Electric Vehicle Creep Driving Control via Dynamic Torque Map Switching

The system dynamically switches between two torque map strategies based on vehicle speed: at low speeds, it applies creep torque to enable smooth vehicle movement without accelerator input, while at higher speeds, it transitions to coast regenerative torque for energy recovery. This dynamic adaptation resolves the contradiction by providing context-appropriate torque characteristics.

The controller changes the torque parameter based on vehicle speed conditions. By storing multiple reference torque maps (one for creep driving, one for coast regenerative braking) and selecting the appropriate map based on detected vehicle speed, the system optimizes both fuel efficiency and drivability across different operating conditions.

The system dynamically adjusts the regenerative torque characteristics based on vehicle speed. At low speeds where creep driving is needed, the system applies minimal or zero regenerative torque to allow smooth vehicle movement. At higher speeds where energy recovery is more effective, the system applies full coast regenerative torque, thus optimizing both drivability and energy recovery across different speed ranges.

The controller stores multiple reference torque maps with different torque characteristics and selects the appropriate map based on vehicle speed detection. This parameter switching enables the system to provide creep torque at low speeds for good drivability while applying coast regenerative torque at higher speeds for maximum energy recovery.