Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [ev]

Electric vehicles (EV) use electric motors rather than combustion engines for propulsion. The source of energy may be internal (such as from batteries or solar panels) or external (such as an electrified rail).

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How to dynamically simulate an EV plug disconnection in order to automate charging power setup

I bought a well-made Chinese charger for our Zoe ZE50 R110 electric vehicle. It can be set to various charging levels (8,10,12,16A at 220V), but as a safety (I guess), the procedure requires me to disconnect the cable from the car before I can…
MoonCactus
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2002 Toyota RAV4 EV Battery Swap

I am trying to change out the NiMH battery in my 2002 RAV4 EV to lithium ion. The current configuration is 24 NiMH batteries that are not made anymore. With the BMS wires between every 12V cell, plus one at the beginning and an extra one for the…
Z W
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How EV chargers know the battery's charge level?

I know charging station generates 1kHz PWM to set charging current - even Wikipedia has nice explanation how to use it. But that is only communication protocol I can find. I did notice some charging stations can provide vehicle's information - like…
Ri Di
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Power Meter current (for EV charging)

I would like to charge an EV at 10, or even 15A through a GPO that has a power meter attached. The meter states 5(45)A, and Rated Current (Ib ) 5 A Maximum Rated Current (Imax) 45 A So, will a lengthy continuous draw of 10A be too much for the…
cracker
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CAN protocol for communication between EV and Charging equipment

I am trying to understand (and hopefully build) DC fast chargers (GB/T) for electric vehicles, specifically the communication between the Electric Vehicle Supply Equipment (EVSE) and the electric vehicle (EV). As per my understanding there is no…
Vibhore Jain
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How does EVSE gets the SoC of a vehicle in Level 1 and Level 2 chargers, Type2 Gun(IEC62196-2)?

Type2 gun does not allow full-fledged communication between the EV and EVSE, Electric vehicle can only tell the EVSE what state it is in through the control pilot. is it possible for EVSE to share SoC over Type2 gun?
Rohitsam
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IEC 61851 - reason for minimum current?

I would like to understand the reason for the minimum charging current of 6 amps. This poses a serious limitation for people with charging stations and smaller solar installations. While they may have an excess of 4 kW in the summer, they may never…
Brad Richards
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Simple way to achieve constant output current from a boost converter for battery charging in an EV penetration simulation study using EMTP simulation

I am simulating Level 1 and Level 2 EV chargers to test the impact of such chargers on a grid in a developing country. I am simulating in EMTP-RV (software for simulation and analysis of power systems), and as the models of the battery (lithium-ion)…
Verny
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Precharge Control for EV

I have a conventional precharging system consisting of a contactor and a resistor. What kind of way should I follow to control this with analog circuit elements in electric vehicles? Do you know a way? Or is there a sample project that I can review…
lmezis
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BQ2054: Studying the impact of high-current charging EV Li-po batteries at high C-rates and most common charging methods used

I am trying to replicate the charging method of fast-charging stations for electric vehicles using one or two Li-po cells. The purpose of the experiment is to measure the impact of high C-rates on Li-po cells when charging. Part of designing the…
Carmen Selva
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How does an electric vehicle determine how much current to draw from a 230 V mains socket?

I was talking with an electrician doing some basic wiring at my house and mentioned that I'm getting an EV. He told that his relatives came to visit and wanted to charge an EV at his house. He had dual 230 V sockets that were otherwise identical but…
Lightheaded
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