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1. 发明授权

US06364051B1 Electric power steering system 有权
标题翻译：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。

2. 发明授权

US06470250B2 Vehicle attitude control apparatus 有权
标题翻译：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。

3. 发明授权

US06415215B1 Vehicle attitude control apparatus 有权
标题翻译：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。

4. 发明授权

US06442462B1 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.

5. 发明授权

US06450592B1 Motor vehicle braking system 有权
公开(公告)号：US06450592B1
公开(公告)日：2002-09-17
申请号：US09873307
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： B60T860
CPC分类号： B60T8/246 , B60T8/1755 , B60T8/505 , B60T8/58 , B60T2260/02 , B60T2260/024 , B62D6/002
摘要： A braking system for a motor vehicle is provided, which has an attitude control function. The system includes: a first attitude control circuit for stabilizing the behavior of the motor vehicle by controlling the operation of a steering mechanism of the motor vehicle; a second attitude control circuit for stabilizing the behavior of the motor vehicle by controlling a braking mechanism for applying a braking force to vehicle wheels of the motor vehicle; and a braking control circuit for causing the braking mechanism to generate a maximum braking force on condition that an attitude control is performed for the stabilization of the behavior of the motor vehicle by the first attitude control circuit when a braking command is inputted thereto.

6. 发明授权

US06449543B2 Steering device for vehicle 有权
标题翻译：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。

7. 发明授权

US06415212B1 Steering device for vehicle 有权
公开(公告)号：US06415212B1
公开(公告)日：2002-07-02
申请号：US09764498
申请日：2001-01-17
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： B62D600
摘要： In a steering device for a vehicle, the movement of a steering actuator driven by operation of an operating member is transmitted to vehicle wheels, in such a manner that the steering angle changes, without the operating member being coupled mechanically to the vehicle wheels. A first target yaw rate is calculated in accordance with the detected vehicle speed and a first steering angle set value, which corresponds to the detected amount of operation and vehicle speed. A second target yaw rate corresponding to the detected lateral acceleration and vehicle speed is calculated. A second steering angle set value, which corresponds to the difference between the detected yaw rate and a target yaw rate, as which the first target yaw rate or the second target yaw rate whichever has the smaller absolute value is taken, is calculated. The steering angle actuator is controlled in such a manner that the steering angle corresponds to the target steering angle, that is the sum of the first steering angle set value and the second steering angle set value.

8. 发明授权

US06349789B1 Steering device for vehicles 有权
标题翻译：车辆转向装置
公开(公告)号：US06349789B1
公开(公告)日：2002-02-26
申请号：US09530640
申请日：2000-04-27
申请人： Shiro Nakano , Katsutoshi Nishizaki , Masaya Segawa , Naoki Maeda , Takanobu Takamatsu
发明人： Shiro Nakano , Katsutoshi Nishizaki , Masaya Segawa , Naoki Maeda , Takanobu Takamatsu
IPC分类号： B62D502
CPC分类号： B62D6/008 , B60T8/1755 , B60T8/246 , B60T8/58 , B60T2260/02 , B60T2260/09 , B62D5/0472 , B62D6/04
摘要： A steering device for vehicles transmits steering torque applied by the driver to wheels. When at least one of braking force and driving force of the wheels is controlled for stabilization of vehicle behavior, steering torque is controlled to cancel out change in the steering torque due to the stabilization according to change in at least one of the braking force and driving force due to the control for the stabilization.
摘要翻译：用于车辆的转向装置将由驾驶员施加的转向扭矩传递到车轮。当控制车辆的制动力和驱动力中的至少一个来控制车辆行为的稳定时，控制转向扭矩以抵消由于根据制动力和驾驶中的至少一个的变化的稳定性而导致的转向转矩的变化由于控制力的稳定。

9. 发明申请

US20070265752A1 Motor vehicle steering system 有权
标题翻译：机动车转向系统
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。

10. 发明授权

US06382345B2 Electric power steering system 失效
标题翻译：电动助力转向系统
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。

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