WO2021184454A1 - 一种电子驻车的机械解锁机构 - Google Patents

一种电子驻车的机械解锁机构 Download PDF

Info

Publication number
WO2021184454A1
WO2021184454A1 PCT/CN2020/083762 CN2020083762W WO2021184454A1 WO 2021184454 A1 WO2021184454 A1 WO 2021184454A1 CN 2020083762 W CN2020083762 W CN 2020083762W WO 2021184454 A1 WO2021184454 A1 WO 2021184454A1
Authority
WO
WIPO (PCT)
Prior art keywords
parking
pawl
cam
assembly
mechanical unlocking
Prior art date
Application number
PCT/CN2020/083762
Other languages
English (en)
French (fr)
Inventor
侯得锋
孙冉
李建文
Original Assignee
精进电动科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 精进电动科技股份有限公司 filed Critical 精进电动科技股份有限公司
Priority to US17/802,130 priority Critical patent/US11808351B2/en
Priority to EP20925824.3A priority patent/EP4102110B1/en
Priority to JP2022556128A priority patent/JP7277673B2/ja
Publication of WO2021184454A1 publication Critical patent/WO2021184454A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/3416—Parking lock mechanisms or brakes in the transmission
    • F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/3416—Parking lock mechanisms or brakes in the transmission
    • F16H63/3491—Emergency release or engagement of parking locks or brakes

