KR20130046135A - Vehicular radar system and method thereof - Google Patents

Vehicular radar system and method thereof Download PDF

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Publication number
KR20130046135A
KR20130046135A KR1020110110515A KR20110110515A KR20130046135A KR 20130046135 A KR20130046135 A KR 20130046135A KR 1020110110515 A KR1020110110515 A KR 1020110110515A KR 20110110515 A KR20110110515 A KR 20110110515A KR 20130046135 A KR20130046135 A KR 20130046135A
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KR
South Korea
Prior art keywords
antenna
vehicle
electromagnetic force
module
signal
Prior art date
Application number
KR1020110110515A
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Korean (ko)
Inventor
조윤희
배성호
Original Assignee
현대모비스 주식회사
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Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020110110515A priority Critical patent/KR20130046135A/en
Publication of KR20130046135A publication Critical patent/KR20130046135A/en

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    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/14—Adaptive cruise control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4004—Means for monitoring or calibrating of parts of a radar system
    • G01S7/4026—Antenna boresight
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9321—Velocity regulation, e.g. cruise control

Abstract

The present invention discloses a radar system and method for a vehicle. According to an aspect of the present invention, a vehicle radar system includes: a sensing module configured to detect at least one vehicle information among a speed, a height change, a rotation direction, and a degree of rotation of a vehicle; Checking the reference direction of the vehicle in three dimensions by using the at least one vehicle information, checking the reflected wave of the transmitted electromagnetic wave to confirm the twisted degree of the radiation angle of the electromagnetic wave relative to the reference direction, and the twisted degree A calculation module for outputting a signal to compensate for the loss; And an antenna module configured to apply an electromagnetic force corresponding to the signal to the antenna so that the radiation angle is directed toward the reference direction as the antenna is bent.

Description

Vehicle Radar System and Method

The present invention relates to a radar system, and more particularly to a vehicle radar system and method capable of controlling to match the direction of the vehicle and the angle of the radiation pattern of the radar.

In recent years, as the electronic control technology is developed in the automobile field, various sensor devices are installed and utilized to ensure the safety of drivers, vehicles, and pedestrians while driving.

In particular, radar systems for adaptive cruise control, which are mounted in front of the vehicle and maintain the distance and speed with the preceding vehicle, have been actively developed.

The radar system detects targets in front of the vehicle and maintains a constant speed and distance, and delivers information to avoid accidents when an accident occurs. Therefore, it is necessary to identify accurate and reliable information.

For this purpose, the electromagnetic radiation angle of the radar system must match the direction of the driving vehicle.

By the way, although the radar system is fixed, it can move up and down / left and right slightly by road environment, an external shock, etc. At this time, the antenna direction of the radar system may be changed. If so, the direction of transmitting / receiving the radar signal does not coincide with the front of the vehicle, thereby reducing the accuracy of the radar transmission / reception information. Therefore, the radar system cannot properly detect the front target and it is difficult to ensure the safety of the vehicle.

To avoid this problem, radar systems are usually equipped with the ability to correct the radar radiation angle.

Such a conventional radar system includes an antenna for transmitting and receiving a radar signal, a driving device for adjusting a radar signal transmission and reception direction, and comparing a current antenna direction and a radar directivity target value, when the current antenna direction is out of the target value, the antenna sets a target value. And a control unit (radar directivity setting section + antenna direction control section) for transmitting the result to the drive unit. At this time, the radar directivity setting unit transmits the result to the antenna direction control unit if the current antenna direction and the radar directivity target value calculated from the respective information from the gyro sensor, the steering wheel angle sensor and the transmission of the vehicle are different. The antenna direction control unit determines the rotation angle of the antenna so that the antenna can be raised to the target directivity value according to the signal from the radar directivity control unit and controls the driving device according to the result. That is, in the conventional radar system, the angle of the antenna is mechanically adjusted up, down, left and right by a combination of motors and gears.

Therefore, the conventional radar system further requires a motor for vertical adjustment and a motor for adjusting left and right, thereby increasing the total power consumption. In addition, the conventional radar system has a problem in space when mounted on the vehicle due to the increased volume due to the motor drive device.

