Single-motor power-split coupled transmission system

A single motor, power technology, applied in the direction of electric power device, control device, power device, etc., can solve the problems of shifting power interruption, troublesome control, complex structure, etc., to improve reliability, avoid motor idle, and enhance versatility Effect

Active Publication Date: 2013-09-18
CHINA NORTH VEHICLE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is how to overcome the complex mechanical structure of the existing transmission device, power interruption and troublesome operation of gear shifting, and how to provide a transmission system with simple structure and convenient operation for electric vehicles or unmanned vehicles

Method used

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Embodiment Construction

[0032] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] In order to solve the problems of the prior art, the present invention provides a single-motor power-split coupled speed change system, such as figure 1 and figure 2 As shown, the transmission system includes: a differential 1, a power output gear 2, a drive motor 4, a low-speed transmission driven gear 3, a low-speed transmission driving gear 5, a high-speed transmission driven gear 9 with a low reduction ratio or constant speed transmission , high-speed transmission driving gear 8, first hydraulic clutch 6, second hydraulic clutch 10 and electronically controlled hydraulic valve 7;

[0034]Described differential 1 comprises: left side shaft gear 1-2, right side shaft gear 1-4, the differential case 1-1 that ...

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Abstract

The invention relates to the technical field of electric drive vehicles or automated vehicles, in particular to a single-motor power-split coupled transmission system applicable to electric vehicles or automated vehicles. The single-motor power-split coupled transmission system has a simple structure, achieves the transmission of vehicles through a single motor, meets the requirement of multiple working conditions of the vehicles on power output, and adopts the single motor to avoid the condition of motor idle under certain working conditions, a hydraulic clutch of the system is linked to ensure reliable combination of transmission lines, the same type of the same series can be selected, so that the universality of system parts is enhanced, the problem of power interrupt during the gear-shifting period of a common gearbox is avoided, a differential mechanism is taken as a rotating speed coupled device, and mature components in the automobile industry can be used, so that the cost is lowered, and the system reliability is improved, and during the special implementation process, the functions of a hydraulic circuit of an electro-hydraulic valve are combined with those of a lubricating oil circuit of the whole system, so that the integration level of the system is further beneficial to improvement.

Description

technical field [0001] The invention relates to the technical field of electric drive vehicles or unmanned vehicles, in particular to a single-motor power split coupling transmission system applied to electric vehicles or unmanned vehicles, which uses single-motor power split and then coupled to achieve speed change. Background technique [0002] Electric vehicles have the advantages of zero emissions during driving, diversified and efficient energy utilization, and convenient realization of intelligence, making them one of the focuses of new vehicle research and development. At present, more and more electric drive technology is used in civilian cars, buses, especially unmanned vehicles. [0003] At present, the electric drive device of a vehicle generally adopts a combination of a motor and a gearbox or a motor drive unit directly drives the wheels. [0004] The gearbox can adjust the output torque and speed of the motor through different gears to meet the requirements of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/00B60K17/08
Inventor 卢国轩苏波朱峰温长兴张振宇何亚丽蓝伟马睿璘刘兴杰杨树岭姚其昌江磊赵洪恒
Owner CHINA NORTH VEHICLE RES INST
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