Transmission lever having n range shift lock

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shift lever system having an N-

The present invention relates to a shift lever system having an N-stage shift lock function for restricting a shift from a D-stage or an N-stage to a P-stage in a shift from a P-stage to a P-stage.

In the conventional automatic transmission vehicle, the P, R, N, and D shift stages are generally linearly arranged, and the shift lever is pivoted to select any one of a plurality of shift stages. When the shift lever is rotated, And transmitted to the transmission.

In particular, the shift to the P shift position must be performed in a state in which the vehicle is completely stopped at the time of shifting to the P shift position, and the conventional shift lever can be shifted to the P shift position without fully stopping the vehicle. In other words, when shifting to the P-shift stage, the shift lever is moved to the P-shift stage by pressing a separate parking button. When the driver is inadvertently traveling to the D-shift stage, There may be a problem of performing the shift immediately.

In this way, when the vehicle is directly shifted from the D gear stage to the P gear stage, the vehicle is shifted from the fully stopped state to the P gear stage, thereby causing a problem that the parking gear and the speed reducer case of the mechanism for parking the vehicle are damaged.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

<p><patcit num="0001"><text>Korean Patent Publication No. 10-2005-0022378 A (2005.03.08)</text></patcit></p>

<p>SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a shift lever system having an N-stage shift lock function for preventing damage to a parking mechanism operated during P- The purpose is to provide.</p><p></p>

<p>According to an aspect of the present invention, there is provided a shift lever system having an N-stage shift lock function, including: a lever housing having a shift lever rotatably installed to select a specific shift position among P, R, N, An inging lever provided so as to be moved integrally with the shift lever and having a latching portion for the D-stage, the N-stage and the P-stage; And a latching mechanism provided in the lever housing so as to correspond to the latching portion and operable to allow or restrict rotation of the elevating lever between the P-stage and the N-stage.</p><p>The engaging portion of the eninging lever includes a first engaging groove formed to be engaged with the engaging mechanism so as to extend in the rotational direction of the shift lever between the D-stage and the N-stage; A planar portion corresponding to the R-end and formed in a plane so as to prevent the latching mechanism from being caught; And a second latching groove corresponding to the P-stage and formed with a recessed engagement with the latching mechanism.</p><p>The locking mechanism is composed of a solenoid having a locking pin which is pulled out toward the locking lever or in the opposite direction. When the locking pin is pulled out and caught by the locking part, rotation of the locking lever is restricted.</p><p>The lever housing further includes a case formed with a through hole at a position corresponding to the engaging portion of the energizing lever, the engaging mechanism being fixed to the lever housing and coupled with the solenoid, wherein the engaging pin of the solenoid is inserted through the through hole And is pulled out toward the engaging lever.</p><p>The engaging lever is provided with a moving pin that is moved up and down in conjunction with a button provided on the shift lever. A latching space is formed in the lever housing to move the moving pin. The latching space is provided at a specific one of P, R, N, The movement of the moving pin is limited.</p><p>The engaging space of the lever housing has a first engaging end where the shift pin is positioned when the shift lever is in the D-stage or N-stage selection; When the shift lever is selected in the R-stage, the shifting pin is positioned and the second latching end is relatively more protruded than the first latching end; A third latching end in which the shift pin is positioned when the shift lever is selected in the P-stage; And a latching jaw positioned between the second and third latching ends and relatively more protruding than the second latching end.</p><p>And the shift pin of the shift lever is installed so as to be elastically supported by a spring.</p><p>The control unit is configured to control the operation of the latching mechanism in response to an operation signal of the brake pedal. When an operation signal of the brake pedal is generated, the control unit controls the engaging lever So as to allow rotation of the rotor.</p><p>The control unit is further configured to receive an operation signal of a button provided on the shift lever and to control the operation of the engagement mechanism. When the operation signal of the brake pedal and the operation signal of the button are generated together, And controls the operation.</p><p>The control unit is further configured to receive the vehicle speed information and to control the operation of the latching mechanism and to control the operation of the latching mechanism so that rotation of the engaging lever is permitted when the vehicle speed is equal to or lower than a preset speed, .</p><p></p>

<p>According to the shift lever system having the N-stage shift lock function having the above-described structure, when the shift from the D-stage to the P-stage is performed, the rotation of the shift lever is restricted in the N-th stage, When the permissible condition is satisfied, the shift lever is rotated and shifted to the P-stage, thereby preventing the parking mechanism from being damaged during P-shift due to the driver's carelessness.</p><p></p>

