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公开(公告)号：US20240001949A1
公开(公告)日：2024-01-04
申请号：US18215491
申请日：2023-06-28
发明人： Yugo NAGASHIMA , Yuji FUJITA , Yuuta KAJISAWA , Kazuma HASEGAWA , Takashi KOUDAI , Masaharu YAMASHITA , Atsushi SATOU , Yosuke YAMASHITA , Hiroyuki KATAYAMA , Shintaro TAKAYAMA , Toyohiro HAYASHI , Hiroki TOMIZAWA , Nobuyori NAKAJIMA , Hayaki TANABE , Takeshi IWANA
CPC分类号： B60W50/12 , B62D15/029 , B62D15/021 , B60W2520/28
摘要： A vehicle control device includes a driving control device configured to be supplied with electricity through a first power line and configured to execute a first process, and a steering control device configured to be supplied with electricity through a second power line and configured to execute a second process. The steering control device is configured such that, in a case where it is determined that power supply through the second power line has stopped during travel, when it is determined that the driving control device is not in a state of being able to execute the first process, the steering control device permits execution of the second process to stop, whereas when it is determined that the driving control device is in a state of being able to execute the first process, the steering control device does not permit execution of the second process to stop.
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公开(公告)号：US20230415586A1
公开(公告)日：2023-12-28
申请号：US18339700
申请日：2023-06-22
发明人： Yuuta KAJISAWA , Yuji FUJITA , Yugo NAGASHIMA , Kazuma HASEGAWA , Takashi KOUDAI , Masaharu YAMASHITA , Atsushi SATOU , Yosuke YAMASHITA , Kazuaki IIDA , Hiroyuki KATAYAMA , Shintaro TAKAYAMA , Toyohiro HAYASHI , Takeshi IWANA , Hayaki TANABE , Nobuyori NAKAJIMA , Hiroki TOMIZAWA
摘要： A power supply device includes a driving control device and an auxiliary control device, the vehicle including a main power source, an auxiliary power source, and a supply path, the supply path being a path configured to be opened and closed according to a state of a start switch of the vehicle. The driving control device is a device that controls a state of equipment installed in the vehicle and the auxiliary control device is a device that controls a state of the auxiliary power source. The driving control device is configured to execute a storage process, a permission signal transmission process, and an initial value process, and the auxiliary control device is configured to execute a permission signal reception process and a stop process.
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公开(公告)号：US20230365187A1
公开(公告)日：2023-11-16
申请号：US18142407
申请日：2023-05-02
发明人： Kazuma HASEGAWA , Yuji FUJITA , Yuuta KAJISAWA , Yugo NAGASHIMA , Takashi KOUDAI , Masaharu YAMASHITA , Atsushi SATOU , Yosuke YAMASHITA , Kazuaki IIDA , Hiroyuki KATAYAMA , Shintaro TAKAYAMA , Toyohiro HAYASHI , Hiroki TOMIZAWA , Nobuyori NAKAJIMA
IPC分类号： B62D5/04
CPC分类号： B62D5/0484 , B62D5/0463 , B62D5/049
摘要： A vehicle control device includes: dual-system control circuits that control power supply to dual-system winding sets of a motor; and dual-system rotation detection circuits. The control circuits calculate an absolute rotation angle of the motor, and, when a power source is turned off, store an absolute rotation angle of the motor at that time. The control circuits start when the power source is turned on and the absolute value of a difference between an absolute rotation angle that was stored when the power source was turned off last time and an absolute rotation angle that is calculated when the power source is turned on this time is equal to or smaller than a given threshold value, regardless of whether an abnormality has occurred in one of the dual-system rotation detection circuits or an abnormality of the dual-system rotation detection circuits is not determinable.
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公开(公告)号：US20230130839A1
公开(公告)日：2023-04-27
申请号：US17973737
申请日：2022-10-26
发明人： Yugo NAGASHIMA , Yuji FUJITA , Yuuta KAJISAWA , Kazuma HASEGAWA , Takashi KOUDAI , Masaharu YAMASHITA , Yosuke YAMASHITA , Shintaro TAKAYAMA , Hiroki TOMIZAWA
IPC分类号： B62D5/04
摘要： A steering control device includes a control circuit configured to control driving of a reaction force motor that generates steering reaction force applied to a steering wheel in which power transmission with turning wheels of a vehicle is separated. When a vehicle power source is turned on, the control circuit requests a vehicle control device to stop traveling of the vehicle when information is exchanged with the vehicle control device in a manner that does not follow a predetermined pattern.
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公开(公告)号：US20230126878A1
公开(公告)日：2023-04-27
申请号：US17969785
申请日：2022-10-20
发明人： Takashi KOUDAI , Yuji FUJITA , Yugo NAGASHIMA , Yuuta KAJISAWA , Kazuma HASEGAWA , Yosuke YAMASHITA , Shintaro TAKAYAMA
IPC分类号： B62D5/04
摘要： A steering control device includes a controller configured to control driving of a motor that generates a torque. The torque is a torque applied to a steering mechanism of a vehicle using electric power from at least any one of an in-vehicle main power source and an auxiliary power source that backs up the main power source. The controller is configured to wait for the auxiliary power source to be charged to an extent that the main power source is able to be backed up and to permit the vehicle to travel when the controller is activated with an activation operation for the vehicle as a trigger and transitions to a state where control of the motor is executable.
