公开(公告)号：US20050071061A1

公开(公告)日：2005-03-31

申请号：US10932114

申请日：2004-09-02

Applicant: Hiroaki Kato ,  Minekazu Momiyama ,  Takayuki Ohta ,  Yoshiyuki Yasui ,  Yuzo Imoto ,  Hiroaki Aizawa ,  Eiichi Ono ,  Yuji Muragishi

Inventor： Hiroaki Kato ,  Minekazu Momiyama ,  Takayuki Ohta ,  Yoshiyuki Yasui ,  Yuzo Imoto ,  Hiroaki Aizawa ,  Eiichi Ono ,  Yuji Muragishi

IPC: B60T8/172 ,  B62D5/00 ,  B62D6/00 ,  B62D101/00 ,  B62D103/00 ,  B62D111/00 ,  B62D113/00 ,  B62D119/00 ,  B62D137/00 ,  B62D5/04

CPC classification number: B62D5/008 ,  B60T8/172 ,  B60T2210/12 ,  B60T2220/03 ,  B62D6/003 ,  B62D6/006

Abstract: A first ECU 30 detects a steering torque applied to a steering system, estimates a self-aligning torque generated in a front wheel on the basis of the steering torque, and estimates a side force for the front wheel on the basis of lateral acceleration and a yaw rate. The first ECU 30 estimates a grip factor ε for the front wheel on the basis of a change of the self-aligning torque to the side force. The first ECU 30 judges whether the grip factor is below a second OS (oversteer) start threshold value. A second ECU 40 controls the transfer ratio according to the vehicle state when the grip factor is less than the second OS start threshold value.

公开(公告)号：US20050023789A1

公开(公告)日：2005-02-03

申请号：US10874536

申请日：2004-06-24

Applicant: Katsumi Suzuki ,  Akiya Taneda ,  Yoshiyuki Yasui

Inventor： Katsumi Suzuki ,  Akiya Taneda ,  Yoshiyuki Yasui

IPC: B60G21/055 ,  B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B62D7/22

CPC classification number: B60G17/0185 ,  B60G17/0162 ,  B60G21/0555

Abstract: A stabilizer control device includes a pair of stabilizer bar positioned between right, left wheels of a vehicle, an electric motor, an actuator positioned between said pair of the stabilizer bar, the actuator comprising the electric motor, and a control means for controlling the electric motor in accordance with a turning state of the vehicle. At least one motor relay positioned in parallel with corresponding number of coil of the electric motor. The motor relay is short circuited when electric power is not supplied to the electric motor.

Abstract translation: 一种稳定器控制装置，包括位于车辆左右车轮之间的一对稳定杆，电动马达，位于所述一对稳定杆之间的致动器，包括电动马达的致动器和用于控制电动机的控制装置 电机根据车辆的转动状态。 至少一个电动机继电器与电动机的相应数量的线圈并联设置。 电机未向电动机供电时，电机继电器短路。

公开(公告)号：US06704636B2

公开(公告)日：2004-03-09

申请号：US09824108

申请日：2001-04-03

Applicant: Yasushi Amano ,  Masanori Miyashita ,  Yoshitoshi Watanabe ,  Akira Tanaka ,  Yoshiyuki Yasui ,  Mamoru Sawada

Inventor： Yasushi Amano ,  Masanori Miyashita ,  Yoshitoshi Watanabe ,  Akira Tanaka ,  Yoshiyuki Yasui ,  Mamoru Sawada

IPC: G06F1700

CPC classification number: B60C11/246 ,  B60T8/172 ,  B60T13/662 ,  B60T2210/12 ,  G01K7/42

Abstract: A tire parameter estimation device that is economical and can accurately estimate tire parameters while taking into consideration both states of a vehicle and states of a road environment. A &mgr; gradient detecting circuit detects a &mgr; gradient on the basis of a wheel speed detected by a wheel speed detecting circuit. A gradient value comparing circuit determines a &mgr; gradient section value &mgr;r, which is a mean value of the &mgr; gradients from the &mgr; gradient detecting circuit, and calculates a rate (=&mgr;r/&mgr;I) of the &mgr; gradient mean value &mgr;r with respect to a &mgr; gradient initial value &mgr;. A tire temperature estimating circuit stores a table representing the relation between the rate and a tire temperature, and estimates a tire temperature corresponding to the rate calculated by the gradient value comparing circuit as the present tire temperature.

