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METHOD AND APPARATUS FOR CONTROLLING AN ELECTRIC MACHINE

机译:用于控制电机的方法和装置

摘要

The invention relates to a method for controlling an electrical machine (10) by means of an inverter (12), in particular for use in a motor vehicle, wherein the inverter (12) has a plurality of controllable circuit breakers (14) which are designed to convert a DC voltage from a voltage source (22), which is coupled to the circuit breakers (14), into an AC voltage for supplying electrical energy to the electrical machine (10), wherein the electrical machine (10) is then switched to a freewheeling mode (32) by opening all the circuit breakers (14) of the inverter (12), wherein a phase current of the electrical machine (10) is detected, wherein the electrical machine (10) is switched from the freewheeling mode (32) to a short-circuit mode (36) as a function of a comparison (34) of the phase current, or of a first variable which is derived from the phrase current, with a first reference value, wherein the circuit breakers (14) which are associated with a first potential of the voltage source (22) are closed in the short-circuit mode (32) and wherein the circuit breakers (14) which are associated with a second potential of the voltage source (22) are opened, and wherein the electrical machine (10) is switched from the short-circuit mode (36) to the freewheeling mode (32) as a function of a comparison (38) of the phrase current, or of a second variable which is derived from the phrase current, with a second reference value.
机译:用于控制逆变器( 12 )的电机的方法技术领域本发明涉及一种通过逆变器( 12 )控制电机( 10 )的方法,特别是用于机动车的逆变器( 10 )。 12 )具有多个可控断路器( 14 ),这些断路器用于转换来自电压源( 22 )的直流电压,与断路器( 14 )相连的交流电压用于向电机( 10 )供应电能,其中电机( 10 < / B>)然后通过断开逆变器( 12 )的所有断路器( 14 )切换到续流模式( 32 ) ,其中检测到电机( 10 )的相电流,其中电机( 10 )从续流模式( 32 >)的短路模式( 36 )取决于相电流或从短语中得出的第一个变量的比较( 34 )当前,第一次基准值,其中与电压源( 22 )的第一电势关联的断路器( 14 )在短路模式( 32 ),其中与电压源( 22 )的第二电势相关联的断路器( 14 )断开,其中电机( 10 )从短路模式( 36 )切换到续流模式( 32 )作为比较的函数(< B> 38 ),或者使用第二参考值从短语current导出的第二个变量。

著录项

  • 公开/公告号US2014361719A1

    专利类型

  • 公开/公告日2014-12-11

    原文格式PDF

  • 申请/专利权人 DANIEL RAICHLE;MARKUS MERTEN;

    申请/专利号US201214357448

  • 发明设计人 DANIEL RAICHLE;MARKUS MERTEN;

    申请日2012-09-13

  • 分类号H02P6/18;H02P6;H02P27/06;

  • 国家 US

  • 入库时间 2022-08-21 15:25:22

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