BYD Seal — Working Modes of Dual-Mode (DM) System

● In HEV mode, the engine drives the vehicle and simultaneously drives the motor to generate electricity for energy recycling. REMINDER ● The vehicle may switch to HEV mode automatically under operating conditions such as rapid acceleration, high vehicle speed, grade climbing, high or low temperature, low SOC level or the need of engine maintenance. Switch to EV mode manually if needed when EV conditions are meeted. It is recommanded to choose HEV mode under high or low temperature conditions. ● In HEV mode, the engine drives the vehicle and the drive motor rests. "HEV" - Dual-Mode Synergy Operating Mode:

Configuration 2 (4WD) ● In HEV mode, when the SOC level is high or the power demand is low, the vehicle system prioritizes EV drive, without starting the engine. "EV" - Pure Electric Operating Mode: ● In EV mode, the high-voltage battery provides electric energy to drive the vehicle by the electric motor, and this mode can meet a variety of operating conditions, such as starting, reversing, crawling, accelerating, and driving at a constant speed. According to the operating conditions, the vehicle system intelligently selects pure electric 4WD mode or pure electric front-drive mode.

● In HEV mode, when the SOC level is low or the power demand is high, the engine starts and operates in series to meet the power demand. 32