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31. 发明公开

EP3521135A1 STEERING CONTROL DEVICE 有权
公开(公告)号：EP3521135A1
公开(公告)日：2019-08-07
申请号：EP19153449.4
申请日：2019-01-24
申请人： JTEKT CORPORATION
发明人： NAMIKAWA, Isao , ANRAKU, Koji , KAKIMOTO, Yuusuke , MATSUDA, Satoshi
IPC分类号： B62D5/00 , B62D6/00
摘要： A steering control device with reduced power consumption is provided. In the case where an IG signal is turned on, a CPU (62) disengages a clutch (14), and operates torque of a steered-side motor (56) in order to control the steered angle of steered wheels (30) to a target steered angle that matches an operation on the steering wheel (12) through feedback control. The CPU (62) decreases a current that flows through the steered-side motor (56) with respect to a request by feedback control in the case where the logical product of a statement that a vehicle speed (SPD) is equal to or less than a prescribed speed, a statement that the absolute value of steering torque (Trqs) which is input torque input to the steering wheel (12) is equal to or less than a prescribed value, and a statement that the absolute value of a steering speed is equal to or less than a predetermined speed.

32. 发明公开

EP3210856A3 STEERING CONTROL DEVICE 有权
公开(公告)号：EP3210856A3
公开(公告)日：2017-12-27
申请号：EP17157236.5
申请日：2017-02-21
申请人： JTEKT CORPORATION
发明人： NAMIKAWA, Isao , TAMAIZUMI, Terutaka
IPC分类号： B62D5/04 , B62D6/00 , B62D113/00 , B62D101/00
CPC分类号： B62D5/0463 , B62D3/12 , B62D5/0412 , B62D6/006 , B62D6/008
摘要： A steering control device capable of transmitting a road surface state to a driver as a steering reaction force more appropriately is provided. An ideal vehicle model (72) computes first spring reaction force torque (T sp1 * ) based on a target pinion angle (θ p * ) and second spring reaction force torque (T sp2 * ) based on at least lateral acceleration (LA) as components of a spring component (T sp * ) of a steering assist force. The ideal vehicle model (72) combines the first and second spring reaction force torques (T sp1 * ) and (T sp2 * ) with specified proportions of use to compute the spring component (T sp * ). The ideal vehicle model (72) decides the proportions of use of the first and second spring reaction force torques (T sp1 * ) and (T sp2 * ) on the basis of a distribution gain (G δsp ) set in accordance with the difference value between the first and second spring reaction force torques (T sp1 * ) and (T sp2 * ). The ideal vehicle model (72) increases the proportion of use of the second spring reaction force torque (T sp2 * ) as the difference value between the first and second spring reaction force torques (T sp1 * ) and (T sp2 * ) is increased.

33. 发明公开

EP3210856A2 STEERING CONTROL DEVICE 有权
标题翻译：转向控制装置
公开(公告)号：EP3210856A2
公开(公告)日：2017-08-30
申请号：EP17157236.5
申请日：2017-02-21
申请人： JTEKT CORPORATION
发明人： NAMIKAWA, Isao , TAMAIZUMI, Terutaka
IPC分类号： B62D6/00 , B62D101/00 , B62D113/00 , B62D119/00 , B62D121/00 , B62D137/00
CPC分类号： B62D5/0463 , B62D3/12 , B62D5/0412 , B62D6/006 , B62D6/008
摘要： A steering control device capable of transmitting a road surface state to a driver as a steering reaction force more appropriately is provided. An ideal vehicle model (72) computes first spring reaction force torque (T sp1 * ) based on a target pinion angle (θ p * ) and second spring reaction force torque (T sp2 * ) based on at least lateral acceleration (LA) as components of a spring component (T sp * ) of a steering assist force. The ideal vehicle model (72) combines the first and second spring reaction force torques (T sp1 * ) and (T sp2 * ) with specified proportions of use to compute the spring component (T sp * ). The ideal vehicle model (72) decides the proportions of use of the first and second spring reaction force torques (T sp1 * ) and (T sp2 * ) on the basis of a distribution gain (G δsp ) set in accordance with the difference value between the first and second spring reaction force torques (T sp1 * ) and (T sp2 * ). The ideal vehicle model (72) increases the proportion of use of the second spring reaction force torque (T sp2 * ) as the difference value between the first and second spring reaction force torques (T sp1 * ) and (T sp2 * ) is increased.
摘要翻译：提供一种能够更适当地将路面状态作为转向反力传递给驾驶员的转向控制装置。理想车辆模型（72）基于目标小齿轮角（θp*）和基于至少横向加速度（LA）的第二弹簧反作用力转矩（Tsp2 *）来计算第一弹簧反作用力转矩（Tsp1 *）作为弹簧组件（Tsp *）的转向辅助力。理想车辆模型（72）将第一和第二弹簧反力扭矩（Tsp1 *）和（Tsp2 *）与指定的使用比例相组合以计算弹簧分量（Tsp *）。理想车辆模型（72）根据根据第一和第二弹簧反力转矩（Tsp1 *）和（Tsp2 *）之间的差值设定的分配增益（Gδsp）来决定使用第一和第二弹簧反力转矩和第二弹簧反力转矩（Tsp1 *）和（Tsp2 *）。随着第一和第二弹簧反力转矩（Tsp1 *）与（Tsp2 *）之间的差值增大，理想车辆模型（72）增加第二弹簧反力转矩（Tsp2 *）的使用比例。

