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Method for controlling a workload of a bus system of a means of transport, and bus system and means of transport

A bus system and vehicle technology, applied in the transmission system, digital transmission system, data exchange network, etc., can solve the problems of different load levels of the bus system and inefficient utilization of the bus system

Pending Publication Date: 2021-11-02
BAYERISCHE MOTOREN WERKE AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The resulting model construction therefore often leads to a conservative, ie inefficient utilization of the corresponding bus system
Furthermore, based on such a conservative model construction during the design phase of the bus system and a later measurement of the load level in the

Method used

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  • Method for controlling a workload of a bus system of a means of transport, and bus system and means of transport
  • Method for controlling a workload of a bus system of a means of transport, and bus system and means of transport
  • Method for controlling a workload of a bus system of a means of transport, and bus system and means of transport

Examples

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Embodiment Construction

[0027] figure 1 A flow chart is shown which illustrates the steps of an exemplary embodiment of a method according to the invention for controlling the load level of a CAN bus system of a vehicle. In step 100 , first information representing a future load level of the CAN bus system is determined by means of a first evaluation unit (here a microcontroller) of the bus load manager of the CAN bus system. For this purpose, a predefined CAN bus configuration in the form of a database representing CAN bus configurations is read from a memory unit connected to the first evaluation unit by means of the first evaluation unit. In step 200 , the first evaluation unit determines, from the first information, second information representing the respective suitable data transmission time periods for a plurality of bus participants that transmit data by means of the CAN bus system. In step 300 , the first evaluation unit simultaneously transmits second information to the plurality of bus pa...

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Abstract

The invention relates to a method, a bus system (30) and a means of transport (80) for controlling a workload of the bus system (30) of the means of transport (80). The method comprises the following steps: ascertaining first information representing a current and/or future workload of the bus system (30), ascertaining second information representing respective data transmission periods for a plurality of bus subscribers (50, 55), which transmit data by means of the bus system (30), on the basis of the first information, transmitting the second information to the plurality of bus subscribers (50, 55), and the respective bus subscribers (50, 55) adapting respective data transmission periods for the plurality of bus subscribers (50, 55) on the basis of the second information, and the plurality of bus subscribers (50, 55) transmitting data within the respective adapted data transmission periods by means of the bus system (30).

Description

technical field [0001] The invention relates to a method for controlling the load level of a bus system of a vehicle, a bus system and a vehicle. Background technique [0002] Modern vehicles usually have a large number of different controllers, each of which usually uses bus systems known from the prior art, such as CAN bus systems, MOST bus systems, LIN bus systems, FlexRay bus systems, Ethernet bus systems and so on are interconnected in information technology. Furthermore, in modern vehicles a number of separate sub-buses or sub-networks are often used in order to limit the data communication, for example, to logical controllers (for example, controllers which fulfill the same function, such as the drive train or the comfort system of the vehicle). controller) group, basically restricted to the corresponding logical group. Alternatively or additionally, by using sub-buses, different bus technologies can also be used in the respective sub-buses due to different requirem...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26
CPCH04L2012/40267H04L43/0876H04L12/40176H04L12/40019H04L12/40032H04L2012/40215
Inventor R·佐尔奇M·特劳布
Owner BAYERISCHE MOTOREN WERKE AG
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