Recommended collection! Sany Electric Heavy Truck Winter Car Guide

If you want to have a longer life of your car, you can't do without the maintenance of your truck. Especially in winter, the maintenance of electric heavy trucks has become the core concern of many users.

Now the Sany electric heavy truck winter car guide is presented, very dry dry goods, it is recommended to collect, repeatedly circulated and watched.

Power battery

At present, the power system of pure electric heavy trucks is mainly lithium-ion batteries, due to its chemical characteristics, the low-temperature performance will be weaker than that at room temperature, which is not suitable for high-current charging and discharge, therefore, low-temperature vehicles will cause some changes:

1. The discharge capacity of the power battery (large battery) is reduced, and the dynamics of the vehicle are weakened, which generally occurs in the case of the first trip out of the vehicle that continues to operate in a low temperature environment, and it is recommended to park the vehicle in a thermal insulation environment when not using the vehicle.

Second, the low temperature environment, in order to ensure the operation of the vehicle and protect the availability of the power battery, the power battery (large battery) will automatically start the heating function, at this time the power battery charging capacity is weakened, the vehicle energy recovery intensity is reduced, the mileage is reduced accordingly, and the power consumption of the vehicle will increase, these are normal phenomena, and there is no need to panic when using the car.

It is recommended to plug in the gun before driving or wait for heating in situ, increase the minimum temperature of the power battery to 5 °C, improve the efficiency of energy recovery, when the vehicle power SOC is lower than 30%, please charge in time, and at the same time use the warm air level reasonably to improve the vehicle endurance.

3. In order to protect the power battery system, the charging power will be adjusted according to the temperature of the power battery, and the charging time will increase by 0.5-1h.

If it is in a low temperature environment for a long time (such as below -15°C), the first charging time of the vehicle will even be extended by more than 1h. The temperature of the power battery is high after one day of operation, so it is recommended to charge it as soon as possible after the end of operation, which can shorten the charging time.

In terms of system components

1. Wiper glass water and antifreeze need to be replaced in time when it is 2 years or 60,000 kilometers, and the freezing point of the selected antifreeze should generally be more than 10 °C lower than the local temperature.

Second, if the wiper is stuck to the glass by rain and snow, do not rinse it directly with hot water, sudden temperature changes can easily cause damage to the wiper or front window, it is recommended to clean up the deep snow first, turn on the front defrost function, and blow the hot wind to the front windshield to make the wiper naturally dissolve, the electric defrost effect is to use the front window glass, if there is a warm air demand, you can turn on the defrost warm air mode.

3. Regularly pull the drain valve of the air reservoir, and the chassis air tank should be drained in a timely and effective manner to avoid cold weather, water droplets entering the braking system and freezing, resulting in brake failure.

4. In the case of low temperature, the capacity of the low-voltage 24V battery (small battery) is reduced, and attention should be paid to keeping the positive and negative binding posts clean and free of snow and ice to ensure the reliability of vehicle starting. If you need to park for more than 1 month, you need to disconnect the negative terminal post of the low-voltage battery to prevent the vehicle from being unable to power on due to the low-voltage battery feeding.

In terms of cars

1. Charging in a low temperature environment, open the key, you can blow warm air in the cab while charging, to avoid severe cold and freezing.

2. When encountering bridge decks, back-sun areas, and slippery roads with rain and snow, you should drive slowly, step on the accelerator lightly, and lightly step on the brakes to minimize the braking to prevent the vehicle from skidding caused by floating water and thin ice, causing the vehicle to lose control. Keep a sufficient safety distance from the vehicle in front when driving, and do not grab the traffic light to improve driving safety.

3. In the case of low temperature, the viscosity of the steering hydraulic oil is enhanced, and the steering oil pump will make a "buzzing" sound when playing the direction, and the steering wheel is activated in a small range intermittently for about 10 minutes to warm up the steering power system before starting.

Fourth, in terms of climbing, when the wheels on gravel or slippery roads and the wheels on steep slopes are seriously slipped, the ASR switch can be temporarily turned off, and the inter-axle lock and differential lock can be opened to improve the driving ability of the vehicle and speed up the vehicle's trouble-ridden; If it is a heavy load situation, it can also be manually downshifted to improve the climbing ability.

Instead of waiting until something goes wrong with the car and then worrying, it is better to pay attention to the details to maintain it at ordinary times. The above electric heavy truck winter maintenance cheats add a layer of protective golden bell cover to the truck to escort the winter car.