The present invention has been made in the technical background as described above, to provide a vehicle radar system and method that can adjust the radiation angle of the antenna by adjusting the bending angle of the metal panel (patch antenna) by using the force of the electromagnetic force. The purpose.

According to an aspect of the present invention, a vehicle radar system includes: a sensing module configured to detect at least one vehicle information among a speed, a height change, a rotation direction, and a degree of rotation of a vehicle; Checking the reference direction of the vehicle in three dimensions by using the at least one vehicle information, checking the reflected wave of the transmitted electromagnetic wave to confirm the twisted degree of the radiation angle of the electromagnetic wave relative to the reference direction, and the twisted degree A calculation module for outputting a signal to compensate for the loss; And an antenna module configured to apply an electromagnetic force corresponding to the signal to the antenna so that the radiation angle is directed toward the reference direction as the antenna is bent.

Antenna module according to another aspect of the present invention, the antenna for transmitting and receiving electromagnetic waves; A line receiving a signal for compensating for a degree that the radiation angle of the antenna is distorted from a reference direction of the vehicle; An electromagnetic force adjusting patch connected to the antenna to bend the antenna by applying a repulsive force or attraction force by an electromagnetic force corresponding to the signal to the antenna to adjust the radiation angle; And a substrate on which the antenna, the electromagnetic force adjustment patch, and the line are disposed.

According to still another aspect of the present invention, there is provided a vehicle radar control method comprising: detecting at least one vehicle information among a speed, a height change, a rotation direction, and a degree of rotation of a vehicle; Confirming a reference direction of the vehicle in three dimensions by using the at least one vehicle information; Confirming the twisted degree of the radiation angle of the antenna relative to the reference direction by transmitting electromagnetic waves and checking the reflected waves; And adjusting the radiation angle toward the reference direction according to the bending of the antenna by applying an electromagnetic force compensating for the twisted degree to the antenna.

According to the present invention, since the radiation angle of the antenna is adjusted by adjusting the bending angle of the metal panel (patch antenna) by adjusting the direction and magnitude of the electromagnetic force, a physical driving device (motor or gear, etc.) for rotating the radar system itself is provided. Can be omitted.

Therefore, the present invention can reduce the size, weight, material cost and power consumption of the radar system, simplify the production process, adjust the radiation angle (directivity) of the antenna more quickly, and can expect higher reliability. .

In addition, the present invention can more accurately correct the radiation angle of the antenna as the front of the vehicle by accurately analyzing the vehicle state by a plurality of sensors (five sensors) provided in the vehicle, so that the target detection It can increase the accuracy and reliability.

Figure 1a is a block diagram showing a vehicle radar system of the present invention.
1B is a mounting example of a vehicle radar system of the present invention.
2 shows the structure of the radar system of the present invention.
Figure 3a shows an antenna module of the present invention.
Figure 3b to 3d is an illustration of adjustment of the radiation angle of the antenna module of the present invention.
4 is a view showing a patch array antenna applied to the antenna module of the present invention.
5 is a flowchart illustrating a vehicle radar method of the present invention.

Advantages and features of the present invention, and methods of achieving the same will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being 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. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms " comprises, " and / or "comprising" refer to the presence or absence of one or more other components, steps, operations, and / Or additions.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Figure 1a is a block diagram showing a vehicle radar system according to an embodiment of the present invention, Figure 1b is a view showing a mounting example of a vehicle radar system according to an embodiment of the present invention.

As shown in FIG. 1A, the vehicle radar system 10 according to an exemplary embodiment of the present invention includes a sensing module 100, a calculation module 200, and an antenna module 300, which are provided in a vehicle as shown in FIG. 1B. Can be.

The sensing module 100 detects at least one vehicle information among a speed of the vehicle, a change in height of the vehicle, a rotation direction of the vehicle, and a degree of rotation of the vehicle and transmits the detected vehicle information to the calculation module 200.

