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Speed changer, power transmission system and vehicle

A power transmission system and transmission technology, applied in the field of vehicles, can solve the problems of fewer transmission paths, less transmission modes of the power transmission system, complex transmission structure, etc., and achieve the effect of enriching transmission modes

Active Publication Date: 2015-05-13
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the related technologies known to the inventor, the structure of the transmission in the hybrid electric vehicle is generally more complicated, and the transmission paths that can be provided are less, resulting in fewer and single transmission modes of the power transmission system with the transmission, and low transmission efficiency.

Method used

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  • Speed changer, power transmission system and vehicle
  • Speed changer, power transmission system and vehicle
  • Speed changer, power transmission system and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0163] Such as figure 2 As shown, the engine 4 is connected to the input end 23d of the double clutch 2d, the first output end 21d of the double clutch 2d is connected to the first input shaft 11, and the second output end 22d of the double clutch 2d is connected to the second input shaft 12. The input terminal 23d of the clutch 2d and the first output terminal 21d and the second output terminal 22d of the double clutch 2d may be in a disconnected state at the same time, or the input terminal 23d of the double clutch 2d may be connected to the first output terminal 21d and the first output terminal 21d of the double clutch 2d. One of the two output terminals 22d is engaged, or the input terminal 23d of the double clutch 2d can be engaged with the first output terminal 21d and the second output terminal 22d of the double clutch 2d at the same time.

[0164] The second input shaft 12 is a hollow shaft structure, the first input shaft 11 is a solid shaft, the second input shaft 12 i...

Embodiment 2

[0230] Such as image 3 As shown, the power transmission system 100 in this embodiment and figure 2 The main difference of the power transmission system 100 shown in FIG. 1 is the reverse intermediate gear 72, the intermediate idler 73, and the reverse synchronizer 74c. In this embodiment, the reverse intermediate gear 72 and the intermediate idler gear 73 are adjacently sleeved on the second output shaft 22, and the reverse gear synchronizer 74c is provided on the intermediate idler gear 73 and is used to engage the reverse intermediate gear 72. For the rest, you can figure 2 The power transmission system 100 in the embodiment is basically the same, and will not be repeated here.

Embodiment 3

[0232] Such as Figure 4 As shown, the power transmission system 100 in this embodiment and image 3 The main difference of the power transmission system 100 shown in is the configuration of the intermediate idler 73. In this embodiment, the intermediate idler gear 73 is configured as a double gear, and has gear parts 731, 732, one of which gear part 731 meshes with the second gear driving gear (that is, with the gear driving gear on the one of the input shafts). ), the other gear part 732 meshes with the first gear 31 of the motor power shaft. For the rest, you can image 3 The power transmission system 100 in the embodiment is basically the same, and will not be repeated here.

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PUM

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Abstract

The invention discloses a speed changer, a power transmission system and a vehicle. The speed changer comprises a plurality of input shafts, a plurality of output shafts and a motor power shaft. Each input shaft is provided with a gear drive gear. Each output shaft is provided with a gear driven gear. The gear drive gears and the gear driven gears are correspondingly meshed. The motor power shaft is sleeved with a motor power shaft first gear and a motor power shaft second gear in an idle mode. The motor power shaft is further provided with a motor power shaft synchronizer located between the motor power shaft first gear and the motor power shaft second gear. The motor power shaft first gear is in linkage with one of the input shafts, and the motor power shaft second gear is in linkage with one of the output shafts. According to the speed changer, a transmission mode of the power transmission system with the speed changer can be enriched to a certain degree.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, in particular to a power transmission system for a vehicle and a vehicle with the power transmission system. Background technique [0002] With the continuous consumption of energy, the development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, hybrid electric vehicles are driven by engines and / or electric motors and have multiple modes to improve transmission efficiency and fuel economy. [0003] However, among the related technologies known to the inventor, the structure of the transmission in a hybrid electric vehicle is generally more complicated, and it can provide fewer transmission paths, resulting in a power transmission system with the transmission having fewer and single transmission modes, and low transmission efficiency. Summary of the invention [0004] The present invention aims to solve one of the above-mentioned technical ...

Claims

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Application Information

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IPC IPC(8): B60K17/08B60K17/28B60K6/36
CPCF16H3/006
Inventor 杨冬生廉玉波张金涛罗红斌
Owner BYD CO LTD
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