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29 条记录 (耗时 0.021 秒)

    Vehicle attitude control apparatus
    2.
    发明授权
    Vehicle attitude control apparatus 有权
    车辆姿态控制装置

    公开(公告)号：US06470250B2

    公开(公告)日：2002-10-22

    申请号：US09874605

    申请日：2001-06-05

    申请人： Katsutoshi Nishizaki ,  Shiro Nakano ,  Masaya Segawa ,  Ryouhei Hayama ,  Kazuhiro Kato

    发明人： Katsutoshi Nishizaki ,  Shiro Nakano ,  Masaya Segawa ,  Ryouhei Hayama ,  Kazuhiro Kato

    IPC分类号： B62D600

    CPC分类号： B60T8/246 ,  B60T8/1755 ,  B60T8/58 ,  B60T2260/02 ,  B62D6/003

    摘要： A vehicle attitude control apparatus, wherein a corrected behavior index value for steering is determined in such a manner that the deviation between a target behavior index value for a vehicle and a corrected behavior index value for steering decreases, as an instability index value correlating to the amount of under-steer increases, and when the target behavior index value and the behavior index value are equal, the corrected behavior index value for steering is set to equal the behavior index value. A corrected behavior index value for braking is determined in such a manner that the deviation between the target behavior index value and a corrected behavior index value for braking increases, as the instability index value increases, and when the target behavior index value and the behavior index value are equal, the corrected behavior index value for braking is set to equal the behavior index value. The steering actuator and braking forces are controlled in such a manner that, when not in the state of under-steer, the behavior index value follows the target behavior index value, and when in the state of under-steer, the corrected behavior index value for steering and corrected behavior index value for braking follow the target behavior index value.

    摘要翻译： 一种车辆姿态控制装置，其特征在于，以与所述车辆的行驶指标值相关的不稳定性指标值作为与车辆的目标行为指标值的偏差相对应的不稳定性指标值， 转向量增加，当目标行为指标值和行为指标值相等时，将转向的修正行为指标值设定为等于行为指标值。 确定用于制动的修正行为指标值，使得目标行为指数值与用于制动的修正行为指标值之间的偏差随着不稳定性指标值的增加而增加，并且当目标行为指数值和行为指数 值相等时，将用于制动的修正行为指标值设定为等于行为指标值。 控制转向执行器和制动力的方式是，当不处于转向不足的状态时，行为指标值跟随目标行为指标值，并且当处于转向不足状态时，校正行为指数值 用于制动的转向和修正行为指标值遵循目标行为指标值。

    Motor vehicle steering system
    3.
    发明授权
    Motor vehicle steering system 有权

    公开(公告)号：US06442462B1

    公开(公告)日：2002-08-27

    申请号：US09985063

    申请日：2001-11-01

    申请人： Katsutoshi Nishizaki ,  Shiro Nakano ,  Masaya Segawa ,  Ryouhei Hayama

    发明人： Katsutoshi Nishizaki ,  Shiro Nakano ,  Masaya Segawa ,  Ryouhei Hayama

    IPC分类号： B62D504

    CPC分类号： B62D5/006 ,  B62D5/003

    摘要： A motor vehicle steering system is provided which includes: an operation member for steering a motor vehicle; a steering mechanism for turning steerable wheels of the motor vehicle; a first actuator and a second actuator each operative to apply a driving force to the steering mechanism; and a clutch mechanism operative to mechanically engage and disengage the operation member to or from the steering mechanism. When the first and second actuators operate normally, the clutch mechanism is brought into the disengaged state, and a driving force is applied to the steering mechanism from the first and second actuators and, when one of the first and second actuators malfunctions, the clutch mechanism is brought into the engaged state, and the steering assist force is generated by the other normal actuator in accordance with the operation of the operation member.

    Electric power steering system
    4.
    发明授权
    Electric power steering system 有权
    电动助力转向系统

    公开(公告)号：US06364051B1

    公开(公告)日：2002-04-02

    申请号：US09679633

    申请日：2000-10-05

    申请人： Tomoyasu Kada ,  Shiro Nakano ,  Katsutoshi Nishizaki ,  Takanobu Takamatsu ,  Masaya Segawa ,  Ryouhei Hayama

    发明人： Tomoyasu Kada ,  Shiro Nakano ,  Katsutoshi Nishizaki ,  Takanobu Takamatsu ,  Masaya Segawa ,  Ryouhei Hayama

    IPC分类号： B60D504

    CPC分类号： B62D5/0463

    摘要： An electric power steering system which assists a steering operation by controlling an electric motor on the basis of a target electric current determined in accordance with a steering torque applied to an operation member and applying a driving force to a steering mechanism from the electric motor. The system includes steering torque detecting section; target electric current determining circuit for determining a target electric current in accordance with the steering torque on the basis of an assist characteristic; and motor controlling circuit for controlling the electric motor on the basis of the target electric current. The assist characteristic is offset from an initial characteristic when a motor vehicle incorporating the system is in a predetermined turning state.