The detection module 100 may include a wheel speed sensor 110, a passenger occupancy sensor 120, an acceleration sensor 130, a steering angle sensor 140, and a yaw rate sensor 150. Include.

The wheel speed sensor 110 detects the speed of the wheel by using the wheel rotation and the stop direction of the wheel of the vehicle.

The ride occupant detection sensor 120 detects a change in height of the vehicle by detecting a change in the weight of the occupant and the vehicle in the vehicle.

The acceleration sensor 130 calculates the acceleration of the vehicle and detects the distance traveled and the speed of the vehicle.

The steering angle sensor 140 detects how much the driver has rotated the steering wheel and detects the rotation direction of the vehicle.

Yaw rate sensor 150 detects the degree of rotation of the vehicle by detecting the rotational angular velocity of the vehicle in the vertical axis direction.

In this case, the sensing module 100 and the calculation module 200 may transmit and receive vehicle information through a vehicle network such as controller area network (CAN) communication.

The calculation module 200 receives at least one vehicle information from the sensing module 100 and checks a reference direction of the vehicle (a direction in which radars such as front and rear are radiated) in three dimensions by using the at least one vehicle information. do. Here, since the radar system 10 provided in the front normally sets the front in the reference direction, the following description will be given taking the case in which the reference direction is the front.

The calculation module 200 checks the reflected wave of the transmitted electromagnetic wave, checks the twisted degree of the radiation angle against the front of the vehicle, and outputs a compensation signal having a magnitude that compensates for the twisted degree. In this case, the calculation module 200 may compare the amount and magnitude of the reflected wave with a preset reference value to check the degree of twist of the radiation angle compared to the front side.

The antenna module 300 applies an electromagnetic force of a magnitude and a direction corresponding to the compensation signal to the antenna to adjust the radiation angle of the antenna toward the front as the antenna is bent. The antenna module 300 will be described later with reference to FIGS. 3A to 3D.

Hereinafter, a structure of a radar system according to an embodiment of the present invention will be described with reference to FIG. 2. 2 is a view showing the structure of a radar system according to an embodiment of the present invention.

As shown in FIG. 2, the radar system 10 according to an exemplary embodiment of the present invention includes a radar dome 400, an antenna module 300, a transmission / reception module 600, a calculation module 200, and an instrument 500.

The radar dome 400 includes the antenna module 300 in an internal space to protect the antenna module 300 from external impact or foreign matter.

The antenna module 300 includes one or more antennas, and radiates electromagnetic waves toward the front of the vehicle through the antennas or receives electromagnetic waves reflected by the target.

The antenna module 300 may adjust the radiation angle of the antenna by an electromagnetic force, which will be described later with reference to FIGS. 3A and 3D.

The transmission / reception module 600 converts the baseband signal to be transmitted into electromagnetic waves of a predetermined high frequency band and transmits the signal to the antenna module 300, and transmits the received high frequency band signal received from the antenna module 300 to the baseband signal. Converted to and transmitted to the calculation module 200.

The calculation module 200 performs the function described above with reference to FIG. 1, and also determines the distance to the target using the received baseband signal.

The instrument 500 fixes the antenna module 300, the transmission / reception module 600 and the calculation module 200 therein, and together with the radar dome 400, the antenna module 300, the transmission / reception module 600 and the calculation module ( 200) to protect it from the external environment.

Hereinafter, an antenna module according to an exemplary embodiment of the present invention will be described with reference to FIGS. 3A to 3D.

Figure 3a is a view showing an antenna module according to an embodiment of the present invention, Figures 3b to 3d is an illustration of the adjustment of the radiation angle of the antenna module according to an embodiment of the present invention. 3A is a perspective view of an antenna module according to an embodiment of the present invention, and FIGS. 3B to 3D are side views.

As shown in Figure 3a, the antenna module 300 according to an embodiment of the present invention is a single patch antenna 110, the electromagnetic force control patch 120, the first line 130, the second line 140 and the substrate 150 It includes.

