Patents by Inventor Sadahiro Kawahara
Sadahiro Kawahara 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: 11875685Abstract: A convoy travel system includes a plurality of vehicles and is configured such that the plurality of vehicles form a convoy and travel. The plurality of vehicles include a preceding vehicle and following vehicles configured so as to follow the preceding vehicle by means of automatic driving. The preceding vehicle is equipped with a steering information acquisition unit configured so as to acquire steering information pertaining to steering of the preceding vehicle, and a transmission unit configured so as to transmit the steering information to the following vehicles. The following vehicles are equipped with a reception unit configured so as to receive the steering information, and an automatic driving control unit configured so as to begin a steering angle control for avoiding a collision with an obstruction when the steering information indicates the execution of emergency steering for avoiding a collision with the obstruction.Type: GrantFiled: July 12, 2019Date of Patent: January 16, 2024Assignees: HINO MOTORS, LTD., JTEKT CORPORATIONInventors: Hirokazu Okuyama, Nobuhiko Kojima, Naoshi Ichinose, Hirofumi Yasui, Tomonari Yamakawa, Sadahiro Kawahara, Masayoshi Takeda, Syuuichi Yonemura
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Patent number: 11400936Abstract: A travel assistance device configured to execute travel assistance when a plurality of vehicles form a vehicle group and travel in a line. The travel assistance device includes: a first control unit configured to, if there is lane-change instruction for the vehicle group, cause an end-of-line vehicle to change lanes, such vehicle being the vehicle from among the plurality of vehicles forming the vehicle group that is positioned at the end of the line; and a second control unit configured to, following the lane change of the end-of-line vehicle, allow a lane change for at least one vehicle that is other than the end-of-line vehicle and that is one of the vehicles forming the vehicle group.Type: GrantFiled: April 25, 2019Date of Patent: August 2, 2022Assignees: JTEKT CORPORATION, HINO MOTORS, LTD.Inventors: Syuuichi Yonemura, Masayoshi Takeda, Hirokazu Okuyama, Hirofumi Yasui, Naoshi Ichinose, Nobuhiko Kojima, Tomonari Yamakawa, Sadahiro Kawahara
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Publication number: 20210304618Abstract: A convoy travel system includes a plurality of vehicles and is configured such that the plurality of vehicles form a convoy and travel. The plurality of vehicles include a preceding vehicle and following vehicles configured so as to follow the preceding vehicle by means of automatic driving. The preceding vehicle is equipped with a steering information acquisition unit configured so as to acquire steering information pertaining to steering of the preceding vehicle, and a transmission unit configured so as to transmit the steering information to the following vehicles. The following vehicles are equipped with a reception unit configured so as to receive the steering information, and an automatic driving control unit configured so as to begin a steering angle control for avoiding a collision with an obstruction when the steering information indicates the execution of emergency steering for avoiding a collision with the obstruction.Type: ApplicationFiled: July 12, 2019Publication date: September 30, 2021Applicants: HINO MOTORS, LTD., JTEKT CORPORATIONInventors: Hirokazu OKUYAMA, Nobuhiko KOJIMA, Naoshi ICHINOSE, Hirofumi YASUI, Tomonari YAMAKAWA, Sadahiro KAWAHARA, Masayoshi TAKEDA, Syuuichi YONEMURA
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Publication number: 20210245759Abstract: A travel assistance device configured to execute travel assistance when a plurality of vehicles form a vehicle group and travel in a line. The travel assistance device includes: a first control unit configured to, if there is lane-change instruction for the vehicle group, cause an end-of-line vehicle to change lanes, such vehicle being the vehicle from among the plurality of vehicles forming the vehicle group that is positioned at the end of the line; and a second control unit configured to, following the lane change of the end-of-line vehicle, allow a lane change for at least one vehicle that is other than the end-of-line vehicle and that is one of the vehicles forming the vehicle group.Type: ApplicationFiled: April 25, 2019Publication date: August 12, 2021Applicants: JTEKT CORPORATION, HINO MOTORS, LTD.Inventors: Syuuichi YONEMURA, Masayoshi TAKEDA, Hirokazu OKUYAMA, Hirofumi YASUI, Naoshi ICHINOSE, Nobuhiko KOJIMA, Tomonari YAMAKAWA, Sadahiro KAWAHARA
