公开(公告)号：US10767582B2

公开(公告)日：2020-09-08

申请号：US15901697

申请日：2018-02-21

Applicant: Mazda Motor Corporation

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

IPC: F02D41/00 ,  B60W10/06 ,  B60W10/10 ,  B60W30/18 ,  B60W30/045 ,  F02D37/02 ,  F02D41/02

Abstract: A vehicle control device is provided, which includes an engine, an engine control mechanism configured to control torque generated by the engine, and a processor configured to execute a vehicle attitude controlling module to perform a vehicle attitude control in which the engine control mechanism is controlled 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 preventing module to prevent a combustion frequency of the engine per unit time from falling below a given value while the vehicle attitude controlling module executes the vehicle attitude control.

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.

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.

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.

公开(公告)号：US10266173B2

公开(公告)日：2019-04-23

申请号：US15342857

申请日：2016-11-03

Applicant: MAZDA MOTOR CORPORATION

Inventor： Osamu Sunahara ,  Daisuke Umetsu

IPC: B60W30/045

Abstract: The vehicle behavior control device is designed to control a behavior of a vehicle having steerable front road wheels. The vehicle behavior control device comprises a PCM configured to perform control to reduce a driving force for the vehicle according to a steering speed of the vehicle, wherein the PCM is operable to reduce a change rate during increasing of a reduction amount of the driving force according to the steering speed of the vehicle, to a smaller value, as a steering wheel angle of the vehicle becomes larger.

公开(公告)号：US10246085B2

公开(公告)日：2019-04-02

申请号：US15710459

申请日：2017-09-20

Applicant: MAZDA MOTOR CORPORATION

Inventor： Tomoji Izumi ,  Yasunori Takahara ,  Daisuke Umetsu ,  Osamu Sunahara ,  Masaki Chiba

IPC: B60W30/02 ,  B60W30/045 ,  B62D6/00 ,  B62D15/02 ,  B60K1/00

Abstract: The vehicle behavior control device comprises: a steer-by-wire type steering apparatus (6) having a steering wheel-side mechanism and a road wheel-side mechanism which are mechanically separated from each other; and a controller (8) performs a driving force reduction control of reducing a driving force for a vehicle (1) when a steering speed in the steering apparatus (6) becomes equal to or greater than a given threshold. The steering apparatus (6) comprises a first steering angle sensor (14) provided in the steering wheel-side mechanism and a second steering angle sensor (19) provided in the road wheel-side mechanism. The controller (8) performs the driving force reduction control based on the steering speed in accordance with a sum of an output of the first steering angle sensor (14) and an output of the second steering angle sensor (19).

公开(公告)号：US20180266345A1

公开(公告)日：2018-09-20

申请号：US15901670

申请日：2018-02-21

Applicant: Mazda Motor Corporation

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

IPC: F02D41/00 ,  B62D15/02

CPC classification number: F02D41/0087 ,  B60W30/02 ,  B60W30/18145 ,  B60W2510/0638 ,  B60W2540/18 ,  B60W2710/0666 ,  B60Y2300/1815 ,  B62D15/021 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/021 ,  F02D2200/101 ,  F02D2200/50 ,  F02D2250/18

Abstract: A vehicle control device is provided, which includes an engine, an engine control mechanism configured to control torque generated by the engine, a steering device, and a processor. The processor determines whether a vehicle is traveling and a steering angle related value that is related to a steering angle of the steering device increases, executes a control of the engine control mechanism to reduce the torque when the vehicle is determined to be traveling and the steering angle related value is determined to increase, determines whether a combustion frequency of the engine per unit time is lower than a given value, executes the control for reducing the torque when the combustion frequency is determined to be higher than the given value, and prevents the execution of the control for reducing the torque when the combustion frequency is determined to be lower than the given value.

公开(公告)号：US20180265118A1

公开(公告)日：2018-09-20

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: B62D5/04 ,  G05D1/08 ,  B60W10/06 ,  B60W30/18

CPC classification number: B62D5/0463 ,  B60W10/06 ,  B60W30/18 ,  B60W2510/0661 ,  G05D1/08

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.

公开(公告)号：US09744967B2

公开(公告)日：2017-08-29

申请号：US15342820

申请日：2016-11-03

Applicant: MAZDA MOTOR CORPORATION

Inventor： Daisuke Umetsu ,  Osamu Sunahara

IPC: B60W30/045 ,  B60W10/04

CPC classification number: B60W30/045 ,  B60W10/04 ,  B60W10/06 ,  B60W30/02 ,  B60W30/18145 ,  B60W2510/182 ,  B60W2510/202 ,  B60W2520/10 ,  B60W2520/12 ,  B60W2520/125 ,  B60W2520/14 ,  B60W2520/26 ,  B60W2540/10 ,  B60W2540/18 ,  B60W2710/0605 ,  B60W2710/0666 ,  B60W2720/106 ,  B60W2720/125 ,  B60W2720/14 ,  B60W2720/20

Abstract: The vehicle behavior control device comprises a PCM configured to decide a target additional deceleration. The PCM is operable: to correct the target additional deceleration in such a manner that it is reduced by multiplying the target additional deceleration by a coefficient K1 set according to a vehicle speed, a coefficient K2 set according to a steering wheel angle, a coefficient K3 set according to an accelerator position and a coefficient K4 decided according to a required deceleration; when a value derived by multiplying the target additional deceleration by K1 and K2 is less than a threshold DT, to stop a torque reduction control; and, when the value derived by multiplying the target additional deceleration by K1 and K2 is equal to or greater than DT, and a value derived by multiplying the target additional deceleration by K3 and K4 is less than DT, to maintain the torque reduction control.