公开(公告)号：US20240426345A1

公开(公告)日：2024-12-26

申请号：US18828215

申请日：2024-09-09

Applicant: DENSO CORPORATION

Inventor： Yoshihiro KIDA ,  Takanobu KAWANO ,  Yusuke KIMURA ,  Sadahiro AKAMA ,  Harumi HORIHATA ,  Tetsuya OHMI ,  Yasuhiro KITAURA ,  Atsushi KOBAYASHI ,  Teppei MORIKAWA

IPC: F16C41/00 ,  F16C19/08 ,  G01B11/275

Abstract: A detection device for vehicles includes a base section fixed to a body of a vehicle, and a bearing having an outer ring member, an inner ring member, and rolling elements, which rotatably supports a wheel of the vehicle against the base section. A first bearing member of the outer ring member and the inner ring member is fixed to the wheel, and a second bearing member of the outer ring member and the inner ring member is fixed to the base section. The detection device includes a disk-shaped rotating section for detection that extends radially outward of the bearing with respect to the first bearing member, and a displacement detection section that outputs a signal in response to an axial displacement of the rotating section for detection.

公开(公告)号：US20220227363A1

公开(公告)日：2022-07-21

申请号：US17658225

申请日：2022-04-06

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi KOBAYASHI ,  Masumi FUKUMAN ,  Akihiro KIDA ,  Kunihiro SUGIHARA

IPC: B60W30/09 ,  B60W30/095 ,  B60W50/14 ,  B60W10/18 ,  B60R21/0134 ,  G01S15/36 ,  G01S15/58 ,  G01S15/931 ,  G06V20/58

Abstract: A control device to be applied to a vehicle equipped with an imaging device and a safety device is configured to, based on moving-object detection information detected from images captured by the imaging device, actuate the safety device for a moving object.
In the control device, a control unit is configured to, in response to any of certain information that it is certain that the object is a moving object and uncertain information indicating that it is not certain whether the object is a moving object being acquired as moving-object detection information, actuate the safety device based on a position of the object subjected to detection with the certain information or the uncertain information. An actuation region setting unit is configured to, when the moving-object detection information is the uncertain information, narrow an actuation region as compared to when the moving-object detection information is the certain information.

公开(公告)号：US20250003453A1

公开(公告)日：2025-01-02

申请号：US18828967

申请日：2024-09-09

Applicant: DENSO CORPORATION

Inventor： Yoshihiro KIDA ,  Takanobu KAWANO ,  Yusuke KIMURA ,  Sadahiro AKAMA ,  Harumi HORIHATA ,  Tetsuya OHMI ,  Yasuhiro KITAURA ,  Atsushi KOBAYASHI ,  Teppei MORIKAWA ,  Akihiro HANDA

IPC: F16C41/00 ,  G01D5/20 ,  G01L5/164

Abstract: A detection apparatus includes a base part, a bearing, a discoid rotating part for detection, and a displacement detection unit. The bearing has a first bearing member fixed to a rotating object, and a second bearing member fixed to the base part. The rotating part for detection is provided so as to rotate together with the first bearing member and extends radially outward of the bearing with respect to the first bearing member. The displacement detection unit is provided at a position in the base part which is radially away from the bearing and faces the rotating part for detection in an axial direction of the bearing. Moreover, the displacement detection unit is configured to output a voltage signal according to displacement of the rotating part for detection in the axial direction and displacement of the rotating part for detection in a direction perpendicular to the axial direction.

公开(公告)号：US20220176954A1

公开(公告)日：2022-06-09

申请号：US17652455

申请日：2022-02-24

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi KOBAYASHI ,  Yuki MINASE ,  Motonari OHBAYASHI ,  Masumi FUKUMAN

IPC: B60W30/095 ,  B60W40/04 ,  B60W40/105 ,  G06V20/58

Abstract: In a vehicle collision determination apparatus, a position calculation unit calculates a trajectory of a target that is a movement trajectory of the target, and calculates an entrainment trajectory of the vehicle that is a movement trajectory of the vehicle during a turn, and calculate a position of collision where a collision is likely to occur between the vehicle and the target based on the trajectory of the target and the entrainment trajectory of the vehicle. A time calculation unit calculates a time to collision (TTC) that is a time it takes for the target to reach the position of collision. In response to the time to collision being equal to or less than a predefined determination threshold, a risk determination unit determines that there is a risk of collision between the vehicle and the target.

