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公开(公告)号:US5829847A
公开(公告)日:1998-11-03
申请号:US803938
申请日:1997-02-20
Applicant: Kenji Tozu , Yoshiyuki Yasui , Masanobu Fukami , Takayuki Itoh , Norio Yamazaki
Inventor: Kenji Tozu , Yoshiyuki Yasui , Masanobu Fukami , Takayuki Itoh , Norio Yamazaki
IPC: B60T8/172 , B60T8/1755 , B60T8/66
CPC classification number: B60T8/172 , B60T8/1755 , B60T2220/04
Abstract: The present invention is directed to a vehicle motion control system for maintaining vehicle stability by controlling the braking force applied to each wheel of a vehicle. The braking force applied to each wheel is controlled on the basis of outputs of the wheel speed sensors and the vehicle speed estimation unit. A limit value is calculated to a difference between a first estimated vehicle speed calculated for a second wheel located on the right side of the vehicle and a left estimated vehicle speed calculated for a left wheel located on the left side of the vehicle. The calculation of one of the first and second estimated vehicle speeds is limited in response to the limit value, so as to keep the estimated vehicle speed calculated for one of the right and left wheels rotating at a relatively low speed to be greater than a value subtracting the limit value from the second estimated vehicle speed provided for the other one of the right and left wheels rotating at a relatively high speed. For example, the limit value is calculated on the basis of a varying value resulted from at least a change in a coefficient of friction for each wheel of the vehicle, and varied in accordance with one of a plurality of control modes.
Abstract translation: 本发明涉及一种用于通过控制施加到车辆的每个车轮的制动力来保持车辆稳定性的车辆运动控制系统。 基于车轮速度传感器和车速估计单元的输出来控制施加到每个车轮的制动力。 计算出对于位于车辆右侧的第二车轮计算出的第一估计车速与对于位于车辆左侧的左车轮计算出的左估计车速之间的差的限制值。 第一和第二估计车速中的一个的计算响应于限制值被限制,以便为左右一个车轮以相对低的速度转动的估计车速保持为大于值 从为相对高速旋转的左右轮中的另一方提供的第二估计车速减去极限值。 例如,基于由车辆的每个车轮的至少摩擦系数的变化导致的变化值来计算极限值,并且根据多个控制模式中的一个进行变化。
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公开(公告)号:US5373911A
公开(公告)日:1994-12-20
申请号:US123985
申请日:1993-09-21
Applicant: Yoshiyuki Yasui
Inventor: Yoshiyuki Yasui
IPC: B60W30/00 , B62D1/28 , B62D5/04 , B62D5/06 , B62D5/09 , B62D6/00 , B62D101/00 , B62D113/00 , B62D119/00 , B62D137/00 , G01S13/93 , G05D1/00
CPC classification number: G05D1/0061 , B62D1/28 , B62D1/286 , B62D5/0463 , B62D5/0481 , B62D5/09 , B62D6/003 , G01S2013/9339 , G01S2013/9342
Abstract: In accordance with the present invention, an automatic lateral guidance control system for motor vehicles is provided which includes a steering servo actuator which steers the vehicle. The steering servo actuator also allows for manual control by the driver. A detector detects when the automatic control is malfunctioning or is not present, and restores manual control to the driver. The system also includes a provision for stability augmentation to compensate for oversteering or understeering.
Abstract translation: 根据本发明,提供了一种用于机动车辆的自动侧向引导控制系统,其包括转向车辆的转向伺服致动器。 转向伺服执行器还允许驾驶员进行手动控制。 检测器检测何时自动控制故障或不存在,并恢复对驾驶员的手动控制。 该系统还包括一个用于稳定性增强的补偿以补偿过度转向或转向不足。
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公开(公告)号:US5156229A
公开(公告)日:1992-10-20
申请号:US475905
申请日:1990-02-06
Applicant: Yoshiyuki Yasui , Andrew A. Frank
Inventor: Yoshiyuki Yasui , Andrew A. Frank
IPC: B62D6/00 , B62D5/22 , B62D6/04 , B62D7/15 , B62D9/00 , B62D101/00 , B62D113/00 , B62D137/00
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.
