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|1. (WO2018088463) ROTARY ELECTRIC MACHINE CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE USING SAME|
|Title:||ROTARY ELECTRIC MACHINE CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE USING SAME|
In the present invention a rotary electric machine drive device (10) is equipped with: multiple drive circuits (120, 220) and multiple control units (131–133, 231–233) for controlling the driving of a rotary electric machine (80) equipped with multiple winding groups (180, 280). The control units (131–133, 231–233) have: individual current limit value calculation units (140, 171, 172, 240, 271, 272) that calculate an individual current limit value, which is a value for each system associated with a current limit; current limit value calculation units (161, 261) that set a current limit value on the basis of the individual current limit value; and control signal calculation units (169, 269) that calculate a control signal based on a current command value calculated in accordance with the current limit value, and output the control signal to the drive circuits (120, 220). The current limit value calculation units (161, 261) can switch between a shared current limit mode, in which the current limit values are made to match for the host system and the other system, and an unshared current limit mode, in which the current limit values are set individually for the host system and the other system.