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\usepackage{float}
\usepackage{multicol}
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%   block/.style = {rectangle, draw, text centered, minimum height=2em},
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% }

\begin{document}
\lhead{\large Car 313, 06.03.2025, Rev. 1}
\chead{\large BSPD Schematic}

\begin{figure}[H]
	\centering
	\includegraphics[width=\textwidth]{./bilder/output.pdf}
	\caption{Schematic of BSPD}
\end{figure}

The BSPD PCB is located in the front "Sensor-Node" (mainly there to transfer the analog data to CAN), in which a separate compartment is created to ensure the BSPD can be separated sealed without affecting other parts in the same housing.

\begin{multicols}{2}
	\textbf{Test Procedure}
	\begin{enumerate}
		\item apply external test current to the simulation coil
		\item brake hard (with brake pressure $\geq 30 \unit{\bar}$)
	\end{enumerate}
	
	\textbf{Test Current Calculation}
	\begin{align*}
		I_{test} & = 5 \unit{kW} / V_{max} = 5 \unit{kW} / 403.2 \unit{V} \\
		         & = 12.401 \unit{A}
	\end{align*}
	\quad \quad 12 windings $\longrightarrow$ test current $\approx 1.034 \unit{A}$
\end{multicols}

\begin{figure}[H]
	\centering
	\begin{tikzpicture}[node distance=1cm]
		% % Nodes
		% \node (current) [block] {Current source};
		% \node (sensor) [sensor, right of=current, xshift=3cm] {Lem HO-100s sensor};
		% \node (bpressure) [block, below of=sensor, yshift=-2cm] {Brake Pressure Sensor};
		% \node (bspd) [block, right of=sensor, xshift=4cm, yshift=-1cm] {BSPD PCB};
		% \node (lvms) [circle, draw, above of=bspd, yshift=2cm] {+12V LVMS};
		%
		% % Connections
		% \draw [arrow] (current.east) -- (sensor.west);
		% \draw [arrow] (sensor.east) -- ++(2, 0) node[midway, above] {sen\_1} -- (bspd.west);
		% \draw [arrow] (bpressure.east) -- ++(5, 0) node[midway, above] {sen\_2} -- (bspd.west);
		% \draw [arrow] (lvms.south) -- (bspd.north);
		% \draw [arrow] (bspd.east) -- ++(1, 0) node[midway, above] {SDC\_OUT};
		% \draw [arrow] (bspd.west) ++(0, -0.5) -- ++(-1, 0) node[midway, above] {SDC\_IN};
		%
		% % Ground symbol
		% \node (ground) [below of=bspd, yshift=-1cm] {};
		% \draw (bspd.south) -- (ground) node[midway, right] {};
		\draw[black, rounded corners, thick] (0,4) rectangle (3,6) node[midway]{Current source};
		\draw[blue, rounded corners=24pt, line width=16pt] (5,4) rectangle (8,6) node[midway]{LEM HO-50S};
		\draw[black, rounded corners, thick] (5,0) rectangle (8,2) node[midway, text width=2.5cm]{Brake Pressure Sensor};
		\draw[black, rounded corners, thick] (12,2) rectangle (15,4) node[midway]{BSPD PCB};
		\draw[->, rounded corners, ultra thick] (8.3,5) -- (10,5) -- (10,3.5) -- (12,3.5);
		\draw[->, rounded corners, ultra thick] (8,1) -- (10,1) -- (10,2.5) -- (12,2.5);
		\draw[rounded corners, very thick] (3,5.6) -- (5.6,5.6) -- (4.6,5.2) -- (5.4,5.2) -- (4.6,4.8) -- (5.4,4.8) -- (4.6,4.4) -- (3,4.4);
		\draw[->, ultra thick] (13.5,5) -- (13.5,4);
		\draw[->, ultra thick] (13.5,2) -- (13.5,1);
		\draw(13.5,5.5) node[align=left]{SDC in};
		\draw(13.5,0.5) node[align=left]{SDC out};
	\end{tikzpicture}
	\caption{current simulation schematic}
\end{figure}

\end{document}