Multi-gear rotatable hub power assembly

A powertrain and rotating wheel technology, which is applied in the field of multi-speed rotatable hub powertrains, can solve the problems of inability to meet complex and changeable, single operating conditions, and poor driving flexibility of vehicles with operating requirements.

Pending Publication Date: 2021-07-06
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at problems such as the single transmission ratio and operating conditions of the existing automobile hub motors, which cannot meet the complex and changeable operating requirements and the poor driving flexibility of the vehicle, the present invention uses two sets of planetary gear trains for transmission to realize the multi-gear output of the ring gear. And a set of electric push rods is used to realize the 90° steering of the tires, so as to realize the lateral walking of the vehicle

Method used

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  • Multi-gear rotatable hub power assembly
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  • Multi-gear rotatable hub power assembly

Examples

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Embodiment

[0026] Example: see figure 1 , a multi-gear rotatable hub power assembly includes a motor 7, two planetary gear trains, electric push rods 12 and 15, supporting piston cylinders 13 and 14, and a first brake B 1 , the second brake B 2 , tire support 16 and vehicle frame 17 are formed.

[0027] For the transmission module, on the one hand, the left end of the rotor of the motor 7 is fixedly connected with the sun gear 2 in the left planetary gear system, and the power is directly transmitted to the sun gear 2, the sun gear 2 and the planetary gear 4 are externally meshed, and the planetary carrier 3 and the planetary gear 4 pass through The bearing forms a revolving pair, the planetary gear 4 meshes internally with the ring gear 5, and the ring gear 5 is fixedly connected inside the hub 6 to output power with a certain transmission ratio; on the other hand, the right end of the rotor of the motor 7 and the sun gear in the right planetary gear 11 is solidly connected, and the p...

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Abstract

The invention discloses a multi-gear rotatable hub power assembly which is characterized by mainly comprising a motor, two planetary gear trains, two brakes, two electric push rods, two supporting piston cylinders and a hub; the two electric push rods are hinged to a tire support and a frame respectively, and left-right steering of a tire is achieved through telescopic matching of the two electric push rods; the two supporting piston cylinders are hinged to the center line of the tire support and fixed to a vehicle frame to play a supporting role. Besides, a group of planetary gear train transmission is added on the basis of the previous generation of wheel-side driving device, so that the transmission gears of a hub motor are increased, and the adaptive capacity of an electric vehicle to different road conditions is improved. The two planetary gear trains are symmetrically arranged relative to the motor, the structure is compact, gear shifting operation is easy and convenient, tires can steer by 90 degrees, transverse running of a vehicle is achieved, the problem that an existing electric vehicle hub motor is limited in the transmission ratio and steering aspect is solved, and good practical value is achieved.

Description

technical field [0001] The invention belongs to the field of electric vehicle drive and steering, and in particular relates to a multi-gear rotatable hub power assembly. Background technique [0002] With the continuous development of new energy vehicle technology, electric drive technology is more and more used in vehicles, among which hub motors become one of the driving devices of electric vehicles. The so-called in-wheel motor means that the motor, transmission gear and braking device are all placed in the wheel, and the wheel is directly driven through the rotor. The emergence of in-wheel motors reduces the structure of transmissions, drive shafts, differentials and half shafts in pure electric vehicles, reduces the space occupied by each device on the interior of the vehicle, and is more conducive to the layout of the vehicle, and the power is generated from the wheels , which is directly output by the wheels, reduces the energy loss caused by intermediate transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00B60K17/04B60T1/06H02K7/116
CPCB60K7/0007B60K17/046B60T1/06H02K7/116B60K2007/0038B60K2007/0092Y02T10/64
Inventor 陈奇侯庆伟唐查强张彦尹延国吴焱明
Owner HEFEI UNIV OF TECH
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