公开(公告)号：US09702286B2

公开(公告)日：2017-07-11

申请号：US14924066

申请日：2015-10-27

Applicant: MAZDA MOTOR CORPORATION

Inventor： Masahiro Nagoshi ,  Masayuki Tetsuno ,  Yoshio Mizuta ,  Kohei Fujii ,  Hiroshi Yamada ,  Koichiro Harada ,  Yoshiyuki Sato ,  Akihide Takami

IPC: B01D53/92 ,  B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  F01N13/00

CPC classification number: F01N3/0821 ,  B01D53/9409 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/908 ,  B01D2255/912 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/0097 ,  F01N2510/0684 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/24

Abstract: Provided is a system where a composite catalyst into which an LNT catalyst and an oxidation catalyst are combined, a catalyzed particulate filter, an injector configured to inject a urea water solution into an exhaust gas passage, and an SCR catalyst are arranged in this order in an upstream-to-downstream direction of the flow of the exhaust gas.

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：US11313312B2

公开(公告)日：2022-04-26

申请号：US16963122

申请日：2019-01-16

Applicant: MAZDA MOTOR CORPORATION

Inventor： Shinji Takayama ,  Takeatsu Ito ,  Masahiro Nagoshi ,  Yuichiro Akiya ,  Yuto Matsushima ,  Kenko Ujihara ,  Daisaku Ogawa ,  Daisuke Umetsu

IPC: F02D37/02 ,  F02D41/30 ,  F02D41/40 ,  F02D41/00

Abstract: A control unit performs a vehicle attitude control to reduce a torque generated by an engine when an increase in a steering angle exceeds a standard increase, and a spark ignition controlled compression ignition combustion in a predetermined operating range. In the spark ignition controlled compression ignition combustion, switching of an air-fuel ratio mode is performed between a first air-fuel ratio mode (λ>1) is formed and a second air-fuel ratio mode (in which a mixed gas of λ≤1) is formed. If the switching of the air-fuel ratio mode is requested without the vehicle attitude control, the control unit allows performing the requested switching of the air-fuel ratio mode. In contrast, if the mode switching is requested in a state where the vehicle attitude control is requested, the control unit disallows switching of the air-fuel ratio mode even when the switching of the air-fuel ratio mode is requested.

公开(公告)号：US11242817B2

公开(公告)日：2022-02-08

申请号：US16962482

申请日：2019-01-16

Applicant: MAZDA MOTOR CORPORATION

Inventor： Shinji Takayama ,  Takeatsu Ito ,  Masahiro Nagoshi ,  Yuichiro Akiya ,  Yuto Matsushima ,  Kenko Ujihara ,  Daisaku Ogawa ,  Daisuke Umetsu

IPC: F02D37/02 ,  F02D41/30 ,  F02B1/12 ,  F02D41/00 ,  F02D41/38

Abstract: An engine control method includes a step of setting combustion mode in which a first combustion mode in which a mixed gas is combusted by propagating flame or a second combustion mode in which the mixed gas is combusted by self-ignition is selected, a step of setting air-fuel ratio mode in which a lean first air-fuel ratio mode or a second air-fuel ratio mode equal to or richer than a theoretical air-fuel ratio is selected, a step of setting torque reduction in which a torque reduction amount by which a torque generated by an engine is reduced based on a steer angle of a steering wheel, and a suppressing step in which reducing the torque generated by the engine based on the torque reduction amount set in the step of setting torque reduction is suppressed.