Definitions

  • the invention relates to the field of parking control, in particular to a mechanical unlocking mechanism for electronic parking.
  • the gearbox electronic parking mechanism is a mechanism that prevents the vehicle from sliding or rolling backwards when the car is parked on the road or on a slope.
  • most new energy transmission electronic parking mechanisms have insufficient structural flexibility and limited product life cycles; and the mechanical unlocking mechanism is arranged at the worm of the parking motor. After the parking motor loses power, this unlocking method requires the driver to Only by operating under the vehicle can the mechanical unlocking be implemented, which has low safety and poor comfort.
  • the present invention proposes a mechanical unlocking mechanism for electronic parking to solve or partially solve the above-mentioned problems.
  • the present invention provides a mechanical unlocking mechanism for electronic parking.
  • the mechanical unlocking mechanism includes a parking cam assembly, a pawl assembly, a pull rod assembly and a parking gear;
  • the parking cam assembly includes a parking guide shaft and a parking cam, the parking cam is sleeved on the parking guide shaft, and at least a first protrusion and a parking cam are provided on both sides of the parking cam A second protrusion, a connecting portion is provided on the second protrusion;
  • the pawl assembly includes a pawl, and one end of the pawl assembly abuts against the first protrusion;
  • the pull rod assembly is connected to the parking cam through the connecting portion, and the pull rod assembly pulls the second protrusion to drive the parking cam to rotate;
  • the pawl assembly is in a first position parked with the parking gear and a second position parked with the parking gear according to the rotation of the parking cam, so The parking gear can be fixed or rotated.
  • the connecting portion is a groove
  • the groove is a through groove or a blind groove
  • the shape of the groove is an arc, a circle, or a polygon.
  • the pull rod assembly includes a connecting rod, a pin and a retaining ring;
  • One end of the connecting rod is installed in the groove through the pin, and the outer side of the pin contacting the connecting rod is provided with the retaining ring for fixing the pin;
  • the parking cam is driven to rotate by pulling the connecting rod.
  • the pull rod assembly further includes a pull rod and a sealing ring
  • the pull rod is installed on the guide hole of the gearbox case leading to the outside with a clearance fit.
  • the seal ring is provided between the pull rod and the gearbox case; one end of the pull rod is connected to the pin through the pin.
  • the connecting rod is movably connected, and the outer side of the pin contacting the connecting rod and the pull rod is provided with the retaining ring for fixing the pin.
  • the first protrusion is provided with an arc-shaped protrusion in the circumferential direction, the arc-shaped protrusion is in contact with the pawl assembly, and the parking cam assembly further includes an axial limit block, a parking Cam limit plate, paddle spring;
  • the parking cam limit plate is fixed on the parking guide shaft, the axial limit block is interference sleeved on the parking guide shaft, and the parking cam is sleeved in the axial direction.
  • the parking cam limit plate can drive the parking cam to rotate;
  • the paddle spring provides the return force after mechanical unlocking and the continuous power during parking.
  • the pawl assembly further includes a roller and a roller pin
  • the end of the pawl is provided with a groove, the roller is fixed in the groove by the roller pin, the roller abuts the first protrusion, and the lower part of the pawl is provided There are bumps that can mesh with the parking gear.
  • the pawl assembly further includes a pawl shaft and a torsion spring, the pawl shaft is arranged on one side of the pawl, and the pawl can swing around the pawl shaft;
  • the pawl rotating shaft is fixed on both sides of the gearbox, and the pawl can rotate around the pawl rotating shaft;
  • the torsion spring One end is fixed on the gearbox case, and the other end is fixed on the pawl, so that the pawl is pre-pressed with the parking cam.
  • the mechanical unlocking mechanism further includes an anti-torsion spring failure component
  • the anti-torsion spring failure component includes a guide pin and a guide groove
  • the guide pin is provided at the end of the guide portion at the end of the pawl.
  • the guide groove is arranged on the parking cam and/or the parking cam limit plate, and the guide pin extends into the guide groove.
  • the mechanical unlocking mechanism of the present invention can provide an emergency mechanical unlocking function when the parking motor is powered off.
  • the parking cam is connected to the control part in the cab through the tie rod assembly, so that the driver can mechanically unlock in the cab;
  • the unlocking mechanism can realize the unlocking of the cab under pure machinery and without power supply, without the driver getting off the car, and has high safety performance and good operating comfort; In the event of a fault, the parking can still be unlocked, and the pawl can be effectively prevented from falling into the parking gear slot in the non-parking state.
  • Figure 1 shows a schematic structural diagram of a mechanical unlocking mechanism for electronic parking in an embodiment of the present invention
  • Figure 2 shows a structural schematic diagram of a parking cam and a pawl in a parking state in an embodiment of the present invention
  • Fig. 3 shows a schematic structural diagram of a parking cam and a pawl after being mechanically unlocked in an embodiment of the present invention.
  • the present invention provides a mechanical unlocking mechanism for electronic parking.
  • the mechanical unlocking mechanism includes a parking cam assembly, a pawl assembly, a pull rod assembly and a parking gear 1.
  • the parking cam assembly includes a parking guide shaft 10 and a parking cam 13.
  • the parking cam 13 is sleeved on the parking guide shaft 10, and at least a first protrusion and a parking cam 13 are provided on both sides of the parking cam 13
  • the second convex part is provided with a connecting part on the second convex part; one end of the parking guide shaft 10 is a flat shaft, and the other end is a round shaft.
  • the parking guide shaft 10 penetrates the transmission case, and the parking guide shaft 10
  • the flat shaft end is connected to the parking motor, and the parking motor drives the parking guide shaft 10 to rotate.
  • the pawl assembly includes a pawl 2, and one end of the pawl assembly abuts against the first protrusion.
  • the pull rod assembly is connected to the parking cam 13 through the connecting portion, and the pull rod assembly pulls the second protrusion to drive the parking cam 13 to rotate.
  • the different over positions of the first protrusion abut the pawl assembly, so that the pawl assembly is in the first position parked with the parking gear 1 or in the parking position with the parking gear 1 The second position.
  • the mechanical unlocking structure in the embodiment of the present invention can provide a mechanical unlocking method when the parking motor loses power and cannot achieve parking unlocking.
