KR20120053313A - Sensor module for sensing something of vehicles and control method of vehicles using the sensor module - Google Patents

Sensor module for sensing something of vehicles and control method of vehicles using the sensor module Download PDF

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Publication number
KR20120053313A
KR20120053313A KR1020100114525A KR20100114525A KR20120053313A KR 20120053313 A KR20120053313 A KR 20120053313A KR 1020100114525 A KR1020100114525 A KR 1020100114525A KR 20100114525 A KR20100114525 A KR 20100114525A KR 20120053313 A KR20120053313 A KR 20120053313A
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KR
South Korea
Prior art keywords
sensor
vehicle
sensing
area
sensing area
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KR1020100114525A
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Korean (ko)
Inventor
권양우
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현대모비스 주식회사
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Priority to KR1020100114525A priority Critical patent/KR20120053313A/en
Publication of KR20120053313A publication Critical patent/KR20120053313A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/0153—Passenger detection systems using field detection presence sensors
    • B60R21/01536—Passenger detection systems using field detection presence sensors using ultrasonic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60W2420/54—Audio sensitive means, e.g. ultrasound

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Traffic Control Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

The present invention relates to an object detecting sensor module of a vehicle and a method of controlling the vehicle using the same. In particular, an object (obstacle) close to the vehicle when the vehicle is driven by appropriately disposing two ultrasonic sensors so as to have a plurality of sensing areas. It can effectively detect and prevent vehicle contact accidents.

Description

Sensor module for sensing something of vehicles and control method of vehicles using the sensor module

The present invention relates to an object detecting sensor module of a vehicle and a method of controlling the vehicle using the same. In particular, an object (obstacle) close to the vehicle when the vehicle is driven by appropriately disposing two ultrasonic sensors so as to have a plurality of sensing areas. An object detecting sensor module of a vehicle capable of effectively detecting a vehicle contact accident and a control method of the vehicle using the same.

In general, the vehicle is equipped with an object detection sensor module that prevents contact accidents during the slow motion, and can more effectively warn when entering or reversing to a place where the driver's view is not secured.

The object detection sensor module prevents contact accidents of a vehicle by detecting an object lying in a blind spot from the driver's view in various ways and then warning the driver.

Recently, as part of the object detecting sensor module, an ultrasonic sensor that oscillates ultrasonic waves and the ultrasonic waves that are oscillated hits an obstacle and is reflected and received again has been introduced.

However, the object detection sensor module of the vehicle according to the prior art has a single sensing area on at least one of the left and right sides of the front part or the rear part of the vehicle and detects only when there is an obstacle in the part corresponding to the sensing area, thereby limiting the detection. Since only the distance value of the obstacle in the area can be known, if the detection area of the single ultrasonic sensor is wide, there is a problem in which the obstacle is avoided when moving the vehicle. There is a frequent problem of contact accidents.

The present invention has been made in order to solve the above technical problem, it is possible to avoid obstacles more effectively by classifying the presence or absence of obstacles by classifying at least three or more detection areas by an object detection sensor module having at least two sensors. An object of the present invention is to provide an object detecting sensor module of a vehicle and a method of controlling the vehicle using the same.

An object detecting sensor module of a vehicle according to the present invention includes a first sensor that transmits an ultrasonic wave of a first frequency, and recognizes that an object exists in the first sensing area when the transmitted ultrasonic wave is reflected and received. And a second sensor capable of transmitting an ultrasonic wave having a second frequency different from the first sensor, and recognizing that an object exists in a second sensing area when the transmitted ultrasonic wave is reflected by the object and received. And a controller for amplifying the signal sensed by the second sensor, and a controller for interpreting the signal amplified by the single amplifier to control the operation of the plurality of operation units of the vehicle according to the presence or absence of an object. The first sensor and the second sensor are disposed on the front side of the vehicle, and are modularized to form a third sensing region in which the first sensing region and the second sensing region overlap with each other. It is to be joined to its features.

Here, the first sensor, the second sensor and the single amplifier may be modularized to be disposed in front of the vehicle to form a single sensor module.

In addition, the first sensor is in charge of the object detection area of the front side of the vehicle, the second sensor is in charge of the object detection area of the side of the vehicle, the third overlapping of the first sensor and the second sensor The sensing area is configured to correspond to a middle portion of the first sensing area and the second sensing area.

In addition, when the first sensor and the second sensor simultaneously detects an object and sends a predetermined detection signal, the controller determines that an object exists at a predetermined position in the third sensing area to control the plurality of operation units. If only one of the first sensor and the second sensor detects an object and transmits a predetermined detection signal, the object exists at a predetermined position in the corresponding sensing area of the first sensing area or the second sensing area. It is determined that the control unit can control the plurality of operation units.

