ECO mode can be kept on for an extended period of time, except in a few cases: 1) When the vehicle is traveling at a very high speed (reaching 100 km/h); 2) When a high torque output is required, such as climbing uphill.
When the vehicle is traveling at high speeds, better power performance is needed, and the acceleration effect of ECO mode is not good. Therefore, it is necessary to step on the accelerator more deeply, which in turn reduces fuel efficiency. Even if ECO mode is activated, the driving computer will prioritize the vehicle speed, causing ECO mode to automatically deactivate.
When a high torque output is required, such as climbing uphill, the engine computer will prioritize providing enough power to drive the vehicle. In this case, ECO mode does not work either.
In summary, ECO mode is not recommended in situations where better power or high torque output is needed.
Additionally, ECO mode works by adjusting various parameters such as transmission gear, engine speed, braking system, and transmission oil temperature through various sensors. The driving computer (ECU) then calculates the optimal fuel injection quantity to achieve fuel efficiency. In simple terms, ECO mode controls the car to avoid idling or driving at low speeds for a long time, and prevents sudden acceleration, thus saving fuel.
