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    Regenerative braking system for reducing fuel consumption
    2.
    发明授权
    Regenerative braking system for reducing fuel consumption 有权
    用于降低燃油消耗的再生制动系统

    公开(公告)号：US09481252B1

    公开(公告)日：2016-11-01

    申请号：US14724767

    申请日：2015-05-28

    Applicant: CATERPILLAR INC.

    Inventor： Baojun Si ,  Dustin C. Selvey ,  William J. Tate ,  Mary Jill Trumper ,  Alexander Cameron Crosman, III

    IPC: H02P3/14 ,  B60L7/20 ,  H02P27/04 ,  B60L7/06

    CPC classification number: B60L7/20 ,  B60L7/06 ,  B60L7/14 ,  B60L11/123 ,  B60L11/1861 ,  B60L15/007 ,  B60L15/2009 ,  B60L2210/30 ,  B60L2210/40 ,  H02P3/14 ,  H02P27/06

    Abstract: Systems and methods are disclosed for reducing engine fuel consumption during regenerative braking. According to certain embodiments, the regenerative braking system has an engine, a generator, a rectifier, a first inverter, a traction motor, and a reverse recovery unit. The generator is configured to be driven by the engine to produce AC electrical power. The rectifier is configured to receive AC electrical power from the generator and convert the AC power to DC power. The first inverter is configured to receive the DC power and convert the DC power to AC power. The traction motor is configured to be driven by the AC power in a traction mode, and to produce regenerated power when rotated in reverse in a regenerative braking mode. The reverse recovery unit has a second inverter and a filter. The second inverter is electrically connected in parallel with the rectifier and configured to communicate at least part of the regenerated power from the traction motor to the generator during the regenerative braking mode. The filter is electrically connected downstream of the second inverter and in parallel with the rectifier. The filter is configured to filter transient voltage generated by the second inverter during the regenerative braking mode.

    Abstract translation: 公开了用于在再生制动期间减少发动机燃料消耗的系统和方法。 根据某些实施例，再生制动系统具有发动机，发电机，整流器，第一逆变器，牵引电动机和反向恢复单元。 发电机构造成由发动机驱动以产生交流电力。 整流器被配置为从发电机接收AC电力并将AC电力转换成DC电力。 第一个反相器配置为接收直流电，并将直流电转换成交流电源。 牵引电动机被配置为在牵引模式下由交流电驱动，并且在再生制动模式下反向旋转时产生再生电力。 反向恢复单元具有第二反相器和滤波器。 第二逆变器与整流器并联电连接并且被配置为在再生制动模式期间将来自牵引电动机的再生功率的至少一部分传递到发电机。 滤波器电连接在第二反相器的下游并与整流器并联。 滤波器被配置为在再生制动模式期间过滤由第二逆变器产生的瞬态电压。

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