Multi-power-source multi-mode coupling drive system

A technology of coupled drive and power source, which is applied to the arrangement of multiple different prime movers of multi-gear ratio transmissions, general power units, power units, etc. and low reliability of work, to achieve the effect of high integration, high transmission efficiency, and few transmission parts

Inactive Publication Date: 2012-07-25
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this drive system, more clutches and first brakes are needed to achieve torque coupling and rotational speed; and when the power source is a hybrid system combining an engine and an electric motor, more clutches and brakes are needed to Realize pure electric mode, idling start-stop mode, driving assist mode, driving charging mode, engine independent driving mode, regenerative braking mode and other working modes, and the switching operation of each working mode is complicated; therefore, the hybrid drive system in the prior art The structure is more complicated, and the transmission efficiency and working reliability of the drive system are low

Method used

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  • Multi-power-source multi-mode coupling drive system
  • Multi-power-source multi-mode coupling drive system

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Embodiment 2

[0043] Embodiment 2: The difference between the implementation of this embodiment and Embodiment 1 is that the first power source 1 and the second power source 3 are both electric motors; this embodiment has the following working modes:

[0044] 1. The first power source works alone:

[0045] When the second power source 3 is not working and the synchronizer 14 is in an idle state, it is driven solely by the first power source 1 , and the first brake 6 brakes the third transmission shaft 5 to realize pure electric operation. When the first power source 1 and the second power source 3 are both electric motors, the first power source 1 can be used as the main power source, and the second power source 3 can be used as the auxiliary power source, then the main power source will be in a normal working state, which means The second brake 17 may not be provided during this time.

[0046] 2. Idle start-stop mode:

[0047] When the first power source 1 is not working, the synchronize...

Embodiment 3

[0054] Embodiment 3: The difference between the implementation of this embodiment and Embodiment 1 is that the first power source 1 and the second power source 3 are both engines; this embodiment has the following working modes:

[0055] 1. The driving mode of the first power source alone:

[0056] When the second power source 3 is not working, the synchronizer 14 is in an idle state, driven solely by the first power source 1 , and the first brake 6 brakes the third transmission shaft 5 .

[0057] 2. Idle start-stop mode:

[0058] When the first power source 1 is not working, the synchronizer 14 is in an empty state, the second power source 3 is working, and the drive system is in an idle start-stop state.

[0059] 3. Driving assistance mode:

[0060] When the first power source 1 and the second power source 3 work at the same time, and the synchronizer 14 is in the state of combining with the second gear 12 or the third gear 13, the second power source 3 can provide auxilia...

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Abstract

The invention discloses a multi-power-source multi-mode coupling drive system which comprises a first power source, a first transmission shaft, a second power source, a second transmission shaft, a third transmission shaft and a planetary gear mechanism consisting of a sun wheel, a planet wheel, a gear ring and a planet carrier, wherein a first gear and the sun wheel are fixed on the first transmission shaft; the gear ring and the first transmission shaft are in coaxial running fit; a second gear, a third gear and a synchronizer are arranged on the second transmission shaft; a fourth gear and a fifth gear are arranged on the third transmission shaft; the fourth gear is meshed with the third gear; and the fifth gear is meshed with the gear ring. When the synchronizer is combined with the second gear, torque coupling can be realized; when the synchronizer is combined with the third gear, the rotation speed coupling can be realized; and when the first power source and the second power source are the hybrid power of an electromotor and an engine, the system has multiple working modes, the switching among the working modes can be realized by controlling the synchronizer, and the control is simple.

Description

technical field [0001] The invention relates to an electric vehicle, in particular to a driving assembly of the electric vehicle. Background technique [0002] In existing hybrid drive systems with more than two power sources, clutches, first brakes and planetary gear mechanisms are generally used to couple torques and rotational speeds output by different power sources. However, in this drive system, more clutches and first brakes are needed to achieve torque coupling and rotational speed; and when the power source is a hybrid system combining an engine and an electric motor, more clutches and brakes are needed to Realize pure electric mode, idling start-stop mode, driving assist mode, driving charging mode, engine independent driving mode, regenerative braking mode and other working modes, and the switching operation of each working mode is complicated; therefore, the hybrid drive system in the prior art The structure is relatively complicated, and the transmission effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K6/44
CPCY02T10/6243F16H2037/0886Y02T10/623F16H2200/2005F16H3/725Y02T10/62
Inventor 胡明辉徐少芝秦大同赵金龙王斐谢红军
Owner CHONGQING UNIV
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