1 is a view of a shift lever system having an N-stage shift lock function according to an embodiment of the present invention. FIG. 2 is a view showing a lever housing of the shift lever system having the N-stage shift lock function shown in FIG. 1; 3 is a view showing an elevating lever of the shift lever system having the N-stage shift lock function shown in FIG. 1; 4 is a view showing the engagement mechanism of the shift lever system having the N-stage shift lock function shown in FIG. 5 is a view for explaining a shift lever system having the N-stage shift lock function shown in FIG. 1;

Hereinafter, a shift lever system having an N-shift lock function according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a view showing a shift lever system having an N-stage shift lock function according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the lever housing of the shift lever system having the N- FIG. 3 is a view showing an elevating lever of the shift lever system having the N-stage shift lock function shown in FIG. 1, and FIG. 4 is a view showing a shift lever of the shift lever system having the N-stage shift lock function shown in FIG. FIG. 5 is a view for explaining a shift lever system having the N-stage shift lock function shown in FIG. 1. FIG.

1, a shift lever system having an N-stage shift lock function according to the present invention includes a shift lever 10 for selecting a specific shift position among P, R, N, A housing (100); An energizing lever 200 installed to be moved integrally with the shift lever 10 and having a latching portion 220 formed on the D-stage, the N-stage and the P-stage; And an engagement mechanism 300 that is provided in the lever housing 100 in correspondence with the engagement portion 220 and operates to allow or restrict rotation of the engagement lever 200 between the P-end and the N-end.

The present invention can be applied to a shift device in which P, R, N, and D stages are linearly arranged so that shifting is performed when the shift lever 10 is operated in the forward and backward directions. However, in the shift structure in which the shift lever 10 is linearly operated in the forward and backward directions, the shifting can be performed from the D-stage to the P-stage at once by erroneous operation of the driver. There is a possibility that the components constituting the parking mechanism may be damaged due to the operation of the parking mechanism.

In order to solve such a problem, the present invention is provided with a shift lever 10 mounted on a lever housing 100 so as to be rotated together with an elevating lever 200. In particular, the elevating lever 200 is provided with a D- The latching unit 220 is formed with respect to the P stage and the lever housing 100 is provided with the latching mechanism 300 provided corresponding to the latching unit 220 so that the latching mechanism 300 is engaged with the N- The rotation of the lever 200 is restricted so that the shift lever 10 is not rotated.

That is, when the shift lever 10 is positioned at the D-end and the shift lever 10 is shifted directly toward the P-end due to carelessness of the driver, the engagement mechanism 300 is engaged with the engagement lever 200 The rotation of the engaging lever 200 is restricted. Therefore, when the shift lever 10 is directly moved from the D-stage to the N-stage, the movement of the shift lever 10 together with the inging lever 200 is restricted so that the components of the parking mechanism It is not damaged. In addition, since the engagement mechanism 300 performs the shift lock function in the shift from the P stage to the other shift stage, when the engagement mechanism 300 provided for performing the shift lock function is used, It is possible to perform a control for restricting the shift.

Hereinafter, the present invention will be described in detail.

3, the eningding lever 200 includes a rotary part 200a hinged to be rotatable in the lever housing 100 and coupled with the shift lever 10, and a rotary part 200a coupled to the rotary part 200a, And a connecting end portion 200b having a locking portion 220 formed therein. That is, the energizing lever 200 is rotatably installed by being hinged to the lever housing 100, so that the engaging lever 200 is rotated in conjunction with the operation of the shift lever 10 coupled to the rotating portion 200a of the energizing lever 200 Can be. The rotary part 200a may be provided with a moving pin 14 mounted on the shift lever 10 and the moving pin 14 may be installed so as to be elastically supported by a spring 16. In this case, the movable pin 14 can be moved up and down in association with the button 12 provided on the shift lever 10, and can be moved in the engaging space 140 of the lever housing 100 to be described later. In the case of the button 12, the shift lever 10 may be provided with a shift knob coupled to the shift lever 10. The shift lever 10 is usually provided with a knob and a button 12 is provided on the knob. Are omitted.

In addition, a fan-shaped connection end 200b may be formed in the rotation part 200a of the energizing lever 200, and the engagement part 220 may be formed in the connection end 200b. That is, the engaging portion 220 is formed in the fan-shaped connecting end portion 200b which should be formed to extend in the rotating direction of the shift lever 10, A detent structure 20 for imparting a sense of operation can be applied.

The engaging portion 220 of the energizing lever 200 includes a first engaging groove 222 extending in the rotational direction of the shift lever 10 between the D and N stages and engaging with the engaging mechanism 300 ); A planar portion 224 corresponding to the R-stage and formed in a plane so as to prevent the latching mechanism 300 from being caught; And a second latching groove 226 corresponding to the P-stage and formed to be engaged with the latching mechanism 300.

