KR101295007B1 - Shift lever assembly for automatic transmission of vehicle - Google Patents

Abstract

PURPOSE: A shift lever assembly of an automatic transmission for vehicles is provided to reduce a space in which is occupied in a driver's seat by having one null position and to easily operate a transmission pattern. CONSTITUTION: A shift lever assembly of an automatic transmission for vehicles comprises a shift lever (10), a first rotator (11), a second rotator (12), a first detent pin (31), a second detent pin (32), and a solenoid valve assembly (40). The first rotator rotates according to the operation of the shift lever when changing the speed in a shaft direction. The second rotator rotates according to the operation of the shift lever when changing the speed in a select direction. The first detent pin is guided to elastically retreat with respect to a first groove (21) according to the rotation of the first rotator and is arranged in a first stable position of the null position in the shaft direction. The second detent pin is guided to elastically retreat with respect to a second groove according to the rotation of the second rotator and is arranged in a second stable position of the null position. The solenoid valve assembly includes a first solenoid valve, a second solenoid valve (44), and a solenoid valve control unit. The first solenoid valve prohibits the first rotator from rotating in a first predetermined transmission mode. The second solenoid valve prohibits the second rotator from rotating in a second predetermined transmission mode.

Description

Shift Lever Assembly for Automatic Transmission of Vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever assembly of an automatic transmission for a vehicle, and more particularly, to a shift lever assembly having less space occupied by a shift lever in a driver's seat and a short operating stroke.

A shift lever assembly capable of operating a shift mode is provided in a driver's seat of a vehicle on which an automatic transmission is mounted, and a straight line, a gate type, a H type, and the like are used as a shift pattern of the shift lever for operating the automatic shift mode. In the straight type, the path in which the shift lever moves to select the shift mode is a single straight line. In the gate type, the shift path has a zigzag pattern to prevent unintended operation.

On the other hand, even in the case of employing an automatic transmission, there is an increasing number of vehicles that have a manual transmission stage that allows the driver to select a shift stage manually, and a predetermined null position after selecting a shift mode by operating the shift lever. Shift lever assemblies have also emerged that return to (Null Position).

For example, Korean Patent Application Publication No. 10-2007-0005054 published on January 10, 2007 discloses a shift lever assembly for an automatic transmission that returns to a predetermined null position after a shift mode selection. However, such a prior art has a disadvantage in that the wrist is excessive due to shifting left and right.

The object of the present invention is to provide a shift lever assembly for an automatic transmission, which has one null position and also has various shift patterns, unlike the prior art.

The shift lever assembly according to the present invention comprises (1) a shift lever, (2) a first rotating body that rotates according to the operation of the shift lever when shifting in the shift direction, and (3) the shift when shifting in the select direction. A second rotating body that rotates according to the operation of the lever, (4) a first groove having a first stable position, and (5) elastically moving back and forth from the first groove according to the rotation of the first rotating body. A first detent pin guided and disposed in the first stable position at a null position in the shift direction, (6) a second groove having a second stable position, and (7) of the second rotating body A second detent pin elastically retractable from the second groove in accordance with rotation and disposed at the second stable position in the null position; and (8) the first rotating body in a predetermined first shift mode. The first solenoid valve which can be prevented from rotating, and (9 A second solenoid valve capable of prohibiting rotation of the second rotating body in a predetermined second shift mode, (10) a solenoid valve control unit controlling the first solenoid valve and the second solenoid valve, and (11) the first A first detection unit that detects a shift direction shift mode according to the rotation of the first rotating body, (12) a second detection unit that detects the select direction shift mode according to the rotation of the second rotating body, and (13) the first detection unit And a shift mode determination unit that determines a shift mode based on the shift mode detected by the second detection unit.

The shift mode in the shift direction may include a reverse stage, a first neutral stage, a second neutral stage, and a travel stage, and the shift mode in the select direction may include a travel stage and a manual shift stage.

According to a preferred embodiment of the present invention, the first neutral end is adjacent to the reverse end, and the second neutral end is configured to be adjacent to the driving end.

The shift mode determination section maintains the shift mode immediately before the shift lever returns to the null position at the null position.

It is preferable that the shift direction and the select direction are perpendicular to each other.

