Which mode should BYD Han DM use on highways?

[Marilyn]

BYD Han DM should use the HEV highway mode on highways. Meaning of HEV: HEV stands for "Hybrid-Electric-Vehicle," which refers to a non-plug-in hybrid electric vehicle. It is powered by both a diesel or gasoline engine and an electric motor, which together provide the vehicle's power. The most mature hybrid technology currently involves a combination of a gasoline engine and an electric motor. Function of HEV: The battery capacity of an HEV is very small and cannot be charged using an external power source, making it incapable of prolonged pure electric driving. Its electric motor has low power and can only provide auxiliary power to the engine during scenarios like starting or accelerating, thereby achieving some energy-saving effects. Since the main power source is still the engine, it is not classified as a new energy vehicle but rather as an energy-saving fuel vehicle.

[George]

When driving the BYD Han DM on highways, I usually opt for the Hybrid Electric Vehicle (HEV) mode, a choice based on practical driving experience and personal preference. During high-speed cruising, the hybrid mode effectively balances fuel economy and power output, as the engine operates efficiently at constant speeds while the electric motor assists with smooth acceleration, preventing sudden battery depletion. If the battery is sufficiently charged, starting in pure Electric Vehicle (EV) mode is an option, but for rapid acceleration or long-distance travel where battery drains quickly, switching to HEV proves more reliable. The vehicle system automatically adjusts energy regeneration, though manually selecting HEV offers greater peace of mind. I also make sure to maintain battery levels above 20% to avoid frequent engine start-stop cycles. Given the significant aerodynamic drag at highway speeds, HEV optimizes overall efficiency, consistently saving 10-15% in fuel consumption per long trip. Factoring in weather conditions like windy days, pre-charging ensures driving stability. Regularly checking mode settings is crucial—while the intelligent system performs well, proactive control provides added assurance.

[RubyFitz]

When driving the BYD Han DM on the highway, I prefer to use the hybrid mode primarily because it offers strong power and is fuel-efficient. I've taken multiple long-distance trips, initially trying the pure electric mode when the battery was sufficient, but found that overtaking or climbing hills on the highway drains the battery too quickly, often triggering the low battery warning. In hybrid mode, the engine and motor work together seamlessly, maintaining a smooth drive at around 120 km/h with reasonable fuel consumption. I personally recommend ensuring the battery level is at least 30% before hitting the highway to avoid overloading the engine. Regular maintenance, such as checking battery health, is also beneficial. Additionally, the system can recover energy during traffic jams or downhill sections, converting it into electricity for future use—a clever design. Long-term use of the hybrid mode significantly reduces costs, saving hundreds in fuel expenses each month, which is particularly cost-effective. Lastly, remember that highway wind noise is more manageable in this mode, providing a smoother and more comfortable ride.

[DeElijah]

When driving the BYD Han DM on the highway, I simply switch to hybrid mode for simplicity and efficiency. The reason? The engine operates at higher efficiency on highways, making this mode both energy-saving and powerful with no loss in performance. I've tried pure electric mode with sufficient charge, but the battery drains too quickly at high speeds, requiring frequent charging which is inconvenient. The hybrid mode is system-optimized for acceleration, balances power recovery, and manages itself automatically, making driving more worry-free. I also recommend checking vehicle settings to ensure smooth mode switching and performing regular battery maintenance for safe long-distance highway driving.