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

Electric cars do need special maintenance, but they need less maintenance. I don't know about the E-Golf specifically but other electric cars need scheduled maintenance at around 1 year or 18,000 ...
GdD's user avatar
  • 17k
13 votes

Factors Limiting EV Battery Acceptance Rate on DC Fast Chargers

Generically speaking, higher charge rates will heat a pack more quickly than the lower rates. Tesla models are designed and constructed with active cooling as well as appropriate monitoring and charge ...
fred_dot_u's user avatar
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8 votes
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Will never charging the batteries of a hybrid electric plug-in vehicle damage it?

No, it won't get damaged. But you also shouldn't let the battery totally empty for long periods. Li-ion batteries are best stored with some charge (normally about 40% is recommended charge level for ...
Evren Yurtesen's user avatar
8 votes

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

Yes, there are a few Zero Motorcycles have quite a few models that are available for purchase right now. They are up to 67HP and a 197 mile range. Harley Davidson has a model that should be ...
DucatiKiller's user avatar
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8 votes

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

Lots of good answers, but will clarify something for what it is worth: All hybrid cars do have a 12V and a high voltage system. In my Prius (2009, 2003-2009 model), the 12v battery is in the boot. ...
Matt's user avatar
  • 81
8 votes

Factors Limiting EV Battery Acceptance Rate on DC Fast Chargers

One of the issues you face is that the battery capacity is itself one of the limiting factors for the power a battery can take. This is typically referred to as C-rating. That means you can charge a ...
Arsenal's user avatar
  • 181
7 votes
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Have any systems been created for electric cars to intentionally reduce torque in icy conditions?

The anti-lock system already monitors the individual speed of all wheels and reduces braking power of individual wheels when it detects it locking. From there, it is just a small step to the ...
sweber's user avatar
  • 7,057
7 votes

"Keep in low gear" driving a gearless electric vehicle

Electric vehicles can "engine" brake by using the drive motors as generators. As they generate electricity they consume the car's potential energy - either from speed or elevation or both. The energy ...
dlu's user avatar
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6 votes
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Are garage outlets for electric cars evolving to 120V/240V/480V or to 30A/90A?

Since you are talking about, on the base side, an outlet having 120v/20A, I'll assume you are talking about here in the States, as I don't know what's going on with the rest of the world, but voltages ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
6 votes

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

The car will charge its battery while driving, e.g. when you brake. This allows the electric motor to augment the diesel engine, reducing overall fuel usage. The result is that the charge state of the ...
Hobbes's user avatar
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6 votes

How do electric car batteries cope with the car standing idle?

As an electric vehicle owner for many years, I've found that the traction battery does not have problems with long duration idle state. If you top up the battery before heading to the airport, it will ...
fred_dot_u's user avatar
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5 votes

Why do electric motors produce peak torque instantly vs gasoline engines

To expand on @Autistic's answer… There is no need for a transmission with an electric vehicle (assuming that the speed and characteristics of the motor match the application – for applications where ...
dlu's user avatar
  • 14.5k
5 votes

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

Adding another charging socket would add more weight (slightly), complexity, and cost to each car produced of that model. And given the generally cheap and plentiful availability of power extension ...
motosubatsu's user avatar
  • 10.2k
5 votes

Batteries for electric vehicles commonly available much like gasoline

I'm not entirely sure that this question fits the primary purpose of this group BUT I have to say that I've long wondered why electric car manufacturers don't standardise on a battery format and ...
Steve Matthews's user avatar
5 votes

Batteries for electric vehicles commonly available much like gasoline

TL;DR: This idea is old, like OLD (1890s), but so far nobody has been able to set it up in a financially viable way. History The steam car, the internal combustion engine automobile, and the electric ...
David Mulder's user avatar
5 votes

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

Let's do the math! Gasoline is 32 MJ / litre, so 60 litres is 1920 MJ, or 533 kWh. However, there's only 25% efficiency in most engines, so this translates to useful 133 kWh. Electric motors are ...
juhist's user avatar
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5 votes
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Why do Electric Vehicles have higher fuel efficiency at sub-highway speeds?

