Electric drive and hybrid power transmission device based on composite planetary gear train

A compound planetary gear and compound gear train technology, which is applied in the direction of power plant, hybrid vehicle, air pressure power plant, etc., can solve the problems of high generator speed and large energy loss, so as to reduce energy loss, improve power performance, The effect of improving the efficiency of high-speed operation

Pending Publication Date: 2020-08-18
嵘波科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mode has good efficiency when the vehicle speed is low, but the generator speed is too high at higher speeds, and the energy loss is large; especially in the pure electric mode, the generator speed quickly reaches the limit, and the engine must be started, resulting in emissions and fuel consumption

Method used

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  • Electric drive and hybrid power transmission device based on composite planetary gear train
  • Electric drive and hybrid power transmission device based on composite planetary gear train
  • Electric drive and hybrid power transmission device based on composite planetary gear train

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Embodiment Construction

[0052] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part, but not all, of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] Such as figure 1 As shown, an electric drive and hybrid power transmission system based on a compound planetary gear train provided by the present invention includes an electric motor, a power output shaft 25 and a gearbox body, and the gearbox body is connected with an external power driven by an external power 30 The input shaft 31, the above-mentioned optional directional clutch 21 and brake 22 are fixedly connected to the gearbox body, and the optional directional clutch 21 and the brake 22 are connected to the external pow...

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Abstract

The invention discloses an electric drive and hybrid power transmission device based on a composite planetary gear train. The hybrid power system comprises the composite planetary gear train with twogear rings, a simple planetary gear train transmission mechanism, a generator, a driving motor, a plurality of clutches, direction-selectable clutches, a controller, a motor inverter, an external battery pack and external power such as an engine. A small gear ring of the composite gear train is connected with the motor through a fixed speed ratio, and a large gear ring is connected with the outputshaft through a fixed speed ratio. The composite planet carrier is connected with a gear ring of the simple gear train. An external power input shaft can be connected with a simple planet carrier, acomposite gear train sun gear and a motor connecting gear through a clutch. The device can provide a hybrid power working mode with three electric drive speed ratio gears, one series connection, threecontinuous speed changes and nine fixed speed ratios. The electric drive and hybrid power transmission device is suitable for electric drive and hybrid power coupling transmission of electric and hybrid power vehicles, including ships and amphibious vehicles, aircrafts, and engineering machinery.

Description

technical field [0001] The invention relates to a vehicle electric drive and power transmission device, especially a hybrid power transmission system based on a compound planetary gear train driven by a single motor and multiple power split modes for range-extended, plug-in and conventional hybrid vehicles. Background technique [0002] Pure electric drive vehicles are clean and environmentally friendly, which is conducive to promoting the development and utilization of renewable energy and meeting the strategic needs of energy diversification. The daily use and maintenance costs are low, and government policy support is worthy of vigorous promotion. Because of the limitations of charging facilities, the popularity of pure electric vehicles is far less than that of traditional fuel vehicles. Extended-range electric vehicles such as General Motors Chevrolet VOLT can run purely electric after daily charging, and use power-split hybrid mode to run when not charging, and their f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K6/24B60K6/26B60K6/38B60K6/44B60K6/547
CPCB60K6/365B60K6/24B60K6/26B60K6/38B60K6/44B60K6/547Y02T10/62
Inventor 韩尔樑
Owner 嵘波科技有限公司
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