公开(公告)号：US20220144229A1

公开(公告)日：2022-05-12

申请号：US17418600

申请日：2019-12-25

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/1755 ,  B60T8/172

Abstract: A brake control device includes: a decrease determination unit that determines whether a requested braking force for a vehicle is decreasing; and a brake control unit which, on the condition that the decrease determination unit determines that the requested braking force is decreasing during deceleration of the vehicle, executes ratio change decrease control of reducing the braking force of the vehicle according to the decrease of the requested braking force, while making a braking force distribution ratio smaller than a reference braking force distribution ratio. The reference braking force distribution ratio is the braking force distribution ratio at a time point when the requested braking force starts to decrease.

公开(公告)号：US20230331204A1

公开(公告)日：2023-10-19

申请号：US18026871

申请日：2021-09-30

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/58 ,  B60T8/171

CPC classification number: B60T8/58 ,  B60T8/171 ,  B60T2240/00 ,  B60T2210/30 ,  B60T2210/32

Abstract: A vehicle stop determination device includes: a vehicle wheel speed sensor that outputs a signal according to a rotational speed of vehicle wheels; an acquisition unit that acquires a wheel speed at a predetermined reference time that a vehicle decelerates, based on an output signal of the vehicle wheel speed sensor; a derivation unit that derives a stopping position where the vehicle stops, based on the wheel speed acquired by the acquisition unit; and a determination unit that executes a stop determination to determine that the vehicle has stopped, when a difference distance between a position of the vehicle after the reference time and the stopping position is a stop determination value or less.

公开(公告)号：US20230063777A1

公开(公告)日：2023-03-02

申请号：US17790546

申请日：2021-01-14

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/1755

Abstract: A braking control device, when stopping a vehicle in a state where a braking force is being applied to the vehicle, executes a reducing control of reducing the braking force corresponding to a braking request before the vehicle stops and executes an increasing control of increasing the braking force corresponding to the braking request before the reducing control in order to suppress vehicle pitching behavior generated when the braking force is applied to the vehicle. The control device sets braking force increase amount in the increasing control based on a difference distance that is a difference between a first distance correlated with a vehicle traveling distance from a reduction start timing when the reducing control is executed until the stopping of the vehicle and a second distance correlated with a vehicle traveling distance from the reduction start timing when the reducing control is not executed until the stopping of the vehicle.

公开(公告)号：US20220194336A1

公开(公告)日：2022-06-23

申请号：US17431540

申请日：2020-02-12

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/1764 ,  B60T13/66 ,  B60T8/1766 ,  B60T8/50 ,  B60T8/26

Abstract: A braking control device includes: a control unit that is configured to control front-wheel braking power and rear-wheel braking power based on braking power distribution and requested braking power; a distribution setting unit that is configured to set the braking power distribution; and a slip judgment unit that is configured to judge whether or not the vehicle is in a rear-wheel-led slip state. If it is judged that the vehicle is in the rear-wheel-led slip state when the braking power distribution is first braking power distribution, the distribution setting unit executes a distribution shifting process of shifting the braking power distribution to second braking power distribution within a predetermined period. The second braking power distribution is such distribution that the rear-wheel braking power is reduced relative to that observed when the first braking power distribution is set as the braking power distribution.

公开(公告)号：US20210188231A1

公开(公告)日：2021-06-24

申请号：US17267650

申请日：2019-09-20

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/1755 ,  B60T8/24 ,  B60T8/26 ,  B60T8/58

Abstract: A braking control device includes a first control unit configured to execute first control for reducing a target braking force, which is either a front-wheel braking force to be applied to front wheels of a vehicle or a rear-wheel braking force to be applied to rear wheels during increasing of deceleration of the vehicle, in a case that a behavior of the vehicle is unstable as the target braking force is increased; and a second control unit configured to execute second control for reducing a rate of increase in the target braking force and increasing a rate of increase in the front-wheel braking force or the rear-wheel braking force, which is not the target braking force, prior to execution of the first control.

