公开(公告)号：US06640623B2

公开(公告)日：2003-11-04

申请号：US09976163

申请日：2001-10-15

Applicant: Eiichi Ono ,  Takaji Umeno ,  Masaru Sugai ,  Akira Tanaka ,  Yoshiyuki Yasui ,  Mamoru Sawada

Inventor： Eiichi Ono ,  Takaji Umeno ,  Masaru Sugai ,  Akira Tanaka ,  Yoshiyuki Yasui ,  Mamoru Sawada

IPC: E01C2300

CPC classification number: G01N19/02 ,  B60T8/172 ,  B60T8/173 ,  B60T2210/12

Abstract: In order to estimate a braking force gradient in a low slip region including a steady travelling region, there is provided a device comprising a wheel speed sensor for detecting a wheel speed in a predetermined sampling period and outputting time series data of the wheel speed as a wheel speed signal, a break point frequency estimating section for estimating a break point frequency in a gain diagram that represents a frequency response of a first order lag model that approximates a transmission characteristics from road surface disturbances to wheel speed, and a braking force gradient estimating section for estimating a braking force gradient with respect to the estimated break point frequency on the basis of the map showing a relationship between braking force gradient and break point frequency stored in advance.

公开(公告)号：US5935186A

公开(公告)日：1999-08-10

申请号：US749224

申请日：1996-11-15

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

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

IPC: B60T8/175 ,  B60T8/1755 ,  B60T8/1761 ,  B60T8/1764 ,  B60T17/22 ,  B60T13/00

CPC classification number: B60T17/221 ,  B60T8/175 ,  B60T8/1755 ,  B60T8/17616 ,  B60T8/1764 ,  B60T2270/206

Abstract: The present invention is directed to a monitor system for use in an automotive vehicle which includes wheel brake cylinders operatively mounted on wheels, respectively, and which includes a hydraulic pressure control apparatus for generating a hydraulic braking pressure in response to depression of a brake pedal. A difference calculating unit calculates a difference between a wheel speed of a wheel to be determined and a wheel speed of at least one reference wheel which is compared with a predetermined value, when a braking operation detection unit detects a braking operation. Then, a determination unit compares the difference with a predetermined value, and determines that the pressure circuit provided for the wheel to be determined is normal, when the difference is lower than the predetermined value. An output unit may be provided to produce an output signal when a period of time during which the difference continues to be equal to or greater than the predetermined value, exceeds a predetermined time.

Abstract translation: 本发明涉及一种用于机动车辆的监视器系统，其包括分别可操作地安装在车轮上的车轮制动缸，并且包括用于响应于制动踏板的下压产生液压制动压力的液压控制装置。 当制动操作检测单元检测到制动操作时，差分计算单元计算要确定的车轮的车轮速度与至少一个参考轮的车轮速度之间的差值，其与预定值相比较。 然后，确定单元将该差异与预定值进行比较，并且当差值低于预定值时，确定为要确定的车轮提供的压力电路是否正常。 当差异继续等于或大于预定值的时间段超过预定时间时，可以提供输出单元以产生输出信号。

公开(公告)号：US5927830A

公开(公告)日：1999-07-27

申请号：US757770

申请日：1996-11-27

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

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

IPC: B60T8/173 ,  B60T8/1755 ,  B60T8/1763 ,  B60T8/24 ,  B60T8/48 ,  B60T8/62 ,  B60T8/60

CPC classification number: B60T8/246 ,  B60T8/173 ,  B60T8/1755 ,  B60T8/17636 ,  B60T8/4827 ,  B60T2210/14

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 wheel of a vehicle. A vehicle condition monitor is provided for monitoring a condition of the vehicle in motion. The braking force is applied by a braking apparatus to each wheel in response to depression of a brake pedal, and on the basis of an output of the monitor and irrespective of depression of the brake pedal. A control variable is provided for actuating the braking apparatus and set in accordance with at least a first parameter (e.g., wheel acceleration) and a second parameter (e.g., slip rate) which are provided on the basis of the output of the monitor, respectively, so that the control variable is varied in response to the output of the monitor. The control variable is integrated during the braking apparatus is actuated. The actuation of the braking apparatus starts when the control variable exceeds a predetermined level in magnitude, and is terminated when the control variable is within a predetermined zone provided in accordance with the first parameter and the second parameter, and when the controlled variable is less than a predetermined value.

