Hi, my name is Albert and I currently working on a project in one of my undergrad classes.
For my project, we are looking into finding how long a car needs to be charged in order to reach a certain mile distance. My specific portion is to find how fast the car charges over time under lvl 1 (120V 15A) and lvl 2 (240V 60A) charging. I have searched the web and have only been able to find how much time is needed to recharge the entire battery using these two levels.
However I need specific data for the intermediate charging area (between max and min). We assumed that the charge rate is non linear so that the time it takes to charge a car from 40% to 60% state of charge is not the same as charging the battery from 60% to 80%. (Assuming other variables, temperature/heat are constant)
I was using the specific car the Nissan Leaf as my specific example which has a Lithium-Ion 24kWh battery and a 80% depth of discharge.
The ultimate goal is to write a program in MatLab which recieves two inputs: current state of charge and target state of charge) and then outputs the required time to reach the target state of charge under lvl 1 and lvl 2 charge rates for an electric vehicle.
I am currently very lost and have been unable to find relevant data and was hoping if any of you could help or point me in the right direction.
I have already looked at discharge/charge cycles for various batteries and am getting confused with all the varying terminolgy (I'm a MechE not a EE, sadly ). I was considering looking at charge/discharge rates vs state of charge for smaller sized batteries and then scaling these to electric vehicle rates, and was wondering if this was the right direction?
Any help would be greatly appreciated, but if anyone could find a graph or tabulated data on this that would be amazing.
For my project, we are looking into finding how long a car needs to be charged in order to reach a certain mile distance. My specific portion is to find how fast the car charges over time under lvl 1 (120V 15A) and lvl 2 (240V 60A) charging. I have searched the web and have only been able to find how much time is needed to recharge the entire battery using these two levels.
However I need specific data for the intermediate charging area (between max and min). We assumed that the charge rate is non linear so that the time it takes to charge a car from 40% to 60% state of charge is not the same as charging the battery from 60% to 80%. (Assuming other variables, temperature/heat are constant)
I was using the specific car the Nissan Leaf as my specific example which has a Lithium-Ion 24kWh battery and a 80% depth of discharge.
The ultimate goal is to write a program in MatLab which recieves two inputs: current state of charge and target state of charge) and then outputs the required time to reach the target state of charge under lvl 1 and lvl 2 charge rates for an electric vehicle.
I am currently very lost and have been unable to find relevant data and was hoping if any of you could help or point me in the right direction.
I have already looked at discharge/charge cycles for various batteries and am getting confused with all the varying terminolgy (I'm a MechE not a EE, sadly ). I was considering looking at charge/discharge rates vs state of charge for smaller sized batteries and then scaling these to electric vehicle rates, and was wondering if this was the right direction?
Any help would be greatly appreciated, but if anyone could find a graph or tabulated data on this that would be amazing.