公开(公告)号：US20200290578A1

公开(公告)日：2020-09-17

申请号：US16767924

申请日：2018-11-29

Applicant: ADVICS CO., LTD.

Inventor： Masato TERASAKA ,  Chisa KITAHARA

IPC: B60T8/1764 ,  B60T8/1755 ,  B60T13/74 ,  B60T8/24

Abstract: In the case that the road surface is determined to have different friction coefficients on the left and right wheels, this braking control device performs antiskid control for adjusting the increase slope of front wheel braking torque on the side with the higher friction coefficient. A steering angle sensor detects the steering angle, and a yaw rate sensor detects the yaw rate. The device calculates a reference turning amount on the basis of the steering angle, calculates an actual turning amount on the basis of the yaw rate, and sets the increase slope on the basis of the deviation between the reference turning amount and the actual turning amount. Also, if this deviation becomes larger, a correction is made such that the set increase slope becomes smaller. Further, if the deviation becomes smaller, a correction is made such that the set increase slope becomes larger.

公开(公告)号：US20200317174A1

公开(公告)日：2020-10-08

申请号：US16756266

申请日：2018-10-25

Applicant: ADVICS CO., LTD.

Inventor： Masato TERASAKA ,  Chisa KITAHARA

IPC: B60T8/1761 ,  B60T8/52 ,  B60T8/32 ,  B60T8/86

Abstract: This vehicle braking control device executes automatic braking control to adjust a braking torque on the basis of a vehicle target deceleration value corresponding to a distance between the vehicle and an object in front of the vehicle, and executes anti-skid control to suppress excessive wheel slip by adjusting the braking torque on the basis of a wheel speed. The braking control device calculates an actual deceleration value corresponding to the target deceleration value, and executes feedback control on the basis of the target deceleration value and the actual deceleration value such that the actual deceleration value approaches the target deceleration value. The configuration is such that a control gain of the feedback control is reduced when anti-skid control is executed. Further, the configuration may be such that execution of feedback control is prohibited when anti-skid control is executed.

公开(公告)号：US20220118958A1

公开(公告)日：2022-04-21

申请号：US17277843

申请日：2019-10-25

Applicant: ADVICS CO., LTD.

Inventor： Masato TERASAKA ,  Chisa KITAHARA

IPC: B60T8/1755 ,  B60T8/1764

Abstract: In a braking control device, a controller is configured to determine an inside and an outside of a turn by using the yaw rate, to calculate a deflection index based on a standard turning amount corresponding to a steering angle and an actual turning amount corresponding to a yaw rate, to reduce the braking torque of the rear wheel on the outside of the vehicle turn based on the deflection index when an excessive deceleration slip of the rear wheel on the inside of the vehicle turn is inhibited during an execution of anti-skid control.

公开(公告)号：US20160280193A1

公开(公告)日：2016-09-29

申请号：US15033560

申请日：2014-10-29

Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA ,  ADVICS CO., LTD.

Inventor： Hiroaki SETO ,  Kunihide OHASHI ,  Takeshi YAMAMURA ,  Yoshinori TSUJI ,  Hideki TAKADA ,  Kunio KAJIHARA ,  Masato TERASAKA ,  Yutaka HAMAMOTO

IPC: B60T8/1755 ,  B62L3/02 ,  B62K5/027 ,  B62K5/08 ,  B62K5/10 ,  B60T8/17 ,  B62K5/05

CPC classification number: B60T8/17554 ,  B60T8/1706 ,  B60T8/3225 ,  B60T2230/03 ,  B62K5/027 ,  B62K5/05 ,  B62K5/08 ,  B62K5/10 ,  B62K2005/001 ,  B62L3/023

Abstract: A brake system includes a brake activator which reduces, when a slipping condition of a right front wheel is detected based on a signal which is detected by a right detector, both braking forces on the right front wheel and a left front wheel to a lower level than a level of a braking force which is obtained as a result of operation of an input member and which reduces, when a slipping condition of the left front wheel is detected based on a signal which is detected by a left detector, both braking forces on the left front wheel and the right front wheel to a lower level than a level of a braking force which is obtained as a result of operation of the input member.

