What Causes High Instantaneous Fuel Consumption?
1 Answers
When starting the car, the accelerator is often pressed deeply to accelerate, which results in a large throttle opening, increased engine air intake, and consequently more fuel injection. The computer calculates instantaneous fuel consumption based on high fuel volume and low vehicle speed, leading to high readings. High instantaneous fuel consumption does not necessarily indicate high average fuel consumption. Below is relevant information about instantaneous fuel consumption: 1. Introduction to Instantaneous Fuel Consumption: Instantaneous fuel consumption refers to the fuel consumption value of a car at a specific moment. The value of instantaneous fuel consumption at a single point is not very meaningful, as it constantly changes under different vehicle states and driver operations. However, connecting the instantaneous fuel consumption values under various states into a curve can provide significant reference value. 2. Significance of Observing Instantaneous Fuel Consumption: (1) By observing instantaneous fuel consumption, you can understand the fuel consumption when the vehicle is stationary and the engine is idling; (2) Through instantaneous fuel consumption, you can learn the fuel consumption per 100 kilometers at different speeds (the drag coefficient, which significantly impacts fuel consumption, is proportional to the square of the speed), thereby identifying the vehicle's most economical speed; (3) For vehicles with computer-controlled fuel injection, instantaneous fuel consumption can show that fuel consumption is "0" during gear coasting (the fuel injector stops injecting fuel).
