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Johnny Hsu 2025-05-05 11:40:26 +02:00
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TSAL-schematic/TSAL-schematic.pdf
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TSAL-schematic/TSAL-schematic.tex
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@ -37,12 +37,13 @@
\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 U8 (74LVC1G74 \cite{latch_datasheet}) will be triggered.
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 R9 for discharging the capacitor can also be placed if the CLR pin does not discharge fast enough.
\subsection{IMD Latching} \subsection{IMD Latching}
\begin{itemize} \begin{itemize}
\item The \texttt{IMD\_OK} signal is pulled high approximately 1.5 seconds after startup for the IR155-3204 IMD.\cite{imd_datasheet} \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. \item Therefore the Power-on Reset (PoR) lasts approximately 2 seconds.
\end{itemize} \end{itemize}
@ -99,11 +100,13 @@ This cannot be reset, unless a LVS power cycle is carried out. The backup pull-d
\subsection{Relay states} \subsection{Relay states}
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 (which controls the TSAL green LEDs). When the aux cable are open, it is the same as the $\overline{\mathrm{Closed}}$ 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 GND" state can be ruled out by the comparator which compares the signal with a \SI{0.3}{\volt} reference. \\
\noindent See: \hyperlink{./Documents/Master_FT25.pdf.14}{AMS Master - Precharge State Detection} \\
See: \hyperlink{./Documents/Master_FT25.pdf.14}{AMS Master - Precharge State Detection} \\
Since we do not have aux connections with our precharge relay, the circuit works differently then the AIRs. Since we do not have aux connections with our precharge relay, the circuit works differently then the AIRs.
Here, the TS voltage on the inverter side is measured to check whether the precharge or AIR+ is closed or not. Here, the TS voltage on the inverter side is measured to check whether the precharge or AIR+ is closed or not.
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.
@ -112,12 +115,13 @@ The rule T11.9.2 does not apply here since no additional wires are used (all cir
\newpage \newpage
\subsection{TS\_Off / TSAL\_Green} \subsection{TS\_Off / TSAL\_Green}
\par
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 R16 ensures that the constant current driver (IS32LT3178~\cite{driver_datasheet}) is disabled, preventing unintended LED activation. \\
\par
See: \hyperlink{./Documents/dashboard-FT25.pdf.2}{Dashboard} \\ \noindent See: \hyperlink{./Documents/dashboard-FT25.pdf.2}{Dashboard} \\
The \texttt{TS\_Off}, \texttt{AMS\_Error}, and \texttt{IMD\_Error} LEDs on the dashboard are controlled by a microcontroller. The \texttt{TS\_Off}, \texttt{AMS\_Error}, and \texttt{IMD\_Error} LEDs on the dashboard are controlled by a microcontroller.
In its default state (i.e., after a reset or communication failure), the \texttt{TS\_Off} LED remains off, while the \texttt{AMS\_Error} and \texttt{IMD\_Error} In its default state (i.e., after a reset or communication failure), the \texttt{TS\_Off} LED remains off, while the \texttt{AMS\_Error} and \texttt{IMD\_Error}
LEDs are turned on due to the inclusion of an additional NOT gate. LEDs are turned on due to the inclusion of an additional NOT gate.