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CAN FD_介绍PPT

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CAN FD（CAN with Flexible Data rate）继承了CAN总线的主要特性。CAN总线采用双线串行通讯协议，基于非破坏性仲裁技术，分布式实时控制，可靠的错误处理和检测机制使CAN总线有很高的安全性，但CAN总线带宽和数据场长度却受到制约。

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Thomas Lindenkreuz

Robert Bosch GmbH

Automotive Electronics

Vector Kongress 2012

CAN FD – CAN with Flexible Data Rate

distribution, as well as in the event of applications for industrial property rights.

CAN FD – CAN with Flexible Data Rate

Automotive Electronics

Agenda

What’s CAN FD – Benefits ?

Use Cases for CAN FD

Availability of Components

CAN FD Standardization

Summary

distribution, as well as in the event of applications for industrial property rights.

CAN FD – CAN with Flexible Data Rate

Automotive Electronics

History of CAN

Bosch start development on CAN

CAN published at SAE congress Detroit

CAN introduced first in weaving machines

First CAN chips from Intel and Philips

Standardization of CAN in ISO 11898

Foundation of CAN in Automation

Introduction of TTCAN

CANopen protocol published by CiA

Invention of CAN FD (ISO 11898-7)

First Mercedes-Benz S-class with CAN

Specification of several

ISO 11898-x:

data link layer

high-speed physical layer

fault-tolerant physical layer

TTCAN

low-power mode

selective wake-up

Source: CiA

CAN patent filed

Automotive Electronics

distribution, as well as in the event of applications for industrial property rights.

CAN FD – CAN with Flexible Data Rate

Sensors & Embedded

Control

Multi Media / Driver Assistance

FlexRay

Implementation costs per node

Data-rate [bit/s]

100k

100M

10M

10k

CAN

DSI PSI

LIN

MOST

150

10G

APIX

2014-15: IEEE RTPGE .

2015-16 .

2012: BroadR-Reach

Automotive Future Communication System Landscape

Seamless upgrade path

Ethernet Technology

CAN FD

Seamless upgrade path

CAN Technology

distribution, as well as in the event of applications for industrial property rights.

CAN FD – CAN with Flexible Data Rate

Automotive Electronics

Approaches to increase Data Rate

Payload transmitted at higher bit rate

Arbitration

Phase

Arbitration

Phase

Standard CAN

Frame

Arbitration

Phase

Arbitration

Phase

CAN FD

Frame

Implications of higher bit rate

 Changes limited to HW of protocol controller

 Transceivers for higher data rate qualified

 Legacy SW fully compatible

Implication of larger payload

 SW update necessary

.......................

Arbitration

Phase

Arbitration

Phase

1. Increase

Bit Rate

CAN FD

Frame

Data

Phase

2. Increase

Payload

up to 64 Bytes payload in Data Phase (instead of 8 Byte)

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申增浩

2023-07-28

这个PPT对CAN FD的介绍很详实，让我对这个主题有了更深入的了解。

CAN FD_介绍PPT

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