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updated the TSAL-schematic

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Hamza Tamim 2025-05-05 20:46:23 +02:00
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2 changed files with 25 additions and 26 deletions
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TSAL-schematic/TSAL-schematic.pdf
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TSAL-schematic/TSAL-schematic.tex
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@ -38,28 +38,27 @@
\section{TS\_Error Latching} \section{TS\_Error Latching}
See: \hyperlink{./Documents/Master_FT25.pdf.2}{AMS Master - TSAL Logic} \\ See: \hyperlink{./Documents/Master_FT25.pdf.2}{AMS Master - TSAL Logic} \\
Once the state of $\overline{\mathrm{TS\_Error}}$ is reached for more then $1s$ (to prevent noise from causing an error), the latch U8 (74LVC1G74 \cite{latch_datasheet}) will be triggered. Once the state of $\overline{\mathrm{TS\_Error}}$ is reached for more then $1s$ (to prevent noise from causing an error), the latch \texttt{U8} (74LVC1G74) will be triggered.\cite{latch_datasheet}
This cannot be reset, unless a LVS power cycle is carried out. The backup pull-down resistor R9 for discharging the capacitor can also be placed if the CLR pin does not discharge fast enough. This cannot be reset, unless a LVS power cycle is carried out. The backup pull-down resistor \texttt{R9} is for discharging the capacitor, it can be placed if the \texttt{CLR} pin does not discharge fast enough.
\subsection{IMD Latching} \subsection{IMD Latching}
\begin{itemize} See: \hyperlink{./Documents/Master_FT25.pdf.8}{AMS Master - SDC Latching} \\
\item The \texttt{IMD\_OK} signal is pulled high approximately 1.5 seconds after startup for the IR155-3204 IMD. \cite{imd_datasheet}
\item Therefore the Power-on Reset (PoR) lasts approximately 2 seconds. The \texttt{IMD\_OK} signal is pulled high approximately 1.5 seconds after startup for the IR155-3204 IMD. \cite{imd_datasheet} Therefore the Power-on Reset (PoR) lasts approximately 2 seconds.
\end{itemize}
\subsection{AMS Latching} \subsection{AMS Latching}
\begin{itemize} See: \hyperlink{./Documents/Master_FT25.pdf.8}{AMS Master - SDC Latching} \\
\item The \texttt{AMS\_OK} signal is pulled low until the following conditions are met:
\begin{itemize} The \texttt{AMS\_OK} signal is pulled low until the following conditions are met:
\item The AMS Master communicates with all six AMS Slaves, each providing valid voltage and temperature measurements. \begin{itemize}
\item The AMS Master communicates with the shunt sensor (IVT-S-300-U3-I-CAN2-12/24) \item The AMS Master successfully communicates with all six AMS Slaves, each providing valid voltage and temperature measurements.
\end{itemize} \item The AMS Master successfully communicates with the shunt sensor (IVT-S-300-U3-I-CAN2-12/24)\cite{shunt_datasheet}
\end{itemize} \end{itemize}
\begin{center} \begin{center}
\begin{circuitikz}[] \begin{circuitikz}[]
% LEGEND % LEGEND
\draw[green!50!black] (0,2) -- ++(1,0); \draw[green!50!black] (3,2) -- ++(1,0);
\draw (1,2) node[right]{$0.13mm^2$ unshielded - RS PRO 8724476, 2A}; \draw (4,2) node[right]{$0.13mm^2$ unshielded - RS PRO 8724476, 2A};
% IMD % IMD
\node[draw, minimum width=1.5cm, minimum height=1cm, label=above:IR155-3204] (IMD) at (0,0) {IMD}; \node[draw, minimum width=1.5cm, minimum height=1cm, label=above:IR155-3204] (IMD) at (0,0) {IMD};
@ -102,8 +101,8 @@ This cannot be reset, unless a LVS power cycle is carried out. The backup pull-d
See: \hyperlink{./Documents/Master_FT25.pdf.12}{AMS Master - AIR Relay State Detection} \\ See: \hyperlink{./Documents/Master_FT25.pdf.12}{AMS Master - AIR Relay State Detection} \\
The relay state is measured through a set of voltage dividers and window comparator circuits. The relay state is measured through a set of voltage dividers and window comparator circuits.
