-
公开(公告)号：US20230311842A1
公开(公告)日：2023-10-05
申请号：US18190010
申请日：2023-03-24
Applicant: Mazda Motor Corporation
Inventor： Makoto Yamada , Tooru Uematsu , Atsushi Yamasaki
IPC: B60W10/11 , B60W10/188 , B60K6/48 , B60W30/18 , B60K6/547 , B60W40/114
CPC classification number: B60W10/11 , B60W10/188 , B60K6/48 , B60W30/18127 , B60K6/547 , B60W40/114 , B60W2540/18 , B60K2006/4825 , B60W2520/10 , B60W2510/207
Abstract: A vehicle gear-shifting control apparatus is equipped with an engine, a motor, an automatic transmission, a friction brake system, and a controller which executes, during deceleration during which the friction brake system is distributing a braking force to front and rear wheels, a regeneration control of imparting a regenerative braking torque to the rear wheels and a gear-shifting control of changing a shift stage of the automatic transmission by outputting a gear-shifting signal in accordance with the rotation speed of an input shaft to the transmission. When the controller determines an oversteered state of the vehicle during the regeneration control, the controller increases an input torque of the input shaft so that the regenerative braking torque decreases while maintaining the regeneration operation of the motor and, at the same time, interrupts motive power transmission between the input shaft and an output shaft of the transmission.
-
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
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：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
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：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
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
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.
-
Patent Agency Ranking
公开(公告)号：US20230311883A1
公开(公告)日：2023-10-05
申请号：US18190543
申请日：2023-03-27
Applicant: Mazda Motor Corporation
Inventor： Makoto Yamada , Tooru Uematsu , Atsushi Yamasaki , Taiki Kado , Keita Ejiri , Kiminori Higo
IPC: B60W30/18 , B60W10/08 , B60W10/11 , B60W10/188
CPC classification number: B60W30/18127 , B60W10/08 , B60W10/11 , B60W10/188 , B60W30/18145 , B60W2520/14 , B60W2540/12
Abstract: A vehicle gear-shifting control apparatus is equipped with an engine, a motor, an automatic transmission, a friction brake system, and a controller which executes a regeneration control of imparting a regenerative braking torque to rear wheels by causing the motor to perform a regeneration operation and a gear-shifting control of changing a shift stage of the automatic transmission by outputting a gear-shifting signal in accordance with the rotation speed of an input shaft. The controller starts the gear-shifting control, triggered by the rotation speed decreasing to a predetermined downshift point during a downshift of the shift stage, and during deceleration of the vehicle when a coefficient of friction of a road surface is lower than a predetermined threshold in the regeneration control, the controller sets the downshift point lower than when the coefficient of friction is equal to or higher than the threshold.
-
公开(公告)号：US11143118B2
公开(公告)日：2021-10-12
申请号：US17058284
申请日：2019-05-20
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yuichiro Yamane , Akira Tsuda , Yuki Ishiyama , Takefumi Takada , Yuto Sakasegawa , Kazuki Kawamoto , Jumpei Takeda , Hiroyuki Morioka , Shin Kato , Masahiro Nagoshi , Atsushi Yamasaki
IPC: F02D11/10 , B60W30/188 , B60W30/20 , F02D41/10 , F02D29/02
Abstract: To provide a control device for a vehicle capable of controlling the torque of a drive source so as to appropriately balance the suppression of body vibrations and the securing of a transient response during acceleration or deceleration. This control device for a vehicle includes an accelerator position sensor that detects the accelerator opening, a torque adjustment mechanism such as a throttle valve that adjusts the torque of an engine as the drive source of the vehicle, and a powertrain control module (PCM) that controls the torque adjustment mechanism based on the accelerator opening. The PCM sets the target acceleration of the vehicle based on the accelerator opening, sets the target torsion angle of the drive shaft based on the target acceleration, sets the target torque of the engine based on the target torsion, and controls the torque adjustment mechanism based on the target torque.
-
公开(公告)号：US10408146B2
公开(公告)日：2019-09-10
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
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：US20180266346A1
公开(公告)日：2018-09-20
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
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：US09970544B2
公开(公告)日：2018-05-15
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
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.
-
-
-
-
-
-
-
-
-
Search Results
26
records
(took 0.02 seconds)
