How do you design a dedicated hybrid transmission (DHT) for optimal efficiency?

DHT design considerations include: Motor integration strategy (P2-P4 configurations for different packaging), gear ratio selection optimizing both EV and hybrid modes, clutch and synchronizer design for mode transitions, thermal management for motors and transmission, NVH management during motor operation (no masking from engine), mechanical efficiency across all operating modes, torsional damper design for engine decoupling, and control architecture for seamless mode transitions. Analysis uses efficiency maps for all components combined with drive cycle simulation to optimize ratio selection and mode switching strategy. Key trade-offs include complexity, cost, and package size versus efficiency.