CONTROLLER OF HYBRID DRIVE

摘要

PROBLEM TO BE SOLVED: To provide a controller which prevents or restraining regenerative efficiency from decreasing when a vehicle is decelerated or braked.

SOLUTION: In the controller of a hybrid drive, an input member of a transmission mechanism is connected to an internal combustion engine via a frictional engagement device that connects or disconnects a power transmission path between the internal combustion engine and the transmission mechanism, and an electric motor having a function as a generator is connected to an output member of the transmission mechanism. The controller includes: frictional engagement device control means for releasing the frictional engagement device and disconnecting the power transmission path during regenerative control in which the electric motor is driven as a generator (step S1 to S3); loss calculation means for calculating losses at the transmission mechanism and losses at the frictional engagement device during the regenerative control (step S5 to S7); and a transmission control means for controlling the transmission ratio of the transmission mechanism based on the losses at the transmission mechanism and the losses at the frictional engagement device during the regenerative control (step S8).

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