模拟发动机燃油系统运行环境仿真模型的方法和系统

Method and system for simulating run environment simulation model of engine fuel oil system

Abstract

本发明公开了一种模拟发动机燃油系统运行环境仿真模型的方法,通过PLC设置发动机转速,将携带发动机转速的指令发送至伺服电机驱动器,伺服电机驱动器根据指令驱动伺服电机进而带动发动机,使伺服电机和发动机的转速等于指令规定的发动机转速。PLC首先设置发动机怠速速度,进而通过伺服电机驱动器及伺服电机启动发动机运转,然后获取发动机当前转速和发动机的油门踏板的模拟电压信号,根据转化后的油门开度、发动机当前转速及设置的整车转动惯量设置发动机下一时刻转速,使得发动机持续运转。本方法能模拟设计出的发动机燃油系统运行环境仿真模型,实现对燃油系统的研究。本发明同时公开了一种模拟发动机燃油系统运行环境仿真模型的系统。
The invention discloses a method for simulating a run environment simulation model of an engine fuel oil system. The rotating speed of an engine is set through a PLC (programmable logic controller), a command carrying the rotating speed of the engine is transmitted to a servo motor driver, the servo motor driver drives a servo motor to drive the engine according to the command, so as to enable the rotating speeds of the servo motor and the engine to be equal to the rotating speed of the engine set by the command.The idling speed of the engine is firstly set by the PCL, and then the engine is started to run by the servo motor driver and the servo motor, and then the current rotating speed of the engine and a simulation voltage signal of the accelerator pedal of the engine are obtained; therotating speed of the engine at the next moment is set according to the converted throttle opening, the current rotating speed of the engine and the set rotational inertia of the finished automobile,so as to enable the engine to rotate continuously. By utilizing the method, the run environment simulation model of the engine fuel oil system can be designed and simulated, and the study on the fueloil system is realized. The invention discloses a system for simulating a run environment simulation model of an engine fuel oil system simultaneously.

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