Patents by Inventor Tatsuya Imamura
Tatsuya Imamura 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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Publication number: 20250145142Abstract: A vehicle according to an embodiment of the present disclosure includes a transmission that is provided between a power source and drive wheels, and that is configured to switch a gear ratio manually by a user, and a sound generator that is configured to artificially generates a sound when the vehicle is traveling. The sound generator includes at least a processor. The processor is configured to execute at least one of raising a frequency of the sound the higher the gear ratio of the transmission is, and increasing a pressure of the sound the higher the gear ratio of the transmission is.Type: ApplicationFiled: October 18, 2024Publication date: May 8, 2025Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya IMAMURA, Yoichiro ISAMI, Taro MOTEKI
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Publication number: 20250145018Abstract: A battery electric vehicle includes an electric motor as a driving source. The battery electric vehicle includes: a driving operation member used to drive the battery electric vehicle; a pseudo shifting operation member that imitates an operation member used to perform a shifting operation of a manual transmission internal combustion engine vehicle; and a processor that controls the battery electric vehicle according to operation of the driving operation member. The processor is configured to execute, according to selection by a driver, a control mode in which an amount of operation input to the pseudo shifting operation member by the driver is associated with torque of the electric motor.Type: ApplicationFiled: October 28, 2024Publication date: May 8, 2025Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro ISAMI, Tatsuya IMAMURA, Kenji MIZUTANI, Tsuyoshi OKADA, Naoki YAMAMURO
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Publication number: 20250145005Abstract: A battery electric vehicle includes an electric motor as a driving source. The battery electric vehicle includes: a driving operation member that is used to drive the battery electric vehicle; a pseudo shifting operation member imitating an operation member that is used to perform a shifting operation of a manual transmission internal combustion engine vehicle; a processor that controls the battery electric vehicle according to operation of the driving operation member; and an in-vehicle battery that is charged with electrical energy generated when regenerative braking of the battery electric vehicle is applied. The processor executes, according to selection by a driver, a control mode in which operation of the pseudo shifting operation member is associated with torque of the electric motor.Type: ApplicationFiled: October 28, 2024Publication date: May 8, 2025Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro ISAMI, Tatsuya IMAMURA, Kenji MIZUTANI, Tsuyoshi OKADA, Naoki YAMAMURO
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Publication number: 20250145146Abstract: A battery electric vehicle includes: an electric motor configured to serve as a driving source for the battery electric vehicle; a driving operation member configured to be used to drive the battery electric vehicle; a pseudo shifting operation member that imitates an operation member configured to be used to perform a shifting operation of a manual transmission internal combustion engine vehicle; a transmission mounted between the electric motor and a drive wheel and configured to allow a driver to manually switch between a gear ratio for normal use and a low-speed gear ratio; and a control device configured to control a motion of the battery electric vehicle in response to an operation of the driving operation member according to an operation state of the pseudo shifting operation member and a gear ratio selected by the transmission.Type: ApplicationFiled: October 1, 2024Publication date: May 8, 2025Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya IMAMURA, Yoichiro ISAMI, Taro MOTEKI
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Publication number: 20250145023Abstract: A battery electric vehicle includes: a driving operation member configured to be used to drive the battery electric vehicle; and a pseudo shifting operation member that imitates an operation member configured to be used to perform a shifting operation of a manual transmission internal combustion engine vehicle. A controller that controls the battery electric vehicle is configured to execute, according to selection by a driver, a control mode in which an operation of the pseudo shifting operation member is associated with torque of the electric motor. The controller is further configured to impose, when in the control mode, a restriction on an operation the battery electric vehicle performs in response to the operation of the pseudo shifting operation member, the restriction being able to be removed or eased.Type: ApplicationFiled: October 29, 2024Publication date: May 8, 2025Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro ISAMI, Tatsuya IMAMURA, Kenji MIZUTANI, Tsuyoshi OKADA, Naoki YAMAMURO