  • the lever assembly drives the parking cam 13 to rotate, so that the parking pawl assembly and The positional relationship of the parking gear 1 is changed from the first parking position to the second parking position, thereby realizing the unlocking of the parking.
  • the mechanical unlocking mechanism of this embodiment does not need to be mechanically unlocked at the bottom of the vehicle, and the mechanical unlocking mechanism is simple in operation, high in safety, and good in comfort.
  • the connecting portion is a groove
  • the groove is a through groove or a blind groove
  • the shape of the groove is an arc, a circle, or a polygon.
  • the pull rod assembly includes a connecting rod 7, a pin 6 and a retaining ring 8.
  • One end of the connecting rod 7 is installed in the groove through a pin 6, the connecting rod 7 is movably connected with the parking cam 13, and the outer side of the pin 6 contacting the connecting rod 7 is provided with a retaining ring 8 for fixing the pin 6.
  • the tie rod assembly further includes a tie rod 5 and a sealing ring.
  • the tie rod 5 is installed on the guide hole leading to the outside of the gearbox case with clearance fit.
  • a sealing ring is arranged between the tie rod 5 and the gearbox case;
  • a retaining ring is provided on the outside of the contact between the rod 7 and the pull rod 5 for fixing the pin 6.
  • One end of the tie rod 5 is movably connected with the connecting rod 7 through the pin 6, and the other end of the tie rod 5 is connected to the control part in the cab through the whole vehicle cable or the whole vehicle tie rod; the driver pulls the tie rod 5 through the control part in the cab to realize The rotation of the parking cam 13 realizes mechanical unlocking.
  • the first protrusion is provided with an arc-shaped protrusion in the circumferential direction, and the arc-shaped protrusion is in contact with the pawl assembly.
  • the pawl assembly is pressed down and meshes with the parking gear 1 to realize parking.
  • the position structure of the parking cam 13 and the pawl 2 is shown in Figure 2;
  • the first protrusion other than the protrusion abuts the pawl assembly, the pawl assembly rises and separates from the parking gear 1 to realize parking.
  • the position structure of the parking cam 13 and the pawl 2 is shown in FIG. 3.
  • the parking cam assembly also includes an axial limit block 9, a parking cam limit plate 11, and a paddle spring 12.
  • the parking cam limit plate 11 is fixed on the parking guide shaft 10, the axial limit block 9 is sleeved on the parking guide shaft 10, and the parking cam 13 is sleeved on the axial limit block 9 and parking.
  • the parking cam limiting plate 11 can drive the parking cam 13 to rotate.
  • the parking cam limiting plate 11 includes at least a first blade portion and a second blade portion that are spaced apart. On both sides, the side of the first blade portion facing the first protrusion is provided with a first spring post, the first protrusion is provided with a corresponding second spring post, and the first spring post and the second spring post are sleeved There is a paddle spring 12; the second blade portion is formed with a curved claw, and the curved claw abuts on the other side of the first protrusion.
  • the pawl assembly further includes a roller 14 and a roller pin 15.
  • the end of the pawl 2 is provided with a groove
  • the roller 14 is fixed in the groove by a roller pin 15
  • the roller 14 abuts the first protrusion
  • the lower part of the pawl 2 is provided with a bump that can stay with The car gear 1 meshes.
  • the roller 14 can roll along the radial direction of the roller pin 15.
  • the design of the roller 14 is to reduce the friction and wear of the joint between the upper part of the pawl 2 and the parking cam 13 and improve its service life.
  • the pawl assembly further includes a pawl rotating shaft 3 and a torsion spring 4.
  • the pawl rotating shaft 3 is arranged on one side of the pawl 2, and the pawl 2 can swing around the pawl rotating shaft 3.
  • One side of the pawl 2 is sleeved on the pawl shaft 3.
  • the pawl shaft 3 is fixed on both sides of the gearbox.
  • the pawl 2 can rotate around the pawl shaft 3; one end of the torsion spring 4 is fixed on the gearbox On the box body, the other end is fixed on the pawl 2 so that the pawl 2 and the parking cam 13 are pre-pressed. Under the action of the torsion spring 4, it is ensured that the pawl 2 always abuts against the parking cam 13.
  • the mechanical unlocking mechanism further includes an anti-torsion spring failure component.
  • the anti-torsion spring failure component includes a guide pin and a guide groove.
  • the guide pin is provided at the end of the pawl 2.
  • the guide pin extends into the guide groove, and the guide groove provides a guiding function for lifting the pawl 2 during emergency unlocking.
  • the pawl 2 can be movably connected with the parking cam 13. Even if the torsion spring 4 fails, due to the rotation of the parking cam 13, the pawl 2 is driven by the guide pin. Lift to separate the bump at the lower part of the pawl 2 from the parking gear 1, and then unlock the parking. In the non-parking state, the guide pin is attached to the bottom of the guide groove of the parking cam 13 to prevent the pawl 2 from falling into the tooth groove of the parking gear 1.
  • the torsion spring failure prevention component in this embodiment overcomes the problem that the torsion spring 4 cannot be unlocked normally due to the failure of the torsion spring 4 or the like.
  • the present invention provides a mechanical unlocking mechanism for electronic parking.
  • the mechanical unlocking mechanism includes a parking cam assembly, a pawl assembly, a pull rod assembly and a parking gear;
  • the parking cam assembly includes a parking guide shaft and a parking cam, The parking cam is sleeved on the parking guide shaft, at least a first protrusion and a second protrusion are provided on both sides of the parking cam, and a connecting portion is provided on the second protrusion;
  • the pawl assembly includes The pawl, one end of the pawl assembly is in contact with the first protrusion;
  • the pull rod assembly is connected to the parking cam through the connecting portion, and the pull rod assembly pulls the second protrusion to drive the parking cam to rotate;
  • the parking gear is in accordance with the pawl With the rotation of the parking cam, the components are respectively in a first position parked with the parking gear and a second position parked with the parking gear, and the parking gear can be fixed or rotated.
  • the mechanical unlocking mechanism provided by the present invention provides an emergency mechanical unlocking function when the parking motor is powered off.
  • the parking cam is connected to the control in the cab through a tie rod assembly, so that the driver can achieve mechanical unlocking in the cab; the mechanical unlocking
  • the mechanism can realize manual unlocking in the cab under pure machinery and no power supply, without the driver getting off the car for operation; high safety performance and good operating comfort.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Braking Arrangements (AREA)

