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公开(公告)号：EP4215421A1
公开(公告)日：2023-07-26
申请号：EP21869232.5
申请日：2021-09-06
发明人： UCHIDA, Takayuki , YAMASHITA, Yosuke , TAKAYAMA, Shintaro , IIDA, Kazuaki , YAMASHITA, Masaharu , HASEGAWA, Kazuma , FUJITA, Yuji , ABE, Kenichi , KAJISAWA, Yuuta , NAGASHIMA, Yugo
IPC分类号： B60R25/0215 , E05B83/00 , B62D5/04
摘要： A steering control device is applied to a steer-by-wire system (901) in which a steering mechanism and a turning mechanism are mechanically separated, or an electric power steering system (902) in which the steering mechanism and the turning mechanism are mechanically coupled. A steering control device (201) applied to the steer-by-wire system (901) controls a drive of a steering motor (78) that functions as a reaction motor that applies reaction torque to a steering wheel (91). A steering wheel lock calculating unit (75) of the steering control device (201) performs a steering wheel lock drive control for calculating a drive command so as to output a lock torque for maintaining a rotation stop state of the steering wheel by energizing the steering motor (78) when a predetermined condition is satisfied while a vehicle is parked or stopped. A power converter (77) converts power supply electric power according to the drive command calculated by the steering wheel lock calculating unit (75) and supplies the electric power to the steering motor.
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公开(公告)号：EP4169806A1
公开(公告)日：2023-04-26
申请号：EP22202946.4
申请日：2022-10-21
发明人： KOUDAI, Takashi , FUJITA, Yuji , NAGASHIMA, Yugo , KAJISAWA, Yuuta , HASEGAWA, Kazuma , YAMASHITA, Masaharu , YAMASHITA, Yosuke , TAKAYAMA, Shintaro , TOMIZAWA, Hiroki , NAKAJIMA, Nobuyori
IPC分类号： B62D5/04
摘要： A steering control device (1) includes a controller including a drive circuit (61a) that performs action for supplying, to a motor, electric power supplied by being connected to at least one of a first and a second power supply. When a connection state of the drive circuit (61a) is a state in which electric power is supplied from the first power supply, the connection state is switched by a power supply device (80) to transition to a second state in which electric power is supplied from the second power supply when an abnormality of the first power supply is detected. Moreover, the controller starts an output limiting process of limiting torque outputtable by the motor as compared with before the abnormality of the first power supply is detected, after the abnormality is detected and before switching of the connection state is completed.
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公开(公告)号：EP4166423A3
公开(公告)日：2023-08-02
申请号：EP22201331.0
申请日：2022-10-13
发明人： HASEGAWA, Kazuma , FUJITA, Yuji , NAGASHIMA, Yugo , YAMASHITA, Masaharu , TAKAYAMA, Shintaro , YAMASHITA, Yosuke , TOMIZAWA, Hiroki , NAKAJIMA, Nobuyori
IPC分类号： B62D5/04
摘要： A control device for a vehicle includes a plurality of control circuits configured to control a control object in cooperation or in combination by starting with powering-on of a vehicle as a trigger. Each of the plurality of control circuits is configured to perform a synchronization process and power latch control. Each of the plurality of control circuits is configured to maintain the operation mode immediately before the vehicle has been powered off in a period in which the power latch control is being performed. Each of the plurality of control circuits is configured not to perform the synchronization process in a predetermined period when the vehicle has been powered on.
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公开(公告)号：EP4209404A1
公开(公告)日：2023-07-12
申请号：EP22208234.9
申请日：2022-11-18
发明人： ISHINO, Takahito , YAMASHITA, Masaharu , SHIBATA, Kenji , YAMASHITA, Yosuke , TAKAYAMA, Shintaro , IIDA, Kazuaki , YAMAZAKI, Ryo , KAJISAWA, Yuuta , ABE, Kenichi , HAYASHI, Toyohiro , NAKAJIMA, Nobuyori , OTAKE, Hiroyasu , TAZUKE, Kurumi , TOMIZAW, Hiroki
IPC分类号： B62D5/00
摘要： A steer-by-wire steering system including a steering device (3) including a steering motor (35) and a controller (5) configured to supply a steering current to the steering motor (35) based on a steering request. The controller (5) includes a plurality of calculating portions (51, 54, 57), a plurality of drive circuits (52, 55, 58), and a plurality of temperature sensors (53, 56, 59). When a detection temperature difference that is a difference between detection temperatures of any two of the plurality of temperature sensors (53, 56, 59) is greater than a predetermined threshold, each of the plurality of calculating portions (51, 54, 57) executes an independent calculation control to independently calculate and set a current limit value, which is an upper limit value of the steering current, based on a detection temperature of one of the plurality of temperature sensors (53, 56, 59) corresponding to itself, irrespective of detection temperatures of one or more of the plurality of temperature sensors (53, 56, 59) other than the one of the plurality of temperature sensors (53, 56, 59) corresponding to itself.
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公开(公告)号：EP4173900A1
公开(公告)日：2023-05-03
申请号：EP22203900.0
申请日：2022-10-26
发明人： NAGASHIMA, Yugo , FUJITA, Yuji , KAJISAWA, Yuuta , HASEGAWA, Kazuma , KOUDAI, Takashi , YAMASHITA, Masaharu , YAMASHITA, Yosuke , TAKAYAMA, Shintaro , TOMIZAWA, Hiroki
IPC分类号： B60R25/20
摘要： A steering control device includes a control circuit configured to control driving of a reaction force motor (21) that generates steering reaction force applied to a steering wheel (11) in which power transmission with turning wheels (15) of a vehicle is separated. When a vehicle power source is turned on, the control circuit requests a vehicle control device (60) to stop traveling of the vehicle when information is exchanged with the vehicle control device (60) in a manner that does not follow a predetermined pattern.
