摘要:
The invention relates to an Ultrasound Sensor, especially for a vehicle and the passenger compartment thereof, comprising a can-shaped housing, a housing base, a housing closure and a sensor element arranged at the base inside the housing, and in the area of the housing closure there is arranged a contact device which is attachable, in locally fixed fashion, inside housing; the contact device presenting, in the direction of the longitudinal axis, a penetrating recess and being connected, in electrically conductive fashion, in at least one contact point with at least one electrode of the sensor element by means of thick-stranded wire. The invention also relates to a method for producing the Ultrasound Sensor.
摘要:
A park brake system for vehicles is provided that has an actuator with an electric drive motor (36, 38) and an electronic control unit. A reduction gear has an input connected to the output of the electric motor and a pull force output member (56) for connection to mechanical brakes of the vehicle. The reduction gear has an input connected to the output of the electric motor. A command unit is connected to the electronic control unit. The reduction gear comprises a first reduction train and a second reduction train. The first reduction train includes a worm gear (42, 44) and the second reduction train includes a threaded spindle (46) and a screw nut (50) engaged with the spindle (46). The worm gear connects the spindle (46) to the output of the electric motor (36, 38). The pull force output member (56) is connected to the screw nut (50). The two-step reduction gear ensures the required high rate of reduction to generate high pull forces with a relatively compact electric motor. The worm gear used in the first reduction train has a high efficiency, and the threaded spindle and screw nut in the second reduction train allow for a self-locking feature.
摘要:
A method of making a device for establishing an electric contact with conductors of an electric apparatus includes the following steps: forming a one-piece leadframe from sheet metal; securing the leadframe pattern to an electrically insulating carrier; severing the conductor into individual conductor strips; mounting an electric and/or electronic component on the carrier; and electrically contacting the components with selected conductor strips.
摘要:
A device for detecting the movement of a movable component in that the position signals furnished by two position sensors are added to form a signal that is conducted through a line to an evaluation arrangement. The position ranges associated with the position sensors have an overlap region. Different discrete values are assigned to the position signals and can be evaluated easily in the evaluation arrangement.
摘要:
The invention is directed to a method for controlling the no-load speed of an internal combustion engine wherein the position of the throttle flap in the intake tube of the engine is varied as a function of the speed of the engine and of a position signal defining the position of the throttle flap. The variation of the throttle flap position takes place, however, only whenever the throttle flap has assumed a specific, predeterminable position and whenever the engine speed has remained virtually constant over a likewise predeterminable period of time. An embodiment in the form of a flow chart is described by means of which the method according to the invention can be realized.
摘要:
Undesired deposits accummulating on the surface of a temperature-varying airflow sensing resistor are burned off periodically by increasing the current through it. To eliminate errors caused by a reversal in the direction of airflow, a temperature independent resistor is placed downstream of the temperature-varying resistor and is maintained at the same operating temperature as the latter.
摘要:
The subject of the present invention is a motor control system having a monitoring circuit for monitoring PWM control for a DC electric motor, the PWM control comprising a power end stage having at least one field effect transistor, which controls the current at the DC electric motor. The motor control system is designed to monitor the current at the DC electric motor. The motor control system detects the voltage drop across the field effect transistor and comprises a temperature sensor for detecting the temperature of the field effect transistor. Furthermore, the motor control system is designed to determine the resistance of the field effect transistor from the detected temperature thereof, and to determine the current at the DC electric motor from the resistance of the field effect transistor and from the voltage drop across the field effect transistor.
摘要:
The belt retractor for an occupant restraint system has a frame, a belt spool having a pair of flanges and rotatably mounted in the frame and a locking mechanism for selective blocking of the belt spool. A wheel member provided with an external toothing is mounted on one flange of the belt spool. A locking pawl is biased by a spring that engages with the wheel member. During the normal operating state of the belt retractor, the locking pawl is held by means of a solenoid so that it is disengaged from the wheel member.
摘要:
A method for winding a stator for a brushless direct current motor, which has a stator body (9) with a predetermined number of to be wound stator teeth (3) with the stator teeth (3) respectively being wound with two coils (W1, W3; W2, W4) which are magnetically coupled and which facilitate by supply of current with variable directional orientation the generation of opposite magnetic fields, whereby each of the two coils (W1, W3, W2, W4) comprises a predetermined number of in parallel arranged conductors. The stator teeth (3) are respectively wound simultaneously in several partial winding steps, with two conductors (25, 27) or with an even number of 2n conductors, whereby one of the two conductors (25, 27) or n conductor of the 2n conductors is allocated to the one coil and the other of the two conductors (25, 27) or the other n conductor of the 2n conductors are allocated to the other coil and whereby a pre-determined number of partial winding steps is performed until the pre-determined number of conductors per coil (W1, W3; W2, W4) has been reached.
摘要翻译:一种用于卷绕无刷直流电动机的定子的方法,该定子用定子齿(3)分别具有预定数量的与定子齿(3)缠绕的定子齿(3)的定子体(9)缠绕在两个线圈 ,W 3; W 2,W 4),其通过提供具有可变定向取向的电流而产生相反的磁场,由此产生相反的磁场,由此两个线圈(W 1,W 3,W 2,W 4 )包括预定数量的并联布置的导体。 定子齿(3)分别以两个导体(25,27)或偶数2n个导体在几个部分卷绕步骤中同时卷绕,由此两个导体(25,27)中的一个或2n个导体 导体分配给一个线圈,并且两个导体(25,27)中的另一个或2n导体的另一个n导体分配给另一个线圈,由此执行预定数量的部分绕组步骤,直到预先 每个线圈的导体数量(W 1,W 3; W 2,W 4)已达到。
摘要:
The invention relates to a drive for a flap provided on a vehicle, especially an engine hood. The drive comprises an electric motor, an actuation shaft that is connected to the flap, and a reduction gear by means of which the rotor of the electric motor is coupled to the actuation shaft. The drive further comprises an energy accumulator by means of which the actuation shaft can be driven independently of the electric motor. The reduction gear is configured in such a way that the actuation shaft is driven in a rotational direction only by the energy accumulator and the electric motor drives the actuation shaft in an opposite rotational direction, thereby supplying to the energy accumulator an energy that is needed to drive the actuation shaft in the rotational direction. The invention further relates to a pedestrian protection means provided on a vehicle and equipped with such a drive.