Recently, as China has fully entered
winter, nighttime temperatures in many northern regions have dropped below
freezing. To ensure electric mixer trucks maintain stable performance and
reliable range during the cold season, industry experts have released a
systematic winter operation technical guide. This guide provides comprehensive
technical support for low-temperature usage and maintenance, covering
everything from power battery and system component inspections to winter
driving operations.
Power Batteries: Prioritize Thermal
Management and Extend Lifespan Through Scientific Charging
Technicians note that electric mixer truck
batteries experience reduced discharge capacity and diminished power output in
low temperatures. Prolonged exposure to extreme cold may cause irreversible
damage. Therefore, winter battery management must focus on thermal protection.
When vehicles are parked for extended periods, store them in
temperature-controlled warehouses whenever possible, avoiding overnight
exposure to open-air freezing conditions. Before operation, perform “battery
warming” by plugging in for charging or using stationary heating to raise the
battery's minimum temperature above 5°C. This enhances discharge efficiency and
energy recovery while ensuring timely recharging when SOC falls below 30%.
Additionally, avoid high-current rapid charging in winter. Low temperatures
cause the charging system to automatically reduce power, extending charging
time by 0.5–1 hour. Users should plan charging intervals reasonably to prevent
rapid charging from impacting the battery.
System Components: Preemptive Inspection
for Freeze Protection, Damage Prevention, and Power Outage Prevention
Beyond the power battery, multiple vehicle
system components are affected by low temperatures, making pre-winter
inspections and maintenance critical. The technical team recommends promptly
replacing components prone to freezing, such as windshield washer fluid and
antifreeze. Their freezing points should be at least 10°C below the local
minimum temperature, with replacement scheduled after 2 years or 60,000
kilometers of vehicle operation. Additionally, low temperatures can cause
capacity degradation in the 24V auxiliary battery. Keep terminals dry and free
of frost to ensure reliable vehicle starts. If the vehicle will be parked for
over a month, disconnect the auxiliary battery's negative terminal or remove it
entirely for separate storage in a warm environment to prevent deep discharge
that could render the vehicle inoperable.
Winter Driving: Optimize Control for Range
and Safety
Winter driving presents challenges like low
temperatures, ice, and slippery conditions, making prudent driving essential.
During charging, drivers can pre-activate the ignition switch and use the
heater to reduce cold exposure and accelerate cabin comfort restoration. When
navigating icy or snowy roads, avoid sudden acceleration and braking. Maintain
a habit of gently applying the accelerator and brakes to minimize the risk of
skidding on slippery surfaces and enhance safety. Low temperatures can also
thicken steering hydraulic fluid, causing a “humming” noise. Before departure,
preheat the power steering system by intermittently turning the steering wheel
slightly left and right for about 10 minutes to improve handling smoothness.
Industry experts emphasize that proactive
maintenance and inspections during routine operations are preferable to waiting
for malfunctions to occur. Comprehensive winter vehicle maintenance not only
significantly enhances the reliability and safety of electric mixer trucks in
cold conditions but also helps users reduce energy consumption and extend
vehicle lifespan. This approach delivers a more economical, stable, and
worry-free operational experience throughout the harsh winter season.
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