Abstract

本发明公开了一种电子驻车的机械解锁机构，包括驻车凸轮组件、棘爪组件、拉杆组件和驻车齿轮；驻车凸轮组件包括驻车导轴和驻车凸轮，驻车凸轮套设在驻车导轴上，在驻车凸轮的两侧至少设有第一凸起部和第二凸起部，在第二凸起部上设有连接部；拉杆组件通过连接部与驻车凸轮连接，拉杆组件牵拉第二凸起部，带动驻车凸轮旋转；根据棘爪组件随着驻车凸轮的旋转分别处于与驻车齿轮驻入的第一位置和与驻车齿轮驻出的第二位置，驻车齿轮能够固定或旋转。本发明提供的机械解锁机构提供了驻车电机断电情况下的紧急机械解锁功能，可以实现驾驶员在驾驶室内实现手动机械解锁，不需要驾驶员下车操作；安全性能高和操作舒适性好。

Description

一种电子驻车的机械解锁机构 技术领域
本发明涉及驻车控制领域，具体涉及一种电子驻车的机械解锁机构。
发明背景
变速箱电子驻车机构是使汽车在路面上或坡道上停驻时，防止车辆滑行或向后溜车的机构。当前大多数新能源变速箱电子驻车机构的结构柔性不足，产品生命周期有限；且机械解锁机构布置在驻车电机的蜗杆处，在驻车电机失去电源后，这种解锁方式需要驾驶员在车底操作，才可以实施机械解锁，安全性低，舒适度差。
发明内容
鉴于上述问题，本发明提出了一种电子驻车的机械解锁机构，以便解决或者部分解决上述问题。
为达到上述目的，本发明的技术方案是这样实现的：
本发明提供一种电子驻车的机械解锁机构，所述机械解锁机构包括驻车凸轮组件、棘爪组件、拉杆组件和驻车齿轮；
所述驻车凸轮组件包括驻车导轴和驻车凸轮，所述驻车凸轮套设在所述驻车导轴上，在所述驻车凸轮的两侧至少设有第一凸起部和第二凸起部，在所述第二凸起部上设有连接部；
所述棘爪组件包括棘爪，所述棘爪组件一端与所述第一凸起部抵接；
所述拉杆组件通过所述连接部与所述驻车凸轮连接，所述拉杆组件牵拉所述第二凸起部，带动所述驻车凸轮旋转；
所述驻车齿轮，根据所述棘爪组件随着所述驻车凸轮的旋转分别处于与所述驻车齿轮驻入的第一位置和与所述驻车齿轮驻出的第二位置，所述驻车齿轮能够固定或旋转。
进一步地，所述连接部为槽，所述槽为通槽或盲槽，且所述槽的形状为弧形、圆形或多边形。
进一步地，所述拉杆组件包括连杆、销钉和挡圈；
所述连杆的一端通过所述销钉安装在所述槽内，所述销钉与所述连杆接触的外侧设有所述挡圈，用于固定所述销钉；
通过拉动所述连杆带动所述驻车凸轮旋转。
进一步地，所述拉杆组件还包括拉杆和密封圈；
所述拉杆安装在变速箱箱体通向外部的导向孔上，间隙配合，所述拉杆上与所述变速箱箱体间设有所述密封圈；所述拉杆一端通过所述销钉与所述连杆活动连接，所述销钉与所述连杆、所述拉杆接触的外侧设有所述挡圈，用于固定所述销钉。
进一步地，所述第一凸起部在周向上设置有弧形凸起，所述弧形凸起与所述棘爪组件接触，所述驻车凸轮组件还包括轴向限位块、驻车凸轮限位板、拨片弹簧；
所述驻车凸轮限位板固定在所述驻车导轴上，所述轴向限位块过盈套设在所述驻车导轴上，所述驻车凸轮套设在所述轴向限位块和驻车凸轮限位板之间的所述驻车导轴上，所述驻车凸轮限位板可带动所述驻车凸轮转动；
所述拨片弹簧提供机械解锁后的回位力以及驻入时的持续动力。
进一步地，所述棘爪组件还包括滚子、滚子销；
所述棘爪的末端设置有凹槽，所述滚子通过所述滚子销固定在所述凹槽内，所述滚子与所述第一凸起部抵接，所述棘爪下部设置有凸块可与所述驻车齿轮啮合。
进一步地，所述棘爪组件还包括棘爪转轴、扭簧，所述棘爪转轴设置在所述棘爪的一侧，所述棘爪可绕所述棘爪转轴旋摆；
所述棘爪的一侧套设在所述棘爪转轴上，所述棘爪转轴固定在变速箱的两侧箱体上，所述棘爪可绕所述棘爪转轴转动；所述扭簧的一端固定在变速箱箱体上，另一端固定在所述棘爪上，使得所述棘爪与所述驻车凸轮预压紧。
进一步地，所述机械解锁机构还包括防扭簧失效组件，所述防扭簧失效组件包括导向销和导向槽，所述导向销设置在所述棘爪的末端的导向部的端部所述导向槽设置在所述驻车凸轮和/或驻车凸轮限位板上，所述导向销伸入所述导向槽内。