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公开(公告)号:US09663089B2
公开(公告)日:2017-05-30
申请号:US14763413
申请日:2014-01-27
Applicant: Yoshiyuki Yasui , Shinichiro Yukoku , Hiroyuki Kodama , Satoshi Hirata , Naoki Yabusaki
Inventor: Yoshiyuki Yasui , Shinichiro Yukoku , Hiroyuki Kodama , Satoshi Hirata , Naoki Yabusaki
IPC: F16D65/00 , B60T13/74 , F16D55/227 , F16D65/18 , F16D55/2265 , F16D66/00 , F16D121/24 , F16D125/40 , F16D125/48
CPC classification number: B60T13/746 , B60T13/741 , F16D55/22655 , F16D55/227 , F16D65/0056 , F16D65/0062 , F16D65/0068 , F16D65/0087 , F16D65/18 , F16D2066/005 , F16D2121/24 , F16D2125/40 , F16D2125/48
Abstract: A mount member is fixed to a support member by first and second fastening members, and a caliper is mounted to the mount member by first and second guide members. A motor axis of an electric motor and an axis of a shaft member configured to press a pressing member are different from each other. The electric motor is fixed to the caliper. When viewed from an axial direction of the first guide member, the motor axis is positioned inside a fastening quadrangle having four corners corresponding to positions of respective axes of, and is perpendicular to the axis, and the motor axis is orthogonal to a plane of the fastening quadrangle. As a result, there may be provided a vehicle electric braking device in which an axial direction dimension may be reduced to suppress an amplitude caused by vibration, and components sensitive to vibration influence are appropriately arranged.
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公开(公告)号:US20160031427A1
公开(公告)日:2016-02-04
申请号:US14776242
申请日:2014-03-17
Applicant: Yoshiyuki YASUI , Hiroyuki KODAMA , Yusuke OSHIO
Inventor: Yoshiyuki YASUI , Hiroyuki KODAMA , Yusuke OSHIO
CPC classification number: B60T17/22 , B60T8/171 , B60T13/741
Abstract: A vehicle electric braking device wherein: a first degree of contribution associated with the actual pressing force value and a second degree of contribution associated with an estimated pressing force value, are determined based on operation amount of a braking operation member; the second degree of contribution is determined to be larger than the first degree when the operation amount is small; the first degree of contribution is determined to be larger than the second when the operation amount is large; a combined pressing force is calculated based on a value obtained by accounting for the first degree of contribution in the actual pressing force value and a value obtained by accounting for the second degree of contribution in the estimated pressing force value; and an electric motor target power supply amount is calculated based on the combined pressing force and a target pressing force calculated from the operation amount.
Abstract translation: 一种车辆用电动制动装置,其特征在于,基于制动操作部件的操作量来确定与所述实际按压力值相关联的第一贡献度和与推定按压力值相关联的第二贡献度; 确定第二贡献度大于操作量小的第一度; 当操作量大时,第一贡献度被确定为大于第二贡献度; 基于通过计算实际按压力值中的第一贡献度获得的值和通过计算推定按压力值中的第二贡献度而获得的值来计算组合按压力; 并且基于从操作量计算出的组合按压力和目标按压力来计算电动机目标供电量。
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公开(公告)号:US20150151727A1
公开(公告)日:2015-06-04
申请号:US14368868
申请日:2012-12-25
Applicant: Yoshiyuki Yasui , Hiroyuki Kodama , Naotoshi Satake
Inventor: Yoshiyuki Yasui , Hiroyuki Kodama , Naotoshi Satake
CPC classification number: B60T8/172 , B60T7/042 , B60T8/171 , B60T8/58 , B60T13/662 , B60T13/741 , B60T17/22 , F16D65/18 , F16D2066/005 , F16D2125/40 , F16D2125/48
Abstract: Based on a difference between target and actual values of a friction member force pressing a brake disc, feedback control over the pressing force is executed. As the actual value, a “limit pressing force (Fbs) obtained by placing a limitation on a temporal change amount of the Fba based on a limit value (Lmt)” is used. The limit value (Lmt) is set based on an electric motor speed (dMkt, dMka), a wheel speed (Vwa), and a temporal change amount (ΔTmp) of the friction member temperature. The Lmt is set to increase as the dMkt (dMka) increases and the temporal change amount (ΔTmp) of the temperature increases, and to also increase as the wheel speed (Vwa) decreases. Thus, even when a rotating member (brake disc) is deformed, braking torque control can be appropriately executed without accelerating a fluctuation of a braking torque on the wheel.
