公开(公告)号：US08224528B2

公开(公告)日：2012-07-17

申请号：US12060573

申请日：2008-04-01

申请人： Ryouhei Hayama ,  Tomoyasu Kada ,  Shingo Maeda ,  Shuuji Kimura

发明人： Ryouhei Hayama ,  Tomoyasu Kada ,  Shingo Maeda ,  Shuuji Kimura

IPC分类号： A01B69/00

CPC分类号： B62D5/001 ,  B62D6/002 ,  B62D6/003

摘要： A steered shaft of a steered mechanism is rigidly fixed to a vehicle body. Steering-stiffness is reduced by a lowpass filter for filtering a steered angle detected by a steered angle sensor. A deviation between a target steered angle and the filtered steered angle detected by the steered angle sensor is input to a PID control unit. A gain setting unit sets each of gains for PID control at a low value to thereby reduce steering-stiffness. The PID control unit outputs a target current. A drive circuit performs, e.g., PID control of the steering actuator.

摘要翻译： 转向机构的转向轴刚性地固定在车体上。 通过用于过滤由转向角度传感器检测到的转向角度的低通滤波器来减少转向刚度。 通过转向角传感器检测到的目标转向角与滤波转向角之间的偏差被输入到PID控制部。 增益设定单元将PID控制的增益设定为低值，从而降低转向刚度。 PID控制单元输出目标电流。 驱动电路执行例如转向致动器的PID控制。

公开(公告)号：US20120095648A1

公开(公告)日：2012-04-19

申请号：US13270801

申请日：2011-10-11

申请人： Ryouhei HAYAMA

发明人： Ryouhei HAYAMA

IPC分类号： G05G1/10 ,  B62D6/00

CPC分类号： B62D1/043 ,  B62D5/006 ,  B66F9/07568

摘要： A motor vehicle steering system includes a knob that is for rotating a wheel of a steering member, has a knob center, and is supported rotatably around the knob center by the wheel. A control unit sets a predetermined period after detection of gripping on the knob by a grip detection device as a transfer period for transfer from reaction force application only by a wheel reaction force actuator to reaction force application only by a knob reaction force actuator. In the transfer period, the knob reaction force is increased with time and the wheel reaction force is reduced with time.

摘要翻译： 一种机动车辆转向系统，包括用于旋转转向构件的车轮的旋钮，具有旋钮中心，并且通过车轮可旋转地围绕旋钮中心支撑。 控制单元在通过手柄检测装置检测到把手之后的预定时间期间，作为从反作用力转移的转移时段，仅通过车轮反作用力致动器仅通过旋钮反作用力致动器施加到反力施加。 在传送期间，旋钮反作用力随着时间的推移而增加，并且轮反作用力随时间而减小。

公开(公告)号：US07862084B2

公开(公告)日：2011-01-04

申请号：US12205127

申请日：2008-09-05

申请人： Shingo Maeda ,  Ryouhei Hayama ,  Sadahiro Kawahara ,  Shiro Nakano ,  Kou Shiba

发明人： Shingo Maeda ,  Ryouhei Hayama ,  Sadahiro Kawahara ,  Shiro Nakano ,  Kou Shiba

IPC分类号： B62D1/18

CPC分类号： B62D1/04 ,  B60K37/00 ,  B60K2350/407 ,  B60R13/0256 ,  B60R13/0275 ,  B62D1/06 ,  B62D1/181 ,  B62D1/183

摘要： A vehicle steering apparatus, includes a steering member for rotational operation, a support mechanism that supports the steering member so as to be movable between a housing position where the steering member is housed in a fixed frame of an instrument panel and a projection position where the steering member projects to an outside of the fixed frame, and that regulates an attitude of the steering member located between the housing position and the projection position, and a movable frame that moves together with the steering member, and that constitutes a part of the instrument panel by covering an opening formed in the fixed frame of the instrument panel when the steering member is housed at the housing position.

