Does the accelerator pedal control the accelerator or the accelerator? Control principle of accelerator pedal

My answer is: the accelerator pedal can control the fuel quantity indirectly or directly. The fuel quantity refers to the fuel injection quantity of the injector or the fuel quantity of the high-pressure fuel injection pump. Answer the reasons from gasoline engine and diesel engine. The control method of the accelerator pedal is that when driving, we can't open the accelerator with our hands at the same time (which is also unrealistic). The designer uses the accelerator pedal to connect the accelerator through wires and electronic control, so the accelerator function can be realized by stepping on the accelerator. According to the current control mode of accelerator pedal, it can be divided into cable type and electronic type, as shown in the following figure. The control principle of the cable accelerator pedal is the way of mechanically controlling the accelerator. Directly controlling the throttle opening with wire has the advantages of simple structure and quick response, but the control is inaccurate and there is a danger of disconnection. The electronic accelerator pedal is a part of the electronic accelerator. When stepping on the accelerator pedal, the descending amplitude of the accelerator pedal is fed back to the computer, and the throttle opening is determined by calculation, so as to achieve the purpose of accurately controlling the intake air volume and throttle opening. However, this control method has some shortcomings, such as high intake control accuracy, relatively high fuel consumption, high price, unsustainable, pedal response and throttle opening lag. The traditional diesel engine has no throttle, and now the electronically controlled diesel engine is also used. The main function of diesel engine is to cooperate with EGR and DPF system to adjust EGR conversion rate and increase exhaust temperature, and the fuel adjustment is still in the high pressure oil pump. The oil quantity control mode of diesel engine is controlled by high pressure oil pump. High-pressure oil pump includes plunger pump and VE rotor pump. Piston pump pumps a large amount of oil for heavy trucks. VE rotor pump has a simple structure, can steadily improve the uniform oil quantity and hydraulic pressure, and is suitable for light trucks. Generally speaking, the accelerator pedal plays an important role in fuel quantity control. Different engines have different control modes, so it is necessary to choose the most suitable control mode according to the specific situation in practical application.