摘要
针对传统模拟的发动机转速信号不能渐变、实时性不强、同步精度不高、信号盘齿数不可调、硬件开发复杂等问题,提出采用简单模块化的软件设计方法。将旋转可调的电压信息转化成发动机的模拟转速信号,两路模拟信号使用同一个基定时器,通过改变程序中的参数满足不同的信号盘特点,无需借助外部转速模拟系统或发动机真实转速信号的输入直接就能有效地满足发动机ECU系统的开发。基于TC1728的仿真结果表明:该方法灵活可靠,通用性、真实性和实时性强,模拟出来的转速信号完全同步,台架试验结果验证了仿真结果的有效性。
Aiming at the problems that the engine speed signals simulator cannot gradually changed realtime, synchronous precision was low, signal plates of teeth were unadjustable and hardware development was complex in traditional ways. The method of using a simple modular software idea was proposed, which through transforming the adjustable voltage information into the simulation of engine speed signals that using the same base timer and meet the different signal plates characteristics by changing the program parameters, without inputting signals from external engine speed signal simulator system or real engine speed, which were convenient and effective to satisfy the development of engine ECU system. The simulation resuits based on the TC1728 showed that the proposed one was fully synchronous, more generality, more flexible and more reliable, compared with the traditional method, the bench test results verified the validity of the simulation results.
出处
《小型内燃机与车辆技术》
2015年第6期71-75,共5页
Small Internal Combustion Engine and Vehicle Technique
基金
国家自然科学基金项目(61164008)
