Test and Analysis of Transient Process on the Cold-Starting of Diesel Engine

In order to acquire and carry out the transient parameter of the diesel engine cold-starting, the portable data acquisition system has been developed. Based upon the transient data acquisition systems, several instantaneous parameters about transient process of the diesel engine cold-starting, such as, temperature, starting voltage, starting electric current and starting rotate speed are measured, the instantaneous process of the diesel engine cold-starting is tested and analyzed. The test results show that the time of start process is 4.8 second, the maximum temperature variation of the cooling fluid is 0.5degC, the maximum starting electric current is 678A, the minimum starting voltage is 9.3V, the maximal starting torque is 200 N.m, The variation of the start voltage, the start electric current and the start rotational speed is accordingly 30%, 25% and 25%. The regulation and the variation of instantaneous parameters can meet the need of the cold-starting of the diesel engine greatly.