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Questions tagged [electric-vehicle]

An electric vehicle (EV) uses one or more electric motors for propulsion.

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What is regenerative braking and why don't we use it?

I know that many electric cars use regenerative braking to enable the car to become more efficient by converting what would otherwise be lost heat energy in to a more useful, reusable form of energy. ...
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5answers
62k views

Can I jumpstart a non-hybrid car from a hybrid or full electric car?

This morning I had starter battery troubles with my 2001 VW Eurovan. As it happened, my father-in-law arrived just at the right time in his fancy new Toyota Camry hybrid. So we opened the hoods, dug ...
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6answers
5k views

Turbo equivalent on electric motors

Is there anything functionally equivalent to a turbo for electric motors? Obviously, I am not asking for something that reuses exhaust gases to force in more air, because there are no exhaust gases ...
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5answers
5k views

Do I need to take an electric vehicle to a specialist repair shop?

I am pondering getting an electric vehicle (a VW e-Golf, which is strongly rooted in the Golf "platform", just swapping the motor), and one issue amongst many is how to proceed with the maintenance. I ...
10
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5answers
15k views

Is it possible to have a manual transmission electric car?

Reading about the new supercar from VW, I distinctly noticed when the author specifically mentioned shifting to "drive". I know the car in article is an automatic, but it got me thinking. Is it ...
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3answers
1k views

Can a conventional car be used to charge an electric car?

A friend who drives a Leaf recently came very close to running out of charge, which prompted another friend to ask if it was possible to "jumpstart" a Leaf from another car. Obviously you couldn't do ...
9
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3answers
134 views

Are garage outlets for electric cars evolving to 120V/240V/480V or to 30A/90A?

The numbers in this question are for jurisdictions where the voltage delivered by electricity companies (confusingly called "hydro companies" in some places) is at 110V or 120V, and where every power ...
8
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2answers
995 views

Why do electric motors produce peak torque instantly vs gasoline engines

On a separate forum, someone had asked why electric cars do not have transmissions. The simple answer was that electric cars produce peak torque at any RPM but the gasoline engine needs to rev up to ...
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2answers
5k views

Will never charging the batteries of a hybrid electric plug-in vehicle damage it?

I am likely to be forced to use a Volvo V60 in its hybrid diesel-electric plug-in version for my daily commutes. This is a hybrid system comprising a 2.4l diesel engine with an added plug-in electric ...
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2answers
4k views

Is it possible to rebuild the batteries of the Nissan Leaf?

I've seen many used Nissan Leafs being offered for a very low cost (as little as $6000 as of 2016), but I'm concerned about the lifetime left in the batteries of those cars. Nissan says that they will ...
7
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1answer
162 views

Have any systems been created for electric cars to intentionally reduce torque in icy conditions?

So, I daydream quite a bit about owning a Tesla Roadster, then it hit me. What happens when it's icy and I need to go get groceries? Well, in my Lotus Elise, I could easily just pop the thing in ...
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10answers
2k views

Batteries for electric vehicles commonly available much like gasoline [closed]

I mostly want to focus on the practical / mechanical perspective of this question. I have thought already many times on buying a small electric motorcycle for daily commute etc but i wouldn't min to ...
6
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2answers
2k views

Why do high-end electric cars have mechanical brakes?

(This isn't a "maintenance & repair" question, I hope you'll forgive me.) When powerful electric cars (such as, but not only, the Tesla) can accelerate from zero to ludicrous in half a jiffy, and ...
6
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1answer
78 views

Can I use ultracapacitors to generate current pulses to run a motor?

I'm using a 48V 1500W BLDC motor in a solar car. One of the rounds I'm taking part in requires the removal of batteries and running the motor solely on solar power. But due to space restrictions I ...
6
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3answers
159 views

Can electric cars do *dynamic* (heat waste) braking?

Imagine you drove your (pure) electric car to a very high mountain resort. It took 3 full battery charges to get up here, but by golly, you did it. And you plugged in, so battery is topped up now. ...
6
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1answer
102 views

Electric car charging - what types of chargers are used, and how many of each?

I am an Engineer, at a company that provides transportation related products and solutions. Recently I was asked to design an EV car charging station. I quickly realized that car charging lacks ...
5
votes
3answers
130 views

Is anyone working on a battery-powered motorcycle (a real one, not a toy)?

