平张权
Owner 清驰汽车(北京)有限公司
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