公开(公告)号：US20170093392A1

公开(公告)日：2017-03-30

申请号：US15122438

申请日：2015-04-02

Applicant: DENSO CORPORATION

Inventor： Atsushi KOBAYASHI ,  Kiyoshi YAMAMOTO ,  Atsushi KANAMORI ,  Sadahiro AKAMA

IPC: H03K17/16 ,  H03K3/012 ,  H03K5/1534 ,  H03K17/28

CPC classification number: H03K17/162 ,  G11C29/023 ,  G11C29/028 ,  H03K3/012 ,  H03K5/1534 ,  H03K17/163 ,  H03K17/168 ,  H03K17/28 ,  H03K2005/00065 ,  H03K2005/00247 ,  H03K2005/00273

Abstract: A timing adjustment method for a drive circuit, including: a rise detector for a rise start when a voltage-driven semiconductor element is turned off; a timing signal output unit outputting a speed change timing signal after a set delay time has elapsed from the rise start; and a conduction controller for a conduction control terminal of the semiconductor element using the timing signal, comprises: defining an estimated terminal voltage of the conduction control terminal when a rise completion time elapses; increasing a delay time by a predetermined unit time, and changing the drive signal to a turning off level again, when the conduction control terminal doesn't fall below the estimated terminal voltage after the drive signal is changed to a turning off level before the level is inverted; and determining a delay time, when the conduction control terminal falls below the estimated terminal voltage initially, as a set value.

公开(公告)号：US20160352316A1

公开(公告)日：2016-12-01

申请号：US15117512

申请日：2015-03-12

Applicant: DENSO CORPORATION

Inventor： Sadahiro AKAMA ,  Kiyoshi YAMAMOTO ,  Atsushi KOBAYASHI ,  Atsushi KANAMORI

IPC: H03K17/04 ,  H03K17/687 ,  G05F1/565 ,  H03K17/567

CPC classification number: H03K17/0406 ,  G05F1/565 ,  H03K17/167 ,  H03K17/567 ,  H03K17/6871

Abstract: A drive device for controlling a power switching element includes: an on-side circuit that performs an on operation of the power switching element; and an off-side circuit that performs an off operation of the power switching element. The on-side circuit or the off-side circuit includes: multiple main MOS transistors; a sense MOS transistor that define a drain current of each main MOS transistor; and a sense current control circuit that controls a drain current of the sense MOS transistor to be constant; and a switch circuit that is connected to the gate of each main MOS transistor, and controls each main MOS transistor to turn on and off so as to switch a gate current in the power switching element.

Abstract translation: 用于控制功率开关元件的驱动装置包括：进行功率开关元件的接通动作的接线电路; 以及执行电源开关元件的断开操作的断开侧电路。 旁路电路或旁路电路包括：多个主MOS晶体管; 限定每个主MOS晶体管的漏极电流的感测MOS晶体管; 以及感测电流控制电路，其将所述读出MOS晶体管的漏极电流控制为恒定; 以及连接到每个主MOS晶体管的栅极的开关电路，并且控制每个主MOS晶体管导通和截止以便切换功率开关元件中的栅极电流。

公开(公告)号：US20160327411A1

公开(公告)日：2016-11-10

申请号：US15110759

申请日：2015-03-24

Applicant: DENSO CORPORATION

Inventor： Atsushi KOBAYASHI ,  Kenji CHIKUAN

IPC: G01D5/16

CPC classification number: G01D5/16 ,  G01D5/2457

Abstract: A rotation detection apparatus includes a signal detector and a determination circuit. The signal detector outputs a first signal and a second signal based on changes in respective resistance values of magnetoresistive element pairs. The first signal has a waveform corresponding to convexities and concavities of a rotor, while the second signal has a waveform differing in phase from the first signal. Upon receiving the first signal and second signal, the determination circuit compares each of the first signal and second signal against a binarization threshold value to generate a first binarized signal and a second binarized signal. The determination circuit permits output of the first binarized signal during one of a concavity period and a convexity period of the second binarized signal, and prohibits output of the first binarized signal during the other one of the concavity period and convexity period.

