Patents by Inventor Takahiro OHMI
Takahiro OHMI 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: 10889161Abstract: An electric vehicle includes an electric motor, a power storage device, a control device, and a refrigerant circuit. The refrigerant circuit includes a compressor, an outdoor heat exchanger, a first indoor heat exchanger, a first expansion valve, a second expansion valve, and a second indoor heat exchanger. The control device repeats an operation of performing the other of a first operation and a second operation after performing one thereof when a remaining capacity of a power storage device is equal to or larger than a predetermined value. In the first operation, the first expansion valve is not decompressed and the second expansion valve is decompressed. In the second operation, the first expansion valve is decompressed and the second expansion valve is not decompressed.Type: GrantFiled: December 12, 2018Date of Patent: January 12, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Yoshiyuki Takeuchi, Ryoma Taguchi, Takahiro Ohmi, Osamu Ishida
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Publication number: 20190193520Abstract: A motor-driven vehicle includes an electric motor, a power storage device, a controller, and a refrigerant circuit. The refrigerant circuit includes a compressor, an outdoor heat exchanger, a first indoor heat exchanger, a first expansion valve, a second expansion valve, and a second indoor heat exchanger. The controller switches a ratio of an amount of pressure reduction of the second expansion valve to an amount of pressure reduction of the first expansion valve with a predetermined temperature as a boundary when a remaining capacity of the power storage device is equal to or greater than a predetermined value.Type: ApplicationFiled: December 6, 2018Publication date: June 27, 2019Inventors: Isao Tsunoda, Osamu Ishida, Yoshiyuki Takeuchi, Ryoma Taguchi, Takahiro Ohmi
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Publication number: 20190193523Abstract: An electric vehicle includes an electric motor, a power storage device, a control device, and a refrigerant circuit. The refrigerant circuit includes a compressor, an outdoor heat exchanger, an expansion valve, a first indoor heat exchanger, and a heating decompression valve. The heating decompression valve changes a passage resistance between the compressor and the outdoor heat exchanger. The control device increases the passage resistance by the heating decompression valve when the remaining capacity of the power storage device is equal to or larger than a predetermined value.Type: ApplicationFiled: December 13, 2018Publication date: June 27, 2019Inventors: Yoshiyuki Takeuchi, Isao Tsunoda, Osamu Ishida, Nobumasa Toyoshima, Ryoma Taguchi, Takahiro Ohmi
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Publication number: 20190193515Abstract: An electric vehicle includes an electric motor, a power storage device, a control device, and a refrigerant circuit. The refrigerant circuit includes a compressor, an outdoor heat exchanger, a first indoor heat exchanger, a first expansion valve, a second expansion valve, and a second indoor heat exchanger. The control device repeats an operation of performing the other of a first operation and a second operation after performing one thereof when a remaining capacity of a power storage device is equal to or larger than a predetermined value. In the first operation, the first expansion valve is not decompressed and the second expansion valve is decompressed. In the second operation, the first expansion valve is decompressed and the second expansion valve is not decompressed.Type: ApplicationFiled: December 12, 2018Publication date: June 27, 2019Inventors: Yoshiyuki Takeuchi, Ryoma Taguchi, Takahiro Ohmi, Osamu Ishida
