Drive system for a hybrid or electric vehicle

    公开(公告)号:US11999242B2

    公开(公告)日:2024-06-04

    申请号:US17770880

    申请日:2020-10-23

    Abstract: A drive system for a hybrid or electric vehicle includes an electrical energy source; an electric machine, a switching device linked to the electric machine and selectively switchable between a first configuration, and a second configuration, an adjusting device linked to the electric machine and configured to vary its operating parameters, and a control unit. The first electrical configuration includes a first number of conductors in series by phase supplying a first driving torque with a first knee speed and a first no-load operation speed. The second electrical configuration includes a second number of conductors in series by phase supplying a second driving torque, lower than the first driving torque, and a second knee speed higher than the first knee speed. A ratio between the first no-load operation speed and the second knee speed is between 0.7 and 1.3.

    ELECTRIC MOTOR
    52.
    发明公开
    ELECTRIC MOTOR 审中-公开

    公开(公告)号:US20230299631A1

    公开(公告)日:2023-09-21

    申请号:US18006320

    申请日:2021-07-22

    CPC classification number: H02K3/28 H02K11/24

    Abstract: An electric motor includes a plurality of phases and a switching device. The phases extend between respective terminals and are divided into a plurality of distinct groups, in particular at least a first group and a second group. The switching device is coupled to the first group and is operable to switch an electrical configuration thereof. The second group of phases is instead configured to maintain its electrical configuration unchanged during the switching of the electrical configuration of the first group.

    Power supply system with protection against current variations

    公开(公告)号:US20220278524A1

    公开(公告)日:2022-09-01

    申请号:US17597832

    申请日:2020-07-24

    Abstract: A power supply system includes a power supply circuit, a sensor of the current flowing through a terminal of the power supply circuit and a protection circuit. The protection circuit includes a differentiator adapted to measure a slope of a current measurement signal and comprises a driving stage. The power supply circuit is configured to receive a disconnection signal and, alternatively, to electrically connect the internal components thereof to its terminal or electrically disconnect the internal components thereof from its terminal, as a function of the value of the disconnection signal.

    ELECTRONIC DEVICE TO CONTROL AN IGNITION COIL OF AN INTERNAL COMBUSTION ENGINE AND ELECTRONIC IGNITION SYSTEM THEREOF FOR DETECTING A MISFIRE IN THE INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20220120251A1

    公开(公告)日:2022-04-21

    申请号:US17429204

    申请日:2020-02-19

    Abstract: It is disclosed an electronic device to control an ignition coil of an internal combustion engine, comprising a high-voltage switch, a driving unit, a bias circuit and an integrating circuit. The high-voltage switch is connected in series with a primary winding of a coil. The driving unit is configured to control the closing and opening of the high-voltage switch. The integrating circuit is interposed between the bias circuit and a reference voltage. The integrating circuit comprises an integrating capacitor connected in series to the bias circuit and connected between the bias circuit and the reference voltage. The integrating capacitor is configured to maintain a substantially null charge during a phase of measurement of a ionization current as to measure a substantially null value of an integral of the ionization current, in the case of a misfire of the comburent-combustible mixture.

    AN ENDOTHERMIC/ELECTRIC HYBRID PROPULSION SYSTEM FOR A VEHICLE

    公开(公告)号:US20210229558A1

    公开(公告)日:2021-07-29

    申请号:US17257289

    申请日:2019-07-17

    Abstract: An endothermic/electric hybrid propulsion system for a vehicle comprises a first propulsion unit, of the electrical type, provided with at least a first electric machine (EM1) coupled to a transmission shaft, a second propulsion unit, of the hybrid type, provided with an output shaft and comprising at least one internal combustion engine (ICE) and at least one second electric machine (EM2) which can be selectively coupled together to provide torque to the output shaft in an independent or combined manner and a coupling member operatively interposed between the output shaft of the second propulsion unit and the transmission shaft of the first propulsion unit.

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