Abstract translation: 基于按压制动盘的摩擦构件力的目标值和实际值之间的差异,执行对按压力的反馈控制。 作为实际值,使用通过基于限制值(Lmt)对Fba的时间变化量进行限制而获得的“限制按压力(Fbs)”。 基于电动机速度(dMkt,dMka),车轮速度(Vwa)和摩擦构件温度的时间变化量(&Dgr; Tmp)来设定极限值(Lmt)。 Lmt设置为随着dMkt(dMka)增加而增加,并且温度的时间变化量(&Dgr; Tmp)增加,并且随着车轮速度(Vwa)的降低也增加。 因此,即使旋转构件(制动盘)变形,也可以适当地执行制动转矩控制,而不会加速车轮上的制动转矩的波动。
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公开(公告)号:US08997919B2
公开(公告)日:2015-04-07
申请号:US12718545
申请日:2010-03-05
Applicant: Yoshiyuki Yasui , Wataru Tanaka , Yuji Muragishi , Eiichi Ono , Katsuhiro Asano , Minekazu Momiyama , Hiroaki Kato , Kenji Asano
Inventor: Yoshiyuki Yasui , Wataru Tanaka , Yuji Muragishi , Eiichi Ono , Katsuhiro Asano , Minekazu Momiyama , Hiroaki Kato , Kenji Asano
IPC: B62D5/04 , B60T8/1755 , B60T8/1764 , B60W10/184 , B60W10/20 , B62D6/00
CPC classification number: B62D5/0472 , B60T8/1755 , B60T8/1764 , B60T2220/03 , B60T2260/024 , B60W10/184 , B60W10/20 , B60W2520/10 , B60W2520/30 , B60W2720/14 , B62D5/046 , B62D6/003
Abstract: A motor-driven steering controller for controlling a steering wheel of a vehicle. The controller includes a steering torque controlling unit, a braking force estimating unit, a right and left braking force difference estimating unit and an assist steering torque providing unit. The steering torque controlling unit controls a steering torque on the steering wheel depending on a steering operation. The braking force estimating unit estimates braking forces to be imposed on wheels of the vehicle. The right and left braking force difference estimating unit estimates difference between the braking forces to be imposed on the right and left wheels each estimated by the braking forces estimating unit. The assist steering torque providing unit provides an assist steering torque for the steering torque controlling unit on the basis of the difference in braking force between right and left wheels estimated by the right and left braking force difference estimating unit.
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公开(公告)号:US08892305B2
公开(公告)日:2014-11-18
申请号:US12730555
申请日:2010-03-24
Applicant: Yoshiyuki Yasui , Toshihisa Kato , Toshio Yasutake , Atsushi Ikematsu
Inventor: Yoshiyuki Yasui , Toshihisa Kato , Toshio Yasutake , Atsushi Ikematsu
IPC: B60T8/17 , B60T8/1755
CPC classification number: B60T8/17555 , B60T2230/02
Abstract: A motion control device for a vehicle, including a braking means for applying a brake torque to a wheel of the vehicle and maintaining a traveling stability of the vehicle by controlling the braking means, the motion control device for the vehicle, includes a steering angular velocity obtaining means for obtaining a steering angular velocity of the vehicle, a yaw angular acceleration obtaining means for obtaining a yaw angular acceleration of the vehicle, and a control means for controlling the brake torque on the basis of the steering angular velocity and the yaw angular acceleration.
