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公开(公告)号：US20210311189A1
公开(公告)日：2021-10-07
申请号：US17349603
申请日：2021-06-16
Applicant: DENSO CORPORATION
Inventor： Yohei SUZUKI , Yu KOYAMA , Mitsuyasu MATSUURA , Satoru NORO , Tetsuya AOYAMA , Hideki OTSUKA
IPC: G01S15/931 , G01S15/10 , G01S7/523
Abstract: An object detecting apparatus is configured to detect a surrounding object. The object detecting apparatus is provided with a driving signal generation unit provided to generate a driving signal that drives a transmitter unit including a transmitter emitting transmission waves externally; and a control unit provided to control an output of the driving signal transmitted to the transmitter unit from the driving signal generation unit. The driving signal generation unit is configured to generate the driving signal of which the frequency changes stepwise.
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公开(公告)号：US20200041638A1
公开(公告)日：2020-02-06
申请号：US16339939
申请日：2017-10-03
Applicant: DENSO CORPORATION
Inventor： Yusuke AKAMINE , Mitsuyasu MATSUURA , Yasuyuki MIYAKE
Abstract: A vehicle information providing apparatus (hereinafter, apparatus) repeatedly acquires observation point information. The apparatus calculates at least one position of the predicted point. When the observation point information is acquired, the apparatus extracts a predicted point that can be connected to the observation point from the calculated predicted points. The apparatus calculates the position of the current filtered point based on the position of the current observation point and the position of the latest predicted point. When the observation point information of a new object (an object having no latest predicted point connectable to the observation point) is acquired, the device sets initial vectors. The apparatus calculates the position of the predicted point at time instants succeeding the current time instant for each of the traveling directions indicated by the initial vectors.
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公开(公告)号：US20200019797A1
公开(公告)日：2020-01-16
申请号：US16584137
申请日：2019-09-26
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu MATSUURA , Hideki OTSUKA , Hirohiko YANAGAWA
Abstract: An obstacle detection apparatus includes a distance measuring sensor, an imaging section, and a control section. Based on a reception result of reception waves obtained by the distance measuring sensor, the control section acquires an estimated reflection position in an illuminated region already irradiated with search waves. Based on the estimated reflection position, the control section recognizes an outer shape of an obstacle. Based on an imaging result obtained by the imaging section, the control section performs image recognition of the obstacle. Based on a recognition result of the outer shape of the obstacle and a result of the image recognition, the control section acquires a relative position, with respect to a vehicle, of a portion of the obstacle in an image captured by the imaging section included in a non-irradiated region ahead of the illuminated region in a vehicle traveling direction.
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公开(公告)号：US20200210722A1
公开(公告)日：2020-07-02
申请号：US16328465
申请日：2017-08-03
Applicant: DENSO CORPORATION
Inventor： Yu MAEDA , Taketo HARADA , Mitsuyasu MATSUURA , Hirohiko YANAGAWA
Abstract: A perimeter monitoring device is applied to a vehicle comprising a distance measuring sensor for transmitting a probing wave and receiving a reflected wave of the probing wave and an imaging device for capturing an image of the surroundings of the vehicle. The perimeter monitoring device comprises: an information acquisition unit for acquiring distance information, directional information, and object width information of an object existing in the vicinity of the vehicle as detection information of the object provided by the distance measuring sensor; an area setting unit for setting an image processing area on which image processing is performed in the image captured by the imaging device based on the distance information, the directional information, and the object width information acquired by the information acquisition unit; and an object recognition unit for performing the image processing on the image processing area set by the area setting unit to recognize the object.
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公开(公告)号：US20200011969A1
公开(公告)日：2020-01-09
申请号：US16338809
申请日：2017-09-22
Applicant: DENSO CORPORATION
Inventor： Satoru NORO , Hiroyuki KANI , Hideki OTSUKA , Mitsuyasu MATSUURA
Abstract: A sensor unit including an object detection sensor and an inclination sensor is mounted to a vehicle, and axial misalignment of the object detection sensor is determined as follows. A first inclination angle acquiring step of disposing the sensor unit, so that a first predetermined direction is aligned with a second predetermined direction before the sensor unit is mounted to the vehicle, and acquiring a first inclination angle detected by the inclination sensor from the inclination sensor, is performed. Then, a second inclination angle acquiring step of mounting the sensor unit on the vehicle and acquiring a second inclination angle detected by the inclination sensor from the inclination sensor, is performed. Finally, an axial misalignment determining step of determining whether axial misalignment has occurred at the object detection sensor, based on the first inclination angle and the second inclination angle, is performed.
