Posted on 11/08/2023 5:42:21 AM PST by Red Badger
You are so wise
I replaced a V-6 engine for $250...had less than 100 miles on it. Beats the heck out of replacing a electric motor.........
Buying a used EV is a crap shoot and could cost more to replace the failed battery than the vehicle is worth. A friend has a 10+ year old Prius that is on its third battery. The first replacement was done by her husband using a battery purchased from E-bay cost $4k not including her husband’s labor. The second replacement by a Toyota dealer ran $7k. With good maintenance an IC vehicle can often run 200,000 miles and not need an engine replacement.
It’s all Cloward-Piven, the point is to disrupt so that people won’t be able to afford personal transportation.
I have the AI acquired source called Co Pilot that was asked about psi tire load of an electric vehicle. There was no mention of the EV tire load actually being excessive.
“The weight in psi of electric vehicle tires on the road surface depends on several factors, such as the tire pressure, the tire size, the tire construction, the vehicle weight, and the road surface temperature. There is no single answer to this question, but I can provide some general information and examples based on the web search results.
The tire pressure is the amount of air inside the tire, measured in pounds per square inch (PSI). The tire pressure affects the tire contact area, which is the part of the tire that touches the road. A higher tire pressure means a smaller contact area, and vice versa. The tire pressure also affects the tire stiffness, which is the resistance of the tire to deformation. A stiffer tire has less rolling resistance, which means less energy loss and better efficiency. However, a stiffer tire also has less grip, which means less traction and braking performance. Therefore, there is a trade-off between tire pressure and vehicle performance1.
The tire size is the dimension of the tire, usually expressed in terms of width, aspect ratio, and diameter. The tire size affects the tire contact area, as well as the tire load capacity, which is the maximum weight that the tire can support. A larger tire size means a larger contact area, and vice versa. A larger tire size also means a higher load capacity, and vice versa. Therefore, there is a trade-off between tire size and vehicle performance1.
The tire construction is the design and material of the tire, such as the tread pattern, the rubber compound, the inner liner, and the sidewall. The tire construction affects the tire rolling resistance, which is the force that opposes the motion of the tire. The tire rolling resistance is influenced by the tire deformation, the tire hysteresis, and the tire slip. The tire deformation is the change in shape of the tire due to the road surface and the vehicle weight. The tire hysteresis is the loss of energy due to the repeated deformation and recovery of the tire. The tire slip is the difference between the actual and the intended movement of the tire. A lower tire rolling resistance means less energy loss and better efficiency. However, a lower tire rolling resistance also means less grip, which means less traction and braking performance. Therefore, there is a trade-off between tire construction and vehicle performance2.
The vehicle weight is the mass of the vehicle, including the passengers, the cargo, and the battery. The vehicle weight affects the tire load, which is the force that the tire exerts on the road surface. The tire load is proportional to the vehicle weight, assuming a uniform weight distribution. A higher vehicle weight means a higher tire load, and vice versa. A higher tire load also means a higher tire contact pressure, which is the ratio of the tire load to the tire contact area. A higher tire contact pressure means more stress on the tire and the road surface, which may lead to more wear and tear1.
The road surface temperature is the heat of the road surface, which may vary depending on the weather, the season, and the location. The road surface temperature affects the tire temperature, which is the heat of the tire due to the friction and the deformation. The tire temperature affects the tire pressure, the tire stiffness, and the tire grip. A higher tire temperature means a higher tire pressure, and vice versa. A higher tire temperature also means a lower tire stiffness, and vice versa. A higher tire temperature also means a higher tire grip, and vice versa. Therefore, there is a trade-off between road surface temperature and vehicle performance3.
As an example, let’s consider a typical electric vehicle tire with a size of 215/55R17, a pressure of 35 PSI, and a load capacity of 1,356 lbs. Assuming a uniform weight distribution, each tire supports 25% of the vehicle weight. If the vehicle weight is 4,000 lbs, then each tire load is 1,000 lbs. The tire contact area can be estimated by dividing the tire load by the tire pressure, which gives 28.6 square inches. The tire contact pressure can be estimated by dividing the tire load by the tire contact area, which gives 35 PSI. This means that the weight in PSI of the electric vehicle tire on the road surface is equal to the tire pressure in this case. However, this is only an approximation, and the actual weight in PSI may vary depending on the tire construction and the road surface temperature41.
