Patents by Inventor Chikashi Iizuka
Chikashi Iizuka 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: 11554763Abstract: In a brake device for a saddle-type vehicle, including hydraulic front and rear wheel brakes and a first control unit that controls operations of the front wheel brake and the rear wheel brake, a second control unit includes a collision possibility determining section that determines a possibility of collision of an own vehicle with an obstacle ahead, the first control unit has an automatic brake controller that performs automatic brake control to automatically increase braking forces of the front wheel brake and the rear wheel brake, and in case where the collision possibility determining section determines that there is the possibility of collision, the automatic brake controller pressurizes the rear wheel brake to brake a rear wheel, and simultaneously pressurizes the front wheel brake up to a predetermined pressure at which a vehicle body posture is not changed by braking of a front wheel.Type: GrantFiled: October 17, 2018Date of Patent: January 17, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroyuki Kaneta, Chikashi Iizuka, Chihiro Iida, Hironori Nakamura
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Publication number: 20220371676Abstract: A saddle-riding vehicle includes a front wheel suspension device which supports a steering wheel (front wheel) and a steering handle (bar handle 4), a chassis frame which supports the front wheel suspension device to be steerable, a handle lock mechanism 60 which locks the steering of the front wheel suspension device with respect to the chassis frame at a predetermined handle lock position P1, a steering actuator 43 which applies an assist torque to the front wheel suspension device, and a control device 23 which controls the driving of the steering actuator 43. The control device 23 operates the steering actuator 43 so that the front wheel suspension device is turned to the handle lock position P1 when detecting a predetermined lock standby state.Type: ApplicationFiled: September 24, 2020Publication date: November 24, 2022Inventors: Chikashi Iizuka, Kineo Tomura
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Publication number: 20220340225Abstract: This saddle-type vehicle includes a warning vibration generator (205) that generates a predetermined vibration to issue a warning to a driver, the warning vibration generator (205) includes a warning selection unit (210) that selects a predetermined warning in accordance with a strength of driving assist control, and, in accordance with the warning selected by the warning selection unit (210), the warning vibration generator (205) generates a vibration (a haptic vibration) as a warning in a frequency band that avoids a vibration frequency common to a motorcycle.Type: ApplicationFiled: September 24, 2020Publication date: October 27, 2022Inventors: Chikashi Iizuka, Yosuke Wada, Kineo Tomura
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Publication number: 20220340203Abstract: When an external detection device detects an obstacle (another vehicle (T)) on either a left or right side of the own vehicle (M), a control device of a steering assistance device for a saddle type vehicle controls an assist torque so that a handle operation to the side opposite to the side on which the obstacle is detected becomes heavier (more difficult to turn) than a case in which the obstacle is not detected. The handle operation to the side on which the obstacle is detected makes a handle relatively light (makes it easier to turn) while steering assist is maintained.Type: ApplicationFiled: September 28, 2020Publication date: October 27, 2022Inventors: Chikashi Iizuka, Yosuke Wada
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Patent number: 11358574Abstract: In this brake control device for a motorcycle, a deceleration threshold value calculation unit limits target wheel deceleration to a threshold value or less on the basis of a bank angle estimated by a bank angle calculation unit. Thus, the behavior of the vehicle body during turning of the motorcycle can be made more stable so as not to cause discomfort to a driver.Type: GrantFiled: March 31, 2016Date of Patent: June 14, 2022Assignees: Honda Motor Co., Ltd., Hitachi Astemo Ltd.Inventors: Chikashi Iizuka, Makoto Toda, Hiroki Kitagawa, Tetsuya Hasegawa, Nobuyuki Kodaira
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Publication number: 20220126690Abstract: A saddled vehicle includes an information display unit (37) that displays information on a preceding vehicle (B1) which an own vehicle (M) follows when traveling, wherein a positional relationship between the own vehicle (M) and the preceding vehicle (B1) is recognized, and, in a case in which a change occurs in the positional relationship, a display mode of the preceding vehicle (B1) on the information display unit (37) is changed.Type: ApplicationFiled: March 28, 2019Publication date: April 28, 2022Inventors: Hiroshi Maeda, Hiroshi Tatsumi, Chikashi Iizuka
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Publication number: 20200391732Abstract: Engine braking is stabilized so that a saddled vehicle can be decelerated smoothly In a saddled vehicle including an engine including an electronic throttle valve mechanism that drives an air intake throttle valve via an actuator, and a first control unit that controls the engine, the first control unit has an engine braking controller that controls the throttle valve so as to generate a force that offsets the engine braking of the engine when the vehicle is decelerated.Type: ApplicationFiled: December 21, 2018Publication date: December 17, 2020Inventors: Hiroyuki Kaneta, Chikashi Iizuka, Chihiro Iida, Hironori Nakamura
