Where is the car throttle controlled?
2 Answers
Car throttle controls the throttle valve. In carburetor vehicles, the throttle cable controls the opening of the throttle valve. Accelerating means increasing the throttle valve opening, which increases the airflow into the cylinders. The carburetor sprays fuel driven by the airflow, and as the throttle valve opening increases, the fuel supply increases, raising the engine speed. Conversely, the speed decreases. Here is some additional information: 1. Cable throttle: Whether gasoline or diesel vehicles, there are still many vehicles with cable throttles on the market. The throttle pedal directly controls the throttle valve opening via a cable, thereby regulating the air intake of the gasoline engine and adjusting the engine's power output. 2. Electronic throttle: Electronic throttle no longer uses mechanical connections but instead uses electrical signals to reflect the driver's intentions. The control system collects this pedal signal as one parameter to adjust the engine's power output, combining it with other parameters to determine the engine's output power.
I often study automotive mechanical structures, and the throttle pedal actually controls the engine's throttle system. When the pedal is pressed, whether it's a traditional cable or a modern electronic throttle, it opens the throttle to increase air intake. The car's computer then adjusts the fuel injection and ignition timing to raise the engine's RPM and accelerate the vehicle. The throttle is the heart's entry point of the engine, and when dirty, it can cause sluggish response. That's why I clean it regularly to maintain sensitivity. In practical driving, the throttle position sensor is crucial—if worn, it should be replaced promptly to avoid sudden failure affecting safety. Maintain smooth pedal pressure instead of stomping to save fuel and extend engine life. Also, remember to check if floor mats are obstructing the pedal, as such minor issues are easily overlooked.
