Emergency unlocking parking lock device and vehicle

A parking lock and unlocking technology, applied in the field of vehicle engineering, can solve the problems of large layout space requirements and high costs, and achieve the effects of low layout requirements, easy operation process, and convenient gear switching

Active Publication Date: 2021-02-09
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the automatic parking execution methods of vehicles include motor execution methods and hydraulic execution methods. Motor execution methods generally have relatively high costs and require a large layout space. The hydraulic execution methods in th

Method used

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  • Emergency unlocking parking lock device and vehicle
  • Emergency unlocking parking lock device and vehicle
  • Emergency unlocking parking lock device and vehicle

Examples

Experimental program
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Effect test

Embodiment

[0089] Refer below Figure 1-Figure 9 A vehicle according to a specific embodiment of the present invention is described. The vehicle includes a pressure input valve 100, a transmission and an emergency release parking lock device. The emergency release parking lock device includes a housing 1, a transmission member 2, a control module 3, a reversing valve 4, a hydraulic control valve 5, an emergency valve 6, a hydraulic control closing check valve 7 with a first elastic member 71, Emergency oil delivery mechanism 8, accumulator 9 and detection piece.

[0090] The housing 1 has a sealed chamber 111 . The housing 1 includes a valve plate 112 , a limiting member 12 and a third elastic member 13 . The valve plate 112 forms a sealed cavity 111 . The limiting member 12 is sheathed on the transmission member 2 , and the limiting member 12 is located between the valve plate 112 and the parking mechanism 140 . The third elastic member 13, one end of the third elastic member 13 abu...

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PUM

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Abstract

The invention discloses an emergency unlocking parking lock device. The emergency unlocking parking lock device comprises a shell, a transmission part, a control module, a reversing valve, a hydrauliccontrol valve, an emergency valve, a hydraulic control closed type one-way valve with a first elastic part, an emergency oil conveying mechanism, an energy accumulator and a detection part. The shellcomprises a sealed cavity. The transmission part is movably arranged in the shell in a penetrating mode. The control module comprises a self-locking mechanism, and the self-locking mechanism can automatically lock the transmission part. The self-locking mechanism can release the transmission part under the control of the control module or the pressure of hydraulic oil in an emergency cavity. After the self-locking mechanism releases the transmission part, the hydraulic control closed type one-way valve with the first elastic part can unblock an oil way between the emergency valve and the hydraulic valve in a one-way mode. The emergency oil conveying mechanism can manually convey the hydraulic oil in an oil tank into a first connector and a second pilot oil way. By means of the emergency unlocking parking lock device, gear shifting of a vehicle in an emergency state can be well achieved.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to an emergency unlocking parking lock device and a vehicle. Background technique [0002] In order to improve the electrification level of automatic transmissions, various OEMs have gradually adopted automatic parking solutions. At present, the automatic parking execution methods of vehicles include motor execution methods and hydraulic execution methods. Motor execution methods generally have relatively high costs and require a large layout space. The hydraulic execution methods in the prior art usually use mechanical locking structures. And relying on the conversion of the linear motion of the piston into rotary motion to increase the emergency unlocking mechanism, it also has high requirements for the layout space and position requirements. Contents of the invention [0003] The purpose of the present invention is to provide an emergency unlocking parking lock dev...

Claims

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Application Information

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IPC IPC(8): F16H63/34F16H63/40
CPCF16H63/34F16H63/40F16H63/3483F16H61/0206
Inventor 毛泽贤唐立中
Owner CHINA FIRST AUTOMOBILE
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