Want your car to last longer?，That is inseparable from the maintenance of the truck.。Especially in winter.，The maintenance of electric heavy trucks has become the core concern of many users.。

The winter vehicle guide of Sany electric heavy truck is now presented.，Very dry dry goods.，Suggested collection，Pass it around and watch it。

Power battery

At present, the power system of pure electric heavy truck is mainly lithium-ion battery.，Due to its chemical properties，Low temperature performance will be weaker than normal temperature.，Specifically, it is not suitable for large current charging.、Discharge，So，Low temperature vehicles will cause some changes.：

One、Power Battery（Big battery）The discharge capacity is reduced，The power performance of the whole vehicle is weakened，Generally, it occurs when the vehicle is continuously in a low temperature environment and does not operate for the first time.，It is recommended to park the vehicle in an insulated environment when not in use.。

Two、Low temperature environment，In order to ensure the operation of the vehicle and protect the availability of the power battery，Power Battery（Big battery）The heating function is automatically activated，At this time, the charging capacity of the power battery is weakened.，Reduction of vehicle energy recovery intensity，The range is reduced accordingly.，The power consumption of the whole vehicle will increase，These are all normal phenomena.，Don't panic with the car.。

It is recommended to charge the gun before driving or wait for heating in situ.，Increase the minimum temperature of the power battery to 5℃，Improve energy recovery efficiency，In the vehicle powerSOCBelow 30%Time，Please charge it in time，At the same time, the level of warm air should be used reasonably.，Improve vehicle endurance。

Three、Low temperature environment，Large current charging will affect the power battery.（Big battery）Damage to the system，The service life of the power battery will be reduced.，To protect the power battery system，The charging power will be adjusted according to the temperature of the power battery，Charging duration will be increased by 0.5-1h。

If you are in a low temperature environment for a long time（Such as-15℃Following）The duration of the first charge of the vehicle will even be extended by 1hAbove。The temperature of the power battery is higher after one day's operation.，It is recommended to charge as soon as possible after the end of operation.，The charging time can be shortened。

System component aspects

One、Wiper glass water、Antifreeze at 2 years or 60,000km，It needs to be replaced in time，The freezing point of the selected antifreeze should generally be 10 ℃ lower than the local temperatures℃Above。

Two、If the wiper is stuck to the glass by rain or snow，Do not rinse directly with hot water.，Sudden temperature changes can easily cause damage to the wiper or front window glass，It is recommended to clear the deep snow first.，Turn on the front defrost function，Hot air blows to the front windshield，Make the wiper open naturally，The electric defrosting function is used for the front window glass.，If there is a need for warm air，Defrost and warm air mode can be turned on。

Three、Pull the drain valve of the air reservoir regularly.，The chassis air storage tank shall be drained timely and effectively，Avoid cold weather，Water droplets enter the brake system and freeze.，Resulting in brake failure。

Four、At low temperatures，Low pressure 24VBattery（Small battery）Capacitance is reduced，Pay attention to keep the positive and negative terminals clean and free of snow and ice dew.，Ensure the reliability of vehicle startup。If it needs to be parked for more than 1 month，The negative terminal of the low-voltage battery needs to be disconnected，Prevent the vehicle from being unable to power on due to low-voltage battery feeding，If it is parked in a low temperature environment for a long time，Storage of removable battery in room with suitable temperature。

In terms of cars

One、Charging in low temperature environment，Open the key，You can blow warm air in the cab while charging.，Avoid cold and cold。

Two、Meet the bridge deck、Backlight area、Wet and slippery road surface with rain and snow，You should slow down，Step on the accelerator lightly and step on the brake lightly.，Minimize braking，Prevent vehicle skidding caused by floating water and thin ice，Causing the vehicle to lose control。Keep enough safe distance from the vehicle in front when driving，Don't grab the traffic lights，And that drive safety is improved。

Three、At low temperatures，Increased viscosity of steering hydraulic oil，When turning the direction, the steering oil pump will send out“Buzz”Sound，Fire before departure，Intermittently move the steering wheel in a small range to warm up the steering power system for about 10 minutes before starting.。

Four、In terms of climbing，Gravel or wet road surface，Serious wheel slip on steep slope，Can be temporarily closedASRSwitch，Open the interaxle lock、Differential lock，Improving the driving ability of vehicles，Speed up the vehicle to get out of trouble；If it is a heavy load case，You can also downshift manually.，Improve the climbing ability。

It's better to wait until the car has a problem and then worry.，It is better to pay attention to the details to maintain in peacetime.。Above electric heavy truck winter maintenance tips，A protective golden bell jar was added to the truck.，Escort the use of cars in winter。