Torque Transmission Control for Hybrid Vehicles

The patent applies the continuity of useful action principle by maintaining continuous torque transmission during gear changes. The electrical machine continuously drives the generator during ratio transitions, ensuring that torque is never interrupted to the wheels. This eliminates the torque break sensation while allowing seamless gear changes, thus preserving driving pleasure while maintaining transmission ratio adaptability.

The patent replaces complex mechanical torque management systems with an electrical control system. Instead of using mechanical means to prevent torque breakdown, the invention uses the electrical machine and generator to continuously manage torque flow through electrical energy conversion. This substitution dramatically simplifies the mechanical transmission system while maintaining smooth torque delivery during gear changes.

The patent applies the dynamics principle by making the transmission system adaptable through electrical control rather than fixed mechanical gearing. With only two physical gear ratios, the system dynamically adjusts torque distribution and generator loading to optimize performance across different driving conditions. The electrical machine's variable speed and torque capabilities compensate for the limited mechanical gear ratios, maintaining adaptability while simplifying the transmission structure.

The patent applies periodic action by using the generator to periodically recharge the battery during driving. When the electrical machine operates at low speeds to maximize torque, the generator simultaneously generates electrical energy to recharge the battery, creating a periodic energy recovery cycle. This allows the system to sustain high-torque operation without proportionally increasing net energy consumption, as energy is recovered during deceleration and coasting phases.