Patents by Inventor Kenichi Jino
Kenichi Jino 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).
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Patent number: 11869287Abstract: An abnormality detection device determines abnormality in an exhaust gas sensor, disposed in an exhaust passage of an engine to detect a component in exhaust gas. The abnormality detection device includes: a responsiveness determination unit configured to calculate responsiveness of the exhaust gas sensor on the basis of a timewise change of output values of the exhaust gas sensor; and an abnormality determination unit configured to determine that the exhaust gas sensor has abnormality when the responsiveness calculated by the responsiveness determination unit is lower than a predetermined responsiveness threshold. The abnormality determination unit determines if the exhaust gas sensor has abnormality, excluding an excluded period during which a slope of the output values becomes zero or is inversed with respect to a preceding trend of the timewise change while the output values of the exhaust gas sensor timewisely change between a predetermined first and second determination values.Type: GrantFiled: July 21, 2021Date of Patent: January 9, 2024Inventors: Sayaka Gotou, Kenichi Jino, Kouta Suzuki
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Publication number: 20220044503Abstract: An abnormality detection device determines abnormality in an exhaust gas sensor, disposed in an exhaust passage of an engine to detect a component in exhaust gas. The abnormality detection device includes: a responsiveness determination unit configured to calculate responsiveness of the exhaust gas sensor on the basis of a timewise change of output values of the exhaust gas sensor; and an abnormality determination unit configured to determine that the exhaust gas sensor has abnormality when the responsiveness calculated by the responsiveness determination unit is lower than a predetermined responsiveness threshold. The abnormality determination unit determines if the exhaust gas sensor has abnormality, excluding an excluded period during which a slope of the output values becomes zero or is inversed with respect to a preceding trend of the timewise change while the output values of the exhaust gas sensor timewisely change between a predetermined first and second determination values.Type: ApplicationFiled: July 21, 2021Publication date: February 10, 2022Inventors: Sayaka Gotou, Kenichi Jino, Kouta Suzuki
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Patent number: 10527522Abstract: A misfire determination device of an internal combustion engine, includes an angular velocity obtaining section which obtains two crank angular velocities corresponding to two crank angular positions, respectively, which are set between a range which is around a first compression top dead center and a range which is around a second compression top dead center, in which the first compression top dead center is a compression top dead center of a determination target cylinder, and the second compression top dead center is the compression top dead center of a next ignition cylinder in which ignition is performed next to the ignition performed in the determination target cylinder; and a misfire determination section which determines whether or not misfire has occurred in the determination target cylinder based on a result of comparing a deviation between the two crank angular velocities to a predetermined misfire determination threshold.Type: GrantFiled: November 3, 2017Date of Patent: January 7, 2020Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenichi Jino, Katsumi Sobakiri, Shinichi Kuratani
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Patent number: 10281359Abstract: A misfire determination device of an engine in which explosion occurs at unequal intervals, the engine including a plurality of cylinders and a crankshaft which is angularly displaced at a different angle between expansion strokes, is configured to calculate generated torque correlation amount correlated with generated torque, based on an angular position signal of the crankshaft, and perform misfire determination, based on an average value of the generated torque correlation amount in an interval less than one cycle of the engine, at an angular position of the crankshaft which is different from an angular position of the crankshaft at an ignition timing.Type: GrantFiled: October 1, 2015Date of Patent: May 7, 2019Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenichi Jino, Katsumi Sobakiri, Shinichi Kuratani
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Publication number: 20180128712Abstract: A misfire determination device of an internal combustion engine, includes an angular velocity obtaining section which obtains two crank angular velocities corresponding to two crank angular positions, respectively, which are set between a range which is around a first compression top dead center and a range which is around a second compression top dead center, in which the first compression top dead center is a compression top dead center of a determination target cylinder, and the second compression top dead center is the compression top dead center of a next ignition cylinder in which ignition is performed next to the ignition performed in the determination target cylinder; and a misfire determination section which determines whether or not misfire has occurred in the determination target cylinder based on a result of comparing a deviation between the two crank angular velocities to a predetermined misfire determination threshold.Type: ApplicationFiled: November 3, 2017Publication date: May 10, 2018Inventors: Kenichi Jino, Katsumi Sobakiri, Shinichi Kuratani
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Publication number: 20170299468Abstract: A misfire determination device of an engine in which explosion occurs at unequal intervals, the engine including a plurality of cylinders and a crankshaft which is angularly displaced at a different angle between expansion strokes, is configured to calculate generated torque correlation amount correlated with generated torque, based on an angular position signal of the crankshaft, and perform misfire determination, based on an average value of the generated torque correlation amount in an interval less than one cycle of the engine, at an angular position of the crankshaft which is different from an angular position of the crankshaft at an ignition timing.Type: ApplicationFiled: October 1, 2015Publication date: October 19, 2017Inventors: Kenichi Jino, Katsumi Sobakiri, Shinichi Kuratani
