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    Turbocharged engine control device
    21.
    发明授权
    Turbocharged engine control device 有权

    公开(公告)号：US10125670B2

    公开(公告)日：2018-11-13

    申请号：US15429319

    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: F02B37/12 ,  F02B37/16 ,  F02D41/00

    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 the engine so as to cause the 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 where supercharging by a compressor, to restrict control of the engine corresponding to a change in the torque reduction amount.

    Engine control device
    23.
    发明授权
    Engine control device 有权

    公开(公告)号：US10024257B2

    公开(公告)日：2018-07-17

    申请号：US15446420

    申请日：2017-03-01

    Applicant: MAZDA MOTOR CORPORATION

    Inventor： Chikako Ohisa ,  Osamu Sunahara ,  Daisuke Umetsu ,  Takuo Hirano ,  Kunihiro Shishima ,  Takahiro Kawamura ,  Yasunori Takahara ,  Daisaku Ogawa ,  Takeatsu Ito

    IPC: F02D41/00 ,  F02D11/02 ,  F02D41/02 ,  F02P5/04 ,  F02D11/10 ,  F02D37/02 ,  F02P5/15

    Abstract: A PCM 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 engine to cause the engine to output the decided final target torque, wherein the engine output control part is operable to prohibit switching of an operation mode of the engine from being performed simultaneously with control of the engine according to a change in the final target torque corresponding to a change in the torque reduction amount.

    Control method for vehicle, vehicle system, and vehicle controller
    25.
    发明授权
    Control method for vehicle, vehicle system, and vehicle controller 有权

    公开(公告)号：US11840146B2

    公开(公告)日：2023-12-12

    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 ,  B60W10/08 ,  B60W10/184

    CPC classification number: B60L15/2009 ,  B60L7/18 ,  B60L7/26 ,  B60W10/08 ,  B60W10/184 ,  B60L2240/12 ,  B60L2240/14 ,  B60L2240/24 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2720/106

    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).

    Vehicle behavior control device
    26.
    发明授权
    Vehicle behavior control device 有权

    公开(公告)号：US11173884B2

    公开(公告)日：2021-11-16

    申请号：US16208334

    申请日：2018-12-03

    Applicant: MAZDA MOTOR CORPORATION

    Inventor： Osamu Sunahara ,  Daisuke Umetsu ,  Yasunori Takahara

    IPC: B60T8/1755 ,  B60T8/1764 ,  B60W10/184

    Abstract: The vehicle behavior control device comprises a brake control system (18) capable of applying different braking forces, respectively, to right and left road wheels of a vehicle (1). The vehicle behavior control device further comprises: a steering angle sensor (8); a vehicle speed sensor (10); a yaw rate sensor (12); and a yaw moment setting part (22) in PCM (14) configured to decide a target yaw rate of the vehicle based on a steering angle and a vehicle speed, and set, based on a change rate of a difference between an actual yaw rate and the target yaw rate, a yaw moment oriented in a direction opposite to that of the actual yaw rate of the vehicle, as a target yaw moment, whereby the brake control system can regulate the braking forces of the road wheels so as to apply the target yaw moment to the vehicle.

    Vehicle driving force control device
    28.
    发明授权
    Vehicle driving force control device 有权

    公开(公告)号：US10597036B2

    公开(公告)日：2020-03-24

    申请号：US16127529

    申请日：2018-09-11

    Applicant: Mazda Motor Corporation

    Inventor： Yasumasa Imamura ,  Osamu Sunahara ,  Daisuke Umetsu ,  Naoki Nobutani

    IPC: B60W10/06 ,  B60W10/119 ,  B60W30/18 ,  B60K23/08 ,  B60K17/344

    Abstract: The vehicle driving force control device comprises: a behavior control mechanism for reducing a driving force of an engine according to a steering speed; a driving force distribution mechanism for distributing the driving force of the engine to rear road wheels; and an ECU for controlling the mechanisms. The behavior control mechanism reduces the driving force by a target torque reduction amount set based on the steering speed, to thereby generate a deceleration, and the driving force distribution mechanism distributes the driving force to the front road wheels and the rear road wheels based on a distribution rate set for the rear road wheels depending on a traveling state, and the ECU corrects the distribution rate based on the target torque reduction amount during cornering of the vehicle.

    Control device for vehicle
    29.
    发明授权
    Control device for vehicle 有权

    公开(公告)号：US10414400B2

    公开(公告)日：2019-09-17

    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 ,  B60W30/02 ,  B60W30/045 ,  F02D41/00 ,  F02D41/02

    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.

    Vehicle control device
    30.
    发明授权
    Vehicle control device 有权

    公开(公告)号：US10351164B2

    公开(公告)日：2019-07-16

    申请号：US15899750

    申请日：2018-02-20

    Applicant: Mazda Motor Corporation

    Inventor： Daisaku Ogawa ,  Daisuke Umetsu ,  Osamu Sunahara ,  Yasunori Takahara ,  Yuichiro Akiya ,  Chikako Ohisa ,  Atsushi Yamasaki ,  Keiichi Hiwatashi

    IPC: G05B17/00 ,  B62D5/04 ,  B60W10/06 ,  G05D1/08 ,  B60L15/20

    Abstract: A vehicle control device is provided, which includes a drive source configured to generate torque as driving force of a vehicle, a transmission torque control mechanism configured to control transmission torque to drive wheels according to the generated torque, and a processor configured to execute a vehicle attitude controlling module to perform a vehicle attitude control by controlling the transmission torque control mechanism to reduce the transmission torque so as to decelerate the vehicle when a starting condition that the vehicle is traveling and a steering angle related value increases is satisfied, and then, when a given terminating condition is satisfied, controlling the mechanism to resume the transmission torque back to the torque before being reduced. The transmission torque is controlled so as to cause a yaw rate that occurs in the vehicle while the vehicle attitude control is performed, to be lower than an upper limit yaw rate.

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