Simulink® Modeling for Vehicle Simulator Design - Delphi

Figure 16. Handling of Multi-frame
Figure 17. Decoding DTCs
The faults are simulated from the simulator by various
methods such as stopping messages, sending messages with
error signals set, etc. The ECU sets the diagnostic trouble
codes (DTC) for each fault. These fault conditions can be
read from the diagnostic services. Since the ECUs support
30-50 different DTCs, this information has to be transmitted
in multiple CAN frames. Since each frame of the DTC
response is transmitted from the ECU, the Simulink ® model
samples these messages and then stores it in buffers.
7. SIMULATION OF POWER
WAVEFORM TEST TOOL
In the vehicle environment, the ECU is subjected to power
variations and it is very important to know how the ECU's
functionality will be affected by such conditions. The
Simulink ® model helps in generating different types of power
waveforms.
Figure 18. Power Waveform Test Setup
Here the requirement is to generate different types of
waveforms. Using the block as follows, different kinds of
waveforms can be generated that will drive the programmable
power supply.
8. REPLAY CAN LOGS ON TARGET
HARDWARE FOR FUNCTIONAL
VERIFICATION
As the vehicle control algorithms for various features of
adaptive cruise control grows more complex, simulation of
all real-time scenarios to validate ECU functionality is not
always possible.