Abstract translation: 一种轮胎参数估计装置，其考虑到车辆的状态和道路环境的状态，其经济性并且可以准确地估计轮胎参数。 μ梯度检测电路基于由车轮速度检测电路检测到的车轮速度来检测μ梯度。 梯度值比较电路确定作为μ梯度检测电路的mu梯度的平均值的μ梯度区间值mur，并计算μ梯度平均值mur相对于a的梯度区间值（= mur / muI） mu梯度初始值mu。 轮胎温度估计电路存储表示速率与轮胎温度之间的关系的表，并且将与由梯度值比较电路计算出的速率相对应的轮胎温度估计为当前轮胎温度。

公开(公告)号：US06377885B2

公开(公告)日：2002-04-23

申请号：US09824131

申请日：2001-04-03

Applicant: Yoshiyuki Yasui ,  Kenji Asano ,  Shoji Ito ,  Akira Tanaka ,  Hiroaki Yoshida ,  Mamoru Sawada ,  Yuji Muragishi ,  Michio Ishiguro ,  Tsugiharu Matsunaga ,  Eiichi Ono

Inventor： Yoshiyuki Yasui ,  Kenji Asano ,  Shoji Ito ,  Akira Tanaka ,  Hiroaki Yoshida ,  Mamoru Sawada ,  Yuji Muragishi ,  Michio Ishiguro ,  Tsugiharu Matsunaga ,  Eiichi Ono

IPC: B60T800

CPC classification number: B60T8/17636 ,  B60T8/172 ,  B60T2210/12

Abstract: A braking force control device is provided in which wheel speeds of respective wheels of a vehicle are detected. On the basis of detected wheel speeds, a road surface &mgr; slope, which is a slope of a coefficient of friction &mgr; between a wheel and a road surface, is estimated for each wheel. On the basis of the road surface &mgr; slope estimated for each wheel, a braking force of each wheel is controlled such that the braking force of each wheel is adjusted.

公开(公告)号：USRE37522E1

公开(公告)日：2002-01-22

申请号：US09385001

申请日：1999-08-27

Applicant: Dean C. Karnopp ,  Yoshiyuki Yasui

Inventor： Dean C. Karnopp ,  Yoshiyuki Yasui

IPC: B60T860

CPC classification number: G05D1/0891 ,  B60T8/1755

Abstract: The present invention relates to an apparatus and method for controlling vehicle motion. More specifically, the invention relates to an apparatus for improving vehicle stability by controlling the brake torque of a vehicle during, for example, cornering manuevers. In accordance with the present invention, vehicle stability is improved by independently controlling brake torque in response to sensed yaw rate.

Abstract translation: 本发明涉及一种用于控制车辆运动的装置和方法。 更具体地，本发明涉及一种通过在例如转弯机构中控制车辆的制动转矩来提高车辆稳定性的装置。 根据本发明，通过响应于感测到的偏航率独立地控制制动转矩来提高车辆的稳定性。

公开(公告)号：US5390118A

公开(公告)日：1995-02-14

申请号：US156944

申请日：1993-11-24

Applicant: Donald Margolis ,  Yoshiyuki Yasui

Inventor： Donald Margolis ,  Yoshiyuki Yasui

IPC: B62D1/28 ,  G01S17/93 ,  G05D1/02 ,  G06F15/50

CPC classification number: G01S17/936 ,  B62D1/28 ,  G05D1/0236 ,  G05D1/0255 ,  G05D1/0272 ,  G05D2201/0213

Abstract: An improved automatic lateral guidance control system for guiding moving vehicles is provided which includes a sensing subsystem for viewing an area in front of a vehicle, a plurality of energy radiating or energy reflective devices disposed adjacent a predetermined length of road, an apparatus for translating the radiated or reflected information from the viewed area into coordinate data representing an approximation of the predetermined path along the road, and a vehicle controller for determining the vehicle's heading with respect to the approximated path and providing an output control signal to correct the vehicle's heading with respect to the approximated path. The system uses past and present position data to calculate a predetermined path for the vehicle. Gain factors and comfort factors are determined to maximize comfort to passengers of the system and to optimize performance of the system.

