Patents by Inventor Takuya Itoh
Takuya Itoh 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: 12275317Abstract: A power control device for controlling a power supply system, the power control device including a DCDC converter for supplying power of a battery to a load, and an alternator connected in parallel with a DCDC converter for supplying generated power to the load, the power control device including: a monitoring unit for monitoring a current output from DCDC converter to the load; and a control unit for controlling an operation of DCDC converter and the alternator, wherein the control unit controls the alternator to generate electric power when an output current of DCDC converter monitored by the monitoring unit is equal to or greater than a first threshold value, and controls the alternator not to generate electric power when an output current of DCDC converter monitored by the monitoring unit is equal to or less than a second threshold value, which is smaller than the first threshold value.Type: GrantFiled: August 21, 2023Date of Patent: April 15, 2025Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takuya Itoh
-
Publication number: 20240198823Abstract: A power control device for controlling a power supply system, the power control device including a DCDC converter for supplying power of a battery to a load, and an alternator connected in parallel with a DCDC converter for supplying generated power to the load, the power control device including: a monitoring unit for monitoring a current output from DCDC converter to the load; and a control unit for controlling an operation of DCDC converter and the alternator, wherein the control unit controls the alternator to generate electric power when an output current of DCDC converter monitored by the monitoring unit is equal to or greater than a first threshold value, and controls the alternator not to generate electric power when an output current of DCDC converter monitored by the monitoring unit is equal to or less than a second threshold value, which is smaller than the first threshold value.Type: ApplicationFiled: August 21, 2023Publication date: June 20, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takuya ITOH
-
Patent number: 11901146Abstract: A relay drive control device is configured to control drive of a relay for connecting a battery mounted on a vehicle and an external power supply. The relay drive control device includes a controller configured to, when driving the relay, supply an output voltage of the battery to the relay after increasing the output voltage to a voltage value at which the relay is drivable.Type: GrantFiled: January 26, 2023Date of Patent: February 13, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiro Narematsu, Akira Umemoto, Takuya Itoh, Yasuyuki Morishita, Yu Shimizu, Fumiyoshi Kuribara, Ippei Takesue, Daiki Takayama, Tomoya Aoki, Daisuke Kamikihara
-
Publication number: 20230420971Abstract: An electric power source control device includes an acquisition unit that acquires a charging/discharging current of a low-voltage battery, a detection unit that detects a predetermined operation executed with respect to a high-voltage battery, and a determining unit that determines presence/absence of an abnormality with respect to a connection state of the low-voltage battery, based on the charging/discharging current. When the predetermined operation is detected, the determining unit determines whether a state in which the charging/discharging current is no greater than a first threshold value continues for a first duration of time, controls an electric power converter when the state continues for the first duration of time, and further determines whether the state continues for a second duration of time longer than the first duration of time, and determines that the connection state of the low-voltage battery is abnormal when the state continues for the second duration of time.Type: ApplicationFiled: April 13, 2023Publication date: December 28, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takuya ITOH
-
Publication number: 20230298837Abstract: A relay drive control device is configured to control drive of a relay for connecting a battery mounted on a vehicle and an external power supply. The relay drive control device includes a controller configured to, when driving the relay, supply an output voltage of the battery to the relay after increasing the output voltage to a voltage value at which the relay is drivable.Type: ApplicationFiled: January 26, 2023Publication date: September 21, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiro NAREMATSU, Akira UMEMOTO, Takuya ITOH, Yasuyuki MORISHITA, Yu SHIMIZU, Fumiyoshi KURIBARA, Ippei TAKESUE, Daiki TAKAYAMA, Tomoya AOKI, Daisuke KAMIKIHARA
-
Patent number: 11721999Abstract: A charging control device includes: a determination section configured to make a determination as to whether an auxiliary device battery that supplies electric power to auxiliary devices of a vehicle is within a predetermined first temperature range; and a control section configured to, in a case in which the auxiliary device battery is within the first temperature range, cause a charging section to charge the auxiliary device battery.Type: GrantFiled: June 9, 2022Date of Patent: August 8, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru Ono, Akira Umemoto, Takuya Itoh, Tomoyuki Kato, Makoto Fujii
-
Patent number: 11458957Abstract: A vehicle surrounding display apparatus comprises a display control means for displaying images, each of which corresponding to each of a plurality of display modes on a display screen. The display control means, when at a first mode, generates a first bird's-eye view image of a vehicle and a first surrounding region thereof seen from a bird's-eye view to display this image in a first display area with a fixed size on the display screen and generates a first another image to display this image in a second display area with a fixed size on the display screen, and when at a second mode, generates a second bird's-eye view image of a vehicle and a second surrounding region thereof wider than the first surrounding region to display this image in the first display area and generates a second another image to display this image in the second display area.Type: GrantFiled: July 2, 2018Date of Patent: October 4, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CorporationInventors: Yamato Yorifuji, Kohei Maejima, Takuya Itoh, Eriko Yamazaki, Kouei Kiyo, Yukiko Hatakeyama