Combustion engines have greatly varying degrees of efficiency, depending on the load and rpm. This is usually shown in a specific fuel consumption diagram like this: Generally, lower speed and higher ...
towe's user avatar
  • 219
5 votes
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EV Tracking & Privacy

There are two sets of EVs out there, one set is made by car companies which are retrofitting EV technology into existing car ranges, these are your incumbent auto makers, i.e. Ford, GM, Toyoto, VW ...
GdD's user avatar
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4 votes
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Is it possible to rebuild the batteries of the Nissan Leaf?

Yes, they can be. You'll probably need to find a company that refurbishes batteries, there's one that I know of in Australia so I'd say (i.e. assume) that there would be services in your area. If you'...
Aaron Lavers's user avatar
  • 1,596
4 votes

How to convert a gasoline powered vehicle to all electric

Congratulations on realizing the benefits and fun of an all electric vehicle. I am always excited to see someone wanting to convert! A budget of $3500 is pretty limiting especially considering ...
Wynand du Plessis's user avatar
4 votes

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

This is why concepts like Tesla's Powerwall will be valuable. Instead of uprating the socket and wiring to your garage, a storage battery will only need a "standard" utility power connection and then ...
Criggie's user avatar
  • 2,978
4 votes

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

Hmmm... The motor has 1500W, which means it draws 31A at 48V at full load. The inrush current can be higher, that's your 40-50A. However, this doesn't mean the motor needs 40-50A to start and 31A to ...
sweber's user avatar
  • 7,057
4 votes
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Equivalent of “gas can” for electric vehicle?

Roadside assistance vehicles for EVs exist, AAA has had trucks with Level 2 / Level 3 fast chargers on them since 2011: AAA. Apparently they've received thousands of service calls for them since ...
Skies of Solace's user avatar
4 votes

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

It seems like every (lots of people on this forum) one is mixing up what OBD is and what CAN is. OBDII is a standard ratified in 1996 in the US. This standard is required by the government and ...
vini_i's user avatar
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4 votes
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Speed limiter on Chevrolet Bolt

In general, it's more than likely a safety feature for the vehicle imposed by GM. It could be there for any of several different reasons, such as safety or possibly to prevent damage to the vehicle. ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
4 votes
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Can you pushstart a hybrid / fully electric car?

There are two reasons why a modern hybrid car could fail to start due to lack of electricity. Two reasons, because every hybrid car has two batteries (12V and HV). One is that the 12V battery is flat....
juhist's user avatar
  • 14.6k
4 votes
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In an electric vehicle, do you need to come to a complete stop before switching to low gear?

The Ford Focus Electric doesn't have a transmission per se, the gear selector is actually a mode selector for the electric drivetrain. Switching from D to R changes the polarity of the electric motor, ...
GdD's user avatar
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4 votes
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Explaining why electrical and hybrid cars always have automatic transmission

In many cases, a hybrid system uses a planetary set with multiple power inputs (IC engine and [electric] motor). The power sources work individually on say the ring and the planetary carrier, while ...
SteveRacer's user avatar
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4 votes
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Will Tesla steer if autopilot is engaged but your hand are on the wheel? If so how much force is required to overcome autosteer?

With your hands on the wheel, you will be able to feel the wheel turning as the autosteer applies steering force. If you try to gently turn the wheel yourself, it will apply an opposite force in ...
gbarry's user avatar
  • 341
4 votes

Factors Limiting EV Battery Acceptance Rate on DC Fast Chargers

You have to remember that charging curves don't stay at the maximum charging power. The fall off pretty linearly towards 80% state of charge. So, consider for example Toyota bZ4X which is available in ...
juhist's user avatar
  • 14.6k

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