The \texttt{Closed} signal is used for the state detection logic (which controls the TSAL green LEDs). When the aux cable are open, it is the same as the $\overline{\mathrm{Closed}}$ state, The \texttt{Closed} signal is used for the state detection logic. When the aux connection is open, it is the same as the $\neg$\texttt{Closed} state,
which will keep the green TSAL off. The "short to GND" state can be ruled out by the comparator which compares the signal with a \SI{0.3}{\volt} reference. \\ which will keep the green TSAL off. The "short to ground" state can be ruled out by the comparator by comparing the signal with the \SI{0.3}{\volt} reference. \\
\noindent See: \hyperlink{./Documents/Master_FT25.pdf.14}{AMS Master - Precharge State Detection} \\ \noindent See: \hyperlink{./Documents/Master_FT25.pdf.14}{AMS Master - Precharge State Detection} \\
@ -112,13 +111,12 @@ Here, the TS voltage on the inverter side is measured to check whether the prech
This signal is then compared with the AIR+ and precharge control signal to check if a mismatch is present. This signal is then compared with the AIR+ and precharge control signal to check if a mismatch is present.
The rule T11.9.2 does not apply here since no additional wires are used (all circuits are integrated on the PCB.) The rule T11.9.2 does not apply here since no additional wires are used (all circuits are integrated on the PCB.)
\newpage
\subsection{TS\_Off / TSAL\_Green} \subsection{TS\_Off / TSAL\_Green}
See: \hyperlink{./Documents/DC.pdf.1}{Discharge Circuit} \\ See: \hyperlink{./Documents/DC.pdf.1}{Discharge Circuit} \\
The \texttt{TS\_Off} signal (also labeled as \texttt{TSAL\_Green} in the schematics) is transmitted to the TSAL system via a dedicated wire connection. The \texttt{TS\_Off} signal (also labeled as \texttt{TSAL\_Green} in the schematics) is transmitted to the TSAL system via a dedicated wire connection.
If this wire becomes disconnected, the pull-down resistor R16 ensures that the constant current driver (IS32LT3178~\cite{driver_datasheet}) is disabled, preventing unintended LED activation. \\ If this wire becomes disconnected, the pull-down resistor \texttt{R16} ensures that the constant current driver (IS32LT3178) is disabled, preventing unintended LED activation.\cite{driver_datasheet} \\
\noindent See: \hyperlink{./Documents/dashboard-FT25.pdf.2}{Dashboard} \\ \noindent See: \hyperlink{./Documents/dashboard-FT25.pdf.2}{Dashboard} \\
@ -130,12 +128,6 @@ All three status signals are transmitted via the CAN bus every 50~ms.
If the dashboard does not receive a valid CAN message from the AMS Master within 150~ms, it will enter a timeout condition and revert to the default LED states. If the dashboard does not receive a valid CAN message from the AMS Master within 150~ms, it will enter a timeout condition and revert to the default LED states.
Due to the CAN protocol's built-in checksum mechanism, this timeout condition will also occur in cases of persistent data corruption. Due to the CAN protocol's built-in checksum mechanism, this timeout condition will also occur in cases of persistent data corruption.
\includepdf[pages={9,8,3}, landscape=true, link]{./Documents/Master_FT25.pdf} % SDC Latching
\includepdf[pages={5,15}, landscape=true, link, pagetemplate=9]{./Documents/Master_FT25.pdf} % Relay Driver
\includepdf[pages={2,11,12,14}, landscape=true, link, pagetemplate=9]{./Documents/Master_FT25.pdf} % TSAL
\includepdf[landscape=true, link]{./Documents/DC.pdf}
\includepdf[page={1,2}, landscape=true, link]{./Documents/dashboard-FT25.pdf}
\renewcommand\refname{Reference} \renewcommand\refname{Reference}
\begin{thebibliography}{00} \begin{thebibliography}{00}
@ -148,4 +140,11 @@ Due to the CAN protocol's built-in checksum mechanism, this timeout condition wi
\end{thebibliography} \end{thebibliography}
\end{document}
\includepdf[pages={9,8,3}, landscape=true, link]{./Documents/Master_FT25.pdf} % SDC Latching
\includepdf[pages={5,15}, landscape=true, link, pagetemplate=9]{./Documents/Master_FT25.pdf} % Relay Driver
\includepdf[pages={2,11,12,14}, landscape=true, link, pagetemplate=9]{./Documents/Master_FT25.pdf} % TSAL
\includepdf[landscape=true, link]{./Documents/DC.pdf}
\includepdf[page={1,2}, landscape=true, link]{./Documents/dashboard-FT25.pdf}
\end{document}