34. 发明公开

EP2692611A1 ELECTRIC POWER STEERING APPARATUS 有权
标题翻译：电动转向装置
公开(公告)号：EP2692611A1
公开(公告)日：2014-02-05
申请号：EP12764540.6
申请日：2012-03-28
申请人： JTEKT Corporation
发明人： TAMAIZUMI, Terutaka , EKI, Hirozumi , KITA, Masayuki , NAMIKAWA, Isao
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D117/00 , B62D119/00
CPC分类号： B62D5/0472 , B62D5/0463 , B62D6/08
摘要： An assisting command value calculating unit (23) calculates a first assisting factor (Ta1*) on the basis of the value of a torque differential control volume (Tdt*) added to a basic assist control volume (Tas*) based on a steering torque (Th) value, while increasing or decreasing, on the basis of an assisting gradient (Rag), the torque differential control volume (Tdt*) based on a torque differential value (dTh). Additionally, the assisting command value calculating unit (23) is provided with a pinion angle F/B control unit (40). The pinion angle F/B control unit (40) calculates a pinion angle command value, capable of being converted to a steering angle of the steering wheel, on the basis of the steering torque (Th) and the first assisting factor (Ta1*), and executes rotational angle feedback control. The assisting command value calculating unit (23) calculates an assisting command value (Ta*) on the basis of the value of a second assisting factor (Ta2*), calculated by the pinion angle F/B control unit (40), added to the first assisting factor (Ta1*).
摘要翻译：辅助指令值计算部（23）根据基于转向转矩的转矩微分控制量（Tdt *）的值加上基本辅助控制量（Tas *），计算第一辅助系数（Ta1 *）（Th）值，同时基于辅助梯度（Rag）增大或减小基于转矩微分值（dTh）的转矩微分控制量（Tdt *）。另外，辅助指令值计算单元（23）设置有小齿轮角度F / B控制单元（40）。小齿轮角度F / B控制单元40基于转向转矩Th和第一辅助因子Ta1 *来计算能够转换成方向盘的转向角的小齿轮角度指令值，并执行旋转角度反馈控制。辅助指令值计算单元（23）基于由小齿轮角度F / B控制单元（40）计算出的第二辅助因子（Ta2 *）的值来计算辅助指令值（Ta *），第一个辅助因素（Ta1 *）。

35. 发明公开

EP4442539A1 MOTOR CONTROL DEVICE FOR STEER-BY-WIRE STEERING DEVICE 审中-公开
公开(公告)号：EP4442539A1
公开(公告)日：2024-10-09
申请号：EP24163246.2
申请日：2024-03-13
申请人： JTEKT CORPORATION
发明人： SHIBATA, Kenji , NISHIMURA, Koichi , ISHINO, Takahito , YAMAZAKI, Ryo , INOUE, Hiroyasu , NAMIKAWA, Isao , NAKAJIMA, Nobuyori , TOMIZAWA, Hiroki , MAEGAWA, Takuya
IPC分类号： B62D5/04 , B62D5/00 , B62D6/00
CPC分类号： B62D5/0403 , B62D5/046 , B62D5/0481 , B62D6/002 , B62D5/001
摘要： In a motor control device (42) for a steer-by-wire steering device (10), the motor control device (42) having a redundant system consisting of two systems (L1, L2), a first turning current command value (It1) is calculated in a first system (L1), and a second turning current command value (It2) is calculated in a second system (L2). A third processor (68) outputs the first turning current command value (It1) when the two current command values (It1, It2) are not divergent and outputs the second turning current command value (It2) when the two current command values (It1, It2) are divergent. When a determination of a rapid steering operation is made, the third processor (68) outputs the first turning current command value (It1) regardless of whether or not the two current command values (It1, It2) are divergent.

