DC-DC Converters
DC-DC converter changes DC power from an on-board 200-800V high voltage battery into lower DC voltages (48V / 24V / 12V) to power headlights, interior lights, wipers, window motors, fans, pumps and many other systems within Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV).
Benefits
Automotive Safety Integration Level – ASIL B
Efficiency > 92%
Optimum Power Density
Can 2.0 for Communication and Diagnostics
Lightest in its category
Application
Performance
Nominal Output Voltage
27.8 V
Constant Power
4 kW
Peak Power Output
4.5 kW
Minimum Input DC link Voltage
650V DC
Maximum Input DC link Voltage
800V DC
Weight
< 10 kg
Vehicle
Control Unit
The vehicle control unit (VCU) is the core system and runs software that controls the vehicle’s functions. It interfaces to all the sub-systems required to charge the vehicle, store energy, create energy, drive the powertrain and manage the flow of energy, and integrate with vehicle operational systems. Its function is to monitor and control the vehicle during charging, wake up, operation and shut down of the vehicle
Application
Ignition Switch
Accelerator Pedal
Brake Pedal
Directional Control (DNRP)
Brake Compressor Control
Control Battery
Body Control System/ Lamp and Wiper
EPAS Control
PDU Control
Hand Brake
Brake Lights
VCU Context – Communication with other subsystems in the Vehicle
BMS
OBC / Charger
TM Controller
Display
Diagnostic Port
ABS System
ESC System
Switches as digital inputs such as Regnen OFF, Crash Switch, CAB Tilt,
Door Lock etc
Motor Controller
Traction motor controllers are designed to convert DC current from the Traction battery into 3-phase alternating current and control the Performance of traction motor based on requirement to meet desired speed, torque, power, regeneration & safe driving of the vehicle.
Benefits
Electrical protection of the motor and subsequently the mechanics
Dynamic Response to Changing System Demands
Monitoring to Evaluate Machine Performance / Diagnostics
Accurate Speed Control
Application
Performance
Hardware Features
Software Features
HardwarePeak Power up-to 9 kW
SoftwareField Oriented Control (FOC) Algorithm
HardwareEfficiency > 97%
SoftwareDrive modes – Eco & Sport
HardwareUse of MOSFETs for efficient switching action
SoftwareProtection against Under voltage, Overvoltage, Overcurrent, Temperature
Hardware48V DC
SoftwareUDS (ISO-14229) for Diagnostics