You can frequently use the Eco mode in your car. Eco mode, also known as Economy Mode, is particularly effective in saving fuel when driving in congested urban traffic conditions. When the Eco mode is activated, the fuel-saving effect is noticeable. Under Eco mode operation, the carbon deposits in the engine are roughly the same as those produced under normal operating conditions, so the Eco mode can be kept on continuously. The main principle of Eco mode is not complicated. It involves a comprehensive judgment and analysis of factors affecting fuel consumption during vehicle movement, such as automatic transmission gear position, engine speed, vehicle speed, braking, and transmission oil temperature. The ECU control unit calculates the appropriate amount of fuel to supply the engine, effectively reducing fuel consumption compared to normal driving modes. Simply put, it controls the engine speed with reasonable gear selection to minimize unnecessary fuel consumption. ECO is an abbreviation, with its Chinese translation being Ecology (environmental protection), Conservation (energy saving), and Optimization (power). Eco mode is further divided into active Eco driving mode and passive Eco driving mode. When the Eco indicator light on the dashboard illuminates, it indicates that the vehicle's economy mode is activated. Eco mode is categorized into active and passive types. The difference lies in the fact that the active type has a dedicated button, allowing the driver to choose whether to activate it. When the driver presses the Eco mode switch, the dashboard indicator light immediately turns on, and the vehicle automatically begins adjusting settings, such as throttle opening, transmission shift logic, and air conditioning output power. The passive Eco mode does not have a dedicated button. When the Eco indicator light on the dashboard illuminates, it serves merely as a reminder function. The Eco system automatically evaluates your driving behavior. If your current driving operation achieves the optimal fuel supply, the dashboard will simultaneously display the Eco indicator light. Most cars use the active Eco driving mode, meaning they have a dedicated switch button. Therefore, during daily driving, we can activate the Eco mode. However, it is unnecessary to enable Eco mode when driving at speeds exceeding 120 km/h, during idle parking, in N/P gear, or in manual mode—especially when climbing hills. Doing so would not only fail to demonstrate the fuel-saving characteristics of Eco mode but also affect the vehicle's power. Additionally, Eco mode typically becomes ineffective under the following circumstances: When the vehicle speed exceeds 120 kilometers per hour, the car prioritizes speed, causing the Eco mode to automatically deactivate. During idle parking or when in N/P gear or manual mode, the Eco mode may also become ineffective. When high torque output is required, such as when climbing hills, the engine's computer prioritizes ensuring sufficient power to drive the vehicle, and the Eco mode will not function in such scenarios.