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Patent number: 9033429Abstract: A brake control device for a brake system. The control device can perform both an interlocking brake control and an antilock brake control. The brake system includes a front-wheel hydraulic circuit, a front-wheel-side braking part; a rear-wheel hydraulic circuit, a rear-wheel-side braking part; and an electrically-operated pump which pressurizes the brake fluid. The brake control device includes a usual voltage mode where the interlocking brake control or the anti-lock brake control is performed when the supply voltage is a first voltage or more, and a low voltage mode where at least one of the interlocking brake control and the anti-lock brake control is performed in a limited manner when the supplied voltage is a second, lower voltage. An operation mode is changed from the usual voltage mode to the low voltage mode when it is determined that the supply voltage becomes lower than the first voltage.Type: GrantFiled: October 13, 2010Date of Patent: May 19, 2015Assignees: Bosch Corporation, Kawasaki Jukogyo Kabushiki KaishaInventors: Kazuma Waida, Kenichi Jino, Manabu Kokawa, Junya Iwatsuki, Shunsaku Ono
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Patent number: 8633611Abstract: A motorcycle comprises an electricity accumulator configured to supply electric power to driving devices required for driving of the motorcycle and to non-driving devices; a voltage detector configured to detect a voltage of the electricity accumulator; and a power supply controller configured to control supply of the electric power; the non-driving devices including electric motor devices in an electric motor braking system configured to be electrically driven to assist braking and non-driving electric motor devices other than the electric motor devices in the electric motor braking system; and the power supply controller being configured to inhibit the electric power from being supplied to at least one specified non-driving electric motor device of the non-driving electric motor devices, when the voltage of the electricity accumulator which is detected by the voltage detector is not more than a first predetermined voltage.Type: GrantFiled: September 29, 2010Date of Patent: January 21, 2014Assignees: Kawasaki Jukogyo Kabushiki Kaisha, Bosch CorporationInventors: Kazuma Waida, Kenichi Jino, Manabu Kokawa, Shunsaku Ono, Junya Iwatsuki
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Publication number: 20120200148Abstract: A brake control device for a brake system. The control device can perform both an interlocking brake control and an antilock brake control. The brake system includes a front-wheel hydraulic circuit, a front-wheel-side braking part; a rear-wheel hydraulic circuit, a rear-wheel-side braking part; and an electrically-operated pump which pressurizes the brake fluid. The brake control device includes a usual voltage mode where the interlocking brake control or the anti-lock brake control is performed when the supply voltage is a first voltage or more, and a low voltage mode where at least one of the interlocking brake control and the anti-lock brake control is performed in a limited manner when the supplied voltage is a second, lower voltage. An operation mode is changed from the usual voltage mode to the low voltage mode when it is determined that the supply voltage becomes lower than the first voltage.Type: ApplicationFiled: October 13, 2010Publication date: August 9, 2012Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, BOSCH CORPORATIONInventors: Kazuma Waida, Kenichi Jino, Manabu Kokawa, Junya Iwatsuki, Shunsaku Ono
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Publication number: 20110080043Abstract: A motorcycle comprises an electricity accumulator configured to supply electric power to driving devices required for driving of the motorcycle and to non-driving devices; a voltage detector configured to detect a voltage of the electricity accumulator; and a power supply controller configured to control supply of the electric power; the non-driving devices including electric motor devices in an electric motor braking system configured to be electrically driven to assist braking and non-driving electric motor devices other than the electric motor devices in the electric motor braking system; and the power supply controller being configured to inhibit the electric power from being supplied to at least one specified non-driving electric motor device of the non-driving electric motor devices, when the voltage of the electricity accumulator which is detected by the voltage detector is not more than a first predetermined voltage.Type: ApplicationFiled: September 29, 2010Publication date: April 7, 2011Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kazuma Waida, Kenichi Jino, Manabu Kokawa, Shunsaku Ono, Junya Iwatsuki
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Patent number: 7810599Abstract: A reserve tank layout structure of a motorcycle can secure a capacity of a reserve tank, and allow for easy checking of a remaining amount of a cooling water in the tank from the exterior. The layout structure is provided with a vehicle body frame, an engine supported by the vehicle body frame, a swing arm attached to the vehicle body frame so as to freely oscillate, a rear wheel supported by the swing arm, a wrapping transmission mechanism having an endless rope-like body wound between an output shaft of the engine and an axle of the rear wheel and transmitting power from the output shaft to the axle, and a reserve tank for storing cooling water of the engine, the reserve tank being disposed so that at least a part thereof is positioned at an inner peripheral side of the rope-like body.Type: GrantFiled: September 5, 2006Date of Patent: October 12, 2010Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Yoshifumi Mano, Kenichi Jino, Atsuya Yoshida
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Publication number: 20070056791Abstract: Disclosed is a reserve tank layout structure of a motorcycle which can secure a capacity of a reserve tank, and easily check out a remaining amount of a cooling water in the tank from an external portion. The layout structure is provided with a vehicle body frame, an engine supported to the vehicle body frame, a swing arm attached to the vehicle body frame so as to freely oscillate, a rear wheel supported to the swing arm, a wrapping transmission mechanism having an endless rope-like body wound between an output shaft of the engine and an axle of the rear wheel and transmitting a power from the output shaft to the axle, and a reserve tank storing a cooling water of the engine, the reserve tank being disposed so that at least a part thereof is positioned at an inner peripheral side of the rope-like body.Type: ApplicationFiled: September 5, 2006Publication date: March 15, 2007Inventors: Yoshifumi Mano, Kenichi Jino, Atsuya Yoshida