Abstract translation: 本发明涉及一种用于通过控制施加到车辆的至少一个车轮的制动力来维持车辆稳定性的车辆运动控制系统。 提供车辆状态监视器，用于监视车辆运动状态。 响应于制动踏板的下压，并且基于监视器的输出并且不考虑制动踏板的下压，制动力由制动装置施加到每个车轮。 提供控制变量以用于致动制动装置并根据分别基于监视器的输出提供的至少第一参数（例如，车轮加速度）和第二参数（例如，滑差率）进行设定 ，使得控制变量响应于监视器的输出而变化。 在制动装置启动时，控制变量被集成。 当控制变量超过预定值时，制动装置的启动开始，当控制变量在根据第一参数和第二参数提供的预定区域内时终止，当控制变量小于 预定值。

公开(公告)号：US5913578A

公开(公告)日：1999-06-22

申请号：US959072

申请日：1997-10-28

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

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

IPC: B60T8/24 ,  B60T8/1755 ,  B60T8/1761 ,  B60T8/58

CPC classification number: B60T8/1755 ,  B60T2260/02

Abstract: The present invention is directed to a vehicle motion control system for maintaining stability of an automotive vehicle when the vehicle is in motion, by controlling a hydraulic braking pressure control apparatus to control a hydraulic braking pressure in each of wheel brake cylinders operatively mounted on each wheel of the vehicle to control a braking force applied thereto. A steering control unit and an anti-skid control unit are provided for actuating the apparatus to control the braking force applied to at least one of the wheels, respectively. A pressure increase compensating unit is provided for controlling a pressure increasing rate for increasing the braking pressure in at least one of the wheel brake cylinders to a desired pressure which is set after the pressure decreasing operation when the braking pressure with respect to at least one of the wheels is controlled in accordance with the control performed by the steering control unit and the control performed by the anti-skid control unit simultaneously, to be greater than a pressure increasing rate for increasing the braking pressure to the desired pressure in accordance with the control performed only by the anti-skid control unit.

Abstract translation: 本发明涉及一种车辆运动控制系统，用于在车辆运动时保持机动车辆的稳定性，通过控制液压制动压力控制装置来控制可操作地安装在每个车轮上的每个车轮制动缸中的液压制动压力 以控制施加到其上的制动力。 提供转向控制单元和防滑控制单元，用于致动该装置以分别控制施加到至少一个车轮的制动力。 提供了一种增压补偿单元，用于控制增压速率，用于将至少一个车轮制动缸中的制动压力增加到在减压操作之后设定的期望压力，当制动压力相对于至少一个 根据由转向控制单元执行的控制和同时由防滑控制单元进行的控制来控制车轮，大于根据控制将制动压力增加到期望压力的增压速度 仅由防滑控制单元执行。

公开(公告)号：US5752752A

公开(公告)日：1998-05-19

申请号：US758245

申请日：1996-11-27

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 ,  B60T8/17 ,  B60T8/1755 ,  B60T8/62 ,  B60T8/34

CPC classification number: B60T8/17555 ,  B60T2201/16

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 wheel of a vehicle. A vehicle condition monitor monitors a condition of the vehicle in motion. A steering control unit actuates a braking unit to apply the braking force to at least one wheel on the basis of the output of the monitor and irrespective of depression of a brake pedal. An anti-skid control unit actuates the braking unit to control the braking force applied to at least one wheel in response to a rotational condition thereof during braking. A subordinate control unit actuates the braking unit to adjust the braking force control performed by the anti-skid control unit, in accordance with a predetermined relationship between the anti-skid control unit and the subordinate control unit. And, a priority control unit is adapted to give priority the anti-skid control unit over the steering control unit, and give priority the steering control unit over the subordinate control unit, when the condition for starting the braking force control performed by both of the anti-skid control unit and the steering control unit is fulfilled with respect to at least one wheel.