The single patch antenna 110 is a radiation patch, radiates and transmits electromagnetic waves, or receives electromagnetic waves reflected by a target. In this case, the single patch antenna 110 may be a metal panel matched to the frequency of the electromagnetic wave.

The first line 130 is connected to the single patch antenna 110 and the transmission / reception module 600 by a via hole or the like, and transmits a signal received at the single patch antenna 110 to the transmission / reception module 600 or transmits / receives a module ( The signal to be transmitted from 600 is transmitted to the single patch antenna 110.

The second line 140 is a pattern of a substrate and is connected to the operation module 200 and the electromagnetic force control patch 120, and receives a compensation signal from the operation module 200 and supplies the compensation signal to the single patch antenna 110. For example, the compensation signal may be a constant voltage having a magnitude compensating for the degree of twist of the radiation angle against the front side.

The electromagnetic force control patch 120 is disposed at the bottom of the single patch antenna 110 at least partially overlapping the single patch antenna 110, and applies a repulsive force or attraction force to the single patch antenna 110 according to the magnitude of the supplied voltage. The radiation angle of the patch antenna 110 is adjusted.

The electromagnetic force control patch 120 is a special metal panel capable of forming an electromagnetic force, and may be, for example, a semiconductor compound having a high dielectric constant and a high magnetic rate.

Electromagnetic force control patch 120 may be produced by ultra-fine processing or micro-semiconductor process using the MEMS (Micro Electro Mechanical Systems) process.

The substrate 150 is a substrate capable of forming an electromagnetic force, and mounts a single patch antenna 110, a first line 130, a second line 140, and an electromagnetic force control patch 120.

As such, the antenna module 300 generates an electromagnetic force according to the magnitude of the compensation signal and applies it to the single patch antenna 110 to adjust the bend and the bend angle of the single patch antenna 110 so that the radiation pattern is at an angle, that is, radiation. You can adjust the angle.

As shown in FIG. 3B, when the compensation signal is not supplied, the electromagnetic force adjustment patch 120 does not apply repulsive force or attraction force by the electromagnetic force to the single patch antenna 110. Thus, the single patch antenna 110 remains horizontal, and the angle of the radiation pattern (hereinafter referred to as "radiation angle") is directed toward the top of the single patch antenna 110 at the center of the single patch antenna 110.

As shown in FIG. 3C, when the compensation signal of both voltages is supplied, the electromagnetic force control patch 120 applies the electromagnetic force (ie, attractive force) attracted to the single patch antenna 110 to bend the single patch antenna 110 downward. Then, the radiation angle of the single patch antenna 110 is directed to the right with respect to the center.

As shown in FIG. 3D, when a negative voltage compensation signal is supplied, the electromagnetic force adjusting patch 120 applies an electromagnetic force (that is, repulsive force) to the single patch antenna 110 to bend the single patch antenna 110 upward. Then, the radiation angle of the single patch antenna 110 is directed to the left with respect to the center.

At this time, the electromagnetic force adjustment patch 120 can be adjusted according to the amplitude of the compensation signal, that is, the degree of the left or right direction of the radiation angle, of course.

In addition, in FIGS. 3C and 3D, the case in which the compensation signal is directed to the right when the positive voltage is left and the left when the compensation signal is the negative voltage has been described as an example.

In the above-described example, the case where the radiation angle of the single patch antenna 110 is adjusted to the left and right has been described as an example.

As mentioned above, the radar system 10 may have one antenna, i.e., a single patch antenna, but typically uses a patch array antenna due to size and channel number constraints. A description with reference to FIG. 4 is as follows. 4 is a diagram illustrating a patch array antenna applied to an antenna module according to an embodiment of the present invention.

As shown in FIG. 4, the patch array antenna 100 ′ is arranged with a plurality of single patch antennas 110 to form a radiation pattern by a combination of the radiation pattern angles of the single patch antenna 110. Therefore, if the antenna module 300 can adjust the radiation pattern angle of the single patch antenna 110 by electromagnetic force, the antenna module 300 may adjust the overall radiation pattern angle of the patch array antenna 100 ′ in a desired direction.