On the other hand, the control method of the vehicle using the object detection sensor of the vehicle according to the present invention, the first sensor for transmitting and receiving the ultrasonic wave of the first frequency to detect the object in the front first detection area of the vehicle and the second side of the vehicle An amplifying step of amplifying a detection signal transmitted from each sensor of a second sensor that transmits and receives an ultrasonic wave of a second frequency to detect an object in the detection area by using a single amplifier, and receives the signal amplified by the amplifier. An object for determining whether an object is located in the first sensing area or the second sensing area and in an overlapping area (third sensing area) of the first sensing area and the second sensing area; When the position of the object is determined by the position determining step and the object position determining step, the degree to which the object is positioned in the first to third sensing areas. According to the configuration is configured to include an operation unit operation control step for controlling the operation of the various operation unit of the vehicle differently.

The object detecting sensor module of the vehicle and the control method of the vehicle using the same according to the present invention have an advantage of realizing more accurate obstacle detection by securing a plurality of detection areas capable of detecting obstacles by two sensors.

In addition, the object detection sensor module and the control method of the vehicle using the same according to the present invention, since the integrated control through one printed circuit board, one amplifier and one control unit for each sensor can reduce the manufacturing cost of the sensor module There are also cost advantages.

In addition, the object detection sensor module and the control method of the vehicle using the same according to the present invention, there is an advantage that can prevent contact accidents even when the vehicle moves relatively fast because more accurate obstacle detection.

1 is a conceptual diagram showing an embodiment of an object detection sensor module of a vehicle according to the present invention,
2 is a conceptual diagram showing the utilization of the object detection sensor module of the vehicle according to the present invention,
3 is a lock-up table that simply displays the operation of the object detection sensor module of the vehicle according to the present invention,
4 is a block diagram illustrating a control method of a vehicle using the object detection sensor module of the vehicle according to the present invention.

Hereinafter, a preferred embodiment of an object detecting sensor module of a vehicle and a control method of a vehicle using the same according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram showing a preferred embodiment of the object detection sensor module of the vehicle according to the present invention, Figure 2 is a conceptual diagram showing the utilization of the object detection sensor module of the vehicle according to the present invention.

As shown in FIG. 1, the object detecting sensor module 10 of the vehicle according to the present invention transmits ultrasonic waves of a first frequency, and when the transmitted ultrasonic waves are reflected by an object and received, the first sensing region 25. A first sensor 20 capable of recognizing that an object exists in the body, and an ultrasonic wave having a second frequency different from that of the first sensor 20; and transmitting the ultrasonic wave reflected by the object to the second sensor. It includes a second sensor 30 that can recognize that an object is present in the area 35.

The first sensor 20 and the second sensor 30 are kinds of ultrasonic sensors, and transmit ultrasonic waves of a predetermined frequency so as to detect an object in a sensing area of a predetermined region, and the transmitted ultrasonic waves hit an object (obstacle). In case of returning from the reflected light, it calculates the distance from variables such as the time taken to return the received ultrasonic wave and the frequency, and warns the driver of the presence of an obstacle.

The first sensor 20 and the second sensor 30 are usually disposed at the front of the vehicle or at the rear of the vehicle, so that the driver is not visible to the driver when driving the bent front corner or during the rear parking. It helps to detect dead objects.

Hereinafter, for convenience of description, a case in which the first sensor 20 and the second sensor 30 are disposed on the right side of the front part of the vehicle will be described, and the rest of the description will be omitted for convenience. However, the technical content is to be found in advance by the claims.

The first sensor 20 of the first sensor 20 and the second sensor 30 installed on the right side of the front bumper (not shown) of the vehicle generally detects an object existing in the front side of the vehicle. It is disposed to face forward, so that the second sensor 30 is disposed toward the side to detect an object present on the right side of the vehicle. Here, the first sensor 20 and the second sensor 30 is preferably disposed to detect an object within the range of the first sensing area 25 and the second sensing area 35, respectively, in particular, The first sensing region 25 and the second sensing region 35 overlap each other within a predetermined range, and the overlapping portion is referred to as a third sensing region 45 for convenience.

On the other hand, the object detection sensor module 10 of the vehicle according to the present invention, a single amplifier for receiving and amplifying a predetermined signal sent when the object is detected by the first sensor 20 and the second sensor 30. It further includes (50).

The single amplifier 50 is configured to amplify a signal transmitted from two or more of the sensors, which is meaningful to amplify two or more sensor signals through one single amplifier 50.