Abstract translation: 本发明涉及一种用于通过控制施加到车辆的至少一个车轮的制动力来维持车辆稳定性的车辆运动控制系统。 车辆状态监视器监视车辆运动状态。 转向控制单元致动制动单元，以基于监视器的输出将制动力施加到至少一个车轮，而不管制动踏板的下压。 防滑控制单元致动制动单元，以响应于其在制动期间的旋转状态来控制施加到至少一个车轮的制动力。 下属控制单元根据防滑控制单元和从属控制单元之间的预定关系来致动制动单元以调整由防滑控制单元执行的制动力控制。 并且，优先级控制单元适于在所述转向控制单元上优先地设置防滑控制单元，并且当用于启动由所述控制单元执行的制动力控制的状态时，将所述转向控制单元优先于所述从属控制单元 防滑控制单元和转向控制单元相对于至少一个车轮实现。

公开(公告)号：US5620239A

公开(公告)日：1997-04-15

申请号：US597912

申请日：1996-02-07

Applicant: Jun Mihara ,  Kenji Tozu ,  Yoshiyuki Yasui ,  Masanobu Fukami ,  Takayuki Itoh ,  Yoshiharu Nishizawa ,  Akio Sakai

Inventor： Jun Mihara ,  Kenji Tozu ,  Yoshiyuki Yasui ,  Masanobu Fukami ,  Takayuki Itoh ,  Yoshiharu Nishizawa ,  Akio Sakai

IPC: B60T8/1755 ,  B60T8/172 ,  B60T8/175 ,  B60T8/1763 ,  B60T8/24 ,  B60T8/26 ,  B60T8/34 ,  B60T8/42 ,  B60T8/48 ,  B60T8/50 ,  B60T8/32

CPC classification number: B60T8/4872 ,  B60T8/17636 ,  B60T8/24 ,  B60T8/266 ,  B60T8/348 ,  B60T8/4275 ,  B60T8/5037

Abstract: The invention is directed to a vehicle motion control system for maintaining vehicle stability by controlling the braking force applied to each wheel, in response to a condition of the vehicle in motion. A predetermined pressure increasing characteristic is provided for the hydraulic braking pressure which is supplied from a pressure control apparatus to wheel brake cylinders, on the basis of the vehicle condition, when the braking force controller initiates the control of the braking force to actuate the pressure control apparatus. And, a predetermined pressure decreasing characteristic is provided for the hydraulic braking pressure, when the braking force controller terminates the control of the braking force. The braking force controller is arranged to control the hydraulic braking pressure supplied from the pressure control apparatus to each wheel brake cylinder in accordance with the pressure increasing characteristic and the pressure decreasing characteristic to maintain the stability of the vehicle.

Abstract translation: 本发明涉及一种车辆运动控制系统，用于响应于车辆运动的状况，通过控制施加到每个车轮的制动力来维持车辆的稳定性。 根据车辆状况，当制动力控制器开始对制动力的控制以致动压力控制时，提供从压力控制装置向车轮制动缸供给的液压制动压力的预定的增压特性 仪器。 并且，当制动力控制器终止制动力的控制时，为液压制动压力提供预定的减压特性。 制动力控制器被配置为根据增压特性和减压特性来控制从压力控制装置向每个车轮制动缸供应的液压制动压力，以保持车辆的稳定性。

公开(公告)号：US5261503A

公开(公告)日：1993-11-16

申请号：US807247

申请日：1991-12-18

Applicant: Yoshiyuki Yasui

Inventor： Yoshiyuki Yasui

IPC: B62D5/04 ,  B62D5/22 ,  B62D5/30 ,  B62D6/00 ,  B62D6/04 ,  B62D7/15 ,  B62D9/00 ,  B62D101/00 ,  B62D111/00 ,  B62D113/00 ,  B62D123/00 ,  B62D137/00 ,  F16H19/04 ,  B67D5/04 ,  B67D5/22

CPC classification number: B62D5/22 ,  B62D5/30 ,  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. The amount of steering provided by the motor is controlled in dependence upon an estimated frictional coefficient between the vehicle and the road, or upon detected values of the environmental temperature and precipitation.

