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A kind of emergency release parking lock device and vehicle

A parking lock and unlocking technology, applied in the field of vehicle engineering, can solve the problems of high cost and large layout space requirements, and achieve the effect of easy operation process, low layout requirements and low cost

Active Publication Date: 2022-01-18
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 the prior art usually use mechanical locking structures. And rely on the linear motion of the piston to be converted into rotary motion to increase the emergency unlocking mechanism, so that it also has high requirements for layout space and position requirements

Method used

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  • A kind of emergency release parking lock device and vehicle
  • A kind of emergency release parking lock device and vehicle
  • A kind of emergency release 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 cavity 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 sleeved 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 abuts o...

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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 includes a housing, a transmission part, a control module, a reversing valve, a hydraulic control valve, an emergency valve, and a hydraulic control valve with a first elastic part. Closed check valve, emergency oil delivery mechanism, accumulator and detection parts. The housing has a sealed cavity. The transmission member can be movably passed through the casing. The control module includes a self-locking mechanism, which can automatically lock the transmission part. The self-locking mechanism can release the transmission part under the control of the control module or under the pressure of the hydraulic oil in the emergency chamber. After the self-locking mechanism releases the transmission part, the hydraulically controlled closing check valve with the first elastic part can conduct the oil circuit between the emergency valve and the hydraulic valve in one direction. The emergency oil delivery mechanism can manually deliver the hydraulic oil in the oil tank to the first interface and the second pilot oil circuit. The emergency unlocking and parking lock device of the present invention can better realize gear shifting of the vehicle in an emergency state.

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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Patent Type & Authority Patents(China)
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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