36. 发明公开

EP4011750A1 STEERING CONTROL DEVICE 有权
公开(公告)号：EP4011750A1
公开(公告)日：2022-06-15
申请号：EP21213342.5
申请日：2021-12-09
申请人： JTEKT CORPORATION
发明人： NAMIKAWA, Isao , MATSUDA, Satoshi , IIDA, Tomoyuki , YAMASHITA, Masaharu , SHIBATA, Kenji
IPC分类号： B62D6/00 , B62D5/04
摘要： A steering control device (50) includes a first calculator (81B) configured to calculate a first axial force, a second calculator (81A), and a third calculator (81C) configured to calculate a third axial force. The third calculator (81C) is configured to, when a specific situation occurs in which a current of a turning motor (41) has to be limited, decrease a reflection degree of the first axial force in the third axial force and increase a reflection degree of the second axial force in the third axial force.
Selected drawing: FIG. 3

37. 发明公开

EP4001056A1 ABNORMALITY DETECTION DEVICE 有权
公开(公告)号：EP4001056A1
公开(公告)日：2022-05-25
申请号：EP21208389.3
申请日：2021-11-16
申请人： JTEKT CORPORATION
发明人： ANRAKU, Koji , NAMIKAWA, Isao , YOSHIDA, Takuji
IPC分类号： B62D5/04
摘要： An abnormality detection device includes a processing circuit configured to perform an abnormality detecting process. The abnormality detecting process includes a first state quantity acquiring process, a second state quantity acquiring process, a difference calculating process of calculating a difference between a first state quantity and a second state quantity, and a determination process of comparing an absolute value of the difference with a difference threshold value. The abnormality detecting process is a process of detecting an abnormality of a turning unit (6) when the absolute value of the difference is greater than the difference threshold value, and the processing circuit is configured not to perform the determination process when an absolute value of an actual current value is greater than a current threshold value.

38. 发明公开

EP3974290A1 STEERING CONTROL DEVICE 有权
公开(公告)号：EP3974290A1
公开(公告)日：2022-03-30
申请号：EP21197998.4
申请日：2021-09-21
申请人： JTEKT CORPORATION
发明人： NAMIKAWA, Isao , MATSUDA, Satoshi , IIDA, Tomoyuki , KUDO, Yoshio , YAMASHITA, Masaharu , SHIBATA, Kenji
IPC分类号： B62D6/00
摘要： A steering control device includes a control unit configured to control at least an operation of a steering-side motor (13). The control unit is configured to calculate a target reaction torque; calculate a difference axial force that is used to limit steering for turning the turning wheels in a predetermined direction, the difference axial force being reflected in the target reaction torque; and set a reference angle to one of a steering angle and a turning angle, set a converted angle to an angle obtained by converting another of the steering angle and the turning angle according to a steering angle ratio, and calculate the difference axial force based on a difference between the reference angle and the converted angle.

39. 发明公开

EP3967574A1 STEERING SYSTEM 有权
公开(公告)号：EP3967574A1
公开(公告)日：2022-03-16
申请号：EP21192533.4
申请日：2021-08-23
申请人： JTEKT Corporation
发明人： NAMIKAWA, Isao , ANRAKU, Koji , YOSHIDA, Takuji , NITANO, Masahide
IPC分类号： B62D5/04
摘要： A steering system to steer wheels (25, 26) by a movement of a steering shaft (10), including: the steering shaft (10); an electric motor (14); a converter (16) configured to convert a rotational motion of the motor (14) into the movement of the steering shaft (10); a motor rotation angle obtainer (80) configured to obtain a motor rotation angle from a zero point position; a movement-amount-related-amount obtainer (60, 62, 82) configured to obtain a movement-amount-related amount that is a movement amount of the steering shaft (10) from a neutral position or a physical amount in a one-to-one correspondence with the movement amount; and a controller (70) including a malfunction detector configured to detect a presence or absence of a malfunction of the converter (16) in a mode that differs depending on a temperature state of the steering system, based on the motor rotation angle from the zero point position obtained by the motor rotation angle obtainer and the movement-amount-related amount obtained by the movement-amount-related-amount obtainer.

40. 发明授权

EP3575187B1 STEERING CONTROL APPARATUS 有权
公开(公告)号：EP3575187B1
公开(公告)日：2020-12-02
申请号：EP19176962.9
申请日：2019-05-28
申请人： JTEKT CORPORATION
发明人： KODERA, Takashi , TAMAIZUMI, Terutaka , KITA, Masayuki , NAMIKAWA, Isao
IPC分类号： B62D6/04 , B62D6/00

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