公开(公告)号：US20050161279A1

公开(公告)日：2005-07-28

申请号：US10515178

申请日：2003-05-26

Applicant: Hiroaki Kato ,  Minekazu Momiyama ,  Shoji Ogawa ,  Kenji Asano ,  Yuzou Imoto ,  Yoshiyuki Yasui ,  Eiichi Ono ,  Yuji Muragishi

Inventor： Hiroaki Kato ,  Minekazu Momiyama ,  Shoji Ogawa ,  Kenji Asano ,  Yuzou Imoto ,  Yoshiyuki Yasui ,  Eiichi Ono ,  Yuji Muragishi

IPC: B62D5/04 ,  B62D5/22 ,  B62D6/00 ,  B62D15/02 ,  B62D101/00 ,  B62D113/00 ,  B62D137/00

CPC classification number: B62D6/008 ,  B62D6/006 ,  B62D15/029

Abstract: In a steering apparatus, in accordance with a grip limit control process (30b′), it is determined whether or not a grip degree ε estimated by a grip degree estimation arithmetically operating process (30a) is less than a predetermined grip degree (ε′), and in the case that it is determined that an estimated grip degree (ε) is less than the predetermined grip degree (ε′), the process applies such a feeling that a steering operation by a steering wheel suddenly becomes light to a driver, by suddenly increasing an assist quantity by a motor (M), thereby notifying the driver of the matter that the grip degree of a steered wheel is close to a limit. Therefore, it is possible to transmit to the driver a probability that a side slip is generated by further turning the steering wheel 21 in the same direction as the current direction, thereby calling the driver's attention for steering. Accordingly, there is an effect that a stability of a vehicle behavior can be improved without applying any fear of insecurity to the driver.

Abstract translation: 在转向装置中，根据握持限制控制处理（30b'），判定通过握持度估计算术运算处理（30a）估计出的抓地力程度ε是否小于预定抓地力（ epsilon'），并且在确定估计抓地力（ε）小于预定抓地力（epsilon））的情况下，该处理应用这样的感觉，即方向盘的转向操作突然变亮 驾驶员通过马达（M）突然增加辅助量，从而通知驾驶员转向轮的夹紧度接近极限。 因此，通过使方向盘21与当前方向相同的方向进一步转动方向盘21，可以向驾驶员发送侧滑的概率，从而呼叫司机注意转向。 因此，存在可以提高车辆行为的稳定性的效果，而不会对驾驶员造成不安全感的担心。

公开(公告)号：US06792343B2

公开(公告)日：2004-09-14

申请号：US10445019

申请日：2003-05-27

Applicant: Yoshiyuki Yasui ,  Katsuhiro Asano ,  Yuji Muragishi ,  Minekazu Momiyama ,  Kenji Asano

Inventor： Yoshiyuki Yasui ,  Katsuhiro Asano ,  Yuji Muragishi ,  Minekazu Momiyama ,  Kenji Asano

IPC: G06F700

CPC classification number: B60T8/17636 ,  B60T2210/12

Abstract: An antiskid braking control system includes a wheel factor estimating means for estimating at least a wheel factor such as a side force of a vehicle front wheel and a front wheel slip angle based upon a vehicle state variable, a grip factor estimating means for estimating a grip factor of at least the vehicle front wheel based upon a change of a aligning torque depending upon the front wheel factor, and a control parameter adjusting means for adjusting a control parameter based upon the grip factor estimated.

公开(公告)号：US06729697B2

公开(公告)日：2004-05-04

申请号：US09824835

申请日：2001-04-04

Applicant: Yoshiyuki Yasui ,  Takashi Yonekawa ,  Akira Tanaka ,  Hideyuki Suzuki ,  Mamoru Sawada

Inventor： Yoshiyuki Yasui ,  Takashi Yonekawa ,  Akira Tanaka ,  Hideyuki Suzuki ,  Mamoru Sawada

IPC: B60T860

CPC classification number: B60T8/172 ,  B60T8/3275 ,  B60T2201/03

Abstract: A braking force control device, wherein wheel speed is detected and a slope of a braking force with respect to slip speed of the wheel is estimated on the basis of the detected wheel speed, a braking operation by which a brake pedal is depressed is detected and, on the basis of the detected braking operation conditions and estimated slope of the braking force, braking of the braking device to brake the wheels by a braking force generated in response to the braking operation by which the brake pedal is depressed is assisted.

