POWER SUPPLY SYSTEM
    62.
    发明申请

    公开(公告)号:US20220302737A1

    公开(公告)日:2022-09-22

    申请号:US17678024

    申请日:2022-02-23

    摘要: A power supply system includes: a first power circuit having a first battery and a first power line; a second power circuit having a second battery and a second power line; a voltage converter; a power converter; a first voltage acquisition unit which acquires a first closed circuit voltage lower limit CCVmin1 of the first battery; a second voltage acquisition unit which acquires a second closed circuit voltage lower limit CCVmin2 of the second battery; and a power control unit which operates the second power circuit based on a requested power, in which the power control unit isolates the second battery from the second power lines, in a case of a voltage difference between the first closed circuit voltage lower limit CCVmin1 and the second closed circuit voltage lower limit CCVmin2 becoming less than a first voltage threshold value A while output limitation of the second battery is being requested.

    POWER SUPPLY SYSTEM
    63.
    发明申请

    公开(公告)号:US20220302735A1

    公开(公告)日:2022-09-22

    申请号:US17678031

    申请日:2022-02-23

    发明人: Hiroki SAKAMOTO

    摘要: A power supply system includes: power circuits that connect first and second batteries to a load circuit; a power controller that controls output power of the first and second batteries; and an allowable output upper limit acquirer that acquires a first allowable output upper limit P1_lim of the first battery and a second allowable output upper limit P2_lim of the second battery. The power controller is configured to switch, based on battery temperatures T1 and T2, a battery output control mode between a first priority output mode in which the output power of the first battery is increase to the first allowable output upper limit P1_lim in preference to that of the second battery and a second priority output mode in which the output power of the second battery is increased to the second allowable output upper limit P2_lim in preference to that of the first battery.

    Method for determining a state-of-charge operating window of a battery

    公开(公告)号:US11440433B2

    公开(公告)日:2022-09-13

    申请号:US16954244

    申请日:2018-12-20

    IPC分类号: B60L58/13 B60L58/18

    摘要: The invention relates to a method (100) for determining an adjusted state-of-charge (SOC) operating window of a battery pack assembly in a vehicle. The method comprises the steps of determining (120) an energy throughput or an electrical current through put of the battery pack assembly; determining (130) a SOC operating window margin based on said determined energy throughput or electrical current through put of the battery pack assembly;adjusting (140) the SOC operating window in response to the determined SOC operating window margin.

    Battery system
    65.
    发明授权

    公开(公告)号:US11420533B2

    公开(公告)日:2022-08-23

    申请号:US17208279

    申请日:2021-03-22

    IPC分类号: B60L50/60 B60L58/18 H02M3/335

    摘要: A battery system for an electric vehicle, including: a high voltage (HV) battery subsystem including a battery cell stack with battery cells electrically connected between stack nodes; a low voltage (LV) battery subsystem including a LV battery and a supply node connectFed to the LV battery; a DC/DC converter with a primary coil in the HV battery subsystem and a secondary coil in the LV battery subsystem, wherein the primary coil is connected to one of the stack nodes via a switch. A threshold signal indicative of a voltage at the supply node may be generated in the LV battery subsystem and may be transmitted to the HV battery system. A state of the switch may be controlled based on the threshold signal.

    Systems and methods for monitoring and enhancing utilization of batteries for electric vehicles based on vehicle usage

    公开(公告)号:US11420532B2

    公开(公告)日:2022-08-23

    申请号:US15349205

    申请日:2016-11-11

    摘要: Methods and systems for monitoring and optimizing utilization of batteries for electric vehicles are described. Data of battery usage of electric vehicles are monitored using battery monitoring sensors at the electric vehicles for a plurality of users who share use of electric vehicles. Battery usage metrics are determined for the batteries of the electric vehicles based on the data of battery usage and determining user impact metrics based on measured quantities relating to driving of the electric vehicles for the plurality of users, the user impact metrics being indicative of degrees of driving severity placed on the vehicles associated with use habits of particular users. The battery usage metrics and the user impact metrics for the plurality of users are analyzed at a computer processing system to determine a particular user to assign to a particular electric vehicle in a given time period to counteract battery degradation of the battery in a particular electric vehicle, and a particular user is paired with the particular electric vehicle.

    Dual drive electric vehicle with unlimited range drive capabilities

    公开(公告)号:US11387668B2

    公开(公告)日:2022-07-12

    申请号:US17545856

    申请日:2021-12-08

    摘要: A system describing Unlimited Range Drive capabilities of electric vehicles using machine learning techniques, assisted by intelligent battery modules and high voltage continuous variable power plant, the intelligent battery and power plant modules work in harmony and continuously provide feedback to each other, causing a battery to recharge while the other is in use to drive, this charging/recharging process and dynamically switching battery in use is continued until physical life of batteries is exhausted approximately 10 to 15 years, dynamic coordination of modules with dynamic switching of batteries, achieves unlimited range drive capabilities which may exceed 1 million mile drive on a single high voltage battery charge, this platform can be implemented in larger chassis, light duty trucks, vans, heavy duty cargo tractor trailer, race cars, two/three wheelers and commercial public transportation buses, the system provides clean environment and reduces power drain from residential power grids.