Exhaust Aftertreatment System DCU Control Unit Functional Tester
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Exhaust Gas Aftertreatment System DCU Control Unit
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Exhaust Aftertreatment System DCU Control Unit Functional Tester
Exhaust Aftertreatment System DCU Control Unit Functional Tester
1. Equipment Images
Adopting the 6001 standard cabinet design.
II. Equipment Function Description
1. Online Program Burning
2. Measurement of supply voltage and internal voltage module voltage
3. CAN Communication Testing
4. Simulation of the Air Flow Sensor and Detection of DCU Acquisition Values
5. Simulation of urea tank temperature and level sensors, along with detection of DCU acquisition values
6. Simulation of catalytic converter inlet and outlet temperature sensors, along with verification of DCU-logged values
7. Simulation of the PTO signal and detection of DCU acquisition values
8. Detection of DCU Control Fault Light Status
9. Detection of the DCU-controlled urea tank level indicator light status
10. DCU Monitoring of Hot Water Valve Status Control
11. DCU provides detection with drive state control for the backup system
Technical indicators
1. Voltage Acquisition (16-bit ADC used for voltage measurement)
A. Multi-channel: 32 channels
B. Voltage measurement range: DC 0~100V
AC 0~100V
C. Measurement accuracy: Better than ±(1% + 0.01 V)
2. High-speed Digital I/O
A. Multi-channel: 32 channels
B. Level output: High is 5V
Low: 0V
C. Level input: Greater than 3.5V is logic high
Less than 1.5V is logic low.
3. Load Connection Switch (Provides a load switch; external loads can be connected as needed)
A. Maximum switching voltage: 250V
B. Maximum switching current: 5A
C. Maximum switching power: 150W
D. Switch Channels: 16 channels per board (expandable as needed)
4. Programmable Voltage (12-bit DA output with common ground)
A. Number of channels: 8 channels
B. Voltage output range: 0–5V, with 1 mV steps
C. Voltage Output Accuracy: ±(1% + 0.01 V)
D. Current Drive Capability: 0–100 mA
5. Sampling resistor output
A. Number of channels: 5-channel dual-point output
B. Resistance accuracy ±2%
C. Voltage range: 0–24V
D. Power consumption: 0.25W
E. Eight fixed-resistance settings per channel
6. Programmable Frequency Source (8 Channels, Single-Source)
A. Number of channels: 8 channels
B. Voltage: TTL level
C. Driving capability: Less than 50 mA
D.9833 Programmable Frequency Source Range: 10 Hz – 2 MHz
Accuracy: ±1% + 1Hz
Resolution: 1 Hz
7. Current Acquisition
A. Current measurement range: 0–32 A
B. Measurement accuracy ±3%
C. Response time: 1 ms
III. Comparative Analysis of Project Import Efficiency vs. Manual Testing
4. Equipment Import Cost Recovery Cycle Calculation