Abstract translation: 一种制动力控制装置，其中，根据所检测到的车轮速度，基于检测到制动踏板被踩下的制动操作来估计检测到车轮速度并且相对于车轮的滑动速度的制动力的斜率， 根据检测到的制动操作条件和制动力的估计斜率，辅助制动装置制动以通过制动踏板产生的制动力来制动车轮。

公开(公告)号：US6120113A

公开(公告)日：2000-09-19

申请号：US840587

申请日：1997-04-22

Applicant: Norio Yamazaki ,  Yoshiyuki Yasui ,  Kenji Tozu ,  Masanobu Fukami ,  Takayuki Itoh ,  Seiichi Kojima

Inventor： Norio Yamazaki ,  Yoshiyuki Yasui ,  Kenji Tozu ,  Masanobu Fukami ,  Takayuki Itoh ,  Seiichi Kojima

IPC: B60T8/1755 ,  B60T8/24 ,  B60T8/26 ,  B60T8/42 ,  B60T8/48 ,  B60T8/40

CPC classification number: B60T8/268 ,  B60T8/1755 ,  B60T8/24 ,  B60T8/4275 ,  B60T8/4872 ,  B60T2270/306

Abstract: The present invention is directed to a hydraulic braking system for an automotive vehicle, wherein a first passage is provided for communicating a master cylinder with first and second wheel cylinders. First and second pressure control devices are disposed in the first passage to control the hydraulic pressure of the brake fluid in the first and second wheel cylinders, respectively. A second passage is provided for communicating the master cylinder with an inlet of an auxiliary pressure source, which introduces the brake fluid from the wheel cylinders, and discharges the pressurized brake fluid to the wheel cylinders through the pressure control devices. A valve device is disposed in the first passage and connected to the second passage to selectively place one of a first operating position for communicating the master cylinder with the pressure control devices and blocking the communication between the master cylinder and the inlet of the auxiliary pressure source, and a second operating position for communicating the master cylinder with the inlet of the auxiliary pressure source and blocking the communication between the master cylinder and the pressure control devices. At least an auxiliary passage is provided for communicating the master cylinder with at least one of the wheel cylinders. And, at least a switching valve is disposed in the auxiliary passage to open and close the auxiliary passage.

Abstract translation: 本发明涉及一种用于机动车辆的液压制动系统，其中提供第一通道以将主缸与第一和第二轮缸连通。 第一和第二压力控制装置设置在第一通道中以分别控制第一和第二轮缸中的制动流体的液压。 提供第二通道，用于使主缸与辅助压力源的入口连通，该辅助压力源引入来自轮缸的制动流体，并且通过压力控制装置将加压的制动流体排放到轮缸。 阀装置设置在第一通道中并连接到第二通道，以选择性地将用于使主缸连通的第一操作位置与压力控制装置中的一个并阻塞主缸和辅助压力源的入口之间的连通 以及用于使主缸与辅助压力源的入口连通并阻止主缸和压力控制装置之间的连通的第二操作位置。 至少提供辅助通道用于使主缸与至少一个轮缸连通。 并且，至少一个切换阀设置在辅助通道中以打开和关闭辅助通道。

公开(公告)号：US6070952A

公开(公告)日：2000-06-06

申请号：US853458

申请日：1997-05-09

Applicant: Kenji Tozu ,  Yoshiyuki Yasui ,  Masanobu Fukami ,  Takayuki Itoh ,  Norio Yamazaki

Inventor： Kenji Tozu ,  Yoshiyuki Yasui ,  Masanobu Fukami ,  Takayuki Itoh ,  Norio Yamazaki

IPC: B60T8/24 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/48 ,  B60T8/60

CPC classification number: B60T8/1755

Abstract: The present invention is directed to a braking force control system for an automotive vehicle having a hydraulic braking pressure control apparatus which is provided for applying the braking force to each of front and rear wheels of the vehicle at least in response to depression of a brake pedal. A desired yaw rate is set in accordance with a motion of the vehicle, and an actual yaw rate of the vehicle is measured. A varying rate of the desired yaw rate is calculated, and a varying rate of the actual yaw rate is calculated. Then, a deviation between the varying rate of the desired yaw rate and the varying rate of the actual yaw rate is calculated. And, a limitation unit is provided for actuating the hydraulic braking pressure control apparatus to limit the varying rate of the actual yaw rate by applying the braking force to at least one of the wheels, when the deviation exceeds a predetermined value. The limitation unit may be so constituted as to apply the braking force to a front wheel of the wheels which is located on the outside of a curve in the vehicle's path.