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Publication number: 20210240201Abstract: A platooning system includes a vehicle control system installed in each of vehicles that include a manually-driven head vehicle. The vehicle control system controls a host vehicle such that the host vehicle follows a lead vehicle through wireless communication between the host vehicle and the lead vehicle. The vehicle control system is installed in the host vehicle and the lead vehicle. The vehicle control system includes a sensor that detects a state of the host vehicle, an actuator that adjusts a behavior of the host vehicle, and a controller that controls the host vehicle. The controller of the head vehicle physically notifies a driver of the host vehicle of a state of a subsequent vehicle by operating the actuator of the host vehicle when a state signal including information that indicates the state of the subsequent vehicle is received through the wireless communication.Type: ApplicationFiled: April 22, 2019Publication date: August 5, 2021Applicants: JTEKT CORPORATION, HINO MOTORS, LTD.Inventors: Hirokazu OKUYAMA, Nobuhiko KOJIMA, Naoshi ICHINOSE, Hirofumi YASUI, Masayoshi TAKEDA, Syuuichi YONEMURA, Sadahiro KAWAHARA, Tomonari YAMAKAWA
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Patent number: 7931281Abstract: A variable stiffness stabilizer device (1) has a stabilizer bar (2) and actuators (3). The stabilizer bar (2) has a torsion bar (4) extending in the lateral direction (X1) of a vehicle and arms (6) connected through bend portions (5) to the ends (4a, 4b) of the torsion bar (4) and bendingly deformed according to the strokes of wheel supporting members (11). Variable bending stiffness parts (13; 130) of the arms (6) are rotatable about the axes (C1) of the arms (6), so that the bending stiffness of the arms (6) can be changed according to their rotational positions. The actuators (3) rotationally drive the variable bending stiffness parts (13; 130) about the axes (C1) to adjust the rotational positions of the variable bending stiffness parts (13; 130).Type: GrantFiled: October 3, 2007Date of Patent: April 26, 2011Assignee: JTEKT CorporationInventors: Shingo Maeda, Sadahiro Kawahara, Masanori Arima, Kosuke Yamanaka
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Patent number: 7862084Abstract: A vehicle steering apparatus, includes a steering member for rotational operation, a support mechanism that supports the steering member so as to be movable between a housing position where the steering member is housed in a fixed frame of an instrument panel and a projection position where the steering member projects to an outside of the fixed frame, and that regulates an attitude of the steering member located between the housing position and the projection position, and a movable frame that moves together with the steering member, and that constitutes a part of the instrument panel by covering an opening formed in the fixed frame of the instrument panel when the steering member is housed at the housing position.Type: GrantFiled: September 5, 2008Date of Patent: January 4, 2011Assignee: JTEKT CorporationInventors: Shingo Maeda, Ryouhei Hayama, Sadahiro Kawahara, Shiro Nakano, Kou Shiba
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Patent number: 7806224Abstract: A vehicle steering apparatus includes a steering member for rotational operation, and a support mechanism that supports the steering member so as to be movable between a housing position where the steering member is housed in a fixed frame of an instrument panel and a projection position where the steering member projects to an outside of the fixed frame. The steering member includes a main body supported by the support mechanism, a pair of grip sections which are movable between the housing position and the projection position together with the main body, and which are supported so as to be movable between a nonoperating position and an operating position by the main body, and a grip section drive actuator which is supported by the main body, and drives the pair of grip sections to the nonoperating position and the operating position.Type: GrantFiled: September 5, 2008Date of Patent: October 5, 2010Assignee: JTEKT CorporationInventors: Shingo Maeda, Ryouhei Hayama, Sadahiro Kawahara, Shiro Nakano, Kou Shiba
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Publication number: 20100013175Abstract: A variable stiffness stabilizer device (1) has a stabilizer bar (2) and actuators (3). The stabilizer bar (2) has a torsion bar (4) extending in the lateral direction (X1) of a vehicle and arms (6) connected through bend portions (5) to the ends (4a, 4b) of the torsion bar (4) and bendingly deformed according to the strokes of wheel supporting members (11). Variable bending stiffness parts (13; 130) of the arms (6) are rotatable about the axes (C1) of the arms (6), so that the bending stiffness of the arms (6) can be changed according to their rotational positions. The actuators (3) rotationally drive the variable bending stiffness parts (13; 130) about the axes (C1) to adjust the rotational positions of the variable bending stiffness parts (13; 130).Type: ApplicationFiled: October 3, 2007Publication date: January 21, 2010Applicant: JTEKT CorporationInventors: Shingo Maeda, Sadahiro Kawahara, Masanori Arima, Kosuke Yamanaka