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Publication number: 20200276961Abstract: In a brake device for a saddle-type vehicle, including hydraulic front and rear wheel brakes and a first control unit that controls operations of the front wheel, brake and the rear wheel brake, a second control unit includes a collision possibility determining section that determines a possibility of collision of an own vehicle with an obstacle ahead, the first control unit has an automatic brake controller that performs automatic brake control to automatically increase braking forces of the front wheel brake and the rear wheel brake, and in case where the collision possibility determining section determines that there is the possibility of collision, the automatic brake controller pressurizes the rear wheel brake to brake a rear wheel, and simultaneously pressurizes the front wheel brake up to a predetermined pressure at which a vehicle body posture is not changed by braking of a front wheel.Type: ApplicationFiled: October 17, 2018Publication date: September 3, 2020Inventors: Hiroyuki Kaneta, Chikashi Iizuka, Chihiro Iida, Hironori Nakamura
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Publication number: 20190135248Abstract: In this brake control device for a motorcycle, a deceleration threshold value calculation unit limits target wheel deceleration to a threshold value or less on the basis of a bank angle estimated by a bank angle calculation unit. Thus, the behavior of the vehicle body during turning of the motorcycle can be made more stable so as not to cause discomfort to a driver.Type: ApplicationFiled: March 31, 2016Publication date: May 9, 2019Inventors: Chikashi IIZUKA, Makoto TODA, Hiroki KITAGAWA, Tetsuya HASEGAWA, Nobuyuki KODAIRA
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Patent number: 9561785Abstract: A vehicle rear wheel lift tendency judgment device: includes a first deceleration obtaining device for obtaining a first deceleration along a first straight line, being a component in a first direction of an acceleration on a center of gravity, and a second deceleration obtaining device for obtaining a second deceleration along a second straight line, being a component in a second direction of the acceleration; judges that a rear wheel tends to be lifted, when the first deceleration is greater in the first direction than a first threshold, or when the second deceleration is greater in the second direction than a second threshold; and performs at least one of setting for shifting the first threshold in a direction opposite to the first direction and setting for shifting the second threshold in a direction opposite to the second direction, when a second-deceleration change rate being a change amount in the second deceleration per unit time becomes greater in the second direction than a change-rate threshold, enType: GrantFiled: February 18, 2015Date of Patent: February 7, 2017Assignees: HONDA MOTOR CO., LTD., NISSIN KOGYO CO., LTD.Inventors: Chikashi Iizuka, Makoto Toda, Hiroki Kitagawa, Tetsuya Hasegawa, Nobuyuki Kodaira, Tomoharu Tsuchiya
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Publication number: 20150232074Abstract: A vehicle rear wheel lift tendency judgment device: includes a first deceleration obtaining device for obtaining a first deceleration along a first straight line, being a component in a first direction of an acceleration on a center of gravity, and a second deceleration obtaining device for obtaining a second deceleration along a second straight line, being a component in a second direction of the acceleration; judges that a rear wheel tends to be lifted, when the first deceleration is greater in the first direction than a first threshold, or when the second deceleration is greater in the second direction than a second threshold; and performs at least one of setting for shifting the first threshold in a direction opposite to the first direction and setting for shifting the second threshold in a direction opposite to the second direction, when a second-deceleration change rate being a change amount in the second deceleration per unit time becomes greater in the second direction than a change-rate threshold, enType: ApplicationFiled: February 18, 2015Publication date: August 20, 2015Applicants: HONDA MOTOR CO., LTD., NISSIN KOGYO CO., LTD.Inventors: Chikashi Iizuka, Makoto Toda, Hiroki Kitagawa, Tetsuya Hasegawa, Nobuyuki Kodaira, Tomoharu Tsuchiya
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Patent number: 7798273Abstract: To enhance a degree of freedom in the shape and the design of a swing arm without being influenced by the variation of a part for supporting an exhaust muffler on the side of the swing arm and a part for coupling a rear cushion unit to the side of the swing arm in a compact vehicle, a cushion bracket coupled to a lower end of the rear cushion unit and a muffler bracket that supports the exhaust muffler are provided as separate elements from the swing arm and are attached to the swing arm.Type: GrantFiled: March 25, 2008Date of Patent: September 21, 2010Assignee: Honda Motor Co., Ltd.Inventors: Noriya Shimozato, Satoru Ikami, Kengo Yano, Shohei Takiguchi, Chikashi Iizuka
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Patent number: 7527119Abstract: A swing arm support structure is provided in a motorcycle, in which first and second support arm portions are provided on a front portion of a swing arm. The support arm portions are pivotally supported by a power unit through first and second pivot shafts, so that rigidity and strength of the paired support arm portions is ensured. A flange is formed on the first pivot shaft, which extends at least partially up to an outer edge of a power unit case and projects radially outwardly from an end portion of the first pivot shaft adjacent the case. The flange portion is removably attached to the case. An outer end of an output shaft extends through and is supported by the first pivot shaft, and this outer end projects outwards of the first support arm portion. A drive gear is fixed to the outer end portion of the output shaft.Type: GrantFiled: December 7, 2005Date of Patent: May 5, 2009Assignee: Honda Motor Co., Ltd.Inventors: Chikashi Iizuka, Hiroyuki Tanaka