In addition, the object detection sensor module 10 of the vehicle according to the present invention, the control unit 60 for controlling the operation of various operation units (not shown) of the vehicle by analyzing a plurality of signals amplified by the single amplifier 50 More). Here, the control unit 60 is not provided to correspond to the number of each sensor, but instead of the control unit 60 that can collectively control the plurality of operation by analyzing the signal amplified from one single amplifier 50 ) Is meaningful.

On the other hand, the plurality of operation unit, when it is determined that the object exists in the first sensing area to the third sensing area (25, 35, 45) when the vehicle is traveling in front of the driving to prevent the accident of the vehicle It may be a brake system that stops the vehicle, a steering wheel steering system capable of forcibly steering the steering wheel to actively avoid obstacles, or an alarm system that notifies the driver that an obstacle exists. In addition, many operation units may be exemplified, but it is obvious that all operation units installed in the vehicle which may be controlled based on a signal received from the object detection sensor module 10 of the vehicle according to the present invention may be included therein.

As shown in FIG. 2, the object sensing sensor module 10 of the vehicle according to the present invention includes the first sensing region 25 and the second sensor 30 sensed by the first sensor 20. The second sensing area 35 detected by the second sensing area 35 and the third sensing area 45 which is an intersection of the first sensing area 25 and the second sensing area 35. The first sensor 20 and the second sensor 30 is characterized in that arranged on the right side of the front of the vehicle.

In particular, the first sensor 20, the second sensor 30, and the single amplifier 50 may form a single sensor module 10 such that the single sensor module 10 is modularly arranged in front of the vehicle. . As such, when the single sensor module 10 is modularized into a single unit, when the detection signals received from the plurality of sensors by the single amplifier 50 are amplified and received by the control unit 60, the control unit 60. ) Integrally interprets the signals to collectively control the operation of the plurality of operation units.

In other words, the first sensor 20 is in charge of the object detection area on the front side of the vehicle, the second sensor 30 is in charge of the object detection area on the side of the vehicle, and the first sensor 20 And the third sensing region 45 overlapping the second sensor 30 corresponds to a middle portion of the first sensing region 25 and the second sensing region 35.

3 is a lock-up table that simply displays an operation of the object detecting sensor module 10 of the vehicle according to the present invention. Referring to this, the control unit 60 includes the first sensor 20 and the When the second sensor 30 simultaneously detects an object and sends a predetermined detection signal, the second sensor 30 determines that an object exists at a predetermined position within the third sensing area 45 to control the plurality of operation units.

In addition, when only one of the first sensor 20 or the second sensor 30 detects an object and transmits a predetermined detection signal, the control unit 60 sends the first detection area 25 or the first sensor. The plurality of operation units are controlled by determining that an object exists at a predetermined position in the corresponding sensing area of the two sensing areas 35.

As such, detecting obstacles existing in the first to third sensing areas 25, 35 and 45 by using the first sensor 20 and the second sensor 30 has been previously described. Compared to detecting only one detection area by using one sensor, it is possible to detect a wider detection area and to detect / detect obstacles more precisely by transmitting and receiving ultrasonic waves of different frequency bands for each sensor. There is an advantage to this.

For example, when turning to the left side of the vehicle in FIG. 2, since one sensor is conventionally used, a sensing area inclined toward the right side of the vehicle has to be secured. However, in the present invention, two sensors are used. As described above, the first sensor 20 faces the front side and the second sensor 30 faces the right side, but the first sensor 20 and the second sensor 30 have the same. In addition to expanding the range of detection for each of the first sensing area 25 and the second sensing area 35, the obstacles of the third sensing area 45, which are the intersections of the two sensors, are also subdivided and detected. As a result, more precise sensing can be achieved.

In this case, the third sensing region 45 may be a case where the first sensor 20 and the second sensor 30 simultaneously detect an object.

On the other hand, Figure 4 is a block diagram showing a vehicle control method using the object detection sensor module 10 of the vehicle according to the present invention.

As shown in FIG. 4, when the vehicle starts to run, the sensor module 10 of the vehicle according to the present invention starts operation. This will be briefly referred to as sensor module operation step (S10).

After the operation of the sensor module 10, an object in the first sensor 20 and a side second sensing area 35 of the vehicle is sensed so as to sense an object in the front first sensing area 25 of the vehicle. An amplification step (S10) is performed to amplify the sensing signal transmitted from each sensor of the second sensor 30, which transmits and receives the ultrasonic wave of the second frequency, using the single amplifier 50.

After the amplifying step, the signal amplified by the amplifier is received so that the detected object is located in the first sensing region 25 or in the second sensing region 35 and the first sensing region. An object position determining step S20 is performed to determine whether the sensing area 25 is located in the third sensing area 45, which is an overlapping area between the sensing area 25 and the second sensing area 35.