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公开(公告)号：EP4166423A2
公开(公告)日：2023-04-19
申请号：EP22201331.0
申请日：2022-10-13
发明人： HASEGAWA, Kazuma , FUJITA, Yuji , NAGASHIMA, Yugo , YAMASHITA, Masaharu , TAKAYAMA, Shintaro , YAMASHITA, Yosuke , TOMIZAWA, Hiroki , NAKAJIMA, Nobuyori
IPC分类号： B62D5/04
摘要： A control device for a vehicle includes a plurality of control circuits configured to control a control object in cooperation or in combination by starting with powering-on of a vehicle as a trigger. Each of the plurality of control circuits is configured to perform a synchronization process and power latch control. Each of the plurality of control circuits is configured to maintain the operation mode immediately before the vehicle has been powered off in a period in which the power latch control is being performed. Each of the plurality of control circuits is configured not to perform the synchronization process in a predetermined period when the vehicle has been powered on.
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公开(公告)号：EP4166422A3
公开(公告)日：2023-07-26
申请号：EP22201287.4
申请日：2022-10-13
发明人： NAGASHIMA, Yugo , FUJITA, Yuji , HASEGAWA, Kazuma , KAJISAWA, Yuuta , KOUDAI, Takashi , YAMASHITA, Masaharu , YAMASHITA, Yosuke , TAKAYAMA, Shintaro , IIDA, Kazuaki , KATAYAMA, Hiroyuki , TOMIZAWA, Hiroki , NAKAJIMA, Nobuyori
摘要： A control device for a vehicle includes a plurality of control circuits (41A, 42A, 51A, 52A) configured to control a control object by starting in response to powering-on of a vehicle and to perform power latch control for continuing to be supplied with electric power in a predetermined period in response to powering-off of the vehicle. Each of the control circuits (41A, 42A, 51A, 52A) is configured to perform starting after all of the control circuits (41A, 42A, 51A, 52A) have recognized the powering-on of the vehicle in a case where the vehicle is powered on while the power latch control is being performed after the vehicle has been powered off.
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公开(公告)号：EP4206063A1
公开(公告)日：2023-07-05
申请号：EP21861666.2
申请日：2021-08-26
发明人： TAZUKE, Kurumi , TOMIZAWA, Hiroki , KAMEYA, Hisashi , SAKAI, Toshimitsu , YAMASHITA, Masaharu , SHIBATA, Kenji , YAMASHITA, Yosuke , TAKAYAMA, Shintaro , TAKAHASHI, Toshihiro , FUJITA, Yuji , ABE, Kenichi , NAGASHIMA, Yugo
IPC分类号： B62D101/00 , B62D113/00 , B62D119/00 , B62D6/00 , B62D5/04
摘要： A steer-by-wire rudder system (100) includes a first system having a first motor unit (13A, 22A) that drives a rudder mechanism (10, 20) and a first control unit (40A, 45A) that controls the first motor unit, and a second system having a second motor unit (13B, 22B) that drives the rudder mechanism and a second control unit (40B, 45B) that controls the second motor unit. The first control unit and the second control unit perform cooperative control for controlling the first motor unit and the second control unit to cooperate with each other. When the cooperative control is not performed, one of the control of the first motor unit by the first control unit and the control of the second motor unit by the second control unit continues, and the other thereof stops.
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公开(公告)号：EP4166422A2
公开(公告)日：2023-04-19
申请号：EP22201287.4
申请日：2022-10-13
发明人： NAGASHIMA, Yugo , FUJITA, Yuji , HASEGAWA, Kazuma , KAJISAWA, Yuuta , KOUDAI, Takashi , YAMASHITA, Masaharu , YAMASHITA, Yosuke , TAKAYAMA, Shintaro , IIDA, Kazuaki , KATAYAMA, Hiroyuki , TOMIZAWA, Hiroki , NAKAJIMA, Nobuyori
IPC分类号： B62D5/04
摘要： A control device for a vehicle includes a plurality of control circuits (41A, 42A, 51A, 52A) configured to control a control object by starting in response to powering-on of a vehicle and to perform power latch control for continuing to be supplied with electric power in a predetermined period in response to powering-off of the vehicle. Each of the control circuits (41A, 42A, 51A, 52A) is configured to perform starting after all of the control circuits (41A, 42A, 51A, 52A) have recognized the powering-on of the vehicle in a case where the vehicle is powered on while the power latch control is being performed after the vehicle has been powered off.
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公开(公告)号：EP3725643A1
公开(公告)日：2020-10-21
申请号：EP20169553.3
申请日：2020-04-15
发明人： YAMASHITA, Masaharu , SATO, Atsushi , OKUDA, Masataka , YAMASHITA, Yosuke , TAKAYAMA, Shintaro , HIROMASA, Shunsuke , MIKIDA, Toshiyuki , KUBOTA, Shoji , FUJITA, Yuji , ABE, Kenichi , SAKAI, Toshimitsu
摘要： An actuator (10) that applies force to a member associated with steering, and a control device (100) that controls the actuator, have duplex configuration. First and second control devices (100-1, 100-2) compute the same controlled variable as first and second controlled variables (C1, C2), respectively. In a normal mode, the control device (100) controls the actuator according to the first controlled variable (C1). When a discrepancy arises between the first and second controlled variables (C1, C2), or an abnormality occurs in communications between the first and second control devices (100-1, 100-2), the operating mode is switched from the normal mode to an independent mode. In the independent mode, the first and second control devices (100-1, 100-2) control the first and second actuators, according to the first and second controlled variables (C1, C2), respectively.
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