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Double-motor double-planetary row electric driving device and working method thereof

A driving device and dual-motor technology, applied in the direction of electric power device, power device, control device, etc., can solve problems such as insufficient stability, loss of energy transmission, and complex structure of the device

Active Publication Date: 2017-10-13
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the device is too complicated, and a coupling is set between the first ring gear and the second ring gear, which makes the structure of the device more complicated, and there are energy transmission losses and noise
In addition, the No. 1 motor and the No. 2 motor of the device are arranged in parallel, which makes the stability of the device insufficient

Method used

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  • Double-motor double-planetary row electric driving device and working method thereof
  • Double-motor double-planetary row electric driving device and working method thereof
  • Double-motor double-planetary row electric driving device and working method thereof

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] The dual-motor dual-planetary electric driving device of the present invention comprises a No. 1 motor 3, a No. 2 motor 7, a front planetary gear mechanism 5, a rear planetary gear mechanism 9, a first brake 1, a second brake 4 and a clutch 14; The planetary gear mechanism 5 is composed of the front sun gear 16, the front planetary gear set 6, the double planet planet carrier 8 and the front ring gear connected in the housing 2, and the rear planetary gear mechanism 9 is composed of the rear sun gear 12. The rear planetary gear set 11, the double planetary planet carrier 8 and the rear ring gear 10; the rotor of the No. 1 motor is connected with the front sun gear 16 through the hollow shaft 15, and the rotor of the No. 2 motor is connected through the sun gear main shaft 13 Connected with the rear sun gear 12, the left side of...

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Abstract

The invention relates to a double-motor double-planetary row electric driving device and a working method thereof. The double-motor double-planetary row electric driving device comprises a first motor 3, a second motor 7, a front-row planetary wheel mechanism 5, a rear-row planetary wheel mechanism 9, a first brake 1, a second brake 4 and a clutch 14. According to the double-motor double-planetary row electric driving device and the working method thereof, a hollow shaft is adopted in a main shaft of the first motor, the weight of the system is greatly reduced, the structure of the system is greatly simplified, and thus the layout of the double-motor double-planetary row electric driving device is more compact, and the driving efficiency is higher; according to demands of vehicles under different situations, by controlling the states of the clutch and the brakes, the vehicles can be switched to different work modes, the dynamic performance of the vehicles under different work conditions is satisfied, and thus the efficiency of the motors is greatly improved.

Description

Technical field: [0001] The invention relates to an electric drive device suitable for various pure electric cars, passenger cars and other types of vehicles, in particular to a double-motor double-planetary electric drive device and its working method. Background technique: [0002] At present, the mainstream pure electric vehicle power system mainly adopts the scheme of single motor and final reducer, and the stepless speed regulation is carried out through the motor. This kind of power system has simple mechanism, easy overall layout, relatively easy control, and relatively low manufacturing cost. However, the use of a single motor and a simple reducer makes the drive system less efficient. [0003] The Chinese patent application number 201210024534.9 discloses a double-motor coupling speed change device, which consists of two motors, a set of single-row planetary gear mechanisms, a set of fixed-axis gear mechanisms, two clutches and a lock. The device can realize thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/12B60K1/02
CPCB60K1/02B60K17/12
Inventor 姚立纲邓建旺任铖铖余捷
Owner FUZHOU UNIV
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