车用小功率电子水泵性能测试平台设计
Design of performance test platform for low-power electronic water pump for vehicles
龚元明 1王磊 1吴长水1
作者信息
- 1. 上海工程技术大学 机械与汽车工程学院,上海 201620
- 折叠
摘要
车用电子水泵性能测试方法目前存在自动化程度低、精度不足、功能单一等问题,为此,以工控机为载体,开发了一种车用电子水泵性能测试平台.以LabVIEW为基础开发上位机软件,下位机采用PLC控制阀门和水泵等电气元件,基于RS485进行数据采集并传输给上位机,通过上位机与下位机协同控制的方式,实现数据交互处理、生成水泵性能测试报表等功能.在该平台对EWP8040-H型水泵进行性能测试,结果表明:当电子水泵的阀门开度处于最优工作区间(25％左右)时,水泵的额定流量为13 L/min,实测流量为12.92 L/min;额定扬程为4.38 m,实测扬程为4.07 m.测试结果在合理误差范围内,表明平台可保证测试结果的准确性.
Abstract
The automotive electronic water pump is one of the essential components to ensure the smooth operation of a vehicle 's cooling system.However,the current methods for testing the performance of automotive electronic water pumps are faced with such issues as low automation,insufficient accuracy,and limited functionality.To address these issues,this paper develops a performance testing platform for automotive electronic water pumps by employing an industrial computer as the carrier.The upper-level software is developed based on LabVIEW,while the lower-level control utilizes a PLC to manage valves and electrical components,including the water pump.Data are acquired and transmitted via RS485 to the upper-level software.Through collaborative control of the upper-level and lower-level systems,data interactive processing is achieved and the performance test reports are delivered.Performance tests are conducted on the EWP8040-H type water pump using the platform.Our results indicate:when the valve opening of the electronic water pump is within the optimal operating range (about 25％),the rated flow rate is 13 L/min while the measured flow rate is 12.92 L/min;the rated head is 4.38 m while the measured head is 4.07 m.Our test results fall within a reasonable error range,demonstrating the platform's capability of ensuring the accuracy of the test results.
关键词
LabVIEW/电子水泵/性能测试/数据采集/RS485Key words
LabVIEW/electronic water pump/performance test/data acquisition/RS485引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据