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Three-planet-row hybrid power driving device

A driving device and hybrid power technology, applied in the field of new energy vehicles, can solve the problems of high control difficulty, lack of success in hybrid hybrid power system, complex structure, etc.

Active Publication Date: 2021-07-06
青岛科麟智传汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the structure of the traditional hybrid hybrid system is very complex, and the control is difficult. How to realize the efficient range-extending mode, realize the fast switching of the driving mode, improve the transmission efficiency of the system and reduce the system cost in the hybrid hybrid system has not yet been solved. It has been effectively solved, and the currently feasible cross-connected hybrid system in the domestic auto industry is lacklustre.

Method used

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  • Three-planet-row hybrid power driving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Engine quick start mode:

[0069] Such as figure 2 As shown, the clutch 10 is in the disengaged state, the third brake 7 is in the braking state, and the first brake 2 and the second brake 27 are not braking. The first motor 26 obtains electric energy from the power battery 8 to generate power and transmits the power to the first planetary carrier 3, and the first planetary carrier 3 transmits the power to the first sun gear 5 through the first planetary gear 6, and the first sun gear 5 will The power is transmitted to the engine 1 through the torsional shock absorber 29 to the optimum starting speed, so as to realize the fast starting mode of the engine.

Embodiment 2

[0071] Parking power generation mode:

[0072] Such as image 3 As shown, the clutch 10 is in the disengaged state, the third brake 7 is in the braking state, and the first brake 2 and the second brake 27 are not braking. The engine 1 transmits the power to the first sun gear 5 through the first sun gear shaft 28 through the torsional shock absorber 29, and the first sun gear 5 transmits the power to the first planet carrier 3 through the first planetary gear 6, and the first planet carrier 3 The power is transmitted to the first electric motor 26, and the first electric motor 26 converts the power into electric energy and stores it in the power battery 8 to realize the parking power generation mode.

Embodiment 3

[0074] Level 1 pure electric drive mode:

[0075] Such as Figure 4 As shown, when the whole vehicle is in a medium-speed and medium-power driving condition, the clutch 10 is in a disengaged state, the first brake 2, the second brake 27, and the third brake 7 do not brake, and the engine 1 and the first motor 26 are turned off. state. The second motor 12 obtains electric energy from the power battery 8 to generate power and transmits the power to the third planetary carrier 15, and the third planetary carrier 15 transmits the power to the second ring gear 18 through the third planetary gear 17, and the second ring gear 18 will The power is transmitted to the differential gear 21, and the differential gear 21 transmits the power to the left half-shaft 22 and the right half-shaft 19 through the differential gear assembly 20, realizing the first-level pure electric drive mode.

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Abstract

The invention discloses a three-planet-row hybrid power driving device. The three-planet-row hybrid power driving device comprises a driving device shell; an engine which is arranged in the driving device shell; a power battery which is arranged in the shell; a first motor and a second motor which are electrically connected with the power battery respectively; a first sun wheel shaft and a second sun wheel shaft which are coaxially arranged, and the first sun wheel shaft is connected with the output end of the engine; a clutch which is arranged between the first sun wheel shaft and the second sun wheel shaft, and selectively enables the first sun wheel and the second sun wheel to be connected; a third sun wheel shaft which is coaxially arranged with the first sun wheel shaft and the second sun wheel shaft; a three-planet-row gear train; the first gear ring is fixedly connected with the second planet carrier, and the second planet row and the third planet row share the second gear ring; a first brake; a second brake; a third brake; and a differential mechanism. And through switching of multiple working modes, each power source is ensured to work in a high-efficiency area.

Description

technical field [0001] The invention relates to a three-planet hybrid driving device, which belongs to the technical field of new energy vehicles. Background technique [0002] At present, new energy vehicles are a hot spot in the development of automobiles in various countries in the world. New energy vehicles are roughly divided into pure electric vehicles, fuel cell vehicles and hybrid vehicles. Pure electric vehicles have problems such as long charging time and insufficient battery life; although fuel cell vehicles can achieve true zero pollution, their technical threshold is very high, and there are problems such as slow start-up speed, low catalytic efficiency and fuel storage safety, etc. question. [0003] Since both pure electric vehicles and fuel cell vehicles have shortcomings that are difficult to overcome in the short term, hybrid vehicles have become a good choice. Hybrid vehicles have two power sources, the engine and the motor. Combined with the high-effic...

Claims

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Application Information

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IPC IPC(8): B60K6/365B60K6/38B60K6/42
CPCB60K6/365B60K6/38B60K6/42B60K2006/381
Inventor 孙少华陈浩田哲刘翔宇公茂森程子硕王英睿
Owner 青岛科麟智传汽车科技有限公司
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