Changes for page Sensor Module
Last modified by Heimir Thordarson on 2026/07/05 12:56
From version 64.4
edited by Heimir Thordarson
on 2026/03/23 18:45
on 2026/03/23 18:45
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To version 65.2
edited by Heimir Thordarson
on 2026/03/24 14:24
on 2026/03/24 14:24
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... ... @@ -250,10 +250,31 @@ 250 250 251 251 The sensors output latency can be expected to be a lot shorter than the oil temperature sensor as the sensor is just a variable sensor based on placement. The limiting factor for the system which uses this information is the CAN-BUS messages from the inverters which send the information each 6.25 milliseconds. This means that the cut-off frequency cannot be any lower than 160 Hz, which will make the same type of low pass filter from the oil temperature sensor acceptable with a cut-off frequency of 1591 Hz. 252 252 253 -== AirTemperature Sensor ==253 +== Cooling System Sensor == 254 254 255 -The maingoal of the air temperaturesensor istohave an onboardknowledge of theambient temperaturefordataloggingandcoolingsystemcontrol system.The255 +There will be four cooling system sensor on the AR26 vehicle, and all of the sensors include two measurements each. These two signals are water temperature and pressure. With this the temperature delta over the entire cooling system can be measured, but also the overall water flow. If the equivalent orifice of the motors, inverters and other components are known, the flow can be calculated using the orifice equation. 256 256 257 + 258 +(% style="font-size: 1.5em;" %) 259 +((( 260 +{{mathjax}} 261 +$$ 262 +Q = C_D \cdot A_D \sqrt{\frac{2 \cdot \Delta P}{\rho}} 263 +$$ 264 +{{/mathjax}} 265 +))) 266 + 267 + 268 +where: 269 + 270 +* {{mathjax}}\(Q\){{/mathjax}}= Waterflow through the equivalent orifice 271 +* {{mathjax}}\(C_D \cdot A_D\){{/mathjax}}= practical 272 +* {{mathjax}}\(R_T\){{/mathjax}}= 273 + 274 + 275 + 276 + 277 + 257 257 = Bill of Materials = 258 258 259 259 == Circuit Board ==