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公开(公告)号：US20210170968A1
公开(公告)日：2021-06-10
申请号：US17181967
申请日：2021-02-22
Applicant: DENSO CORPORATION
Inventor： Keisuke UEDA , Taketo HARADA , Takeo TSUZUKI
IPC: B60R21/01 , G01S7/521 , G01S15/931
Abstract: A retainer member is equipped with a microphone facing portion, a drain path, and a stamped wall portion. The microphone facing portion is formed in a cylindrical shape matching an ultrasonic microphone is disposed outside the ultrasonic microphone in a radial direction extending radially from a longitudinal center line. The microphone facing portion extends from a body retaining portion toward a base side in an axial direction. The drain path extends through the microphone facing portion in the radial direction and is capable of discharging water from an inner space in the microphone facing portion. The stamped wall portion is formed in the microphone facing portion and faces the drain path through the longitudinal center line.
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公开(公告)号：US20210055397A1
公开(公告)日：2021-02-25
申请号：US17092639
申请日：2020-11-09
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu MATSUURA , Yu KOYAMA , Taketo HARADA
Abstract: An object detection device includes a signal generation unit, a drive unit, an object determination unit, and a drive control unit. The signal generation unit generates at least one pulse signal that includes an identification code for identifying the ultrasonic wave. The drive unit drives the wave transceiver unit using a current or a voltage according to the at least one pulse signal. The object determination unit compares a code included in the received ultrasonic wave with the identification code and determines whether the received ultrasonic wave is a wave resulting from reflection of the ultrasonic wave transmitted by the wave transceiver unit, and determines whether an object is present in a predetermined detection range based on the amplitude of the received ultrasonic wave. The drive control unit reduces the current or the voltage used by the drive unit when a predetermined amplitude rise time has elapsed.
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公开(公告)号：US20190302248A1
公开(公告)日：2019-10-03
申请号：US15781589
申请日：2016-11-30
Applicant: DENSO CORPORATION
Inventor： Yu KOYAMA , Tetsuya AOYAMA , Taketo HARADA
Abstract: An object detection device is applied to an object detection system configured such that connection to a control device is made via a communication line to perform power supply via the communication line and a signal is superimposed on current flowing through the communication line to transfer information. The object detection device is configured to drive a piezoelectric vibrator in a predetermined control period and transmit a survey wave and receive a wave reflected by an object. The object detection device includes a capacitor connected in parallel with a driver circuit configured to drive the piezoelectric vibrator, and a current control unit configured to control the current value of the communication line after the end of supplying power to the driver circuit.
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公开(公告)号：US20190228238A1
公开(公告)日：2019-07-25
申请号：US16317296
申请日：2017-07-11
Applicant: DENSO CORPORATION
Inventor： Taketo HARADA , Mitsuyasu MATSUURA , Yosuke MIYAMOTO
Abstract: An ECU is applied to a vehicle system that is provided with lateral sensors which acquire distance information expressing a distance to an object that is located at a position on a lateral side of a vehicle. When distance information on the object is acquired by the lateral sensors, a judgement is made by the ECU as to whether or not the object is a predetermined moving object that moves relative to the vehicle. The ECU determines that the object is a target to be subjected to contact avoidance processing for avoiding contact with the object, based on a result of judging whether or not the object for which the distance information is acquired is a moving object.
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公开(公告)号：US20180329044A1
公开(公告)日：2018-11-15
申请号：US15778027
申请日：2016-11-21
Applicant: DENSO CORPORATION
Inventor： Takuya NOMURA , Mitsuyasu MATSUURA , Taketo HARADA
CPC classification number: G01S7/52006 , G01S7/521 , G01S7/524 , G01S7/526 , G01S15/87 , G01S15/931 , G01S2007/52007 , G01S2015/938 , H04R3/00
Abstract: An object detection apparatus includes an object detecting unit detecting an object present around a subject vehicle based on received waves, in a case of receiving reflected waves, from the object, of ultrasonic waves transmitted from an ultrasonic sensor as transmitted waves. The object detection apparatus includes a temperature sensor detecting a temperature of the ultrasonic sensor, and based on a detected value of the temperature of the ultrasonic sensor, corrects at least one of a reception sensitivity for the received waves received by the ultrasonic sensor and a transmission intensity for the transmitted waves from the ultrasonic sensor. The object detection apparatus then detects the object using the corrected received waves.
