Title:
MECHANICAL UNLOCKING MECHANISM FOR ELECTRONIC PARKING
Document Type and Number:
WIPO Patent Application WO/2021/184454
Kind Code:
A1
Abstract:
Disclosed is a mechanical unlocking mechanism for electronic parking. The mechanical unlocking mechanism comprises a parking cam assembly, a pawl assembly, a pull rod assembly and a parking gear. The parking cam assembly comprises a parking guide shaft and a parking cam, the parking cam is sleeved on the parking guide shaft, two sides of the parking cam are at least provided with a first protrusion part and a second protrusion part, and the second protrusion part is provided with a connecting part; the pull rod assembly is connected to the parking cam by means of the connecting part, and the pull rod assembly pulls the second protrusion part to drive the parking cam to rotate; and the parking gear can be fixed or rotate according to the pawl assembly being respectively located at a first position where the pawl assembly is engaged with the parking gear or a second position where the pawl assembly is disengaged with the parking gear along with rotation of the parking cam. The mechanical unlocking mechanism of the present invention provides an emergency mechanical unlocking function when a parking electric motor is powered off, a driver can achieve manual mechanical unlocking in a cab, and the driver does not need to leave the vehicle for operation; and the safety performance is high, and the operation comfort is good.
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Inventors:
HOU DEFENG (CN)
SUN RAN (CN)
LI JIANWEN (CN)
SUN RAN (CN)
LI JIANWEN (CN)
Application Number:
PCT/CN2020/083762
Publication Date:
September 23, 2021
Filing Date:
April 08, 2020
Export Citation:
Assignee:
JING JIN ELECTRIC TECH CO LTD (CN)
International Classes:
F16H63/34
Domestic Patent References:
| WO2011090614A2 | 2011-07-28 |
Foreign References:
| CN106439000A | 2017-02-22 | |||
| CN210034382U | 2020-02-07 | |||
| CN206812976U | 2017-12-29 | |||
| CN108980344A | 2018-12-11 | |||
| CN107606146A | 2018-01-19 | |||
| DE102007007681A1 | 2008-08-21 |
Other References:
See also references of EP 4102110A4
Attorney, Agent or Firm:
BEIJING LONGAN LAW FIRM (CN)
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