Abstract translation: 制动系统包括制动器启动器，当基于由右检测器检测到的信号来检测右前轮的滑动状态时，减速器将右前轮和左前轮上的两个制动力降低到较低水平 比通过输入构件的操作获得的制动力的水平低，并且当基于由左侧检测器检测到的信号检测到左前轮的滑动状态时，减小了两个制动力 左前轮和右前轮到比由输入构件的操作获得的制动力的水平低的水平。

公开(公告)号：US20160264110A1

公开(公告)日：2016-09-15

申请号：US15033562

申请日：2014-10-29

Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA ,  ADVICS CO., LTD.

Inventor： Hiroaki SETO ,  Kunihide OHASHI ,  Takeshi YAMAMURA ,  Yoshinori TSUJI ,  Hideki TAKADA ,  Kunio KAJIHARA ,  Masato TERASAKA ,  Yutaka HAMAMOTO

IPC: B60T8/1755 ,  B62K5/10 ,  B62L1/02 ,  B60T8/17 ,  B62K5/05

CPC classification number: B60T8/1755 ,  B60T8/1706 ,  B60T2230/03 ,  B62K5/027 ,  B62K5/05 ,  B62K5/10 ,  B62L1/02

Abstract: A brake system includes a brake activator which controls, when a slipping condition is detected at a central rear wheel based on a signal detected by a central rear detector, the operating condition of a central rear brake based on the signal detected by the central rear detector so as to reduce a braking force on the central rear wheel lower than a braking force which is obtained as a result of operation of an input member. In this state, when an operation quantity of the input member increases as a result of operation of the input member, changing the operating conditions of both a right front brake and a left front brake, the brake activator increases the braking forces in both a right front wheel and a left front wheel according to an operation quantity of the input member.

Abstract translation: 制动系统包括制动器，其基于由中央后部检测器检测到的信号在中央后轮检测到滑动条件时，基于由中央后部检测器检测到的信号来控制中央后部制动器的操作状态 以便将中央后轮上的制动力降低到由于输入构件的操作而获得的制动力。 在这种状态下，当输入构件的操作量增加时，如果改变右前制动器和左前制动器的操作条件，则制动器启动器增加了右两制动力 前轮和左前轮根据输入构件的操作量。

公开(公告)号：US20220410855A1

公开(公告)日：2022-12-29

申请号：US17778984

申请日：2020-11-25

Applicant: ADVICS CO., LTD.

Inventor： Masato TERASAKA ,  Chisa KITAHARA

IPC: B60T8/1761 ,  B60T8/172 ,  B60T8/1769

Abstract: A braking control device includes: a wheel deceleration deriving section that derives decrease rates of wheel speed detection values as wheel deceleration calculation values; an average value deriving section that derives an average value of the wheel deceleration calculation values of wheels FL, FR, RL, and RR as a wheel deceleration average value; a determination section that determines, based on the wheel deceleration average value and an anteroposterior deceleration detection value, whether or not a slip increase state has been occurring for a determination time or longer; and a detection section that detects occurrence of cascade lock when it is determined that the slip increase state has been occurring for the determination time or longer during vehicle braking.

公开(公告)号：US20210347344A1

公开(公告)日：2021-11-11

申请号：US17274244

申请日：2019-09-24

Applicant: ADVICS CO., LTD.

Inventor： Masato TERASAKA ,  Chisa KITAHARA

IPC: B60T8/1761 ,  B60T8/173 ,  B60T8/172

Abstract: A step determination device includes an operation amount sensor that detects an operation amount of a braking operation member, and a controller that determines a step by using the wheel speed and the operation amount. In the step determination device, the controller calculates an actual variable amount by using the wheel speed, calculates an estimated variable amount corresponding to the actual variable amount by using the operation amount, and executes the determination of the step by using the actual variable amount and the estimated variable amount. For example, the controller determines the presence of the step when the deviation between the actual variable amount and the estimated variable amount is not less than a predetermined value, and determines the absence of the step when the deviation is less than the predetermined value.

