Patents by Inventor Takao Kawasaki
Takao Kawasaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 12103388Abstract: An on-vehicle interface apparatus includes a touch screen and an I/F controller. The I/F controller stores a first message and a second message having a lower urgency level in association with respective events. The I/F controller displays operation switches including operation switches regarding traveling of a vehicle irrespectively of the events on the touch screen, and, in response to occurrence of an event, displays a corresponding message on the touch screen. The I/F controller, in response to detection of a touch operation on a display region of the first message during display of the first message, outputs to the vehicle controller a signal that instructs execution of the driving control corresponding to the first message.Type: GrantFiled: August 2, 2021Date of Patent: October 1, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuchi Yamanouchi, Hideto Tanaka, Masaharu Kinoshita, Daisuke Naitou, Kei Kawasaki, Takuto Munekata, Takao Shinohara
-
Patent number: 11828244Abstract: A fuel injection control method for an internal combustion engine is provided. The internal combustion engine includes a fuel pump (38) that pressure-feeds fuel, a fuel injection valve (19) that injects the fuel pressure-fed by the fuel pump directly into a cylinder of the internal combustion engine (1), and a fuel pressure detection device (45) that detects a pressure of the fuel pressure-fed by the fuel pump.Type: GrantFiled: April 28, 2020Date of Patent: November 28, 2023Assignee: NISSAN MOTOR CO., LTD.Inventors: Toshiyuki Kokubu, Kazuyuki Hara, Takao Kawasaki
-
Publication number: 20230167781Abstract: A fuel injection control method for an internal combustion engine is provided. The internal combustion engine includes a fuel pump (38) that pressure-feeds fuel, a fuel injection valve (19) that injects the fuel pressure-fed by the fuel pump directly into a cylinder of the internal combustion engine (1), and a fuel pressure detection device (45) that detects a pressure of the fuel pressure-fed by the fuel pump.Type: ApplicationFiled: April 28, 2020Publication date: June 1, 2023Applicant: NISSAN MOTOR CO., LTD.Inventors: Toshiyuki KOKUBU, Kazuyuki HARA, Takao KAWASAKI
-
Patent number: 10731585Abstract: A control device of an internal combustion engine calculates an abnormal combustion prevention torque for preventing an abnormal combustion due to self-ignition whose heat source is a mixture of supplied fuel to the internal combustion engine and lubricant oil, on the basis of a cylinder wall temperature of the internal combustion engine or a temperature of a parameter in correlation with the cylinder wall temperature, and controls a torque of the internal combustion engine to prevent the torque of the internal combustion engine from becoming equal to or more than the abnormal combustion prevention torque.Type: GrantFiled: February 26, 2014Date of Patent: August 4, 2020Assignee: NISSAN MOTOR CO., LTD.Inventors: Kentarou Yamano, Takao Kawasaki
-
Patent number: 10434842Abstract: An in-vehicle inverter device includes a noise reduction circuit, which has a common mode choke coil configured to reduce common mode noise and normal mode noise contained in DC power, and an inverter circuit, which receives the DC power in which the noise has been reduced. The noise reduction circuit includes: an input-side capacitor and an input-side resistor provided on the input side of the choke coil; an output-side capacitor and an output-side resistor provided on the output side of the choke coil; a first filter circuit that includes the choke coil, the input-side capacitor, and the input-side resistor; and a second filter circuit that includes the choke coil, the output-side capacitor, and the output-side resistor. The first and the second filter circuits reduce leakage noise generated in the inverter circuit.Type: GrantFiled: March 24, 2017Date of Patent: October 8, 2019Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takao Kawasaki, Yoshiki Nagata, Fumihiro Kagawa, Shunsuke Ambo, Koki Suzuki
-
Patent number: 10024312Abstract: An inverter includes a bus bar as a wiring and a ferrite core that covers the bus bar to absorb electromagnetic noise from the bus bar. The bus bar and ferrite core are integrated by mold forming using a resin material in a state of exposing a part of the ferrite core.Type: GrantFiled: November 12, 2015Date of Patent: July 17, 2018Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoshi Okada, Shinya Sato, Takao Kawasaki, Tetsuya Yamada, Kenji Maemura
-
Patent number: 10020707Abstract: A motor-driven compressor includes a housing, a compression portion, and an electric motor, a drive circuit, a circuit housing, a control circuit, a communication lead, and a metal shielding member. The compression portion and the electric motor are received in the housing. The circuit housing is arranged outside the housing and defines an accommodation chamber that receives the drive circuit. The control circuit is configured to control the electric motor by controlling the drive circuit. The communication lead is connected to the control circuit and drawn from the inside to the outside of the accommodation chamber. The metal shielding member is arranged in the accommodation chamber and covers the communication lead. The circuit housing includes a metal shielding portion, which is electrically grounded. The shielding member is electrically connected to the shielding portion.Type: GrantFiled: February 22, 2016Date of Patent: July 10, 2018Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Koki Suzuki, Fumihiro Kagawa, Takao Kawasaki
-
