OBD Test Efficiencies Through Automation

In-vehicle automation efficiency improvements have successfully confirmed and enhanced model accuracy, saved significant calibrator time, and optimized vehicle utilization. While industry focuses on model-based calibration and Hardware-in-the-Loop (HIL) as replacements for in-vehicle testing, vehicle fleets are shrinking. Kaizen incremental efficiencies are often applied to manufacturing, yet there are significant opportunities for applying the continuous cycle of Kaizen activity to calibration and validation processes. OBD automation has progressed from all human testing to static break-out box circuit testing to CAN corruptions to LIN corruptions to SENT devices to dynamic performance/rationality diagnostics. Automating OBD validation enables rapid, repeatable vehicle operation without human inefficiencies. By integrating data collection tools, remote vehicle operation and OBD requirements, complete Design-of-Experiment (DOE) test sequences can be executed. 1. Intro 2. Automation test setup/sequence 3. Capabilities: a. Base electrical failures i. Open ii. STG iii. STP b. Signal modification i. CAN ii. LIN iii. Sensor signal 1. Analog 2. Duty-Cycle 3. Frequency 4. Resistance iv. SENT c. INCA logging for WPA & BPU data 4. Test compare: a. Human effort � calibrating vs data collecting b. Vehicle utilization i. Human � �Day shift� ii. Automation � continuous 24hr