电磁阀线圈温度预测建模及耐温性判断

Coil Temperature Prediction Modelling of Electromagnetic Control Valve and Resistant Temperature Judgement

针对电磁阀的线性控制导致控制线圈的温升进而影响电磁阀控制性能的问题,提出一种基于电磁阀内控制线圈温度预测模型的无传感温度测量方法。该温度预测模型建立于能量守恒定律,利用控制线圈的温度实测数据和最小二乘法来优化模型参数,以电磁阀的实际线性控制指令来验证控制线圈的耐温性和电磁阀的控制性能。结果表明,该温度预测模型能有效地计算出控制线圈的温升,实现了无传感线圈温度测量,为判断控制线圈的耐温性提供了有利的依据,为简化电磁阀控制单元的硬件结构提供了有效的手段。

The linear control of the electromagnetic valve lead to the temperature rise of the control coil and to influence the control performance of the electromagnetic valve. In order to judge resistant temperature of the control coil and to improve the control performance of electromagnetic valve we are proposed a sensor-less temperature measurement method based on the temperature prediction model of control coil. The temperature prediction model is established in the law of conservation of energy, using the temperature test data of control coil and the least square method to optimize the model parameters, and the electromagnetic valve actual linear control instruction to verify the resistant temperature of control coil and the control performance of electromagnetic valve. The results show that the temperature prediction model can effectively to calculate the temperature rise of control coil, and to realize the sensor-less temperature measurement of the control coil, and To judge the coil resistant temperature control with favorable basis and to simplify the electromagnetic valve control unit hardware structure of the effective way to provide.