采用上述电子驻车的机械解锁机构具有以下优点：
本发明中的机械解锁机构可提供驻车电机断电情况下的紧急机械解锁功能，驻车凸轮通过拉杆组件与驾驶室内的控制件连接，实现了驾驶员在驾驶室内就可以机械解锁；由于机械解锁机构可以实现纯机械、无电源动力下的驾驶室内解锁，不需要驾驶员下车操作，安全性能高和操作舒适性好；本发明的机械解锁机构通过设置防扭簧失效组件，在扭簧故障时，依然可以实现驻车解锁，并且在非驻车状态下可以有效防止棘爪掉入驻车齿轮槽内。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手 段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂，以下特举本发明的具体实施方式。
附图简要说明
图1示出了本发明一个实施例中电子驻车的机械解锁机构的结构示意图；
图2示出了本发明一个实施例中驻车凸轮与棘爪在驻车状态的结构示意图；
图3示出了本发明一个实施例中驻车凸轮与棘爪在机械解锁后的结构示意图。
图中附图标记含义如下：1、驻车齿轮，2、棘爪，3、棘爪转轴，4、扭簧，5、拉杆，6、销钉，7、连杆，8、挡圈，9、轴向限位块，10、驻车导轴，11、驻车凸轮限位板，12、拨片弹簧，13、驻车凸轮，14、滚子，15、滚子销。
实施本发明的方式
下面将参照附图更详细地描述本发明的示例性实施例。虽然附图中显示了本发明的示例性实施例，然而应当理解，可以以各种形式实现本发明而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本发明，并且能够将本发明的范围完整的传达给本领域的技术人员。
如图1所示，本发明提供一种电子驻车的机械解锁机构，该机械解锁机构包括驻车凸轮组件、棘爪组件、拉杆组件和驻车齿轮1。
具体地，驻车凸轮组件包括驻车导轴10和驻车凸轮13，驻车凸轮13套设在驻车导轴10上，在驻车凸轮13的两侧至少设有第一凸起部和第二凸起部，在第二凸起部上设有连接部；驻车导轴10一端为扁轴，另一端为圆轴，驻车导轴10贯穿变速箱箱体，驻车导轴10的扁轴端与驻车电机连接，驻车电机带动驻车导轴10转动。
棘爪组件包括棘爪2，棘爪组件一端与第一凸起部抵接。
拉杆组件通过连接部与驻车凸轮13连接，拉杆组件牵拉第二凸起部，带动驻车凸轮13旋转。
驻车齿轮1，根据棘爪组件随着驻车凸轮13的旋转分别处于与驻车齿轮1驻入的第一位置和与驻车齿轮1驻出的第二位置，驻车齿轮1能够固定或旋转。随着驻车凸轮13的旋转，第一凸起部的不同过位置与棘爪组件抵接，使棘爪组件处于与驻车齿轮1驻入的第一位置或与驻车齿轮1驻车的第二位置。
综上，本发明实施例中的机械解锁结构可以在驻车电机失去电源无法实现驻车解锁时，提供一种机械解锁方式，通过拉杆组件带动驻车凸轮13转动，使驻车棘爪组件和驻车齿轮1的位置关系由驻入的第一位置改变为驻出的第二位置，进而实现驻车的解锁。本实施例的机械解锁机构无需在车底进行机械解锁，并且本机械解锁机构操作简单，安全度高，舒适性好。
在一个实施例中，连接部为槽，槽为通槽或盲槽，且槽的形状为弧形、圆形或多边形。
在一个实施例中，如图2所示，拉杆组件包括连杆7、销钉6和挡圈8。
连杆7的一端通过销钉6安装在槽内，连杆7与驻车凸轮13活动连接，销钉6与连杆7接触的外侧设有挡圈8，用于固定销钉6。
通过拉动连杆7带动驻车凸轮13旋转。
在一个实施例中，拉杆组件还包括拉杆5和密封圈。
拉杆5安装在变速箱箱体通向外部的导向孔上，间隙配合，拉杆5上与变速箱箱体间设有密封圈；拉杆5一端通过销钉6与连杆7活动连接，销钉6与连杆7、拉杆5接触的外侧设有挡圈，用于固定销钉6。拉杆5的一端通过销钉6与连杆7活动连接，拉杆5的另一端通过整车拉线或整车拉杆连接在驾驶室内的控制件上；驾驶员在驾驶室内通过控制件拉动拉杆5，进而实现驻车凸轮13的旋转，实现机械解锁。
