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公开(公告)号:US10087874B2
公开(公告)日:2018-10-02
申请号:US15534909
申请日:2014-12-09
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Ryo Uchida , Futoshi Yoshimura , Tomoyoshi Date , Rina Kamio
Abstract: A control device for an internal combustion engine has a controller configured to control a fuel injection valve arranged to directly inject a fuel into a combustion chamber, and a variable compression ratio mechanism arranged to vary an upper dead center position of a piston, and thereby to vary a compression ratio of the internal combustion engine. The controller is configured to control a fuel cut by which the fuel injection from the fuel injection valve is stopped, when a predetermined fuel cut condition is satisfied during a traveling of a vehicle. The fuel injection from the fuel injection valve is restarted when a predetermined fuel cut recovery condition is satisfied during the fuel cut.
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公开(公告)号:US20170342925A1
公开(公告)日:2017-11-30
申请号:US15532614
申请日:2014-12-02
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Futoshi Yoshimura , Ryo Uchida , Tomoyoshi Date , Rina Kamio
CPC classification number: F02D41/126 , F02D29/02 , F02D35/025 , F02D41/0295 , F02D41/047 , F02D41/3836 , F02D41/40 , F02D2041/389 , F02D2200/0602
Abstract: A control device for an internal combustion engine of a vehicle has a controller that controls a fuel injection valve of the internal combustion engine arranged to directly inject a fuel into a combustion chamber, and a pressure regulator of the internal combustion engine arranged to vary a pressure of the fuel supplied to the fuel injection valve. The controller performs a fuel cut that stops the fuel injection of the fuel injection valve when a predetermined fuel cut condition is satisfied during a traveling of the vehicle. The controller restarts the fuel injection of the fuel injection valve when a predetermined fuel cut recovery condition is satisfied during the fuel cut.
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公开(公告)号:US11300065B2
公开(公告)日:2022-04-12
申请号:US17050541
申请日:2018-04-27
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Tomohiro Sakata , Futoshi Yoshimura , Yoshihiko Iwabuchi
Abstract: A control unit (8) calculates a temperature difference (ΔTg). The temperature difference (ΔTg) is a value obtained by subtracting the temperature (Tg) of a GPF (22) from a target GPF temperature (Tgt). If the temperature difference (ΔTg) is less than or equal to zero, the control unit (8) implements a fuel economy-oriented conventional control. If the temperature difference (ΔTg) is greater than zero, the control unit (8) implements a filter temperature-increasing control. The filter temperature-increasing control causes the exhaust temperature to be increased so that the temperature (Tg) of the GPF (22) becomes greater than or equal to the target GPF temperature (Tgt).
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公开(公告)号:US11085393B2
公开(公告)日:2021-08-10
申请号:US16614923
申请日:2017-05-24
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Futoshi Yoshimura , Yoshihiko Iwabuchi
Abstract: A control method for internal combustion engine with a fuel injection valve configured to directly inject fuel into a cylinder and an ignition plug configured to directly spark-ignite the fuel injected from the fuel injection valve includes comparing an actual behavior, which is an actual changing behavior of an engine revolution speed at an engine start, to a reference behavior set in advance, and switching from stratified combustion in which a fuel spray injected from the fuel injection valve and staying around the ignition plug is directly spark-ignited to homogeneous combustion in which a homogeneous air-fuel mixture is formed in a combustion chamber and the fuel is burned and increasing a mechanical compression ratio of the internal combustion engine as compared to the case where the actual behavior and the reference behavior match if the actual behavior is different from the reference behavior.
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公开(公告)号:US20170328296A1
公开(公告)日:2017-11-16
申请号:US15531221
申请日:2014-11-27
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Rina Kamio , Tomoyoshi Date , Daisuke Tanaka , Futoshi Yoshimura , Ryo Uchida
CPC classification number: F02D41/3094 , F02D35/025 , F02D41/047 , F02D41/126 , F02D2200/021 , F02D2250/38
Abstract: A control device for an internal combustion engine including an in-cylinder injection fuel injection valve, and a port injection fuel injection valve, has a controller that controls injection amount ratios of the in-cylinder injection fuel injection valve and the port injection fuel injection valve in accordance with a driving condition of the engine. A fuel cut is performed at a predetermined deceleration of the internal combustion engine. The injection amount ratio of the in-cylinder injection fuel injection valve is corrected to be decreased at a fuel cut recovery at which a fuel supply is restarted from the fuel cut state, during a predetermined period from the start of the recovery.