Abstract translation: 本发明涉及一种用于机动车辆的制动力控制系统，其具有液压制动压力控制装置，该液压制动压力控制装置至少响应于制动踏板的下压而向车辆的前轮和后轮施加制动力 。 根据车辆的运动来设定期望的偏航率，并且测量车辆的实际横摆率。 计算所需横摆率的变化率，并计算实际横摆率的变化率。 然后，计算所需偏航率的变化率与实际横摆率的变化率之间的偏差。 并且，当偏差超过预定值时，提供限制单元用于致动液压制动压力控制装置，以通过对至少一个车轮施加制动力来限制实际横摆率的变化率。 限制单元可以被构造成将制动力施加到位于车辆路径中的曲线外侧的车轮的前轮。

公开(公告)号：US5857754A

公开(公告)日：1999-01-12

申请号：US791884

申请日：1997-01-31

Applicant: Masanobu Fukami ,  Kenji Tozu ,  Yoshiyuki Yasui ,  Takayuki Itoh ,  Norio Yamazaki

Inventor： Masanobu Fukami ,  Kenji Tozu ,  Yoshiyuki Yasui ,  Takayuki Itoh ,  Norio Yamazaki

IPC: B60T8/24 ,  B60T8/1755 ,  B60T8/1764 ,  B60T8/34

CPC classification number: B60T8/1764 ,  B60T8/1755

Abstract: The present invention is directed to a vehicle motion control system for maintaining vehicle stability by controlling the braking force applied to at least one of the driven wheels and non-driven wheels of a vehicle. A vehicle motion control is performed by applying the braking force to at least one wheel, on the basis of a condition of the vehicle in motion and irrespective of depression of a brake pedal. The braking force is applied to at least one wheel so as to cause an increase in turning radius, when an excessive oversteer occurs during vehicle motion. Whereas, the braking force is applied to at least one wheel so as to cause a decrease in turning radius, when an excessive understeer occurs during vehicle motion. In the case where an excessive braking to at least one of the driven wheels is detected, when an engine brake is exerted on the vehicle, a correction control is performed to increase the braking force applied to at least one of the non-driven wheels. For example, when an excessive slip rate of at least one of the driven wheels is detected, a desired slip rate of at least one of the non-driven wheels is corrected.

Abstract translation: 本发明涉及一种用于通过控制施加到车辆的从动轮和非从动轮中的至少一个的制动力来维持车辆稳定性的车辆运动控制系统。 基于车辆的运动状态并且与制动踏板的下压无关地对至少一个车轮施加制动力来执行车辆运动控制。 当在车辆运动期间发生过度转向时，制动力被施加到至少一个车轮，以便使转弯半径增加。 而在车辆运动时发生过大的转向不足时，制动力被施加到至少一个车轮，从而导致转弯半径的减小。 在检测到至少一个从动轮的过度制动的情况下，当发动机制动被施加在车辆上时，执行校正控制以增加施加到至少一个非从动轮的制动力。 例如，当检测到至少一个从动轮的过度滑移率时，校正至少一个非从动轮的期望的滑移率。

公开(公告)号：US5762406A

公开(公告)日：1998-06-09

申请号：US748660

申请日：1996-11-14

Applicant: Yoshiyuki Yasui ,  Kenji Tozu ,  Masanobu Fukami ,  Takayuki Itoh ,  Norio Yamazaki

Inventor： Yoshiyuki Yasui ,  Kenji Tozu ,  Masanobu Fukami ,  Takayuki Itoh ,  Norio Yamazaki

IPC: B60T8/1755 ,  B60T8/24 ,  B60T8/44 ,  B60T8/48 ,  B60T8/60 ,  B60T8/58

CPC classification number: B60T8/246 ,  B60T8/1755 ,  B60T8/445 ,  B60T8/4836 ,  B60T2230/02

Abstract: The present invention is directed to a vehicle motion control system for maintaining vehicle stability by controlling the braking force applied to at least one of the front and rear wheels of a vehicle. Oversteer restraining control and/or understeer restraining control are performed by applying the braking force to at least one wheel, on the basis of a condition of the vehicle in motion and irrespective of depression of a brake pedal. In the oversteer restraining control, the braking force is applied to at least one wheel so as to cause an increase in turning radius, when an excessive oversteer occurs during vehicle motion. Whereas, in the understeer restraining control, the braking force is applied to at least one wheel so as to cause a decrease in turning radius, when an excessive understeer occurs during vehicle motion. When the excessive oversteer and excessive understeer occur simultaneously or sequentially during vehicle motion, priority is given to the oversteer restraining control over the understeer restraining control with respect to at least one of the front wheels, while priority is given to the understeer restraining control over the oversteer restraining control with respect to at least one of the rear wheels.

