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1. 发明授权

EP3496266B1 STEERING CONTROL APPARATUS 有权
公开(公告)号：EP3496266B1
公开(公告)日：2020-06-03
申请号：EP18207573.9
申请日：2018-11-21
申请人： JTEKT CORPORATION
发明人： FUJITA, Yuji , KAWAMURA, Hiroshi , PALANDRE, Xavier Joseph
IPC分类号： H02P25/22

2. 发明公开

EP3597508A3 MOTOR CONTROLLER 审中-公开
公开(公告)号：EP3597508A3
公开(公告)日：2020-01-29
申请号：EP19186896.7
申请日：2019-07-18
申请人： JTEKT CORPORATION
发明人： KAWAMURA, Hiroshi , FUJITA, Yuji , PALANDRE, Xavier Joseph
IPC分类号： B62D5/04 , H02P25/22
摘要： Provided is a motor controller in which a total motor torque can be changed at a constant rate if maximum torques that can be generated by winding groups of a plurality of systems lose their balance. An upper limit of a first assist control amount (I as1 *) for a first winding group or a second assist control amount (I as2 *) for a second winding group may be limited to a value smaller than the original upper limit. In this case, an ECU calculates the first assist control amount (I as1 *) and the second assist control amount (I as2 *) so that the first assist control amount (I as1 *) and the second assist control amount (I as2 *) reach their upper limits at the same timing relative to changes in absolute values of steering torques (τ 1 , τ 2 ).

3. 发明授权

EP2287064B1 ELECTRIC POWER STEERING APPARATUS 有权
公开(公告)号：EP2287064B1
公开(公告)日：2013-09-18
申请号：EP09766567.3
申请日：2009-06-10
申请人： JTEKT Corporation
发明人： IZUTANI, Keisuke , KAWAMURA, Hiroshi
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D119/00
CPC分类号： B62D5/0481 , B62D5/0484

4. 发明公开

EP3715214A1 MOTOR CONTROLLER 有权转让
公开(公告)号：EP3715214A1
公开(公告)日：2020-09-30
申请号：EP19218480.2
申请日：2019-12-20
申请人： JTEKT Corporation
发明人： KAWAMURA, Hiroshi , FUJITA, Yuji
IPC分类号： B62D5/04
摘要： A motor controller is configured to control a motor including a plurality of winding groups. The motor controller includes a plurality of processors (51; 61). Each of the processors (51; 61) is configured to independently control supply of driving electric power to each of the winding groups. When an abnormality occurs in which a torque to be generated in one of the winding groups is smaller than an individual rated torque and when a target overall torque is larger than a total of the individual rated torque for the winding group in which the abnormality does not occur, the processor (51; 61), controlling supply of driving electric power to the winding group in which the abnormality does not occur, out of the plurality of processors (51; 61) controls supply of the driving electric power such that the winding group generate a torque larger than the individual rated torque.

5. 发明公开

EP3496266A1 STEERING CONTROL APPARATUS 有权
公开(公告)号：EP3496266A1
公开(公告)日：2019-06-12
申请号：EP18207573.9
申请日：2018-11-21
申请人： JTEKT CORPORATION
发明人： FUJITA, Yuji , KAWAMURA, Hiroshi , PALANDRE, Xavier Joseph
IPC分类号： H02P25/22
摘要： Provided is a steering control apparatus configured to suppress the occurrence of abnormalities in components in respective systems at the same timing. A first assist torque calculation circuit (50) calculates a first command value (T1a*) and a second command value (T2a*) based on a steering torque (τ1). A first current feedback control circuit (51) calculates a control signal (Sml) by using the first command value (T1a*). A second current feedback control circuit (61) calculates a control signal (Sm2) by using the second command value (T2a*). When the steering torque (τ1) is equal to or smaller than a steering torque threshold, the first assist torque calculation circuit (50) executes calculation so that the first command value (T1a*) is larger than the second command value (T2a*). After the steering torque (τ1) exceeds the steering torque threshold, the first assist torque calculation circuit (50) executes calculation so that the first command value (T1a*) is equal to the second command value (T2a*).

