公开(公告)号：US20210339735A1

公开(公告)日：2021-11-04

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

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.

公开(公告)号：US20210316717A1

公开(公告)日：2021-10-14

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 ,  B60W10/20 ,  B60W10/18

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：US20190061739A1

公开(公告)日：2019-02-28

申请号：US16084246

申请日：2017-03-30

Applicant: MAZDA MOTOR CORPORATION

Inventor： Toru YOSHIOKA ,  Daisuke UMETSU ,  Osamu SUNAHARA ,  Yasunori TAKAHARA ,  Masaki CHIBA

IPC: B60W30/02

Abstract: There is provided a vehicle behavior control device capable of improving responsivity of a vehicle behavior and a linear feeling with respect to a steering wheel operation without causing a driver to experience a strong feeling of intervention of the control, and capable of controlling behavior in such a manner as to improve stability of the vehicle attitude and riding comfort. The device includes a PCM which acquires a steering speed relating to a jerk in a width direction of the vehicle, sets a torque reduction flag, indicative of whether or not a condition for allowing reduction of an output torque of an engine is satisfied, based on the steering speed, and starts to reduce a torque when the torque reduction flag is set to True indicative of a state in which the condition for allowing reduction of the torque is satisfied.

公开(公告)号：US20180281780A1

公开(公告)日：2018-10-04

申请号：US15763696

申请日：2016-12-22

Applicant: MAZDA MOTOR CORPORATION

Inventor： Keiichi HIWATASHI ,  Daisuke UMETSU ,  Osamu SUNAHARA ,  Koichi KIMOTO ,  Yasunori TAKAHARA ,  Daisaku OGAWA ,  Chikako OHISA

IPC: B60W30/045 ,  B60W40/114 ,  B62D6/00 ,  F02D17/02

CPC classification number: B60W30/045 ,  B60W40/114 ,  B60W2540/10 ,  B60W2710/0666 ,  B60W2710/105 ,  B62D6/00 ,  B62D6/003 ,  F02D17/02

Abstract: Disclosed is a vehicle control device which is applied to a vehicle equipped with an engine (10) and an engine torque adjustment mechanism for adjusting an engine torque. The control device comprises a PCM (50) configured, upon satisfaction of a condition that the vehicle is traveling and a steering angle-related value relevant to a steering angle of a steering device is increasing, to control the engine torque adjustment mechanism to reduce the engine torque, so as to execute a vehicle attitude control for generating vehicle deceleration. The PCM (50) is configured, upon satisfaction of a vehicle attitude control-terminating condition for terminating the vehicle attitude control, to control the engine torque adjustment mechanism to restore the engine torque to an original level of torque before the execution of the vehicle attitude control. The PCM (50) is further configured to gradually ease the vehicle attitude control-terminating condition, as the number of times of combustion per unit time in the engine (10) becomes smaller.

公开(公告)号：US20210039504A1

公开(公告)日：2021-02-11

申请号：US16965947

申请日：2019-01-29

Applicant: MAZDA MOTOR CORPORATION

Inventor： Daisuke UMETSU ,  Osamu SUNAHARA ,  Daisaku OGAWA

IPC: B60L15/20 ,  B60L7/18 ,  B60L7/26 ,  B60W10/184 ,  B60W10/08

Abstract: In a control method for a vehicle and a vehicle controller that add deceleration to a vehicle so as to control a vehicle posture when a turning operation of a steering system is performed, the deceleration is appropriately set on the basis of an operation of a single pedal. The control method for the vehicle includes: a step of adding the deceleration that corresponds to an accelerator pedal depression amount to a vehicle 1 when the accelerator pedal depression amount is smaller than a specified value A1 that is larger than 0; a step of determining whether the turning operation of the steering system is performed on the basis of a steering angle detected by a steering angle sensor 8; a step of adding the deceleration to the vehicle 1 so as to control the vehicle posture when it is determined that the turning operation of the steering system is performed; and a step of setting the deceleration added to the vehicle to a smaller value when the accelerator pedal depression amount is smaller than the specified value and is a first value than when the accelerator pedal depression amount is smaller than the specified value and is a second value (>the first value).

