摘要:
In a method for operating a motor vehicle, an actuation speed of a power input element, e.g., an accelerator pedal, is detected and evaluated, and a drag torque is influenced as a function of the detected actuation variable. At least one measure which influences the drag torque is carried out if the following conditions are all satisfied: (i) an actuation speed is less than a limiting value, (ii) a position of the input element is greater than zero, and (iii) the power input element is actuated in the direction of a power reduction.
摘要:
A device for controlling at least one electrical load and a control device therefor. The electrical load includes a first load connection and a second load connection. The first load connection is able to be connected to an operating-voltage potential via a first controlled switch, and the second load connection is able to be connected to a reference voltage potential via a second controlled switch.
摘要:
An electronic device, in particular a control unit including an electromagnetic actuator, whose coil is at the same time part of a voltage transformer. The coil is connected through a switch to an operating voltage potential or to a reference potential. A capacitor is also provided. The coil, the capacitor and the switch constitute a voltage transformer.
摘要:
The electrically conducting cable for making an electrical connection between consumers and a voltage supply device (13) has a single conductor made of electrically conductive material and a common plug (11) at one end of the single conductor for connection to a common voltage supply device (13). The single conductor is subdivided into respective regions (A,B,C) of different cross-sections, which become progressively smaller in a direction along the single conductor from the plug (11) toward the consumers (1,2,3,4,5,6,7,8). Each region is connected to at least one consumer at a branch point at the end of the region, advantageously via an overload-protected semiconductor switch, so that all the consumers are supplied via the single conductor.
摘要:
The electronic circuit for supplying a voltage at a common output terminal (KI.U) has a number of supply circuits, each of which includes a source (B1, B2, . . . , Bn) of electric current and transistors (T10,T11; T20,T21; . . . ; Tn0,Tn1) connected with the source (B1, B2) to form an analog switch for gating the electric current, each supply circuit being connected with the common output terminal (KI.U); and a circuit device for controlling a potential at the gate electrodes of the transistors (T10,T11; T20,T21; . . . ; Tn0,Tn1) in each supply circuit, whereby the supply voltage (UV) is provided by a selected one of the supply circuits. In a preferred embodiment the circuit device for controlling the gate electrode potentials includes a switch (Z) connected between a current supply and the gate electrodes of the transistors in each of the supply circuits by means of at least one resistor and a Zener diode arranged in a blocking direction with another transistor (T12) connected between the Zener diode and the at least one resistor.
摘要:
A device for controlling at least one electrical load and a control device therefor. The electrical load includes a first load connection and a second load connection. The first load connection is able to be connected to an operating-voltage potential via a first controlled switch, and the second load connection is able to be connected to a reference voltage potential via a second controlled switch.
摘要:
A voltage conversion device is disclosed which is to be used particularly in motor vehicles. For voltage conversion, a plurality of small voltage converters are connected as partial converters parallel to one another. By sequentially turning on the individual partial converters and superposition of the output current, a uniform output current at low input load is attained.
摘要:
It is known for a central electronic control unit in a motor vehicle to exchange data through a serial data bus with other control units, e.g. those for fuel injection, ignition timing, and braking. Prior art systems transmitted these data automatically, regardless of whether all these parameters were relevant to the actual operating state of the vehicle, thereby resulting in heavy loading of the serial bus. The present invention determines which parameters are irrelevant to the current operating state and suppresses transmission, or even calculation, of these irrelevant parameters.
摘要:
To reduce the space of a control device having a power circuit and an electronic component, the power circuit including components to which higher currents are applied, in particular currents in the range of 5 A to 70 A, and the electronic component including a switching logic realized on a circuit board, the electrical connections between the components of the power circuit are realized by a single-layer pressed screen. Receptacles for the contact pins of the components are formed in the pressed screen. The receptacles are arranged and formed in such a way that the components are held in frictional engagement in the receptacles and are electrically contacted via the contact pins.
摘要:
The invention concerns a method and a device for determining parameters of a transmission link (2) which is connected to a transmission/reception device (1A; 1B) on the basis of an echo signal of a transmission signal which is transmitted onto the transmission link (2) with at least one individual pulse. The echo signal is first captured. The echo components of the echo signal are shortened by applying a preferably adjustable shortening filter (19) to the captured echo signal. The invention also proposes applying an adjustable further filter (18) to the echo signal, and adjusting the adjustable further filter (18) and preferably also the shortening filter (19) to select an effective central frequency of the at least one individual pulse. The parameters of the transmission link (2) are determined by evaluating the filtered echo signal on the basis of the temporal position and/or amplitude of at least the echo component from the end of the transmission link (2).