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公开(公告)号：US11554809B2
公开(公告)日：2023-01-17
申请号：US16654307
申请日：2019-10-16
Applicant: DENSO CORPORATION
Inventor： Atsuko Oka , Shuji Kuramitsu , Koichi Nakamura , Yuki Watanabe , Toshihiro Fujita , Takaharu Kozawa , Shuhei Miyachi , Katsuhiko Hayashi , Masaya Taki , Toshimitsu Sakai
IPC: B62D15/02 , B60R16/027 , B62D5/04
Abstract: A steering angle detection device includes plural control units and plural steering angle sensors. Each control unit is configured to transmit steering angle information related to a steering angle of a vehicle to an external device and transmit and receive information mutually therebetween. Each steering angle sensor is provided in correspondence to each control unit and configured to output a sensor signal corresponding to a detection value of a change in the steering angle to the corresponding control unit. One of the control units transmits, as a transmission control unit, the steering angle information to the external device at one transmission timing.
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公开(公告)号：US10351166B2
公开(公告)日：2019-07-16
申请号：US15158207
申请日：2016-05-18
Applicant: DENSO CORPORATION
Inventor： Koichi Nakamura , Katsuhiko Hayashi , Takaharu Kozawa , Shuji Kuramitsu , Masaya Taki , Toshimitsu Sakai
Abstract: A sensor device includes a first sensor section and a second sensor section, and the first sensor section has sensor elements and an output circuit for generating and transmitting an output signal including signals that respectively correspond to sensing values from the two sensor elements, and the second sensor section has sensor elements and an output circuit for generating and transmitting an output signal including signals that respectively correspond to sensing values from the two sensor elements. The sensor device further includes an ECU that has an abnormality determiner for determining abnormality of the sensor sections, and a calculator, thereby enabling a continuation of abnormality monitoring of a normal sensor section, even when a part of the sensor sections is abnormal.
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公开(公告)号：US10232879B2
公开(公告)日：2019-03-19
申请号：US15178425
申请日：2016-06-09
Applicant: DENSO CORPORATION
Inventor： Masaya Taki , Toshimitsu Sakai , Kouichi Nakamura , Shuji Kuramitsu , Takaharu Kozawa , Katsuhiko Hayashi
Abstract: A communication system includes a sensor apparatus, which includes sensing elements and a transmission circuit, and a microcomputer, which includes a reception circuit, a difference calculator, and a differential calculator. The transmission circuit shifts a transmission time point of one of sensor signals including sensor value detected by one of the sensing elements by a predetermined period with respect to a transmission time point of another one of sensor signals including sensor value detected by another one of the sensing elements. The predetermined period is set shorter than a transmission cycle of the transmission circuit. The difference calculator calculates a difference value so that an offset error among the sensing elements is compensated or a fluctuation caused by a variation in slopes of output characteristics of the sensing elements is reduced.
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公开(公告)号：US20170072991A1
公开(公告)日：2017-03-16
申请号：US15256277
申请日：2016-09-02
Applicant: DENSO CORPORATION
Inventor： Katsuhiko Hayashi , Takaharu Kozawa , Shuji Kuramitsu , Kouichi Nakamura , Masaya Taki , Toshimitsu Sakai
CPC classification number: B62D5/049 , B62D5/0463 , G01L3/101 , G01L5/221 , G01L25/003
Abstract: If abnormalities of the sensor part are detected, the power-source control section temporarily stops the electric power supply from the sensor power source to the sensor part so that the sensor power source voltage Vs which is the voltage between the sensor power source and the sensor part falls. In addition, after electric power supply to the sensor part resumes, and the sensor part is recovered from the abnormalities, then, the power source control section continues the electric power supply from the sensor power source to the sensor part. When the sensor part is not recovered from the abnormalities, the power source control section stops the electric power supply from the sensor power source to the sensor part.
