KR20150037201A - Parking System and Control Method For Vehicle - Google Patents

Abstract

The present invention relates to a vehicle parking system comprising: a plurality of sensors to sense vehicles parked in a parking space; a communication part to receive information sensed by the plurality of sensors and information on the number of rotation of a wheel in accordance with a gear and/or a steering angle; and a control part to store the information transmitted to or received from the communication part. The control part is rolled back when trouble with a vehicle is sensed in accordance with the received information.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a parking system,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a parking system of a vehicle and a control method thereof, and more particularly, to a parking system and a control method thereof for a vehicle capable of changing a parking time and a traveling time of the vehicle.

In recent years, the vehicle has many functions. An airbag for the safety of the driver, and a sensor for maintaining the safety distance. In rear parking, sensors are installed to prevent collision with the rear vehicle and the driver is assisted. However, when the driver feels the most burden when driving the vehicle, he / she feels a great deal of burden about parking the vehicle. Recently, a system for automatically parking has been actively researched.

For example, the Smart Parking Assist System is a system to assist the parking by controlling the steering wheel by searching the available parking area using the space search ultrasonic sensor mounted on the front, rear, left, and right sides of the vehicle . At this time, the driver only operates the gear shift, acceleration, and stop.

In addition, the Park Distance Control functions as a rear-view camera that displays the turning radius of the vehicle, and eight sensors that are built into the front and rear bumper of the vehicle recognize the distance from the object. System.

However, referring to FIG. 1, when entering the vehicle in the R1 direction when the vehicle is attempting to park the vehicle in the T-shaped parking of the vehicle 1, collision (2) may occur between the front door and the rear door of the vehicle do. At this time, the driver has a problem that the collision (2) portion is more distorted due to the fact that the driver moves forward and backward when the driver attempts to park again stably as in the R2 direction after leaving the same situation as the R1 direction.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a parking system and a control method thereof for reducing secondary damage using data values input in advance in a collision situation occurring when a vehicle collides.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a parking system of a vehicle according to an embodiment of the present invention includes a plurality of sensors for recognizing whether or not there is a vehicle being parked in a parking space, and a plurality of sensors for detecting data on the gears and / And a control unit for storing information transmitted and received by the communication unit.

The details of other embodiments are included in the detailed description and drawings.

According to the parking system of the present invention and its control method, one or more of the following effects can be obtained.

In case of another problem in low-speed collision, or in case of returning to the previous position of the driving process, it is possible to reduce the secondary damage by using the rollback function of the vehicle, thereby improving the convenience to the driver.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
2 is a plan view showing a parking time of a vehicle according to the present invention,
3 is a diagram illustrating one embodiment of a RollBack Transaction,
4 is a flowchart showing a control method of a parking system of a vehicle according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining a vehicle parking system and a control method thereof according to embodiments of the present invention.

Fig. 2 is a plan view showing a parking time of a vehicle according to the present invention, Fig. 3 is a chart showing an embodiment of a rollback transaction, Fig. Fig. 5 is a flowchart showing a control method of a parking system of a vehicle according to a first embodiment of the present invention; Fig.

A preferred vehicle parking system can be changed by a person having ordinary skill in the art, and in the embodiment of the present invention is a parking system of a vehicle and a control method thereof.

2 is a plan view showing a parking time of a vehicle according to the present invention.

2, a communication unit receives a plurality of sensors for recognizing whether there is a vehicle being parked in a parking space, information about wheel rotation speeds according to information measured by the plurality of sensors, gears and / or steering angles, And a control unit for storing information transmitted and received by the communication unit, wherein the control unit is rolled back when recognizing the problem of the vehicle according to the received information. RollBack is a feature that allows a user to return to a state before a process is executed if a user makes a mistake or performs an unintended process.

A plurality of sensors (not shown) are provided as ultrasonic sensors to recognize whether there is a vehicle in the vicinity of the vehicle, and transmit the recognized vehicle to the control unit. In one embodiment, the plurality of sensors are installed on the front, rear, and side surfaces of the vehicle, so that the control unit, which will be described later, repeatedly recognizes whether there is a vehicle being parked in the parking space and transmits it to the communication unit. In addition, a plurality of sensors are operated in association with a camera sensor or the like installed in the vehicle.