在一个实施例中，第一凸起部在周向上设置有弧形凸起，弧形凸起与棘爪组件接触。当弧形凸起与棘爪组件抵接时，棘爪组件被下压，与驻车齿轮1啮合，实现驻入，此时驻车凸轮13与棘爪2位置结构如图2；当弧形凸起以外的第一凸起部与棘爪组件抵接时，棘爪组件上扬，与驻车齿轮1分开，实现驻出，此时驻车凸轮13与棘爪2位置结构如图3。驻车凸轮组件还包括轴向限位块9、驻车凸轮限位板11、拨片弹簧12。
驻车凸轮限位板11固定在驻车导轴10上，轴向限位块9过盈套设在驻车导轴10上，驻车凸轮13套设在轴向限位块9和驻车凸轮限位板11之间的驻车导轴10上，驻车凸轮限位板11可带动驻车凸轮13转动。
拨片弹簧提供机械解锁后的回位力以及驻入时的持续动力。如图1所示，驻车凸轮限位板11至少包括间隔设置的第一叶片部和第二叶片部，第一叶片部和第二叶片部分别设置在驻车凸轮13第一凸起部的两侧，第一叶片部朝向第一凸起部的 一侧设有第一弹簧柱，第一凸起部上设置有对应的第二弹簧柱，第一弹簧柱和第二弹簧柱上套设有拨片弹簧12；第二叶片部形成有曲爪，曲爪与第一凸起部的另一侧抵接。
在一个实施例中，棘爪组件还包括滚子14、滚子销15。
具体的，棘爪2的末端设置有凹槽，滚子14通过滚子销15固定在凹槽内，滚子14与第一凸起部抵接，棘爪2下部设置有凸块可与驻车齿轮1啮合。其中，滚子14可沿滚子销15径向滚动，滚子14的设计是为了减少棘爪2上部与驻车凸轮13接合部的摩擦力和磨损，提高其使用寿命。
在一个实施例中，棘爪组件还包括棘爪转轴3、扭簧4，棘爪转轴3设置在棘爪2的一侧，棘爪2可绕棘爪转轴3旋摆。
棘爪2的一侧套设在棘爪转轴3上，棘爪转轴3固定在变速箱的两侧箱体上，棘爪2可绕棘爪转轴3转动；扭簧4的一端固定在变速箱箱体上，另一端固定在棘爪2上，使得棘爪2与驻车凸轮13预压紧。在扭簧4的作用下保证棘爪2始终抵接驻车凸轮13。
在一个实施例中，机械解锁机构还包括防扭簧失效组件，防扭簧失效组件包括导向销和导向槽，导向销设置在棘爪2的末端的导向部的端部导向槽设置在驻车凸轮13和/或驻车凸轮限位板11上，导向销伸入导向槽内，导向槽提供紧急解锁时使棘爪2抬起的导向作用。当扭簧4失效时，由于棘爪组件失去了扭簧4预紧力的作用，在驻车解锁时，无法使棘爪2下部设置有凸块与驻车齿轮1从啮合状态分离，进而无法实现驻车解锁。
本发明该实施例中通过导向销和导向槽的设计，可实现棘爪2与驻车凸轮13活动连接，即使扭簧4失效，由于驻车凸轮13的旋转，通过导向销带动棘爪2上抬，使棘爪2下部的凸块与驻车齿轮1分离，进而实现驻车解锁。在非驻车状态下，导向销贴在驻车凸轮13的导向槽底部，防止棘爪2掉入驻车齿轮1的齿槽内。本实施例中的防扭簧失效组件克服了因扭簧4等故障引起的无法正常解锁的问题。
综上，本发明提供一种电子驻车的机械解锁机构，机械解锁机构包括驻车凸轮组件、棘爪组件、拉杆组件和驻车齿轮；驻车凸轮组件包括驻车导轴和驻车凸轮，驻车凸轮套设在驻车导轴上，在驻车凸轮的两侧至少设有第一凸起部和第二凸起部，在第二凸起部上设有连接部；棘爪组件包括棘爪，棘爪组件一端与第一凸起部抵接；拉杆组件通过连接部与驻车凸轮连接，拉杆组件牵拉第二凸起部，带动驻车 凸轮旋转；驻车齿轮，根据棘爪组件随着驻车凸轮的旋转分别处于与驻车齿轮驻入的第一位置和与驻车齿轮驻出的第二位置，驻车齿轮能够固定或旋转。本发明提供的机械解锁机构提供了驻车电机断电情况下的紧急机械解锁功能，驻车凸轮通过拉杆组件与驾驶室内的控制件连接，可以实现驾驶员在驾驶室内实现机械解锁；该机械解锁机构可以实现纯机械、无电源动力下的驾驶室内手动解锁，不需要驾驶员下车操作；安全性能高和操作舒适性好。
以上仅为本发明的具体实施方式，在本发明的上述教导下，本领域技术人员可以在上述实施例的基础上进行其他的改进或变形。本领域技术人员应该明白，上述的具体描述只是更好的解释本发明的目的，本发明的保护范围应以权利要求的保护范围为准。