公开(公告)号：US20180347477A1

公开(公告)日：2018-12-06

申请号：US15515101

申请日：2016-09-09

Applicant: MAZDA MOTOR CORPORATION

Inventor： Keiichi HIWATASHI ,  Yasunori TAKAHARA ,  Daisaku OGAWA ,  Daisuke UMETSU ,  Osamu SUNAHARA ,  Koichi KIMOTO ,  Chikako OHISA

IPC: F02D17/02 ,  F02D29/02 ,  F02D41/12 ,  F02D45/00

CPC classification number: F02D17/02 ,  F02D29/02 ,  F02D41/12 ,  F02D45/00 ,  F02P5/15

Abstract: A control device for a vehicle includes: an engine (10); an engine torque adjustment mechanism for adjusting an output torque of the engine; and a PCM (50) configured, upon satisfaction of a condition that the vehicle is traveling, and that a steering angle-related value pertaining to a steering angle of a steering system is increasing, to control the engine torque adjustment mechanism to reduce the engine torque to thereby generate deceleration of the vehicle so as to control vehicle attitude. The PCM (50) is configured to set a time period from the satisfaction of the condition through until start of reduction in the engine torque, such that it becomes longer, as the number of times of combustion per unit time in the engine becomes larger, and to control the engine torque adjustment mechanism to start to reduce the engine torque when the set time period has elapsed.

公开(公告)号：US20180345977A1

公开(公告)日：2018-12-06

申请号：US15515115

申请日：2016-09-09

Applicant: MAZDA MOTOR CORPORATION

Inventor： Keiichi HIWATASHI ,  Daisuke UMETSU ,  Osamu SUNAHARA ,  Koichi KIMOTO ,  Yasunori TAKAHARA ,  Daisaku OGAWA ,  Chikako OHISA

IPC: B60W30/18 ,  F02D41/12 ,  F02D41/00

CPC classification number: B60W30/18145 ,  B60K28/10 ,  B60W30/02 ,  B60W2510/0638 ,  B60W2540/10 ,  B60W2540/18 ,  B60W2710/0666 ,  B60W2710/0672 ,  F02D17/02 ,  F02D29/02 ,  F02D41/0087 ,  F02D41/12 ,  F02D2200/101 ,  F02D2200/60 ,  F02P5/15

Abstract: A control device for a vehicle includes: an engine (10); an engine torque adjustment mechanism; and a PCM (50) configured, upon satisfaction of a condition that the vehicle is traveling and a steering angle-related value is increasing, to control the engine torque adjustment mechanism to reduce the engine torque to thereby execute a vehicle attitude control for generating deceleration of the vehicle, and, upon satisfaction of a given terminating condition for terminating the vehicle attitude control, to restore the reduced engine output torque to an original state before the execution of the vehicle attitude control. The PCM (50) sets a time period from the satisfaction of the terminating condition through until start of restoration of the engine torque, such that it becomes longer as the number of times of combustion per unit time becomes larger, and starts to restore the engine torque when the set time period has elapsed.

公开(公告)号：US20180345975A1

公开(公告)日：2018-12-06

申请号：US15515054

申请日：2016-09-09

Applicant: MAZDA MOTOR CORPORATION

Inventor： Keiichi HIWATASHI ,  Chikako OHISA ,  Daisuke UMETSU ,  Osamu SUNAHARA ,  Koichi KIMOTO ,  Yasunori TAKAHARA ,  Daisaku OGAWA

IPC: B60W30/18 ,  F02D41/12 ,  F02D41/00

CPC classification number: B60W30/18145 ,  B60W30/02 ,  B60W30/045 ,  B60W30/18063 ,  B60W30/18172 ,  B60W2510/0638 ,  B60W2510/0657 ,  B60W2540/18 ,  B60W2710/0666 ,  F02D41/0087 ,  F02D41/021 ,  F02D41/12 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2200/50 ,  F02D2200/60 ,  F02D2250/21