Abstract translation: 旋转检测装置包括信号检测器和确定电路。 信号检测器基于磁阻元件对的各个电阻值的变化输出第一信号和第二信号。 第一信号具有对应于转子的凸度和凹部的波形，而第二信号具有与第一信号相位相差的波形。 在接收到第一信号和第二信号时，确定电路将第一信号和第二信号中的每一个与二值化阈值进行比较，以产生第一二值化信号和第二二值化信号。 确定电路允许在第二二值化信号的凹陷周期和凸部周期之一期间输出第一二进制化信号，并且在凹陷周期和凸部周期的另一个期间禁止第一二值化信号的输出。

公开(公告)号：US20160131538A1

公开(公告)日：2016-05-12

申请号：US14898970

申请日：2014-06-17

Applicant: DENSO CORPORATION

Inventor： Atsushi KOBAYASHI

IPC: G01K7/16

CPC classification number: G01K7/16 ,  G01K7/01 ,  G01K2219/00

Abstract: To provide a high accuracy temperature detection device, a D/A conversion circuit includes a ladder network, constant current circuits and switch circuits. A temperature sensing circuit such as a diode is kept at a threshold temperature of a protecting operation against overheating and the switch circuits are switched according to a predetermined adjustment data value such that a temperature detection voltage is in a prescribed range. Since each of the switch circuits connects between corresponding one of the constant current circuits and a common terminal while disconnecting between the corresponding one of the constant current circuits and corresponding one of current terminals, an electric current flowing to the temperature sensing circuit is constant regardless of the adjustment data value and a correction resolution of the temperature detection voltage is constant.

Abstract translation: 为了提供高精度温度检测装置，D / A转换电路包括梯形网络，恒流电路和开关电路。 诸如二极管的温度检测电路保持在防止过热的保护操作的阈值温度，并且根据预定的调节数据值切换开关电路，使得温度检测电压在规定范围内。 由于每个开关电路在相应的一个恒流电路和公共端子之间连接，同时断开相应的一个恒流电路和相应的一个电流端子，所以流向温度感测电路的电流是恒定的，而不管 调整数据值和温度检测电压的校正分辨率是恒定的。

公开(公告)号：US20250076083A1

公开(公告)日：2025-03-06

申请号：US18948885

申请日：2024-11-15

Applicant: DENSO CORPORATION

Inventor： Yuki MATSUMOTO ,  Tsukasa KONO ,  Atsushi KOBAYASHI ,  Tetsuya OHMI ,  Michihiro MAKITA ,  Naoki WATANABE ,  Sukhwa JUNG

IPC: G01D5/14 ,  G01D5/16

Abstract: Magnets are arranged at intervals along a stroke direction with an interposed space. Magnetic pole surfaces of adjacent ones of the magnets have opposite poles. A detector is arranged with a gap in a gap direction against a magnetic pole surface of each of the magnets and acquires a sine signal and a cosine signal as detection signals of phases corresponding to the positions of the magnets, based on a change in a magnetic field received from the magnets according to movement of the detector relative to the detection object in the stroke direction. A signal processor acquires the sine signal and the cosine signal from the detector, generates, based on the sine signal and the cosine signal, an arctangent signal corresponding to a stroke amount of the detection object relative to the detector, and acquires the arctangent signal as a position signal.

公开(公告)号：US20230179197A1

公开(公告)日：2023-06-08

申请号：US18160721

申请日：2023-01-27

Applicant: DENSO CORPORATION

Inventor： Atsushi KOBAYASHI

IPC: H03K17/082 ,  H03K17/60

CPC classification number: H03K17/0826 ,  H03K17/60

Abstract: A gate drive device for a switching element includes: a surge voltage detection circuit for detecting a surge voltage when the switching element is turned off; a delay circuit for outputting a timing signal when a predetermined delay time elapses after a turn-off start signal is input; and a driving current output unit for starting to supply a first gate drive current to the switching element when the turn-off start signal is input, and for starting to supply a second gate drive current to the switching element when the delay circuit outputs the timing signal. The delay circuit is configured to change and set the delay time when the surge voltage is different from a target value.