Claims (8)

  1. 一种电子驻车的机械解锁机构，其特征在于，所述机械解锁机构包括驻车凸轮组件、棘爪组件、拉杆组件和驻车齿轮；
    所述驻车凸轮组件包括驻车导轴和驻车凸轮，所述驻车凸轮套设在所述驻车导轴上，在所述驻车凸轮的两侧至少设有第一凸起部和第二凸起部，在所述第二凸起部上设有连接部；
    所述棘爪组件包括棘爪，所述棘爪组件一端与所述第一凸起部抵接；
    所述拉杆组件通过所述连接部与所述驻车凸轮连接，所述拉杆组件牵拉所述第二凸起部，带动所述驻车凸轮旋转；
    所述驻车齿轮，根据所述棘爪组件随着所述驻车凸轮的旋转分别处于与所述驻车齿轮驻入的第一位置和与所述驻车齿轮驻出的第二位置，所述驻车齿轮能够固定或旋转。
  2. 根据权利要求1所述的机械解锁机构，其特征在于，所述连接部为槽，所述槽为通槽或盲槽，且所述槽的形状为弧形、圆形或多边形。
  3. 根据权利要求2所述的机械解锁机构，其特征在于，所述拉杆组件包括连杆、销钉和挡圈；
    所述连杆的一端通过所述销钉安装在所述槽内，所述销钉与所述连杆接触的外侧设有所述挡圈，用于固定所述销钉；
    通过拉动所述连杆带动所述驻车凸轮旋转。
  4. 根据权利要求3所述的机械解锁机构，其特征在于，所述拉杆组件还包括拉杆和密封圈；
    所述拉杆安装在变速箱箱体通向外部的导向孔上，间隙配合，所述拉杆上与所述变速箱箱体间设有所述密封圈；所述拉杆一端通过所述销钉与所述连杆活动连接，所述销钉与所述连杆、所述拉杆接触的外侧设有所述挡圈，用于固定所述销钉。
  5. 根据权利要求1所述的机械解锁机构，其特征在于，所述第一凸起部在周向上设置有弧形凸起，所述弧形凸起与所述棘爪组件接触，所述驻车凸轮组件还包括轴向限位块、驻车凸轮限位板、拨片弹簧；
    所述驻车凸轮限位板固定在所述驻车导轴上，所述轴向限位块过盈套设在所述驻车导轴上，所述驻车凸轮套设在所述轴向限位块和驻车凸轮限位板之间的所述驻车导轴上，所述驻车凸轮限位板可带动所述驻车凸轮转动；
    所述拨片弹簧提供机械解锁后的回位力以及驻入时的持续动力。
  6. 根据权利要求1-4任一项所述的机械解锁机构，其特征在于，所述棘爪组件还包括滚子、滚子销；
    所述棘爪的末端设置有凹槽，所述滚子通过所述滚子销固定在所述凹槽内，所述滚子与所述第一凸起部抵接，所述棘爪下部设置有凸块可与所述驻车齿轮啮合。
  7. 根据权利要求1-4任一项所述的机械解锁机构，其特征在于，所述棘爪组件还包括棘爪转轴、扭簧，所述棘爪转轴设置在所述棘爪的一侧，所述棘爪可绕所述棘爪转轴旋摆；
    所述棘爪的一侧套设在所述棘爪转轴上，所述棘爪转轴固定在变速箱的两侧箱体上，所述棘爪可绕所述棘爪转轴转动；所述扭簧的一端固定在变速箱箱体上，另一端固定在所述棘爪上，使得所述棘爪与所述驻车凸轮预压紧。
  8. 根据权利要求7所述的机械解锁机构，其特征在于，所述机械解锁机构还包括防扭簧失效组件，所述防扭簧失效组件包括导向销和导向槽，所述导向销设置在所述棘爪的末端的导向部的端部所述导向槽设置在所述驻车凸轮和/或驻车凸轮限位板上，所述导向销伸入所述导向槽内。
PCT/CN2020/083762 2020-03-17 2020-04-08 一种电子驻车的机械解锁机构 WO2021184454A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/802,130 US11808351B2 (en) 2020-03-17 2020-04-08 Mechanical unlocking mechanism for electronic parking
EP20925824.3A EP4102110B1 (en) 2020-03-17 2020-04-08 Mechanical unlocking mechanism for electronic parking
JP2022556128A JP7277673B2 (ja) 2020-03-17 2020-04-08 電子パーキングの機械的ロック解除機構

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010186938.2 2020-03-17
CN202010186938.2A CN111237454A (zh) 2020-03-17 2020-03-17 一种电子驻车的机械解锁机构

Publications (1)

Publication Number Publication Date
WO2021184454A1 true WO2021184454A1 (zh) 2021-09-23

Family

ID=70877190

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/083762 WO2021184454A1 (zh) 2020-03-17 2020-04-08 一种电子驻车的机械解锁机构

Country Status (5)

Country Link
US (1) US11808351B2 (zh)
EP (1) EP4102110B1 (zh)
JP (1) JP7277673B2 (zh)
CN (1) CN111237454A (zh)
WO (1) WO2021184454A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110953341A (zh) * 2019-12-26 2020-04-03 精进电动科技股份有限公司 一种电子驻车机构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007681A1 (de) * 2007-02-16 2008-08-21 Audi Ag Vorrichtung und Verfahren zum Abstellen eines Fahrzeugs mit einem automatischen Getriebe
WO2011090614A2 (en) * 2009-12-30 2011-07-28 Borgwarner Inc. Stamped laminated stacks for parking pawl, parking gear and parking anchor
CN106439000A (zh) * 2016-11-28 2017-02-22 上海汽车变速器有限公司 电子驻车机械执行机构
CN206812976U (zh) * 2017-05-31 2017-12-29 东风汽车公司 用于驻车制动的锁止及解锁机构
CN107606146A (zh) * 2017-10-25 2018-01-19 上海伊控动力系统有限公司 一种变速器驻车操纵装置
CN108980344A (zh) * 2018-10-24 2018-12-11 赣州经纬科技股份有限公司 一种驻车机构和车辆
CN210034382U (zh) * 2019-05-29 2020-02-07 谷叶水 一种模块化驻车机构及手动驻车机构和电动驻车机构

