公开(公告)号：US6154696A

公开(公告)日：2000-11-28

申请号：US184971

申请日：1998-11-03

申请人： Yutaka Nishi ,  Yasuharu Oyama ,  Yasuji Shibahata ,  Takashi Nishimori ,  Kazushige Sugamata ,  Hiroyuki Kawagoe

发明人： Yutaka Nishi ,  Yasuharu Oyama ,  Yasuji Shibahata ,  Takashi Nishimori ,  Kazushige Sugamata ,  Hiroyuki Kawagoe

IPC分类号： B62D5/04 ,  B62D6/00 ,  B62D6/04 ,  B62D119/00 ,  B62D137/00 ,  G06F7/00 ,  G06F17/00 ,  G06F19/00

CPC分类号： B62D5/0472 ,  B60T2260/024

摘要： In a steering control system for controlling torque steer in a vehicle equipped with an electric power steering device and a torque split arrangement for individually controlling traction and/or braking force of right and left wheels, a difference in traction and/or braking force between the right and left wheels which may be produced by the torque split arrangement may give rise to torque steer depending on the geometry of the wheel suspension system of the vehicle. The control unit for the electric power steering device additionally receives an additional signal for providing an additional steering torque which is required for canceling the torque steer. Thus, the torque steer can be eliminated both economically and reliably without requiring to modify the wheel suspension system.

摘要翻译： 在配备有电动助力转向装置的车辆中用于控制扭矩转向的转向控制系统和用于单独控制左右车轮的牵引力和/或制动力的转矩分配装置中，牵引力和/或制动力之间的差异 可以通过扭矩分配装置产生的左右车轮可以根据车辆的车轮悬挂系统的几何形状产生扭矩转向。 用于电动助力转向装置的控制单元另外接收附加信号以提供用于消除扭矩转向所需的附加转向转矩。 因此，在不需要修改车轮悬架系统的情况下，可以经济地和可靠地消除扭矩转向。

公开(公告)号：US20050217921A1

公开(公告)日：2005-10-06

申请号：US11093151

申请日：2005-03-30

申请人： Atsushi Mori ,  Yasuji Shibahata

发明人： Atsushi Mori ,  Yasuji Shibahata

IPC分类号： B60K17/348 ,  B60K17/35 ,  B60K23/08 ,  F16H59/00

CPC分类号： B60K17/35 ,  B60K23/0808 ,  B60W2520/125 ,  B60W2520/14 ,  B60W2710/105

摘要： A drive force control method for a four-wheel drive vehicle including a torque distributing mechanism capable of changing a drive force distribution ratio between front and rear wheels and a drive force distribution ratio between right and left front wheels or between right and left rear wheels. This method includes the steps of increasing the drive force distribution ratio of the rear wheels to the front wheels according to an increase in absolute value of a lateral G signal, and increasing the drive force distribution ratio of a turning outer wheel as one of the right and left front wheels or one of the right and left rear wheels to a turning inner wheel as the other. A lateral G sensor signal is corrected by an estimated lateral G signal calculated according to a steering angle and a vehicle speed to obtain a control lateral G signal, which is used as the lateral G signal.

摘要翻译： 一种用于四轮驱动车辆的驱动力控制方法，其包括能够改变前轮和后轮之间的驱动力分配比的扭矩分配机构和左右前轮之间或左右后轮之间的驱动力分配比。 该方法包括根据横向G信号的绝对值的增加来增加后轮与前轮的驱动力分配比率的步骤，并且将转向外轮的驱动力分配比提高为右侧 并且将前轮或左右后轮中的一个左右彼此分离成转向内轮。 横向G传感器信号通过根据转向角和车速计算出的估计横向G信号来校正，以获得用作横向G信号的控制横向G信号。