摘要翻译： 一种车辆转向装置，包括用于旋转操作的转向构件，支撑机构，其支撑所述转向构件，以便能够在所述操纵构件容纳在仪表板的固定框架中的壳体位置与所述操纵构件的所​​述突出位置之间移动 转向构件突出到固定框架的外侧，并且调节位于壳体位置和突出位置之间的转向构件的姿态，以及可移动框架，其与转向构件一起移动，并且构成仪器的一部分 当转向构件容纳在壳体位置时，覆盖形成在仪表板的固定框架中的开口。

公开(公告)号：US20100318264A1

公开(公告)日：2010-12-16

申请号：US12521578

申请日：2007-12-20

申请人： Shingo Maeda ,  Masami Naka ,  Ryouhei Hayama ,  Kenji Higashi

发明人： Shingo Maeda ,  Masami Naka ,  Ryouhei Hayama ,  Kenji Higashi

IPC分类号： G06F19/00 ,  B62D6/00

CPC分类号： B62D5/003 ,  B62D5/001 ,  B62D5/006 ,  B62D5/0463 ,  B62D6/008

摘要： A control section (10) of a vehicle steering system has a steer-by-wire mode, a power steering mode, and a transition mode. In the steer-by-wire mode, a steering actuator (19) is controlled for steering and a reaction force actuator (11) is controlled for reaction force. In the power steering mode, steering assistance control is performed with either of the steering actuator (19) and the reaction force actuator (11) caused to function as an assistance unit. In the transition mode, in a transition period from either of the steer-by-wire mode and the power steering mode to the other, the reaction force actuator (11) is controlled for reaction force.

摘要翻译： 车辆转向系统的控制部分（10）具有转向线模式，动力转向模式和转换模式。 在线控转向模式中，转向致动器（19）被控制用于转向，并且反作用力致动器（11）被控制用于反作用力。 在动力转向模式中，转向辅助控制是通过转向驱动器（19）和反作用力致动器（11）中的任一个作为辅助单元进行的。 在过渡模式中，在从线控转向模式和动力转向模式到另一转向模式的转换期间，反作用力致动器（11）被控制用于反作用力。

公开(公告)号：US20100057301A1

公开(公告)日：2010-03-04

申请号：US12515278

申请日：2007-11-06

申请人： Ryouhei Hayama ,  Kenji Higashi ,  Shingo Maeda

发明人： Ryouhei Hayama ,  Kenji Higashi ,  Shingo Maeda

IPC分类号： B62D6/00

CPC分类号： B62D5/003 ,  B62D1/163 ,  B62D5/0481

摘要： A vehicle steering device (1) has a steering actuator (14) for steerable wheels (5) to be steered according to operation of a steering member (2), a transmission mechanism (18) including cables (22, 23), a connection mechanism (19) for allowing and interrupting mechanical connection between the steering member (2) and the wheels (5), and control unit (9). When the steering actuator (14) is normal, the control unit (9) causes the connection mechanism (19) to release mechanical connection between the steering member (2) and the wheels (5) and drives and controls the steering actuator (14) according to operation of the steering member (2). The control unit (9) includes a fail detecting section (29) for detecting, when the steering actuator (14) is normal, a fail of the transmission mechanism (18) based on a load on the steering actuator (14).

摘要翻译： 一种车辆转向装置（1）具有用于转向轮（5）的转向致动器（14），以根据转向构件（2）的操作转向;传动机构（18），包括电缆（22,23），连接 用于允许和中断转向构件（2）和轮（5）之间的机械连接的机构（19）和控制单元（9）。 当转向致动器（14）正常时，控制单元（9）使得连接机构（19）释放转向构件（2）和车轮（5）之间的机械连接并且驱动和控制转向致动器（14） 根据转向构件（2）的操作。 控制单元（9）包括故障检测部（29），用于当转向致动器（14）正常时基于转向致动器（14）上的负载来检测变速机构（18）的故障。