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Patent number: 12263831Abstract: A drive force control system for a vehicle configured to accurately imitate a change in a drive force in a model vehicle. A drive torque simulator computes a virtual drive torque supposed to be delivered to drive wheels of the model vehicle in response to a manual operation to manipulate the vehicle, based on torque changing factors of a powertrain of the model vehicle. An actual torque calculator computes a target torque of a motor that is practically delivered to the drive wheels in the vehicle based on the virtual drive torque computed by the drive torque simulator, taking account of torque changing factors of the powertrain of the vehicle.Type: GrantFiled: May 3, 2024Date of Patent: April 1, 2025Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya Imamura, Yoichiro Isami, Yoshio Itou, Hiroyuki Amano, Akiko Nishimine, Hiroaki Ebuchi, Hiroaki Kodera
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Publication number: 20250091449Abstract: The controller of the electric vehicle is configured to control the torque of the electric motor using the MT vehicle model based on the operation amount of the accelerator pedal, the operation amount of the pseudo-clutch pedal, and the shift position of the pseudo-shifter. The electric vehicle also includes a pedal reaction force generator that generates a pedal reaction force in response to the operation of the pseudo-clutch pedal using by the operating of the reaction force actuator. The controller is configured to store the pedal reaction force characteristic simulating the characteristic of the pedal reaction force according to the operation of the clutch pedal. Then, the controller is configured to control the pedal reaction force output by the pedal reaction force generator in response to the operation of the pseudo-clutch pedal using the stored pedal reaction force characteristic.Type: ApplicationFiled: December 5, 2024Publication date: March 20, 2025Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro ISAMI, Yoshio ITOU, Hiroyuki AMANO, Tatsuya IMAMURA, Akiko NISHIMINE, Hiroaki EBUCHI, Hiroaki KODERA
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Publication number: 20240399888Abstract: The electric vehicle according to the present disclosure calculates motor torque using an MT vehicle model simulating an MT vehicle having a manual transmission and an internal combustion engine. In the first operation mode, an operation amount of a pseudo-clutch pedal and a shift position of a pseudo-gearshift are input to the MT vehicle model to reflect operation of the pseudo-clutch pedal and operation of the pseudo-gearshift in electric motor control. In the second operation mode where the operation of the pseudo-clutch pedal is not needed, an operation amount of a clutch pedal calculated by a driver model is input to the MT vehicle model instead of the operation amount of the pseudo-clutch pedal.Type: ApplicationFiled: August 9, 2024Publication date: December 5, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akiko Nishimine, Yoichiro Isami, Yoshio Itou, Hiroyuki Amano, Tatsuya Imamura, Hiroaki Ebuchi, Hiroaki Kodera
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Patent number: 12157364Abstract: A driving apparatus includes: a first power source; a fluid transmission device; a first output shaft for receiving a power transmitted from the fluid transmission device through a first power transmission path and outputting the power to drive wheels of a vehicle; a rotary electric machine connected to the first output shaft and/or the drive wheels, through a second power transmission path; and a control device. When the vehicle is stopped or running at an extremely low speed, with a rotary-electric-machine driving mode being established, the control device is configured, upon determination that a drive request amount is larger than a threshold amount value, to place a direct clutch of the fluid transmission device into an engaged state and to place the first power transmission path into a power transmittable state so as to cause the power of the first power source to be outputted to the first output shaft.Type: GrantFiled: June 15, 2022Date of Patent: December 3, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Koichi Okuda, Koji Takaira, Tatsuya Imamura, Yohei Habata
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Patent number: 12090990Abstract: It is determined whether fuel efficiency of a vehicle is improved by operating a first rotating machine to generate electricity to such an extent that an electrical path amount becomes a desired electrical path amount for controlling an operating point of an engine to a desired operating point and driving and operating a second rotating machine as a second power source, the electrical path amount being a magnitude of electric power in an electrical path through which the electric power is transferred between the first rotating machine and the second rotating machine. When the electronic control device determines that the fuel efficiency of the vehicle is improved, the first rotating machine is operated to generate electricity to such an extent that the electrical path amount becomes the desired electrical path amount and the second rotating machine is driven and operated as the second power source.Type: GrantFiled: April 20, 2022Date of Patent: September 17, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Koichi Okuda, Koji Takaira, Tatsuya Imamura, Yohei Habata