Finally, after the object position determination step, if the position of the object is determined, the vehicle is differently depending on the degree to which the object is located in the first to third sensing areas 25, 35, 45. Operation unit operation control step (S20) of controlling the operation of the various operation unit of the is performed.

As described above, in the vehicle control method using the object detection sensor module 10 of the vehicle according to the present invention, more precise and accurate detection of obstacles is made as compared with the past, and more precise operation of the vehicle according to each detection signal. By controlling the wealth, it is possible to prevent the accident of the vehicle and to provide a safer driving by warning the blind spots that are out of the driver's view.

Or more, with reference to the accompanying drawings, a preferred embodiment of the vehicle object detection sensor module and a vehicle control method using the same according to the present invention has been described in detail. However, embodiments of the present invention are not necessarily limited to the above-described preferred embodiment, it is natural that those skilled in the art to which the present invention pertains can be carried out in various modifications and equivalent ranges. Therefore, the true scope of the present invention will be defined by the claims below.

10: sensor module 20: first sensor
25: first detection area 30: second sensor
35: second sensing area 45: third sensing area

Claims (5)

A first sensor for transmitting an ultrasonic wave of a first frequency and recognizing that the object exists in the first sensing area when the transmitted ultrasonic wave is reflected by the object and received;
A second sensor which transmits an ultrasonic wave of a second frequency different from the first sensor, and recognizes that the object exists in the second sensing area when the transmitted ultrasonic wave is reflected by the object;
A single amplifier for amplifying a signal sensed by the first sensor and the second sensor;
A control unit which analyzes the signal amplified by the single amplifier and controls the operation of the plurality of operation units of the vehicle according to the presence or absence of an object,
The first sensor and the second sensor is disposed on the front side of the vehicle, the object sensing sensor of the vehicle is modularized and bonded to form a third sensing region where the first sensing region and the second sensing region overlap with respect to a part module.
The method according to claim 1,
And the first sensor, the second sensor, and the single amplifier are modularized to be disposed in front of the vehicle to form a single sensor module.
The method according to claim 1,
The first sensor is in charge of the object detection area on the front side of the vehicle, the second sensor is in charge of the object detection area on the side of the vehicle, the third detection area overlapping the first sensor and the second sensor Is an object sensing sensor module of a vehicle corresponding to a middle portion of the first sensing area and the second sensing area.
The method according to claim 3,
The control unit,
When the first sensor and the second sensor simultaneously detects an object and sends a predetermined detection signal, it is determined that an object exists at a predetermined position within the third sensing area, and controls the plurality of operation units.
When only one of the first sensor and the second sensor detects an object and transmits a predetermined detection signal, it is determined that an object exists at a predetermined position in a corresponding sensing area of the first sensing area or the second sensing area. Object sensing sensor module for controlling the plurality of operation units.
A first sensor for transmitting and receiving an ultrasonic wave of a first frequency to detect an object in the front first sensing region of the vehicle and a second sensor for transmitting and receiving an ultrasonic wave of a second frequency to detect an object in the second sensing region of the lateral side of the vehicle. An amplifying step of amplifying the sensed signal sent from each sensor using a single amplifier;
Receiving a signal amplified by the amplifier, detecting whether the detected object is located in the first sensing region or the second sensing region, and an overlapping region of the first sensing region and the second sensing region ( An object position determining step of determining whether it is located in the third sensing area);
When the position of the object is determined by the object position determining step, the operation unit operation control step of controlling the operation of the various operating units of the vehicle differently depending on the degree of the object is located in the first sensing region to the third sensing region; Vehicle control method using an object detection sensor of the vehicle comprising.

KR1020100114525A 2010-11-17 2010-11-17 Sensor module for sensing something of vehicles and control method of vehicles using the sensor module KR20120053313A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170077314A (en) * 2015-12-28 2017-07-06 자동차부품연구원 Apparatus and method for collision avoiding using ultrasonic sensor
KR20220139064A (en) 2021-04-07 2022-10-14 현대모비스 주식회사 Vehicle sensor control system and control method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170077314A (en) * 2015-12-28 2017-07-06 자동차부품연구원 Apparatus and method for collision avoiding using ultrasonic sensor
KR101868088B1 (en) * 2015-12-28 2018-07-17 자동차부품연구원 Apparatus and method for collision avoiding using ultrasonic sensor
KR20220139064A (en) 2021-04-07 2022-10-14 현대모비스 주식회사 Vehicle sensor control system and control method
US11917009B2 (en) 2021-04-07 2024-02-27 Hyundai Mobis Co., Ltd. System for controlling vehicle sensor and method of controlling same

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