The invention discloses a starting control method for
hydrogen fuel engines, which is characterized in that a
camshaft fluted disc adopted in the method comprises two wide teeth and two narrow teeth, the two wide teeth are adjacently arranged, and the two narrow teeth are also adjacently arranged, and a
camshaft angle corresponding to the sum of the width of each tooth and the width of a tooth gap is 90 degrees; when the rotating speed is less than 50 turns / minute, operations of
hydrogen spraying and ignition setting and
throttle operations are not performed; when the rotating speed is 50-150turns / minute, the operations of
hydrogen spraying and ignition setting are still not performed, but when detecting that the rotating speed is greater than 50 turns / minute, the first eight turns of throttles of an engine are immediately controlled to be completely opened, and then closed; when the rotating speed is 150-400 turns / minute, the operations of hydrogen spraying and ignition setting are realized by using
crankshaft signals; when the rotating speed is greater than 400 turns / minute, a
crankshaft phase is determined according to the
crankshaft signals, and then the operations of hydrogen spraying and ignition setting are performed according to the crankshaft phase; and when the rotating speed is greater than 1000 turns / minute, the starting operation is completed, and then the engineis in an idle state. By using the starting control method disclosed by the invention, the control accuracy of the first half phase of a starting operation can be ensured.