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Patent Agency Ranking
公开(公告)号：US20160069990A1
公开(公告)日：2016-03-10
申请号：US14787735
申请日：2014-04-21
Applicant: Kimitaka SAITOH , DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Taketo HARADA , Mitsuyasu MATSUURA , Keiko AKIYAMA
CPC classification number: G01S7/539 , G01S7/521 , G01S15/08 , G01S15/42 , G01S15/876 , G01S15/931 , G01S2015/932 , G01S2015/938 , G01S2015/939 , G08G1/165
Abstract: An obstacle detection device includes a plurality of ultrasonic sensors and a detection control unit. The detection control unit detects an object by using one of at least two of the ultrasonic sensors as a transmission sensor that transmits an ultrasonic wave and the other of the at least two of the ultrasonic sensors as a reception sensor that receives the ultrasonic wave transmitted by the transmission sensor and reflected. A difference of heights of the one used as the transmission sensor and the other used as the reception sensor attached to a surface of a vehicle body from a ground is a predetermined threshold height that is defined based on twice a height of a bump on the ground as a non-detection object.
Abstract translation: 障碍物检测装置包括多个超声波传感器和检测控制单元。 检测控制单元通过使用超声波传感器中的至少两个中的至少两个来检测物体作为发送超声波的传输传感器，并且将至少两个超声波传感器中的另一个作为接收传感器接收超声波传输的超声波 传输传感器和反射。 用作传动传感器的高度差和作为从地面附着到车身表面的接收传感器的高度差是基于地面上的凸块的高度的两倍定义的预定阈值高度 作为非检测对象。
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公开(公告)号：US20230057481A1
公开(公告)日：2023-02-23
申请号：US17938599
申请日：2022-10-06
Applicant: DENSO CORPORATION
Inventor： Taketo HARADA , Keisuke UEDA
IPC: G01S15/931
Abstract: A sensor attachment is used in securing an ultrasonic sensor to a plate-like vehicle body member. The ultrasonic sensor is equipped with a cylindrical ultrasonic microphone extending in an axial direction perpendicular to a center axis line. The sensor attachment includes a cylinder which is fit in a through-hole in the vehicle body member and surrounds the ultrasonic microphone in a vehicle-mounted state where the ultrasonic sensor is mounted in the vehicle body member. The cylinder includes a through-hole facing portion which faces an inner surface of the through- hole in proximity thereto in a radial direction perpendicular to the center axis line in the vehicle- mounted state. The through-hole facing portion is designed to have a contact surface-decreasing structure which minimizes an area of contact with the inner surface of the through-hole.
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公开(公告)号：US20220003856A1
公开(公告)日：2022-01-06
申请号：US17477268
申请日：2021-09-16
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu MATSUURA , Taketo HARADA , Tetsuya AOYAMA , Yu KOYAMA , Takuya NOMURA
Abstract: An ultrasonic sensor (10), that transmits probe waves which are ultrasonic waves and acquires detection waves including reflected waves which have been reflected from surrounding objects, includes a transmitter/receiver (12) that transmits the probe waves and acquires the detection waves, a detection wave processing section (13) that executes processing for passing a predetermined frequency band which includes the frequency of the probe waves, an amplitude measurement section (14) which measures the amplitude of the detection waves, and a judgement section (17) which judges whether there is adherence of foreign matter on the transmitter/receiver, based on a relationship between a time axis and values of the amplitude of the detection waves during a reverberation interval following the termination of transmitting the probe waves.
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公开(公告)号：US20210306590A1
公开(公告)日：2021-09-30
申请号：US17346662
申请日：2021-06-14
Applicant: DENSO CORPORATION
Inventor： Yu MAEDA , Taketo HARADA , Mitsuyasu MATSUURA , Hirohiko YANAGAWA , Muneaki MATSUMOTO
Abstract: An image processing unit identifies the shape of an obstacle that is identified from an area that appears in a peripheral image based on an image captured by a camera. The shape of the obstacle includes at least a tilt of a section of the obstacle in a road-surface direction. The section of the obstacle faces a vehicle. The image processing unit generates a superimposed image in which a mark image that is generated as a pattern that indicates the identified obstacle is superimposed onto a position that corresponds to the obstacle in the peripheral image. At this time, the image processing unit variably changes properties of the mark image based on the tilt of the obstacle identified by an obstacle identifying unit. The image processing unit then displays the generated superimposed image on display apparatus.
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公开(公告)号：US20200249347A1
公开(公告)日：2020-08-06
申请号：US16854023
申请日：2020-04-21
Applicant: DENSO CORPORATION
Inventor： Yohei SUZUKI , Mitsuyasu MATSUURA , Taketo HARADA , Hirohiko YANAGAWA
Abstract: In an object detection device to be installed to a vehicle and detect an object outside the vehicle, a position calculator sets multiple candidate points representing a candidate position of the object, based on positions of feature points extracted from a first image captured at a first time. The multiple candidate points are set to be denser within a detection range set based on a distance to the object detected by the ultrasonic sensor than outside the detection range. The position calculator estimates positions of the multiple candidate points at a second time which is after the first time, based on the positions of the multiple candidate points and movement information of the vehicle, and calculates the position of the object by comparing the estimated positions of the multiple candidate points at the second time and the positions of the feature points extracted from a second image captured at the second time.
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