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The EU emergency call (eCall) system is used as a vehicle emergency telematic system to reduce the fatalities and save more lives in vehicular incidents. We have designed and implemented the CRC module for the in-vehicle system (IVS) of the EU eCall on an FPGA device. As the CRC is a crucial part of the system to detect bit errors during the transmission, this paper presents the hardware design procedures of the CRC module. The system reads the 1120 serial input bits of the Minimum Set of Data (MSD), calculates the 28-bits of the CRC parity bits, and generates the MSD appended with CRC as the output signal that is consisting of 1148 serial bits. The system is designed in Verilog HDL, compiled, synthesized, and simulated for different MSDs. The results are shown and analyzed for varied applied MSDs. The flowchart of the implemented algorithm is illustrated and discussed.

Nocolok® flux brazing is becoming widely accepted as the principal manufacturing process for brazed aluminum heat exchangers in the automotive industry. This paper summarizes brazing profiles, production results, and quality control details about the Nocolok® flux brazing process in relation to its use with heavy duty heat exchangers and oil coolers. The results presented suggest that Nocolok® flux brazing is a relatively forgiving process. Acceptable products were brazed using heat rates and temperatures beyond standard requirements suggesting manufacturers will have more flexibility to braze large size heavy duty heat exchangers with the Nocolok® process. Pre-brazed gaps of 0.2 mm could be tolerated in the joining of parts while in some cases, gaps up to 0.5 mm were satisfactorily brazed by applying filler alloys such as Al-Si in paste or sheet form to the joint gaps.