Design of performance test platform for low-power electronic water pump for vehicles
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.
LabVIEWelectronic water pumpperformance testdata acquisitionRS485
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