摘要:
A method for operating an internal combustion engine and a corresponding device are described, in which reference pulses are generated synchronously with respect to the cyclical movement of at least one part of the internal combustion engine. At least one event moment for the occurrence of at least one event is calculated by an output unit at specific, definitively preset time intervals of the cyclical movement. Moreover, an independent clock-pulse generator is provided which generates clock pulses, the interval of the clock pulses being independent of the movement, and the interval of the clock pulses being smaller than the interval of the reference pulses. The at least one event moment is expressed as the number of clock pulses of the independent clock-pulse generator, and the at least one event is triggered upon reaching the number of clock pulses. By observing the clock pulses of the independent clock-pulse generator counted between at least two successive reference pulses, a relationship value is formed which contains information about the future timing of the movement, this relationship value being used to alter the number of clock pulses.
摘要:
An ignition controller has a revolution rate detector, a crankshaft angle detector, a computer, a first read/write memory device for the computed ignition angles for all cylinders, an ignition cycle overlap detector, a FIFO memory for storing a computed ignition angle and a copier for copying the angle from the first memory to the second depending on the degree of overlap. An ignition output device outputs the ignition angle for the next cylinder to be ignited and the corresponding charging time and charging starting angle.
摘要:
An ignition control device for controlling an ignition coil device for an internal combustion engine, having an angle measuring device for measuring the current crank angle of the internal combustion engine and for outputting an equidistant angle pulse signal and an angle signal for indicating the respective beginning of a working cycle. The ignition control device includes a synchronization device for synchronizing the angular positions of the individual cylinders to the output signal of the angle measuring device, a rotational speed measuring device for measuring the rotational speed of the internal combustion engine at a measuring time point within the ignition cycle of an individual cylinder, and a calculating device for calculating a preestablished ignition angle corresponding to the measured rotational speed. A preestablished charging time corresponds to the measured battery voltage, and a beginning charging angle corresponds to the respective calculation angles in accordance with the synchronization. An ignition control value output device for outputting the beginning and the ending of the charging time.
摘要:
A method for assessing an injection behavior of at least one injection valve of an internal combustion engine includes putting the internal combustion engine into a special operating mode defined by control parameters and operating the engine in the special operating mode during a diagnostic time period, at least one operating parameter of the internal combustion engine being determined at least during the diagnostic time period, and at least one quantity characterizing the injection behavior of the at least one injection valve being evaluated at least during a segment of the diagnostic time period and being evaluated on the basis of the at least one operating parameter.
摘要:
A method of safeguarding program parts which are critical to safety against inadvertent execution is described. In this method, at least one program part is executed in a predetermined chronological sequence. At a certain time in the execution, a pattern is generated. At least at one later time, a check is then performed to determine whether the pattern is present. If the pattern is not present, the execution of the respective program part is terminated. A memory device for executing such a method is also described.
摘要:
A method for starting an internal combustion engine, in which a control unit starts at least one function at a specific crankshaft angle, the function being shifted from the start of the internal combustion engine until a final condition is reached by a relative angle to a later crankshaft angle.
摘要:
A memory device and an arrangement are provided for safeguarding safety-critical program parts against inadvertent execution. At least one program part is executed in a predetermined chronological sequence. At a certain time in the execution, a pattern is generated. At least at one later time, a check is then performed to determine whether the pattern is present. If the pattern is not present, the execution of the respective program part is terminated.
摘要:
A method for operating an internal combustion engine, in particular, of a motor vehicle. The internal combustion engine includes an injector having a nozzle needle for injecting fuel into a combustion chamber of the internal combustion engine, as well as an output stage component. A desired signal is specified for a lift characteristic of the nozzle needle. The injector is activated by the output stage component. A lift signal is ascertained that corresponds to the actual lift characteristic of the nozzle needle. An actual signal is ascertained from the lift signal. A deviation signal is ascertained in response to a deviation of the actual signal from the desired signal.
摘要:
A method for controlling an injection of fuel in an internal combustion engine, in particular in a gasoline engine having direct injection, a drive fuel quantity, which indicates the fuel quantity required by the internal combustion engine to provide a torque, being injected in a working cycle before a combustion stroke of the working cycle into a cylinder of the internal combustion engine, a cooling fuel quantity, which indicates the fuel quantity which is used to cool the combustion exhaust gases, being injected in the working cycle in addition to the drive fuel quantity, at least part of the cooling fuel quantity being injected after completion of the combustion in the combustion stroke and/or the immediately following exhaust stroke of the working cycle.
摘要:
The invention concerns a procedure for controlling an injection valve, at which the injection valve is supplied with current that is provided by a condenser during a holding phase, at which the injection valve is kept open. The invention further concerns a device for controlling an injection valve, which is customized to cause the condenser to provide the injection valve during a holding phase, at which the injection valve is kept open, with current.