The shift mode determining unit, when the shift lever is shifted to the manual shift stage in the select direction and returns to a null position, when the first detecting means detects the shift to the first neutral stage, the gear shift upward and downward of the current gear stage. When the shift to the gear stage of the gear stage is determined and the first detecting means detects the shift to the second neutral stage, the gear shift to the other gear stage among the up and down gear stages of the current gear stage is determined. Determine.

The first rotating body is provided with a first slot, a second slot, and a third slot, wherein the first solenoid valve is a 1-1 solenoid valve capable of advancing and retracting a first rod into the first slot, and the first slot. And a 1-2 solenoid valve capable of advancing and retracting the second rod through two slots, and a 1-3 solenoid valve capable of advancing and retracting the third rod into the third slot.

The first rod is inserted in the first slot to prohibit the shift lever operation to the next adjacent end in the shift direction, and the second rod is inserted into the second slot to operate the shift lever in the rear shift direction. And the third rod is inserted into the third slot to prohibit the shift lever operation in the forward shift direction.

The first neutral stage and the second neutral stage may allow the shift mode determining unit to recognize the same neutral stage when the manual shift stage is not selected.

According to the present invention, the shift lever assembly for the automatic transmission having one null position is provided, thereby reducing the space occupied in the driver's seat and providing the shift lever assembly with a simple shift pattern.

1 is an exploded perspective view of a shift lever assembly according to the present invention.
2 is an internal cross-sectional view of the shift lever assembly according to the present invention in a shift direction.
3 is a partial cross-sectional view in a shift direction in which a detection sensor is displayed.
4 is an internal cross-sectional view of the shift lever assembly according to the present invention in a select direction;
5 is a view showing a shift pattern according to an embodiment of the present invention.
6 is a view showing a shift pattern according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of a shift lever assembly according to the present invention. As shown in FIG. 1, the shift lever assembly according to the present invention includes a shift lever 10, a first rotating body 11, and a first rotating body 11. The two rotating bodies 12, the solenoid valve assembly 40, the circuit board 26, the circuit board cover 25, and the housing 20 are included. The lower end of the shift lever 10 is accommodated in the second rotating body 12, and the second rotating body 12 rotates when the shift lever 10 is operated in the select direction. At the top of the shift lever 10, a button 3 for setting the parking mode P is provided, and an unlock button (not shown) for releasing the shift lock is provided. When the unlock button is pressed in the shift lock state, the solenoid valve described later is operated to release the shift lock state.

As used herein, the term "shift direction" refers to a direction in which a predetermined shift stage may be selected by operating the shift lever in a forward and backward direction with respect to the driver, and the "select direction" refers to the driver. It means the direction which can select a predetermined speed change stage by operating a shift lever in a left-right direction as a reference. The shift direction and the select direction are preferably orthogonal to each other as described later.

In the present specification, the term "null position" refers to a position where the user automatically returns after the shift lever 10 moves for shifting operation even without a separate operation force.

The front of the vehicle is to the right of the shift direction indicated in FIG. 2, the left side is defined as the rear of the vehicle, and the left side of the select direction of FIG. 4 is the driver's direction (based on the vehicle seated on the left side of the vehicle), The right side is defined as the passenger seat direction.

The first rotating body 11 is provided with a space 13 for accommodating a part of the second rotating body 12, and the first slot 111 to the third slot below the first rotating body 11. 113 is provided. When the shift lever 10 is operated in the shift direction, the first rotating body 11 rotates accordingly, and rotates about the rotating shaft 15. Both ends of the rotating shaft 15 are accommodated by the rotating shaft cover 14.

As shown in FIG. 2, the first rotating body 11 is provided such that the first detent pin 31 is elastically retractable with respect to the first groove 21. The first spring 32 is provided such that the first detent pin 31 is elastically retractably guided. The first groove 21 is provided with a first stable position 210, which is referred to herein as a "stable position", after the detent pin is guided along the groove and moved to a predetermined position. When the operating force with respect to the removal of the detent pin is defined as a return position, as will be described later means the position of the detent pin when the shift lever 10 is in the null position (Null Position).