A communication unit (not shown) is installed at the center of the vehicle and receives information on the measured values from the plurality of sensors and information on the number of rotations of the wheels according to the gear and / or steering angle through wireless communication. The information received by the communication unit is transmitted to the control unit 10, and the control unit 10 calculates and processes the information. Such a communication unit transmits data using Bluetooth and / or Zigbee and CAN (Control Area Network) communication, and not only this kind of wireless communication but also information measured from a plurality of sensors through wired communication Can be transmitted.

The control unit 10 stores information transmitted and received by the communication unit. At this time, the control unit 10 transmits the information of the steering angle of the vehicle to the communication unit. In one embodiment, the steering angle is measured by a steering angle sensor, and the information senses the rotational angle, direction, and rotational speed of the driver with respect to the steering wheel, and transmits information about the magnitude and direction of the required auxiliary power to the communication unit. The steering angle is the number of revolutions of the wheel when the gear and steering angle are maintained.

When the gear position is changed at the time of low-speed traveling and / or when an error occurs at a steering angle of more than +/- 1 DEG, the control unit 10 records new running information every time the range is changed within the error range. At this time, the control unit 10 records only the latest driving information. In other words, new information due to error is referred to as recent information, and if the information before error occurs is referred to as previous information, the previous information is deleted or the latest information is overwritten on the previous information, Only. The information stored in the control unit 10 is transmitted to the ACU at the time of collision and the vehicle is rolled back to the position of the recently stored information.

The ACU (Auto Control Unit) receives the information from the control unit and returns the vehicle to the latest information position according to the rollback driving process.

Figure 3 is a chart illustrating one embodiment of a RollBack Transaction.

Referring to FIG. 3, when five running processes are recorded in the order of the running transactions, the running process of returning to the initial state of R2 is started from the last process to the first process And vice versa. In one embodiment, if the vehicle is traveling in the traveling transaction state (D) -> forward (D) -> reverse (R) -> forward (D) -> reverse (R) To a rollback transaction, in which the order of the running transactions is reversed. That is, the state of the rollback transaction is operated as reverse (R) -> forward (D) -> reverse (R) -> forward (D) -> forward (D).

A control method of the parking system of the vehicle according to the present invention will be described below.

4 is a flowchart showing a control method of a parking system of a vehicle according to the present invention.

4, when the vehicle is automatically parked using a plurality of sensors, or when the driver is parked, the vehicle is rolled back to the state of the latest information before and immediately before the collision, that is, before stopping, at the request of the driver .

When the vehicle is running at a low speed, the information is collected by the gear box, the steering angle sensor, and the wheel sensor. The collected information is transmitted to the communication unit, and the communication unit transmits and receives the information to the control unit (S1).

First, information transmitted from the communication unit is stored in the control unit. Such transmission is stored in the control unit when the gear position is changed at the time of low-speed driving of the vehicle and / or when an error occurs at a steering angle of more than +/- 1 DEG.

The controller compares the current information with the information immediately before the collision, and compares the currently stored information with the current state data to adjust the steering angle and / or the wheel speed to set the ACU (Auto Control Unit (S2).

Based on the information transmitted from the control unit, the ACU rolls back the recently stored information and data in the reverse order in which they are stored, and automatically travels the vehicle according to the traveling process and returns to the position before the collision (S3). At this time, the driver notifies the driver of the gear and operates the driver.

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 should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

<Detailed Description of Main Drawings>
1: vehicle 2: collision point
10:

Claims (3)

A plurality of sensors installed in a vehicle;
A communication unit for receiving data measured by the plurality of sensors and information on wheel rpm according to gear and / or steering angle; And
And a controller for storing information transmitted and received by the communication unit,
Wherein,
A parking system of a vehicle that is rolled back upon recognition of a problem of the vehicle according to the received information.
A first step in which a plurality of sensors are installed in a vehicle to collect information;
A second step of transmitting the information recognized in the first step from the communication unit to the control unit and storing the information; And
And a third step of comparing the recently stored information recognized in the second step with the current state data to be rolled back to the state of the recently stored information.
3. The method of claim 2,
In the third step,
And controlling the steering angle and / or the number of rotations of the wheel by comparing the information stored in the controller with the data stored in the current state to locate the vehicle in the state of the recently stored information.

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