摘要:
A redundant data bus system has two data buses between which at least two failsafe control devices are connected. The two data buses operate with the same data bus protocol at essentially the same transmission frequency, and safety-related control messages are transmitted in parallel via both data buses and processed in the control devices. Each control device performs a separate control task via assigned control software. Each control device has two microcomputers which operate independently of one another and which have software for both the first and the second control tasks. When one control device fails, the control task can also be performed by the other. One data interface is arranged between the two microcomputers, via which result data calculated from the safety-related control messages can be exchanged and compared with one another. Based on such comparison a decision means determines which microcomputer or control device carries out a control task.
摘要:
The invention relates to a method for the predictive determination of the change in the yaw rate (ψ) of a vehicle. According to said method, the progress of the build-up of the braking pressures (p1 to p4) of the wheel brakes is monitored, and the change in the yaw rate (ψ) of the vehicle is determined in a predictive manner from the progress of the pressure build-up before the vehicle rotates around the vertical axis thereof. The inventive method allows the driving stability of a vehicle to be better regulated.
摘要:
The invention relates to a utility vehicle, in particular a truck with or without a trailer, having an on-board electric power system (1) for supplying power to electrical loads of the vehicle, having a plurality of lighting units (2) which are connected to the on-board electric power system (1) and which emit light when they are activated, and having a plurality of switches (3) for activating the lighting units (2). The switches (3) advantageously activate at least some of the lighting units (2) by means of PLC via the on-board electric power system (1).
摘要:
A method for determining the geometry of a route section, using route points representing information about the route section, wherein route section data between at least three adjacent route point s are calculated, for determining a maximum possible speed for a vehicle traveling along the route section, is characterized in that a check is made to ascertain whether two adjacent route points f all below respectively predeterminable distances from one another and in the affirmative route section data through the se route points are calculated as a) straight line if the route points are arranged in a straight strip of predeterminable width, or b) arc of a circle if the route points are arranged in a constantly curved strip of predeterminable width and the tangent to the, in the direction of travel, first one of the route points is essentially located on a direction vector of the vehicle, or c) clothoid if the route points are arranged in a progressively curved strip of predeterminable width, wherein the geometry of the route section in the region of said route points is in each case determined in the form of the calculated route section data.
摘要:
A system and a method for directionally stabilizing a vehicle with the aid of a steering system used for influencing a steering angle of the vehicle steered wheels and a stabilizing system which controls the steering system for increasing the vehicle directional stability is provided. The stabilizing system is characterized in that the stabilizing system controls the steering system according to the lateral force factor of at least one steered wheel for defining the steering angle stabilizing the vehicle, wherein the stabilizing system adjusts the slip angle of the steered wheels in such a way that the lateral force factor does not substantially exceed the maximum range thereof.
摘要:
The invention relates to an array of control devices having a plurality of control devices (1-3, 20-23) which are interconnected via a first data bus (4), in a means of transportation, control devices (1-3; 20-23) which are of redundant configuration with respect to a control function being provided, and in each case a data bus isolating switch (5) being assigned to the control devices (1-3; 20-23) which are of redundant configuration, said data bus isolating switch(s) connecting or disconnecting the data bus (4) as a function of an evaluation signal. In order to optimize the redundant array, each of these data bus isolating switches (5) is connected to a signal line of at least one further redundant control device (1-3; 20-23), a further redundant control device (2, 3; 21; 23) transmits an evaluation signal to the data bus isolating switch (5) which is assigned to a first redundant control device (1; 20; 22), the evaluation signal being the result of functional checking of the further redundant control device (2, 3; 21; 3) with respect to the first redundant control device (1; 20; 22). The data bus isolating switch (5) of the first redundant control device (1; 20; 22) disconnects the data bus (4) as a function of the result of a logic circuit, at least one input signal of the logic circuit being formed by the at least one evaluation signal.
摘要:
An array of control devices having a plurality of control devices (1-3, 20-23) which are interconnected via a first data bus (4), in a means of transportation, control devices (1-3; 20-23) which are of redundant configuration with respect to a control function being provided, and in each case a data bus isolating switch (5) being assigned to the control devices (1-3; 20-23) which are of redundant configuration, the data bus isolating switch(s) connecting or disconnecting the data bus (4) as a function of an evaluation signal. In order to optimize the redundant array, each of these data bus isolating switches (5) is connected to a signal line of at least one further redundant control device (1-3; 20-23), a further redundant control device (2, 3; 21; 23) transmits an evaluation signal to the data bus isolating switch (5) which is assigned to a first redundant control device (1; 20; 22).
摘要:
A brake control system for a vehicle, in particular a commercial vehicle, includes a service brake for braking the wheels of the vehicle. To increase operating safety, the service brake is equipped with an electronically actuatable brake unit for each wheel for actuating the brake of the respective wheel. Two redundantly connected central control devices are connected via control lines to the brake units so as to actuate the brake units independently of one another.
摘要:
A semitrailer train having a coupling part assigned to the towing vehicle and a coupling part assigned to the semitrailer. A control device for controlling components of the semitrailer is provided in the towing vehicle data lines transmit the control data and power supply lines to the components. The coupling part assigned to the towing vehicle is a fifthwheel pickup plate and the coupling part assigned to the semitrailer is a kingpin which matches said coupling part. An alternating voltage generator arrangement in the vehicle provides a modulated carrier signal and a transformer coil is arranged in the fifthwheel pickup plate of the towing vehicle in order to transmit the carrier signal with the control data modulated onto it to a transformer coil in the region of the kingpin of the semitrailer.
摘要:
In a module for detecting the docking of a vehicle, changes of vehicle engine torque and rotational wheel speed of the vehicle are determined as a function of time. It is checked whether the change of the engine torque is >>0 and the change of the rotational wheel speed is