Drive shaft locking device, power drive system and vehicle

A locking device and drive shaft technology, applied in the field of vehicles, can solve the problems of wasting the differential function of the differential, occupying a lot of space, and many parts, and achieve the effect of reliable function realization, low cost and few parts

Active Publication Date: 2018-07-03
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the related technology, the new energy vehicle adopts a distributed drive mode, and two motors drive the wheels on both sides respectively. The speed and torque of the left and right wheels can be independently adjusted by the controller, which cancels the differential. In some slippery road conditions, it is still necessary to lock the left and right axle shafts to improve vehicle passability
If the traditional electric locking differential is applied to distributed drive new energy vehicles, the differential function of the differential will be wasted, and the traditional electric locking differential has a complex structure and many parts. takes up more space

Method used

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  • Drive shaft locking device, power drive system and vehicle
  • Drive shaft locking device, power drive system and vehicle
  • Drive shaft locking device, power drive system and vehicle

Examples

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Embodiment Construction

[0049] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0050] The drive shaft locking device 100 according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The drive shaft locking device 100 can be applied to vehicles, especially for new energy vehicles using distributed drive. The drive shaft locking device 100 It can be used to lock two drive shafts, so that the left and right wheels can rotate synchronously, which can greatly improve the ability of the vehicle to get out of trouble. The vehicle can be an electric vehicle, but not limited thereto.

[0051] Such as figure 1 with figure 2 As shown, the drive shaft locking device 100 according...

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Abstract

The invention discloses a drive shaft locking device, a power drive system and a vehicle. The drive shaft locking device comprises a planet gear mechanism, a first drive shaft, a second drive shaft, apower connecting device and a hydraulic type drive device. The power connecting device comprises a first connecting part and a second connecting part, a planet carrier, the first drive shaft and thefirst connecting part rotate synchronously, the first connecting part can axially move relative to the first drive shaft, and the second drive shaft, the second connecting part and a sun gear rotate synchronously; and the hydraulic type drive device comprises a drive pin and a hydraulic type drive part, the drive pin can rotate around the central axis of the sun gear along with a gear ring and canaxially move relative to the gear ring, the hydraulic type drive part is arranged to be used for driving the drive pin to drive the first connecting part to axially move in the direction close to thesecond connecting part, and therefore the first connecting part is connected with the second connecting part. Therefore, the drive shaft locking device can lock the two drive shafts, and the dilemmaridding capacity of the vehicle can be improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a drive shaft locking device for a vehicle, a power drive system with the drive shaft lock device, and a vehicle with the power drive system. Background technique [0002] In the related technology, the new energy vehicle adopts a distributed drive mode, and two motors drive the wheels on both sides respectively. The speed and torque of the left and right wheels can be independently adjusted by the controller, which cancels the differential, but in a In some slippery road conditions, it is still necessary to lock the left and right axle shafts to improve vehicle passability. If the traditional electric locking differential is applied to distributed drive new energy vehicles, the differential function of the differential will be wasted, and the traditional electric locking differential has a complex structure and many parts. Take up more space. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/04B60K17/16B60T1/06
CPCB60K17/04B60K17/165B60T1/06
Inventor 凌和平范泽义翟震黄长安罗永孟
Owner BYD CO LTD
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