KR101915295B1 - Automatically secure parking method of vehicle - Google Patents

Abstract

The present invention relates to an automatic secure parking method of a vehicle which is able to automatically recognize a state of a transmission gear shift (TGS) lever for a vehicle in accordance with a vehicle condition, and is able to realize safe parking of the vehicle based thereon, comprising: a step of checking the state of the TGS lever when an engine is off by checking a start state of the vehicle in a vehicle control unit (VCU); a step of checking a door state if the position of the TGS lever is not in a P range; and a step of performing operation in the P range by automatically entering a parking mode if the door is opened. Accordingly, even if a driver moves out of the vehicle by opening the door while the TGS lever is not in the P range, the vehicle can automatically enter the parking mode to allow parking, thereby promoting safety.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to an automatic safety parking method for a vehicle, and more particularly, to an automatic safety parking method for a vehicle which automatically recognizes a state of a TGS (Transmission Gear Shift) lever for a vehicle according to a vehicle condition, The present invention relates to an automatic safe parking method for a vehicle.

Generally, a parking apparatus of a vehicle includes a shift lever (TGS lever), a manual control lever, a detent lever, a parking rod, a parking cam, a parking sprag, Parking sprag is a structure in which a parking gear is fixed using a parking sprag, a parking gear, a detent spring, and a return spring.

For example, a vehicle equipped with an automatic transmission is an apparatus in which a transmission speed and a rotational force transmitted from an engine are changed so that the action of a transmission transmitting to a drive wheel is automatically performed by a shift pattern. An oil pressure control mechanism, and an electronic control device.

A vehicle equipped with an automatic transmission rotates the detent lever as the manual control lever of the transmission rotates. The detent lever is provided with a latching groove, and the parking rod moves along the latching groove. When the manual control lever is moved to the position of P, the parking rod advances as far as possible. When the parking rod pushes up behind the parking sprocket, the parking sprocket adjacent to the parking sprocket is caught by the teeth of the parking gear The parking of the vehicle is achieved by suppressing the rotation of the parking gear.

Conventionally proposed techniques for parking a vehicle equipped with an automatic transmission are disclosed in Patent Documents 1 to 3 below.

In the conventional technology disclosed in Patent Document 1, a key switch for detecting a key switching state and a signal inputted from a key switch are analyzed to delay a motor off operation during key off of the vehicle for a set time, And the hydraulic pressure through the valve body operated in accordance with the driving of the external oil pump operates the 5-speed synchro so as to release the hydraulic pressure in the state where the rotation of the 5th gear is fixed And a shift control portion that mechanically performs a control operation to fix the rotation of the fifth gear. With this configuration, the weight saving of the parking apparatus of the hybrid vehicle having the double clutch transmission including the motor and the electric oil pump is achieved.

In addition, in the conventional technology disclosed in Patent Document 2, a driver is connected to an automatic transmission manual control lever which can select a speed change stage, and the vehicle is restrained by the operation of a detent lever rotated according to the operation of the manual control lever The parking sprocket rod is moved forward and backward. A locking hole is formed at the front end of the parking sprocket rod. The locking sprocket is selectively inserted into a plurality of locking holes formed in the circumferential direction along the outer circumferential surface of the circular parking gear Thereby preventing the vehicle from flowing.

The prior art disclosed in Patent Document 3 is composed of a first transfer gear composed of a first transfer drive gear and a first transfer driven gear, a second transfer drive gear and a second transfer driven gear, and the first transfer gear, An output shaft on which the first transfer driven gear and the second transfer driven gear are seated by a bearing, a first synchro hub spline-coupled to the output shaft and having a first synchro sleeve, a second synchro hub which moves the first synchro sleeve A first shift fork, a second synchro hub spline coupled to the output shaft and having a second synchro sleeve, and a second shift fork for moving the second synchro sleeve, wherein the force acting at the P-stage is the circumferential direction of rotation of the shaft, So as to minimize the noise that can be generated when the vehicle is released by the back plate, There is no advantage for the operator is required to spend excessive force.

