Patents by Inventor Hisashi Kunii
Hisashi Kunii 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: 6821228Abstract: A control apparatus for a continuously variable transmission for use with a vehicle is provided for permitting a driver to select one from three transmission modes for the continuously variable transmission, and providing an appropriate transmission ratio in accordance with a particular operating condition of a vehicle without causing an insufficient engine torque or over-revolution, particularly when the transmission is switched from a continuously variable transmission mode to a stepped manual transmission mode. The control apparatus comprises an ECU and an MT switch. The ECU executes a continuous automatic transmission mode for continuously setting a transmission ratio of the continuously variable transmission in accordance with a detected operating condition of the vehicle.Type: GrantFiled: May 27, 2003Date of Patent: November 23, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Akihira Aoki, Shuichi Fujimoto, Hisashi Kunii
-
Patent number: 6692388Abstract: A hydraulic controller comprises a structure composed of a separator plate 70 sandwiched between first and second valve bodies 60a and 80a, in which structure, an oil passage 103 connecting a SC shift valve 92 provided upstream and a SC backup valve 94 provided downstream is provided with a choke 75. When the separator plate 70, in which a choke opening 75a is formed, is sandwiched between the first and second valve bodies, the upstream part of the oil passage 103 is in fluid communication with one end of the choke opening 75a while the downstream part of the oil passage 103 is in fluid communication with the other end of the choke opening 75a. In this arrangement, a long narrow room formed by the choke opening 75a sandwiched between the first and second valve bodies comprises the choke 75.Type: GrantFiled: May 15, 2002Date of Patent: February 17, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hideo Nirasawa, Katsuyuki Narai, Akihiro Yamaguchi, Junji Urano, Hisashi Kunii
-
Publication number: 20030228953Abstract: A control apparatus for a continuously variable transmission for use with a vehicle is provided for permitting a driver to select one from three transmission modes for the continuously variable transmission, and providing an appropriate transmission ratio in accordance with a particular operating condition of a vehicle without causing an insufficient engine torque or over-revolution, particularly when the transmission is switched from a continuously variable transmission mode to a stepped manual transmission mode. The control apparatus comprises an ECU and an MT switch. The ECU executes a continuous automatic transmission mode for continuously setting a transmission ratio of the continuously variable transmission in accordance with a detected operating condition of the vehicle.Type: ApplicationFiled: May 27, 2003Publication date: December 11, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Akihira Aoki, Shuichi Fujimoto, Hisashi Kunii
-
Publication number: 20020189252Abstract: A hydraulic controller comprises a structure composed of a separator plate 70 sandwiched between first and second valve bodies 60a and 80a, in which structure, an oil passage 103 connecting a SC shift valve 92 provided upstream and a SC backup valve 94 provided downstream is provided with a choke 75. When the separator plate 70, in which a choke opening 75a is formed, is sandwiched between the first and second valve bodies, the upstream part of the oil passage 103 is in fluid communication with one end of the choke opening 75a while the downstream part of the oil passage 103 is in fluid communication with the other end of the choke opening 75a. In this arrangement, a long narrow room formed by the choke opening 75a sandwiched between the first and second valve bodies comprises the choke 75.Type: ApplicationFiled: May 15, 2002Publication date: December 19, 2002Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Hideo Nirasawa, Katsuyuki Narai, Akihiro Yamaguchi, Junji Urano, Hisashi Kunii
-
Patent number: 5797821Abstract: An automatic transmission includes a frictionally engaging element for establishing a predetermined speed range. This predetermined speed range may be a second or higher speed range, and it is set temporarily in N-D squat control and also used for establishing a reverse range. In this transmission, engagement-actuation control of the frictionally engaging element for establishing the predetermined speed range which is executed when a shift is made from a N range to a R range comprises a plurality of control stages. When a shift to the R range is made via the N range following a N-D shift, a shift control apparatus detects the engagement condition of the the frictionally engaging element for establishing the predetermined speed range, selects one of the control stages in correspondence with the engagement condition, and initiates the engagement-actuation control of the frictionally engaging element from the control stage selected, so as to execute an engagement control for establishing the reverse range.Type: GrantFiled: April 4, 1996Date of Patent: August 25, 1998Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shuichi Fujimoto, Hisashi Kunii, Kazumi Sato, Yoshiyuki Ura, Takamichi Shimada
-
Patent number: 5679095Abstract: An engagement-actuation control for a frictionally engaging element to establish a driving range in response to a shift command to shift from a neutral range to the driving range comprises a plurality of control stages including an invalid-stroke-clearing control. This invalid-stroke-clearing control is finished when invalid-stroke clearing is judged complete on the basis that the absolute value of the rate of rotational change of a turbine shaft is equal to or greater than a predetermined rate and that the difference between the rotational speed of an engine and the rotational speed of the turbine shaft is equal to or greater than a predetermined value.Type: GrantFiled: April 4, 1996Date of Patent: October 21, 1997Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Noboru Sekine, Shuichi Fujimoto, Kazumi Sato, Hisashi Kunii, Yoshiyuki Ura, Takamichi Shimada
-
Patent number: 5655993Abstract: A shift control apparatus for an automatic transmission for a vehicle wherein D-N-D in-gear shifts are carried out quickly without any shift shock. Engagement-actuation control for a frictionally engaging element to establish a D range when a shift is made from a N range to the D range comprises a plurality of control stages, for example, an invalid-stroke clearing stage, an intermediate-pressure retaining stage, a feedback stage, etc. When the shift to the D range is made following a shift from the D range to the N range, a shift control apparatus detects the engagement condition of the the frictionally engaging element for establishing the D range, selects one of the control stages in correspondence with the engagement condition, and initiates the engagement-actuation control for the frictionally engaging element from the control stage selected.Type: GrantFiled: April 10, 1996Date of Patent: August 12, 1997Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shuichi Fujimoto, Kazumi Sato, Yoshiyuki Ura, Hisashi Kunii, Takamichi Shimada
-
Patent number: 5239894Abstract: A shift control system for a vehicle transmission with multiple gear trains and a main shaft connected to an engine crankshaft through a clutch. The shift control system allowing shifting without disengaging the clutch.Type: GrantFiled: November 27, 1991Date of Patent: August 31, 1993Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kiyoshi Oikawa, Takafumi Tsurumi, Akihito Ohhashi, Noboru Ashikawa, Kouji Yamaguchi, Hisashi Kunii