Abstract: A method and a corresponding device are disclosed for starting an internal combustion engine designed for alcohol or a high content of alcohol in a mixed alcohol-gasoline fuel, including setting an early starting ignition time point in a first time period beginning immediately after the activation of the starting process of the engine. The rotational speed of the internal combustion engine is monitored and the number of the cylinder working cycles is summed during the starting process and, upon exceeding a predetermined rotational speed threshold value, the number of those cylinder working cycles is summed in which there occurs a rotational speed increase greater than a predetermined threshold value. The number of the cylinder working cycles is compared with predetermined threshold values and, upon reaching or exceeding the threshold values, the ignition time point is shifted starting from the early ignition time point toward a late ignition time point.

Abstract: Various embodiments include a method for starting an internal combustion engine comprising: in a first phase after a starting process, setting a throttle valve to a value near to zero so the pressure in the intake tract is lowered below the ambient pressure and injecting a fuel into the intake tract above a rich combustion limit at which the fuel/air mixture would still just be combustible; in a second phase, reducing the fuel mass as a function of the pressure; in a third phase shorter than the second phase, further reducing the fuel mass and increasing the opening of the throttle valve to increase the pressure in the intake tract; and in a fourth phase, increasing the fuel mass as a function of rising pressure in the intake tract.

Abstract: A method and a corresponding device are disclosed for starting an internal combustion engine designed for alcohol or a high content of alcohol in a mixed alcohol-gasoline fuel, including setting an early starting ignition time point in a first time period beginning immediately after the activation of the starting process of the engine. The rotational speed of the internal combustion engine is monitored and the number of the cylinder working cycles is summed during the starting process and, upon exceeding a predetermined rotational speed threshold value, the number of those cylinder working cycles is summed in which there occurs a rotational speed increase greater than a predetermined threshold value. The number of the cylinder working cycles is compared with predetermined threshold values and, upon reaching or exceeding the threshold values, the ignition time point is shifted starting from the early ignition time point toward a late ignition time point.

Abstract: Various embodiments include a method for starting an internal combustion engine comprising: in a first phase after a starting process, setting a throttle valve to a value near to zero so the pressure in the intake tract is lowered below the ambient pressure and injecting a fuel into the intake tract above a rich combustion limit at which the fuel/air mixture would still just be combustible; in a second phase, reducing the fuel mass as a function of the pressure; in a third phase shorter than the second phase, further reducing the fuel mass and increasing the opening of the throttle valve to increase the pressure in the intake tract; and in a fourth phase, increasing the fuel mass as a function of rising pressure in the intake tract.