Korean Unexamined Patent Application Publication No. 10-2006-0001079 (published on Jan. 11, 2006) (Parking Device of Hybrid Vehicle) Korean Patent Laid-Open No. 10-2007-0045584 (published on May 2, 2007) (parking apparatus of an automatic transmission vehicle) Korean Patent Laid-Open No. 10-2008-0054724 (Published Jun. 19, 2008) (Parking System of Vehicle with Automatic Transmission)

However, the parking system of the conventional automatic transmission as described above and the conventional technology have an advantage in that when the driver puts the shift lever in the P range, he enters the parking mode and can safely park the vehicle. However, when the driver puts the shift lever in the " RND " There is a disadvantage in that it is impossible to automatically implement the safe parking in accordance with the vehicle condition, thereby causing a vehicle accident.

In the conventional technology disclosed in Patent Document 1, the parking apparatus in the hybrid electric vehicle is forced to change the TGS lever to the parking range (P Range) in the same manner as the conventional automatic transmission (A / T) It is possible to implement parking, but it is impossible to implement safety parking by moving the shift lever to the parking range automatically based on the vehicle condition.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve all the problems occurring in the related art as described above, and it is an object of the present invention to automatically recognize a state of a TGS (Transmission Gear Shift) lever for an automobile according to a vehicle condition, And an object of the present invention is to provide an automatic safe parking method of a vehicle which realizes a safe parking method.

In order to achieve the above object, an automatic safety parking method for a vehicle according to the present invention comprises the steps of: (a) checking a starting state of a vehicle to check a state of a shift lever (TGS Lever) in a starting " off " (b) checking the door state if the shift lever position is not in the " P " range as a result of the checking in the step (a); (c) if the door is opened as a result of the checking in the step (b), automatically enters the parking mode and operates in the " P " range.

The automatic safety parking method of a vehicle according to the present invention further comprises the steps of: (d) checking whether a shift mode is selected within a predetermined time after the step (c), and if the shift mode is not operated within the predetermined time, And a step of operating the parking brake to perform automatic parking.

(E) checking the starting state of the vehicle to check the state of the shift lever (TGS Lever) and the door state in the starting " on " state, and And entering the corresponding shift mode to perform the corresponding mode.

According to the present invention, it is possible to automatically recognize the state of a TGS (Transmission Gear Shift) lever for a vehicle according to a vehicle condition, automatically implement a safe parking of the vehicle based on the condition, It is possible to operate the electronic parking brake EPB automatically for safety.

1 is a system configuration diagram to which an automatic safety parking method for a vehicle according to the present invention is applied;
2 is a flowchart showing an automatic safe parking method of a vehicle according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automatic safe parking method of a vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of an automotive system to which an automatic safety parking method for a vehicle according to a preferred embodiment of the present invention is applied.

The vehicle system to which the present invention is applied includes a cluster 10 for visually displaying shift information, a shift lever (TGS Lever) 20 for providing shift information, a vehicle such as a vehicle start information and a door open / The vehicle system 40 for providing the information and the starting information provided from the vehicle system 40 to confirm the shift information through the shift lever 20 when the engine is in the starting " The door open / open information provided from the vehicle system 40 is checked. If the door open information is door open information, the door open / close information is automatically entered into the parking mode. , A vehicle control unit (VCU) 30 for controlling the parking operation if there is no shift operation within a predetermined time (for example, 10 minutes), an electronic parking brake And a reducer 50 for operating the EPB to perform a parking state.

The automobile system to which the present invention is applied preferably includes a " P " parking-off switch for releasing the automatic safety parking function of the vehicle although not shown in the drawings.

2 is a flowchart showing an automatic safety parking method of a vehicle according to the present invention, which includes the steps of: (a) confirming a state of a shift lever (TGS Lever) in a starting " (b) confirming a door state (S107, S108) if the shift lever position is not a " P " range as a result of the checking in the step (a) (S110) to (S111); (d) if the shift mode is selected within a predetermined time period after the step (c) (S112 to S114) of performing automatic parking by operating an electronic parking brake (EPB) when the shift mode is not operated within the predetermined time, (e) checking the starting state of the vehicle, "Check the status of the shift lever (TGS Lever) and the door condition at the time of state, (S101 to S105) of entering the shift mode corresponding to the state of one shift lever and performing the corresponding mode.

