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Single motor hybrid automobile power drive mechanism based on planetary gear train

A technology of hybrid electric vehicles and driving mechanisms, which is applied to the layout of multiple different prime movers, power devices, and air pressure power devices of general power devices, and can solve difficulties, restrictions on the selection of engine operating points, and increased engine operating states, etc. problem, to achieve the effect of simple structure

Inactive Publication Date: 2009-05-27
TIANJIN QINGYUAN ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the engine speed in this mode changes with the vehicle speed, which limits the selection of the engine's operating point and increases the difficulty of further controlling the engine's operating state.

Method used

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  • Single motor hybrid automobile power drive mechanism based on planetary gear train
  • Single motor hybrid automobile power drive mechanism based on planetary gear train
  • Single motor hybrid automobile power drive mechanism based on planetary gear train

Examples

Experimental program
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Embodiment Construction

[0026] Further illustrate the present invention below in conjunction with embodiment and accompanying drawing.

[0027] Such as figure 1 In the shown embodiment 1, the motor 12 of the planetary gear train and the double-ended shaft is arranged in the body 16 . The sun gear 2 of the planetary gear system is provided with a sun gear central shaft 1, and its shaft end can be connected to the output shaft of a power source including a reciprocating piston engine, a rotary engine, a gas turbine, a steam engine and the like via an existing deceleration or speed-up mechanism.

[0028] The planet carrier 3 of the planetary gear train is connected with the power output shaft 7 of the drive mechanism, and the power output shaft 7 is connected with a transmission (not shown) in the prior art.

[0029] The ring gear 4 of the planetary gear train is provided with a hollow shaft 5 sleeved on the power output shaft 7 , and the hollow shaft 5 is provided with a gear pair 6 connected to the f...

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Abstract

The invention relates to a hybrid vehicle driving mechanism based on a planetary gear train, consisting of a planetary gear train; a sun wheel of the planetary gear train is provided with a central axis which is connected with an output shaft of a power source, a planet frame of the planetary gear train is a power output shaft of the driving mechanism, a gear ring of the planetary gear train is provided with a gear pair connected with a preposing intermediate shaft, the power output shaft is provided with a gear pair connected with a post-positioned intermediate shaft, and a motor shaft is provided with transmission shafts respectively connected with the preposing intermediate shaft and the post-positioned intermediate shaft; electronic control clutches are arranged between the transmission shafts and the preposing intermediate shaft as well as the post-positioned intermediate shaft, and a shaft brake is positioned on the preposing intermediate shaft. The driving mechanism leads the power source to be coupled with the power of a motor by the planetary gear train, and can cause the direct corresponding relations between the operating points of an engine and whole vehicle speed to be separated from each other, thus conveniently realizing optimal control for the working efficiency of the engine. Compared with the existing hybrid vehicle driving mechanism applying the planetary gear train, the invention has the remarkable advantages simpler structure.

Description

technical field [0001] The invention belongs to a drive system of a dual-power vehicle, in particular to a drive mechanism for a single-motor hybrid vehicle based on a planetary gear train. Background technique [0002] At present, hybrid electric vehicles generally adopt a drive scheme in which a single motor or a dual motor and an engine are jointly driven. The cost of the dual-motor solution is relatively high. The single-motor solution generally connects the motor to the engine crankshaft through a clutch, a transmission or a direct mechanical connection, so that the motor can provide additional torque when starting or accelerating, and the brake can be used when decelerating or braking. Kinetic energy is recovered to generate electricity. However, the engine speed in this mode changes with the vehicle speed, which limits the selection of the engine's operating point and increases the difficulty of further controlling the engine's operating state. Contents of the inve...

Claims

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Application Information

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IPC IPC(8): B60K6/387B60K6/547
Inventor 袁庆强赵春明吴志新马宁李磊余楚礼窦汝振范京
Owner TIANJIN QINGYUAN ELECTRIC VEHICLE
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