What are the maintenance items of new energy vehicles?
There are some differences in driving modes between electric vehicles and traditional vehicles. Therefore, the major difference between their maintenance is that the maintenance of traditional cars mainly involves the maintenance of the engine system, and the oil and machine filters need to be changed regularly. The pure electric vehicle is driven by a motor and does not need routine maintenance such as oil, three filters and belts. New energy vehicle maintenance The main maintenance items of the "three electric systems" are battery, motor and power system, followed by chassis maintenance, oil maintenance, air circuit inspection, air conditioning system, brake pads, wipers, tires and other vulnerable parts replacement and maintenance, and the daily maintenance of the cooling system, braking system, transmission suspension is similar to that of traditional cars.
Car maintenance - three electricity system
The inspection of "three electricity system" is the key point of electric vehicle maintenance, and it needs to go to the 4S shop regularly to access the computer to check the parameters. Although entering the store is only to insert the computer through parameters, it is far more important than routine visual inspection.
The battery part mainly looks at the information of the battery pack to prevent self ignition caused by overheating of individual waste batteries during charging and discharging. Motor speed regulation is to control the input voltage through ECU. Generally, there is a single-stage gear set for speed change. It is necessary to check the lubrication condition. The lubricating oil change cycle is about 60000 km.
In addition, the antifreeze of new energy vehicles is also different from ordinary vehicles. Its main purpose is to cool the motor. The antifreeze needs to be replaced every two years, or depending on the driving distance of the specific model.
Some friends may worry that although electric vehicles do not have an engine gearbox, the price of batteries, motors and electronic controls is very high. If it fails, it will be a big expense. There is no need to worry about this. Generally, the after-sales service of manufacturers includes these. Usually, the power battery and key components are guaranteed for 8 years or 150000 km.
How long is the maintenance cycle of electric vehicles?
When buying a car, consumers will receive an owner's manual with a maintenance schedule that clearly tells the owner when and how to maintain the car. The maintenance cycle of new energy vehicles varies from brand to brand and model to model. The first maintenance is required at least one month or 3000 km, while most models require the first maintenance after one year or 10000 km. Therefore, it would be better to maintain according to the maintenance manual. It should be noted that the maintenance mileage should also be determined according to the specific use of the car. Guangxi TESTU Automobile Technology Co., Ltd. needs to shorten the maintenance mileage properly if it often runs on mountain roads or at high speeds.
Maintenance methods of new energy vehicles
1. Avoid high current discharge
When starting, carrying people and going uphill, try to avoid rapid acceleration. This will result in instantaneous high current discharge. However, the high current discharge of electric vehicles will easily lead to electrode crystallization, damage the physical properties of the battery panel, and reduce the service life of the battery panel.
2. Avoid power loss during storage
The so-called power loss state means that the battery is not charged in time after use. It is easy to lead to battery sulfation, blocking the electric ion channel, leading to insufficient charging and battery capacity decline. The correct way is to charge the battery once a month to keep it healthy even if the battery is idle. Due to the modern BMS battery management system of dry battery, even if the charging time is slightly longer, it will not affect the car.
3. Master the correct charging time
In terms of charging, correctly control the charging time of the car to avoid loss driving and overcharging. Refer to the usual use frequency and mileage to master the charging frequency. During normal driving, if the red and yellow lights on the meter are on, it should be charged in time; If only the red light is on, stop running and charge as soon as possible, otherwise excessive discharge of the battery will seriously shorten its service life.
If the operation time after charging is short, it will be recharged again, or if the charging time is too long, it will form overcharging, which will cause the temperature of the battery to rise. Overcharging, overdischarging and undercharging will shorten the battery life. The average charging time of the battery is generally about 10 hours. When the battery temperature exceeds 65 ℃, stop charging.
4. Check the tire pressure frequently
The tire pressure must be checked every two weeks or at least once a month to maintain the correct tire pressure. Incorrect tire pressure will increase power consumption, reduce endurance, shorten driving mileage, reduce driving comfort, reduce tire life, and reduce driving safety.
5. Prevent exposure to the sun
Electric vehicles should avoid being exposed to the sun. The high temperature environment will increase the internal pressure of the battery, make the battery lose water, cause the battery activity to decline, and accelerate the aging of the electrode plate.
During use, if the range of the electric vehicle suddenly drops by more than 10km in a short time, it is likely that at least one battery in the battery pack has a problem. At this time, you should go to the sales center or the agent maintenance department in time for inspection, maintenance or matching, so as to relatively extend the service life of the battery pack and greatly save your costs.