5 is a flowchart illustrating a vehicle radar method according to an exemplary embodiment of the present invention. 5 is a flowchart illustrating a vehicle radar method according to an embodiment of the present invention.

Referring to FIG. 5, the vehicle radar system 10 receives at least one vehicle information among a speed, a height change, a rotation direction, and a degree of rotation from a sensor provided in the vehicle (S510).

The vehicle radar system 10 determines the front of the vehicle by using at least one vehicle information (S520).

The vehicle radar system 10 checks the radiation angle of the electromagnetic wave by transmitting the electromagnetic wave and confirming the amount and size of the electromagnetic wave reflected by the target (S530).

Vehicle radar system 10 checks whether the radiation angle of the electromagnetic wave is directed to the front (S540).

If the radiation angle of the vehicle does not face forward, the vehicle radar system 10 checks the degree of twist of the radiation angle of the electromagnetic wave from the front, and outputs a compensation signal having a magnitude compensating the amount of twist (S550).

The vehicle radar system 10 supplies a compensation signal to the electromagnetic force adjustment patch 120 to apply an attractive force or repulsive force by the electromagnetic force to the antenna (S560).

The vehicle radar system 10 adjusts the radiation angle of the antenna by bending the antenna by manpower or repulsion (S570).

On the other hand, the vehicle radar system 10 detects the target by transmitting and receiving electromagnetic waves when the radiation angle toward the front (S580).

As such, the present invention precisely and reliably corrects the target by analyzing the state of the vehicle precisely through the sensor provided in the vehicle to check the radar radiation angle, and adjusting the radiation angle to the front of the vehicle by adjusting the radiation angle up and down. Sensing can ensure the safety of the vehicle and the driver.

According to the present invention, since the radiation angle of the antenna is adjusted by adjusting the bending angle of the metal panel (patch antenna) by adjusting the direction and magnitude of the electromagnetic force, a physical driving device (motor or gear, etc.) for rotating the radar system itself is provided. Can be omitted.

Therefore, the present invention can reduce the size, weight, material cost and power consumption of the radar system, simplify the production process, adjust the radiation angle (directivity) of the antenna more quickly, and can expect higher reliability. .

In addition, the present invention can more accurately correct the radiation angle of the antenna as the front of the vehicle by accurately analyzing the vehicle state by a plurality of sensors (five sensors) provided in the vehicle, so that the target detection It can increase the accuracy and reliability.

While the present invention has been described in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications, Of course, this is possible. Accordingly, the scope of protection of the present invention should not be limited to the above-described embodiments, but should be determined by the description of the following claims.

Claims (10)

