The Control Principle Of LPG CNG Switch

There are many devices on the car, today we will talk about the control principle of the LPG CNG Switch .

Gasoline/natural gas dual-fuel vehicles can be divided into three categories: open-loop mixer gas supply system, closed-loop mixer gas supply system with electronically controlled power valve, and electronically controlled gas injection. The difference of the special device is mainly reflected in the formation method of the mixture, the control method of the concentration of the mixture, and whether it is single-point jet control or multi-point sequential jet control. Other special devices are the same. At present, the closed-loop control system of the mixer mode is generally adopted on EFI vehicles at home and abroad, and the matched power performance, emission performance, fuel economy, and other indicators can meet the requirements of use.

Regardless of the LPG CNG Switch is started with gasoline at any position; when the switch is started with gasoline in the gas gear, the engine speed will be accelerated to higher than the predetermined engine speed, and then decelerated. When the speed drops to the predetermined value, the fuel will automatically switch to gas.

The CNG Emulator is the function of the main electronic control part added by the dual-fuel engine, and of course, there are other parts.