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公开(公告)号：US20240132147A1
公开(公告)日：2024-04-25
申请号：US18485710
申请日：2023-10-11
发明人： Yuuta KAJISAWA , Yuji FUJITA , Yugo NAGASHIMA , Kazuma HASEGAWA , Takashi KOUDAI , Kaishi MONOBE , Kenichi ABE , Masaharu YAMASHITA , Shintaro TAKAYAMA , Kazuaki IIDA , Yasushi HORA , Yosuke YAMASHITA , Hiroki TOMIZAWA , Nobuyori NAKAJIMA , Hayaki TANABE , Toyohiro HAYASHI , Takeshi IWANA
CPC分类号： B62D5/0484 , B62D5/046 , H02P23/00
摘要： A vehicle power supply system includes a power source control device that executes a process of switching a connection state of a driving circuit to the main power source and an auxiliary power source including; a process of switching the connection state so as to transition to a backup state as a voltage decrease of the main power source occurs, and a process of switching the connection state so as to transition to a normal state as the voltage decrease of the main power source is resolved. After a voltage decrease of the main power source occurs, a turning-side control device of a steering control unit sets an output-limited state for a turning-side motor. The output-limited state is canceled upon the power source control device completing switching of the connection state so as to transition.
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公开(公告)号：US20240025473A1
公开(公告)日：2024-01-25
申请号：US18222122
申请日：2023-07-14
发明人： Takashi KOUDAI , Yuji FUJITA , Yugo NAGASHIMA , Kazuma HASEGAWA , Yuuta KAJISAWA , Masaharu YAMASHITA , Atsushi SATOU , Yosuke YAMASHITA , Kazuaki IIDA , Shintaro TAKAYAMA , Takeshi IWANA , Toyohiro HAYASHI , Hayaki TANABE , Nobuyori NAKAJIMA , Hiroki TOMIZAWA
IPC分类号： B62D5/04
CPC分类号： B62D5/0481
摘要： A steering control system that controls a steering device of a vehicle includes a storage unit, and a control unit configured to make a state transition to a normal control state via a start-up state after a power source system of the vehicle is started. In the start-up state, the control unit executes a correction information storing process of acquiring correction element information using a state variable obtained from the steering device and writing correction information obtained based on the correction element information into the storage unit. In the start-up state, the control unit is configured to execute an abnormal condition determination process of determining whether an abnormal condition indicating that the correction information is abnormal is met. The correction information storing process is re-executed when the abnormal condition is met. The abnormal condition determination process is executed at least either before or after the correction information storing process.
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公开(公告)号：US20230415758A1
公开(公告)日：2023-12-28
申请号：US18340330
申请日：2023-06-23
发明人： Yuuta KAJISAWA , Yuji FUJITA , Kazuma HASEGAWA , Yugo NAGASHIMA , Takashi KOUDAI , Daiki INABA , Masaharu YAMASHITA , Atsushi SATOU , Yosuke YAMASHITA , Kazuaki IIDA , Hiroyuki KATAYAMA , Shintaro TAKAYAMA , Toyohiro HAYASHI , Takeshi IWANA , Hayaki TANABE , Nobuyori NAKAJIMA , Hiroki TOMIZAWA
IPC分类号： B60W50/023 , B60W50/02 , B60W50/14
CPC分类号： B60W50/023 , B60W50/0205 , B60W50/14
摘要： An electric power source apparatus includes a drive control apparatus and an auxiliary control apparatus. The drive control apparatus and the auxiliary control apparatus are configured to communicate with each other. When one of the drive control apparatus and the auxiliary control apparatus is a first control apparatus and the other of the drive control apparatus and the auxiliary control apparatus is a second control apparatus, the first control apparatus is configured to continue a function to communicate with the second control apparatus even when the first control apparatus is not able to normally communicate with the second control apparatus, and configured to execute communication with the second control apparatus when the first control apparatus is put into a state where the first control apparatus is able to normally communicate with the second control apparatus.
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公开(公告)号：US20230125769A1
公开(公告)日：2023-04-27
申请号：US17972017
申请日：2022-10-24
发明人： Kazuma HASEGAWA , Yuji FUJITA , Takashi KODERA , Isao NAMIKAWA , Atsushi ISHIHARA , Masaharu YAMASHITA , Kenji SHIBATA , Yuko GOTO , Hiroki TOMIZAWA , Nobuyori NAKAJIMA
IPC分类号： B60W30/182 , B60W50/08 , B60W50/029 , B60W50/02 , B60W10/20
摘要： A control device includes control circuits of a plurality of systems. When a transition condition is established, the control circuits of the systems make transition of a driving mode from a first driving mode to a second driving mode, and when a return condition is established in a state in which the driving mode has transitioned to the second driving mode, the control circuits of the systems make transition of the driving mode from the second driving mode to the first driving mode while gradually changing the current command values of the control circuits’ own systems toward the current command values before the adjustment.
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公开(公告)号：US20230119506A1
公开(公告)日：2023-04-20
申请号：US17966043
申请日：2022-10-14
发明人： Kazuma HASEGAWA , Yuji FUJITA , Yugo NAGASHIMA , Masaharu YAMASHITA , Shintaro TAKAYAMA , Yosuke YAMASHITA , Hiroki TOMIZAWA , Nobuyori NAKAJIMA
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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