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    MOTOR CONTROL DEVICE
    1.
    发明公开
    MOTOR CONTROL DEVICE 审中-公开

    公开(公告)号：EP4442540A1

    公开(公告)日：2024-10-09

    申请号：EP21966448.9

    申请日：2021-12-03

    申请人： JTEKT Corporation

    发明人： SHOJI, Naoki ,  ITAMOTO, Hidenori ,  TAMAIZUMI, Terutaka ,  TAMAKI, Hiromasa ,  NITTA, Shingo ,  ZHOU, Xin ,  TSUJII, Shunsuke

    IPC分类号： B62D6/00

    CPC分类号： B62D6/00

    摘要： A motor control device includes a manual steering command value generation unit that generates a manual steering command value, and a hands-on/off determination unit that determines whether a driver is in a gripping state in which the driver is gripping a steering wheel or in a released state in which the driver is not gripping the steering wheel. The manual steering command value generation unit is configured to generate the manual steering command value based on an equation of motion. The motor control device further includes a coefficient value changing unit that changes a value of at least one coefficient among coefficients included in the equation of motion based on a determination result from the hands-on/off determination unit.

    STEERING CONTROL APPARATUS
    3.
    发明公开
    STEERING CONTROL APPARATUS 审中-公开
    转向控制装置

    公开(公告)号：EP3219580A1

    公开(公告)日：2017-09-20

    申请号：EP17160885.4

    申请日：2017-03-14

    申请人： JTEKT CORPORATION

    发明人： KODERA, Takashi ,  YAMANO, Naoki ,  ITAMOTO, Hidenori ,  YAMASHITA, Yoshihiro ,  ANRAKU, Koji

    IPC分类号： B62D6/00 ,  B62D5/00

    CPC分类号： B62D5/0463 ,  B62D5/0412 ,  B62D6/002 ,  B62D6/008 ,  B62D6/04 ,  B62D6/08

    摘要： A steering control apparatus includes a steering angle feedback processing unit M22 and an operation signal generation processing unit M24 that operate a reaction force actuator to adjust a steering angle θh to a target steering angle θh* that is a target value for the steering angle θh based on feedback control, an ideal-axial-force calculation unit M10ab that calculates an ideal axial force Fib, a road-surface-axial-force calculation unit M10ac that calculates a road surface axial force Fer, an axial-force allocation calculation unit M10aa that calculates a base reaction force Fd in which the ideal axial force Fib and the road surface axial force Fer are allocated in a predetermined ratio, and a target steering angle calculation processing unit M20 that sets a target steering angle θh* based on the base reaction force Fd. The steering angle feedback processing unit M22 feeds back the target steering angle θh* in which road surface information is incorporated through the road surface axial force Fer, so that the steering angle θh is controlled.

    摘要翻译： 转向控制装置具备转向角反馈处理部M22和操作信号生成处理部M24，该转向角反馈处理部M22和操作信号生成处理部M24对反作用力致动器进行操作，将转向角θh调整成作为基于转向角θh的目标值的目标转向角θh* 在反馈控制中，计算理想轴力F e的理想轴力计算部M10ab，计算路面轴力Fer的路面轴力计算部M10ac，计算轴力分配计算部M10aa的轴力分配计算部M10aa 目标转向角计算处理单元M20基于基本反作用力计算目标转向角θh*，目标转向角计算处理单元M20以预定比例计算其中分配有理想轴向力Fib和路面轴向力Fer的基本反作用力Fd FD。 转向角反馈处理单元M22通过路面轴向力Fer反馈其中包含路面信息的目标转向角θh*，从而控制转向角θh。

    ELECTRIC POWER STEERING SYSTEM
    4.
    发明公开
    ELECTRIC POWER STEERING SYSTEM 有权
    ELEKTRISCHES SERVOLENKSYSTEM

    公开(公告)号：EP2998198A1

    公开(公告)日：2016-03-23

    申请号：EP15185317.3

    申请日：2015-09-15

    申请人： JTEKT CORPORATION

    发明人： ITAMOTO, Hidenori ,  TAMAIZUMI, Terutaka ,  MAEDA, Shingo

    IPC分类号： B62D5/04

    CPC分类号： B62D5/0463 ,  B62D5/0409 ,  B62D5/0466 ,  B62D5/0484 ,  B62D5/0493 ,  B62D6/02 ,  B62D6/04

    摘要： Restriction values (an upper limit value IUL* and a lower limit value ILL*) for an assist control amount (Ias*) are set individually for each of state amounts including steering torque (τ) which is used to compute the assist control amount (Ias*). A value obtained by summing such restriction values is set as a final restriction value (IUL*,ILL*) for the assist control amount (Ias*). Even in the case where the assist control amount with an abnormal value is computed because of some factors, the abnormal value of the assist control amount is restricted to an appropriate value that matches each signal value by the final restriction value. In addition, a transition is made from a primary assist control amount (Ias*) which is restricted to a secondary assist control amount (Ias*sub) computed separately from the primary assist control amount at the timing when a certain time elapses since the assist control amount is restricted. As the steering torque (τ) is increased, the speed of transition from the primary assist control amount to the secondary assist control amount is increased.