Abstract translation: 提供了一种用于引导移动车辆的改进的自动横向引导控制系统，其包括用于观察车辆前方的区域的感测子系统，邻近预定长度的道路设置的多个能量辐射或能量反射装置，用于将 辐射或反射的信息从所观看的区域转换为表示沿着道路的预定路径的近似的坐标数据，以及车辆控制器，用于相对于近似路径确定车辆的航向，并提供输出控制信号以相对于车辆的航向进行校正 到近似路径。 系统使用过去和现在的位置数据来计算车辆的预定路径。 确定增益因素和舒适因素以最大程度地提高系统乘客的舒适度并优化系统的性能。

公开(公告)号：US5357432A

公开(公告)日：1994-10-18

申请号：US156943

申请日：1993-11-24

Applicant: Donald L. Margolis ,  Yoshiyuki Yasui

Inventor： Donald L. Margolis ,  Yoshiyuki Yasui

IPC: G01C21/00 ,  G05D1/02 ,  G06F15/50

CPC classification number: G05D1/0265 ,  G05D1/0236 ,  G05D1/0272 ,  G05D1/0278 ,  G05D1/028 ,  G05D1/0221 ,  G05D1/0255 ,  G05D2201/021 ,  G05D2201/0213

Abstract: An improved automatic lateral guidance control system for guiding moving vehicles is provided which includes a sensing subsystem for viewing an area in front of a vehicle, a plurality of energy radiating or energy reflective devices disposed adjacent a predetermined length of road, an apparatus for translating the radiated or reflected information from the viewed area into coordinate data representing an approximation of the predetermined path along the road, and a vehicle controller for determining the vehicle's heading with respect to the approximated path and providing an output control signal to correct the vehicle's heading with respect to the approximated path.

Abstract translation: 提供了一种用于引导移动车辆的改进的自动横向引导控制系统，其包括用于观察车辆前方的区域的感测子系统，邻近预定长度的道路设置的多个能量辐射或能量反射装置，用于将 辐射或反射的信息从所观看的区域转换为表示沿着道路的预定路径的近似的坐标数据，以及车辆控制器，用于相对于近似路径确定车辆的航向，并提供输出控制信号以相对于车辆的航向进行校正 到近似路径。

公开(公告)号：US5289894A

公开(公告)日：1994-03-01

申请号：US861103

申请日：1992-03-31

Applicant: Yoshiyuki: Yasui

Inventor： Yoshiyuki: Yasui

IPC: B62D5/07 ,  B62D5/04 ,  B62D5/065 ,  B62D5/09 ,  B62D6/00 ,  B62D6/02 ,  B62D7/15 ,  B62D101/00 ,  B62D113/00 ,  B62D137/00 ,  B62D5/08

CPC classification number: B62D5/065 ,  B62D5/09 ,  B62D7/159

Abstract: A power steering system incorporates a stability augmentation control program so as to provide hydrostatic power steering to the front and/or rear wheels of a vehicle. The hydrostatic steering system utilizes a control piston responsive to movement of a rack element of the rack and pinion steering connection of the vehicle steering system. A steering wheel angle sensor is connected to the steering shaft for providing an output angle signal to the steering controller and an electric motor of the system is responsive to a command signal generated by the steering controller. The steering of the wheels of the vehicle is then controlled in response to the steering wheel angle, vehicle speed and yaw rate of the vehicle. The controller receives inputs from each of the sensors so as to provide a control signal permitting stable steering control of the front wheels of the vehicle. The system is also applicable for providing steering for rear wheels of the vehicle in which a position sensor provides a control signal to the controller for controlling hydrostatic power to a control chamber for a steering rod of the rear wheels of the vehicle.

Abstract translation: 动力转向系统包括稳定性增强控制程序，以便向车辆的前轮和/或后轮提供静液压动力转向。 静液压转向系统利用响应于车辆转向系统的齿条和小齿轮转向连接的齿条元件的运动的控制活塞。 方向盘角度传感器连接到转向轴，以向转向控制器提供输出角度信号，并且系统的电动机响应于由转向控制器产生的指令信号。 然后响应于车辆的方向盘角度，车辆速度和偏航率来控制车辆的车轮的转向。 控制器从每个传感器接收输入，以提供允许车辆前轮的稳定转向控制的控制信号。 该系统还适用于为车辆的后轮提供转向，其中位置传感器向控制器提供控制信号，以控制对用于车辆后轮的转向杆的控制室的静液压力。