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Patent number: 9688254Abstract: A stop control system for a vehicle is provided, which is capable of stably performing cranking for restarting an internal combustion engine and positively preventing the vehicle from moving by properly increasing a braking force of the vehicle, during an idle stop. In the stop control system for a vehicle according to the present invention, the engine 3 is cranked by the starter motor 6 using the power supplied from the battery 7, when restart conditions are satisfied (step 8 in FIG. 5). Further, the stop control system includes a hydraulic pump 55 driven by the power supplied from the battery 7, for increasing the braking force of the vehicle V. During a stop of the vehicle V, it is determined whether or not the braking force of the vehicle V needs to be increased (FIG. 6), and the hydraulic pump 55 is controlled according to a determination result.Type: GrantFiled: November 13, 2012Date of Patent: June 27, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Eisuke Horii, Yoshinari Sugita, Shinichi Arai, Syumpei Tahara, Tomohiro Watanabe, Hiroshi Yoneguchi, Masahiko Asakura, Ryuji Sato, Takahiro Ohmi, Hideo Takeuchi
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Patent number: 9463781Abstract: A stop control system for a vehicle, which is capable of positively preventing movement of a vehicle by positively increasing a braking force of the vehicle during an idle stop. In the stop control system for a vehicle of the present invention, the engine 3 is cranked by a starter motor 6 using power supplied from the battery 7 when restart conditions are satisfied during an idle stop (step 8 in FIG. 5). Further, the stop control system includes a hydraulic pump 55 driven by power supplied from the battery 7, for increasing the braking force of the vehicle V. During a stop of the vehicle V, when it is determined that the braking force of the vehicle V needs to be increased (F_BFREQ=1), the hydraulic pump 55 is activated. Further, if the restart conditions are satisfied during operation of the hydraulic pump 55, the cranking is inhibited to continue the operation of the hydraulic pump 55 (steps 6 to 9 in FIG. 5).Type: GrantFiled: November 13, 2012Date of Patent: October 11, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Eisuke Horii, Yoshinari Sugita, Shinichi Arai, Syumpei Tahara, Tomohiro Watanabe, Hiroshi Yoneguchi, Masahiko Asakura, Ryuji Sato, Takahiro Ohmi, Hideo Takeuchi
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Publication number: 20150307069Abstract: A stop control system for a vehicle is provided, which is capable of stably performing cranking for restarting an internal combustion engine and positively preventing the vehicle from moving by properly increasing a braking force of the vehicle, during an idle stop. In the stop control system for a vehicle according to the present invention, the engine 3 is cranked by the starter motor 6 using the power supplied from the battery 7, when restart conditions are satisfied (step 8 in FIG. 5). Further, the stop control system includes a hydraulic pump 55 driven by the power supplied from the battery 7, for increasing the braking force of the vehicle V. During a stop of the vehicle V, it is determined whether or not the braking force of the vehicle V needs to be increased (FIG. 6), and the hydraulic pump 55 is controlled according to a determination result.Type: ApplicationFiled: November 13, 2012Publication date: October 29, 2015Applicant: HONDA MOTOR CO., LTD.Inventors: Eisuke HORII, Yoshinari SUGITA, Shinichi ARAI, Syumpei TAHARA, Tomohiro WATANABE, Hiroshi YONEGUCHI, Masahiko ASAKURA, Ryuji SATO, Takahiro OHMI, Hideo TAKEUCHI
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Publication number: 20150298665Abstract: A stop control system for a vehicle, which is capable of positively preventing movement of a vehicle by positively increasing a braking force of the vehicle during an idle stop. In the stop control system for a vehicle of the present invention, the engine 3 is cranked by a starter motor 6 using power supplied from the battery 7 when restart conditions are satisfied during an idle stop (step 8 in FIG. 5). Further, the stop control system includes a hydraulic pump 55 driven by power supplied from the battery 7, for increasing the braking force of the vehicle V. During a stop of the vehicle V, when it is determined that the braking force of the vehicle V needs to be increased (F_BFREQ=1), the hydraulic pump 55 is activated. Further, if the restart conditions are satisfied during operation of the hydraulic pump 55, the cranking is inhibited to continue the operation of the hydraulic pump 55 (steps 6 to 9 in FIG. 5).Type: ApplicationFiled: November 13, 2012Publication date: October 22, 2015Applicant: HONDA MOTOR CO., LTD.Inventors: Eisuke HORII, Yoshinari SUGITA, Shinichi ARAI, Syumpei TAHARA, Tomohiro WATANABE, Hiroshi YONEGUCHI, Masahiko ASAKURA, Ryuji SATO, Takahiro OHMI, Hideo TAKEUCHI