    摘要翻译： 对于辅助控制量（Ias *）的限制值（上限值IUL *和下限值ILL *）分别设定为包括用于计算辅助控制量的转向转矩（Ä）的状态量 IAS *）。 通过对这种限制值求和获得的值被设定为辅助控制量（Ias *）的最终限制值（IUL *，ILL *）。 即使由于某些因素而计算出具有异常值的辅助控制量的情况，辅助控制量的异常值被限制为与每个信号值匹配最终限制值的适当值。 此外，从辅助辅助控制量（Ias *）转移到限制为辅助辅助控制量（Ias * sub）的次要辅助控制量（Ias * sub） 控制量受到限制。 随着转向转矩（Ä）的增加，从主辅助控制量向次要辅助控制量的转变速度增加。

    STEER-BY-WIRE STEERING SYSTEM
    9.
    发明公开
    STEER-BY-WIRE STEERING SYSTEM 审中-公开

    公开(公告)号：EP3351455A1

    公开(公告)日：2018-07-25

    申请号：EP18151575.0

    申请日：2018-01-15

    申请人： JTEKT Corporation

    发明人： YAMANO, Naoki ,  ITAMOTO, Hidenori

    IPC分类号： B62D5/00 ,  B62D6/00

    摘要： Provided is a steer-by-wire steering system that is less likely to make a driver feel a sense of discomfort. The steer-by-wire steering system is structured such that a steering input device (1) that is steered by a driver is mechanically coupleable to a steering operation device (2) that causes steered wheels (16) to be steered in accordance with the steering of the steering input device (1) by a driver. The steer-by-wire steering system includes a steering-side motor (22) that supplies a steering shaft (11) of the steering input device (1) with a steering reaction force, a steered-side motor (32) that supplies a rack shaft (14) of the steering operation device (2) with a steering force, and a power supply control circuit (40) that controls a power supply to the steering-side motor (22) so that the steering-side motor (22) generates the steering reaction force and that controls a power supply to the steered-side motor (32) so that the steered-side motor (32) generates the steering force. When the duty ratio of a duty signal that is generated to control the power supply to the steered-side motor (32) reaches a setting value that is defined to indicate that a steered angle becomes unable to follow a steering angle, the power supply control circuit (40) controls the power supply to the steering-side motor (22) such that the steering-side motor (22) increases the steering reaction force.

    ELECTRIC POWER STEERING SYSTEM
    10.
    发明公开
    ELECTRIC POWER STEERING SYSTEM 审中-公开
    电动转向系统

    公开(公告)号：EP3018038A2

    公开(公告)日：2016-05-11

    申请号：EP15192714.2

    申请日：2015-11-03

    申请人： JTEKT CORPORATION

    发明人： MAEDA, Shingo ,  TAMAIZUMI, Terutaka ,  ITAMOTO, Hidenori

    IPC分类号： B62D5/04

    CPC分类号： B62D5/0463 ,  B62D5/0481 ,  B62D6/04

    摘要： An electric power steering system includes a control unit (40) configured to: compute an assist control amount (current amount), based on multiple kinds of state quantities indicating a steering state; control a motor (31) based on the assist control amount, the motor (31) being a source of assist force applied to a steering system of a vehicle; individually set, for the respective state quantities, limiting values that limit a variation range of the assist control amount, based on the respective state quantities used to compute the assist control amount; limit a value of the assist control amount using the limiting values; acquire a command value generated by a host control unit (55) to change the assist control amount; and take the command value into account in setting of at least one of the limiting values, when executing control of the motor based on the assist control amount that reflects the command value.

    摘要翻译： 本发明提供一种电动动力转向装置，其具备：控制部（40），其根据表示转向状态的多种状态量，计算辅助控制量（电流量） 基于所述辅助控制量来控制马达（31），所述马达（31）是作用于车辆的转向系统的辅助力的来源; 基于用于计算所述辅助控制量的各个状态量，针对各个状态量分别设定限制所述辅助控制量的变化范围的限制值; 使用限制值来限制辅助控制量的值; 获取由主控制单元（55）生成的命令值以改变辅助控制量; 并且在基于反映所述指令值的辅助控制量执行所述电动机的控制时，在设定至少一个所述极限值时考虑所述指令值。