Patents by Inventor Hiroto Kusaka
Hiroto Kusaka 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).
-
Publication number: 20240072615Abstract: A drive unit includes: a transaxle case that houses a motor, a speed reducer, and a differential mechanism; a power control unit that controls the motor; and a noise filter electrically connected to the motor via the power control unit, the power control unit being integrated with the transaxle case, the motor, the speed reducer, and the differential mechanism being disposed on a same axis inside the transaxle case. Further, the power control unit is separate from the noise filter, and the noise filter is integrated with the transaxle case in a state in which at least a part of the noise filter is disposed in space between the power control unit and the motor.Type: ApplicationFiled: July 13, 2023Publication date: February 29, 2024Inventor: Hiroto KUSAKA
-
Publication number: 20230287973Abstract: An oil cooler for cooling an oil with a cooling water, the oil being for lubricating a transaxle in a state of being attached to the case for accommodating the transaxle, includes: an oil inlet opening on a mounting surface attached to the case; an oil outlet opening on the mounting surface; a first opening, which is an opening on the mounting surface, for cooling water; and a second opening, which is an opening on a portion other than the mounting surface, for cooling water. Further, a heat exchange is performed between the oil flowing through an oil passage connecting the oil inlet and the oil outlet and the cooling water flowing through a water passage connecting the first opening and the second opening.Type: ApplicationFiled: January 9, 2023Publication date: September 14, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoki MARUKAWA, Hiroto KUSAKA
-
Publication number: 20230192066Abstract: A vehicle control device for a vehicle includes an engine; and a power converter, so that the vehicle travels by selectively executing one of a first traveling mode, a second traveling mode, and a third traveling mode in which the vehicle travels by a torque of both the engine and the rotation electric machine. Further, in a case where an air pressure around the vehicle and a system voltage are in a predetermined area of a preset map indicating a relationship between the air pressure and the system voltage, the vehicle control device is configured to reduce a switching speed of a switching element of the power converter to be lower than a normal speed, and cause the engine to operate, limit a torque of the rotation electric machine, and execute the third traveling mode.Type: ApplicationFiled: December 7, 2022Publication date: June 22, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroto KUSAKA
-
Patent number: 11247573Abstract: A power unit of an electric vehicle may be connected to a main battery, an AC inlet, and a DC inlet. The power unit may include a battery connector to which a battery power cable is connected, an AC inlet connector to which an AC inlet power cable is connected, and a DC inlet connector to which a DC inlet power cable is connected. The battery connector may be closer to the main battery than a center of the power unit is to the main battery. The AC inlet connector may be closer to the AC inlet than the center of the power unit is to the AC inlet. The DC inlet connector may be closer to the DC inlet than the center of the power unit is to the DC inlet.Type: GrantFiled: December 2, 2019Date of Patent: February 15, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenshi Yamanaka, Hiroto Kusaka
-
Publication number: 20200207220Abstract: A power unit of an electric vehicle may be connected to a main battery, an AC inlet, and a DC inlet. The power unit may include a battery connector to which a battery power cable is connected, an AC inlet connector to which an AC inlet power cable is connected, and a DC inlet connector to which a DC inlet power cable is connected. The battery connector may be closer to the main battery than a center of the power unit is to the main battery. The AC inlet connector may be closer to the AC inlet than the center of the power unit is to the AC inlet. The DC inlet connector may be closer to the DC inlet than the center of the power unit is to the DC inlet.Type: ApplicationFiled: December 2, 2019Publication date: July 2, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenshi YAMANAKA, Hiroto KUSAKA
-
Publication number: 20200207200Abstract: Electrical equipment disclosed herein may include: a case; a partition plate provided in the case, the partition plate including a first surface, a second surface located opposite to the first surface, and a through hole; a first heat generating member attached to the first surface of the partition plate; and a second heat generating member attached to the second surface of the partition plate, wherein the first heat generating member may seal the through hole from a first surface side and the second heat generating member may seal the through hole from a second surface side, and the first heat generating member, the second heat generating member, and the through hole may configure a coolant passage in which a liquid coolant flows.Type: ApplicationFiled: November 27, 2019Publication date: July 2, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenshi YAMANAKA, Hiroto KUSAKA
-
