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Dual-mode hybrid power transmission device of front-wheel drive car

A transmission and hybrid technology, applied in the direction of power plant, electric power plant, pneumatic power plant, etc., can solve problems such as affecting transmission efficiency, and achieve the effect of wide transmission ratio range, reduction of energy conversion process, and compact structure

Active Publication Date: 2017-06-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When in the high-speed hybrid working condition, when the speed ratio of the transmission device is greater than the mechanical point speed ratio, the power cycle of the planetary row occurs, which affects the transmission efficiency

Method used

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  • Dual-mode hybrid power transmission device of front-wheel drive car
  • Dual-mode hybrid power transmission device of front-wheel drive car
  • Dual-mode hybrid power transmission device of front-wheel drive car

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: see attached figure 1 , a dual-mode hybrid transmission for a front-drive vehicle, which includes: an engine input shaft 1, a torsional shock absorber 2, a double planetary mechanism, a first gear 6, a second gear 7, a first motor E1, a first brake 12, Third gear 13, first clutch 14, second motor E2, first output shaft 17, differential 18, second output shaft 19, fifth gear 20, sixth gear 21, second clutch 22, seventh gear 23, one-way clutch 24;

[0024] The first motor E1 and the second motor E2 are coaxially arranged, that is, the output shaft of the second motor E2 is coaxially sleeved outside the output shaft of the first motor E1, and the stators of the two motors are fixedly connected to the transmission housing;

[0025] The double planetary mechanism includes: the first planet carrier 5 and the second planet carrier 8 connected to each other, the first sun gear 3 installed on the first planet carrier 5, the first ring gear 4 and the The second ri...

Embodiment 2

[0040] Embodiment 2: see attached figure 2 , a dual-mode hybrid transmission for a front-drive vehicle, which includes: an engine input shaft 1, a torsional shock absorber 2, a double planetary mechanism, a first gear 6, a second gear 7, a first motor E1, a first brake 12, Third gear 13, first clutch 14, fourth gear 15, second motor E2, first output shaft 17, differential 18, second output shaft 19, fifth gear 20, sixth gear 21, second clutch 22, the seventh gear 23, the one-way clutch 24;

[0041] The first motor E1 and the second motor E2 are arranged on different axes; the stators of the two motors are fixedly connected to the transmission housing;

[0042] The double planetary mechanism includes: the first planet carrier 5 and the second planet carrier 8 connected to each other, the first sun gear 3 installed on the first planet carrier 5, the first ring gear 4 and the The second ring gear 9, the second sun gear 11; the first sun gear 3 is connected to the second ring g...

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Abstract

The invention belongs to the technical field of hybrid power cars, and particularly relates to a hybrid power transmission device. According to the technical scheme, the dual-mode hybrid power transmission device of a front-wheel drive car comprises an engine input shaft, torsion dampers, a dual planetary mechanism, a first gear, a second gear, a first motor, a first brake, a third gear, a first clutch, a second motor, a first output shaft, a differential mechanism, a second output shaft, a fifth gear, a sixth gear, a second clutch, a seventh gear and a one-way clutch. The dual-mode hybrid power transmission device is compact in structure, mode switching is conducted through the two clutches, and the clutches are arranged on the other shaft so that the overall axial length can be shortened. Power split is conducted through the dual planetary mechanism, and dual-mode power split can be achieved in the cooperation of the two switching clutches so that torque and power requirements of the two motors can be reduced.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicles, in particular to a power transmission device. Background technique [0002] Hybrid power transmission is the research and development focus of various manufacturers in the national new energy vehicle strategy. All major automobile companies are actively developing hybrid power transmissions. Among them, the deep hybrid power transmission in the form of power split has more obvious energy-saving effect and is the most The representative product is THS of Toyota Corporation. The THS adopts the single-mode split-speed-combination-torque power split (output split) form of a single planetary row. It has a simple structure, but requires a large motor torque and power, and requires a high motor speed. When in the high-speed hybrid working condition, when the speed ratio of the transmission device is greater than the mechanical point speed ratio, the power cycle of the planetary row wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K1/02B60K6/383
CPCB60K1/02B60K6/365B60K6/383
Inventor 彭增雄胡纪滨魏超
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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