公开(公告)号：US20240278828A1

公开(公告)日：2024-08-22

申请号：US18407316

申请日：2024-01-08

Applicant: Honda Motor Co., Ltd.

Inventor： Ryo KOYAMA ,  Masayuki KIKUCHI

IPC: B62D6/00

CPC classification number: B62D6/003 ,  B62D6/006

Abstract: A vehicle attitude control device includes: a vehicle speed detector, detecting a vehicle speed; a travel road surface condition estimator, estimating a road friction coefficient; an actual yaw rate detector, detecting an actual yaw rate; a front wheel steering angle detector, detecting a front wheel steering angle; a standard yaw rate calculator, setting a rear wheel sideslip angle limit value, calculating a front wheel steering angle limit value according to the vehicle speed, the road friction coefficient and the rear wheel sideslip angle limit value, and calculating a standard yaw rate based on the front wheel steering angle and the vehicle speed, in which the front wheel steering angle is limited by the front wheel steering angle limit value; and a yaw moment calculator, generating a yaw moment based on a deviation between the actual yaw rate and the standard yaw rate.

公开(公告)号：US20240042980A1

公开(公告)日：2024-02-08

申请号：US18365338

申请日：2023-08-04

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kentaro KASUYA ,  Ryo KOYAMA ,  Tomohiro HOSONO

IPC: B60T8/58 ,  B60T7/12

CPC classification number: B60T8/58 ,  B60T7/12 ,  B60T2250/04 ,  B60T2220/00 ,  B60T2240/00 ,  B60T2201/022

Abstract: A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed, a distribution amount setter that sets a distribution amount of a brake force to each of multiple wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control of each of the multiple wheels according to the distribution amount set by the distribution amount setter. When the vehicle speed is equal to or lower than a 22nd vehicle speed value within a low vehicle speed range, the distribution amount setter sets the distribution amount of a brake force to each of the multiple wheels including a specific wheel to a value which is smaller than a distribution amount when the vehicle speed exceeds the 22nd vehicle speed value.

公开(公告)号：US20220306062A1

公开(公告)日：2022-09-29

申请号：US17676502

申请日：2022-02-21

Applicant: HONDA MOTOR CO., LTD.

Inventor： Naoto OKUBO ,  Shigeru DOI ,  Ryo KOYAMA

IPC: B60T8/58 ,  B60T8/171

Abstract: The vehicle control system includes a braking force generating device (6, 22) configured to generate a braking force to shift a load of a vehicle to a side of front wheels thereof at an initial stage of a cornering, and a control device (31) configured to control the braking force generated by the braking force generating device. The control device calculates an additional deceleration (Gxadd) according to vehicle state information, calculates a lateral jerk equivalent value (Jy) according to the vehicle state information, and sets a lateral jerk correction coefficient (Kj) for weakening the additional deceleration. The control device corrects the additional deceleration by the lateral jerk correction coefficient (K), and calculates an additional braking force (Fbadd) to be generated by the braking force generating device according to the corrected additional deceleration.

公开(公告)号：US20240217492A1

公开(公告)日：2024-07-04

申请号：US18395637

申请日：2023-12-25

Applicant: HONDA MOTOR CO., LTD.

Inventor： Tomohiro HOSONO ,  Kentaro KASUYA ,  Tomohiro WATANABE ,  Ryo KOYAMA

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

CPC classification number: B60T8/17551 ,  B60T8/246 ,  B60T8/58 ,  B60T2201/16 ,  B60T2220/04 ,  B60T2250/04

Abstract: A behavior stabilizer of a vehicle braking force control device includes a plurality of first valves configured to control movement of a hydraulic fluid to respective friction brakes, second valves configured to control the movement of the hydraulic fluid to reservoirs, and a drive motor configured to drive pumps that pump the hydraulic fluid from the reservoirs into a path leading to a hydraulic pressure generator. When a vehicle is in a state of turning at a specific vehicle speed or lower, a controller executes a turning control to control operation of an electric actuator to cause the hydraulic pressure generator to generate hydraulic pressure, and to control open/closed states of the first valves and the second valves to apply a braking force to a plurality of wheels. The controller keeps the driving of the drive motor in a stopped state during the turning control.

公开(公告)号：US20230391317A1

公开(公告)日：2023-12-07

申请号：US18299073

申请日：2023-04-12

Applicant: Honda Motor Co., Ltd.

Inventor： Naoto OKUBO ,  Ryo KOYAMA

IPC: B60W30/045 ,  B60W40/114

CPC classification number: B60W30/045 ,  B60W40/114 ,  B60W2520/10 ,  B60W2520/14 ,  B60W2720/10 ,  B60W2720/14

Abstract: Disclosed is a vehicle turning control device, which includes an operation state detection device, a vehicle speed detection device, and a target yaw moment calculation device. In the target yaw moment calculation device, the yaw moment of inertia calculation means calculates the yaw moment of inertia based on the vehicle speed when the vehicle turns. The yaw damping calculation means calculates yaw damping based on the vehicle speed when the vehicle turns. The lateral deviation angular velocity calculation means calculates the lateral deviation angular velocity based on the yaw moment of inertia and yaw damping. The target yaw moment calculation means calculates a target yaw moment of the vehicle based on the lateral deviation angular velocity. The yaw moment of inertia calculation means calculates the yaw moment of inertia based on the first correction amount. The yaw damping calculation means calculates yaw damping based on the second correction amount.