公开(公告)号：US20210179042A1

公开(公告)日：2021-06-17

申请号：US16759156

申请日：2018-11-29

Applicant: ADVICS CO., LTD.

Inventor： Masato TERASAKA ,  Chisa KITAHARA

IPC: B60T8/1755 ,  B60T8/172 ,  B60T8/171

Abstract: A braking control device includes an actuator, a controller, a steering angle sensor, and a yaw rate sensor. The controller calculates a reference turning amount, an actual turning amount, an understeer index, sets to a non-adjustment region in which the increase slope is not decreased when the understeer index is smaller than or equal to a first threshold value, sets to an adjustment region in which the increase slope is decreased when the understeer index is greater than or equal to a second threshold value greater than the first threshold value, and sets to a transition region in which the increase slope is decreased when the understeer index is transitioned from the non-adjustment region and the increase slope is not decreased when the understeer index is transitioned from the adjustment region when the understeer index is greater than the first threshold value and smaller than the second threshold value.

公开(公告)号：US20190256099A1

公开(公告)日：2019-08-22

申请号：US16347224

申请日：2017-11-10

Applicant: ADVICS CO., LTD.

Inventor： Yohei MIZUGUCHI ,  Masato TERASAKA

IPC: B60W30/18 ,  B60W40/105

Abstract: Anti-skid control is performed by switching between a reduction mode for reducing braking torque and an increase mode for increasing braking torque based on a comparison between four wheel speeds and vehicle body speed. A controller calculates wheel accelerations based on wheel speeds and includes a control mode condition where the reduction mode is selected at each wheel and a wheel acceleration condition where each wheel acceleration is within a predetermined value range. If a state in which the control mode condition and the wheel acceleration condition are simultaneously satisfied is maintained over a predetermined time period, the controller determines that a residual state is satisfied. When the residual state is not satisfied, the controller calculates vehicle body speed based on the maximum value of the wheel speeds, whereas when the residual state is satisfied, the controller calculates vehicle body speed based on the minimum value of the wheel speeds.

公开(公告)号：US20160193989A1

公开(公告)日：2016-07-07

申请号：US14654732

申请日：2013-12-25

Applicant: ADVICS CO., LTD.

Inventor： Masato TERASAKA ,  Shinji TSUKAMOTO

IPC: B60T8/1764 ,  B60T8/1755

CPC classification number: B60T8/1764 ,  B60T8/17551

Abstract: A vehicle brake control device performs select-low anti-lock brake control. In the select-low anti-lock brake control, in a decrease period, in which braking force on a first wheel that is one of left and right wheels that has a lower wheel speed is decreased, braking force on a second wheel that is one of the left and right wheels that has a higher wheel speed is also decreased. In an increase period, in which the braking force on the first wheel is increased, the braking force on the second wheel is also increased. The vehicle brake control device is configured such that, when performing the anti-lock brake control, the vehicle brake device sets the braking force on the second wheel to be greater when the tendency for instability in the vehicle behavior is small than when such tendency is large.

Abstract translation: 车辆制动控制装置执行选择低的防抱死制动控制。 在选择低的防抱死制动控制中，在作为具有较低车轮速度的左右轮之一的第一车轮上的制动力减小的减速期间，作为一侧的第二车轮的制动力 具有较高车轮速度的左右车轮也减小。 在第一车轮上的制动力增大的增加期间，第二车轮上的制动力也增加。 车辆制动控制装置被构造成使得当执行防抱死制动控制时，当车辆行为不稳定的趋势小时，车辆制动装置将第二车轮上的制动力设定得更大， 大。