Which is more difficult, mild hybrid or strong hybrid?

[McElliana]

Compared to strong hybrid, mild hybrid is more difficult. Mild hybrid system: The hybridization degree of mild hybrid systems is only within 10%. Generally, it refers to adding a belt to the starter motor of a traditional internal combustion engine to connect it with the engine. This motor is an integrated motor for power generation and starting, which can be used to control the engine's start-stop, avoiding the engine from entering idle state, thereby reducing some fuel consumption and emissions. Strong hybrid system: Strong hybrid systems use high-voltage starter motors, and most strong hybrid systems are dual-motor systems with a hybridization degree reaching or even exceeding 50%. They possess the idle stop system and brake energy recovery system that mild hybrids also have, but go further by enabling pure electric driving within certain speeds, not just assisting the engine, and can completely compensate for various inefficient operating conditions of gasoline-powered vehicles.