Hey! I am working in a university team named ITU Electric Vehicles. We are making an Electric Car for Shell Eco Marathon.
Our vehicle works with a differential system. The engine powers this differential system, but it is not connected to a gear system. When this is the case, we select the no gearbox option in the gearbox section, but this time the program gives an error while running. I have to shift it to automatic every time. After saying no gearbox, I changed the engine torque. I don’t know why it didn’t give an error when I changed the ratio. In the model we use, there is a ratio of 1:11 between the engine and the system. When I enter the ratio as 11 here, the vehicle does not exceed 10 km/h. If I enter 1.1, it goes up to 45, but we are not sure if this rate or speed is correct. I didn’t try entering 0.11. I don’t even know if this method is correct. How can I determine this ratio if the vehicle has no gear and power is transferred through the differential system?