Abstract translation: 本发明涉及一种用于通过控制施加到车辆的前轮和后轮中的至少一个的制动力来维持车辆稳定性的车辆运动控制系统。 基于车辆的运动状态并且与制动踏板的下压无关地对至少一个车轮施加制动力来执行过度转向限制控制和/或转向不足控制。 在过度转向限制控制中，当在车辆运动期间发生过度转向过大时，制动力被施加到至少一个车轮，以便使转弯半径增大。 而在转向限制控制中，当在车辆运动期间发生过大的转向不足时，制动力被施加到至少一个车轮，从而导致转弯半径的减小。 当在车辆运动期间过度转向和过度不足转向同时发生或依次发生时，优先考虑相对于前轮中的至少一个的对转向器限制控制的过度转向限制控制，同时优先考虑不足转向限制控制 相对于至少一个后轮的过度转向限制控制。

公开(公告)号：US5159553A

公开(公告)日：1992-10-27

申请号：US475899

申请日：1990-02-06

Applicant: Dean C. Karnopp ,  Yoshiyuki Yasui

Inventor： Dean C. Karnopp ,  Yoshiyuki Yasui

IPC: B62D5/04 ,  B62D5/06 ,  B62D5/22 ,  B62D5/30 ,  B62D6/00 ,  B62D6/04 ,  B62D7/15 ,  B62D9/00 ,  B62D101/00 ,  B62D111/00 ,  B62D113/00 ,  B62D137/00

CPC classification number: B62D5/30 ,  B62D5/22 ,  B62D6/04 ,  B62D7/159 ,  B62D9/00

Abstract: The steering stability of a moving vehicle is maintained by measuring an actual yaw rate of the vehicle and determining a desired yaw rate of the vehicle and producing an output signal in response to a comparison of the actual and desired yaw rates. The steering angle of steerable wheels of the vehicle is controlled in response to the output signal in a manner tending to substantially conform the actual yaw rate to the desired yaw rate, thereby maintaining vehicle stability. The steerable wheels are steered by a steering wheel, and are independently steered by a motor in response to the output signal. That motor may comprise a fluid motor or an electric motor.

Abstract translation: 通过测量车辆的实际横摆角速度和确定车辆的期望偏航角速度并响应于实际和期望的偏航率的比较来产生输出信号来维持移动车辆的转向稳定性。 响应于输出信号控制车辆的可转向车轮的转向角度，其倾向于基本上使实际的横摆率与所期望的横摆角速度一致，从而保持车辆的稳定性。 可转向的车轮由方向盘转向，并响应于输出信号由电动机独立转向。 该马达可以包括流体马达或电马达。

公开(公告)号：US5141069A

公开(公告)日：1992-08-25

申请号：US524073

申请日：1990-05-16

Applicant: Yoshiyuki Yasui

Inventor： Yoshiyuki Yasui

IPC: B60G17/015 ,  B62D5/22 ,  B62D6/00 ,  B62D6/04 ,  B62D7/15 ,  B62D9/00 ,  B62D17/00 ,  B62D101/00 ,  B62D113/00 ,  B62D123/00 ,  B62D137/00

CPC classification number: B62D5/22 ,  B62D17/00 ,  B62D6/04 ,  B62D7/159 ,  B62D9/00 ,  B60G2200/10 ,  B60G2200/462 ,  B60G2202/40 ,  B60G2204/62

Abstract: The steering stability of a moving vehicle is maintained by measuring an actual yaw rate of the vehicle and determining a desired yaw rate of the vehicle and producing an output signal in response to a comparison of the actual and desired yaw rates. The steering angle of steerable wheels of the vehicle is controlled in response to the output signal in a manner tending to substantially conform the actual yaw rate to the desired yaw rate, thereby maintaining vehicle stability. The steerable wheels are steered by a steering wheel, and are independently steered by a motor in response to the output signal. That motor comprises a fluid motor. A toe-in control mechanism is also disclosed and functions to eliminate toe-in whenever the vehicle is steered through a turn.

Abstract translation: 通过测量车辆的实际横摆角速度和确定车辆的期望偏航角速度并响应于实际和期望的偏航率的比较来产生输出信号来维持移动车辆的转向稳定性。 响应于输出信号控制车辆的可转向车轮的转向角度，其倾向于基本上使实际的横摆率与所期望的横摆角速度一致，从而保持车辆的稳定性。 可转向的车轮由方向盘转向，并响应于输出信号由电动机独立转向。 该马达包括流体马达。 还公开了一种脚趾控制机构，并且用于在车辆被转向时消除脚趾的功能。