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Patent number: 12090861Abstract: The electric vehicle according to the present disclosure calculates motor torque using an MT vehicle model simulating an MT vehicle having a manual transmission and an internal combustion engine. In the first operation mode, an operation amount of a pseudo-clutch pedal and a shift position of a pseudo-gearshift are input to the MT vehicle model to reflect operation of the pseudo-clutch pedal and operation of the pseudo-gearshift in electric motor control. In the second operation mode where the operation of the pseudo-clutch pedal is not needed, an operation amount of a clutch pedal calculated by a driver model is input to the MT vehicle model instead of the operation amount of the pseudo-clutch pedal.Type: GrantFiled: February 9, 2024Date of Patent: September 17, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akiko Nishimine, Yoichiro Isami, Yoshio Itou, Hiroyuki Amano, Tatsuya Imamura, Hiroaki Ebuchi, Hiroaki Kodera
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Publication number: 20240300475Abstract: A drive force control system for a vehicle configured to accurately imitate a change in a drive force in a model vehicle. A drive torque simulator computes a virtual drive torque supposed to be delivered to drive wheels of the model vehicle in response to a manual operation to manipulate the vehicle, based on torque changing factors of a powertrain of the model vehicle. An actual torque calculator computes a target torque of a motor that is practically delivered to the drive wheels in the vehicle based on the virtual drive torque computed by the drive torque simulator, taking account of torque changing factors of the powertrain of the vehicle.Type: ApplicationFiled: May 3, 2024Publication date: September 12, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya IMAMURA, Yoichiro ISAMI, Yoshio ITOU, Hiroyuki AMANO, Akiko NISHIMINE, Hiroaki EBUCHI, Hiroaki KODERA
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Publication number: 20240278654Abstract: An electric vehicle includes a shift lever and a clutch pedal for simulating manual gear changes of a traditional vehicle equipped with an internal combustion engine and manual transmission, and includes a controller for controlling the operation of the electric vehicle. The driver operates the shift lever in a similar fashion to that of a traditional manual transmission shift lever, however the associated gear positions do not correspond to physical gears in a transmission but rather virtual gear stage modes that correspond to mapped torque characteristics with respect to the rotational speed of the electric motor. The clutch pedal is operated by the driver when the shift lever is operated. The controller calculates the virtual engine speed of the virtual engine based on the virtual gear stage mode selected by the shift lever and the operation amount of the clutch pedal, and displays the virtual engine speed on a display.Type: ApplicationFiled: April 29, 2024Publication date: August 22, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro ISAMI, Yoshio ITOU, Hiroyuki AMANO, Tatsuya IMAMURA, Akiko HISHIMINE, Hiroaki EBUCHI, Hiroaki KODERA
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Publication number: 20240278655Abstract: An electric vehicle includes a shift lever and a clutch pedal for simulating manual gear changes of a traditional vehicle equipped with an internal combustion engine and manual transmission, and includes a controller for controlling the operation of the electric vehicle. The driver operates the shift lever in a similar fashion to that of a traditional manual transmission shift lever, however the associated gear positions do not correspond to physical gears in a transmission but rather virtual gear stage modes that correspond to mapped torque characteristics with respect to the rotational speed of the electric motor. The clutch pedal is operated by the driver when the shift lever is operated. The controller calculates the virtual engine speed of the virtual engine based on the virtual gear stage mode selected by the shift lever and the operation amount of the clutch pedal, and displays the virtual engine speed on a display.Type: ApplicationFiled: April 29, 2024Publication date: August 22, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro Isami, Yoshio Itou, Hiroyuki Amano, Tatsuya Imamura, Akiko Nishimine, Hiroaki Ebuchi, Hiroaki Kodera
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Publication number: 20240278656Abstract: An electric vehicle includes a shift lever and a clutch pedal for simulating manual gear changes of a traditional vehicle equipped with an internal combustion engine and manual transmission, and includes a controller for controlling the operation of the electric vehicle. The driver operates the shift lever in a similar fashion to that of a traditional manual transmission shift lever, however the associated gear positions do not correspond to physical gears in a transmission but rather virtual gear stage modes that correspond to mapped torque characteristics with respect to the rotational speed of the electric motor. The clutch pedal is operated by the driver when the shift lever is operated. The controller calculates the virtual engine speed of the virtual engine based on the virtual gear stage mode selected by the shift lever and the operation amount of the clutch pedal, and displays the virtual engine speed on a display.Type: ApplicationFiled: April 30, 2024Publication date: August 22, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro ISAMI, Yoshio ITOU, Hiroyuki AMANO, Tatsuya IMAMURA, Akiko NISHIMINE, Hiroaki EBUCHI, Hiroaki KODERA