Publication number: 20170274735Abstract: An in-vehicle inverter device includes a noise reduction circuit, which has a common mode choke coil configured to reduce common mode noise and normal mode noise contained in DC power, and an inverter circuit, which receives the DC power in which the noise has been reduced. The noise reduction circuit includes: an input-side capacitor and an input-side resistor provided on the input side of the choke coil; an output-side capacitor and an output-side resistor provided on the output side of the choke coil; a first filter circuit that includes the choke coil, the input-side capacitor, and the input-side resistor; and a second filter circuit that includes the choke coil, the output-side capacitor, and the output-side resistor. The first and the second filter circuits reduce leakage noise generated in the inverter circuit.Type: ApplicationFiled: March 24, 2017Publication date: September 28, 2017Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takao KAWASAKI, Yoshiki NAGATA, Fumihiro KAGAWA, Shunsuke AMBO, Koki SUZUKI
-
Publication number: 20170009687Abstract: A control device of an internal combustion engine calculates an abnormal combustion prevention torque for preventing an abnormal combustion due to self-ignition whose heat source is a mixture of supplied fuel to the internal combustion engine and lubricant oil, on the basis of a cylinder wall temperature of the internal combustion engine or a temperature of a parameter in correlation with the cylinder wall temperature, and controls a torque of the internal combustion engine to prevent the torque of the internal combustion engine from becoming equal to or more than the abnormal combustion prevention torque.Type: ApplicationFiled: February 26, 2014Publication date: January 12, 2017Inventors: Kentarou YAMANO, Takao KAWASAKI
-
Publication number: 20160254723Abstract: A motor-driven compressor includes a housing, a compression portion, and an electric motor, a drive circuit, a circuit housing, a control circuit, a communication lead, and a metal shielding member. The compression portion and the electric motor are received in the housing. The circuit housing is arranged outside the housing and defines an accommodation chamber that receives the drive circuit. The control circuit is configured to control the electric motor by controlling the drive circuit. The communication lead is connected to the control circuit and drawn from the inside to the outside of the accommodation chamber. The metal shielding member is arranged in the accommodation chamber and covers the communication lead. The circuit housing includes a metal shielding portion, which is electrically grounded. The shielding member is electrically connected to the shielding portion.Type: ApplicationFiled: February 22, 2016Publication date: September 1, 2016Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Koki SUZUKI, Fumihiro KAGAWA, Takao KAWASAKI
-
Publication number: 20160245292Abstract: A motor-driven compressor includes a compression mechanism, an electric motor, a housing, a drive circuit unit, a cover body, and a shield. The compression mechanism has a compression chamber and compresses refrigerant. The electric motor drives the compression mechanism. The housing accommodates the compression mechanism and the electric motor. The drive circuit unit drives the electric motor. The drive circuit unit includes a multi-layer board and electronic components mounted on the multi-layer board. The multi-layer board includes a ground layer. The cover body covers the drive circuit unit. The cover body is arranged at an outer side of the housing. The shield encompasses at least some of the electronic components. The shield is electrically connected to the ground layer of the multi-layer board.Type: ApplicationFiled: February 17, 2016Publication date: August 25, 2016Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takao KAWASAKI, Fumihiro KAGAWA, Shinya SATO, Koki SUZUKI
-
Publication number: 20160141953Abstract: An inverter includes a bus bar as a wiring and a ferrite core that covers the bus bar to absorb electromagnetic noise from the bus bar. The bus bar and ferrite core are integrated by mold forming using a resin material in a state of exposing a part of the ferrite core.Type: ApplicationFiled: November 12, 2015Publication date: May 19, 2016Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoshi OKADA, Shinya SATO, Takao KAWASAKI, Tetsuya YAMADA, Kenji MAEMURA
-
Patent number: 9309858Abstract: In an internal combustion engine control device, a predetermined margin torque is set such that it is possible to maintain a predetermined engine idling speed by adjusting ignition timing with respect to load fluctuations during idling operation. The margin torque is set to decrease, as a load, acting on the internal combustion engine during idling operation, increases. Accordingly, the margin torque can be set to an appropriate value, and thus it is possible to improve a fuel economy performance during idling operation of the internal combustion engine.Type: GrantFiled: January 23, 2013Date of Patent: April 12, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Kentaro Yamano, Yuji Sasaki, Takao Kawasaki
-
Publication number: 20140360464Abstract: In an internal combustion engine control device, a predetermined margin torque is set such that it is possible to maintain a predetermined engine idling speed by adjusting ignition timing with respect to load fluctuations during idling operation. The margin torque is set to decrease, as a load, acting on the internal combustion engine during idling operation, increases. Accordingly, the margin torque can be set to an appropriate value, and thus it is possible to improve a fuel economy performance during idling operation of the internal combustion engine.Type: ApplicationFiled: January 23, 2013Publication date: December 11, 2014Inventors: Kentaro Yamano, Yuji Sasaki, Takao Kawasaki
