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Double-mode hybrid transmission device for commercial vehicle

A technology of hybrid power and transmission devices, which is applied in the direction of power devices, hybrid vehicles, pneumatic power devices, etc., can solve the problems of small transmission ratio range and difficult working conditions, and achieve the expansion of speed ratio range, increase of power density, The effect of simple process

Inactive Publication Date: 2017-09-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Toyota's hybrid THS hybrid system has a good fuel-saving effect. It uses a planetary mechanism for power splitting to ensure that the engine always works in the economical range. Working condition requirements for commercial vehicles

Method used

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  • Double-mode hybrid transmission device for commercial vehicle
  • Double-mode hybrid transmission device for commercial vehicle
  • Double-mode hybrid transmission device for commercial vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, see attached figure 1 , a commercial vehicle dual-mode hybrid power transmission device, which includes: a motor controller 24, and three planetary rows arranged coaxially, two motors, a first clutch 20, and a first brake 13;

[0015] The three planetary rows are: internal and external meshing double star row P1, ordinary planetary row P2, and deceleration planetary row P3; among them, the internal and external meshing double star row P1 is composed of the first sun gear 2 and the first ring gear installed on the first planet carrier 3 4. The first planetary gear 16 and the second planetary gear 17; the ordinary planetary row P2 is composed of the second ring gear 6, the second sun gear 7 and the third planetary gear 18 installed on the second planet carrier 5; the deceleration planet The row P3 is composed of the third ring gear 12 and the third sun gear 19 installed on the third planetary carrier 14; the internal and external meshing double star row P1 a...

Embodiment 2

[0026] Embodiment 2, see attached figure 2 , on the basis of Embodiment 1, the second clutch 25 and the second brake 26 are added; the driving end of the second clutch 25 is connected with the second ring gear 6 and the rotor 8 of the first motor respectively, and the passive end is connected with the third sun gear 19. The rotor 10 of the second motor is connected; the driven end of the second brake 26 is connected to the casing, and the driving end is connected to the driven end of the second clutch 25 and the shaft 21 . Thus, 4 more mechanical gears can be obtained.

[0027] Its mode switching logic is shown in the following table:

[0028]

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Abstract

The invention belongs to the technical field of hybrid automobiles and in particular relates to a hybrid transmission device. A double-mode hybrid transmission device for a commercial vehicle comprises a motor controller, three planet rows, two motors, a first clutch and a first brake, wherein the three planet rows are coaxially arranged; the three planet rows are an internal and external engaged double-planet row, a common planet row and a speed reducing planet row; the internal and external engaged double-planet row and the common planet row form a power splitting mechanism so that double-mode power splitting can be realized. Double modes are a speed dividing and moment gathering power splitting mode and a speed dividing and speed gathering power splitting mode. When the two modes are switched, the clutch has no speed difference so that a mode switching control system can be simplified. Compared with single mode power splitting, the double-mode hybrid transmission device for the commercial vehicle has the advantages that the speed ratio range of a variable transmission device can be enlarged, the torque and power of the motor can be reduced and the power density of the transmission device can be increased.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicles, in particular to a hybrid transmission device. Background technique [0002] Hybrid transmission technology is an important means of energy saving and emission reduction, and major automobile manufacturers are actively developing it. Toyota's hybrid THS hybrid system has a good fuel-saving effect. It uses a planetary mechanism for power splitting to ensure that the engine always works in the economical range. For the working conditions of commercial vehicles. [0003] The dual-mode power-split hybrid power transmission system can effectively utilize the two power-split modes of low speed and high speed. It has high efficiency throughout the whole process, requires less motor torque and power, and has a larger range of transmission ratios, which is more suitable for the working conditions of commercial vehicles. need. US2005 / 0137042A1 discloses a dual-mode hybrid power transmis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/24B60K6/26B60K6/365B60K6/38B60K6/40B60K6/50
CPCB60K6/24B60K6/26B60K6/365B60K6/38B60K6/40B60K6/50Y02T10/62
Inventor 彭增雄胡纪滨魏超
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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