In this paper, the Hybrid Automatic Repeat Request (HARQ) scheme for Brake-by-Wire (BBW) system is presented. Recently, the use of electronic components is growing, so error signals will be encountered caused by Electromagnetic Interference (EMI).These error signals will cause system failures of BBW systems. To solve these problems in the BBW system, we design a HARQ scheme which is a combination of Forward Error Correction (FEC) scheme and Automatic Repeat Request (ARQ) scheme. FEC scheme uses Reed-Solomon (R-S) code to correct random errors and burst errors and ARQ scheme uses Cyclic Redundancy Check (CRC) code to detect errors in the systems. In this paper, the performance of FEC scheme, ARQ scheme and HARQ scheme is presented through the experiment and we see clearly how the fault tolerant logic for BBW system works.

Shi, Leilei, Li, Qing, Kim, Hunmo* - Sungkyunkwan University; Park, Manbok - Mando Co.