Tesla motors made the Roadster and Model S, a small sports car and a sedan respectively, both of which are fully battery powered. They're now working on the Model X, a fully battery-powered SUV. The ...
5
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1answer
17k views

How do electric car transmission systems work?

How do electric car transmission systems work? Does it have an auto or manual gear concept like gasoline vehicles? As an electric motor can run in any speed (slow), is it necessary to have a clutch?
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3answers
308 views

How to convert a gasoline powered vehicle to all electric

I would like to convert a Ford Escort to an Electric Vehicle (EV). I would like to have a 40-60 mile cruising range and would not need to go faster than 55 MPH. Can you recommend a conversion kit (or ...
5
votes
2answers
107 views

In an electric vehicle, do you need to come to a complete stop before switching to low gear?

I recently got a 2016 Ford Focus Electric. Before that, I was driving a 1996 Toyota Camry Wagon. I've been told many times that one needs to come to a complete stop before changing gears or else ...
4
votes
6answers
577 views

Equivalent of “gas can” for electric vehicle?

I just saw a TV show where the characters ran out of charge on a Tesla. That got me thinking… with common fuel one can go out and return with a small can, and roadside assistence dispatches can bring ...
4
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5answers
2k views

Can you pushstart a hybrid / fully electric car?

I'm fairly new to mechanics and was wondering: Let's say you have a hybrid car and the battery is dead. Can you pushstart this vehicle? The same question goes for a fully electric car, however I'm ...
4
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1answer
261 views

Does a Nissan Leaf necessarily have a 6.6kW capacity on-board charger if it has Quick Charge port?

Looking at a 2015 Nissan Leaf I see it has a Quick Charge port (listed as part of the Charge Package on the spec sheet). Does this mean this car also has the 6.6kW on board charger? I'm not sure if ...
4
votes
1answer
138 views

Is it harmful to hill-hold electric car with accelerator pedal?

I have a partially electric car, a 2016 Toyota RAV4 hybrid. I have noted there are two ways I can hold the car on a hill at standstill. I can either press the brake pedal (after releasing it, there's ...
4
votes
1answer
130 views

Nissan Leaf 2013 - 2015 Model

I like the Nissan Leaf. I want to know if it can travel a maximum 180 Kms. Is there a portable device that could charge the vehicle? Why do car experts say it is not good to charge it daily from a ...
4
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0answers
48 views

Use electric vehicle as a mobile power source

I have a mobile car-wash company and I want my guys to have a fully 220V (2000W-3000W) power outlet available to plug their vacuum cleaners into. I thought I could buy an electric vehicle to "...
3
votes
2answers
105 views

Is it plausible that 2000 kg of batteries are equivalent to 60 liters of gasoline?

Based on the energy per kg stored in a battery and gasoline; the efficiency of the electric and thermal engine and other factors, after some calculations I reached the conclusion that 60 liters of ...
3
votes
1answer
98 views

Will Tesla steer if autopilot is engaged but your hand are on the wheel? If so how much force is required to overcome autosteer?

I don't own a Tesla but I have read a lot about them. I know that there is an autosteer feature that allows the car to steer for you, but I also know that you need to constantly put your hands on the ...
3
votes
2answers
770 views

Can Zero motorcycles' batteries be charged independently by removing them first from the bike?

It seems the Tesla-equivalent in the motorcycle world is Zero (by looking at other questions), so I'll focus on this brand for this question (but feel free to correct me here). Can I charge a Zero ...
3
votes
1answer
848 views

Any means to add more batteries to an electric car?

A lot of the electric cars available today (except Teslas) have too small ranges. Inspecting them I see a lot of trunk that I might want to relinquish in exchange for extra range. However I don't see ...
3
votes
2answers
108 views

Can I power standard household devices from an electric car?

While I was visiting a party at a remote location with no connection to the power grid there was a generator running to power a couple of lights after sun-down. The generator is noisy and stinks and ...
3
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1answer
871 views

Explaining why electrical and hybrid cars always have automatic transmission

I am trying to understand if or why electrical and hybrid cars always have automatic transmissions. I know that a conventional petrol/diesel engine only have a small effective torque range, so you ...
3
votes
1answer
379 views

Speed limiter on Chevrolet Bolt

I recently got a Chevy Bolt and I found out that it evidently is speed limited to 91 mph. There's just one problem: I see no mention of the limit except in two places: in the car itself (it stops ...
3
votes
1answer
145 views

Cheater Plug for Level 1 EVSE to Level 2 EVSE

I have an EV that, like most, came with a Level 1 EVSE that can charge my car with 12A @ 120V. Now, I'd really like to be able to charge at work without needing to buy another EVSE, but at work, we ...
3
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2answers
2k views

How to disable tracking/beacon on kia soul ev?