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Publication number: 20090064815Abstract: A vehicle steering apparatus includes a steering member for rotational operation, and a support mechanism that supports the steering member so as to be movable between a housing position where the steering member is housed in a fixed frame of an instrument panel and a projection position where the steering member projects to an outside of the fixed frame. The steering member includes a main body supported by the support mechanism, a pair of grip sections which are movable between the housing position and the projection position together with the main body, and which are supported so as to be movable between a nonoperating position and an operating position by the main body, and a grip section drive actuator which is supported by the main body, and drives the pair of grip sections to the nonoperating position and the operating position.Type: ApplicationFiled: September 5, 2008Publication date: March 12, 2009Applicant: JTEKT CorporationInventors: Shingo MAEDA, Ryouhei HAYAMA, Sadahiro KAWAHARA, Shiro NAKANO, Kou SHIBA
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Publication number: 20090065285Abstract: A vehicle steering apparatus, includes a steering member for rotational operation, a support mechanism that supports the steering member so as to be movable between a housing position where the steering member is housed in a fixed frame of an instrument panel and a projection position where the steering member projects to an outside of the fixed frame, and that regulates an attitude of the steering member located between the housing position and the projection position, and a movable frame that moves together with the steering member, and that constitutes a part of the instrument panel by covering an opening formed in the fixed frame of the instrument panel when the steering member is housed at the housing position.Type: ApplicationFiled: September 5, 2008Publication date: March 12, 2009Applicant: JTEKT CORPORATIONInventors: Shingo Maeda, Ryouhei Hayama, Sadahiro Kawahara, Shiro Nakano, Kou Shiba
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Patent number: 6742411Abstract: A brake pedal apparatus for an automotive vehicle is disclosed as including a pedal bracket 2, a pivot bracket 3, a slide plate 9 fixedly secured to a vehicular body structural member 41, 52, and an impact absorbing section 10 located between the pedal bracket and the slide plate. During a frontal collision of a vehicle, the impact absorbing section allows the pedal bracket to be contracted and deformed into a position wherein a pedal arm 8 is retracted in a forward direction of the vehicle whereby even when a master vac. is retracted in the forward direction or even when a dash floor panel 40 is deformed into a vehicle compartment with a resultant rearward movement of a push rod 24, a depressing position of the pedal arm remains in a position to avoid a differential feeling touch to be applied to a vehicle driver.Type: GrantFiled: August 23, 2002Date of Patent: June 1, 2004Assignee: Nissan Motor Co., Ltd.Inventors: Tsutomu Aoki, Hiroyuki Mizuma, Sadahiro Kawahara
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Publication number: 20030183037Abstract: A pedal mounting structure which includes a pedal arm (3) including a pedal (2); a supporting unit (5, 6) pivotally supporting the pedal arm (3) as turnable in accordance with a stepping operation onto the pedal (2); and a first fixture (8) and a second fixture (9) for fitting the supporting unit (5, 6) to a vehicle body (10). The second fixture (9) is provided in a position closer to the pedal (2) than the first fixture (8), and is fitted to a portion having a smaller deformation upon a collision of a vehicle than a portion to which the first fixture (8) is fitted.Type: ApplicationFiled: February 28, 2003Publication date: October 2, 2003Inventors: Sadahiro Kawahara, Sadayuki Kezuka, Hiroyuki Mizuma, Naoyuki Sugiyama
