公开(公告)号：US11198471B2

公开(公告)日：2021-12-14

申请号：US16439183

申请日：2019-06-12

Applicant: MAZDA MOTOR CORPORATION

Inventor： Daisaku Ogawa ,  Daisuke Umetsu ,  Fuminori Kato

IPC: B62D6/10 ,  B60W30/14 ,  B60W30/182 ,  B60W30/18

Abstract: The present invention provides a method of controlling a vehicle (1) in which rear road wheels (2b) are driven. The method includes: a step of selecting a first pedal mode in which an acceleration is set based on a depression amount of an accelerator pedal, or a second pedal mode in which the acceleration and a deceleration are set; a step of setting a basic torque based on a driving state of the vehicle; a step of setting an incremental torque to allow the basic torque to be increased in accordance with an increase in steering angle; and a step of generating a torque which is determined by adding the incremental torque to the basic torque, wherein the incremental torque setting step includes setting the incremental torque to different values between when the first pedal mode is selected and when the second pedal mode is selected.

公开(公告)号：US12049216B2

公开(公告)日：2024-07-30

申请号：US17273719

申请日：2019-09-04

Applicant: MAZDA MOTOR CORPORATION ,  IKUTOKU GAKUEN

Inventor： Takatoshi Tsukano ,  Shohei Yamada ,  Daisuke Umetsu ,  Fuminori Kato ,  Osamu Sunahara ,  Masato Abe ,  Makoto Yamakado ,  Yoshio Kano ,  Kazuki Sato

IPC: B60W30/045 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20

CPC classification number: B60W30/045 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20 ,  B60W2520/06 ,  B60W2540/18

Abstract: A vehicle control method is applied to a vehicle 1 in which a front wheel 2 is driven by an engine 4, and the method includes a basic torque setting step of setting basic torque to be generated by the engine 4, based on an operational state of the vehicle 1; a deceleration torque setting step of setting deceleration torque, based on an increase in steering angle of a steering apparatus 5 mounted on the vehicle 1; a torque generation step of controlling the engine 4 so that torque based on the basic torque and the deceleration torque is generated; and a deceleration torque changing step of changing the deceleration torque, based on a vehicle-width-direction mounting position of a steering wheel 6 and an operation direction of the steering wheel 6 when the steering angle is increased. Thus, vehicle posture control is performed in consideration of the vehicle-width-direction mounting position of the steering wheel 6 and the operation direction of the steering wheel 6, so that a driver fatigue reduction effect of the vehicle posture control can be secured appropriately.

公开(公告)号：US11447112B2

公开(公告)日：2022-09-20

申请号：US16882034

申请日：2020-05-22

Applicant: MAZDA MOTOR CORPORATION

Inventor： Naoki Hiraga ,  Daisuke Umetsu ,  Fuminori Kato ,  Hiroyuki Ogata

IPC: B60T8/24 ,  B60T8/60 ,  B60T8/17 ,  B60T8/1755 ,  B60T8/171 ,  B60T8/26 ,  B60T8/74

Abstract: Disclosed is a vehicle attitude control system for controlling the attitude of a vehicle in which a road wheel suspension is configured such that a roll axis of a vehicle body inclines downwardly in a forward direction. The vehicle attitude control system includes: a lateral acceleration sensor operable to detect a lateral acceleration; a brake actuator operable to apply a braking force; and a brake control device operable, based on a traveling state of the vehicle, to generate the braking force, wherein the brake control device is configured to execute vehicle attitude control of applying, to an inner rear road wheel, a larger braking force when the lateral acceleration of the vehicle is relatively large than when the lateral acceleration is relatively small, thereby suppressing uplift of an inner rear portion of the vehicle body.

公开(公告)号：US11772633B2

公开(公告)日：2023-10-03

申请号：US17273723

申请日：2019-09-04

Applicant: MAZDA MOTOR CORPORATION ,  IKUTOKU GAKUEN

Inventor： Takatoshi Tsukano ,  Shohei Yamada ,  Daisuke Umetsu ,  Fuminori Kato ,  Osamu Sunahara ,  Masato Abe ,  Makoto Yamakado ,  Yoshio Kano ,  Kazuki Sato

IPC: B60W30/045 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20

CPC classification number: B60W30/045 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20 ,  B60W2510/20

Abstract: A vehicle control method is applied to a vehicle 1 in which a front wheel 2 is driven by an engine 4, and the method includes a basic torque setting step of setting basic torque to be generated by the engine 4, based on an operational state of the vehicle 1; an acceleration torque setting step of setting acceleration torque, based on a reduction in steering angle of a steering apparatus 5 mounted on the vehicle 1; a torque generation step of controlling the engine 4 so that torque based on the basic torque and the acceleration torque is generated; and an acceleration torque changing step of changing the acceleration torque, based on a vehicle-width-direction mounting position of a steering wheel 6 and an operation direction of the steering wheel 6 when the steering angle is reduced. Thus, vehicle posture control is performed in consideration of the vehicle-width-direction mounting position of the steering wheel 6 and the operation direction of the steering wheel 6, so that a driver fatigue reduction effect of the vehicle posture control can be secured appropriately.