The step (a) includes checking the start-up state of the vehicle to check the state of the " P " parking-off switch in the starting " And when the " P " parking-off switch is in the " OFF " state, the state of the shift lever (TGS Lever) is confirmed.

The automatic safety parking method of the vehicle according to the present invention will be described in detail as follows.

First, when the driving power is supplied, the vehicle control unit 30 checks the starting state of the vehicle in cooperation with the vehicle system 40 in step S101. If it is determined that the vehicle is in the ON state, the process proceeds to step S102, where the position of the shift lever (TGS Lever) 20 is confirmed. Next, after confirming the state of the shift lever 20, the process proceeds to step S103, where the state of the door is confirmed through the vehicle system 40. [

If it is determined that the door is in the open or closed state, the process proceeds to step S104 to enter the shift mode corresponding to the checked state of the shift lever. Subsequently, in step S105, the vehicle is controlled to perform the operation corresponding to the entered shift mode.

In accordance with this shift mode, vehicle control is an operation that is commonly performed when the vehicle is started " on " in a vehicle equipped with a general automatic transmission.

A feature of the present invention is that the parking is automatically controlled according to the state of the shift lever and the state of the vehicle when the starting of the vehicle is turned off to secure safety.

For example, if it is determined in step S101 that the vehicle is in the starting " off " state, the flow advances to step S106 to check the state of the " P " parking- The safety parking is finished. On the other hand, if the " P " parking off switch is in the " off " state, the position of the shift lever (TGS Lever) is confirmed. Here, the reason for checking the state of the " P " parking-off switch in the starting " off " state is to allow the vehicle parked normally in the parking line to move while parked. That is, when the driver desires the " N " mode when parking the vehicle, the " P " parking mode is turned off so that the vehicle can be moved as needed due to double parking.

Then, in step S107, it is determined whether the shift lever position is the " P " range. If the shift lever is in the " P " range, the automatic parking control process is terminated and the process returns to the beginning.

On the other hand, if the position of the shift lever is not in the range of " P ", the process goes to steps S108 and S109 to check the door state. As a result of checking the door state, if the door is closed, it returns to the initial state. Otherwise, if the door is opened, the system goes to step S110 for safe parking and automatically enters the parking mode.

In the state where the vehicle enters the parking mode, the shift lever is operated in the " P " range as in step S111 to ensure safety.

In a state in which the shift lever is operated in the " P " range to secure the primary safety, the process proceeds to steps S112 and S114 and checks whether the shift mode operates within a predetermined fixed time (e.g., 10 minutes). If the shift mode is operated within a predetermined time, the driver returns to the initial stage because the driver is normally operating the vehicle. Otherwise, if the shift mode is not operated within the preset predetermined time, the process proceeds to step S113, (EPB) is operated to perform automatic parking.

Thus, even when the driver does not place the shift lever in the " P " range but opens the door and moves out of the vehicle, safety is achieved by automatically entering the parking mode and parking the vehicle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is obvious to those who have.

10: Cluster 20: Shift lever (TGS Lever)
30: vehicle control unit (VCU) 40: vehicle system
50: Reducer

Claims (5)

delete delete delete delete CLAIMS 1. A method for automatically and safely parking a vehicle,
(a) The state of the " P " parking-off switch provided for checking the starting state of the vehicle in the vehicle control unit (VCU) and releasing the automatic safety parking function of the vehicle in the starting " If the " P " parking off switch is in the " OFF " state, the state of the shift lever (TGS Lever) is confirmed step;
(b) checking the door state if the shift lever position is not in the " P " range as a result of the checking in the step (a);
(c) entering the parking mode and operating in the " P " range when the door is opened as a result of the checking in the step (b);
(d) checking whether the shift mode is selected within a predetermined time after the step (c), and if the shift mode does not operate within the predetermined time, the electronic parking brake EPB is automatically operated to perform automatic parking The method comprising the steps of:

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