Choosing a car today is like cruising through a minefield, where every step is a compromise between what is desired and what is possible. combustion-system or take a risk and go to the front line electric vehiclesThis question has ceased to be a mere technical question, becoming an economic and even philosophical solution that will shape the way of life for the years to come.
On the one hand, gasoline engines offer the freedom of movement and the familiar infrastructure of gas stations that are available in every community, on the other hand, electric traction lures with silence, instantaneous reaction to the accelerator pedal and lack of exhaust gases. Not only is the price of fuel a critical factor, but also the availability of charging stations in your area. Understanding the physics of processes will help you make an informed decision.
In this article, we'll look at both types of powertrains, compare their efficiency and durability, and you'll learn why the efficiency of the electric motor is higher, but why gasoline still rules the ball at long distances. We'll not give you ready-made answers, but we'll provide you with facts so you can decide what's more important to you.
Principles of work and design features
A gasoline engine is a complex mechanism that converts the thermal energy of combustion into mechanical work. Inside the cylinders, a mixture of air and gasoline detonates, pushing the pistons through the crankshaft, a process that is accompanied by high noise, vibration and significant heat generation, requiring a complex cooling system.
Unlike him, motor It's based on electromagnetic induction, and the current that flows into the stator windings creates a magnetic field that makes the rotor spin. There's no explosions, no rubbing parts in the classical sense (except bearings), and the number of moving parts is in units, not in hundreds, like in the combustion engine.
The simplicity of the electric motor makes it theoretically more reliable, but the real picture is more complicated. A gasoline unit has thousands of parts, and failure of one can paralyze the entire system. inverterIt is also used in controllers and, of course, in a chemical battery that degrades over time.
- ⚡ A gasoline engine requires a complex intake, exhaust, lubrication and cooling system to maintain operating temperatures.
- 🔋 The electric motor does not need a transmission in the traditional sense, as it develops maximum torque from zero revolutions.
- 🛠️ The number of parts in the internal combustion engine can exceed 2000 units, while in the electric drive they are an order of magnitude less.
⚠️ Warning: High voltage on the on-board network of an electric vehicle (up to 800 volts) is a deadly danger if unqualified intervention is strictly prohibited.
Technological nuances of recovery
In electric vehicles, when braking, the motor acts as a generator, returning energy to the battery, which not only increases the range, but also significantly reduces the wear of brake pads, which can last more than 200,000 kilometers in an urban cycle.
Cost-effectiveness and cost of ownership
When buying a car, the price tag is just the tip of the iceberg. Cost of ownership It's made up of fuel or electricity costs, maintenance, insurance, and resale value loss, and gasoline has traditionally been considered expensive, especially in the face of rising taxes and environmental charges.
Electricity is generally cheaper than gasoline per kilometer, but there is a caveat: charging at home at night rates or on public slow charges can make a kilometer cost comparable to a gasoline equivalent, especially if electricity rates are high in the region.
Service electric It's cheaper because you don't have to change the oil, filters, candles and belts of your timing system. But replacing the traction battery after the warranty expires can cost up to half the price of a new car, which is a huge financial risk. The gasoline engine, if properly maintained, runs 300,000-400,000 kilometers, and it will cost much less to overhaul or replace it than a new battery.
Insurance companies are cautious about electric cars, often overcharging because of the high cost of parts and diagnostic difficulties, while many countries offer incentives for green vehicles, including free travel on toll roads and parking lots.
Dynamics, productivity and manageability
If we talk about the drive, here electric It wins the city cycle unconditionally, and instantaneous peak torque allows electric cars to jump off traffic lights and overtake confidently, and the absence of the latency that turboholes or gear shifts can make acceleration linear and predictable.
Gasoline engines, especially turbocharged ones, take time to unwind the turbine and set speeds. However, at high speeds over 120 km/h, ICEs often feel more confident. Electric cars suffer from the fact that after a certain speed threshold, thrust drops and energy consumption increases exponentially. In addition, constant abrupt accelerations in an electric car can quickly land a battery.
