Function Introduction Of Electric Parts - Doohan iTango Service Manual

Function introduction of electric parts

Battery:
The battery is power for electric scooter. It is 18650 ternary lithium battery cells from Japan and South Korea system for our
E-scooters. by the series To enhance the total capacity of the battery with series system and improve the total voltage of the battery
with parallel system, To complete the management of the battery by BMS system, BMS functions including over discharge protection,
overcurrent protection, temperature protection, short circuit protection, balanced the dropout voltage of battery cells, SOC power
display, CAN communication, The battery will automatically dormant and stop output when the output current is lower than 2A, the
battery plug can be hot-swappable, battery output Controlled by K- (Ignition lock). Recommendation: If the vehicle is not used for a
long time, disconnect the battery plug from the vehicle.
Controller:
The controller is core parts of electric system to control the motor rotate speed with FOC vector control technology, Lower starting
noise, with functions such as under voltage, current limiting and overcurrent protection. Motor is available for energy recovery as a
generator when braking.
Motor:
The motor is a component to turn the electric energy into mechanical energy, and to drive the wheels rotation. This E-vehicles
equipped with the three-phase DC brushless wheel hub motor, consists of rotor, stator, magnet, Hall components and other
components, with high efficiency, low noise and other advantages.
Charger
The charger is a device to charge the battery. The charger should connected with the battery when battery charging, first you need to
connect the charger output and battery, then connect the charger with regular electric, otherwise the charger couldn't enter into the
charging state; The charger have precharge function, To 2A pre-charge when the battery voltage is lower than 46.4V and higher than
35V.if the battery voltage is higher than 46.4V, it is normal charging current for battery charging.
DC-DC Convertor：
DC-DC converter is convert the battery voltage to 12V in order to power supply for electric parts as 12V required by operating voltage,
such as dashboard, lamps and horn etc. 12V converter output was controlled by the enable line (ignition lock) to avoid impact by
instantaneous and high current for ignition lock.
VCU：
VCU is the central control system of vehicles and transceiver parts of vehicles data. Built-in SIM card, GPS positioning module,
gyroscope, etc., For example, you can check the vehicle's position on the APP after SIM card received the information and send to
server by GPS location. as well as the vehicle's data and status will be updated to show on APP through this way. You will get remind
message if vehicles is rolled or fall after checked by Gyro, this part built-in battery. When the built-in battery is fully charged and the
vehicle battery is disconnected, the built-in battery can still support 20 hours at least.
Accelerator
To adjust the rotate speed of motor and vehicle speed by accelerator rotation after power connected. When using the accelerating
switch, it is required to rotate lightly when accelerator rotating.
Anti-theft device
Anti-theft device have the function of vehicle's searching, anti-theft alarm and motor locking.