摘要:
The present invention relates to a method for improving parking precision in driver assistance systems comprising an electronic compass (30). The following method steps are performed: An electronic compass (30) is coupled to the driver assistance system. Rolling radii are calibrated on tyres (20, 22) mounted on the vehicle (10) on the basis of path pulses (36, 38), a track width (24) and a distance d WIC covered per wheel pulse (36, 38). A change in angle Δ φ WIC is then determined, whereupon an absolute change in angle Δ φ Kompass is performed using the electronic compass. Finally a corrective factor is determined for the distance covered per wheel pulse.
摘要:
The invention relates to a multi-phase direct voltage converter and a method for controlling a multi-phase direct voltage converter having at least two parallel, time-offset controlled coils (3, 4; 41, 42), at least one control unit (7) for actuating the coils (3, 4) and at least one magnetically sensitive sensor element (8; 8') for registering a magnetic field generated by the current flow through the coils. According to the invention, the control unit (7) controls the current flow through the coils (3, 4; 41, 42) depending on an output signal of the at least one sensor element (8).
摘要:
The invention relates to a method for detecting the motion of an element relative to a sensor assembly during which the direction of motion is identified. To this end, a measurement signal is increased or decrease in predetermined measuring intervals according to the direction of motion, and a direction of motion signal is generated once a predetermined threshold value is exceeded. Preferably, a counting logic circuit (6) increases a counter by a binary quantity in one direction (2) and decreases the counter (6) by a binary quantity in the other direction (3). A detection of measurement signals, which do not lead to an exceeding of the predetermined magnitude of the threshold value due to an increase or decrease in a measuring interval, involves a detection of the element.
摘要:
The invention relates to a measuring device (1) for contactlessly detecting a ferromagnetic object (4, 5). The measuring device comprises a Hall element (3) and at least one permanent magnet (2), an air gap (6) being located between said Hall element and said permanent magnet. The permanent magnet (2) also has a soft magnetic component (7) on at least one of its front sides, said component being located between the permanent magnet (2) and the Hall element (3).
摘要:
The invention relates to a method for maintaining a prescribed voltage in a battery-supported vehicle electrical system during operation of an electrical starter motor comprises steps of operating the electrical starter motor in the vehicle electrical system during a first time segment in series with a limiting resistor in order to limit the current flowing through the starter motor and operating the electrical starter motor in the vehicle electrical system during a second time segment having a reduced limiting resistor in order to increase the power converted by the starter motor. A transition from the first to the second time segment is thereby controlled on the basis of characteristic electrical values scanned for the limiting resistor during the first time segment.
摘要:
The invention relates to a method for operating a starter (203) of a vehicle, according to which a physical quantity is measured, characterized in that, depending on the measured physical quantity, a starter current of the starter (203) is limited or not limited, wherein, in the event that the starter current is limited, the limitation is ended after a predetermined time. The invention further relates to a device (201) for operating a starter of a vehicle and to a control program.
摘要:
The invention relates to an integrated circuit for transferring information, having a substrate (1), at least one Hall element (2) integrated in the substrate (1) or arranged on the substrate (1), a first coil (4) which is arranged substantially concentrically with respect to the Hall element (2), is isolated electrically from the latter and is arranged at a distance from the Hall element (2) in the vertical direction, and at least one second coil (6) which is arranged substantially concentrically with respect to the Hall element (2), is isolated electrically from the latter and is arranged at a distance from the Hall element (2) and the first coil (4) in the vertical direction, wherein the first coil (4) and the second coil (6) are connected in series in such a way that the result is a current flow in the same direction in the coils (4, 6).