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1. 发明授权

US11554809B2 Steering angle detection device and electric power steering device using same 有权
公开(公告)号：US11554809B2
公开(公告)日：2023-01-17
申请号：US16654307
申请日：2019-10-16
申请人： DENSO CORPORATION
发明人： Atsuko Oka , Shuji Kuramitsu , Koichi Nakamura , Yuki Watanabe , Toshihiro Fujita , Takaharu Kozawa , Shuhei Miyachi , Katsuhiko Hayashi , Masaya Taki , Toshimitsu Sakai
IPC分类号： B62D15/02 , B60R16/027 , B62D5/04
摘要： 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.

2. 发明授权

US10351166B2 Sensor device and electric power steering apparatus using same 有权
公开(公告)号：US10351166B2
公开(公告)日：2019-07-16
申请号：US15158207
申请日：2016-05-18
申请人： DENSO CORPORATION
发明人： Koichi Nakamura , Katsuhiko Hayashi , Takaharu Kozawa , Shuji Kuramitsu , Masaya Taki , Toshimitsu Sakai
IPC分类号： B62D5/04 , G01L3/10 , G01R33/04 , B62D1/04 , B62D6/10 , G01R33/07 , G01D5/244
摘要： 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.

3. 发明授权

US10232879B2 Communication system 有权
公开(公告)号：US10232879B2
公开(公告)日：2019-03-19
申请号：US15178425
申请日：2016-06-09
申请人： DENSO CORPORATION
发明人： Masaya Taki , Toshimitsu Sakai , Kouichi Nakamura , Shuji Kuramitsu , Takaharu Kozawa , Katsuhiko Hayashi
IPC分类号： B62D15/02 , B62D6/00 , H04L7/00 , B62D5/04 , H04L29/08
摘要： 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.

4. 发明申请

US20170072991A1 SENSOR APPARATUS AND ELECTRIC POWER STEERING APPARATUS USING THE SAME 审中-公开
标题翻译：传感器装置和电动转向装置
公开(公告)号：US20170072991A1
公开(公告)日：2017-03-16
申请号：US15256277
申请日：2016-09-02
申请人： DENSO CORPORATION
发明人： Katsuhiko Hayashi , Takaharu Kozawa , Shuji Kuramitsu , Kouichi Nakamura , Masaya Taki , Toshimitsu Sakai
IPC分类号： B62D5/04 , G01L3/10
CPC分类号： B62D5/049 , B62D5/0463 , G01L3/101 , G01L5/221 , G01L25/003
摘要： 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.
摘要翻译：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。

5. 发明申请

US20170029016A1 SENSOR DEVICE AND ELECTRIC POWER STEERING DEVICE USING SAME 审中-公开
标题翻译：传感器装置和电动转向装置
公开(公告)号：US20170029016A1
公开(公告)日：2017-02-02
申请号：US15222691
申请日：2016-07-28
申请人： DENSO CORPORATION
发明人： Takaharu Kozawa , Shuji Kuramitsu , Kouichi Nakamura , Masaya Taki , Toshimitsu Sakai , Katsuhiko Hayashi
IPC分类号： B62D5/04 , G01L3/10 , B62D6/10
CPC分类号： B62D5/049 , B62D5/0463 , B62D6/10 , G01D3/08 , G01L3/101 , G01L25/00
摘要： 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.
摘要翻译：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。

6. 发明申请

US20160339946A1 SENSOR DEVICE AND ELECTRIC POWER STEERING APPARATUS USING SAME 审中-公开
标题翻译：传感器装置和电动转向装置使用它
公开(公告)号：US20160339946A1
公开(公告)日：2016-11-24
申请号：US15158189
申请日：2016-05-18
申请人： DENSO CORPORATION
发明人： Shuji Kuramitsu , Katsuhiko Hayashi , Takaharu Kozawa , Koichi Nakamura , Masaya Taki , Toshimitsu Sakai
IPC分类号： B62D5/04
摘要： 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.
摘要翻译：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。

7. 发明授权

US10384712B2 Sensor apparatus and electric power steering apparatus using the same 有权
公开(公告)号：US10384712B2
公开(公告)日：2019-08-20
申请号：US15256277
申请日：2016-09-02
申请人： DENSO CORPORATION
发明人： Katsuhiko Hayashi , Takaharu Kozawa , Shuji Kuramitsu , Kouichi Nakamura , Masaya Taki , Toshimitsu Sakai
IPC分类号： B62D5/04 , G01L3/10 , G01L5/22 , G01L25/00
摘要： 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.

8. 发明授权

US10343714B2 Sensor device 有权
公开(公告)号：US10343714B2
公开(公告)日：2019-07-09
申请号：US15220001
申请日：2016-07-26
申请人： DENSO CORPORATION
发明人： Koutarou Nakashima , Shuji Kuramitsu , Kouichi Nakamura , Masaya Taki , Toshimitsu Sakai , Takaharu Kozawa , Katsuhiko Hayashi
IPC分类号： B62D5/04 , G01L3/10 , G01L25/00
摘要： A sensor device includes sensors and an Electronic Control Unit (ECU). The sensors include sensor elements, a signal comparator, and a signal transmitter. The signal comparator compares a first main detection value from one of the sensor elements, and a first sub detection value from the other of the sensor elements. When the first main detection value matches the first sub detection value, the signal transmitter generates and transmits an output signal that includes a first main signal corresponding to the first main detection value without including a first sub signal corresponding to the first sub detection value. In such manner, the responsiveness of the sensor device may be improved, without deteriorating a reliability of the output signals from the sensor sections.

9. 发明授权

US10328972B2 Rotation detecting apparatus and electric power steering apparatus using the same 有权
公开(公告)号：US10328972B2
公开(公告)日：2019-06-25
申请号：US15479066
申请日：2017-04-04
申请人： DENSO CORPORATION
发明人： Toshihiro Fujita , Hideki Kabune , Katsuhiko Hayashi , Takaharu Kozawa , Shuhei Miyachi , Koichi Nakamura , Yuki Watanabe , Atsuko Oka , Shuji Kuramitsu , Toshimitsu Sakai , Masaya Taki
IPC分类号： B62D15/02 , B62D5/04 , G01D5/14 , G01D18/00
摘要： 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.

10. 发明授权

US10077069B2 Sensor device and electric power steering device using same 有权
公开(公告)号：US10077069B2
公开(公告)日：2018-09-18
申请号：US15238356
申请日：2016-08-16
申请人： DENSO CORPORATION
发明人： Shuji Kuramitsu , Katsuhiko Hayashi , Takaharu Kozawa , Kouichi Nakamura , Masaya Taki , Toshimitsu Sakai
IPC分类号： B62D5/04 , B62D6/10 , G01L5/22
CPC分类号： B62D5/0484 , B62D5/0463 , B62D5/049 , B62D6/10 , G01L5/22 , G01L5/221 , G01L25/003
摘要： A sensor device includes a main sensor, a sub sensor, and an Electronic Control Unit (ECU). The ECU has a torque calculator that sets, as a steering torque, a main steering torque that is calculated based on a main sensor signal when a main output signal is normal. During a transition period between an abnormality detection and an abnormality establishment regarding the main output signal, the torque calculator calculates the steering torque based on (i) a sub steering torque calculated based on a sub sensor signal and (ii) a prior-to-abnormality-detection main steering torque. In such manner, even when abnormality is detected in a part of the sensor signals, a fluctuation of the steering torque due to, or accompanying, the switching of the steering torque calculation to a normal signal only calculation is prevented.

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