公开(公告)号：US06233513B1

公开(公告)日：2001-05-15

申请号：US09192894

申请日：1998-11-17

申请人： Yoshimi Furukawa ,  Yasuji Shibahata ,  Masato Abe

发明人： Yoshimi Furukawa ,  Yasuji Shibahata ,  Masato Abe

IPC分类号： G06F700

CPC分类号： B62D6/04 ,  B60T2230/02

摘要： Provided are a method and system for computing a vehicle body slip angle in the vehicle movement control so as to allow the vehicle movement to be controlled with an adequate response and stability for practical purposes even without directly detecting or accurately estimating the frictional coefficient between the road surface and the tire. A tire slip angle is computed from a yaw rate, a vehicle speed, a vehicle body slip angle and a road wheel steering angle; a cornering force is computed from a dynamic model of the tire by taking into account at least the tire slip angle; and a hypothetical vehicle body slip angle is computed from the cornering force, the vehicle speed and the yaw rate; the tire slip angle being computed by feeding back the hypothetical vehicle body slip angle in a recursive manner.

摘要翻译： 提供了一种用于在车辆运动控制中计算车体滑动角度的方法和系统，以便即使在不直接检测或精确地估计道路之间的摩擦系数的情况下，也可以以适当的响应和稳定性来控制车辆运动 表面和轮胎。 从偏航率，车速，车体滑移角和车轮转向角计算轮胎滑移角; 通过考虑至少轮胎滑移角度，从轮胎的动态模型计算出转弯力; 并且从转弯力，车速和横摆率计算出假想的车体滑移角; 通过以递归的方式反馈假想车身滑移角来计算轮胎滑移角。

公开(公告)号：US5896941A

公开(公告)日：1999-04-27

申请号：US747089

申请日：1996-11-13

申请人： Hajime Kajiwara ,  Yasuji Shibahata

发明人： Hajime Kajiwara ,  Yasuji Shibahata

IPC分类号： B60G3/18 ,  B60G3/20 ,  B60K17/16

CPC分类号： B60G3/20

摘要： A suspension system for the steered wheels of a vehicle include knuckles, the lower portions of which are pivotally supported at tip ends of a lower arm and a radius rod through two ball joints. Each of the steered wheels is steered about a phantom king pin axis passing through an intersection a of extensions of the lower arm and the radius rod so that, during clockwise turning of the vehicle, the point a of an outer wheel during turning of the vehicle is little moved, but the point a of an inner wheel during turning of the vehicle is moved inwards of a vehicle body through a distance .alpha..sub.R whereby a distance between a ground point of the inner wheel and the phantom king pin axis is larger than a distance between a ground point of the outer wheel and the phantom king pin axis and, hence, left and right steering moments generated by driving forces of the left and right steered wheels are countervailed with each other, whereby the generation of unnecessary steering moments is prevented as a whole.

摘要翻译： 用于车辆转向轮的悬挂系统包括转向节，转向节通过两个球形接头枢转地支撑在下臂的前端和半径杆上。 每个转向轮围绕幻影主销轴线转向，通过下臂和半径杆的延伸部分的相交处，使得在车辆的顺时针转动期间，在车辆转动期间外轮的点a 但是在车辆转动期间内轮的点a从车身向内移动距离αR，从而内轮的接地点和幻影主销轴之间的距离大于 外轮的地面点与幻影主销轴线之间的距离以及左右转向轮的驱动力产生的左右转向力矩相互抵消，从而防止产生不必要的转向力矩 作为一个整体。

公开(公告)号：US5893812A

公开(公告)日：1999-04-13

申请号：US857562

申请日：1997-05-16

申请人： Katsuyuki Narai ,  Katsuhiro Kitamura ,  Kazuyoshi Kuwahara ,  Kenji Honda ,  Tetsushi Asano ,  Yasuji Shibahata ,  Kazuhiro Wada ,  Koji Yokomizo

发明人： Katsuyuki Narai ,  Katsuhiro Kitamura ,  Kazuyoshi Kuwahara ,  Kenji Honda ,  Tetsushi Asano ,  Yasuji Shibahata ,  Kazuhiro Wada ,  Koji Yokomizo

IPC分类号： B60K17/00 ,  B60K17/16 ,  B60K23/04 ,  F16H48/20

CPC分类号： B60K17/16 ,  B60K23/04 ,  B60K17/00

摘要： A driving force distributing device is provided for distributing a driving force of an engine to the left and right wheels of a vehicle by bringing a pair of hydraulic clutches into and out of their engaged states. The distributing device includes a hydraulic pump mounted within a casing thereof and driven through gears by a half shaft connected to one of the wheels. An oil passage interconnects the hydraulic pump and the hydraulic clutches, the oil passage being defined in a casing. A valve block is coupled to an upper surface of the casing. Thus, the oil passages interconnecting the hydraulic pump and the hydraulic clutches of the driving force distributing device can be compactly formed.

