The invention discloses a special
power battery management system for an
electric vehicle and an implementation method thereof. The
power battery management system comprises a central control module, a measurement and control module, a
battery pack, a
motor controller, a direct-current motor, a vehicle-mounted charger, a current and electric quantity detection module, a vehicle-mounted
liquid crystal display module, a switching group, a
memory module, a
clock module and a temperature management module. The
system realizes communication of the central control module with the measurement and control module, the vehicle-mounted charger, the
motor controller and the vehicle-mounted
liquid crystal display module by only using a CAN communication
bus. The battery
management system has three working
modes of charging, discharging and fault, and can realize acquisition, management and control for all parameter information on
voltage, temperature, current, electric quantity and the like for the battery of the
system, safe charging and fault early warning of the battery. Compared with the prior art, the battery management
system has the advantages of higher reliability, charging safety,
stable system work, comprehensive function and convenient subsequent expansion.