PREDICTIVE INDUCTOR COOLING
    5.
    发明申请

    公开(公告)号:US20230088076A1

    公开(公告)日:2023-03-23

    申请号:US17482245

    申请日:2021-09-22

    摘要: An automotive propulsion system has a transmission including an output shaft, a variable voltage converter including an inductor disposed within a housing of the transmission such that transmission fluid within the housing contacts the inductor to cool the inductor, and a controller that maintains a magnitude of current through the inductor to less than a limit value that is defined by a speed associated with the output shaft and a switching frequency of the variable voltage converter.

    Automotive electric drive systems with interleaved variable voltage converters

    公开(公告)号:US10958204B1

    公开(公告)日:2021-03-23

    申请号:US16660465

    申请日:2019-10-22

    发明人: Baoming Ge Lihua Chen

    摘要: A bi-directional variable voltage converter transfers power between a traction battery and an electric machine inverter. The bi-directional variable voltage converter includes a capacitor, two power module phase legs, and an air-gapped transformer with three windings and no more than four terminals. A first of the windings defines a first terminal and a second terminal of the no more than four terminals. The first terminal is directly electrically connected with a positive terminal of the traction battery and the second terminal is directly electrically connected with a positive terminal of the capacitor and a junction between the second and third windings. A second of the windings defines a third terminal of the no more than four terminals directly electrically connected with one of the power module phase legs. A third of the windings defines a fourth terminal of the no more than four terminals directly electrically connected with the other of the power module phase legs.