-
公开(公告)号：US20230231498A1
公开(公告)日：2023-07-20
申请号：US18186858
申请日：2023-03-20
Applicant: DENSO CORPORATION
Inventor： YUSUKE SHIBATA , TAKASHI SUZUKI
IPC: H02P5/68 , B60L50/51 , H02M7/5395
CPC classification number: H02P5/68 , B60L50/51 , H02M7/5395
Abstract: A motor control device drives first and second motors for outputting torque in braking or non-braking direction in a vehicle brake device, includes: an electric power converter that includes first to third legs having positive and negative switch elements; and a control unit. When the control unit energizes from the positive switch element of the first or third leg to the negative switch element of the second leg, the first and second motors output the torque in a same direction. When an absolute value of current flowing or estimated to flow in at least one of the first motor and the second motor exceeds a current threshold, the control unit drives the positive and negative switch elements of the second leg.
-
公开(公告)号：US20230116678A1
公开(公告)日：2023-04-13
申请号：US18065470
申请日：2022-12-13
Applicant: DENSO CORPORATION
Inventor： TAKASHI SUZUKI
Abstract: A motor control device for a motor including first and second winding sets, includes: first and second inverters; and a control unit that controls the first and second inverters by differentiating a magnitude of current flowing through the first winding set and a magnitude of current flowing through the second winding set, or by restricting an output voltage of the second inverter so as to reduce a first output voltage from the first inverter to the first winding set when the first output voltage is higher than a first upper limit voltage.
-
公开(公告)号：US20230079985A1
公开(公告)日：2023-03-16
申请号：US18053692
申请日：2022-11-08
Applicant: DENSO CORPORATION
Inventor： TAKASHI SUZUKI
Abstract: A control device controls a multi-phase rotating machine having two multi-phase winding sets of two systems and outputting a torque to a common output shaft. The control device includes: two electric power converters individually connected to two power supplies and supplying an AC electric power to the multi-phase winding sets; and a control unit. The power supplies includes a charge side power supply and a discharge side power supply. The control unit energizes a charge side system and a discharge side system with reciprocal currents, and executes a charge operation from the discharge side power supply to the charge side power supply via the multi-phase rotating machine.
-
Patent Agency Ranking
公开(公告)号：US20230064290A1
公开(公告)日：2023-03-02
申请号：US18049440
申请日：2022-10-25
Applicant: DENSO CORPORATION
Inventor： TAKASHI SUZUKI
Abstract: A rotating machine control device drives a multi-phase rotating machine and a direct-current rotating machine. The control unit controls an operation of an inverter switching element and a direct current rotating machine switch in a drive circuit of the multi-phase rotating machine and the direct current rotating machine. The control unit has an anomaly detection unit for detecting an anomaly in the multi-phase power converter or the multi-phase rotating machine, or an anomaly in a direct current rotating machine switch or the direct current rotating machine. The control unit changes the switching operation of the inverter switching element and the direct current rotating machine switch according to the anomaly.
-
公开(公告)号：US20230271644A1
公开(公告)日：2023-08-31
申请号：US18302658
申请日：2023-04-18
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , JTEKT CORPORATION
Inventor： MOTOKI TACHIIRI , YUTA SUZUKI , TAKASHI SUZUKI , TORU TAKASHIMA , TAKASHI KODERA
CPC classification number: B62D5/0403 , B62D6/008 , B62D5/046
Abstract: A steering device turns a tire of a vehicle of a steer-by-wire system in which a steering mechanism and a turning mechanism are mechanically separated from each other and is provided with a turning device including a turning actuator and a turning angle control device. The turning actuator turns tires according to an instructed turning angle. The turning angle control device calculates a turning angle command value corresponding to an inputted steering angle signal and generates a signal driving the turning actuator based on that turning angle command value. The turning angle control device applies limit such that the absolute value of a turning angle velocity becomes equal to or below a turning angle velocity limit value set according to a predetermined parameter.
-
公开(公告)号：US20230079227A1
公开(公告)日：2023-03-16
申请号：US18053695
申请日：2022-11-08
Applicant: DENSO CORPORATION
Inventor： TAKASHI SUZUKI , HIDEKI KABUNE , TOSHIHIRO FUJITA , KUNIHIKO MATSUDA , HARUKI AMANO
IPC: B62D5/04
Abstract: A first circuit energizes a steering assist actuator to electrically assist steering of a driver. A second circuit is provided in a same housing as the first circuit and energizes a positional actuator to move a steering position. A controller operates the first and second circuits to control operations of the steering assist actuator and the positional actuator. The controller changes a priority between the first circuit and the second circuit in a start period, in which the steering control device is started, a normal operation period, in which the steering control device is operated normally, and a stop period, in which the steering control device is stopped. The priority includes at least one of an order of operating the first circuit and the second circuit, output allocation between the first circuit and the second circuit, and output magnitude between the first circuit and the second circuit.
-
公开(公告)号：US20210009202A1
公开(公告)日：2021-01-14
申请号：US16922872
申请日：2020-07-07
Applicant: DENSO CORPORATION
Inventor： TAKASHI SUZUKI
Abstract: A steering control device for use in a steer-by-wire system is provided. The steering control device controls a reaction force device and a turning device of a steer-by-wire system. The steering control device includes a steering wheel torque controller that calculates a basic reaction force torque command value being a basic value of a reaction force torque command value so that a detection value of the torque sensor follows a target value. The steering control device further includes an end controller that stops a control of the steering wheel torque controller when: an absolute value of angle of the reaction force device or the turning device is equal to or greater than a limit angle value; and a physical quantity corresponding to an output torque of the turning device and the detection value of the torque sensor are values corresponding to approach to the limit angle value.
-
公开(公告)号：US20210009198A1
公开(公告)日：2021-01-14
申请号：US16922880
申请日：2020-07-07
Applicant: DENSO CORPORATION
Inventor： TAKASHI SUZUKI
Abstract: A steering control device in a seer-by-wire system calculates a current limit presentation command value so as to convey an output-limited state of a turning device to a driver, calculates a steering torque command value on a basis of a physical quantity corresponding to an output torque of the turning device, and calculates a basic reaction force torque command value being a basic value of a reaction force torque command value so that a detection value of a torque sensor follows a target value that is based on the steering torque command value. The control device controls a current flowing to a reaction-force-use rotary electric machine on a basis of the basic reaction force torque command value and the end presentation command value, and increases an absolute value of the current limit presentation command value when the turning device is in the output-limited state.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.013 seconds)