As shown in the internal sectional view seen in the select direction of FIG. 4, the second detent pin 32 is guided elastically with respect to the second groove 22 in accordance with the rotation of the second rotating body 12. Is provided. The second spring 33 is provided to guide the second detent pin 32 elastically retractable. The second groove 22 is provided with a second stable position 220. The second detent pin 32 is guided along the second groove 22 to move to a predetermined position and then to the shift lever 10. When the operating force is removed, the second detent pin 32 returns to the second stable position 220. When the shift lever 10 is operated in the select direction and shifted to return to the null position, the second detent pin 32 is disposed at the second stable position 220.

The solenoid valve assembly 40 includes a first solenoid valve capable of prohibiting rotation of the first rotating body 11 in a predetermined first shift mode, and a rotation of the second rotating body 12 in a predetermined second shift mode. It includes a second solenoid valve 44 and a solenoid valve control unit (not shown) that can be prohibited. The solenoid valve control unit may be embedded in the solenoid valve assembly 40, or may be provided in another position. The rod is provided in the first solenoid valve and the second solenoid valve 44 so as to be retractable to be inserted into the first slot 111 to the third slot 113 of the first rotating body 11 to control the shift lock.

The first solenoid valve includes a first-first solenoid valve 41 that controls the first rod 411 that can retract with respect to the first slot 111, and a second rod 422 that can retract with respect to the second slot 112. ) And a 1-2 solenoid valve 42 for controlling), and a 1-3 solenoid valve 43 for controlling the third rod 433 capable of moving forward and backward with respect to the third slot 113.

The first rod 411 and the second rod 422 protrude from the first-first solenoid valve 41 and the first-two solenoid valve 42 when the power is “off”, and thus, the first slot 111 is formed. And the second solenoid valve 43, which is inserted into the second and second slots 112, the first rod 433 is inserted inward when the power is turned off, and is not caught in the third slot 113. Has a status. Like the 1-3 solenoid valve 43, the second solenoid valve 44 also maintains a state in which the fourth rod 444 is inserted inward and not caught by the locking groove 114 when the power is "off". .

The shift lock in the shift direction can be controlled according to whether the first rods 411 to 343 433 are inserted into the first slots 111 to the third slot 113. For example, in order to apply the shift lock so as to shift only to the adjacent car end, only the first rod 411 is inserted into the first slot 111, and the shift is performed to the adjacent end in the forward shift direction but adjacent to the down shift direction. In order to apply the shift lock so as not to shift, only the first rod 411 and the second rod 422 are inserted into the first slot 111 and the second slot 112. That is, when the first rod 411 is inserted into the first slot 111, the shift is possible only up to an adjacent shift stage in the shift direction. When the second rod 422 is inserted into the second slot 112, the shift lever 10 is shifted. ) Is prohibited from being operated backward, and when the third rod 433 is inserted into the third slot 113, the shift lever 10 is prohibited from being operated forward.

2 and 3, the average skilled person may easily implement a shift lock by appropriately controlling protrusion and retraction of the first rods 411 to 343 433.

The first rotating body 11 is provided with a magnet bracket 92 which rotates together in accordance with the rotation of the first rotating body 11, which rotates about the rotating shaft 94. The rotating shaft 94 is provided with a magnet, and the rotary hall sensor 80 is disposed on the opposite side thereof to detect the degree to which the magnet of the rotating shaft 94 is rotated by the rotation of the first rotating body 11 to thereby detect the first rotating body. By detecting the rotation of (11), the shift mode in the shift direction can be detected.

The second rotating body 12 is provided with a ball member 60 moving in the vertical direction of FIG. 4 in accordance with the rotation of the second rotating body 12. The ball member 60 is received in the guide portion 52 of the select lever 50, and the select lever 50 has an end portion relative to the shaft 51 as the ball member 60 moves in the guide portion 52. 55; see FIG. 3). A magnet is provided at the end 55, and a plurality of Hall sensor switches 71, 72, 73 are provided at positions facing the end 55 so as to detect the mode in the select direction.

A locking groove 114 (see FIG. 4) is provided at a lower portion of the second rotating body 12, and the rod 444 of the second solenoid valve 44 is controlled to be able to move forward and backward in the locking groove 114 in the select direction. A shift lock on the shift lever 10 is made possible.

