Multi-layer parking system for all-electric vehicle

A multi-layer, pure electric technology, applied in the field of vehicle transmission system, can solve the problems that do not meet the electric powertrain of pure electric vehicles, high radial dimension requirements of electric powertrain, small axial length of parking system, etc. , to achieve the effect of reducing the moment of gravity, facilitating assembly and maintenance, and reducing the radial size

Pending Publication Date: 2017-01-25
昆山德拉特兰传动科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the motor controller is much larger than the engine controller, and the motor controller is usually arranged above the motor, the radial dimension of the electric powertrain is required to be relatively high
[0004] Due to the difference in the structure of the powertrain of the pure electric vehicle and the powertrain of the conventional fuel vehicle, there are differences in the size requirements of the powertrain in all directions, while the parking actuator in the parking system of the conventional fuel vehicle Usually arranged on the side of the ratchet, so that the parking system has a smaller axial length and a larger radial dimension, which obviously does not meet the requirements of the electric powertrain of pure electric vehicles

Method used

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  • Multi-layer parking system for all-electric vehicle
  • Multi-layer parking system for all-electric vehicle
  • Multi-layer parking system for all-electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 and figure 2As shown, a multi-level parking system for pure electric vehicles includes a housing 1, a ratchet 2, a pawl 3, a pawl shaft 7, a torsion spring 9, a cam disc 4, a drive member 5 and a drive shaft 6 The ratchet is fixedly installed on the rotating shaft 8 in the transmission that maintains power transmission with the wheels all the time; the rotating shaft 8 of the ratchet 2 can be arranged coaxially with the drive shaft 6 or not. In this embodiment, the rotation shaft 8 of the ratchet 2 is coaxially arranged with the drive shaft 6 . A hole for supporting the pawl shaft 7 and the drive shaft 6 is arranged on the housing 1, the pawl shaft and the drive shaft are not coaxially arranged on the housing, and one end of the pawl shaft is fixed on the housing 1, The other end can be installed on the transmission housing, the pawl is rotatably arranged on the pawl shaft; the cam disc is rotatably arranged on the drive shaft, and the driving member is...

Embodiment 2

[0059] like Figure 8 As shown, compared with Embodiment 1, the difference between the multi-level parking system for pure electric vehicles shown in Embodiment 2 is that the housing is fixed with a The limit block A101 and the limit block B102 that prevent the cam plate from exceeding the fully unlocked position. That is, the limit block A and the limit block B are fixed on the housing 1, respectively corresponding to the fully parked position and the fully unlocked position, to limit the limit rotation position of the cam disc, and prevent the cam disc from exceeding the fully parked position or the fully unlocked position.

[0060] Preferably, a limit block C for preventing the driving member from exceeding the fully parked position and a limit block D for preventing the drive member from exceeding the fully unlocked position are affixed to the housing. That is, the limit block C and the limit block D are fixed on the housing 1, respectively corresponding to the fully park...

Embodiment 3

[0062] like Figure 9 As shown, compared with Embodiment 1, the multi-storey parking system for pure electric vehicles shown in Embodiment 3 also includes a sensor 11, and the sensor 11 detects the angular position of the drive shaft rotation, thereby detecting in real time the parking system used for pure electric vehicles. The working state of the multi-storey parking system of the vehicle realizes the closed-loop control of the parking system.

[0063] The multi-layer parking system of the present invention is arranged on the outside of the transmission, which is beneficial to the installation and maintenance of the parking system, and enables the same parking system to be matched to similar vehicles, thereby improving the multi-layer parking for pure electric vehicles The application range of the system improves the safety of pure electric vehicles. Since each mechanism of the parking system is arranged in multiple layers, the radial dimension of the parking system can be...

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PUM

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Abstract

The invention discloses a multi-layer parking system for all-electric vehicle. The system comprises a casing, a ratchet wheel, a ratchet, a ratchet shaft, a torsional spring, a cam disc, a driving piece and a driving shaft, wherein the ratchet wheel is fixedly mounted on a rotating shaft enabling a wheel to always keep power transmission in a speed changer; the ratchet shaft and the driving shaft do not share one shaft and are arranged on the casing; the cam disc is rotationally arranged on the driving shaft; the driving piece is fixed on the driving shaft; the ratchet is rotationally arranged on the ratchet shaft; the driving shaft rotates positively and negatively and can drive the driving piece to rotate positively and negatively with the driving shaft; the driving piece further drives the cam disc to rotate positively and negatively around the driving shaft; the cam disc further drives the ratchet to rotate positively and negatively around ratchet shaft, so as to enable the ratchet and the ratchet wheel to be meshed with each other for parking or be separated from each other for unlocking; the torsional spring is pre-tightened and is mounted on the ratchet shaft, and provides an elastic force for pushing the ratchet to rotate to an unlocking direction. All mechanisms of the system adopt multilayer arrangement, so that the radial dimension of the system can be greatly shortened, and the system is convenient to mount and maintain.

Description

technical field [0001] The invention relates to vehicle drive system technology, in particular to a multi-level parking system for pure electric vehicles. Background technique [0002] In conventional fuel vehicles, the parking system is usually integrated inside the transmission. This is due to the low efficiency of the engine. In order to better exert the power and economy of the engine, more gears are usually required, so that the axial length of the transmission At the same time, due to the long axial dimension of the engine, in order to arrange the powertrain composed of the engine and transmission inside the engine compartment, there are strict restrictions on the axial length of the powertrain, while the radial dimensions such as width and height lower requirements. [0003] However, in pure electric vehicles, since the length and diameter of the motor are much smaller than that of the engine, and because the efficiency of the motor is much higher than that of the en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/08F16H63/34
CPCF16H63/3433B60K17/08F16H2200/0021
Inventor 何祥延袁一卿张寅
Owner 昆山德拉特兰传动科技有限公司
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