公开(公告)号：US20210062709A1

公开(公告)日：2021-03-04

申请号：US16960502

申请日：2019-01-22

Applicant: MAZDA MOTOR CORPORATION

Inventor： Shinji TAKAYAMA ,  Takeatsu ITO ,  Michio ITO ,  Kenko UJIHARA ,  Daisaku OGAWA ,  Daisuke UMETSU

IPC: F02B11/00 ,  F02D41/02 ,  F02P5/14 ,  F02D41/14 ,  B62D15/02

Abstract: When an incremental amount of a steering angle exceeds a reference incremental amount, an ECU 60 executes vehicle attitude control of reducing an output torque of an engine, and, in a given operating range, drives a spark plug 16 to allow an air-fuel mixture to be self-ignited at a given timing, thereby executing SPCCI combustion. When there is a request for an additional deceleration from the vehicle attitude control (#12: YES) and the SPCCI combustion is performed (#13: YES), the ECU 60 prohibits ignition retardation and performs torque reduction for the vehicle attitude control, by fuel amount reduction control of reducing the amount of fuel to be supplied into a cylinder 2 (#14). On the other hand, when the SPCCI combustion is not performed (NO in #13), the ECU 60 performs the ignition retardation to attain the torque reduction for the vehicle attitude control (#15).

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：US20190389510A1

公开(公告)日：2019-12-26

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

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：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.