Abstract translation: 一种用于车辆的运动控制装置,包括用于通过控制制动装置将制动扭矩施加到车辆的车轮并保持车辆的行驶稳定性的制动装置,所述车辆的运动控制装置包括转向角速度 用于获得车辆的转向角速度的获取装置,用于获得车辆的偏航角加速度的偏航角加速度获取装置,以及用于基于转向角速度和偏转角加速度来控制制动转矩的控制装置 。
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公开(公告)号:US07997373B2
公开(公告)日:2011-08-16
申请号:US12241209
申请日:2008-09-30
Applicant: Yoshiyuki Yasui , Hideaki Koto , Kenji Asano
Inventor: Yoshiyuki Yasui , Hideaki Koto , Kenji Asano
CPC classification number: B62D7/159 , B60W30/045 , B62D6/003
Abstract: A steering control device for a vehicle includes a first adjustment value determination means for determining a first adjustment value of a value corresponding to a wheel steering angle based on an actual value and a target value of turning state quantity, the first adjustment value is a value directing to approximate the actual value to the target value, and a steering control means for adjusting the wheel steering angle by modifying the value corresponding to the wheel steering angle based on the first adjustment value, wherein the first adjustment value determination means includes an index value obtaining means for obtaining an index value indicating a probability of an occurrence of a side-slip of a wheel and a regulation means for regulating the first adjustment value so that the greater the probability of the occurrence of the side-slip is, the smaller the first adjustment value is set to be.
Abstract translation: 车辆的转向控制装置包括第一调整值确定装置,用于基于实际值和转弯状态量的目标值确定与车轮转向角对应的值的第一调整值,第一调整值是值 将实际值近似为目标值;以及转向控制装置,用于通过基于第一调整值修改对应于车轮转向角的值来调整车轮转向角,其中第一调整值确定装置包括指标值 获取装置,用于获得指示车轮侧滑发生概率的指标值和用于调节第一调整值的调节装置,使得侧滑发生的可能性越大越小, 第一个调整值设置为。
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公开(公告)号:US20110035129A1
公开(公告)日:2011-02-10
申请号:US12850191
申请日:2010-08-04
Applicant: Yoshiyuki Yasui
Inventor: Yoshiyuki Yasui
IPC: G06F19/00
CPC classification number: B60T8/17551 , B60T8/17558 , B60T8/885
Abstract: A motion control device for a vehicle includes a braking means for applying a brake torque to each of a plurality of wheels of the vehicle, an avoidance control means for calculating a first target quantity, used for an avoidance control for applying the brake torque to each wheel via the braking means in order to avoid an emergency state of the vehicle, a stabilization control means for determining a target wheel, to which the brake torque is applied, out of the wheels and calculating a second target quantity used for a stabilization control for applying the brake torque to the target wheel in order to ensure a vehicle stability, and a brake control means for controlling the brake torque applied to a non-target wheel based on the first target quantity and controlling the brake torque applied to the target wheel based on the first and second target quantities.
Abstract translation: 一种用于车辆的运动控制装置,包括用于向车辆的多个车轮中的每一个车轮施加制动转矩的制动装置,用于计算第一目标量的回避控制装置,用于将制动转矩施加到每个的避免控制 通过制动装置的车轮,以避免车辆的紧急状态;稳定控制装置,用于将施加了制动转矩的目标车轮确定出车轮,并计算用于稳定控制的第二目标量, 将制动扭矩施加到目标车轮以确保车辆稳定性;以及制动控制装置,用于基于第一目标量控制施加到非目标车轮的制动转矩,并且控制施加到目标车轮的制动转矩 在第一和第二目标数量。
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