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公开(公告)号：EP3745573A1
公开(公告)日：2020-12-02
申请号：EP20176811.6
申请日：2020-05-27
摘要： An auxiliary power source device (40) includes a main power source-side path (LI), an auxiliary power source-side path (L2), a power source control circuit (70), an analog determination circuit (100) that is provided separately from the power source control circuit (70), and a power source switching circuit (110). The power source control circuit (70) controls switching between a conduction state and an interruption state on the main power source-side path (LI) and the auxiliary power source-side path (L2). The analog determination circuit (100) determines an occurrence of abnormality in the main power source (50) and generates a switching signal when the occurrence of the abnormality in the main power source (50) is determined. The power source switching circuit (110) switchs a power source for supplying power to a power supply target, from the main power source (50) to the auxiliary power source (60).
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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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公开(公告)号：EP3971056A2
公开(公告)日：2022-03-23
申请号：EP21193190.2
申请日：2021-08-26
发明人： KAJISAWA, Yuuta , SATO, Fumihiko , YAMASHITA, Masaharu , SATOU, Atsushi , OKUDA, Masataka , MIKIDA, Toshiyuki , HANZAWA, Hiroaki
IPC分类号： B62D5/04
摘要： An electric power source device (5) includes an auxiliary electric power source (41) for a main electric power source (6) that supplies electric power to electric power supply targets, including an electric circuit (52) of a control system for controlling a specific control target and an electric circuit (51) of a power system that requires larger electric power than the electric circuit (52) of the control system; and a selection circuit configured to supply the electric power from one electric power source having a higher voltage, out of the main electric power source (6) and the auxiliary electric power source (41), to at least the electric circuit (52) of the control system among the electric power supply targets.
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公开(公告)号：EP3349326A1
公开(公告)日：2018-07-18
申请号：EP18151398.7
申请日：2018-01-12
CPC分类号： H02J7/0052 , B60R16/02 , B62D5/046 , B62D5/06 , H02J7/0068 , H02J7/345 , H02J9/061 , H02J2009/068
摘要： An auxiliary power supply device (32) includes: a plurality of channels of auxiliary power supplies; a charging circuit (52); and an auxiliary power supply switching circuit (56) disposed between the charging circuit (52) and positive electrode terminals of the plurality of channels of auxiliary power supplies and configured to switch one channel of auxiliary power supply connected to the charging circuit (52) among the plurality of channels of auxiliary power supplies and to simultaneously switch one channel of auxiliary power supply connected to a power supply destination so as not to match the channel of auxiliary power supply connected to the charging circuit (52).
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公开(公告)号：EP4116172A1
公开(公告)日：2023-01-11
申请号：EP22181555.8
申请日：2022-06-28
发明人： YAMASHITA, Masaharu , OKUDA, Masataka , YAMASHITA, Yosuke , FUJITA, Yuji , KAJISAWA, Yuuta , ABE, Kenichi , NAKAJIMA, Nobuyori , TOMIZAWA, Hiroki , IWANA, Takeshi
摘要： A steer-by-wire steering system for a vehicle, including: an operating member (20) operable by a driver; a dual-system steering device (14, 14a, 14b) including two systems each of which includes an electric motor (50, 50a, 50b) as a drive source, the steering device (14, 14a, 14b) being configured to steer a wheel (10); and a controller (62, 62a, 62b) configured to control a current to be supplied to each of the electric motors (50, 50a, 50b) of the respective two systems so as to cause the steering device (14, 14a, 14b) to steer the wheel (10) in accordance with an operation of the operating member (20), wherein the controller (62, 62a, 62b) is configured to prohibit the current greater than an upper limit value from being supplied to the electric motors (50, 50a, 50b) of the respective two systems, and wherein, when the wheel (10) is steered by only one of the two systems, the controller (62, 62a, 62b) raises the upper limit value of the current to be supplied to the electric motor (50, 50a, 50b) of the one of the two systems.
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公开(公告)号：EP3971056A3
公开(公告)日：2022-07-13
申请号：EP21193190.2
申请日：2021-08-26
发明人： KAJISAWA, Yuuta , SATO, Fumihiko , YAMASHITA, Masaharu , SATOU, Atsushi , OKUDA, Masataka , MIKIDA, Toshiyuki , HANZAWA, Hiroaki
IPC分类号： B62D5/04
摘要： An electric power source device (5) includes an auxiliary electric power source (41) for a main electric power source (6) that supplies electric power to electric power supply targets, including an electric circuit (52) of a control system for controlling a specific control target and an electric circuit (51) of a power system that requires larger electric power than the electric circuit (52) of the control system; and a selection circuit configured to supply the electric power from one electric power source having a higher voltage, out of the main electric power source (6) and the auxiliary electric power source (41), to at least the electric circuit (52) of the control system among the electric power supply targets.
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公开(公告)号：EP3726713A1
公开(公告)日：2020-10-21
申请号：EP20169789.3
申请日：2020-04-16
申请人： JTEKT CORPORATION
摘要： An electric power supply circuit includes an auxiliary electric power supply (100); a first MOSFET (101) provided on an auxiliary electric power supply-side feed path, the first MOSFET (101) including a parasitic diode configured to restrict conduction of electric current in a direction from the auxiliary electric power supply (100) toward the feed target; a second MOSFET (102) provided on the auxiliary electric power supply-side feed path, the second MOSFET (102) including a parasitic diode configured to restrict conduction of the electric current in a direction from the feed target toward the auxiliary electric power supply (100); and a third MOSFET (103) provided on at least one of the auxiliary electric power supply-side feed path and the main electric power supply-side feed path, the third MOSFET (103) including a parasitic diode configured to restrict conduction of the electric current in a direction from the main electric power supply toward the auxiliary electric power supply (100).
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公开(公告)号：EP3716483A1
公开(公告)日：2020-09-30
申请号：EP20165561.0
申请日：2020-03-25
申请人： JTEKT CORPORATION
摘要： A power supply circuit (41) includes a first P-channel MOSFET (PMOS 1) and a first voltage application circuit (71). The first P-channel MOSFET (PMOS 1) is provided between an on-board power supply (50) and a vehicular apparatus that is a power supply target, and is configured to switch a power-ON state in which electric power is supplied to the vehicular apparatus and a power-OFF state in which the supply of the electric power is interrupted. The first voltage application circuit (71) is configured to apply a voltage having a potential lower than a potential of the on-board power supply (50) to a gate terminal such that a state of the first P-channel MOSFET (PMOS 1) is switched to the power-ON state, and apply a voltage having a potential equal to the potential of the on-board power supply (50) to the gate terminal such that the state of the first P-channel MOSFET (PMOS 1) is switched to the power-OFF state.
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