专利名称：DRIVE SYSTEM, IN PARTICULAR FOR A
VEHICLE, AND METHOD FOR HEATING ADRIVE SYSTEM
发明人：BEULICH, Klaus申请号：EP17754097.8申请日：20170731公开号：EP3507129A1公开日：20190710
摘要：The invention relates to a drive system (10), in particular for a vehicle,comprising a fuel cell unit (12) for generating electric energy, a secondary battery (14)for storing electric energy, an electric machine (20) with windings (21, 22, 23), and aninverter (30) for actuating the electric machine (20). The inverter (30) is designed as a 3-level inverter and has multiple electronic switches (S1, S2, S3, S4, S5, S6, S7, S8, S9, S10,S12), diodes (D1, D2, D3, D4, D5, D6, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X12), a plus pole(37), a minus pole (35), and a neutral pole (36). The fuel cell unit (12) and the secondarybattery (14) are connected in series and are connected to the poles (35, 36, 37) of theinverter (30). The invention also relates to a method for heating a drive system (10)according to the invention, wherein the switches (S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12)of the inverter (30) are actuated such that a short-circuit current path is producedbetween the inverter (30) poles (35, 36, 37) to which the fuel cell unit (12) is connected.
申请人：Robert Bosch GmbH
地址：Postfach 30 02 20 70442 Stuttgart DE
国籍：DE
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