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Patent number: 12059957Abstract: A vehicle driving apparatus includes: an engine; first and second rotary electric machines; a fluid transmission device including an input-side rotary element to which the engine and the first rotary electric machine are connected; and a control device configured to control an operation point of the engine by adjusting an electrical path amount in an electrical path between the first and second rotary electric machines. When a certain running mode is established, the control device is configured to correct the electrical path amount to an increased electrical path amount while maintaining an power of the engine requested by an operation of a vehicle driver, and to drive the second rotary electric machine, while controlling an output torque of the first rotary electric machine such that the electrical path amount transferred from the first rotary electric machine to the second rotary electric machine becomes the increased electrical path amount.Type: GrantFiled: May 26, 2022Date of Patent: August 13, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Koichi Okuda, Tatsuya Imamura, Yohei Habata, Koji Takaira
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Publication number: 20240246425Abstract: The controller of the electric vehicle is configured to control the torque of the electric motor using the MT vehicle model based on the operation amount of the accelerator pedal, the operation amount of the pseudo-clutch pedal, and the shift position of the pseudo-shifter. The electric vehicle also includes a pedal reaction force generator that generates a pedal reaction force in response to the operation of the pseudo-clutch pedal using by the operating of the reaction force actuator. The controller is configured to store the pedal reaction force characteristic simulating the characteristic of the pedal reaction force according to the operation of the clutch pedal. Then, the controller is configured to control the pedal reaction force output by the pedal reaction force generator in response to the operation of the pseudo-clutch pedal using the stored pedal reaction force characteristic.Type: ApplicationFiled: April 4, 2024Publication date: July 25, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro ISAMI, Yoshio Itou, Hiroyuki Amano, Tatsuya Imamura, Akiko Nishimine, Hiroaki Ebuchi, Hiroaki Kodera
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Publication number: 20240181894Abstract: The electric vehicle according to the present disclosure calculates motor torque using an MT vehicle model simulating an MT vehicle having a manual transmission and an internal combustion engine. In the first operation mode, an operation amount of a pseudo-clutch pedal and a shift position of a pseudo-gearshift are input to the MT vehicle model to reflect operation of the pseudo-clutch pedal and operation of the pseudo-gearshift in electric motor control. In the second operation mode where the operation of the pseudo-clutch pedal is not needed, an operation amount of a clutch pedal calculated by a driver model is input to the MT vehicle model instead of the operation amount of the pseudo-clutch pedal.Type: ApplicationFiled: February 9, 2024Publication date: June 6, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akiko NISHIMINE, Yoichiro Isami, Yoshio Itou, Hiroyuki Amano, Tatsuya Imamura, Hiroaki Ebuchi, Hiroaki Kodera
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Patent number: 11999243Abstract: An electric vehicle includes a shift lever and a clutch pedal for simulating manual gear changes of a traditional vehicle equipped with an internal combustion engine and manual transmission, and includes a controller for controlling the operation of the electric vehicle. The driver operates the shift lever in a similar fashion to that of a traditional manual transmission shift lever, however the associated gear positions do not correspond to physical gears in a transmission but rather virtual gear stage modes that correspond to mapped torque characteristics with respect to the rotational speed of the electric motor. The clutch pedal is operated by the driver when the shift lever is operated. The controller calculates the virtual engine speed of the virtual engine based on the virtual gear stage mode selected by the shift lever and the operation amount of the clutch pedal, and displays the virtual engine speed on a display.Type: GrantFiled: June 21, 2021Date of Patent: June 4, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichiro Isami, Yoshio Itou, Hiroyuki Amano, Tatsuya Imamura, Akiko Nishimine, Hiroaki Ebuchi, Hiroaki Kodera
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Patent number: 11993250Abstract: A drive force control system for a vehicle configured to accurately imitate a change in a drive force in a model vehicle. A drive torque simulator computes a virtual drive torque supposed to be delivered to drive wheels of the model vehicle in response to a manual operation to manipulate the vehicle, based on torque changing factors of a powertrain of the model vehicle. An actual torque calculator computes a target torque of a motor that is practically delivered to the drive wheels in the vehicle based on the virtual drive torque computed by the drive torque simulator, taking account of torque changing factors of the powertrain of the vehicle.Type: GrantFiled: July 9, 2021Date of Patent: May 28, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya Imamura, Yoichiro Isami, Yoshio Itou, Hiroyuki Amano, Akiko Nishimine, Hiroaki Ebuchi, Hiroaki Kodera