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Patent Agency Ranking
公开(公告)号：US20200377093A1
公开(公告)日：2020-12-03
申请号：US16825777
申请日：2020-03-20
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yuichiro AKIYA , Chikako OHISA , Keitaro EZUMI , Akira TSUDA , Daisaku OGAWA , Daisuke UMETSU
Abstract: A vehicle system comprises an engine, a motor-generator and a controller. The engine has a combustion mode in which a part of an air-fuel mixture is combusted by spark ignition, and then the remaining air-fuel mixture is combusted by self-ignition. The controller sets a target additional deceleration based on a steering angle, when a steering wheel is turned, and sets an air-fuel ratio of the air-fuel mixture to either one of a first air-fuel ratio and a second air-fuel ratio which is on a lean side, based on an operating state, when the engine performs the combustion mode. The controller controls an ignition timing so as to generate the target additional deceleration in the first air-fuel ratio, and controls a regenerative electric power generation of the motor-generator so as to generate the target additional deceleration in the second air-fuel ratio.
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公开(公告)号：US20220242378A1
公开(公告)日：2022-08-04
申请号：US17582048
申请日：2022-01-24
Applicant: Mazda Motor Corporation
Inventor： Akira HASHIZAKA , Masahiro NAGOSHI , Norihira WAKAYAMA , Shinichi KAIHARA , Masakazu TAKADA , Kentaro WATANABE , Yuji NAKANO , Hirotaka MOCHIZUKI , Akira TSUDA , Naoki TSUKAMOTO
IPC: B60T8/1755 , B60T8/172 , B60L7/26
Abstract: A braking control system includes control circuitry configured to control first and second brakes in a vehicle. The control circuitry is configured to calculate a target braking force in accordance with the operation amount of a brake pedal by a driver, determine a first braking force and a second braking force based on the target braking force, and control each of the first and second brakes such that each of the determined braking forces is generated in the vehicle. The first and second braking forces are determined such that a sum of the first and second braking forces becomes the target braking force and a pitch behavior specified by a preset pitch behavior model occurs in the vehicle.
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公开(公告)号：US20170045001A1
公开(公告)日：2017-02-16
申请号：US15304808
申请日：2015-04-20
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yukio HAIZAKI , Masayoshi HIGASHIO , Kensuke ASHIKAGA , Akira TSUDA
CPC classification number: F02D13/06 , F02D13/02 , F02D13/04 , F02D17/02 , F02D31/001 , F02D41/0002 , F02D41/0087 , F02D41/022 , F02D41/3005 , F02D2041/0012 , Y02T10/18
Abstract: Provided are a valve stop mechanism capable of switching intake valves and exhaust valves of deactivated cylinders between an openable/closable state and a closed state, and an engine speed control unit which controls the engine speed. The engine speed control unit controls the engine speed in such a manner that the amount of change in the engine speed with respect to time is reduced, as compared with a case in which a specific condition is not satisfied, when the specific condition that switching by the valve stop mechanism is not completed, and that connection between an engine and a power transmission unit is released is satisfied after issuance of a switching request from one of a reduced-cylinder operation and an all-cylinder operation to the other thereof.
Abstract translation: 提供一种能够在可打开/关闭状态和关闭状态之间切换取消汽缸的进气门和排气门的阀停止机构，以及控制发动机转速的发动机转速控制单元。 发动机速度控制单元控制发动机转速，使得与特定条件不满足的情况相比，发动机转速相对于时间的变化量减小，当切换为特定条件时 在从减缸操作和全缸操作之一发出切换请求之后，满足发动机和动力传递单元之间的连接被释放的阀停止机构。
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公开(公告)号：US20210199059A1
公开(公告)日：2021-07-01
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
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.
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公开(公告)号：US20150377151A1
公开(公告)日：2015-12-31
申请号：US14769304
申请日：2014-03-10
Applicant: MAZDA MOTOR CORPORATION
Inventor： Masanori HASHIMOTO , Hisashi OKAZAWA , Toshiaki NISHIMOTO , Akira TSUDA
CPC classification number: F02D13/0215 , F01L13/0005 , F01L2013/001 , F01L2013/0084 , F01M1/08 , F01M1/16 , F02D13/02 , F02D13/06 , F02D17/02 , Y02T10/18
Abstract: The invention relates to a control device for a multi-cylinder engine provided with an oil pump, a hydraulically operated valve characteristic control device which changes valve characteristics of at least one of an intake valve and an exhaust valve; and a hydraulically operated valve stop device which stops at least one of the intake valve and the exhaust valve when a reduced cylinder operation is performed. The control device for a multi-cylinder engine is provided with a valve control unit which operates the valve stop device after an operation of the valve characteristic control device is completed when the valve characteristic control device is operated at a time of request for the reduced cylinder operation.
Abstract translation: 本发明涉及一种具有油泵的多气缸发动机的控制装置，一种改变进气门和排气门中的至少一个的阀特性的液压操作阀特性控制装置; 以及液压操作的阀停止装置，当进行减缸操作时，停止至少一个进气门和排气门。 用于多气缸发动机的控制装置设置有阀控制单元，该阀控制单元在阀特性控制装置的操作完成之后操作阀停止装置，当阀特征控制装置在减速缸请求时被操作时 操作。
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