重型商用车电控硅油风扇控制策略优化研究  

Optimization of Control Strategy of Electronically-Controlled Silicon Oil Fan for Heavy-Duty Commercial Vehicle

作　　者：毕道坤 刘威亚 陆增俊 唐荣江[2] 粘权鑫 BI Daokun;LIU Weiya;LU Zengjun;TANG Rongjiang;NIAN Quanxin(R&D Center of Commercial Vehicle,Dong Feng Liuzhou Automobile Co.,Ltd.,Liuzhou 545000,China;School of Mechanical&Electrical Engineering,Guilin University of Electronic Technology,Guilin 541000,China)

机构地区：[1]东风柳州汽车有限公司商用车技术中心,广西柳州545000 [2]桂林电子科技大学机电工程学院,广西桂林541000

出　　处：《车用发动机》2021年第5期76-80,86,共6页Vehicle Engine

基　　金：广西青年科学基金项目(2018GXNSFBA281012);广西创新驱动发展专项资金(桂科AA19182004);柳州市科学研究与计划开发项目(2018AA20301)。

摘　　要：针对传统重型商用车冷却系统电控硅油风扇控制策略不完善导致油耗偏高的问题,提出一种基于发动机水温和空调压力协同控制的风扇控制策略.将发动机水温对风扇转速的影响更改为90~98℃的无级调速闭环控制,考虑了空调制冷剂的具体压力值,利用PID控制算法,将二者协同作用于风扇转速的调节.基于协同控制策略,在某重型商用车上进行了实车电控标定验证和油耗测试试验,结果表明,在满足发动机工作水温控制和空调使用的前提下,可以改善整车运行油耗3%左右.For the problem of high fuel consumption led by the poor control strategy of electronically-controlled silicon oil fan of traditional heavy-duty commercial vehicle cooling system,a fan control strategy was proposed based on the coordinated control of engine water temperature and air conditioning pressure.The influence of engine water temperature on fan speed was changed to 90-98℃stepless speed regulation closed-loop control,the specific pressure value of air conditioning refrigerant was further taken into account,and both of them were finally used to adjust the fan speed by using PID control algorithm.Based on the coordinated control strategy,the real-vehicle electronic control calibration and verification and fuel consumption test were carried out on a heavy-duty commercial vehicle.The results showed that the fuel consumption of vehicle improved by about 3%under the premise of meeting the water temperature of engine working control and air conditioning.

关 键 词：电控硅油风扇 控制策略 重型商用车 燃油经济性 

分 类 号：U464[机械工程—车辆工程]