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。 由电动机提供的转向量根据车辆和道路之间的估计摩擦系数，或者环境温度和降水的检测值进行控制。

公开(公告)号：US5230396A

公开(公告)日：1993-07-27

申请号：US805960

申请日：1991-12-12

Applicant: Yoshiyuki Yasui

Inventor： Yoshiyuki Yasui

IPC: B62D5/22 ,  B62D6/04 ,  B62D7/15 ,  B62D9/00

CPC classification number: B62D7/159 ,  B62D5/22 ,  B62D6/04 ,  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：US4852699A

公开(公告)日：1989-08-01

申请号：US32255

申请日：1987-03-31

Applicant: Dean C. Karnopp ,  Yoshiyuki Yasui

Inventor： Dean C. Karnopp ,  Yoshiyuki Yasui

IPC: F16D55/224 ,  B60T13/74 ,  F16D55/2255 ,  F16D65/14 ,  F16D65/18

CPC classification number: F16D55/2255 ,  B60T13/741 ,  F16D65/18 ,  F16D2121/24 ,  F16D2125/40 ,  F16D2125/587 ,  F16D2127/08

Abstract: There is disclosed a disk brake assembly which includes a brake pad adapted to be urged by an electric motor into braking engagement with a brake disk rotatable with, for example, the wheel of a vehicle, the brake pad being supported for pivotal movement about an axis in the plane parallel to and spaced laterally from the face of the brake disk and exposed substantially at a right angle to a line tangent to the periphery of and in the plane of the brake disk and downstream from the brake pad in the direction of rotation of the brake disk whereby the frictional force between the brake pad and the brake disk has a component complementary to the force exerted by the motor to urge the brake pads against the brake disk.

Abstract translation: 公开了一种盘式制动器组件，其包括适于被电动机推动以与可与例如车辆的车轮一起旋转的制动盘制动接合的制动衬块，所述制动衬块被支撑为围绕轴线枢转运动 在与制动盘的表面平行并横向偏离的平面中，与制动盘的周边和制动盘平面相切的直线与制动衬块的沿着旋转方向的下游大致直角地露出 制动盘，由此制动衬块和制动盘之间的摩擦力具有与由电动机施加的力相互补充的部件，以将刹车片推向制动盘。

公开(公告)号：US09889831B2

公开(公告)日：2018-02-13

申请号：US14426697

申请日：2013-09-04

Applicant: ADVICS CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Yoshiyuki Yasui ,  Hiroyuki Kodama ,  Takuya Hirano ,  Naoki Yabusaki ,  Takayuki Yamamoto

Inventor： Yoshiyuki Yasui ,  Hiroyuki Kodama ,  Takuya Hirano ,  Naoki Yabusaki ,  Takayuki Yamamoto

IPC: B60T8/00 ,  B60T8/1761 ,  B60T13/74 ,  B60T8/171 ,  B60T8/172

CPC classification number: B60T8/1761 ,  B60T8/171 ,  B60T8/172 ,  B60T8/17616 ,  B60T13/741 ,  B60T2240/06

Abstract: A vehicle brake control device generates rear wheel braking torque by an electric motor by pressing a friction member against a rotating member rotating together with the rear wheel, reduces rear wheel braking torque by controlling the electric motor based on a target energization amount calculated from a slip state quantity of the rear wheel, and rapidly stops electric motor rotation motion based on an adjusted target energization amount calculated from the target energization amount and a slip state quantity of a front wheel.