摘要翻译： 驱动力分配装置用于通过使一对液压离合器进入和离开其接合状态来分配发动机的驱动力到车辆的左右轮。 分配装置包括安装在其壳体内的液压泵，并通过连接到一个车轮的半轴通过齿轮驱动。 油路将液压泵和液压离合器相互连接，油路限定在壳体中。 阀块联接到壳体的上表面。 因此，可以紧凑地形成将液压泵与驱动力分配装置的液压离合器相互连接的油路。

公开(公告)号：US5518463A

公开(公告)日：1996-05-21

申请号：US439105

申请日：1995-05-11

申请人： Yasuji Shibahata ,  Shoji Tokushima

发明人： Yasuji Shibahata ,  Shoji Tokushima

IPC分类号： B60K17/10 ,  B60K23/04 ,  F16H48/20 ,  F16H47/04

CPC分类号： F16H48/27 ,  B60K23/04 ,  F16H48/10 ,  F16H48/30 ,  F16H48/32 ,  F16H48/36 ,  B60K17/105 ,  F16H2048/204 ,  F16H2048/364

摘要： A torque distributing mechanism includes a first and a second planetary gear mechanism. Among pairs of planetary carriers, ring gears and sun gears in these planetary gear mechanisms, one of the pairs are coupled to two output elements of a differential; another pair are relatively non-rotatably connected to each other, and one of the components of the remaining pair is fixed, while the other is connected to a driving source. Thus, it is possible to reduce the diametrical dimension and weight of the torque distributing mechanism and to improve the degree of freedom in design.

公开(公告)号：US4889204A

公开(公告)日：1989-12-26

申请号：US259680

申请日：1988-10-19

申请人： Kunitaka Furuya ,  Yasuji Shibahata

发明人： Kunitaka Furuya ,  Yasuji Shibahata

IPC分类号： B60K17/348 ,  B60K23/08

CPC分类号： B60K23/0808

摘要： A drive force distribution control system in a four-wheel drive motor vehicle for distributing drive forces from an engine of the motor vehicle to first and second wheels of the motor vehicle includes drive force distributing means for distributing and transmitting the drive forces to the first and second wheels, first speed detecting means for detecting a rotational speed (Nf) of the first wheel, second speed detecting means for detecting a rotational speed (Nr) of the second wheel, torque detecting means for detecting a torque (Tr) transmitted to the second wheel, and control means for controlling the drive force distributing means. The control means for calculating a slip ratio (S) of the second wheel to a road on which the motor vehicle is running based on the rotational speeds of the first and second wheels, calculating a ratio (Tr/S) between the torque (Tr) and the slip ratio (S), determining a distribution ratio between the drive forces to be distributed to the first and second wheels based on the ratio between the torque and the slip ratio, and controlling the drive force distributing means to distribute and transmit the drive forces to the first and second wheels according to the distribution ratio.

公开(公告)号：US4666013A

公开(公告)日：1987-05-19

申请号：US695478

申请日：1985-01-28

申请人： Yasuji Shibahata ,  Yukio Fukunaga ,  Kenji Nakamura ,  Yasumasa Tsubota ,  Namio Irie ,  Junsuke Kuroki

发明人： Yasuji Shibahata ,  Yukio Fukunaga ,  Kenji Nakamura ,  Yasumasa Tsubota ,  Namio Irie ,  Junsuke Kuroki