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Publication number: 20030029267Abstract: A brake pedal apparatus for an automotive vehicle is disclosed as including a pedal bracket 2, a pivot bracket 3, a slide plate 9 fixedly secured to a vehicular body structural member 41, 52, and an impact absorbing section 10 located between the pedal bracket and the slide plate. During a frontal collision of a vehicle, the impact absorbing section allows the pedal bracket to be contracted and deformed into a position wherein a pedal arm 8 is retracted in a forward direction of the vehicle whereby even when a master vac. is retracted in the forward direction or even when a dash floor panel 40 is deformed into a vehicle compartment with a resultant rearward movement of a push rod 24, a depressing position of the pedal arm remains in a position to avoid a differential feeling touch to be applied to a vehicle driver.Type: ApplicationFiled: August 23, 2002Publication date: February 13, 2003Inventors: Tsutomu Aoki, Hiroyuki Mizuma, Sadahiro Kawahara
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Patent number: 6418812Abstract: A brake pedal structure for a vehicle includes a pedal bracket provided on a dash panel of the vehicle, a pedal shaft provided on the pedal bracket, a pedal arm pivotally supported by the pedal shaft in a freely rotatable manner around the pedal shaft as a rotational axis, and a push rod connected to the pedal arm for operating a brake system of the vehicle in response to rotation of the pedal arm. The push rod has a portion so as to interrupt the transmission of a load input at the time of collision of said vehicle.Type: GrantFiled: June 14, 2001Date of Patent: July 16, 2002Assignees: Nissan Motor Co., Ltd., Yorozu CorporationInventors: Hiroyuki Mizuma, Sadahiro Kawahara, Tohru Kobayashi, Sunao Gouhara
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Publication number: 20010027696Abstract: A brake pedal structure for a vehicle disclosed herein includes a pedal bracket provided on a dash panel of the vehicle, a pedal shaft provided on the pedal bracket, a pedal arm pivotally supported by the pedal shaft in a freely rotatable manner around the pedal shaft as a rotational axis, and a push rod connected to the pedal arm for operating a brake system of the vehicle in response to rotation of the pedal arm. The push rod has a portion so as to interrupt the transmission of a load input at the time of collision of said vehicle.Type: ApplicationFiled: June 14, 2001Publication date: October 11, 2001Inventors: Hiroyuki Mizuma, Sadahiro Kawahara, Tohru Kobayashi, Sunao Gouhara
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Patent number: 6279417Abstract: A brake pedal structure for a vehicle disclosed herein includes a pedal bracket provided on a dash panel of the vehicle, a pedal shaft provided on the pedal bracket, a pedal arm pivotally supported by the pedal shaft in a freely rotatable manner around the pedal shaft as a rotational axis, and a push rod connected to the pedal arm for operating a brake system of the vehicle in response to rotation of the pedal arm. The push rod has a portion so as to interrupt the transmission of a load input at the time of collision of said vehicle.Type: GrantFiled: January 13, 1999Date of Patent: August 28, 2001Assignees: Nissan Motor Co., Ltd., Yorozu CorporationInventors: Hiroyuki Mizuma, Sadahiro Kawahara, Tohru Kobayashi, Sunao Gouhara
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Patent number: 6142036Abstract: A brake pedal apparatus for a vehicle includes a pedal bracket provided on a dash panel, a pedal shaft provided on the pedal bracket, a pedal arm supported by the pedal shaft in a rotatable manner around the pedal shaft, a first engaging portion provided on the pedal arm, a push rod lever supported by the pedal shaft in a rotatable manner around the pedal shaft and connected to a push rod, and a second engaging portion provided on the push rod lever. The push rod lever or the pedal arm is movable along the axial direction of the pedal shaft, and the first and second engaging portions are capable of engaging with each other.Type: GrantFiled: January 13, 1999Date of Patent: November 7, 2000Assignees: Nissan Motor Co., Ltd., Yorozu CorporationInventors: Hiroyuki Mizuma, Sadahiro Kawahara, Sunao Gouhara
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Patent number: 5309784Abstract: A gear shift apparatus includes a shaft having a first axis extending laterally with respect to a vehicle body. A bracket is secured to a pivot pin rotatable about a second axis extending laterally with respect to the first axis. A gear shift lever is secured to the bracket for unitary rotation therewith about the second axis. A sleeve is fixed to the gear shift lever for unitary motion therewith. A check ball is supported by the sleeve and urged against a cam surface of a stationary position plate. The cam surface has a plurality of recesses engaged with the check ball.Type: GrantFiled: May 4, 1993Date of Patent: May 10, 1994Assignees: Nissan Motor Co., Ltd., Ohi Seisakusho Co., Ltd., Fuji Kiko Co., Ltd.Inventors: Satoshi Kobayashi, Sadahiro Kawahara, Hiroshi Yamazaki, Takumi Watanabe, Yasushi Asano, Yoshimasa Kataumi