Motor control device
    3.
    发明授权

    公开(公告)号:US11827209B2

    公开(公告)日:2023-11-28

    申请号:US16962008

    申请日:2019-07-10

    申请人: HINO MOTORS, LTD.

    发明人: Hiroki Sakashita

    摘要: A motor control device includes an acquisition unit and a torque control unit that controls, by selectively using one of a first map and a second map, a motor torque defined in correspondence with a requested torque and an engine rotation speed in each of the first map and the second map. The torque control unit controls the motor torque using the first map when the battery temperature is less than a switch temperature lower than a limit start temperature at which the motor torque is limited, and controls the motor torque using the second map when the battery temperature is greater than or equal to the switch temperature and less than the limit start temperature. The second map includes a larger assist region than the first map. The assist region of the second map defines a smaller maximum torque than the assist region of the first map.

    OPERATING MODE CONTROL DEVICE
    5.
    发明申请

    公开(公告)号:US20220402371A1

    公开(公告)日:2022-12-22

    申请号:US17840042

    申请日:2022-06-14

    摘要: An operating mode control device includes a travel driving force information acquisition unit configured to acquire a time-series travel driving force when traveling on a travel route; a vehicle speed information acquisition unit configured to acquire a time-series vehicle speed when traveling on the travel route; a motor operation estimation unit configured to estimate a time-series torque and rotation speed of the motor on the basis of a time-series travel driving force and vehicle speed; an efficiency calculation unit configured to acquire a time-series efficiency value of each operating mode on the basis of the time-series torque and rotation speed and calculate a total efficiency value; an operating mode determination unit configured to determine the operating mode having the highest total efficiency value as a default operating mode; and an operation control unit configured to control an operation by the default operating mode.

    Fuel cell system
    6.
    发明授权

    公开(公告)号:US11411239B2

    公开(公告)日:2022-08-09

    申请号:US17103884

    申请日:2020-11-24

    摘要: A fuel cell system includes at least one pressure reducing valve connected to a downstream side of a hydrogen gas tank, a hydrogen gas flow path including a first flow path connected to a downstream side of the pressure reducing valve and a plurality of second flow paths connected to a downstream side of the first flow path and branched from the first flow path, a plurality of injector units, each of which is connected to each of the second flow paths, a plurality of fuel cell stacks, each of which is connected to each of the injector units, and a control unit controlling opening and closing of the injector units. The control unit sets valve closing periods of the injector units to periods deviating from each other such that at least one of the injector units is always opened when the fuel cell system satisfies a predetermined operating condition.

    TRANSPORT VEHICLE
    7.
    发明申请

    公开(公告)号:US20210402873A1

    公开(公告)日:2021-12-30

    申请号:US17228097

    申请日:2021-04-12

    IPC分类号: B60K15/07 B60K15/03

    摘要: A transport vehicle configured to run on electricity generated by a fuel cell includes: a body having a cargo space for freight; a chassis frame located below the body and supporting the body; and a tank unit including a plurality of tanks that stores fuel gas to be used for power generation by the fuel cell and a connecting portion connecting the tanks, the tank unit being located between the cargo space and the chassis frame.

    DRIVING ASSISTANCE DEVICE AND TRAFFIC SYSTEM

    公开(公告)号:US20210362716A1

    公开(公告)日:2021-11-25

    申请号:US17050733

    申请日:2019-04-23

    摘要: A driving assistance device includes a guide line detecting unit, a remaining distance acquiring unit, and a braking control unit. The guide line includes a base-point mark which is provided at a position which is separated a first distance from the scheduled stop position. The guide line detecting unit detects the base-point mark at a measurement position of a captured image and sets the detected position of the base-point mark at the measurement position of the captured image as the center of the base-point mark in an extending direction of the guide line when the base-point mark is detected at the measurement position of the captured image. The remaining distance acquiring unit acquires the remaining distance on the basis of the position of the base-point mark set by the guide line detecting unit.

    CONVOY TRAVEL SYSTEM
    9.
    发明申请

    公开(公告)号:US20210304618A1

    公开(公告)日:2021-09-30

    申请号:US17264216

    申请日:2019-07-12

    摘要: A convoy travel system includes a plurality of vehicles and is configured such that the plurality of vehicles form a convoy and travel. The plurality of vehicles include a preceding vehicle and following vehicles configured so as to follow the preceding vehicle by means of automatic driving. The preceding vehicle is equipped with a steering information acquisition unit configured so as to acquire steering information pertaining to steering of the preceding vehicle, and a transmission unit configured so as to transmit the steering information to the following vehicles. The following vehicles are equipped with a reception unit configured so as to receive the steering information, and an automatic driving control unit configured so as to begin a steering angle control for avoiding a collision with an obstruction when the steering information indicates the execution of emergency steering for avoiding a collision with the obstruction.

    CONVOY TRAVELING SYSTEM
    10.
    发明申请

    公开(公告)号:US20210240201A1

    公开(公告)日:2021-08-05

    申请号:US17049060

    申请日:2019-04-22

    摘要: A platooning system includes a vehicle control system installed in each of vehicles that include a manually-driven head vehicle. The vehicle control system controls a host vehicle such that the host vehicle follows a lead vehicle through wireless communication between the host vehicle and the lead vehicle. The vehicle control system is installed in the host vehicle and the lead vehicle. The vehicle control system includes a sensor that detects a state of the host vehicle, an actuator that adjusts a behavior of the host vehicle, and a controller that controls the host vehicle. The controller of the head vehicle physically notifies a driver of the host vehicle of a state of a subsequent vehicle by operating the actuator of the host vehicle when a state signal including information that indicates the state of the subsequent vehicle is received through the wireless communication.