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Electric cars?

Would you buy an electric car?

  • Already own one

    Votes: 10 5.1%
  • Yes - would definitely buy

    Votes: 43 21.7%
  • Yes - preferred over petrol car if price/power/convenience similar

    Votes: 78 39.4%
  • Maybe - preference for neither, only concerned with costs etc

    Votes: 38 19.2%
  • No - prefer petrol car even if electric car has same price, power and convenience

    Votes: 25 12.6%
  • No - would never buy one

    Votes: 14 7.1%

  • Total voters
    198
As a practical observation, people often do bizarre things with heating / cooling in cars.

Like running the A/C compressor literally every time they drive the car whether needed or not, then turning the heating up if they feel cold. Unless the aim is to reduce humidity, which sometimes it is but usually it isn't, then that's a bizarre thing to be doing.

Oh how I wish our schools would put more focus on teaching physics.
 
As if neither the motors or the batteries need cooling in EV?
More a matter of design not (yet) good enough to get this extra heat back into the cabin at will
 
As if neither the motors or the batteries need cooling in EV?
More a matter of design not (yet) good enough to get this extra heat back into the cabin at will
The electric motor loses very little heat compared to a petrol motor, and they actually use the small amount of heat they lose to keep the battery warm.

Just look at the efficiency of the petrol motor run about 35% efficiency, and most of that lost energy is heat, hence why you need large radiators.
 
not my 2019 model 3, it uses resistance heating for the cabin.

Also, the Heated seat suggestion vs the cabin heater comes from Tesla themselves, even though is less efficient per unit of heat, the fact you are directly heating your body vs the cubic metres of air in the whole cabin means it takes less heat.
 
I have my climate control set to 22 in the car, and it sits there pretty much all year, sometimes I drop it down to 21.
 
I have my climate control set to 22 in the car, and it sits there pretty much all year, sometimes I drop it down to 21.

I have found that having the climate control on all year round improves the reliability of the A/C system.

When the A/C is running the compressor is pumping the refrigerant and lubricant around the whole system, the internal pipes, valves and other components remain wet and protected from acids and moisture corrosion.

Having the system turned off for long periods causes the lubricant to fall to the lowest spot, internal components lose the protective oil barrier and become susceptible to corrosion. The compressor is prone to vibration damage when stationary for long periods and continual engine vibration, which causes the compressors internal components to vibrate with no lubricant barrier.
 
When reading about vehicle A/C last night, an maintenance guy did suggest running it atleast every 2 weeks.
 
When reading about vehicle A/C last night, an maintenance guy did suggest running it atleast every 2 weeks.

Yes, always recommended. Though few owners remember to do it. Some manufacturers, like Nissan, used to have the A/C compressor operate when selecting Reverse.

It doesn't matter the quality or how good the refrigerant hoses are, they are permeable. A coating of lubricant on the inside of the hoses improves the sealing and reduces refrigerant loss significantly, The lubricant is distributed by refrigerant flow controlled by the compressor.
 
Spot on @JohnDe your post is a good heads up for members, even home A/C's should be given a run an a regular basis, otherwise when you need them they don't work, for the reasons you have covered.
 
As if neither the motors or the batteries need cooling in EV?
More a matter of design not (yet) good enough to get this extra heat back into the cabin at will
And for more details on thermal mgt for EV:
Plenty of heat available to warm the habitacle..but not as easy as pumping air from an ice engine room
 

Heat is energy. Energy produces heat. Which uses energy more efficiently, an engine or a motor?

Combustion engines are stupefyingly inefficient. Most diesel engines do not even have a thermal efficiency of 50%. Of every gallon of diesel burned by a combustion engine, less than half of the energy generated becomes mechanical energy.
And, petrol-powered vehicles are even more inefficient, considerably more inefficient.
While it may sound like a vehicle that only converts 50% of the thermal energy it produces during combustion into mechanical energy is extraordinarily inefficient, many vehicles on the road actually waste close to 80% of the energy produced during the combustion of fuel.

Internal combustion engine vs electric motor

Although the internal combustion engine and the electric motor are used for the same purpose, their construction and modes of operation are completely different. By comparing the two types of drive, the advantages of the electric motor become clear. The electric motor requires fewer (moving) parts. These are also less susceptible to wear and tear. This results in lower maintenance costs. Electric motors also work much more efficiently than internal combustion engines. This means that 80% of electrical energy can be converted into propulsion, whilst only 20% is lost as heat. With a internal combustion engine, on the other hand, only about 25% of the energy generated can be used for propulsion.
 
