Overview
The FlexRay Brake-By-Wire reference design shows FlexRay capabilities such as high communication speed and channel fault detection.
- It uses the NXP® MC9S12XDP512 MCU for the pedal node and MC56F8346 DSC for the brake/wheel node; FlexRay connectivity of both nodes is based on the MFR4200 FlexRay communication controller
- The braking caliper is controlled by PMSM using Vector Control technique while the spinning wheel representing a real tire is powered by a BLDC motor
- The boards of the 2 engines are interconnected by a CAN bus
- Uses FlexRay baud rate of 10Mb/s per channel but both channels carry the same data, which enables demonstration of the FlexRay channel fault detection feature
Features
PMSM using Vector Control technique
FlexRay communication speed 10Mb/s per channel
Dual channel connection
Channel fault detection
Re-connection feature
FreeMASTER tool based control pages
Block Diagram
![RD56F8300FRBBWBLK.gif RD56F8300FRBBWBLK.gif](/t5/image/serverpage/image-id/110904i653E62E22BF9FEF2/image-size/large?v=v2&px=999)
Board
![RD56F8300FRBBWIMG.jpg RD56F8300FRBBWIMG.jpg](/t5/image/serverpage/image-id/110943i0024BC2C12BE210F/image-size/large?v=v2&px=999)
Design Resources