We are about to trade in our 99 Corolla for a Kia Soul EV. One of the things I really dislike about it is that something (the GPS beacon?) will send location data and possibly other info about our ...
3
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0answers
428 views

On Board Diagnostics-II for Electric Vehicles

I'm learning about OBDII, and I'm wondering whether it is valid on EV's too. According to Wikipedia's PIDs article, the Service 01 PID 51 (or Fuel Type) has a value 8 that means that the fuel type ...
3
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0answers
259 views

Damage during jumpstart

I used my vehicle jump start another vehicle,the other vehicle started then died out, not cables remained on both vehicles for about 20 minutes before realizing the other vehicle died. Now my vehicle ...
2
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1answer
310 views

“Keep in low gear” driving a gearless electric vehicle [closed]

Note: Don't know if the question is an adequate fit for this site. If I see a traffic sign telling me to "Keep in low gear" like the TRAVE COM O MOTOR | Keep in low gear I saw on a Portuguese highway,...
2
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2answers
97 views

Is a gas car as sensitive to terrain as an electric?

Since I started driving a plug-in hybrid with a 50 mile electric range I've become sensitive to things that affect my 50 miles. For instance, when it's below about 40 degrees out I lose up to 25% of ...
2
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1answer
3k views

OBD-II Mode and PIDs specifically used for Electric vehicles?

I am working on developing a vehicle CAN communications protocol being implemented in an electric vehicle. I was wondering if anyone knew if there is a standard MODE and PID for OBD-II messages ...
2
votes
1answer
64 views

How long is a fuel cell expected to last?

How long is the fuel cell used in cars (like the Hyundai Tucson Fuel Cell or the Toyota Mirai) expected to last in terms of mileage or time? What kind of loss of performance is expected, like lower ...
2
votes
1answer
108 views

Zero Motorcycle - Remove Battery for winter?

I consider buying myself an electric Motorcycle. I really like the model Zero S and also the DS version. My Question now is, since I read that cold temperature isnt that good for the Battery over a ...
2
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0answers
180 views

Electric Ford Focus - all lights flashing when trying to start it

I have an Electric Ford Focus and this morning I tried to start it and all of the lights inside and outside just started flashing and going crazy. The app I have on my phone says that the charge ...
1
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3answers
67 views

Why don't plug-in vehicles have multiple sockets?

I've noticed the majority of electric / PHEVs have charging points at the front or left side of the vehicle. Given the layout of my driveway, this is really inconvenient for me. I'd ideally like the ...
1
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1answer
119 views

What happens when one hugely exceeds towing capacity of an electric vehicle?

I've came across stunts with Tesla X towing huge weight: over 100 tons of muck and even a Boeing Dreamliner jet. I haven't found any clue as to one or the other video being rigged, so I assume the ...
1
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1answer
42 views

What happens when an electric vehicle's battery die?

Common lithium ion batteries seem to have a life span of couple years. Does the same apply to EVs? If so, wouldn't it be costly to replace them (as they tend to be the most expensive part of the ...
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1answer
22 views

Portable EV chargers with “normal” US/Can 230V plugs?

I've put in my down payment for my first EV, and now have two years to buy the add-ons while it arrives (yes, two years). My garage already has a 230V/100A pony panel, so I'm going to have a NEMA 14-...
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1answer
40 views

Increasing dead stroke of a hydraulic hand brake

This is a weird thing to want to do, but I want to know if there is a way to increase the dead stroke of a hydraulic handbrake for an electric moped. The dead stroke is the initial part of the lever ...
1
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1answer
73 views

Push button when LED comes on

I have a button in my Electric car, with a small LED in it. By default when I turn on the car, the LED in the button lights up. Pushing the button turns the LED and the Fake engine noise OFF. The ...
1
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1answer
52 views

How can I determine if a 2015 Nissan Leaf can be monitored/controlled via an app?

I've seen in reviews that Nissan Leaf's have a phone app that can monitor and control its charging and climate functions. For example, you can view on your phone how much power the car's battery has, ...