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Dedicated automatic transmission planetary gear mechanism of pure electric vehicles

An automatic transmission, pure electric vehicle technology, applied in the direction of vehicle gearbox, gear transmission, belt/chain/gear, etc., can solve the problems of low efficiency, complex structure, large volume, etc. Simple layout effect

Active Publication Date: 2012-01-25
黄康 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of large size, complex structure and low efficiency when the existing automatic transmission is applied to pure electric vehicles, the present invention provides a special automatic transmission planetary gear mechanism for pure electric vehicles

Method used

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  • Dedicated automatic transmission planetary gear mechanism of pure electric vehicles
  • Dedicated automatic transmission planetary gear mechanism of pure electric vehicles
  • Dedicated automatic transmission planetary gear mechanism of pure electric vehicles

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Embodiment Construction

[0016] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0017] see Figure 4 , a schematic structural diagram of an automatic transmission for pure electric vehicles, including a torque converter 10, a case 9 and a planetary gear mechanism for an automatic transmission for pure electric vehicles, which is installed in the case 9. see figure 1 , one side of the chassis is provided with a ring gear 3 with internal meshing teeth, and the front planetary gear 8 meshing with the ring gear 3 is vacantly sleeved on one end of the planetary carrier 7, and the rear planetary gear 6 is also vacantly sleeved on one end of the planetary carrier. Wheel 8 and rear planetary gear 6 are duplex gears, see figure 2 . The front sun gear 2 meshing with the front planetary gear 8 is installed on one end of the wheel shaft 1 (input shaft), and the front sun gear 2 is located in the ring gear 3; the wheel shaft 1 is th...

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Abstract

The invention relates to a dedicated automatic transmission planetary gear mechanism of pure electric vehicles. The mechanism comprises a gear ring, a front planetary gear engaged with the gear ring is sleeved on one end of a planet carrier, and a rear planetary gear is sleeved on the planet carrier as well; a front central gear engaged with the front planetary gear is arranged on one end of a gear shaft, and is positioned in the gear ring; the gear shaft is an input shaft one end of which is inserted in an output shaft through a bearing, and the output shaft is provided with a rear central gear which is engaged with the rear planetary gear; the other end of the gear shaft is connected with one end of the planet carrier through a three-gear clutch C, and the planet carrier is provided with a forward-gear one-way clutch (F1) and a reverse-gear brake (B); and the outer side of the gear ring is connected with a one-way clutch F2. The efficiency of the mechanism is higher than the efficiency of an automatic transmission with the planetary gear mechanism of the fuel vehicle; and the mechanism has the advantages of simple gear arrangement structure, compact structure, small size and light weight, which accord with the principle of the lightweight design of vehicles.

Description

technical field [0001] The invention belongs to the technical field of automobile transmissions, and in particular relates to a planetary gear mechanism for an automatic transmission dedicated to pure electric vehicles. Background technique [0002] At present, the transmission of pure electric vehicles is mainly "deformed" from the transmission of fuel vehicles, or some electric vehicles directly use only the reducer. Pure electric vehicles do not have a dedicated automatic transmission. Although the automatic transmission of fuel vehicles has superior performance, for electric vehicles, on the one hand, its volume and weight are too large, and it is directly applied to electric vehicles, which increases the weight of the vehicle too much; On the other hand, due to the difference between the characteristics of the motor and the engine, pure electric vehicles do not need to use such a complicated structure as the automatic transmission of fuel vehicles. Directly using the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/70
CPCF16H2200/0021
Inventor 黄康罗时帅
Owner 黄康
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