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公开(公告)号:US10436144B2
公开(公告)日:2019-10-08
申请号:US15531221
申请日:2014-11-27
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Rina Kamio , Tomoyoshi Date , Daisuke Tanaka , Futoshi Yoshimura , Ryo Uchida
Abstract: A control device for an internal combustion engine including an in-cylinder injection fuel injection valve, and a port injection fuel injection valve, has a controller that controls injection amount ratios of the in-cylinder injection fuel injection valve and the port injection fuel injection valve in accordance with a driving condition of the engine. A fuel cut is performed at a predetermined deceleration of the internal combustion engine. The injection amount ratio of the in-cylinder injection fuel injection valve is corrected to be decreased at a fuel cut recovery at which a fuel supply is restarted from the fuel cut state, during a predetermined period from the start of the recovery.
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公开(公告)号:US09885304B2
公开(公告)日:2018-02-06
申请号:US15519902
申请日:2014-12-02
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Tomoyoshi Date , Futoshi Yoshimura , Ryo Uchida , Rina Kamio
CPC classification number: F02D41/126 , F02D29/02 , F02D35/026 , F02D41/02 , F02D41/025 , F02D41/0295 , F02D41/04 , F02D41/047 , F02D41/12 , F02D41/38 , F02D43/00 , F02D45/00 , F02D2041/389 , F02D2200/021 , F02P5/145 , F02P5/15 , F02P5/1504 , Y02T10/26
Abstract: A vehicle control system for an internal combustion engine having a fuel injection valve for injecting fuel directly into a combustion chamber includes a controller configured to perform a fuel cut-off when a predetermined fuel cut-off condition is met during travel of the vehicle to thereby stop fuel injection from the fuel injection valve. The controller is configured to resume the fuel injection from the fuel injection valve when a predetermined fuel cut-off recovery condition is met during the fuel cut-off. The controller is configured, upon elapse of a predetermined time that is required for a wall temperature of the combustion chamber to rise after resuming the fuel injection from the fuel injection valve, to perform a rich spike that temporarily increases the fuel injection amount from the fuel injection valve.
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公开(公告)号:US20170350342A1
公开(公告)日:2017-12-07
申请号:US15534909
申请日:2014-12-09
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Ryo Uchida , Futoshi Yoshimura , Tomoyoshi Date , Rina Kamio
CPC classification number: F02D41/40 , F02B75/045 , F02D15/02 , F02D29/02 , F02D35/025 , F02D41/0295 , F02D41/047 , F02D41/126
Abstract: A control device for an internal combustion engine has a controller configured to control a fuel injection valve arranged to directly inject a fuel into a combustion chamber, and a variable compression ratio mechanism arranged to vary an upper dead center position of a piston, and thereby to vary a compression ratio of the internal combustion engine. The controller is configured to control a fuel cut by which the fuel injection from the fuel injection valve is stopped, when a predetermined fuel cut condition is satisfied during a traveling of a vehicle. The fuel injection from the fuel injection valve is restarted when a predetermined fuel cut recovery condition is satisfied during the fuel cut.
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公开(公告)号:US20170350337A1
公开(公告)日:2017-12-07
申请号:US15519902
申请日:2014-12-02
Applicant: NISSAN MOTOR CO., LTD.
Inventor: Tomoyoshi Date , Futoshi Yoshimura , Ryo Uchida , Rina Kamio
CPC classification number: F02D41/126 , F02D29/02 , F02D35/026 , F02D41/02 , F02D41/025 , F02D41/0295 , F02D41/04 , F02D41/047 , F02D41/12 , F02D41/38 , F02D43/00 , F02D45/00 , F02D2041/389 , F02D2200/021 , F02P5/145 , F02P5/15 , F02P5/1504 , Y02T10/26
Abstract: A vehicle control system for an internal combustion engine having a fuel injection valve for injecting fuel directly into a combustion chamber includes a controller configured to perform a fuel cut-off when a predetermined fuel cut-off condition is met during travel of the vehicle to thereby stop fuel injection from the fuel injection valve. The controller is configured to resume the fuel injection from the fuel injection valve when a predetermined fuel cut-off recovery condition is met during the fuel cut-off. The controller is configured, upon elapse of a predetermined time that is required for a wall temperature of the combustion chamber to rise after resuming the fuel injection from the fuel injection valve, to perform a rich spike that temporarily increases the fuel injection amount from the fuel injection valve.
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