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公开(公告)号：US20190389506A1
公开(公告)日：2019-12-26
申请号：US16481190
申请日：2017-03-07
发明人： Yuya TSUCHIMOTO , Isao KEZOBO , Yuji TAKATSUKA , Akira FURUKAWA
摘要： An electric power steering apparatus includes: a torque sensor configured to detect a steering torque of a driver; a motor configured to assist in a steering force of the driver; a rotation angle estimation unit configured to estimate a rotation angle of the motor to output an estimated angle; a correction signal calculation unit configured to calculate a correction signal based on the steering torque; a frequency separation unit configured to separate the estimated angle into a first frequency component and a second frequency component; an estimated angle correction unit configured to calculate, as a control angle, a value obtained by adding a second-frequency-component corrected signal, which is obtained by correcting the second frequency component based on the correction signal, to the first frequency component; and an electric power supply unit configured to supply electric power to the motor based on the control angle.
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公开(公告)号：US20160221602A1
公开(公告)日：2016-08-04
申请号：US15022269
申请日：2013-12-02
发明人： Yuji TAKATSUKA , Sadaaki KAMEI
CPC分类号： B62D6/02 , B62D5/0463 , B62D5/0472
摘要： An electric power steering control device, in which a control response capability in a low speed region can be improved, and a noise and a vibration can be suppressed, is provided.Although a control amount setting means of the electric power steering control device performs a PI control computing in accordance with a deviation between a target current and an actual current, the control amount setting means includes a gain setting means 12 which varies a gain of a proportion term in accordance with the deviation and a vehicle speed, and a control amount is computed in an integration term by using a predetermined constant gain.
摘要翻译： 提供了一种能够提高低速区域的控制响应能力并且可以抑制噪声和振动的电动助力转向控制装置。 尽管电动转向控制装置的控制量设定装置根据目标电流和实际电流之间的偏差执行PI控制计算，但是控制量设定装置包括：增益设定装置12，其使比例增益变化 并且通过使用预定的恒定增益在积分项中计算控制量。
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公开(公告)号：US20200062297A1
公开(公告)日：2020-02-27
申请号：US16604015
申请日：2017-05-18
发明人： Yuya TSUCHIMOTO , Isao KEZOBO , Akira FURUKAWA , Yuji TAKATSUKA
摘要： An electric power steering apparatus including: a steering torque detector to detect a steering torque of a driver; a motor to assist a steering force of the driver; an estimated speed calculator to calculate an estimated speed, which is an estimated value of a rotation speed of the motor; an estimated speed corrector to correct the estimated speed based on the steering torque; an estimated angle calculator to calculate an estimated angle of the motor by integrating the estimated speed after the correction; and an electric power supply to supply electric power to the motor based on the estimated angle, wherein the estimated speed corrector corrects the estimated speed when a determination signal, which is based on a value obtained by removing a frequency component of steering of the driver from a derivative of the steering torque, the steering torque, and the estimated speed have the same signs.
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公开(公告)号：US20180001924A1
公开(公告)日：2018-01-04
申请号：US15542701
申请日：2015-05-08
IPC分类号： B62D5/04 , H02P29/032 , B62D6/10 , B60R16/03
CPC分类号： H02P29/00 , B60R16/03 , B62D5/0457 , B62D5/0481
摘要： A shortening of an initial diagnosis time is achieved, even after an elapse of a predetermined delay time from an ignition switch being switched to an off-state. After the ignition switch is switched to an off-state after an operation of a control device, which drives an electric motor that applies steering assistance force to a steering system, diagnosis of a power supply circuit that supplies power to the control device is carried out, and a diagnosis item to be implemented in a succeeding initial diagnosis is determined based on a result of the diagnosis.
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