Automobile electronic water pump malfunction andimprovement measures
The electronic water pump failure of a commercial electric vehicle occurred several times,and the probability of plugging and electrical problems was high after analysis.In order to solve the after-sales quality problem and improve the reliability of vehicles,analyzes the causes of the failure of the pump and formulates corresponding solutions from the source of the impurities blocked by the pump,the principle and composition of the pump structure,and the test results.After the test verification of single impurities mixing and the reliability road test of the whole vehicle,the improved pump did not repeat the quality problem,proving the effectiveness of the improvement measures and greatly reducing the after-sales quality accidents of the pump.