A sensing module configured to detect at least one vehicle information among a speed, a height change, a rotation direction, and a degree of rotation of the vehicle;
Checking the reference direction of the vehicle in three dimensions by using the at least one vehicle information, checking the reflected wave of the transmitted electromagnetic wave to confirm the twisted degree of the radiation angle of the electromagnetic wave relative to the reference direction, and the twisted degree A calculation module for outputting a signal to compensate for the loss; And
An antenna module configured to apply an electromagnetic force corresponding to the signal to the antenna so that the radiation angle is directed toward the reference direction as the antenna is bent
Vehicle radar system comprising a. 2. The apparatus of claim 1,
A wheel speed sensor configured to detect a wheel rotation of the vehicle and a stop direction of the wheel and transmit the detected wheel to the calculation module;
A ride occupant detection sensor configured to detect a change in height by using a ride occupant in the vehicle and a change in weight of the vehicle and transmit the change in height to the calculation module;
An acceleration sensor that calculates an acceleration of the vehicle and detects the speed of the vehicle and transmits the velocity to the calculation module;
A steering angle sensor which senses a rotation of the steering wheel to detect a rotation direction of the vehicle and transmits the steering direction to the calculation module; And
Yaw rate sensor that detects the rotational angular velocity of the vehicle in the vertical axis direction and detects the degree of rotation of the vehicle and transmits it to the calculation module
Vehicle radar system comprising a. The method of claim 1, wherein the calculation module,
And comparing the amount and magnitude of the reflected wave with a predetermined reference value to determine the degree of distortion in relation to the reference direction. The antenna of claim 1, wherein the antenna module includes an array antenna.
Vehicle radar system for adjusting the electromagnetic force of each antenna constituting the array antenna, respectively. The method of claim 1, wherein the antenna module,
The antenna for transmitting the electromagnetic waves and receiving the reflected waves;
An electromagnetic force adjustment patch for bending the antenna by applying repulsive force or attraction force by the electromagnetic force corresponding to the signal to the antenna;
An arranged line for supplying said signal from said computing module to said electromagnetic force control patch
Vehicle radar system comprising a. An antenna for transmitting and receiving electromagnetic waves;
A line receiving a signal for compensating for a degree that the radiation angle of the antenna is distorted from a reference direction of the vehicle;
An electromagnetic force adjusting patch connected to the antenna to bend the antenna by applying a repulsive force or attraction force by an electromagnetic force corresponding to the signal to the antenna to adjust the radiation angle; And
A substrate on which the antenna, the electromagnetic force adjustment patch, and the line are disposed
Antenna module comprising a. The method of claim 6, wherein the electromagnetic force adjustment patch,
An antenna module having a permittivity and a semiconductor compound having a magnetic permittivity higher than or equal to a predetermined reference. The method of claim 6, wherein the electromagnetic force adjustment patch,
Antenna module produced by ultra-fine processing or micro-semiconductor process using MEMS (Micro Electro Mechanical Systems) process. Detecting at least one vehicle information among a speed, a height change, a rotation direction, and a degree of rotation of the vehicle;
Confirming a reference direction of the vehicle in three dimensions by using the at least one vehicle information;
Confirming the twisted degree of the radiation angle of the antenna relative to the reference direction by transmitting electromagnetic waves and checking the reflected waves; And
Adjusting the radiation angle toward the reference direction as the antenna is bent by applying an electromagnetic force compensating for the distortion to the antenna
Vehicle radar control method comprising a. The method of claim 9, wherein the adjusting is,
Supplying a signal to compensate for the skewness; And
Bending the antenna by applying the electromagnetic force of the direction and magnitude corresponding to the signal to the antenna;
Vehicle radar control method comprising a.
KR1020110110515A 2011-10-27 2011-10-27 Vehicular radar system and method thereof KR20130046135A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101684551B1 (en) * 2015-06-26 2016-12-08 현대자동차 주식회사 Mounting angle detection system of bsd sensor and the detection method
WO2017018728A1 (en) * 2015-07-24 2017-02-02 엘지전자 주식회사 Radar for vehicle and vehicle provided therewith
WO2017018729A1 (en) * 2015-07-24 2017-02-02 엘지전자 주식회사 Radar for vehicle and vehicle provided therewith
WO2017213313A1 (en) * 2016-06-08 2017-12-14 엘지전자 주식회사 Lidar device for vehicle and vehicle
WO2019013859A1 (en) * 2017-07-13 2019-01-17 Waymo Llc Sensor adjustment based on vehicle motion

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101684551B1 (en) * 2015-06-26 2016-12-08 현대자동차 주식회사 Mounting angle detection system of bsd sensor and the detection method
WO2017018728A1 (en) * 2015-07-24 2017-02-02 엘지전자 주식회사 Radar for vehicle and vehicle provided therewith
WO2017018729A1 (en) * 2015-07-24 2017-02-02 엘지전자 주식회사 Radar for vehicle and vehicle provided therewith
WO2017213313A1 (en) * 2016-06-08 2017-12-14 엘지전자 주식회사 Lidar device for vehicle and vehicle
US10775484B2 (en) 2016-06-08 2020-09-15 Lg Electronics Inc. Lidar apparatus for vehicles and vehicle having the same
WO2019013859A1 (en) * 2017-07-13 2019-01-17 Waymo Llc Sensor adjustment based on vehicle motion
US11300958B2 (en) 2017-07-13 2022-04-12 Waymo Llc Sensor adjustment based on vehicle motion

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