3, the engaging portion 220 of the energizing lever 200 includes a first engaging groove 222 corresponding to the D-stage and N-stage, a flat portion 224 corresponding to the R-stage, P And the first engaging groove 222, the planar portion 224 and the second engaging groove 226 can be sequentially positioned with respect to the rotational direction of the shift lever . In the case of the first latching groove 222, the shift lever can be moved in the D-stage and N-stages even if the latching mechanism 300 is engaged with the first latching groove 222 by being formed as a groove so that the D- have. When shifting from the D-stage to the P-stage, however, the engagement mechanism 300 is restricted by the engagement of the first engagement groove 222 and the engagement of the engagement mechanism 300 with the first engagement groove 222 So that the shifting to the P-stage can be performed through the operation of the shift lever 10 when the rotation of the ening lever 200 is permitted. As a result, the shift from the D-stage directly to the P-stage is restricted.

On the other hand, the shifting mechanism 300 is engaged with the second engaging groove 226 in the shifting state from the P-stage to the other shifting end and the shift lock state is maintained. By the operation of the engaging mechanism 300, So that the shifting of the shifting lever 200 to the other speed change stage can be performed through the operation of the shift lever 10.

Since the planar portion 224 corresponding to the R-stage is formed so as to be flush with the end surface of the engaging lever 200, the engagement mechanism 300 prevents the rotation of the ening lever 200 from being restricted at the R- The shift lever 10 can be moved from the N-th stage to the P-stage or from the P-stage to the N-stage. That is, when the rotation of the inging lever 200 is restrained by the engaging mechanism 300 at the R-end during the operation of the shift lever 10, it can be moved backward differently from the intention of the driver, The flat surface portion 224 is formed.

4, the latching mechanism 300 is constituted by a solenoid having a latching pin 320 which is drawn toward or opposite to the extending lever 200, and the latching pin 320, The rotation of the elevating lever 200 can be restrained. That is, the latching mechanism 300 is configured as a solenoid in which the latching pin 320 as a plunger is pulled out or pulled in the opposite direction, and in a state in which the latching pin 320 is drawn out so as to be caught by the latching portion 220 And may be configured such that the latching pin 320 is retracted and released from the latching portion 220 under certain circumstances. Here, the latching mechanism 300 can be controlled by the control of the control unit described later, and can be electrically connected through the connector and the electric wire.

2 and 5, a through hole 120 is formed in the lever housing 100 at a position corresponding to the retaining portion 220 of the energizing lever 200, and the retaining mechanism 300 The solenoid includes a case 340 fixed to the lever housing 100 and having a solenoid coupled thereto and the engaging pin 320 of the solenoid is drawn out through the through hole 120 toward the engaging lever 200 .

The engaging mechanism 300 is coupled to the lever housing 100 through the case 340 which is installed to cover the through hole 120 of the lever housing 100 and the engaging pin 320 of the engaging mechanism 300, Is drawn through the through hole (120) toward the energizing lever (200) so as to be caught by the engaging portion (220). In this manner, the penetrating hole 120 is formed in the lever housing 100 and the latching mechanism 300 is provided through the case 340 so that the engaging lever 200 and the latching mechanism 300 are interfered with each other in the lever housing 100 And the engaging pin 220 of the engaging mechanism 300 is engaged with the engaging part 220 formed on the engaging lever 200. [

The shifting lever 200 is provided with the shifting pin 14 which is moved upward and downward by interlocking with the button 12 provided on the shift lever 10 and the shifting pin 14 is moved to the lever housing 100 The space 140 may be formed and the engaging space 140 may be formed to restrict the movement of the moving pin 14 at a specific gear position among the P, R, N, and D stages.

The engaging space 140 of the lever housing 100 includes a first engaging end 142 at which the shift pin 10 is positioned at the D-step or N-th step, at which the shift pin 14 is positioned; A second engaging end 144, on which the shift pin 14 is positioned when the shift lever 10 is selected in the R-step, and which is more protruded than the first engaging end 142; A third latching end 146 in which the shift pin 10 is positioned at the P-stage selection position of the shift pin 14; And a latching jaw 148 positioned between the second latching end 144 and the third latching end 146 and protruding from the second latching end 144 relatively more.

2, the engaging space 140 of the lever housing 100 includes a first engaging end 142, a second engaging end 144, a third engaging end 146, And the moving pin 14 provided on the energizing lever 200 moves in the engaging space 140 in accordance with the movement of the shift lever 10 so that the first engaging end 142, the second engaging end 144, And is positioned at any one of the engaging ends 146. Here, the button 12 provided on the shift lever 10 may be provided in the shift knob, and the moving pin 14 is elastically supported by the spring 16 so that the first, So that the contacted state can be maintained.