Patent number: 9728488Abstract: An onboard electronic device includes: an element that generates heat; a member that is provided between the element and a coolant cooling the element, and differs in thermal expansion coefficient from the element; an element temperature sensor that detects the temperature of the element; a coolant temperature sensor that detects the temperature of the coolant; and a controller that controls operation of the element such that the temperature of the element allowed when the temperature of the coolant is a first temperature is lower than the temperature of the element allowed when the temperature of the coolant is a second temperature that is higher than the first temperature.Type: GrantFiled: October 20, 2014Date of Patent: August 8, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroto Kusaka
-
Publication number: 20160254212Abstract: An onboard electronic device includes: an element that generates heat; a member that is provided between the element and a coolant cooling the element, and differs in thermal expansion coefficient from the element; an element temperature sensor that detects the temperature of the element; a coolant temperature sensor that detects the temperature of the coolant; and a controller that controls operation of the element such that the temperature of the element allowed when the temperature of the coolant is a first temperature is lower than the temperature of the element allowed when the temperature of the coolant is a second temperature that is higher than the first temperature.Type: ApplicationFiled: October 20, 2014Publication date: September 1, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroto KUSAKA
-
Publication number: 20160229293Abstract: An electrically driven vehicle includes a battery, front and rear motors, front and rear inverters, and a distributor. The front motor and the front inverter are arranged in a front region of the vehicle. The front inverter is configured to convert battery electric power into an alternating-current electric power, and supply the alternating-current electric power to the front motor. The rear motor and the rear inverter are arranged in a rear region of the vehicle. The rear inverter is configured to convert battery electric power into an alternating-current electric power, and supply the alternating-current electric power to the rear motor. The distributor is configured to distribute the electric power of the battery to the front inverter and the rear inverter. One of the rear inverter and another device that is attached to and removed from the vehicle together with the rear inverter is provided with the distributor.Type: ApplicationFiled: September 17, 2014Publication date: August 11, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke SEO, Hiroto KUSAKA
-
Patent number: 8912645Abstract: A semiconductor element cooling structure includes a side wall provided on a downstream side of flow of cooling air in a cooling air passage, a plurality of cooling fins forming cooling air branch passages, and a plurality of cooling fins forming cooling air branch passages. The cooling fins each have an end portion at a tip extending toward the cooling air passage. A virtual line obtained by connecting the end portions of the plurality of cooling fins and a virtual line obtained by connecting the end portions of the plurality of cooling fins each have a gradient with respect to a direction of the flow of the cooling air in the cooling air passage which is greater on an upstream side of the flow of the cooling air in the cooling air passage than on the downstream side thereof.Type: GrantFiled: June 15, 2011Date of Patent: December 16, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiroto Kusaka
-
Publication number: 20140110834Abstract: A semiconductor element cooling structure includes a side wall provided on a downstream side of flow of cooling air in a cooling air passage, a plurality of cooling fins forming cooling air branch passages, and a plurality of cooling fins forming cooling air branch passages. The cooling fins each have an end portion at a tip extending toward the cooling air passage. A virtual line obtained by connecting the end portions of the plurality of cooling fins and a virtual line obtained by connecting the end portions of the plurality of cooling fins each have a gradient with respect to a direction of the flow of the cooling air in the cooling air passage which is greater on an upstream side of the flow of the cooling air in the cooling air passage than on the downstream side thereof.Type: ApplicationFiled: June 15, 2011Publication date: April 24, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroto Kusaka
-
Publication number: 20140069615Abstract: A cooler includes: a housing in a form of a frame including a first opening and a second opening opposite to each other; a first radiator including a first substrate joined to the housing—to close the first opening, and a first heat radiation unit provided on the first substrate; and a second radiator including a second substrate joined to the housing to close the second opening, and a second heat radiation unit provided on the second substrate, the first heat radiation unit—having a plurality of first fins, the second heat radiation unit having a plurality of second fins, the first fins each abutting against a tip of at least one second fin.Type: ApplicationFiled: May 12, 2011Publication date: March 13, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroto Kusaka