Abstract: A control device for a vehicle includes: an engine (10); an engine torque adjustment mechanism; and a PCM (50) configured to execute vehicle attitude control for, upon satisfaction of a vehicle attitude control executing condition that the vehicle is traveling and a steering angle-related value is increasing, reducing the engine torque to thereby generate deceleration of the vehicle. The PCM (50) is configured, upon satisfaction of a given terminating condition for terminating the vehicle attitude control, to control the engine torque adjustment mechanism to restore the reduced engine torque to an original state before the execution of the vehicle attitude control. The PCM (50) sets a rate of change in the engine output torque being restored, such that it becomes larger as the number of times of combustion per unit time becomes smaller, and restores the engine torque according to the rate of change set in the above manner.

公开(公告)号：US20170234247A1

公开(公告)日：2017-08-17

申请号：US15429354

申请日：2017-02-10

Applicant: MAZDA MOTOR CORPORATION

Inventor： Chikako OHISA ,  Osamu SUNAHARA ,  Daisuke UMETSU ,  Taizo OHMAE ,  Yugou SUNAGARE ,  Yasunori TAKAHARA ,  Daisaku OGAWA ,  Takahiro KAWAMURA ,  Takeatsu ITO

IPC: F02D41/00 ,  F02P5/145 ,  F02D9/08 ,  F02M35/10 ,  F02D37/02 ,  F02D41/26

CPC classification number: F02D41/0007 ,  F02B2037/125 ,  F02D9/08 ,  F02D11/105 ,  F02D23/00 ,  F02D37/02 ,  F02D41/021 ,  F02D41/26 ,  F02D2200/602 ,  F02D2250/18 ,  F02M35/10157 ,  F02P5/145 ,  F02P5/1516 ,  Y02T10/144 ,  Y02T10/42

Abstract: The turbocharged engine control device comprises a basic target torque-deciding part for deciding a basic target torque based on a driving state of a vehicle including an accelerator pedal operation state; a torque reduction amount-deciding part for deciding a torque reduction amount based on a driving state of the vehicle other than the accelerator pedal operation state; a final target torque-deciding part for deciding a final target torque based on the decided basic target torque and the decided torque reduction amount; and an engine output control part for controlling an intake air amount so as to realize a target air amount required for an engine to output the decided final target torque, wherein the engine output control part is operable, when an operating state of the engine falls within a supercharging region, to restrict a reduction in the intake air amount corresponding to a change in the torque reduction amount.

公开(公告)号：US20210039624A1

公开(公告)日：2021-02-11

申请号：US16965901

申请日：2019-01-29

Applicant: MAZDA MOTOR CORPORATION

Inventor： Daisuke UMETSU ,  Osamu SUNAHARA ,  Daisaku OGAWA

IPC: B60W10/196 ,  B60W20/14

Abstract: In a control method for a vehicle that adds deceleration to a vehicle so as to control a vehicle posture when a turning operation of a steering system is performed, the deceleration is appropriately set on the basis of an operation of a single pedal. The control method for the vehicle includes: a step of adding the deceleration that corresponds to an accelerator pedal depression amount to a vehicle 1 when the accelerator pedal depression amount detected by an accelerator operation amount sensor 10 is smaller than a specified value A1 that is larger than 0; a step of determining whether the turning operation of the steering system is performed on the basis of a steering angle detected by a steering angle sensor 8; a step of adding the deceleration to the vehicle 1 so as to control the vehicle posture when it is determined that the turning operation of the steering system is performed; and a step of setting the deceleration on the basis of the accelerator pedal depression amount detected by the accelerator operation amount sensor 10, the deceleration being added to the vehicle 1 when it is determined that the turning operation of the steering system is performed.