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:
In a method of controlling at least one autonomously driven vehicle, such a vehicle is driven on a restricted traffic surface. For this purpose, the autonomous vehicle has a driving device for implementing driving commands on the basis of fed signals. The driving commands relate to the driving direction as well as to the driving speed. The vehicle detects its actual position by means of a position indicating device, and transmits its position to an operations management center. In the operations management center, a route profile to be driven is determined from position signals by means of definable criteria and is transmitted to the driving device of the vehicle. Driving commands required for driving the route profile are generated in the vehicle by the driving device.
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:
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:
A control system for a vehicle having an electronically actuated drive train includes a coordination level which is assigned to a system control device, and in which setpoint values are generated from state variables (ZG) of the vehicle and from driver's requests. Actuation signals for actuating actuators are generated from the latter. An execution level, which is subordinate to the coordination level, has actuators for executing the actuation signals. An axle electronic module for activating at least one brake actuator which is assigned to the chassis is arranged in the region of the steerable vehicle axle. The axle electronic module is connected to the coordination level in order to receive transmittal setpoint values, and determines actuation signals for actuating the respective axle actuator from the setpoint values. The axle electronic module is connected to an electronically actuated steering system for transmitting the actuation signals.
摘要:
A device is provided for predictively detecting and avoiding motor vehicle collisions, including a control device, a sensor system for sensing obstacles in the surroundings of the vehicle, and a signal transmitter system for audibly and/or visually signaling a significant risk of collision between the vehicle and an obstacle. In order to increase the field of application of such a device, the vehicle can be a utility vehicle, the sensor system being divided into a front sensor arrangement which is arranged in the region of the front of a vehicle, and a rear sensor arrangement which is arranged in the region of the rear of a vehicle. The front sensor arrangement is connected to the control device via a data bus, while the rear sensor arrangement is connected to the control device via a power line communication.
摘要:
The invention relates to a method for logging messages on a data bus and temporarily storing the sent messages in a cyclically overwritable volatile storing means. The temporarily stored messages can be examined in a targeted manner for attributes of interest by using a verification program. A storage of the temporarily stored messages in a non-volatile second storing means can be initiated by means of definable trigger events that, for example, are formed from individual or a number of attributes of the messages. To this end, the occurrence of the defined trigger event is determined by a monitoring unit, and the data content of the volatile storing means are subsequently transferred into the storage locations of the non-volatile storing means.The principal advantage achieved with the above method resides in the possibility of backtracking the bus traffic. The exchanged messages may be backtracked and thus provide for the possibility to determine from which process and from which control device was the error message sent on the bus. This assists in a decisive manner in the error-seeking in complex communications networks. By means of the backtracking of the error message or with the analysis as to which message has eventually triggered an error in the communications network, it may be ascertained which process is responsible for the error and which program step triggered it. The error-seeking in the software programming of complex control device combination is thereby decisively facilitated.
摘要:
A utility vehicle has an electronically controlled drive train which has at least one drive unit, one steering system and one braking system. In addition, the motor vehicle has a maneuvering assistance system with a display device, an input device and a control system. The display device displays an actual orientation and an actual position of the vehicle as well as the relatively close surroundings of the vehicle on a monitor. The input device inputs a desired orientation and a desired position for the vehicle. The control system processes a maneuvering algorithm and at the same time actuates the drive train to transfer the vehicle from its actual orientation and actual position into its desired orientation and desired position taking into account the vehicle surroundings.
摘要:
In a device for actuating vehicle assemblies, vehicle movement data is fed to a central arithmetic unit which generates the actuation signals for the vehicle assemblies. The central arithmetic unit has a plurality of software modules, a longitudinal dynamics software module which processes a component of the predefined vehicle movement data in the longitudinal direction of the vehicle, and a lateral dynamics software module which processes a component of the vehicle movement data in the lateral direction of the vehicle.
摘要:
A safety device for, in particular, nonrailborne vehicles, having a monitoring device to monitor a hazardous area and additionally the road area, located on the opposite side of the hazardous area viewed from the vehicle and adjoining the hazardous area. Obstacles in the hazardous area and/or road area are detected. An output signal is brought about if an obstacle which prevents the hazardous area being traveled through completely has been detected.