I think you need to get your facts a bit straighter, Yes the motor in a Tesla produces heat when its moving, but no where near the amount of heat that an Ice car does and It does idle like an ice car. Most of this waste heat is diverted to the battery to keep it at its ideal temp, because except for when its super charging or under really higher loads or in really hot weather the battery doesn't need cooling, it actually needs warming.

If there is excess heat it can be used to heat the cabin, I have tested this at the super charger when I set the climate control to 25 degrees (when it was 16 degrees outside), and I turned the A/C off but warm air was still coming out of the vents, although not as warn as if I had the heater running, but there was heat being put into the cabin.

I know you really like to try and find flaws in Ev's, but you are just wrong on this one. Think about it, there is only a small electric motor in a Tesla located between the back wheels, and that electric motor is about 90% efficient meaning only about 10% of the energy put into it gets lost as heat, however a petrol Motor is only about 40% thermally efficient meaning 60% of the energy is lost as heat.

Reclaiming some of that 60% energy lost to heat the cabin for a few months of the year is good, but it is much better to just not lose that heat in the first place, and only have to pay for the heat you actually want.
 
Good morning,
Published today (26/11/22).

2022 News Corp Car of the Year finalists revealed​

Some game-changing vehicles have hit the market this year, setting new benchmarks in nearly every type of vehicle segment in Australia.
Dom Tripolone
4 min read
November 24, 2022 - 8:30PM
News Corp Australia Network

Electric vehicles may still be a rare sight on Australian roads, but they make up a large part of the field for the 25th running of News Corp’s Car of the Year.
Out of the eight finalists, three are electric vehicles and one is a hybrid, leaving just two diesel and two conventional petrol cars.

Ford’s Ranger and Everest are a triumph for a local car industry that was prematurely declared dead several years ago.
More than 2500 Australian designers and engineers helped to develop the ute and four-wheel-drive wagon, which are sold in more than 180 countries around the world. But the two diesels represent the old guard in an industry that is increasingly focused on electric vehicles.

Tesla sparked the revolution and it is represented by the Model Y. BYD, which is relatively unknown in Australia but recently overtook Tesla as the world’s biggest electric car maker, will provide stiff opposition, as will Kia with its EV6.

Nissan’s popular X-Trail, Toyota’s hybrid Corolla Cross and Subaru’s thrilling BRZ complete the field. Some top quality machines have missed the cut. The new Mercedes-Benz C-Class, a former Car of the Year winner, is not on the list. Neither are the Audi A3, Mitsubishi Outlander or Volkswagen Golf R. Here are the finalists:

Which car should win the 2022 News Corp Car of the Year?​


BYD Atto 3

Ford Everest

Ford Ranger

Kia EV6

Nissan X-Trail

Subaru BRZ

Tesla Model Y

Toyota Corolla Cross
 
BYD prices start to rise, on increase in material costs.
From the article:

The extended-range model has also seen a price increase of $2,000 NZD. That’s before on-road costs or subtracting NZ’s Clean Car Discount.
With prices of raw materials and transportation increasing, these prices are expected for more affordable EVs like those offered by BYD.
It’s not only BYD indicating price increases but others like Polestar have done the same with much sharper price increases in the Chinese market.
It’s currently unclear if the price increases will follow here in Australia but given what we have seen across the ditch in New Zealand, the new BYD Atto 3 in Australia is currently a bit of a bargain for anyone looking at an affordable ground-up EV.
 
 
Barely makes the news when it’s petrol cars, but could you imagine if this was Tesla?

 
Good evening JohnDe have been thinking about EV's since you invested way back when. Since then though a family I do a lot of work for, and he is no dud, have bought a Hybrid model. in under 12 months the battery died leaving him stranded in the middle of South Perth at a medical facility. Quite an expensive exercise to get a replacement battery and get and running again. BUT me and she are still toying with the idea, and our nxt and final vehicle purchase will either a full EV or a Hybrid. 50/50.
 
Wouldn’t that be covered under warranty?

Teslas have an 8 years warranty on the battery.
 

Did your friend purchase ,a 'new' for him, second hand hybrid vehicle?

A new under warranty hybrid should have all components covered under warranty, unless the owner has done something to void the warranty.

By the time you are ready to purchase there will be a lot more options and information.

 
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