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Patent number: 7434645Abstract: A structure for supporting a swing arm in a motorcycle is provided in which a power unit swingably supports a front portion of the swing arm via a first pivot of a cylindrical shape that is coaxial with an output shaft of the power unit and a second pivot that is coaxial with the first pivot. The number of parts used are reduced and the removal and installation of the swing arm is facilitated. An output shaft, an outer end portion of which projects outwardly of a swing arm, is connected to a final transmission member of a reduction transmission and is capable of removal or insertion in an axial direction, while being incapable of relative rotation about an axis. A first pivot is removably mounted on a power unit. A second pivot is removably secured to the power unit PA or the swing arm.Type: GrantFiled: November 9, 2005Date of Patent: October 14, 2008Assignee: Honda Motor Co., Ltd.Inventors: Chikashi Iizuka, Hiroyuki Tanaka
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Publication number: 20070007065Abstract: A swing arm support structure is provided in a motorcycle, in which first and second support arm portions are provided on a front portion of a swing arm. The support arm portions are pivotally supported by a power unit through first and second pivot shafts, so that rigidity and strength of the paired support arm portions is ensured. A flange is formed on the first pivot shaft, which extends at least partially up to an outer edge of a power unit case and projects radially outwardly from an end portion of the first pivot shaft adjacent the case. The flange portion is removably attached to the case. An outer end of an output shaft extends through and is supported by the first pivot shaft, and this outer end projects outwards of the first support arm portion. A drive gear is fixed to the outer end portion of the output shaft.Type: ApplicationFiled: December 7, 2005Publication date: January 11, 2007Applicant: Honda Motor Co., Ltd.Inventors: Chikashi Iizuka, Hiroyuki Tanaka
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Publication number: 20060102406Abstract: A structure for supporting a swing arm in a motorcycle is provided in which a power unit swingably supports a front portion of the swing arm via a first pivot of a cylindrical shape that is coaxial with an output shaft of the power unit and a second pivot that is coaxial with the first pivot. The number of parts used are reduced and the removal and installation of the swing arm is facilitated. An output shaft, an outer end portion of which projects outwardly of a swing arm, is connected to a final transmission member of a reduction transmission and is capable of removal or insertion in an axial direction, while being incapable of relative rotation about an axis. A first pivot is removably mounted on a power unit. A second pivot is removably secured to the power unit PA or the swing arm.Type: ApplicationFiled: November 9, 2005Publication date: May 18, 2006Inventors: Chikashi Iizuka, Hiroyuki Tanaka
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Patent number: 7004276Abstract: A low floor type vehicle 10 is disclosed with a housing box 59 having substantially similar longitudinal length to the longitudinal length of a seat is provided under the seat 58 and a rear cushion for the rear wheel is transversely arranged under the housing box. The housing box is provided with a lid for checking the rear cushion for the rear wheel at the bottom. The engine is suspended from a diamond type frame 20. The rear cushion for the rear wheel is arranged along the rear of an upper frame extended backward and downward from a head pipe.Type: GrantFiled: September 18, 2003Date of Patent: February 28, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Chikashi Iizuka, Yoshio Takada
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Publication number: 20040124032Abstract: A low floor type vehicle 10 is disclosed with a housing box 59 having substantially similar longitudinal length to the longitudinal length of a seat is provided under the seat 58 and a rear cushion for the rear wheel is transversely arranged under the housing box. The housing box is provided with a lid for checking the rear cushion for the rear wheel at the bottom. The engine is suspended from a diamond type frame 20. The rear cushion for the rear wheel is arranged along the rear of an upper frame extended backward and downward from a head pipe.Type: ApplicationFiled: September 18, 2003Publication date: July 1, 2004Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Chikashi Iizuka, Yoshio Takada
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Patent number: 6547024Abstract: A motorcycle includes an engine mounted on a frame in a non-swingable manner. First and second rear arms are swingably supported by the engine about first and second coaxial swing axes, respectively. A rear wheel is rotatably supported between the first and second rear arms. The second rear arm includes front and rear arm members, which are supported swingably by the engine and support an axle of the rear wheel, respectively. The arm members are separably connected together to facilitate servicing and removal of the rear wheel.Type: GrantFiled: September 6, 2001Date of Patent: April 15, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takashi Ohyama, Chikashi Iizuka, Shinji Kuga
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Patent number: 6450301Abstract: A motorcycle includes a rear wheel supported by a swing arm, and a damper extends between the swing arm and the body. A swing arm extension portion extends in the rearward direction from a rear wheel shaft supporting portion of the swing arm. The damper is connected to a rear end connecting portion of the swing arm extension portion. A brake device includes a parking brake caliper and a rear brake caliper. The parking brake caliper and the rear brake caliper are arranged above and below the swing arm extension portion. The rear brake caliper and the parking brake caliper can be mounted without shifting the swing arm toward the outside in the body in the width direction more than necessary.Type: GrantFiled: September 7, 2001Date of Patent: September 17, 2002Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Chikashi Iizuka, Yoshinobu Honda