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Baud rate adaptive method and device, computer equipment and readable storage medium

A baud rate, self-adaptive technology, applied in the field of communication, can solve problems affecting the normal communication of ECU, low efficiency, etc.

Active Publication Date: 2021-05-04
北京万集智能网联技术有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above method of baud rate adaptation is inefficient and may affect the normal communication of ECU

Method used

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  • Baud rate adaptive method and device, computer equipment and readable storage medium
  • Baud rate adaptive method and device, computer equipment and readable storage medium
  • Baud rate adaptive method and device, computer equipment and readable storage medium

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Embodiment Construction

[0050]In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0051] The baud rate adaptive method, device, computer equipment and readable storage medium provided in the embodiments of the present application can improve the baud rate adaptive efficiency of the ECU on the CAN FD bus. The technical solutions of the present application will be described in detail below through embodiments and in conjunction with the accompanying drawings. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0052] The baud rate adaptive method provi...

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Abstract

The invention relates to a baud rate self-adaption method and device, computer equipment and a readable storage medium. The method comprises the steps: monitoring a CAN FD bus, and measuring the time interval between adjacent level change edges in an adaptive message sent by a reference ECU to the CAN FD bus within a preset measurement time period, wherein an ID field of the adaptive message comprises a preset number of continuous and identical logic bits; determining a minimum time interval and a maximum time interval from the time intervals, obtaining a Baud rate of a data domain of the CAN FD network message according to the minimum time interval, and obtaining a Baud rate of a target domain of the CAN FD network message according to the maximum time interval; and setting network configuration parameters of the target ECU according to the baud rate of the data domain and the baud rate of the target domain, so that the target ECU and the reference ECU transmit the CAN FD network message through the CAN FD bus. By adopting the method, the Baud rate adaptive efficiency of the ECU on the CAN FD bus can be improved.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a baud rate adaptive method, device, computer equipment and readable storage medium. Background technique [0002] CAN is the abbreviation of Controller Area Network, and the CAN bus protocol has become a standard bus for communication between automotive ECUs (Electronic Control Units, electronic control units). CAN FD (CANwith Flexible Data rate) is based on CAN, which makes up for the constraints of CAN bus bandwidth and data field length, and better meets people's requirements for data transmission bandwidth. [0003] Similar to CAN, the baud rates of all ECUs on the CAN FD bus must match, otherwise they cannot communicate normally. At present, the ECUs on the CAN FD bus mainly realize the self-adaptation of the baud rate through the adaptation method. The adaptation method is to try to set the network configuration parameters of the ECU in sequence accord...

Claims

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Application Information

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IPC IPC(8): H04L12/40H04L12/24
CPCH04L12/4013H04L41/0803H04L2012/40215Y02P90/02
Inventor 里勇亮韩茂强赵昱阳王庆飞
Owner 北京万集智能网联技术有限公司
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