The second rotating body 12 is accommodated in the space 13 of the first rotating body 11 and provided to be rotatable about the rotating shaft 70. When operating the shift lever 10 in the select direction, the second rotating body 12 is provided to be rotatable about the rotating shaft 70 in the space 13 of the first rotating body 11.

When the first rotating body 11 rotates by operating the shift lever 10 in the shift direction, the second rotating body 12 moves along the first rotating body 11, but the second groove 22 shifts. When the shift lever 10 is operated in the direction, a guide groove is formed in which the second detent pin 32 can move accordingly.

Further, when the rotary hall sensor 80 or the hall sensor switches 71, 72, and 73 detect that the shift lever of the shift lever assembly according to the present invention is operated in the shift direction or the select direction to change the shift mode, the signal is output. A shift mode determining unit (not shown) is further provided for determining the shift mode according to a predetermined control algorithm which is received in advance. The shift mode determining unit may be provided to the ECU of the vehicle or may be provided as a separate control unit to communicate with the ECU. Determining the shift mode by the shift mode determiner is a content that can be easily designed by a person skilled in the art according to the technical idea of the present invention will not be described in detail.

A first embodiment of a shift pattern of a shift lever assembly according to the present invention is shown in FIG. As shown in Fig. 5, the shift direction includes R (reverse end)-Nr (first neutral end)-Null (null position)-Nd (second neutral end)-D (driving end). It consists of D (traveling stage) -M (manual transmission stage) in the direction. The first neutral stage Nr and the second neutral stage Nd function as the same neutral gear stage.

The shift direction and the select direction are orthogonal to each other. The shift lever 10 is operated in either direction in the shift direction or the select direction to return to the null position even when the shift mode is selected. This is because the first detent pin 31 and the second detent pin 32 described above return to the first stable position 210 and the second stable position 220 and are thus connected to the shift lever 10. This is because the rotating body 11 and the second rotating body 12 return to the null position. The determination of the parking mode P is made by pressing the button 3 provided to the shift lever 10.

The position of the driving stage D and the manual transmission stage M in the null position may be reversed. In the null position, the shift mode immediately before it is maintained.

When the shift lever 10 returns to the null position after shifting to the manual shift stage M, when the shift lever 10 is operated to the first neutral stage Nr, this is the up gear of the current gear stage in the shift mode determining unit. If it is determined that the gear is manually shifted to the gear stage, and is operated by the second neutral stage Nd, it is determined that the gear is manually shifted to the down gear stage of the current gear stage from the shift mode determining unit. The up gear stage and the down gear stage may be interchanged.

6 is a shift pattern according to another embodiment of the present invention. The difference from FIG. 5 is that the shift mode can be selected only in one direction in the select direction. In other words, when pushing or pulling in one direction of the select direction, the shift is determined in one of the driving stage (D) and the manual shifting stage (M), and when pushing or pulling in the same direction, the shift is determined in the other mode. . Also in this embodiment, when it is the manual shift stage M, the shift to the up or down gear stage of the current gear stage is performed by the shift direction manipulation to the first neutral stage Nr and the second neutral stage Nd.

Next, the operation of the shift lever assembly according to the present invention will be described. The operation described below, in particular, the shift lock may be applied differently according to the shift mode policy, and the description below should be understood in an illustrative and non-limiting sense.

When starting in the parking mode (P) state, the initial state is that the shift lever 10 is located in the null position, the brake lock is released in this state by pressing the unlock button to release the shift lock is possible. The inventor of the present invention exemplarily designed the shift lock for the shift lever assembly according to the present invention as shown in the following table.

<Example table of shift lock>

The shift lock specified in each current shift mode can be implemented by appropriately controlling the first solenoid valve and the second solenoid valve as described above.

In the shift pattern according to the present invention, when the driving stage D is selected and the shift lever 10 is in the null position, for example, when the shift lever 10 is operated in the right select direction, the shift to the manual shift stage M is performed. do. However, after shifting to the manual shift stage M, as described above, the second detent pin 32 returns to the second stable position 220 of the second groove 22, so that the shift lever 10 Immediately returns to the null position. The selection direction operation of the shift lever 10 is detected by the switch hall sensors 71, 72, and 73 and the shift mode is determined by the manual shift stage M. The shift lever 10 is shifted in the shift direction at the null position. When operating to the adjacent stage, the shift mode determination unit determines the manual shift to the up or down gear stage of the current gear stage to perform the shift. In other words, the first neutral stage Nr and the second neutral stage Nd function as +/- mode indications in the manual shift mode. Even if manual shift is performed to the first neutral end Nr and the second neutral end Nd, the shift lever 10 returns to the null position.

