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Four-speed-gear single-motor hybrid power assembly

A technology of hybrid power and single motor, which is applied in the field of vehicle hybrid power to achieve the effects of small torque, low power consumption and cost reduction

Active Publication Date: 2018-07-06
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the hybrid powertrain without transmission mechanism in the prior art requires dual motors to realize pure electric drive, and the motors are often overloaded in order to meet the torque and speed requirements during the driving process of the vehicle, resulting in power consumption. High, poor fuel economy

Method used

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Examples

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Embodiment 1

[0032] In order to solve the above technical problems, the present invention discloses a four-speed single-motor hybrid powertrain, see figure 1 , the hybrid powertrain includes an engine 1, an electric motor, a coupling planetary row, a transmission, a third clutch 20 and a second brake clutch 7, and the engine 1 and the electric motor serve as the transmission device through the coupling planetary row The power is transmitted to drive the vehicle through the output shaft 13 .

[0033] Specifically, the engine 1 includes an engine output shaft, the electric motor includes a motor rotor 3 and a motor stator 4, and the coupling planetary row includes a third sun gear 21, a third planetary gear 5, a second frame 6 and a second tooth ring 19, the engine 1 is connected to the second ring gear 19 through the engine output shaft, the motor is connected to the third sun gear 21 through the motor rotor 3, and the motor stator 4 is the motor rotor 3 provide electromagnetic driving for...

Embodiment 2

[0058] In this embodiment, different from Embodiment 1, refer to figure 2 1. The connection mode of the third clutch 20 is different, and the other connection modes are the same as those in the first embodiment. refer to figure 2 , one end of the third clutch 20 is connected to the second frame 6, and the other end is connected to the second ring gear 19. Preferably, the driving end of the third clutch 20 is connected to the second frame 6 connected, the passive end of the third clutch 20 is connected with the second ring gear 19 . The functions realized by the hybrid power in this embodiment are the same as the functions realized in Embodiment 1, and the principle of realizing the functions is also the same, which will not be repeated here.

Embodiment 3

[0060] In this embodiment, different from Embodiment 1, refer to image 3 1. The connection mode of the third clutch 20 is different, and the other connection modes are the same as those in the first embodiment. refer to image 3 , one end of the third clutch 20 is connected with the third sun gear 21 , and the other end is connected with the second ring gear 19 . Preferably, the driving end of the third clutch 20 is connected to the third sun gear 21 , and the passive end of the third clutch 20 is connected to the second ring gear 19 . The functions realized by the hybrid power in this embodiment are the same as the functions realized in Embodiment 1, and the principle of realizing the functions is also the same, which will not be repeated here.

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Abstract

The invention relates to the technical field of vehicle hybrid power and discloses a four-speed-gear single-motor hybrid power assembly. The assembly includes an engine, a motor, a coupling planet row, a speed variator and a second braking clutch; the engine and a power generator transmits power to the speed variator through the coupling planet row; the speed variator includes a combined planet row, a first clutch, a second clutch, a first braking clutch and a one-way clutch; through connection or separation of the arranged second braking clutch, pure electric driving or hybrid driving of theassembly is achieved, and through connection or separation of different combinations of the arranged first clutch, second clutch, first braking clutch and one-way clutch, power output of different speed gears is achieved, and different magnitudes of power is transmitted through the combined planet row. The problems are solved that only double motors in the prior art can achieve pure electric driving, motors are usually overloaded during work in order to meet the demands for torque and rotation speed during running of vehicles, the consumption of electric power is high, and the petrol saving performance is poor.

Description

technical field [0001] The invention relates to the technical field of vehicle hybrid power, and discloses a four-speed single-motor hybrid power assembly Background technique [0002] At present, on the market, some continuously variable transmission shunt hybrids require the motor to work in a large speed range. Working in the low-efficiency area of ​​the motor will cause a large loss, the heat generated by the motor is large, and the power loss is large. The charging distance is short, and the electric power cannot be fully utilized, and it is often required to work beyond the rated torque, which generates a lot of heat and requires a good cooling system. In addition, in the prior art, some hybrids still retain the function and structure of the torque converter of the automatic transmission, and still use the torque converter to start. Such hybrids have poor fuel-saving effect. Furthermore, there are still some hybrids that need to rely on dual motors to achieve pure ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K6/383
CPCB60K6/365B60K6/383
Inventor 梁健
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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