No engine needs maintenance? Guide to maintenance of electric vehicles

With the gradual electrification of various car companies, pure electric vehicles have become the first new choice that everyone will consider when buying a car. With the growth of users, the maintenance of electric vehicles has gradually become the focus of attention. Although there are essential differences in driving modes between pure electric vehicles and fuel vehicles, they still need daily maintenance and repair during use. Today, let's take a look at how pure trams should be maintained.

1, engine comparison motor

The biggest difference between pure electric vehicles and fuel vehicles is the driving mode. Traditional cars generally need to maintain the engine system regularly, such as changing the engine oil and mechanical filter regularly to keep the engine lubricated, while electric cars do not need to change the engine oil, mechanical filter and belt. In addition, the crankshaft, connecting rod, piston and piston ring in automobile engine belong to active friction, and active friction needs to be lubricated by oil pressurized by oil pump. Engine oil can reduce the friction coefficient, and it can also play the role of cooling and taking away the tiny metal chips produced by friction. After a long time or when the mileage is up, it is necessary to change the oil and machine filter.

But the power conversion rate of the motor is relatively high, and the temperature of the working environment is more friendly than that of the engine. Therefore, the motor of the electric vehicle is usually lubricated with long-life grease at the bearing, which basically covers the service life of the electric vehicle, so there will be no accidents and basically no need for motor maintenance.

2. Other maintenance

In other maintenance projects, pure electric vehicles are almost the same as traditional fuel vehicles. For example, both brake fluid and brake disc need to be replaced for inspection and replacement. Because most of the braking force is recovered by the motor, the wear of the braking system is greatly reduced, so the brake disc replacement frequency of pure electric vehicles is much less than that of traditional vehicles.

Tire problems should also be taken seriously, and the tire pressure is too high or too low. It may increase power consumption and shorten cruising range. In addition, electric vehicles also need to be regularly equipped with glass water.

In addition to these special maintenance, the maintenance interval of electric vehicles is similar to that of ordinary fuel vehicles. Take the Tesla model? Generally speaking, the official suggestion is to change the air filter every 65,438+02 months, check the tire transposition, dynamic balance and four-wheel alignment every 65,438+06,000 ~ 20,000 kilometers, and check the brake fluid once a year. The gasoline vehicles in synthetic engine oil are also every 65,438+02 months or 65,438+.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.