To change the shift mode from the manual shift stage M to the driving stage D, the shift lever 10 is pulled to the left in the select direction at the null position. The shift lever 10 moved in the select direction returns to the null position immediately after the shift mode determination to the driving stage D is made.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the scope of the present invention is not limited to the above-described embodiments and / or drawings. It is to be expressly understood that improvements, changes and modifications that are obvious to those skilled in the art are also within the scope of the present invention as set forth in the claims.

10: shift lever
11: first rotating body
12: second rotating body
21: first groove
22: second groove
31: first detent pin
32: second detent pin
40: solenoid valve assembly

Claims (8)

With a shift lever,
A first rotating body that rotates in accordance with the operation of the shift lever when shifting in the shift direction,
A second rotating body rotating according to the operation of the shift lever when shifting in the select direction,
A first groove having a first stable position,
A first detent pin which is elastically guided in the first groove in accordance with the rotation of the first rotating body and is disposed at the first stable position at a null position in the shift direction;
A second groove having a second stable position,
A second detent pin guided resiliently in the second groove according to the rotation of the second rotating body and disposed at the second stable position in the null position;
A first solenoid valve capable of prohibiting rotation of the first rotating body in the first predetermined shift mode;
A second solenoid valve capable of prohibiting rotation of the second rotating body in the predetermined second shift mode;
A solenoid valve control unit for controlling the first solenoid valve and the second solenoid valve;
A first detecting unit detecting a shift direction shift mode according to the rotation of the first rotating body;
A second detecting unit detecting a select direction shift mode according to the rotation of the second rotating body;
And a shift mode determining unit configured to determine a shift mode based on the shift mode detected by the first detection unit and the second detection unit.
Shift lever assembly of an automatic transmission for a vehicle.
The method according to claim 1,
The shift mode in the shift direction includes a reverse stage, a first neutral stage, a second neutral stage, and a driving stage,
The shift mode in the select direction includes a driving stage and a manual shift stage,
Shift lever assembly of an automatic transmission for a vehicle.
The method according to claim 2,
The first neutral end is adjacent to the reverse end, and the second neutral end is adjacent to the running end,
Shift lever assembly of an automatic transmission for a vehicle.
The method according to claim 3,
The shift mode determination unit maintains the shift mode immediately before the shift lever returns to the null position at the null position,
Shift lever assembly of an automatic transmission for a vehicle.
The method according to any one of claims 1 to 4,
The shift direction and the select direction are directions perpendicular to each other,
Shift lever assembly of an automatic transmission for a vehicle.
The method according to any one of claims 2 to 4,
The shift mode determination unit,
When the shift lever shifts to the manual shift stage in the select direction and returns to the null position, when the first detecting means detects the shift to the first neutral stage, one of the up and down gear stages of the current gear stage is detected. Determining the shift to the gear stage, and when the first detecting means detects the shift to the second neutral stage, determining the shift to the other gear stage of the up and down gear stages of the current gear stage,
Shift lever assembly of an automatic transmission for a vehicle.
The method according to any one of claims 1 to 4,
The first rotating body is provided with a first slot, a second slot, and a third slot,
The first solenoid valve may include a first-first solenoid valve capable of advancing and retracting a first rod into the first slot, a 1-2 second solenoid valve capable of advancing and retracting a second rod into the second slot, and the third slot. A third solenoid valve capable of advancing and retracting the third rod,
The first rod is inserted into the first slot to prohibit the shift lever operation from being adjacent to the vehicle in the shift direction;
The second rod is inserted into the second slot to prohibit the shift lever operation in the rear shift direction,
The third rod is inserted into the third slot to prohibit the shift lever operation in the forward shift direction,
Shift lever assembly of an automatic transmission for a vehicle.
The method of claim 6,
If the first neutral stage and the second neutral stage is not selected, the shift mode determination unit recognizes the same neutral stage,
Shift lever assembly of an automatic transmission for a vehicle.

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