When the shift lever 10 is in the D-stage or N-stage, the shift pin 14 is positioned at the first latching end 142. In the case of the first latching end 142, the D- The shifting operation can be performed without depressing the button 12 when the shift lever 10 is operated from the D-stage to the N-stage or from the N-stage to the D-stage. However, the shifting is performed only when the button 12 is depressed in the shift from the D-stage or N-stage to the R-stage or P-stage. To this end, the second latching end 144 corresponding to the R-end is formed to be more protruded than the first latching end 142 to separate the first latching end 142 from the second latching end 144, The third latching end 146 corresponding to the P stage is separated from the second latching end 144 by the latching protrusion 148 which is more protruded than the second latching end 144. [

The shift lever 10 can be shifted in the D-stage or N-stage when the shift lever 10 is shifted without pressing the button 12 at the first engagement stage 142, and the shift button 12 The shifting pin 14 is moved in the engaging space 140 so that the shifting lever 10 can be rotated, thereby preventing shifting and erroneous operation.

4, a control unit 400 for controlling whether or not the latch mechanism 300 is operated. Here, the controller 400 is configured to control the operation of the latch mechanism 300 by receiving the operation signal of the brake pedal. When the operation signal of the brake pedal is generated, the controller 400 controls the operation of the engaging lever 200 Rotation can be allowed.

In this way, the latching mechanism 300 is operated by the control unit 400, and the control unit 400 controls the latching mechanism 300 to operate only when the operation signal of the brake pedal is generated, Or restraint.

Specifically, when the shift lever 10 is in the D-stage and the shift lever 10 is operated in the P-stage due to the driver's carelessness, the shift mechanism 10 can be operated only up to the N-th stage Shift is allowed. That is, as the engagement mechanism 300 is engaged with the engagement portion 220 of the engagement lever 200, the movement of the shift lever 10 is restricted. Thus, when the operation signal of the brake pedal is input to the control unit 400 when the brake pedal is operated, the engagement mechanism 300 is operated to be disengaged from the engagement portion 220 As the brake pedal is activated, shifting to the P-stage can be performed only when the vehicle is stationary.

The controller 400 is further configured to receive an operation signal of the button 12 provided on the shift lever 10 and to control the operation of the latch mechanism 300. The operation signal of the brake pedal and the operation of the button 12 The operation of the latch mechanism 300 can be controlled so that rotation of the energizing lever 200 is permitted when signals are generated together.

The control unit 400 is further configured to receive the vehicle speed information and to control the operation of the engagement mechanism 300. When the operation speed of the brake pedal and the operation signal of the button 12 and the vehicle speed are equal to or lower than predetermined speeds, The operation of the latch mechanism 300 can be controlled so that the rotation of the lever 200 is permitted.

The control unit 400 receives the operation signal of the brake pedal and the vehicle speed information of the button 12 provided in the shift lever 10 in addition to the operation signal of the brake pedal and receives the operation signal of the brake pedal and the operation The operation of the latch mechanism 300 can be controlled such that rotation of the engaging lever 200 is permitted when both the signal and the vehicle speed satisfy the set speed or less.

That is, as the engagement mechanism 300 is engaged with the engagement portion 220 of the engagement lever 200, the shift from the N-th stage to the P-th stage is restricted. To allow this, the brake pedal is operated, When the operation signal of the button 12 provided in the shift lever 10 is inputted, it is determined whether or not the shift to the P-stage is performed by the driver's intention and whether the vehicle is stopped due to the vehicle speed being less than the set speed If you do not,

The control unit 400 receives information from the brake pedal detection sensor, the operation detection sensor of the shift lever 10 button 12, and the vehicle speed sensor, receives the operation signals of the brake pedal, When the vehicle speed is equal to or lower than the set speed, the engagement mechanism 300 is controlled so as to be released from the engagement portion 220 so that the vehicle can be shifted from the stopped state to the P-state.

According to the shift lever 10 system having the N-stage shift lock function having the above-described structure, when the shift from the D-stage to the P-stage is performed, the rotation of the shift lever 10 is restricted in the N-stage, The shift lever 10 is rotated and shifted to the P-stage when the shift to the P-stage is permitted, thereby preventing the parking mechanism from being damaged during the P-shift due to the driver's carelessness.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: lever housing 120: through hole 140: latching space 142: first latching end 144: second stopping stage 146: third stopping stage 148: Retaining jaw 200: Engaging lever 220: engaging portion 222: first engaging groove 224: flat portion 226: second engaging groove 300: Retaining mechanism 320: Retaining pin 340: Case 400: