1、 Dynasty series hybrid model (DM-i) deep maintenance
Intelligent maintenance of power battery
Complete at least one complete charge and discharge cycle per month (from 20% to 100% battery capacity), which can trigger the voltage self calibration function of the battery management system and eliminate abnormal voltage differences between individual batteries.
When parked for a long time, it is recommended to maintain the SOC in the range of 40% -60%, which can minimize the risk of lithium ion crystallization (laboratory data shows that the battery capacity decay rate increases by three times under extreme charging and discharging conditions).
Precise engine maintenance
HEV mileage must be replaced with 0W-20 low ash special oil every 5000km or 6 months (whichever comes first), which can perfectly adapt to the frequent start stop characteristics of the hybrid system.
The boiling point value of high-pressure coolant needs to be tested every 12 months (standard should be>135 ℃). In hybrid mode, when the battery level is below 15%, the system will forcibly start the engine for charging. At this time, it is recommended to switch to sport mode to reduce battery overdischarge.
2、 Special Guide for Ocean Series Pure Electric Vehicle (EV) Models
The secret to longevity of battery packs
It is recommended to adopt a 30% -80% shallow charging and discharging strategy for daily commuting (Ningde Times experiment has confirmed that this interval can improve the cycle life to 4000 times). After using DC fast charging, it should be left to rest for 30 minutes to allow the battery management system to complete balanced compensation.
10 minutes before departure from cold regions (below -20 ℃), remotely turn on the battery preheating through the APP. It is recommended to use a sunshade during outdoor charging in summer to avoid the battery cell temperature exceeding the critical value of 45 ℃.
Intelligent optimization of braking system
Every 20000 kilometers, a professional tester is required to measure the water content of the brake fluid (exceeding the standard can cause a 20% extension in braking distance). It is recommended to prioritize the use of DOT4 grade brake fluid.
It is recommended to set the energy recovery intensity to the "standard" gear, which can reduce the frequency of mechanical brake use by 70% in urban working conditions (measured data from Dolphin models).
3、 The golden maintenance rule for all models in the series
After OTA upgrade, it is necessary to reset the maintenance reminder