    摘要翻译： 一种电动助力转向系统，其通过基于根据施加到操作构件的转向扭矩确定的目标电流来控制电动机来辅助转向操作，并且从电动机向转向机构施加驱动力。 该系统包括转向扭矩检测部分; 目标电流确定电路，用于根据辅助特性根据转向转矩确定目标电流; 以及基于目标电流来控制电动机的电动机控制电路。 当包含系统的机动车辆处于预定的转动状态时，辅助特性偏离初始特性。

    Vehicle attitude control apparatus
    5.
    发明授权
    Vehicle attitude control apparatus 有权
    车辆姿态控制装置

    公开(公告)号：US06415215B1

    公开(公告)日：2002-07-02

    申请号：US09777793

    申请日：2001-02-06

    申请人： Katsutoshi Nishizaki ,  Shiro Nakano ,  Masaya Segawa ,  Ryouhei Hayama

    发明人： Katsutoshi Nishizaki ,  Shiro Nakano ,  Masaya Segawa ,  Ryouhei Hayama

    IPC分类号： B60T824

    CPC分类号： B60T8/1755 ,  B60T2260/02 ,  B62D6/003 ,  B62D6/008

    摘要： In a vehicle attitude control apparatus, a steering actuator is controlled so that a steering angle matches a target steering angle. In an understeer condition; the braking force on the inside wheels is increased and drive power applied to the outside wheels is larger than applied to inside wheels. In an oversteer condition, the braking force on the outside wheels is increased and drive power applied to the inside wheels is larger than applied to outside wheels. The steering actuator is controlled so that a behavior index value corresponding to the change in the vehicle'behavior, that occurs based on the change in the steering angle, matches a target behavior index value that reflects the amount of operation of an operation member. A vehicle yaw moment and an amount of control of the steering actuator vary due to steer conditions, wheel lateral slip angle and brake force control.

    摘要翻译： 在车辆姿态控制装置中，转向致动器被控制成使得转向角与目标转向角匹配。 在转向不足的情况下 内轮上的制动力增加，施加到外轮的驱动力大于施加到内轮上。 在过度转向条件下，外轮上的制动力增大，施加在内侧车轮上的驱动力大于施加在外轮上。 控制转向致动器，使得与基于转向角的变化而发生的车辆行为的变化相对应的行为指标值与反映操作构件的操作量的目标行为指标值相匹配。 转向执行器的车辆横摆力矩和控制量由于转向条件，车轮横向滑移角和制动力控制而变化。

    Steering device
    8.
    发明授权
    Steering device 失效

    公开(公告)号：US06516916B2

    公开(公告)日：2003-02-11

    申请号：US10079796

    申请日：2002-02-20

    申请人： Masaya Segawa ,  Shirou Nakano ,  Katsutoshi Nishizaki ,  Ryouhei Hayama ,  Takanobu Takamatsu ,  Masanori Arima

    发明人： Masaya Segawa ,  Shirou Nakano ,  Katsutoshi Nishizaki ,  Ryouhei Hayama ,  Takanobu Takamatsu ,  Masanori Arima

    IPC分类号： B62D504

    CPC分类号： B62D6/002 ,  B62D5/008

    摘要： In a steering device, the rotation of the input shaft corresponding to the steering operation is transmitted to the output shaft via a rotation transmission mechanism, and is transmitted from the output shaft to the wheels of the vehicle by a steering gear so that the steering angle varies. A control device controls an electromotive actuator used to drive a constituent element of the rotation transmission mechanism in accordance with a variable quantity that expresses the traveling conditions of the vehicle, on the basis of the respective detection values of an input sensor used to detect the amount of input into the input shaft, an output sensor used to detect the amount of output of the output shaft and a traveling condition sensor used to detect the variable quantity that expresses the traveling conditions of the vehicle, so that the ratio of the transmission of rotation from the input shaft to the output shaft is altered in accordance with the variable quantity that expresses the traveling conditions.

    Steering device for vehicle
    10.
    发明授权
    Steering device for vehicle 有权
    车辆转向装置

    公开(公告)号：US06449543B2

    公开(公告)日：2002-09-10

    申请号：US09760991

    申请日：2001-01-16

    申请人： Katsutoshi Nishizaki ,  Shiro Nakano ,  Takanobu Takamatsu ,  Masaya Segawa

    发明人： Katsutoshi Nishizaki ,  Shiro Nakano ,  Takanobu Takamatsu ,  Masaya Segawa

    IPC分类号： B62D500

    CPC分类号： B62D6/003 ,  B62D5/006 ,  B62D6/008

    摘要： In a steering device for vehicle, the movement of a steering actuator, which is driven in accordance with the rotating operation of an operating member, is transmitted to the vehicle wheels such that the steering angle changes without mechanically coupling the operating member to the wheels. A target yaw rate, which accords with a load torque, that is sum of the control torque generated by an operating actuator and driver operating torque, and an operating angle of the operating member resulting from the functioning of this load torque, are computed. The steering actuator is controlled such that the vehicle yaw rate follows the target yaw rate. The operating actuator is controlled such that the operating angle follows a target operating angle of the operating member corresponding to a behavior index value comprising at least yaw rate of the vehicle.

    摘要翻译： 在用于车辆的转向装置中，根据操作构件的旋转操作而驱动的转向致动器的运动被传递到车轮，使得转向角改变而不将操作构件机械地联接到车轮。 计算与由操作致动器产生的控制扭矩和驾驶员操作扭矩之和的负载转矩以及由该负载转矩的功能产生的操作构件的操作角度的目标横摆角速度。 控制转向致动器使得车辆偏航率遵循目标横摆率。 控制操作致动器，使得操作角度遵循与包括车辆的至少横摆率的行为指标值相对应的操作构件的目标操作角度。