公开(公告)号：US20240227761A9

公开(公告)日：2024-07-11

申请号：US18547351

申请日：2022-03-29

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/88 ,  B60T8/171 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/58 ,  B60T8/92

CPC classification number: B60T8/885 ,  B60T8/171 ,  B60T8/172 ,  B60T8/17551 ,  B60T8/58 ,  B60T8/92 ,  B60T2220/04 ,  B60T2230/04 ,  B60T2240/00 ,  B60T2250/00 ,  B60T2250/04 ,  B60T2270/82

Abstract: A vehicle which adopts a control device as a braking control device includes a sensor that acquires a rotation angle of a wheel. The control device includes a first distance calculation unit, a second distance calculation unit, and a braking control unit. The first distance calculation unit sets a braking force corresponding to a braking operation member operation amount as a reference braking force, estimates vehicle longitudinal acceleration based on the reference braking force, and calculates a braking force reference distance estimating a moving distance until the vehicle stops based on the longitudinal acceleration. The second distance calculation unit calculates a wheel reference distance estimating the vehicle moving distance based on a detection signal of the sensor and a wheel diameter. The braking control unit executes feedback control for controlling the vehicle braking force so that a difference between the braking force reference distance and the wheel reference distance decreases.

公开(公告)号：US20230025963A1

公开(公告)日：2023-01-26

申请号：US17792855

申请日：2021-01-14

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/1755 ,  B60L7/24

Abstract: A control device includes: a first braking unit, that applies a first braking force to a steering wheel of a vehicle; a second braking unit, that applies a second braking force to a non-steering wheel of the vehicle; and a control device that controls the first braking unit, and the second braking unit, according to a target braking force, where the control device includes a steering angle information acquiring unit that acquires a steering angle-related value related to a steering angle of the steering wheel, and a distribution changing unit that executes a distribution change control of changing a braking force distribution between the first braking force and the second braking force based on the steering angle-related value when the target braking force is applied.

公开(公告)号：US20220105809A1

公开(公告)日：2022-04-07

申请号：US17424920

申请日：2020-01-24

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60L7/26 ,  B60T8/1766 ,  B60T8/1755

Abstract: The control device includes a vehicle required braking force acquisition unit that acquires a vehicle required braking force that is a required value of the braking force applied to the vehicle, and a roll control unit that controls the rolling motion of the vehicle by adjusting a distribution ratio of the braking force with respect to a target wheel including at least one of a rear wheel on an inside during turning and a front wheel on an outside during turning of the vehicle when the braking force is applied to the vehicle according to the vehicle required braking force under a situation where the vehicle is turning.

公开(公告)号：US20210114569A1

公开(公告)日：2021-04-22

申请号：US16981165

申请日：2019-03-08

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/1755 ,  B60T7/12 ,  B60W40/11 ,  B60W10/18

Abstract: A brake control device is applied to a brake device that controls a front-wheel braking force and a rear-wheel braking force. The brake control device includes a ratio calculation circuit that calculates a target front and rear braking force distribution ratio based on a target pitch angle, and a brake control circuit that performs a stability control by operating the brake device based on the target front and rear braking force distribution ratio during braking.

公开(公告)号：US20240140376A1

公开(公告)日：2024-05-02

申请号：US18546683

申请日：2022-03-30

Applicant: ADVICS CO., LTD.

Inventor： Yusaku YAMAMOTO

IPC: B60T8/1755

CPC classification number: B60T8/17555 ,  B60T2230/04

Abstract: A braking control device includes a control unit that controls a braking force in accordance with an operation amount of a braking operation member, and a braking determination unit that determines whether or not a reduction in the operation amount of the braking operation member has been started when the braking force is applied to a vehicle due to the operation of the braking operation member. In a case where a reduction rate of the operation amount upon determination that the reduction in the operation amount has been started is equal to or larger than a reduction rate determination value, the control unit starts limitation processing of providing a limitation to the reduction rate of the braking force against the vehicle.