The handling is also structure-dependent. A heavy battery in the floor lowers the center of gravity, which reduces the rolls in corners. But the total weight of electric cars often exceeds the mass of gasoline equivalents by 300 to 500 kg, which affects inertia and braking distance. In extreme situations, physics is the case: heavy cars are harder to stop.
| Parameter | Gasoline engine | Electric motor |
|---|---|---|
| Engine efficiency | 25-35% | 90-95% |
| Maximum torque | Achieved at high speeds | Available from 0 rpm |
| Noise level | High (requires isolation) | Minimum |
| Transmission complexity | Multi-stage BCP | Single-stage gearbox |
An electric car is ideal for a city due to its instant response, but on the road, a gasoline car is often more efficient and predictable at high speeds.
Resource, reliability and maintenance
Reliability is a relative concept. Gasoline engine It's been a long way in evolution, and its weaknesses are well studied by mechanics around the world. Regular changes in oil, filters and candles can extend the life of the engine to a "near new" state. But the complexity of the design means that there are things to break down here, from sensors to fuel pumps.
Electric cars are devoid of many “consumers”, but their reliability depends on the electronics and the state of the battery cells. Lithium-ion batteries They're afraid of deep discharge, overcharging and extreme temperatures, and the battery's thermoregulation system is a critical node that can cause costly repairs.
In harsh winters, a gasoline car warms up quickly, using engine heat to heat the cabin. The electric car uses battery power to heat it up, which can reduce the range by 30-50%. In addition, in the cold, the chemical processes in the battery slow down, reducing the return of power.
- 🛢️ The engine requires regular replacement of engine oil every 10-15 thousand km of run.
- ❄️ The electric car loses up to half of its power reserve at a temperature of -20 C and below without prior warming up.
- 🔧 Diagnostics of an electric vehicle require specialized equipment and high-level qualifications.
⚠️ Attention: Frequent use of fast chargers (Supercharger and analogues) accelerates the degradation of battery cells.
☑️ Check before buying a used electric car
Environmental and environmental impact
Environmental issues are often the deciding arguments for electric cars: locally, electric cars don't produce any emissions, which improves urban air quality. But when you look at the full life cycle, the picture becomes more complicated. Electricity production for charging is still often based on burning coal and gas.
Moreover, the production of the batteries themselves is extremely energy-intensive and dirty, and mining lithium, cobalt and nickel causes significant damage to ecosystems. Gasoline car It starts polluting the environment only from the moment of engine start-up, while the electric car "environmentally pays off" only after 30-50 thousand kilometers of mileage, compensating for the damage from its production.
However, the efficiency of the electric motor allows less primary energy to be spent on the movement. With the development of renewable energy (sun, wind), the carbon footprint of electric vehicles will decrease, while the combustion engine is already close to its technological efficiency ceiling.
When choosing an electric car, check the source of electricity in your area. If electricity is produced from coal-fired power plants, the environmental impact of switching to an electric car is significantly reduced.
Infrastructure and ease of use
The main barrier to mass electric transportation is infrastructure. There are gas stations everywhere, and the refueling process takes 5 minutes; charging an electric car even at a fast station takes 30 minutes to an hour, and on a regular outlet it takes all night. Owners of apartments in high-rise buildings without their own parking with a socket can become a quest.
Planning long-distance trips by electric car requires careful route preparation with the location of charging stations. In remote regions, having a proper charge is a lottery. A gasoline car gives you the freedom of spontaneity: you can go anywhere without looking at the charging map.
But for those who can charge at home, the electric car is incredibly convenient, because you get in the car every morning with a full tank, and the question of gas stations goes away, and it changes your habits: you don't "refuel" anymore, you just park.
How to calculate the real cost of 1 km of travel?
For gasoline, divide the price of a liter by the average consumption (l/100 km) and multiply by 100. For electricity, multiply the tariff per kWh by the average consumption (kWh/100 km).
Does the power reserve fall significantly in winter?
Yes, at temperatures of -15°C or below, the range can be reduced by 30-40% due to the heater and the reduced chemical activity of the battery.
What to do if the charging is over on the way?
Towing an electric vehicle with rotating wheels is often prohibited by manufacturers, as the motor can operate as a generator and damage electronics.
What is the life of a modern battery?
Modern lithium-iron-phosphate (LFP) batteries retain 80% of their capacity after 2,000-3000 charging cycles, which is equivalent to 400-600 thousand km of run.
Can I charge an electric car from a regular outlet?
Yes, but only if the wiring in the house is good and can withstand long loads, it is recommended to use special chargers with protection and install a separate line.