-
Publication number: 20220302741Abstract: A charging control device includes: a determination section configured to make a determination as to whether an auxiliary device battery that supplies electric power to auxiliary devices of a vehicle is within a predetermined first temperature range; and a control section configured to, in a case in which the auxiliary device battery is within the first temperature range, cause a charging section to charge the auxiliary device battery.Type: ApplicationFiled: June 9, 2022Publication date: September 22, 2022Inventors: Toru ONO, Akira UMEMOTO, Takuya ITOH, Tomoyuki KATO, Makoto FUJII
-
Patent number: 11411426Abstract: A charging control device includes: a determination section configured to make a determination as to whether an auxiliary device battery that supplies electric power to auxiliary devices of a vehicle is within a predetermined first temperature range; and a control section configured to, in a case in which the auxiliary device battery is within the first temperature range, cause a charging section to charge the auxiliary device battery.Type: GrantFiled: December 27, 2019Date of Patent: August 9, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru Ono, Akira Umemoto, Takuya Itoh, Tomoyuki Kato, Makoto Fujii
-
Patent number: 11325549Abstract: There is provided an arbitration device that arbitrates operation requests from a plurality of first power loads in a vehicle, the arbitration device including: a reception section; a memory section; a calculation section that calculates a total power consumption combining the first power consumption and the second power consumption; and a control section at which priorities of the plurality of first power loads are specified, when the total power consumption exceeds a threshold, the control section selecting which of the first power loads to approve based on the priorities and causing each operating first power load that is not approved to pause operation, and, when the total power consumption is less than or equal to the threshold, the control section allowing each operating first power load to continue operation.Type: GrantFiled: December 20, 2019Date of Patent: May 10, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru Ono, Akira Umemoto, Takuya Itoh, Tomoyuki Kato, Makoto Fujii
-
Publication number: 20200262310Abstract: A charging control device includes: a determination section configured to make a determination as to whether an auxiliary device battery that supplies electric power to auxiliary devices of a vehicle is within a predetermined first temperature range; and a control section configured to, in a case in which the auxiliary device battery is within the first temperature range, cause a charging section to charge the auxiliary device battery.Type: ApplicationFiled: December 27, 2019Publication date: August 20, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru ONO, Akira UMEMOTO, Takuya ITOH, Tomoyuki KATO, Makoto FUJII
-
Publication number: 20200254946Abstract: There is provided an arbitration device that arbitrates operation requests from a plurality of first power loads in a vehicle, the arbitration device including: a reception section; a memory section; a calculation section that calculates a total power consumption combining the first power consumption and the second power consumption; and a control section at which priorities of the plurality of first power loads are specified, when the total power consumption exceeds a threshold, the control section selecting which of the first power loads to approve based on the priorities and causing each operating first power load that is not approved to pause operation, and, when the total power consumption is less than or equal to the threshold, the control section allowing each operating first power load to continue operation.Type: ApplicationFiled: December 20, 2019Publication date: August 13, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru ONO, Akira UMEMOTO, Takuya ITOH, Tomoyuki KATO, Makoto FUJII
-
Publication number: 20190001968Abstract: A vehicle surrounding display apparatus comprises a display control means for displaying images, each of which corresponding to each of a plurality of display modes on a display screen. The display control means, when at a first mode, generates a first bird's-eye view image of a vehicle and a first surrounding region thereof seen from a bird's-eye view to display this image in a first display area with a fixed size on the display screen and generates a first another image to display this image in a second display area with a fixed size on the display screen, and when at a second mode, generates a second bird's-eye view image of a vehicle and a second surrounding region thereof wider than the first surrounding region to display this image in the first display area and generates a second another image to display this image in the second display area.Type: ApplicationFiled: July 2, 2018Publication date: January 3, 2019Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO TEN LimitedInventors: Yamato YORIFUJI, Kohei MAEJIMA, Takuya ITOH, Eriko YAMAZAKI, Kouei KIYO, Yukiko HATAKEYAMA
-
Patent number: 9174674Abstract: The present invention relates to a parking assist apparatus 10 used for a vehicle which has a four-wheel steering mode in which front wheels and rear wheels can be steered independently, comprising: traveling path calculation means for calculating a traveling path for guiding the vehicle to a target position; and assist means for assisting traveling of the vehicle to the target position, based on the traveling path calculated by the traveling path calculation means. In the four-wheel steering mode, the traveling path calculated by the traveling path calculation means includes a traveling path in which the front wheels and the rear wheels are steered in reverse directions, and said traveling path includes a section in which a constant point, which is an intersection of a center line of the vehicle in a back-and-forth direction and a line perpendicular to the center line from a turning center, creates a trajectory of a clothoid curve.Type: GrantFiled: July 19, 2010Date of Patent: November 3, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiko Endo, Yasushi Makino, Yukiko Kawabata, Takuya Itoh, Atsuko Nakanishi
-
