摘要:
A device for triggering ignition circuits is provided, a coupling being provided between a positive output stage and negative output stage of different pairs. Each positive and each negative output stage is assigned a diagnostic unit and a drive circuit.
摘要:
A device for controlling an internal combustion engine in a motor vehicle having an uneven running ascertaining unit and an injection quantity correction unit, in which one group of cylinders being associated with a lambda sensor, in which the uneven running ascertaining unit determines the uneven running of a cylinder and compares it with a predefinable threshold value. If the ascertained uneven running exceeds the predefinable threshold value, the injection quantity correction unit adjusts the injection quantity of the cylinder in the rich direction and adjusts the injection quantities of the other cylinders of the group, so that on the whole a predefinable lambda value of the group, which may be a lambda value of 1, is achieved, and a lambda deviation is determinable for each individual cylinder in an adaption unit.
摘要:
A method for determining cylinder-specific combustion features of an internal combustion engine, the cylinder-specific combustion features being ascertained from a variable which represents the crankshaft speed, especially being ascertained from a signal of a crankshaft sensor or camshaft sensor. The cylinder-specific combustion features include a combustion position of at least one cylinder and/or a torque of the crankshaft.
摘要:
A device and a method are proposed for controlling firing circuits for an element of restraint, individual transistors of the output stages being controlled by bit combinations, and impermissible bit combinations lead to an error message to a processor. In addition, a firing current is measured, in order to estimate a firing energy from it, so that efficient energy management can be carried out. Furthermore, determination of the firing current makes it possible to update a crash protocol as to whether the firing circuit was activated or not. When a voltage of the energy reserve is exceeded, it is further proposed to switch over to pulse operation for operating the output stages. Thereby a greater resistance to short-circuits and a higher efficiency are achieved.
摘要:
A method for calibrating an injection quantity of an injection system, using which fuel is to be injected into at least one combustion chamber of an internal combustion engine of a device, in which data of at least one zero point quantity calibration, which is carried out in an idling operation of the mechanical device, and data of at least one zero point quantity calibration, which is carried out in an overrun condition of the device, are combined.
摘要:
A method for operating an internal combustion engine in which a combustion characteristic is ascertained. The combustion characteristic is ascertained in a cylinder-specific manner, and one or more application functions for the operation of the internal combustion engine is/are carried out as a function of the combustion characteristic.
摘要:
A device for triggering ignition circuits is provided, a coupling being provided between a positive output stage and negative output stage of different pairs. Each positive and each negative output stage is assigned a diagnostic unit and a drive circuit.
摘要:
A device for controlling firing circuits for restraining devices, a processor and a safety IC for controlling the restraining devices being connectable to the firing circuit control, and the firing circuit control having blocking inputs and blocking registers for the blocking of groups of connectable firing circuits; the processor setting the blocking registers after switching-on (of the device) and logically linking the firing circuit control data of the blocking inputs and the blocking registers with one another, so as to block individual groups of firing circuits. Thus it is especially possible individually to block firing circuits for air bags in dependence upon the degree of occupancy and the classification of the occupants in a vehicle. Setting the blocking inputs and the blocking registers takes place shortly after switching-on (of the device), after function tests of the IC's have been conducted. Besides the blocking inputs for individual control, the firing circuit control also has blocking inputs for blocking all plus and minus output stages.
摘要:
A method for determining cylinder-specific combustion features of an internal combustion engine, the cylinder-specific combustion features being ascertained from a variable which represents the crankshaft speed, especially being ascertained from a signal of a crankshaft sensor or camshaft sensor. The cylinder-specific combustion features include a combustion position of at least one cylinder and/or a torque of the crankshaft.
摘要:
A method for calibrating an injection quantity of an injection system, using which fuel is to be injected into at least one combustion chamber of an internal combustion engine of a device, in which data of at least one zero point quantity calibration, which is carried out in an idling operation of the mechanical device, and data of at least one zero point quantity calibration, which is carried out in an overrun condition of the device, are combined.