6. 发明公开

EP2287064A1 ELECTRIC POWER STEERING APPARATUS 有权
标题翻译：电动转向装置
公开(公告)号：EP2287064A1
公开(公告)日：2011-02-23
申请号：EP09766567.3
申请日：2009-06-10
申请人： JTEKT Corporation
发明人： IZUTANI, Keisuke , KAWAMURA, Hiroshi
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D119/00
CPC分类号： B62D5/0481 , B62D5/0484
摘要： An electric power steering apparatus 1 drives a motor 4 to generate a steering assist force according to a steering torque and includes an output circuit 21 for supplying the motor with electric power from at least one of a battery 4 and an auxiliary power supply 7, 8. The electric power steering apparatus has a control circuit 13 which at or after detection of a breakdown of the battery 4, determines a length of time to the end of steering assist (decreasing time t1) based on the amount of energy stored in the auxiliary power supplies 7, 8 and which takes the determined length of time to perform output decreasing control to gradually decrease the upper limit of power supplied for the steering assist to practically zero according to a constant gradient. Thus is provided an electric power steering apparatus which is adapted to prevent a sudden fall of the steering assist force in the event of a battery breakdown while effectively utilizing the available stored energy.
摘要翻译：电动式动力转向装置1通过驱动电动机4而产生与转向转矩相对应的转向辅助力，并具有用于从电池4和辅助电源7,8中的至少一方向电动机供给电力的输出电路21 该电动助力转向装置具有控制电路13，该控制电路13在检测到电池4的故障时或之后，基于存储在辅助装置中的能量的量来确定转向辅助结束的时间长度（减小时间t1）电源7,8，并且其采用所确定的时间长度来执行输出减小控制，以根据恒定梯度将为转向辅助提供的功率的上限逐渐减小到实际为零。因此，提供了一种电动转向装置，其适于在电池损坏的情况下防止转向辅助力的突然下降，同时有效地利用可用的存储能量。

7. 发明公开

EP4143964A1 MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD 有权
公开(公告)号：EP4143964A1
公开(公告)日：2023-03-08
申请号：EP20731192.9
申请日：2020-04-27
申请人： JTEKT Corporation , JTEKT EUROPE S.A.S.
发明人： FUJITA, Yuji , KAWAMURA, Hiroshi , SLAMA, Tahar , HANSER, Baptiste , JANEL, Laurent
IPC分类号： H02P21/20 , H02P6/10 , B62D5/04 , H02P29/028

8. 发明公开

EP3677488A1 STEERING SYSTEM 有权转让
公开(公告)号：EP3677488A1
公开(公告)日：2020-07-08
申请号：EP19216027.3
申请日：2019-12-13
申请人： JTEKT Corporation
发明人： KAWAMURA, Hiroshi , FUJITA, Yuji
IPC分类号： B62D6/10 , B62D5/04
摘要： A steering system includes a prioritized torque sensor (32), a redundant torque sensor (33), a controller (3), a first signal line (L1), a second signal line (L2), and a common signal line (Lc). Each of the first signal line (L1) and the second signal line (L2) connects the prioritized torque sensor (32) and the controller (3). The common signal line (Lc) connects the redundant torque sensor (33) and the controller (3). The prioritized torque sensor (32) is configured to transmit, via the first signal line (L1), a first prioritized detection signal. The prioritized torque sensor (32) is configured to transmit, via the second signal line (L2), a second prioritized detection signal. The redundant torque sensor (33) is configured to transmit, via the common signal line (Lc), a first redundant detection signal and a second redundant detection signal.

9. 发明公开

EP3648334A1 MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD 有权转让
公开(公告)号：EP3648334A1
公开(公告)日：2020-05-06
申请号：EP19306389.8
申请日：2019-10-25
申请人： JTEKT CORPORATION , Jtekt Europe S.A.S.
发明人： KAWAMURA, Hiroshi , FUJITA, Yuji , PALANDRE, Xavier , SLAMA, Tahar
IPC分类号： H02P1/04 , H02P6/08 , H02P6/28 , H02P21/06 , H02P21/22 , H02P25/03 , H02P25/26 , B62D5/00
摘要： A motor control device includes a controller (40) configured to calculate a current command value corresponding to torque that should be generated by a motor (31), divide the calculated current command value into individual current command values for coil groups (52,53), control power feeding to the coil groups independently for each of the coil groups based on a corresponding one of the individual current command values, set, for each one of the coil groups, an upper limit value of a corresponding one of the individual current command values and, when the individual current command value for any one of the coil groups is limited to a value that is smaller than a corresponding one of the upper limit values, supplement an amount limited in the individual current command value by increasing the individual current command value for at least a remaining one of the coil groups.

10. 发明授权

EP2778024B1 ELECTRICALLY OPERATED POWER STEERING DEVICE 有权
标题翻译：电动操纵装置
公开(公告)号：EP2778024B1
公开(公告)日：2018-04-04
申请号：EP12848277.5
申请日：2012-10-26
申请人： JTEKT Corporation
发明人： KAWAMURA, Hiroshi
IPC分类号： B62D6/00 , B62D5/04 , H02P6/12 , B62D101/00 , B62D119/00 , H02P6/08
CPC分类号： H02P6/08 , B62D5/0481 , B62D5/0484
摘要： An electric power steering apparatus (1) includes an EPS actuator (10) that applies assist force to a steering system, and an ECU (11) that controls operation of the EPS actuator (10). The ECU (11) includes an inverter device (32), a gate driver circuit (31), a gate driver power source (29), a microcomputer (16), and the like. The microcomputer (16) switches assist control to assist stop control, based on an indication of a voltage decrease in the gate driver power source (29).

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