IPC分类号： B62D6/02 ,  B62D6/04 ,  B62D7/14 ,  B62D7/15 ,  B62D5/00

CPC分类号： B62D7/159 ,  B62D7/146 ,  B60G2202/32 ,  B60G2202/322 ,  B60G2206/1116

摘要： A wheeled vehicle is equipped with a feedforward steering control system which steers the vehicle through front or rear road wheels in accordance with a driver's steering input such as an angular displacement of a steering wheel, and a negative feedback system which senses a turning behavior of the vehicle such as a yaw rate or a lateral acceleration, and steers the vehicle through the front or rear wheels in such a negative direction as to reduce the turning behavior. The feedforward system may control the angular direction of the front or rear wheels in accordance with a linear combination of the steering input and the time derivative of the steering input, or may control the angular directions of both of the front and rear wheels in accordance with different transfer functions between the steering input and the front and rear wheel angles. The negative feedback system is combined with the feedforward system in various ways to provide desired characteristics of the turning behavior. The negative feedback quantity determined by the negative feedback system may be proportional to the sensed turning behavior, or may be determined in accordance with the difference between the sensed turning behavior, and the reference turning behavior calculated from the vehicle speed and steering input.

摘要翻译： 轮式车辆配备有前馈转向控制系统，其根据驾驶员的转向输入（例如方向盘的角位移）和负反馈系统，通过前车轮或后车轮转向车辆，以及负反馈系统，其感测车轮的转向行为 车辆，例如偏航率或横向加速度，并且以如此减小转弯行为的方向使车辆通过前轮或后轮。 前馈系统可以根据转向输入和转向输入的时间导数的线性组合来控制前轮或后轮的角度方向，或者可以根据转向输入的时间导数来控制前轮和后轮的角度方向 转向输入与前轮和后轮之间的转换功能不同。 负反馈系统与前馈系统以各种方式结合，以提供所需的转向特性。 由负反馈系统确定的负反馈量可以与感测到的转向行为成比例，或者可以根据感测到的转向行为与根据车速和转向输入计算的参考转弯行为之间的差来确定。

公开(公告)号：US4588039A

公开(公告)日：1986-05-13

申请号：US659964

申请日：1984-10-11

申请人： Takaaki Uno ,  Yasuji Shibahata ,  Yasumasa Tsubota

发明人： Takaaki Uno ,  Yasuji Shibahata ,  Yasumasa Tsubota

IPC分类号： B62D7/14 ,  B62D5/06 ,  B62D7/06

CPC分类号： B62D7/146

摘要： A vehicle is equipped with a rear wheel control device including hydraulic actuators for controllably turning rear wheels under influence of hydraulic fluid supplied thereto from a hydraulic pump. Turning the rear wheels is made in one of first and second directions which are opposite to each other, in response to steering effort applied to a steering wheel. The change-over operation of the rear wheel turning between the first and second directions takes place upon substantially stopping supply of the hydraulic fluid to the actuators, thereby preventing shock during the turning direction change-over operation.

摘要翻译： 车辆配备有后轮控制装置，其包括用于在从液压泵供给的液压流体的影响下可控地转动后轮的液压致动器。 响应于施加到方向盘的转向力，转动后轮在彼此相对的第一和第二方向之一中制成。 后轮在第一和第二方向之间的转换的转换操作在基本上停止向致动器供应液压流体时发生，从而防止在转向方向转换操作期间的冲击。

公开(公告)号：US08640816B2

公开(公告)日：2014-02-04

申请号：US12957589

申请日：2010-12-01

申请人： Yasuji Shibahata

发明人： Yasuji Shibahata

IPC分类号： B62D5/04 ,  B62D5/00

CPC分类号： B62D5/001

摘要： A vehicular steering apparatus includes: a road-wheel turning mechanism mechanically separated from, but electrically connected to a steering wheel; a first rotation shaft connected to the steering wheel; a second rotation shaft connected to the road-wheel turning mechanism; and a connection mechanism for interconnecting the first and second rotation shafts in such a manner that the first and second rotation shafts can rotate idle relative to each other within a range of a predetermined relative rotational angle.

摘要翻译： 一种车辆转向装置，包括：与方向盘机械地分离但电连接的车轮转向机构; 连接到方向盘的第一旋转轴; 连接到所述车轮转向机构的第二旋转轴; 以及用于使第一和第二旋转轴互相连接的连接机构，使得第一和第二旋转轴可以在预定的相对旋转角度的范围内相对于彼此旋转空转。