Method for Preparing the Start-Up of an Internal Combustion Engine With the Aid of a Belt-Driven Starter Generator
    1.
    发明申请
    Method for Preparing the Start-Up of an Internal Combustion Engine With the Aid of a Belt-Driven Starter Generator 审中-公开
    用带式起动发电机辅助内燃机起动的方法

    公开(公告)号:US20150051820A1

    公开(公告)日:2015-02-19

    申请号:US14383167

    申请日:2013-01-24

    IPC分类号: F02N11/08

    摘要: A method for preparing a start-up of an internal combustion engine with a belt-driven starter generator having a stator and rotor windings, the starter generator being operated so that its generated torque slowly increases over a period of more than two rotor winding-time constants. The stator winding is energized so that the generated torque slowly increases over a period of more than two rotor winding-time constants. The rotor winding is energized and, when a field current through the rotor winding is below a lower threshold value prior to the beginning of its energization, the stator winding is energized, before the field current is above an upper threshold value. The belt of the starter generator is pre-tensioned prior to the actual starting operation by activating the electric machine so that jolts, vibrations and noises, which occur during the start-up of the internal combustion engine with a starter generator, may be avoided.

    摘要翻译: 一种用于具有定子和转子绕组的带驱动起动器发电机来制备内燃机起动的方法,所述起动发电机的运行使得其产生的转矩在两个以上的转子绕组时间周期内缓慢增加 常数。 定子绕组被通电,使得所产生的转矩在多于两个转子绕组时间常数的时段内缓慢增加。 转子绕组通电,并且当通过转子绕组的励磁电流在其通电开始之前低于低阈值时,定子绕组在励磁电流高于上限阈值之前通电。 起动发电机的皮带在实际的起动操作之前通过启动电机而被预紧,从而可避免在具有起动发电机的内燃机起动期间发生的颠簸,振动和噪音。

    METHOD FOR OPERATING AN AT LEAST GENERATOR-OPERABLE ELECTRIC MOTOR AND MEANS FOR THE IMPLEMENTATION THEREOF

    公开(公告)号:US20170163025A1

    公开(公告)日:2017-06-08

    申请号:US15325792

    申请日:2015-07-14

    申请人: Robert Bosch GmbH

    发明人: Matthias Schmidt

    IPC分类号: H02H7/06 H02P9/10 H02P9/00

    摘要: A method for controlling a multi-phase electric machine, whose phase terminals in an active bridge rectifier are respectively connected, via controllable first current valves, to a first DC voltage terminal and via second current valves to a second DC voltage terminal. The method includes switching on the first current valves when an output voltage between the first DC voltage terminal and the second DC voltage terminal has exceeded an upper threshold value at an exceedance point in time, and shutting off the first current valves again only once the output voltage has subsequently fallen below a lower threshold value at a shortfall point in time. The first current valves are shut off again after the shortfall point in time individually, and each only when a respective indication value, which characterizes a current flow in the phase terminal associated with the respective current valve, exhibits a predetermined property.

    voltage surge protection for active rectifiers in the event of load shedding
    5.
    发明申请
    voltage surge protection for active rectifiers in the event of load shedding 有权
    负载脱落时有源整流器的电压浪涌保护

    公开(公告)号:US20160211740A1

    公开(公告)日:2016-07-21

    申请号:US14915075

    申请日:2014-07-28

    申请人: ROBERT BOSCH GMBH

    摘要: A rectifier module for an active bridge rectifier having two switching elements, connected in series between two end terminals, and between which a center tap is formed, and a control circuit including a monitoring unit, a synchronization unit, and a control unit, the monitoring unit detecting a measuring voltage and outputting a request signal when the measuring voltage exceeds an upper threshold value. The synchronization unit outputs a synchronization signal to a synchronization terminal as long as the monitoring unit outputs the request signal, and otherwise to monitor the synchronization terminal for a synchronization signal. The control unit switches one of the two switching elements into a conductive state at least in sections during an activation period of time, when the monitoring unit outputs the request signal and/or when the synchronization signal is detected and is optionally recognized as valid by the monitoring. Also described is an active bridge rectifier including corresponding rectifier modules, a generator array including such a bridge rectifier, a corresponding motor vehicle electrical system, an operating method, and an arrangement for the method.

    摘要翻译: 一种用于有源桥式整流器的整流器模块,其具有两个开关元件,串联连接在两个端子之间,并且在其间形成中心抽头,以及包括监视单元,同步单元和控制单元的控制电路, 当测量电压超过上限阈值时,单元检测测量电压并输出请求信号。 只要监视单元输出请求信号,同步单元就将同步信号输出到同步终端,否则监视同步信号的同步终端。 控制单元在激活期间至少部分地将两个开关元件中的一个切换为导通状态,当监视单元输出请求信号时,和/或当同步信号被检测到并被可选地识别为有效时 监控。 还描述了包括对应的整流器模块的有源桥式整流器,包括这种桥式整流器的发电机阵列,相应的机动车辆电气系统,操作方法和用于该方法的装置。