-
Patent number: 8316827Abstract: An engine intake air quantity control apparatus is provided with a throttle valve, a supercharger, a variable intake valve operating device and an intake air control device. The throttle valve varies an intake air flow passage area of an intake passage. The supercharger supercharges intake air. The variable intake valve operating device changes an intake valve timing of an intake valve in accordance with an engine operating state. The intake air control device increases an opening degree of the throttle valve in accordance with a detected increase of an accelerator pedal depression amount, and increases an intake air quantity by starting to supercharge the intake air with the supercharger upon a prescribed throttle valve opening degree having been reached. The intake air control device changes the prescribed throttle valve opening degree in accordance with the intake valve timing of the intake valve.Type: GrantFiled: December 1, 2009Date of Patent: November 27, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Takeshi Miyamoto, Takashi Nakazawa, Takao Kawasaki
-
Publication number: 20100154757Abstract: An engine intake air quantity control apparatus is provided with a throttle valve, a supercharger, a variable intake valve operating device and an intake air control device. The throttle valve varies an intake air flow passage area of an intake passage. The supercharger supercharges intake air. The variable intake valve operating device changes an intake valve timing of an intake valve in accordance with an engine operating state. The intake air control device increases an opening degree of the throttle valve in accordance with a detected increase of an accelerator pedal depression amount, and increases an intake air quantity by starting to supercharge the intake air with the supercharger upon a prescribed throttle valve opening degree having been reached. The intake air control device changes the prescribed throttle valve opening degree in accordance with the intake valve timing of the intake valve.Type: ApplicationFiled: December 1, 2009Publication date: June 24, 2010Applicant: NISSAN MOTOR CO., LTD.Inventors: Takeshi MIYAMOTO, Takashi NAKAZAWA, Takao KAWASAKI
-
Publication number: 20080262054Abstract: [OBJECT] To provide a pharmaceutical composition containing a thiazolidinedione compound and having superior solubility. [MEANS FOR SOLUTION] A pharmaceutical composition incorporating cellulose, a cellulose derivative, a polyvinyl alcohol derivative, a polyvinyl alcohol derivative mixture or a mixture thereof with 5-{4-[(6-methoxy-1-methyl-1H-benzimidazol-2-yl)methoxy]benzyl}thiazolidine-2,4-dione, or a pharmacologically acceptable salt thereof.Type: ApplicationFiled: July 7, 2006Publication date: October 23, 2008Inventors: Takao Kawasaki, Nobuyuki Suzuki, Shuichi Yada
-
Patent number: 6827051Abstract: A quantity of internal EGR gases remaining in an engine is estimated in accordance with an exhaust valve closing timing, an intake valve opening timing and an engine speed. The estimated internal EGR quantity is a sum of a base quantity and an increase correction quantity determined in accordance with a valve overlap period, its middle angular position in crankshaft rotation and intake pressure. The estimated internal EGR quantity is used for estimating an engine cylinder intake air quantity and for engine control such as ignition timing control, and intake air quantity control.Type: GrantFiled: July 26, 2001Date of Patent: December 7, 2004Assignee: Nissan Motor Co., Ltd.Inventors: Takao Kawasaki, Masahiro Arai
-
Patent number: 6705293Abstract: A control system for a multi-cylinder internal combustion engine is provided. The engine is of the kind in which switching between a full cylinder operation with all cylinders in operation and a part cylinder operation with some of cylinders kept out of operation is selectively performed. The control system comprises a first calculator for calculating, at the part cylinder operation, a target intake air fuel quantity per one operative cylinder that enables the engine to produce a torque equal to that at the full cylinder operation, a second calculator for calculating a throttle valve target opening area at the part cylinder operation from the target intake air quantity per one operative cylinder, and a controller for controlling a throttle valve opening degree so that the throttle valve target opening area is obtained. A control method is also provided.Type: GrantFiled: March 5, 2002Date of Patent: March 16, 2004Assignee: Nissan Motor Co., Ltd.Inventor: Takao Kawasaki
-
Patent number: 6513490Abstract: A system and method for unthrottled intake air control for an internal combustion engine. The engine has at least one combustion chamber provided with electromagnetic intake means. The opening and closing times of the intake means are adjustable entirely independently from the crankshaft position to control intake air supplied to the combustion chamber. A control unit is used to implement instructions for determining a first portion of requested intake airflow, which first portion requests a first engine response performance, and instructions for determining a second portion of requested intake airflow, which second portion requests a second engine response performance.Type: GrantFiled: December 4, 2000Date of Patent: February 4, 2003Assignee: Nissan Motor Co., Ltd.Inventors: Takao Kawasaki, Masahiro Arai, Hatsuo Nagaishi