摘要:
In a process and in a device for monitoring a fuel delivery system, in particular a common rail system for a diesel engine, a defect in the delivery system is found when a signal from a temperature sensor and/or a pressure sensor deviates from a predetermined value.
摘要:
A sheathed-element glow plug for self-igniting internal combustion engines has an electrical heating element which projects into a combustion chamber of the internal combustion engine, and a current feed-through for providing a heating current for the heating element through an opening in the combustion chamber. A switch is positioned in the region of the current feed-through, and the heating current may be controlled by the opening and closing of the switch.
摘要:
An encapsulated circuit device has a substrate, components configured on a substrate surface portion of a component side of the substrate, an encapsulation, at least one electrical contact having an outer portion projecting out of the encapsulation and an inner portion provided in the circuit device that is electrically connected to the substrate. The encapsulation includes a rigid outer encapsulation, which extends completely around the substrate, the components and the inner portion of the at least one electrical contact, as well as a compressible deformation absorption layer, which is provided between the components and the outer encapsulation and at least completely covers the substrate surface portion on which the components are configured.
摘要:
A method and a device for monitoring at least one output stage for an inductive load using a current regulator and an analysis device are described. A short circuit to a power supply or to ground is detected by comparing at least one current value in a switching phase of the at least one output stage with at least one current value in a free-wheeling phase of the at least one output stage.
摘要:
The starting device for starting an internal combustion engine includes a starter motor (12) with a pinion for cranking the internal combustion engine; a voltage source (40) for the starter motor; a starter relay (14) for connecting and disconnecting the voltage source to and from the starter motor and an electronic relay (32) for triggering the starter relay according to control signals from the motor controller (50). The electronic relay (32) is mounted on the starter motor or in the starter relay. The electronic relay (32) includes a power module (34) with a redundancy circuit including two transistors (144', 144") coupled with each other by a logic circuit for preventing starter operation when one of the two transistors is defective.
摘要:
A method and a device for monitoring at least one output stage for an inductive load using a current regulator and an analysis device are described. A short circuit to a power supply or to ground is detected by comparing at least one current value in a switching phase of the at least one output stage with at least one current value in a free-wheeling phase of the at least one output stage.