Publication number: 20150301879Abstract: In a serial communication circuit, a data extracting section extracts reception data based on a reception clock signal with maximum speed. A pattern determining section compares a reception bit pattern of the reception data corresponding to a characteristic pattern and each of a plurality of detection bit patterns for the characteristic pattern, and indicates when the reception bit pattern matches one of the detection bit patterns. A periodicity determining section determines a period when the reception bit pattern matches the detection bit pattern, based on the pattern match indication, detects that the detection bit pattern emerges continuously in a stream of the reception data every the period, and determines a generation difference between transmission and reception speeds based on the detection bit pattern. A transmission rate setting section determines the transmission speed of a connected device transmitting the reception data based on the generation difference and maximum speed.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Inventor: Takuya ITOH
-
Patent number: 9139132Abstract: A vehicle approach informing device includes: an informing sound output unit configured to output informing sound for informing a pedestrian outside a vehicle that the vehicle is approaching when a predetermined condition is satisfied; a stop operation unit configured to receive an operation for stopping the output of the informing sound by the informing sound output unit; and an information output unit configured to output predetermined information to a driver. When the predetermined condition is satisfied and output of the informing sound by the informing sound output unit is stopped by an operation of the stop operation unit, the information output unit outputs information to the driver, the information indicating that the informing sound is not outputted.Type: GrantFiled: January 30, 2014Date of Patent: September 22, 2015Assignee: FUJI JUKOGYO KABUSHIKI KAISHAInventors: Hiroaki Kanaya, Takuya Itoh
-
Patent number: 9100168Abstract: In a serial communication circuit, a data extracting section extracts reception data based on a reception clock signal with maximum speed. A pattern determining section compares a reception bit pattern of the reception data corresponding to a characteristic pattern and each of a plurality of detection bit patterns for the characteristic pattern, and indicates when the reception bit pattern matches one of the detection bit patterns. A periodicity determining section determines a period when the reception bit pattern matches the detection bit pattern, based on the pattern match indication, detects that the detection bit pattern emerges continuously in a stream of the reception data every the period, and determines a generation difference between transmission and reception speeds based on the detection bit pattern. A transmission rate setting section determines the transmission speed of a connected device transmitting the reception data based on the generation difference and maximum speed.Type: GrantFiled: February 7, 2012Date of Patent: August 4, 2015Assignee: RENESAS ELECTRONICS CORPORATIONInventor: Takuya Itoh
-
Publication number: 20140225726Abstract: A vehicle approach informing device includes: an informing sound output unit configured to output informing sound for informing a pedestrian outside a vehicle that the vehicle is approaching when a predetermined condition is satisfied; a stop operation unit configured to receive an operation for stopping the output of the informing sound by the informing sound output unit; and an information output unit configured to output predetermined information to a driver. When the predetermined condition is satisfied and output of the informing sound by the informing sound output unit is stopped by an operation of the stop operation unit, the information output unit outputs information to the driver, the information indicating that the informing sound is not outputted.Type: ApplicationFiled: January 30, 2014Publication date: August 14, 2014Applicant: Fuji Jukogyo Kabushiki KaishaInventors: Hiroaki KANAYA, Takuya ITOH
-
Publication number: 20120201313Abstract: In a serial communication circuit, a data extracting section extracts reception data based on a reception clock signal with maximum speed. A pattern determining section compares a reception bit pattern of the reception data corresponding to a characteristic pattern and each of a plurality of detection bit patterns for the characteristic pattern, and indicates when the reception bit pattern matches one of the detection bit patterns. A periodicity determining section determines a period when the reception bit pattern matches the detection bit pattern, based on the pattern match indication, detects that the detection bit pattern emerges continuously in a stream of the reception data every the period, and determines a generation difference between transmission and reception speeds based on the detection bit pattern. A transmission rate setting section determines the transmission speed of a connected device transmitting the reception data based on the generation difference and maximum speed.Type: ApplicationFiled: February 7, 2012Publication date: August 9, 2012Applicant: RENESAS ELECTRONICS CORPORATIONInventor: Takuya ITOH
-
Publication number: 20100286872Abstract: The present invention relates to a parking assist apparatus 10 used for a vehicle which has a four-wheel steering mode in which front wheels and rear wheels can be steered independently, comprising: traveling path calculation means for calculating a traveling path for guiding the vehicle to a target position; and assist means for assisting traveling of the vehicle to the target position, based on the traveling path calculated by the traveling path calculation means. In the four-wheel steering mode, the traveling path calculated by the traveling path calculation means includes a traveling path in which the front wheels and the rear wheels are steered in reverse directions, and said traveling path includes a section in which a constant point, which is an intersection of a center line of the vehicle in a back-and-forth direction and a line perpendicular to the center line from a turning center, creates a trajectory of a clothoid curve.Type: ApplicationFiled: July 19, 2010Publication date: November 11, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiko ENDO, Yasushi Makino, Yukiko Kawabata, Takuya Itoh, Atsuko Nakanishi