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    Control device for vehicle
    31.
    发明授权
    Control device for vehicle 有权

    公开(公告)号：US10407070B2

    公开(公告)日：2019-09-10

    申请号：US15515084

    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 ,  F02D29/02 ,  F02P5/15 ,  B60K28/10 ,  B60W30/02 ,  F02D41/00 ,  F02D41/02 ,  F02D41/12 ,  F02D17/02

    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 vehicle attitude control executing 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 generate deceleration of the vehicle so as to control vehicle attitude. The PCM (50) is further configured to set a rate of change in the engine output torque being reduced, such that the rate of change becomes larger as the number of times of combustion per unit time in the engine (10) becomes smaller, and to control the engine torque adjustment mechanism to reduce the engine output torque according to the rate of change set by the torque reduction change rate-setting part.

    Vehicle control device
    32.
    发明授权
    Vehicle control device 有权

    公开(公告)号：US10336364B2

    公开(公告)日：2019-07-02

    申请号：US15899688

    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 ,  G05D1/08 ,  B60W30/18 ,  B60W10/06

    Abstract: A vehicle control device is provided, which includes an engine, an engine control mechanism configured to control torque generated by the engine, a processor configured to execute a vehicle attitude controlling module to control attitude of a vehicle by controlling the engine control mechanism to reduce the torque so as to decelerate the vehicle, when a condition that the vehicle is traveling and a steering angle related value that is related to a steering angle of a steering device increases is satisfied, and a torque reduction amount setting module to set the reduction amount of the torque to be larger as a combustion frequency of the engine per unit time decreases. The vehicle attitude controlling module controls the engine control mechanism to reduce the torque based on the set reduction amount.

    Engine control device
    33.
    发明授权
    Engine control device 有权

    公开(公告)号：US10221778B2

    公开(公告)日：2019-03-05

    申请号：US15338106

    申请日：2016-10-28

    Applicant: Mazda Motor Corporation

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

    IPC: G06F19/00 ,  F02D11/10 ,  B60W30/16 ,  F02D41/02 ,  F02D37/02

    Abstract: An engine control device for controlling an engine based on a vehicle operating state is provided, that includes a basic target torque determinator for setting a vehicle target acceleration based on an accelerator pedal operation and determining a basic target engine torque based on the vehicle target acceleration, a torque reduction demand determinator for determining whether an engine torque reduction is demanded based on the vehicle operating state other than the accelerator pedal operation, a torque reduction amount determinator for determining an engine torque reduction amount according to the operating state when the torque reduction is demanded, a final target torque determinator for determining as a final target torque an engine torque calculated by subtracting the torque reduction amount from the basic target torque when the torque reduction is demanded, and an engine controller for controlling the engine so as to output the final target torque.

    Turbocharged engine control device
    34.
    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
    37.
    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.

    Vehicle Control Device
    38.
    发明申请
    Vehicle Control Device 审中-公开

    公开(公告)号：US20180066625A1

    公开(公告)日：2018-03-08

    申请号：US15696456

    申请日：2017-09-06

    Applicant: Mazda Motor Corporation

    Inventor： Keiichi Hiwatashi ,  Yasunori Takahara ,  Daisaku Ogawa ,  Daisuke Umetsu ,  Chikako Ohisa ,  Koichi Kimoto

    IPC: F02P5/15 ,  F02P5/04 ,  F02D41/00 ,  F01N3/10

    CPC classification number: F02P5/1504 ,  F01N3/10 ,  F02D41/0005 ,  F02D41/0007 ,  F02D2200/50 ,  F02P5/045

    Abstract: A vehicle control device is provided, which includes an engine including an ignition plug oriented inside a combustion chamber, a component provided in or near an exhaust passage of the engine, a processor configured to execute a vehicle attitude controlling module for controlling an attitude of a vehicle by retarding an ignition timing of the ignition plug to reduce an engine torque so as to decelerate the vehicle, when a condition is satisfied, the condition being that the vehicle is traveling and a steering angle related value that is related to a steering angle of a steering device increases, and a torque reduction restricting module for restricting a reduction amount of the engine torque as at least one of an engine load and an engine speed increases during the vehicle attitude control.

    Powertrain system for electric automobile
    39.
    发明授权
    Powertrain system for electric automobile 有权

    公开(公告)号：US12077053B2

    公开(公告)日：2024-09-03

    申请号：US17356202

    申请日：2021-06-23

    Applicant: Mazda Motor Corporation

    Inventor： Daisuke Umetsu ,  Shinya Morishita

    IPC: B60L15/20 ,  B60K17/00 ,  B60K26/02 ,  B62D1/04 ,  B60L7/10

    CPC classification number: B60L15/20 ,  B60K17/00 ,  B60K26/02 ,  B62D1/046 ,  B60L7/10 ,  B60L2240/423 ,  B60L2250/28

    Abstract: A powertrain system for an electric automobile outputs a desired torque from a motor with an angle of an accelerator pedal that is easy for a driver to operate, regardless of traveling environments such as the road surface gradient and the wind direction. The powertrain system includes a paddle switch and a shifter that are mounted to be operable by a driver, and are electrically connected directly or indirectly to an electronic control unit (ECU). The ECU controls, based on a torque control map defining the relationship between an accelerator pedal opening and output torque of a motor in advance, the output torque of the motor according to the accelerator pedal opening, and changes, based on an operation on the paddle switch or the shifter, the torque control map to be used for controlling the output torque of the motor.

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