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074513A (en) * 1959-07-07 1963-01-22 Chrysler Corp Sprag lock structure
US3714995A (en) 1970-09-04 1973-02-06 Vetco Offshore Ind Inc Motion compensating apparatus
US4369867A (en) * 1980-09-11 1983-01-25 Ford Motor Company Automatic transmission parking brake mechanism
US5170869A (en) * 1990-06-18 1992-12-15 Ford Motor Company Gear selector parking ratchet for automatic transmissions
JPH05322043A (ja) * 1992-05-21 1993-12-07 Mazda Motor Corp 自動変速機のパーキング構造
DE19837832A1 (de) * 1998-08-20 2000-02-24 Zahnradfabrik Friedrichshafen Parksperre für automatische Getriebe von Kraftfahrzeugen
JP5322043B2 (ja) 2005-08-15 2013-10-23 オイレス工業株式会社 ラックガイド及びこのラックガイドを具備したラックピニオン式ステアリング装置
KR20100053278A (ko) * 2008-11-12 2010-05-20 현대위아 주식회사 전기 자동차용 감속기 파킹장치
DE102009054874A1 (de) * 2009-12-17 2011-06-22 ZF Friedrichshafen AG, 88046 Parksperrenvorrichtung mit Notbetätigungsvorrichtung für ein Fahrzeuggetriebe
CN202659781U (zh) * 2012-06-29 2013-01-09 安徽星瑞齿轮传动有限公司 汽车变速器驻车制动装置
CN202691007U (zh) * 2012-08-01 2013-01-23 济南兰基新能源技术有限公司 一种用于电动汽车的驻车机构
US9145113B2 (en) * 2013-05-24 2015-09-29 GM Global Technology Operations LLC Transmission parking pawl actuation assembly
US20150308571A1 (en) * 2014-04-29 2015-10-29 Ford Global Technologies, Llc Parking override device for a shift-by-wire transmission
DE102017218748A1 (de) * 2017-10-19 2019-04-25 Zf Friedrichshafen Ag Parksperre für ein Automatgetriebe in einem Kraftfahrzeug
CN207762238U (zh) * 2017-12-29 2018-08-24 株洲欧格瑞传动股份有限公司 一种汽车变速器p挡驻车装置
CN108317247B (zh) * 2018-03-20 2024-04-30 株洲齿轮有限责任公司 驻车机构及汽车
CN108999969A (zh) * 2018-09-12 2018-12-14 无锡众联能创动力科技有限公司 一种配置有驻车机构的减速箱
CN210034381U (zh) * 2019-04-11 2020-02-07 广州汽车集团股份有限公司 驻车装置及变速器
CN110686077A (zh) 2019-10-29 2020-01-14 重庆青山工业有限责任公司 汽车变速器驻车机构
CN212177839U (zh) * 2020-03-17 2020-12-18 精进电动科技股份有限公司 一种电子驻车的机械解锁机构

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007681A1 (de) * 2007-02-16 2008-08-21 Audi Ag Vorrichtung und Verfahren zum Abstellen eines Fahrzeugs mit einem automatischen Getriebe
WO2011090614A2 (en) * 2009-12-30 2011-07-28 Borgwarner Inc. Stamped laminated stacks for parking pawl, parking gear and parking anchor
CN106439000A (zh) * 2016-11-28 2017-02-22 上海汽车变速器有限公司 电子驻车机械执行机构
CN206812976U (zh) * 2017-05-31 2017-12-29 东风汽车公司 用于驻车制动的锁止及解锁机构
CN107606146A (zh) * 2017-10-25 2018-01-19 上海伊控动力系统有限公司 一种变速器驻车操纵装置
CN108980344A (zh) * 2018-10-24 2018-12-11 赣州经纬科技股份有限公司 一种驻车机构和车辆
CN210034382U (zh) * 2019-05-29 2020-02-07 谷叶水 一种模块化驻车机构及手动驻车机构和电动驻车机构

Also Published As

Publication number Publication date
JP2023512329A (ja) 2023-03-24
EP4102110A4 (en) 2023-07-05
US20230076082A1 (en) 2023-03-09
CN111237454A (zh) 2020-06-05
EP4102110B1 (en) 2024-04-03
JP7277673B2 (ja) 2023-05-19
EP4102110A1 (en) 2022-12-14
US11808351B2 (en) 2023-11-07

Similar Documents

Publication Publication Date Title
WO2021184455A1 (zh) 一种电子驻车的机械解锁机构
CN102639806B (zh) 带保险连接器的上/下车设备的驱动装置
WO2021128494A1 (zh) 一种电子驻车机构
CN204627264U (zh) 车门电动推杆
EP3279523B1 (en) Actuation unit for controlling the angular position of a control member, particularly for a vehicle transmission
CN1550629A (zh) 锁机构
US5662542A (en) Actuating drive having a spring return feature
CN108930789B (zh) 一种简易电子式驻车机构
WO2021184454A1 (zh) 一种电子驻车的机械解锁机构
CN107859740B (zh) P挡驻车机构和车辆
CN208530537U (zh) 一种电动车减速器驻车制动机构
CN212177839U (zh) 一种电子驻车的机械解锁机构
US20230167898A1 (en) Differential lock and parking structure for dual power source driving speed reducer
CN211778936U (zh) 一种电子驻车机构
CN212429705U (zh) 一种电子驻车的机械解锁机构
CN209799656U (zh) 一种人员闸门联锁机构
CN209972427U (zh) 一种车辆电子驻车制动动力装置及车辆电子驻车制动系统
CN211313746U (zh) 上锁组件
CN116374016B (zh) 单向锁止执行器及其锁止方法
CN219493027U (zh) 一种驻车执行器
CN219954192U (zh) 一种驻车装置
CN112128370A (zh) 一种减速器驻车机构及车辆
CN217271848U (zh) 驻车机构及车辆
CN215760964U (zh) 一种电机锁体实现常态机械开锁的中心轴
US11772947B1 (en) Jacking machine and control method thereof

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20925824

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022556128

Country of ref document: JP

Kind code of ref document: A

Ref document number: 2020925824

Country of ref document: EP

Effective date: 20220908

NENP Non-entry into the national phase

Ref country code: DE