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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
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.
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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
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.
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Patent Agency Ranking
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
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.
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公开(公告)号：US10082124B2
公开(公告)日：2018-09-25
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
CPC classification number: F02P5/1504 , B60W30/045 , F01N3/10 , F02D41/0005 , F02D41/0007 , F02D2200/50 , F02P5/045 , F02P5/1521 , Y02A50/2322 , Y02T10/46
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.
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公开(公告)号：US20180265119A1
公开(公告)日：2018-09-20
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
CPC classification number: B62D5/0463 , B60L15/2072 , B60L2240/12 , B60L2240/14 , B60L2240/22 , B60L2240/423 , B60L2240/461 , B60L2240/463 , B60L2250/26 , B60L2260/26 , B60W10/06 , B60W2510/0661 , G05D1/08
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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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
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.
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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
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.
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