Abstract translation: 如果检测到传感器部的异常，则电源控制部临时停止从传感器电源向传感器部的电力供给，使得作为传感器电源与传感器之间的电压的传感器电源电压Vs 部分下降。 此外，在传感器部分的电力供应恢复并且传感器部分从异常中恢复之后，电源控制部分继续从传感器电源向传感器部分供电。 当传感器部分没有从异常中恢复时，电源控制部分停止从传感器电源向传感器部分的电力供应。
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公开(公告)号：US20170029016A1
公开(公告)日：2017-02-02
申请号：US15222691
申请日：2016-07-28
Applicant: DENSO CORPORATION
Inventor： Takaharu Kozawa , Shuji Kuramitsu , Kouichi Nakamura , Masaya Taki , Toshimitsu Sakai , Katsuhiko Hayashi
Abstract: A sensor device includes two sensor parts and an ECU. An output division of one of the two sensor parts stops output of an output signal when a detected internal abnormality is a first abnormality. Further, when the detected internal abnormality is a second abnormality that is different from the first abnormality, the output division controls an abnormality signal to take a value indicative of the second abnormality. An abnormality determiner determines either of a signal obtainment abnormality or the first abnormality of the sensor part when the output signal is not obtained from the one of the sensor parts, or determines the second abnormality of the one of the sensor parts when the obtained output signal includes the abnormality signal having a value indicative of the second abnormality. Such determination, thus, enables the abnormality determiner to classify an abnormality caused in the sensor parts.
Abstract translation: 传感器装置包括两个传感器部件和一个ECU。 当检测到的内部异常是第一异常时，两个传感器部分中的一个的输出分割停止输出信号的输出。 此外，当检测到的内部异常是与第一异常不同的第二异常时，输出分配控制异常信号以取得表示第二异常的值。 当没有从传感器部分获得输出信号时，异常确定器确定信号获取异常或传感器部分的第一异常，或者当所获得的输出信号 包括具有表示第二异常的值的异常信号。 因此，这种确定使得异常确定器能够分类在传感器部件中引起的异常。
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Patent Agency Ranking
公开(公告)号：US20160339946A1
公开(公告)日：2016-11-24
申请号：US15158189
申请日：2016-05-18
Applicant: DENSO CORPORATION
Inventor： Shuji Kuramitsu , Katsuhiko Hayashi , Takaharu Kozawa , Koichi Nakamura , Masaya Taki , Toshimitsu Sakai
IPC: B62D5/04
Abstract: A sensor device includes a sensor section having a plurality of sensor elements sensing a physical quantity regarding a magnetic flux collecting module, an output circuit generating and outputting an output signal including data signals respectively corresponding to sensing values from the sensor elements, and an ECU obtaining the output signal. The ECU includes an abnormality determiner identifying an abnormal sensor element. When at least two of the plurality of sensor sections respectively have at least one normal sensor element, a sub-sensor section transmits the output signal therefrom to the ECU at a shifted output timing from an output timing of the output signal from a main sensor section. The amount of such a shift of the output timing is shorter than one signal cycle of the output signal.
Abstract translation: 传感器装置包括传感器部分，其具有感测关于磁通量收集模块的物理量的多个传感器元件，输出电路产生并输出分别对应于来自传感器元件的感测值的数据信号的输出信号，以及获得 输出信号。 ECU包括识别异常传感器元件的异常判定器。 当多个传感器部分中的至少两个分别具有至少一个正常的传感器元件时，副传感器部分将输出信号从主传感器部分的输出信号的输出定时以偏移的输出定时传送到ECU 。 输出定时的这种偏移的量比输出信号的一个信号周期短。
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公开(公告)号：US10759470B2
公开(公告)日：2020-09-01
申请号：US15158189
申请日：2016-05-18
Applicant: DENSO CORPORATION
Inventor： Shuji Kuramitsu , Katsuhiko Hayashi , Takaharu Kozawa , Koichi Nakamura , Masaya Taki , Toshimitsu Sakai
Abstract: A sensor device includes a sensor section having a plurality of sensor elements sensing a physical quantity regarding a magnetic flux collecting module, an output circuit generating and outputting an output signal including data signals respectively corresponding to sensing values from the sensor elements, and an ECU obtaining the output signal. The ECU includes an abnormality determiner identifying an abnormal sensor element. When at least two of the plurality of sensor sections respectively have at least one normal sensor element, a sub-sensor section transmits the output signal therefrom to the ECU at a shifted output timing from an output timing of the output signal from a main sensor section. The amount of such a shift of the output timing is shorter than one signal cycle of the output signal.
