Benefits of an Empirical Digital Twin
- Trustworthy simulation results:
- Models are verified against a real system.
- Ideal for complex, non-linear systems:
- Model response accurately describes nonlinear behavior. Suits IC engine, hybrid systems, thermal systems, and fuel cells.
- Quick to make:
- Training data cycles scale with variables not time
- Highly precise, based on real data:
- Faster than real time:
- No complex calculations mean scenarios can run in seconds.
- Identify areas of concern quickly:
- Simulate difficult to test regions to check conformity and highlight issues.
- Improve global vehicle models when necessary:
- Improve vehicle plant models
- Share models across departments:
- Multiple departments can benefit from increased model accuracy.
Empirical Digital Twin Creation Process
A Digital Twin can be created from any complex vehicle system: ICE, e-motor, thermal, vehicle.
1. Experiment design
Create dynamic test points
![](//static.horiba.com/fileadmin/Horiba/_processed_/5/7/csm_EDT_Experiment_design_fe0268af7c.png)
2. Generate training data
Record test data from lab to generate training data.
![](//static.horiba.com/fileadmin/Horiba/_processed_/1/0/csm_EDT_Generate_training_data_dbe0b150bd.png)
3. Model creation
Use ‘training’ data to build empirical model of attributes.
![](//static.horiba.com/fileadmin/Horiba/_processed_/1/8/csm_EDT_Model_Creation_781f53bd36.png)
4. Validate model
Validate model against real unit to confirm accuracy (R2)
![](//static.horiba.com/fileadmin/Horiba/_processed_/e/5/csm_EDT_Validate_model_ac6b567680.png)
5. Run simulation(s)
Simulate scenarios* with Empirical Digital Twin
30x faster than real-time!
![](//static.horiba.com/fileadmin/Horiba/_processed_/9/4/csm_EDT_Run_simulations_18b6433825.png)
6. Predict responses
Predict Performance, Electric Range or Emissions
![](//static.horiba.com/fileadmin/Horiba/_processed_/c/3/csm_EDT_Predict_responses_3ca5b5938c.png)
7. Identify and mitigate Hotspots
Identify “hotspots” – problem areas that need to be worked on
![](//static.horiba.com/fileadmin/Horiba/_processed_/c/b/csm_EDT_Identify_and_mitigate_Hotspots_5ac0966f02.png)