Questions tagged [electric-vehicle]

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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What happens to the motor when the car is in "D" drive mode with brakes held on? [closed]

Typically the electric cars do not have clutch or gearbox. This means that for short periods the car be stopped with brakes (hand brake or foot brake) while the car is in "D" (for drive) ...
Narayanan's user avatar
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EV charger connector identification

I am building a portable EV charger demo for conferences, and for transportability reasons, I need the charger cable to be removable. Have you ever seen that connector?
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EV charger individual cable insulation

Are the internal conductor strands inside the Level 1, level 2, level 3 EV chargers bare or do they have a coat of insulation? I know the conductor strands combined as a wire have a sheath of rubber ...
Ruhi's user avatar
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What’s this PCB that interfaces with the USB CarPlay connector of the Ioniq 5 / EV6?

As with several owners of the Hyundai Ioniq 5 and the Kia EV6, I’ve been having intermittent issues with the USB CarPlay functionality. It worked fine when the car was new, but after a few months the ...
Honeycomb's user avatar
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2 answers
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Shutdown circuit of an EV gokart

My student project team is planning to build an EV gokart. It's supposed to have a shutdown circuit/kill switches. I was planning to implement a DC contactor/high power relay to connect/disconnect the ...
naman sanghvi's user avatar
1 vote
1 answer
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Choosing Contactors for an EV Battery Pack

I’m designing a battery pack and am uncertain about which contactor to select. Many electric vehicles (EVs) use three contactors: one each in the positive terminal, negative terminal, and precharge ...
Son Pham's user avatar
2 votes
1 answer
49 views

Charging li-ion 72V with solar MPPT controller [closed]

I have an EV 72V li-ion battery with given charger (peaks at 11 A). My MPPT solar charger is designed among other types for li-ion up to 96V ie 12/24/36/48/60/72/84/96V settable at 72 V. 50 A max. ...
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Two motor controllers in parallel

Can I, when connecting two inverters (motor controllers) in parallel, control each current independetly? Also is it possible to charge a battery trough a inverter (motor controller) with both inverter ...
Gabriel Sampaio's user avatar
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Read voltage (isolated circuit) from 24S Li-ion battery pack and output 0-5 V signal

I am finishing up a EV-conversion and everything works well except the SoC display. The BMS I am using outputs 0-5 V to indicate the SoC but the output pin for this signal is broken from the previous ...
Luddbro's user avatar
2 votes
1 answer
19 views

What is the difference between Electric Vehicle Charging Infrastructure (EVCI) and Electric Vehicle Supply Equipment (EVSE)?

I'm just getting involved in the EV charging in a professional capacity, and I'm having trouble finding an authoritative answer on the difference between supply equipment and charging infrastructure. ...
Graham Lea's user avatar
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1 answer
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DC-DC buck converter's MOSFET or IGBT?

Motor Specifications: Rated power: 50 kW Rated voltage: 200V DC Rated current: 250A Battery Specifications: Nominal voltage: 400V DC Capacity: 50 kWh Design Requirements of the DC-DC Converter ...
Badr Al-Sabri's user avatar
1 vote
1 answer
236 views

Does the RCD go before or after the MCB?

I am going to connect a 4 pole RCD and MCB to the input of a power supply. Which one should I connect first, the RCD or the MCB? I have seen them connected both ways.
pepopi1's user avatar
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1 vote
2 answers
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How long would it take a 400 W solar panel to charge a 28 kWh EV battery?

I'm located in The Gambia which is almost on the equator. We get over 11 hours of sunlight on Dec. 21st. Being a tiny country, daily travel is minimal, at most, maybe 28 km. If I place a 400 watt ...
sarrfox's user avatar
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1 answer
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If the chassis is at high potential and a human touches it, will he get shocked? The proposed circuit is for the cancellation of CM current

This circuit is compensating the potential difference between the chassis and motor so the bearing current or leakage current cannot flow from motor to chassis to ground. If the chassis is at a high ...
Awaisha memon's user avatar
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45 views

Small Fuse for 600VDC with 6kA interrupt current

I'm looking for a 0.1A - 1A Fuse for a 600VDC system with an interrupt current rating of at least 6kA. I found some fuses like the TC-632414, which would fulfil the criteria, but they are quite big. ...
Felix Kunz's user avatar
1 vote
1 answer
246 views

How EV chargers know the battery's charge level? [duplicate]

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 ...
Ri Di's user avatar
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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 ...
cracker's user avatar
0 votes
2 answers
352 views

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 ...
Vibhore Jain's user avatar
0 votes
1 answer
285 views

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 ...
Rohitsam's user avatar
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1 answer
252 views

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 ...
Brad Richards's user avatar
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0 answers
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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)...
Verny's user avatar
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0 answers
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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?...
lmezis's user avatar
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2 answers
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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-...
Carmen Selva's user avatar
0 votes
1 answer
215 views

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 ...
Lightheaded's user avatar
3 votes
2 answers
366 views

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 ...
MoonCactus's user avatar
-8 votes
1 answer
208 views

how do i make 384 volts at 200 amps or 80kw from a lower voltage battery source with a transformer [closed]

this is to completely replace my 2012 Nissan leaf traction battery. with a transformer. methods I've considered. -dc to dc boost converter -power inverter -voltage multiplier -some type of unknown ...
jwr's user avatar
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0 votes
1 answer
71 views

What is the relation (equation) between mileage output and charging frequency of an electric vehicle? [closed]

What is the relation (equation) between output mileage (km/charge) and charging frequency (how many times an electric vehicle is charged in a day) of an electric vehicle?
user2961109's user avatar
0 votes
1 answer
56 views

15A 125V smart plug being used to slow charge electric car [closed]

So my car is using a charger that from what I'm told is both level 1 and level 2 capable. What I'm getting from the car is that its slowly drawing 8A continuously untill charged. The plug I have in ...
mikaloe's user avatar
0 votes
2 answers
3k views

Lithium 72V (2x 36V series) charging with double 36V charger for ebike project [closed]

Edit1: Voltage is wrong but here is a basic wiring diagram for a parallel to series changeover switch I found on internet closest to what I want. I want to 2 36v battery packs in series. I know that ...
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