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Hybrid power system

A hybrid power system and meshing technology, which is applied in the field of automobile hybrid power transmission system, can solve the problems of difficult shifting, large speed ratio difference, and large fluctuation range of engine speed ratio, etc., and achieve high-efficiency parking power generation function and small speed ratio difference Effect

Pending Publication Date: 2022-07-29
SUZHOU KAIBO YIKONG DRIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the motor needs to use a low-speed and large motor, which is large in size and weight. This solution results in a long installation length of the entire hybrid system; , fewer gears in the gearbox means a large speed ratio step difference, the engine speed ratio fluctuation range before and after the shift is large, the engine cannot run stably in the high-efficiency zone, and a good energy-saving and emission-reduction effect cannot be achieved; and a large speed ratio step difference will also make the It is more difficult to shift gears, and even cannot meet the shifting needs
At the same time, the power transmission is interrupted during the shifting process, which affects the driving comfort and even cannot meet the needs of certain working conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0135] The present invention provides a hybrid power system, such as figure 1 Shown is the first embodiment of the present invention, in this embodiment, the hybrid power system includes an engine F, the output shaft of which is connected to the engine input shaft SF1 via a total clutch C; the engine input shaft SF1 passes through the first The gear set GR1 connects the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3; the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 can selectively pass through the second, third and fourth gear sets GR2, respectively, GR3, GR4 are connected with the system output shaft SO; the output power of the engine is transmitted to the first intermediate shaft SF2 of the engine and the second intermediate shaft SF3 of the engine through the first gear set GR1, and then selectively through the second, third, or first intermediate shaft. The four gear sets GR2, GR3, GR4 are transmitted to...

no. 2 example

[0165] like figure 2 Shown is a hybrid power system provided by the second embodiment of the present invention, and the hybrid power system includes:

[0166] Engine F, the output shaft of which is connected to the engine input shaft SF1 via the total clutch C; the engine input shaft SF1 is connected to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 through the first gear set GR1; An intermediate shaft SF2 and a second intermediate shaft SF3 of the engine are selectively connected to the system output shaft SO through the second, third and fourth gear sets GR2, GR3 and GR4, respectively.

[0167] The first motor EM1, the first motor output shaft SE11 is connected to the motor first intermediate shaft SE2 through the fifth and first gear set GR51, and the motor first intermediate shaft SE2 can selectively pass through the sixth and seventh gear sets GR6, respectively, GR7 is connected to the system output shaft SO.

[0168] For the secon...

no. 3 example

[0176] like image 3 Shown is a hybrid power system provided by a third embodiment of the present invention, and the hybrid power system includes:

[0177] Engine F, the output shaft of which is connected to the engine input shaft SF1 via the total clutch C; the engine input shaft SF1 is connected to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 through the first gear set GR1; An intermediate shaft SF2 and a second intermediate shaft SF3 of the engine are selectively connected to the system output shaft SO through the second, third and fourth gear sets GR2, GR3 and GR4, respectively.

[0178]The first motor EM1, the first motor output shaft SE11 is connected to the fifth gear set GR5 through the eighth gear set GR8, and the fifth gear set GR5 is respectively connected to the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3, so The first intermediate shaft SE2 of the motor and the second intermediate shaft SE...

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Abstract

According to the hybrid power system, the hybrid power system in which an engine is combined with a single motor or the engine is combined with multiple motors is adopted, the engine working mode of as many as 9 gears can be achieved, the high-gear high vehicle speed can be achieved, the low-gear large-load requirement can be met, meanwhile, the speed ratio stage difference is small, and the engine can continuously work in a high-efficiency area. Under the condition that the electric quantity of the vehicle is low or zero, the vehicle can still run out of the trap and run in heavy load; a more efficient parking power generation function can be achieved, that is, the engine is stabilized in the optimal efficient area during parking, the motor is driven to generate power through a proper transmission ratio, and meanwhile the motor can be just stabilized in the optimal efficient area.

Description

technical field [0001] The invention relates to the technical field of automobile hybrid power transmission systems, in particular to a hybrid power system. Background technique [0002] The hybrid power system in the prior art often adopts the technical solution of inserting a single motor system between the engine and the gearbox. On the one hand, the motor needs to use a low-speed large motor, which is large in size and weight. This solution causes the installation length of the entire hybrid system to be very long; , the less gears of the gearbox means that the speed ratio step is large, the speed ratio fluctuation range of the engine before and after shifting is large, the engine cannot run stably in the high-efficiency area, and good energy saving and emission reduction effects cannot be achieved; and the large speed ratio step will also make It is more difficult to shift gears, and it cannot even meet the shifting needs. At the same time, the power transmission is i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/36B60K6/38B60K6/547
CPCB60K6/36B60K6/38B60K6/547
Inventor 郝庆军耿建涛方伟
Owner SUZHOU KAIBO YIKONG DRIVE TECH CO LTD
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