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公开(公告)号：US20180229761A1
公开(公告)日：2018-08-16
申请号：US15891720
申请日：2018-02-08
Applicant: DENSO CORPORATION
Inventor： Toshihiro Fujita , Takaharu Kozawa , Shuhei Miyachi , Katsuhiko Hayashi , Shuji Kuramitsu , Koichi Nakamura , Yuki Watanabe , Atsuko Oka , Masaya Taki , Toshimitsu Sakai
CPC classification number: B62D5/046 , B62D5/0406 , B62D5/0487 , B62D5/049 , B62D15/0235 , G01B7/30 , G01D3/08 , G01D5/145 , G01L5/221 , H02P6/16 , H02P27/06 , H02P29/0241
Abstract: In a rotation detecting apparatus, while a switch is in an on state so that electrical power is supplied from a power source to a controller via the switch, the controller receives, as a first output signal, an output signal output from an output unit of a first rotation sensor, and receives, as a second output signal, an output signal output from an output unit of the second rotation sensor. The first output signal includes at least the first rotational information and the second rotational information based on the first rotation sensor, and the second output signal includes at least the first rotational information and the second rotational information based on the second rotation sensor. The controller determines whether there is a malfunction in each of the first and second rotation sensors as a function of the first output signal and the second output signal.
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公开(公告)号：US20170291640A1
公开(公告)日：2017-10-12
申请号：US15479066
申请日：2017-04-04
Applicant: DENSO CORPORATION
Inventor： Toshihiro Fujita , Hideki Kabune , Katsuhiko Hayashi , Takaharu Kozawa , Shuhei Miyachi , Koichi Nakamura , Yuki Watanabe , Atsuko Oka , Shuji Kuramitsu , Toshimitsu Sakai , Masaya Taki
CPC classification number: B62D15/0235 , B62D5/0409 , B62D5/049 , B62D15/021 , G01D5/14 , G01D5/145 , G01D18/00
Abstract: In a rotation detecting apparatus, a sensor includes a sensor element outputting a measurement value representing rotation of a detection target, and a circuit module. The circuit module includes a rotational angle calculator calculating, based on the measurement value, rotational angle information indicative of a rotational angle of the detection target. The rotational angle calculator generates a rotational angle signal including the rotational angle information. The circuit module includes a rotation number calculator calculating, based on the measurement value, rotation number information representing the number of rotations of the detection target. The rotation number calculator generates a rotation number signal including the rotation number information. An output unit outputs, as an output signal, a series of the rotational angle signal and the rotation number signal. A controller obtains the output signal from the communicator, and calculates, based on the output signal, information about the rotation of the detection target.
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公开(公告)号：US20160362137A1
公开(公告)日：2016-12-15
申请号：US15178425
申请日：2016-06-09
Applicant: DENSO CORPORATION
Inventor： Masaya Taki , Toshimitsu Sakai , Kouichi Nakamura , Shuji Kuramitsu , Takaharu Kozawa , Katsuhiko Hayashi
CPC classification number: B62D15/025 , B62D5/0457 , B62D5/0481 , B62D5/0484 , B62D6/002 , H04L7/0041 , H04L67/12 , Y04S40/18
Abstract: A communication system includes a sensor apparatus, which includes sensing elements and a transmission circuit, and a microcomputer, which includes a reception circuit, a difference calculator, and a differential calculator. The transmission circuit shifts a transmission time point of one of sensor signals including sensor value detected by one of the sensing elements by a predetermined period with respect to a transmission time point of another one of sensor signals including sensor value detected by another one of the sensing elements. The predetermined period is set shorter than a transmission cycle of the transmission circuit. The difference calculator calculates a difference value so that an offset error among the sensing elements is compensated or a fluctuation caused by a variation in slopes of output characteristics of the sensing elements is reduced.
Abstract translation: 通信系统包括传感器装置，其包括感测元件和发送电路，以及包括接收电路，差分计算器和差分计算器的微计算机。 传输电路将包括感测元件之一检测到的传感器值的传感器信号之一的传输时间点相对于传感器信号的另一个的传输时间点移动预定的周期，包括由传感器中的另一个检测到的传感器值 元素。 预定周期被设定为短于发送电路的发送周期。 差分计算器计算差值，使得感测元件之间的偏移误差被补偿，或者由感测元件的输出特性的斜率的变化引起的波动减小。
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