Disclosed are a control method for a hydraulic retarder, and a control system. The control method includes: acquiring a slope of a downhill road segment ahead of a vehicle; determining whether an absolute value of the slope of the downhill road segment ahe...

To simplify wiring and downsize the entire device at the same time. [0002] The present invention relates to a drive device for a hybrid vehicle. The drive device includes a first inverter 30 that controls a rotary electric machine and a second inverter 40 ...