Toyota Technical Development Corporation TOYOTA TSUSHO SYSTEMS CORPORATION
Contact us

Electricity cost and Thermal system simulation model for EV

Ver. 1.0.0 for R2021a
This is an electric vehicle model for simulating electricity cost and thermal system.

The powertrain of it consists of a motor (power rating: 110[kW]), a reducer mechanism, a vehicle, a low-voltage battery, and a high-voltage battery. And the thermal system of it consists of a radiator, an HVAC system, a seat heater, and a PTC heater.
Input / output signals are connected as follows.
Control signals and environmental signals are connected to the input ports.
Sensor signals and monitor signals are connected to the output ports.
There is no external connection to the physical conserving port.


List of signals :

・Control signals
   Control brake opening , Control motor current,
Control voltage [ex. Water pump], Control electric power [ex. Seat heater], Control charge current
・Environmental signals
   Road slope, Wind speed, Outside temperature, etc.
・Sensor signals
   Vehicle speed, Rotation speed, Torque, Current, Voltage, Electric Power, Temperature
* This physical model can be connected to the control model, which is a case study model in “Plant Modeling I/F Guidelines for Vehicle Development” published by the of Japan Automotive Model-Based Engineering center.


How to connect:

Click to enlarge image.


Internal configuration diagram:

The internal structure of this model is shown in the figure below.
Click to enlarge image.


Operating environment:


Block diagram :

Click to enlarge image


Solver settings:
・ Global solver
 - Solver: Arbitrary
 - Sample time: Dependents on the setting value of the local solver

・ Local solver
 - Solver: Backward Euler method
 - Sample time: 2.5 msec
 - Number of iterations: 3 times


Model constraints:
 - This model does not simulate or guarantee the behavior and behavior accuracy of the actual machine.
 - If the file structure in the library folder is changed, this model does not work.
 - It may not work with other operating environments or solver settings than those listed above.
 - It may not work with parameter sets other than those provided.
 - The initial state is a stopped state.


How to execute:
 1. Move the MATLAB current directory to the folder where the model files are located.
 2. Execute the parameter file.
 3. Open the model file.
 4. Run the model.
Ver. 1.0.0 for R2021a
Ver. 1.0.0 for R2021a