Abstract: A method for simulating malfunctioning solenoid valves is disclosed. A current flows through a solenoid valve in order to achieve opening and closing. The closing is forced after the current supplied to the solenoid valve is activated at an activation time, and the opening is forced after the current is deactivated. The current is applied with a charging current strength before activation for a charging phase, and after activation, the current is increased to peak current strength and subsequently reduced to a holding current strength. The current strength is reduced to a deactivation current strength, after which the current strength increases again. A variation of the value or duration of the current strength or an application of an additional magnetic force is used to simulate a premature activation, a delayed activation, a premature deactivation, or a delayed deactivation.

Abstract: The invention relates to a method for simulating malfunctioning solenoid valves for an internal combustion engine by influencing an activation time and a deactivation time of the solenoid valve. A current with a specified modifiable current strength flows through the solenoid valve in order to achieve an opening and closing process. The closing process is forced after the current supplied to the solenoid valve is activated at the activation time, and the opening process is forced after the current supplied to the solenoid valve is deactivated at the deactivation time. The current is applied with a charging current strength prior to the activation time for the duration of a charging phase, and after the activation time, the current is increased to peak current strength and subsequently reduced to a holding current strength.