公开(公告)号：US11433879B2

公开(公告)日：2022-09-06

申请号：US16758059

申请日：2018-11-29

Applicant: MAZDA MOTOR CORPORATION

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

IPC: B60W30/045 ,  B60W30/18 ,  B62D1/04 ,  F02D11/02

Abstract: A vehicle control system comprises: an engine (4); an accelerator position sensor (10) configured to detect the position of an accelerator pedal; a steering device; a PCM (14) configured to generate a deceleration in the vehicle to control the attitude of the vehicle, when a steering angle-related value as a parameter related to a steering angle of the steering device increases; and a brake unit (16) configured to generate a deceleration in the vehicle, independently of reduction of an output torque of the engine, wherein the PCM is configured to generates the deceleration by means of the reduction of the output torque of the engine when a depression of the accelerator pedal is detected by the accelerator position sensor, and to generate the deceleration by the brake unit (16) when the depression of the accelerator pedal is not detected by the accelerator position sensor.

公开(公告)号：US10562537B2

公开(公告)日：2020-02-18

申请号：US15713330

申请日：2017-09-22

Applicant: MAZDA MOTOR CORPORATION

Inventor： Keiichi Hiwatashi ,  Daisuke Umetsu ,  Osamu Sunahara ,  Yasunori Takahara ,  Daisaku Ogawa ,  Takahiro Kawamura ,  Chikako Ohisa

IPC: B60W40/105 ,  B60W10/02 ,  B60W10/04 ,  B60W40/10 ,  F02P5/15

Abstract: The vehicle control device is designed to control a vehicle equipped with an engine, and an automatic transmission comprising a torque converter with a lockup clutch. The vehicle control device comprises a controller configured to perform control of changing an engagement degree of the lockup clutch and to, when such a condition that the vehicle is traveling and a steering angle-related value as a parameter related to a steering angle of a steering apparatus of the vehicle increases is satisfied, reduce an output torque of the engine to generate a deceleration of the vehicle to thereby execute a torque reduction control for controlling an attitude of the vehicle. The controller is configured to reduce the output torque of the engine, in accordance with the engagement degree of the lockup clutch controlled by a lockup control.

公开(公告)号：US10465614B2

公开(公告)日：2019-11-05

申请号：US15763681

申请日：2016-12-22

Applicant: MAZDA MOTOR CORPORATION

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

IPC: B60W30/045 ,  F02D17/02 ,  B60W40/114 ,  B62D6/00 ,  B60W30/18 ,  F02D31/00

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 output torque (engine torque) of the engine (10). The vehicle 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 generate vehicle deceleration to control vehicle attitude. The PCM (50) is further configured to gradually ease the condition, as the number of times of combustion per unit time in the engine (10) becomes smaller.

公开(公告)号：US20170145931A1

公开(公告)日：2017-05-25

申请号：US15338081

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: F02D37/02 ,  F02D41/00 ,  F02P5/145

Abstract: An engine control device is provided, that includes an air amount controller, an ignition timing controller, a basic target torque determinator which determines a basic target torque, a change rate acquirer for acquiring a change rate of a steering operation, a target additional deceleration setter for increasing a target additional deceleration while an increase rate thereof becomes less as the change rate increases, a torque reduction amount determinator for determining an engine torque reduction amount, a final target torque determinator for determining a final target torque, and an actual air amount estimator for estimating an actual air amount introduced into a combustion chamber. The air amount controller determines a target air amount and controls the intake air amount to achieve the target air amount. The ignition timing controller retards the ignition timing more as the actual air amount becomes more excessive with respect to the target amount.

公开(公告)号：US20170089276A1

公开(公告)日：2017-03-30

申请号：US15256129

申请日：2016-09-02

Applicant: Mazda Motor Corporation

Inventor： Yugou Sunagare ,  Takafumi Nishio ,  Chikako Ohisa ,  Masayoshi Higashio

IPC: F02D41/00 ,  F02B39/16 ,  F02M35/10 ,  F02D41/10

CPC classification number: F02D41/0007 ,  F02B39/16 ,  F02D11/105 ,  F02D41/0047 ,  F02D41/10 ,  F02D41/12 ,  F02D2041/001 ,  F02D2200/0406 ,  F02D2200/602 ,  F02D2200/703 ,  F02M35/10157 ,  F02M35/10373 ,  Y02T10/144

Abstract: A control system of a turbocharged engine is provided, which includes a turbocharger having a compressor disposed in an intake passage, a bypass passage for bypassing the compressor in the intake passage, and a bypass valve provided to the bypass passage and for opening and closing the bypass passage. The control system includes a processor configured to execute a surge estimating module for estimating an occurrence of a surge, a bypass valve controlling module for opening the bypass valve when the surge estimating module estimates that the surge occurs, and a target air charge amount setting module for suppressing, when the bypass valve controlling module opens the bypass valve, a reduction of a target air charge amount until the opening operation of the bypass valve completes.

