Double-planet-wheel-set type two-speed electric-driving transmission

A planetary gear set, double planetary gear technology, applied in the direction of gear transmission, belt/chain/gear, transmission parts, etc., can solve the complex shifting control strategy, the high cost of shifting, and the shifting is not smooth, etc. problems, to achieve the effect of low cost of shifting, smooth shifting, and convenient shifting control.

Pending Publication Date: 2019-06-18
陈扬珑 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of shifting gears through the clutch is not very smooth when shifting gears, and it is easy to cause frustration due to the difference in speed between the gears, and the shifting control strategy is relatively complicated, and the cost of shifting is high and kinetic energy is lost. also more

Method used

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  • Double-planet-wheel-set type two-speed electric-driving transmission

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Embodiment Construction

[0013] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention. All similar structures and similar changes of the present invention should be included in the scope of protection of the present invention. The commas in all represent the relationship between and, and the English letters in the present invention are case-sensitive.

[0014] Such as figure 1 As shown, a double planetary gear set type two-speed electric drive transmission provided by the embodiment of the present invention includes a gearbox body x1, a drive motor t1, and a planetary gear set, and is characterized in that:

[0015] There are two planetary gear sets, one of which is the first planetary gear set, and the other planetary gear set is the second planetary gear set;

[0016] The output shaft of the drive motor t1 is connected to the sun gear s1 of the first pl...

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PUM

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Abstract

The invention discloses a double-planet-wheel-set type two-speed electric-driving transmission, relates to the technical field of transmission machinery, and solves the technical problems that existing transmissions are not smooth in gear shifting and large in kinetic energy loss. The transmission comprises a gearbox casing, a driving motor, a reduction gear set, a first planet wheel set and a second planet wheel set; an output shaft of the driving motor is connected with a sun gear of the first planet wheel set; an inner gear ring of the first planet wheel set is fixed to the gearbox case; aplanet frame of the first planet wheel set is connected with an inner gear ring of the second planet wheel set; a brake for braking a sun gear of the second planet wheel set is arranged on the gearboxcasing; a planet frame of the second planet wheel set is connected with a reduction gear set; and power is output through the reduction gear set. The transmission is applicable to electric vehicles or hybrid vehicles.

Description

technical field [0001] The invention relates to transmission machinery technology, in particular to a technology of a double planetary gear set type two-speed electric drive transmission. Background technique [0002] Clutches are provided in existing hybrid or pure electric transmissions, and the shifting operation is realized by manipulating the clutches. This method of shifting gears through the clutch is not very smooth when shifting gears, and it is easy to cause frustration due to the difference in speed between the gears, and the shifting control strategy is relatively complicated, and the cost of shifting is high and kinetic energy is lost. Also more. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a double planetary gear set type two-speed electric drive transmission with smooth shifting, low cost for shifting, and less kinetic energy loss. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/58F16H57/023F16H57/08F16H57/10F16H61/04
Inventor 陈扬珑周士建殷渝生
Owner 陈扬珑
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