公开(公告)号：US20220203990A1

公开(公告)日：2022-06-30

申请号：US17559269

申请日：2021-12-22

Applicant: HONDA MOTOR CO., LTD.

Inventor： Naoto OKUBO ,  Masahiro HIROTA ,  Ryo KOYAMA ,  Jasvin PATHEJA

IPC: B60W30/18 ,  B60W10/184 ,  B60W10/20 ,  B62D7/15 ,  B62D6/10

Abstract: A vehicle control system provided with a control device that includes a control lateral acceleration calculation unit that calculates a control lateral acceleration from a lateral acceleration obtained by using a planar two degrees of freedom model of a vehicle based on vehicle state information and disregarding a second order delay component determined from vehicle specifications, a steer drag differential value calculation unit that calculates a steer drag differential value, an additional deceleration calculation unit that calculates an additional deceleration to be applied to the vehicle according to the steer drag differential value, and an additional braking force calculation unit that calculates an additional braking force to be generated by the braking force generator according to the additional deceleration.

公开(公告)号：US20240425023A1

公开(公告)日：2024-12-26

申请号：US18608959

申请日：2024-03-19

Applicant: Honda Motor Co., Ltd.

Inventor： Kentaro KASUYA ,  Shuichi OKADA ,  Ryo KOYAMA

IPC: B60T8/24 ,  B60T7/12 ,  B60T8/171 ,  B60T8/172 ,  B60T8/26 ,  B60T8/58

Abstract: Disclosed are a brake force distribution device for vehicle and method thereof. The brake force distribution device for vehicle includes: a turning state detection part detecting whether the vehicle is in a turning state based on the driving state of the vehicle; a vehicle speed detection part detecting whether the vehicle speed is equal to or less than a prescribed threshold; a first yaw moment calculation part calculating the first yaw moment based on the driving state of the vehicle, the vehicle speed and the first wheelbase; a second yaw moment calculation part calculating the second yaw moment based on the driving state and the vehicle speed as well as based on the second wheelbase which is the inherent value of the vehicle; and a target moment calculation part calculating a target moment based on the difference between the first yaw moment and the second yaw moment.

公开(公告)号：US20240286599A1

公开(公告)日：2024-08-29

申请号：US18403719

申请日：2024-01-04

Applicant: Honda Motor Co., Ltd.

Inventor： Ryo KOYAMA ,  Masayuki KIKUCHI ,  Shigeru DOI ,  Naoto OKUBO

IPC: B60W10/16 ,  B60W30/045

CPC classification number: B60W10/16 ,  B60W30/045 ,  B60W10/20 ,  B60W30/09 ,  B60W2510/20 ,  B60W2510/202 ,  B60W2510/205 ,  B60W2510/207 ,  B60W2520/105 ,  B60W2520/125 ,  B60W2520/28 ,  B60W2540/165 ,  B60W2540/18 ,  B60W2552/15 ,  B60W2710/20 ,  B60W2710/202 ,  B60W2710/205 ,  B60W2710/207 ,  B60W2720/406

Abstract: A vehicle behavior control method is suitable for a vehicle behavior control device. The vehicle behavior control device includes: a lateral acceleration sensor, detecting lateral acceleration occurring in a vehicle body; a wheel speed sensor, detecting a wheel speed of a wheel; a steering angle sensor, detecting a steering angle of the wheel; a steering angle lateral acceleration calculation unit, calculating steering angle lateral acceleration from the wheel speed and the steering angle; and a yaw moment control unit, applying yaw moment to the vehicle body. In the vehicle behavior control method, when the lateral acceleration and the steering angle lateral acceleration meet a predetermined condition, a yaw moment directed inward in a turning direction of the vehicle body is applied by the yaw moment control unit.

公开(公告)号：US20240042981A1

公开(公告)日：2024-02-08

申请号：US18365341

申请日：2023-08-04

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kentaro KASUYA ,  Ryo KOYAMA ,  Tomohiro HOSONO

IPC: B60T8/58 ,  B60T7/12

CPC classification number: B60T8/58 ,  B60T7/12 ,  B60T2250/04 ,  B60T2220/00

Abstract: A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed; a brake force setter that sets a brake force to each of a plurality of wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control for each of the plurality of wheels using the brake force set by the brake force setter, wherein the brake force setter remains the first brake force for the first specific wheel during a turn-over operation while the turn-over operation is performed from the one side steering position through a neutral position to other side steering position.

公开(公告)号：US20240042979A1

公开(公告)日：2024-02-08

申请号：US18365332

申请日：2023-08-04

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kentaro KASUYA ,  Ryo KOYAMA ,  Tomohiro HOSONO

IPC: B60T8/58 ,  B60T7/22

CPC classification number: B60T8/58 ,  B60T7/22 ,  B60T2250/04 ,  B60T2220/00 ,  B60T2210/32 ,  B60T2201/022

Abstract: A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed, a distribution amount setter that sets a distribution amount of a brake force to each of multiple wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control of each of the multiple wheels according to the distribution amount set by the distribution amount setter. The distribution amount setter sets the distribution amount to zero when the steering angle SA is less than a first steering angle threshold where the steering angle SA is recognizable as a substantially neutral state.