polikhoja
Automotive
- May 2, 2023
- 3
Good time of the day!
I am part of student team which participates on Shell Eco Marathon where the team with least consumption wins. Till now we were able to make a reliable model that we simulate with event builder on tracks that resemble the real tracks of the competition.
The problem is I am not able to implement a function or a request or a variable, which would use a run-time function, I guess. It is a very important feature of Adams that was never exploited before thus we dont have any starting ground to rely on.
Below I will try to explain how we compute the consumption:
1. We use this table to get the fuel consumption rate ( in gramms per second) which is related to the engine rpm and throotle demand. Table is similar to the engine map where you get the velocity with respect to the engine speed and torque
. And 3000 rpm is the idle speed of the engine. And throttle on is throotle demand of 1 and vice versa. Our car is modelled to have only full throttle when you push the gas pedal.
2. then we integrate that with respect to simulation time, gaining the total consumption over the simulation time
3. In the end we use unit coversions to gain the end result in liters per 100 km.
I appreciate any advice and directions. Thank you in advance!
I am part of student team which participates on Shell Eco Marathon where the team with least consumption wins. Till now we were able to make a reliable model that we simulate with event builder on tracks that resemble the real tracks of the competition.
The problem is I am not able to implement a function or a request or a variable, which would use a run-time function, I guess. It is a very important feature of Adams that was never exploited before thus we dont have any starting ground to rely on.
Below I will try to explain how we compute the consumption:
1. We use this table to get the fuel consumption rate ( in gramms per second) which is related to the engine rpm and throotle demand. Table is similar to the engine map where you get the velocity with respect to the engine speed and torque
2. then we integrate that with respect to simulation time, gaining the total consumption over the simulation time
3. In the end we use unit coversions to gain the end result in liters per 100 km.
I appreciate any advice and directions. Thank you in advance!