公开(公告)号：US5279380A

公开(公告)日：1994-01-18

申请号：US858498

申请日：1992-03-27

Applicant: Andrew A. Frank ,  Yoshiyuki Yasui

Inventor： Andrew A. Frank ,  Yoshiyuki Yasui

IPC: B62D5/07 ,  B62D5/04 ,  B62D5/06 ,  B62D5/065 ,  B62D6/02 ,  B62D6/08 ,  B62D6/00

CPC classification number: B62D6/08 ,  B62D5/065

Abstract: A hydrostatic power steering system including an electric motor is provided for a automotive vehicle. The hydrostatic power steering system utilizes a power steering piston responsive to movement of the rack element of the rack and pinion steering connection. The power steering piston is provided in a piston chamber divided by a valve land into first and second portions, each of which are connected to first and second hydraulic lines. A torque sensor is connected to the steering shaft for providing an output torque signal to a power steering controller. The electric motor of the system is responsive to a command signal generated by the power steering controller. An electrically operated valve is connected to the hydraulic lines and is adapted to receive a signal from the power steering controller for controlling flow of hydraulic fluid to the power steering chamber. The electrically operated valve arrangement is rendered inoperative within a predetermined zone defined by the command signal and the output torque signal.

Abstract translation: 为汽车提供了包括电动机的静液压动力转向系统。 液压动力转向系统利用响应于齿条和小齿轮转向连接的齿条元件运动的动力转向活塞。 动力转向活塞设置在由阀岛分隔的活塞室中，第一和第二部分分别连接到第一和第二液压管线。 扭矩传感器连接到转向轴，用于向动力转向控制器提供输出转矩信号。 该系统的电动机响应于由动力转向控制器产生的指令信号。 电动阀连接到液压管路，并且适于接收来自动力转向控制器的信号，用于控制液压流体到动力转向室的流动。 电动阀装置在由指令信号和输出转矩信号限定的预定区域内不起作用。

公开(公告)号：US4998593A

公开(公告)日：1991-03-12

申请号：US331343

申请日：1989-03-31

Applicant: Dean C. Karnopp ,  Yoshiyuki Yasui

Inventor： Dean C. Karnopp ,  Yoshiyuki Yasui

IPC: B60T8/1755 ,  B60T8/1761 ,  B60T8/24 ,  B60T8/58 ,  B62D6/00 ,  B62D7/15 ,  B62D101/00 ,  B62D105/00 ,  B62D113/00

CPC classification number: B62D6/003 ,  B60T8/1755 ,  B62D7/159 ,  B60G2400/0523 ,  B60G2400/1042 ,  B60G2800/702 ,  B60T2230/03 ,  B60T2260/024

Abstract: Steering and braking are coordinated and controlled according to a sensed yaw rate error or lateral acceleration error to increase vehicle stability without increasing braking distance. A desired yaw rate or lateral acceleration rate is computed from the vehicle velocity and the steering wheel angle. If the yaw rate or the lateral acceleration is excessive, indicating instability, and the brakes are being operated, then both steering and braking are controlled to reduce the yaw rate or lateral acceleration rate. In all other cases, steering control alone is performed. The yaw rate or lateral acceleration rate is reduced under steering control by adjusting wheel positions in a direction opposite the direction of yaw or lateral acceleration. The control system of the present invention is applicable to both two-wheel and four-wheel steering and braking. The yaw rate or lateral acceleration is further reduced under braking control by decreasing brake pressure on a side of the vehicle corresponding to the direction of yaw or lateral acceleration and increasing brake pressure on the opposite side of the vehicle. In the case of anti-lock brakes, pressure is not increased beyond a slip rate threshold. Rather than controlling brake pressure, the slip rate threshold itself may be controlled in like manner to reduce the yaw rate or lateral acceleration.

Abstract translation: 根据感测到的横摆角速度误差或横向加速度误差来协调和控制转向和制动，以增加车辆稳定性而不增加制动距离。 从车辆速度和方向盘角度计算出期望的偏航率或横向加速度。 如果偏航率或横向加速度过大，指示不稳定性，并且制动器正在操作，则控制转向和制动以减小偏航率或横向加速度。 在所有其他情况下，仅执行转向控制。 通过在与偏航方向或横向加速度方向相反的方向上调整车轮位置，在转向控制下减小偏航率或横向加速度。 本发明的控制系统适用于两轮和四轮转向和制动。 在制动控制下，横摆速度或横向加速度进一步减小，通过减少对应于偏航方向或侧向加速度的车辆侧的制动压力并增加车辆相对侧上的制动压力。 在防抱死制动器的情况下，压力不会超过滑动率阈值。 而不是控制制动压力，可以以相似的方式控制滑移率阈值本身以减小横摆率或横向加速度。