An ECU, which acts as a “electrical rotating machine controller”, controls driving of a motor unit having two winding sets. In the ECU, components having different heat dissipation properties are used as switching elements between two systems of inverters (electric power conversion circuit). For example, “component X” is used as switching elements of a first inverter acting as a “normal circuit”, and “component Y” which has superior heat conductivity is used as switching elements, different from the switching elements of the first inverter, of a second inverter acting as a “particular circuit”. As a result, the switching element (component Y) of the second inverter is more likely to have a longer lifespan than the switching element (component X) of the first inverter. Accordingly, the likelihood of both systems failing at the same time may be reduced.
Electrical rotating machine controller
2017-06-27
Patent
Elektronische Ressource
Englisch
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B62D MOTOR VEHICLES , Motorfahrzeuge / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
Rotating electrical machine and rotating electrical machine system
Europäisches Patentamt | 2019
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