Figure 7. Wheel speed sensor 3.2.3 ECU Is any embedded system that controls one or more of the electrical system or subsystems in a motor vehicle. The ECU or Electronic Control Unit is the brain of the ABS: it receives info from all the sensors, analyzes the data, compares the results with the specific values and when needed, uses special algorithms to regulate the braking force. This miniature computer is specialized in such operations and higher-spec ECUs can be constantly updated and can “learn” a lot of scenarios or maps to be used in certain situations.
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