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Patent Agency Ranking
公开(公告)号：US20190291722A1
公开(公告)日：2019-09-26
申请号：US16305230
申请日：2017-05-25
Applicant: DENSO CORPORATION
Inventor： Yu MAEDA , Taketo HARADA , Mitsuyasu MATSUURA , Hirohiko YANAGAWA
Abstract: A parking assistance device is applied to a vehicle equipped with a camera for capturing an image of an area in front of the vehicle and is configured to assist forward parking of the vehicle in a parking space. The parking assistance device includes: a position estimation unit which, in a situation where the vehicle is advancing toward the parking space in a lateral passage of the parking space, estimates, based on an image captured by the camera, at least one of a first corner position, which is a near-side corner position at a vehicle entrance part of the parking space, and a second corner position, which is a far-side corner position at the vehicle entrance part, before the vehicle passes by the parking space; and a space recognition unit which recognizes the parking space for forward parking based on the at least one estimated corner position.
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公开(公告)号：US20190204428A1
公开(公告)日：2019-07-04
申请号：US16332531
申请日：2017-08-03
Applicant: DENSO CORPORATION
Inventor： Taketo HARADA , Mitsuyasu MATSUURA , Yu KOYAMA
CPC classification number: G01S7/52004 , B60Q5/005 , G01S7/526 , G01S15/87 , G01S15/93 , G01S15/931 , G01S2007/52009 , G01S2015/938
Abstract: An ECU of an object detection device stops transmission of search waves from a plurality of ultrasonic sensors when a vehicle travels at a predetermined speed or more, and counts the frequency of receiving waves with an intensity of not less than a threshold intensity for each of the plurality of ultrasonic sensors. The ECU acquires a first count that is a count of the frequency in a first sensor that is one of the plurality of ultrasonic sensors, and a second count that is a count of the frequency in a second sensor different from the first sensor. The ECU determines that snow accretion has occurred on the first sensor if the first count is smaller than the second count, and a difference between the first count and a representative value that is set based on the second count is not less than a predetermined value.
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公开(公告)号：US20220113404A1
公开(公告)日：2022-04-14
申请号：US17645570
申请日：2021-12-22
Applicant: DENSO CORPORATION
Inventor： Yu KOYAMA , Mitsuyasu MATSUURA , Satoru NORO , Tetsuya AOYAMA
IPC: G01S15/52
Abstract: An object detection apparatus detects an object in a vicinity of a moving body to which it is mounted. In the object detection apparatus, first drive signal and second drive signals for driving a transmitting unit are generated and outputted to the transmitting unit. The first drive signal corresponds to a first transmission wave included in a plurality of transmission waves that are continuously transmitted from a start to an end of a transmission process of the transmission wave, and respectively encoded based on waveform patterns. The second drive signal corresponds to a second transmission wave included in the plurality of transmission waves and transmitted after the first transmission wave. Reception determination regarding the reflected wave is performed based on a frequency signal, corresponding to a waveform pattern of the reception signal, and a reference signal that corresponds to a waveform pattern of the first drive signal.
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公开(公告)号：US20210311185A1
公开(公告)日：2021-10-07
申请号：US17349608
申请日：2021-06-16
Applicant: DENSO CORPORATION
Inventor： Yu KOYAMA , Mitsuyasu MATSUURA , Satoru NORO , Tetsuya AOYAMA
IPC: G01S15/10 , G01S15/931 , G01S7/52
Abstract: An apparatus includes a drive signal generator that selectively outputs, as a drive signal, one of a first drive signal and a second drive signal. The first drive signal has a first temporal frequency change within a first frequency band that is defined from a first lowest frequency to a first highest frequency inclusive. The second drive signal has a second temporal frequency change within a second frequency band that is defined from a second lowest frequency to a second highest frequency inclusive. Each of the first and second frequency bands has a corresponding one of first and second intermediate frequencies that is defined as one of a center frequency and an average frequency of the corresponding one of the first and second frequency bands. The second intermediate frequency is different from the first intermediate frequency. The second frequency band is partially overlapped with the first frequency band.
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公开(公告)号：US20210223394A1
公开(公告)日：2021-07-22
申请号：US17220423
申请日：2021-04-01
Applicant: DENSO CORPORATION
Inventor： Yu KOYAMA , Mitsuyasu MATSUURA , Satoru NORO , Hideki OTSUKA , Tetsuya AOYAMA
IPC: G01S15/931 , G01S7/524 , G01S7/526
Abstract: An object detection device includes a signal generator configured to generate a drive signal including an identification signal for identifying ultrasonic waves, a transmitter configured to transmit an ultrasonic wave as a probe wave in response to the drive signal, a receiver configured to receive the ultrasonic wave to generate a reception signal, and a determiner configured to analyze frequencies of the reception signal to determine whether the received wave is a reflected wave of the probe wave, thereby detecting an object. The drive signal includes a ramp-up signal generated to be followed by the identification signal and is used to ramp up an amplitude of the probe wave. A frequency of the ramp-up signal is set to include a frequency at which a transmission/reception efficiency is higher than a transmission/reception efficiency at each of a maximum frequency of the identification signal and a minimum frequency of the identification signal.
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