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公开(公告)号：US11597434B2
公开(公告)日：2023-03-07
申请号：US16849114
申请日：2020-04-15
发明人： Masaharu Yamashita , Atsushi Sato , Masataka Okuda , Yosuke Yamashita , Shintaro Takayama , Shunsuke Hiromasa , Toshiyuki Mikida , Shoji Kubota , Yuji Fujita , Kenichi Abe , Toshimitsu Sakai
摘要： An actuator that applies force to a member associated with steering, and a control device that controls the actuator, have duplex configuration. First and second control devices compute the same controlled variable as first and second controlled variables, respectively. In a normal mode, the control device controls the actuator according to the first controlled variable. The first and second control devices send and receive respectively computed controlled variables to and from each other via communications. When a discrepancy arises between the first and second controlled variables, or an abnormality occurs in communications between the first and second control devices, the operating mode is switched from the normal mode to an independent mode. In the independent mode, the first and second control devices control the first and second actuators, according to the first and second controlled variables, respectively.
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公开(公告)号：US11565746B2
公开(公告)日：2023-01-31
申请号：US16849114
申请日：2020-04-15
发明人： Masaharu Yamashita , Atsushi Sato , Masataka Okuda , Yosuke Yamashita , Shintaro Takayama , Shunsuke Hiromasa , Toshiyuki Mikida , Shoji Kubota , Yuji Fujita , Kenichi Abe , Toshimitsu Sakai
摘要： An actuator that applies force to a member associated with steering, and a control device that controls the actuator, have duplex configuration. First and second control devices compute the same controlled variable as first and second controlled variables, respectively. In a normal mode, the control device controls the actuator according to the first controlled variable. The first and second control devices send and receive respectively computed controlled variables to and from each other via communications. When a discrepancy arises between the first and second controlled variables, or an abnormality occurs in communications between the first and second control devices, the operating mode is switched from the normal mode to an independent mode. In the independent mode, the first and second control devices control the first and second actuators, according to the first and second controlled variables, respectively.
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公开(公告)号：US20200331522A1
公开(公告)日：2020-10-22
申请号：US16849114
申请日：2020-04-15
发明人： Masaharu Yamashita , Atsushi Sato , Masataka Okuda , Yosuke Yamashita , Shintaro Takayama , Shunsuke Hiromasa , Toshiyuki Mikida , Shoji Kubota , Yuji Fujita , Kenichi Abe , Toshimitsu Sakai
摘要： An actuator that applies force to a member associated with steering, and a control device that controls the actuator, have duplex configuration. First and second control devices compute the same controlled variable as first and second controlled variables, respectively. In a normal mode, the control device controls the actuator according to the first controlled variable. The first and second control devices send and receive respectively computed controlled variables to and from each other via communications. When a discrepancy arises between the first and second controlled variables, or an abnormality occurs in communications between the first and second control devices, the operating mode is switched from the normal mode to an independent mode. In the independent mode, the first and second control devices control the first and second actuators, according to the first and second controlled variables, respectively.
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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
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.
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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
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.
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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
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.
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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
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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公开(公告)号：US20160339945A1
公开(公告)日：2016-11-24
申请号：US15158283
申请日：2016-05-18
申请人： DENSO CORPORATION
发明人： Takaharu Kozawa , Shuji Kuramitsu , Koichi Nakamura , Katsuhiko Hayashi , Masaya Taki , Toshimitsu Sakai
IPC分类号： B62D5/04
CPC分类号： B62D5/049 , B62D5/0463 , G01L3/104 , G01L25/003
摘要： A sensor device including a first output circuit generating and outputting a first output signal that is generated as a signal sequence from a first main signal based on a detection value of a first main sensor element to a first sub signal based on a detection value of a first sub sensor element, a second output circuit generating and outputting a second output signal that is generated as a signal sequence from a second main signal based on a detection value of a second main sensor element to a second sub signal based on a detection value of a second sub sensor element, and an abnormality determiner determining abnormality of the device based on the first output signal and the second output signal.
摘要翻译： 一种传感器装置，包括：第一输出电路，其基于第一主传感器元件的检测值，基于第一主传感器元件的检测值，生成并输出作为来自第一主信号的信号序列产生的第一输出信号 第一子传感器元件，第二输出电路，基于第二主传感器元件的检测值，基于第二主信号的检测值，生成并输出作为来自第二主信号的信号序列产生的第二输出信号， 第二子传感器元件和异常判定器，其基于第一输出信号和第二输出信号来确定装置的异常。
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公开(公告)号：US11529990B2
公开(公告)日：2022-12-20
申请号：US16298224
申请日：2019-03-11
申请人： DENSO CORPORATION
IPC分类号： B62D5/04
摘要： An ECU, which is a signal control apparatus, has a plurality of control units, which control one same motor. Steering angle calculation units acquire sensor signals from the angle sensors provided corresponding to the steering angle calculation units, respectively, and calculate the steering angles in correspondence to the sensor signals. The angle FB units perform the angle FB control based on the angle differences, which are between the target angle and the steering angle and between the target angle and the steering angle, respectively. In the angular FB unit of at least one of the control units, the angular feedback control is performed using the angle difference, which is subjected to the correction processing to reduce the error between the detection angle of the own system and the detection angle of the other system calculated by the steering angle calculation unit of the other control unit.
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公开(公告)号：US11518435B2
公开(公告)日：2022-12-06
申请号：US16296851
申请日：2019-03-08
申请人： DENSO CORPORATION
摘要： An ECU includes a plurality of motor driving circuits for driving at least one motor, a plurality of computers and a plurality of clock circuits. A first computer, which is at a synchronization signal transmission-side, transmits a synchronization signal to a second computer, which is at a synchronization signal reception-side. The first computer and the second computer execute a plurality of specific periodic processes, which are processes executed at cycle periods (for example, 200 μs, 400 μs) of different natural number multiples of a cycle period (for example, 200 μs) of the synchronization signal and need be synchronized. Each timing of the plurality of specific periodic processes is determined based on one synchronization signal.
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