I hope this information helps you understand the weight in PSI of electric vehicle tires on the road surface. “
Kid’s Tesla seemed to require a high PSI like a trailer tire. The weight is not much worse than an old Tahoe so I think the issue on Tesla tires is the very low center of gravity puts sidewall flex to the max.
I asked Copilot about Tesla tite pressure.....
The recommended tire pressure for a Tesla vehicle depends on the model, the tire size, and the tire construction. However, a general range of 40 to 45 PSI is usually recommended for most Tesla vehicles, including the Model 3, X, and S123. The tire pressure should be checked and adjusted when the tires are cold and the vehicle has been stationary for over three hours4.
The tire pressure affects the tire contact area, the tire stiffness, the tire rolling resistance, and the tire grip. These factors influence the vehicle performance, safety, reliability, and efficiency. Therefore, it is important to keep the tires inflated to the pressures shown on the tire and loading information label, which is located on the center door pillar and is visible when the driver’s door is open4.
You can also view the tire pressures on the touchscreen in the cards area on the car status display, or by touching Controls > Service. The touchscreen also displays your vehicle’s recommended cold tire pressures so you can easily determine how much to inflate your tires. You can choose whether you want to display tire pressures using Bar or PSI by touching Controls > Display > Tire Pressure. You can also view tire pressures in the Tesla mobile app5.”
Co pilot is pretty amazing
“
I asked Copilot about Tesla tire pressure.....
“The recommended tire pressure for a Tesla vehicle depends on the model, the tire size, and the tire construction. However, a general range of 40 to 45 PSI is usually recommended for most Tesla vehicles, including the Model 3, X, and S123. The tire pressure should be checked and adjusted when the tires are cold and the vehicle has been stationary for over three hours4.
The tire pressure affects the tire contact area, the tire stiffness, the tire rolling resistance, and the tire grip. These factors influence the vehicle performance, safety, reliability, and efficiency. Therefore, it is important to keep the tires inflated to the pressures shown on the tire and loading information label, which is located on the center door pillar and is visible when the driver’s door is open4.
You can also view the tire pressures on the touchscreen in the cards area on the car status display, or by touching Controls > Service. The touchscreen also displays your vehicle’s recommended cold tire pressures so you can easily determine how much to inflate your tires. You can choose whether you want to display tire pressures using Bar or PSI by touching Controls > Display > Tire Pressure. You can also view tire pressures in the Tesla mobile app5.”
Co pilot is pretty amazing
“
The same is true for rechargeable cell phones. With constant use and heavy recharging, the batteries don't last nearly that long. The dendrites start forming and short circuiting the cells. Just the same as in an EV.
And, if you think about it, internal combustion engines have the same problem only that it is due to friction and tolerances. If you use your car heavily as in Uber with multiple drivers 24x7, the engine will wear out in less time than you think even with good maintenance. And rather than just replacing a battery, it is better to replace it with a refurbished engine (still less cost than an EV battery).
I'd say EVs are not good under heavy use. We need more robust batteries before they would be just as good.
So in 2019 he spent 53k on an ev and over this usage saved 10k, which I presume is the difference between gas and charging fees.
I think it would’ve been easy to find a good car for less than 43k in 2019.
My daughter had a Ford Escape hybrid. When the battery side developed a problem, the ICE quit working too.
Something doesn’t add up with this article. He bought the car used in 2022 for $53K. The battery range in the article suggests a base model for around $35K new in 2019.
While you’re factoring in his cost/savings numbers, add this...
Uber drivers earn an average of 83 cents per mile. He drove 120,000 miles.
Thats a gross profit of $99,600.
Impressive? Not even. Add in the $53K he spent on the car. And God knows how many tens of thousands he spent charging the car. And $9,000 for a battery.
I can’t see how an ICE ride share driver makes a dime doing this, much less an EV driver.
I never had to worry about “degradation” when I fill up my gas powered car!
A new battery for my 2016 Honda Accord Sport is $149
Nice.
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