Magna International Inc.
ELECTRIC VEHICLE AIR CONDITIONING SYSTEM AND METHOD

Abstract:

A vehicle system includes an electric motor that also operates as a generator. A torque transfer mechanism is attached to the electric motor and a second torque transfer mechanism is connected via a disconnect mechanism. An AC compressor is attached to the first torque transfer mechanism via a clutch, which has an open position and a closed position. During recuperation, the second torque transfer mechanism is connected to the first torque transfer mechanism and the clutch is closed, and the compressor is driven by the motor. During stand-still, the second torque transfer mechanism is disconnected from the first torque transfer mechanism, and the compressor is driven by the motor. During drive operation, the second torque transfer mechanism is connected to the first torque transfer mechanism, and the clutch is open such that the compressor is not driven, but the system continues to provide cool air to the vehicle cabin.