Concrete buildup detection

A vehicle comprising:

• an engine;
• a drum configured to mix drum contents received therein;
• a drum drive system coupled to the drum and the engine, the drum drive system including:
• a pump mechanically coupled to the engine and configured to pump a fluid through a hydraulic system;
• and
• a motor fluidly coupled to the pump by the hydraulic system and positioned to rotate the drum to agitate the drum contents;
• a pressure sensor positioned to acquire pressure data regarding a pressure of the fluid;
• a temperature sensor positioned to acquire temperature data regarding a temperature of the fluid;
• a display device;
• and
• a control system coupled to the drum drive system, the pressure sensor, the temperature sensor, and the display device, the control system configured to (i) perform a calibration test while the drum is empty and clean and (ii) perform a buildup detection test following one or more uses of the drum and while the drum is empty, the control system including a processor and a memory, the memory storing instructions thereon that, when executed by the processor, causes the processor to:
• operate the drum drive system to rotate the drum at a first speed to initiate the calibration test;
• determine the temperature of the fluid based on the temperature data as the drum rotates at the first speed;
• provide a first notification on the display device and continue to operate the drum drive system to rotate the drum at the first speed in response to the temperature being less than a temperature threshold;
• provide a first step input to the drum drive system to rotate the drum at a second speed greater than the first speed in response to the temperature being greater than or equal to the temperature threshold;
• determine a baseline operating pressure of the fluid based on the pressure data as the drum rotates at the second speed in response to the first step input;
• operate the drum drive system to rotate the drum at the first speed to initiate the buildup detection test;
• determine the temperature of the fluid based on the temperature data as the drum rotates at the first speed;
• provide a second notification on the display device and continue to operate the drum drive system to rotate the drum at the first speed in response to the temperature being less than the temperature threshold;
• provide a second step input to the drum drive system to rotate the drum to rotate the drum at the second speed in response to the temperature being greater than or equal to the temperature threshold;
• determine a current operating pressure of the fluid based on the pressure data as the drum rotates at the second speed in response to the second step input;
• and
• determine that there is a buildup of the drum contents within the drum in response to a difference between the baseline operating pressure and the current operating pressure exceeding a threshold differential.