公开(公告)号：US20080243341A1

公开(公告)日：2008-10-02

申请号：US12060573

申请日：2008-04-01

申请人： Ryouhei HAYAMA ,  Tomoyasu Kada ,  Shingo Maeda ,  Shuuji Kimura

发明人： Ryouhei HAYAMA ,  Tomoyasu Kada ,  Shingo Maeda ,  Shuuji Kimura

IPC分类号： G06F19/00

CPC分类号： B62D5/001 ,  B62D6/002 ,  B62D6/003

摘要： A steered shaft of a steered mechanism is rigidly fixed to a vehicle body. Steering-stiffness is reduced by a lowpass filter for filtering a steered angle detected by a steered angle sensor. A deviation between a target steered angle and the filtered steered angle detected by the steered angle sensor is input to a PID control unit. A gain setting unit sets each of gains for PID control at a low value to thereby reduce steering-stiffness. The PID control unit outputs a target current. A drive circuit performs, e.g., PID control of the steering actuator.

摘要翻译： 转向机构的转向轴刚性地固定在车体上。 通过用于过滤由转向角度传感器检测到的转向角度的低通滤波器来减少转向刚度。 通过转向角传感器检测到的目标转向角与滤波转向角之间的偏差被输入到PID控制部。 增益设定单元将PID控制的增益设定为低值，从而降低转向刚度。 PID控制单元输出目标电流。 驱动电路执行例如转向致动器的PID控制。

公开(公告)号：US20070265752A1

公开(公告)日：2007-11-15

申请号：US11797657

申请日：2007-05-04

申请人： Ryouhei Hayama ,  Shiro Nakano ,  Tomoyasu Kada

发明人： Ryouhei Hayama ,  Shiro Nakano ,  Tomoyasu Kada

IPC分类号： B62D6/00

CPC分类号： B62D6/003 ,  B62D6/007 ,  B62D6/008

摘要： A motor vehicle steering system steers vehicle wheels in response to the operation of an operation member for steering a vehicle. The system includes a rutted road judging unit which judges whether the vehicle is driving on a rutted road or not, and a steering enhancement control unit which enhances steering of vehicle wheels in response to operation of the operation member when the rutted road judging unit judges that the vehicle is driving on a rutted road than when the rutted road judging unit judges that the vehicle is not driving on a rutted road.

摘要翻译： 响应于用于转向车辆的操作构件的操作，机动车辆转向系统转向车轮。 该系统包括：车辙道路判断单元，其判断车辆是否在车辙道路上行驶;以及转向增强控制单元，其在车辙道路判断单元判断为该车辙道路判断单元时响应于操作构件的操作而增强车轮的转向 车辆在车辙路上驾驶时，比起车辙道路判断单元判断车辆未在车辙路上行驶时。

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.

公开(公告)号：US06382345B2

公开(公告)日：2002-05-07

申请号：US09778713

申请日：2001-02-08

申请人： Tomoyasu Kada ,  Shiro Nakano ,  Ryouhei Hayama

发明人： Tomoyasu Kada ,  Shiro Nakano ,  Ryouhei Hayama

IPC分类号： B62D504

CPC分类号： B62D6/007 ,  B62D5/0463

摘要： An electric power steering system, which controls an electric motor on the basis of a target electric current determined in accordance with a steering torque and applies a driving force from the electric motor to a steering mechanism. The system includes: a steering torque sensor; a target current setting circuit for determining the target electric current in accordance with the steering torque on the basis of an assist characteristic indicative of a relationship between the steering torque and the target electric current; a motor controlling circuit for controlling the electric motor on the basis of the target electric current; a traveling state judging circuit for judging whether or not a motor vehicle is in a slalom traveling state; and an assist characteristic modifying circuit for offsetting the assist characteristic from an initial characteristic level when the motor vehicle is in the slalom traveling state.

摘要翻译： 一种电动助力转向系统，其基于根据转向转矩确定的目标电流来控制电动机，并将来自电动机的驱动力施加到转向机构。 该系统包括：转向扭矩传感器; 目标电流设定电路，用于根据表示转向转矩与目标电流之间的关系的辅助特性，根据转向转矩来确定目标电流; 基于目标电流控制电动机的电动机控制电路; 行驶状态判断电路，用于判断机动车辆是否处于障碍物行驶状态; 以及辅助特性修正电路，用于当所述机动车辆处于所述回转行进状态时，将辅助特性与初始特性水平相抵消。

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。