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公开(公告)号：US20200307677A1
公开(公告)日：2020-10-01
申请号：US16823745
申请日：2020-03-19
Applicant: DENSO CORPORATION
Inventor： Nao UEMATSU
Abstract: A detection unit has a rotation angle sensor including at least three detection elements detecting a change of physical quantity and outputting angle signals respectively corresponding to detection values of the respective detection elements. The detection unit also has a controller including an abnormality monitor monitoring the angle signals and identifying the respective angle signals either as a normal signal or an abnormal signal. The controller either outputs a value corresponding to at least one of two normal signals when two or more normal signals are identified or stops output regarding the detection signal when two or more normal signals are not identified.
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公开(公告)号：US20200309566A1
公开(公告)日：2020-10-01
申请号：US16823771
申请日：2020-03-19
Applicant: DENSO CORPORATION
Inventor： Toshihiro FUJITA , Nao UEMATSU , Katsuhiko HAYASHI
Abstract: A control unit includes a detection device that includes: a multi-turn detection unit capable of continuing detection of a rotation position of multiple rotations of a steering shaft driven by a motor without power supply from outside; a position detector detecting the rotation position in one rotation of the rotor; a count calculator calculating multiple rotation position information related to the rotation position of multiple rotations based on a detection value of the multi-turn detection unit; and an angle calculator calculating a motor rotation angle related to the rotation position in one rotation based on a detection value of the position detector. The multi-turn detection unit is disposed at a position different from the motor, thereby detection of the rotation position of multiple rotations is continuable even when a supply of electric power from outside is interrupted.
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公开(公告)号：US20230420057A1
公开(公告)日：2023-12-28
申请号：US18463161
申请日：2023-09-07
Applicant: DENSO CORPORATION
Inventor： Nao UEMATSU
CPC classification number: G11C16/16 , G11C16/102 , G11C16/3418
Abstract: A memory control method includes: writing data in at least one page that is a part of a plurality of logical sectors; erasing the data in at least one of the plurality of logical sectors; and controlling an operation for write and erasure in a memory to which an erasure voltage is applied in a physical sector including the plurality of logical sectors; and performing batch erasure for each of a plurality of logically divided physical sectors obtained by logically dividing the physical sector into at least two sectors.
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