公开(公告)号：US20160033039A1

公开(公告)日：2016-02-04

申请号：US14731158

申请日：2015-06-04

Applicant: Mazda Motor Corporation

Inventor： Atsushi Yamasaki ,  Kyohei Ike ,  Yoshimitsu Fukuda ,  Toshiyuki Yamaguchi ,  Kenji Tanaka ,  Chikako Ohisa ,  Takeatsu Ito

IPC: F16H63/50

CPC classification number: F16H63/502 ,  F16H59/70 ,  F16H2059/6807 ,  F16H2306/54

Abstract: An engine control device to be mounted on a vehicle is provided. The control device includes a transmission state determining module for determining a connection between a stepped transmission and an engine, determining that a gear shift has started if the connection is disengaged from a connected state, and determining that the gear shift has finished if the connection is resumed, a gear position estimating module for estimating a gear position when the gear shift is determined to have started, a target engine speed specifying module for specifying a target engine speed based on the estimated gear position, and a speed control module for controlling an engine speed to the target engine speed when the gear shift is determined to have started.

Abstract translation: 提供一种安装在车辆上的发动机控制装置。 控制装置包括：传动状态确定模块，用于确定阶梯式变速器和发动机之间的连接，如果连接脱离连接状态，则确定变速已经开始，并且如果连接是 恢复了当确定换挡已经开始时估计齿轮位置的档位估计模块，用于基于所估计的档位指定目标发动机转速的目标发动机速度指定模块，以及用于控制发动机的速度控制模块 当换档被确定为开始时，速度达到目标发动机转速。

公开(公告)号：US11091150B2

公开(公告)日：2021-08-17

申请号：US16489452

申请日：2018-03-09

Applicant: Mazda Motor Corporation

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

IPC: B60W30/045 ,  B60W10/06 ,  B60W10/10 ,  B60W30/18 ,  B60W30/188 ,  F02D41/12

Abstract: A vehicle control device includes an engine (10), an engine control mechanism that controls an engine torque, and a PCM (50) that performs vehicle posture control for generating vehicle deceleration by controlling the engine control mechanism to reduce the engine torque upon satisfaction of a condition that a vehicle is travelling and a steering angle-related value related to a steering angle of a steering device increases. When a driver performs an accelerator operation for reducing an accelerator opening during execution of vehicle posture control, the PCM (50) suppresses reduction of a generated torque of the engine due to the accelerator operation.

公开(公告)号：US10934956B2

公开(公告)日：2021-03-02

申请号：US16783986

申请日：2020-02-06

Applicant: Mazda Motor Corporation

Inventor： Taiga Kamiji ,  Takuo Hirano ,  Chikako Ohisa ,  Yoshiaki Aritome

IPC: F02D41/14 ,  F02D41/00

Abstract: A method for controlling an internal combustion engine is provided, which includes defining a first area in which the engine operates in a stoichiometric combustion mode and a second area in which the engine operates in a lean combustion mode, on an operation map defined by the engine load and speed, and causing a controller to determine that an operation point on the operation map shifts from the first area to the second area based on signals from an accelerator opening sensor and a crank angle sensor, predict a length of time that the operation point stays in the second area, switch a combustion mode to the lean combustion mode when the predicted time is longer than a given period of time, and maintain the stoichiometric combustion mode when the predicted time is shorter than the given period of time.

公开(公告)号：US10526981B2

公开(公告)日：2020-01-07

申请号：US15338081

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: F02D37/02 ,  F02D41/00 ,  F02P5/145 ,  F02P5/15 ,  F02D41/18

Abstract: An engine control device is provided, that includes an air amount controller, an ignition timing controller, a basic target torque determinator which determines a basic target torque, a change rate acquirer for acquiring a change rate of a steering operation, a target additional deceleration setter for increasing a target additional deceleration while an increase rate thereof becomes less as the change rate increases, a torque reduction amount determinator for determining an engine torque reduction amount, a final target torque determinator for determining a final target torque, and an actual air amount estimator for estimating an actual air amount introduced into a combustion chamber. The air amount controller determines a target air amount and controls the intake air amount to achieve the target air amount. The ignition timing controller retards the ignition timing more as the actual air amount becomes more excessive with respect to the target amount.

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.