OVERVIEW

Introducing Nx3

The Nx3 is an OpenECU™ supervisory and gearbox control platform designed for light, commercial, and off-highway vehicles. It is suited for prototype through production applications, offering highly customizable I/O, flexible application software development using OpenECU MATLAB Simulink or C-code, and model-based control strategies to accelerate startup and integration.

The Nx3 supports advanced vehicle control applications including VCU, EVCC, ICE, EV, and hybrid supervisory control. It is developed according to ISO 21434 with integrated HSM support for cybersecurity requirements and is equipped to meet ISO 26262 up to ASIL-D functional safety requirements.

OpenECU Nx3

Features

  • Powerful Infineon Aurix microcontroller
  • 80 pins with diverse I/O capabilities
  • Highly customizable I/O
  • Flexible software development using OpenECU MATLAB Simulink or C-code
  • Model-based control strategies available as software libraries
  • Developed according to ISO 21434 with integrated HSM support
  • Equipped to meet ISO 26262 up to ASIL-D functional safety requirements
  • Comprehensive diagnostics to support functional safety and OBD requirements
  • Integrated EVCC functionality for xEV charging
  • CCS and Megawatt Charging capabilities
  • CAN-FD capable CAN communications, LIN, SENT, and Ethernet support
  • Flexible wake capabilities including ignition, CAN, charge plug insertion, and timer
  • Over-the-Air flashing memory swap capability from a parent module
  • Supports ICE, EV, and hybrid supervisory control capabilities

Core Offering

  • VCU + EVCC: Vehicle Control Unit + Charging
  • Charging: CCS and Megawatt Charging capabilities
  • Cybersecurity: Integrated HSM and development according to ISO 21434
  • Functional Safety: Capable of ASIL-D per ISO 26262
  • Communications: CAN, CAN-FD capable, LIN, SENT, and Ethernet
  • Sensing: Current monitoring, speed sensors, and analog I/O
  • Commands: H-bridge switching, high-side drivers, and low-side drivers
  • Diagnostics: Comprehensive fault diagnostics with OBDII and J1939 compliance

Off the Shelf Options

  • VCU – Vehicle Control Unit: Cost-effective vehicle supervisory control unit for ICE, EV, and hybrid applications.
  • EVCC – Electric Vehicle Charge Controller: Supports CCS and Megawatt Charging applications including CP, PP, PLC communication, MCS insertion detection, charge enable, and Ethernet communication.

Hardware Specifications

Capabilities
Feature Core: VCU + EVCC Option 1: VCU Option 2: EVCC
Operating Voltage 24V 24V 24V
CAN Communications 4 5 2
LIN Communications 2 2 1 Master or Slave
SENT Input 2 2 –
Speed Sensor Inputs 6 6 –
Analog/Digital Inputs 10 12 14
Temperature Sensor Inputs 4 4 4
Low Side Outputs 13 13 2
High Side Outputs 9 9 7
LED Outputs 2 3 3
Speedometer Outputs 1 – –
H-bridge Outputs 4, with load current feedback 4, no load current feedback 2, no load current feedback
Ignition Included Included Included
CCS Charging Interface Included – Included
MCS Charging Interface Included – Included
Over-the-Air Capability Included Included Included
Cybersecurity Included Included Included

APPLICATIONS

Nx3 Applications Include:

Application Description
Megawatt + CCS Combined Charging Control Single-controller solution to manage both Megawatt Charging System and CCS inlets on commercial EV platforms, simplifying the overall vehicle architecture.
Megawatt Charging Control Standalone controller to manage Megawatt Charging System functionality, including communication with charging infrastructure and the vehicle BMS.
Vehicle Supervisory Control Full powertrain, gearbox, and auxiliary management for ICE, EV, or hybrid commercial and off-highway vehicles.
On Vehicle Charge Management Manage both Megawatt Charging System and CCS inlets on a single commercial EV platform, coordinating with BMS and simplifying wiring.

MODULE COMPARISON

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Primary ProcessorSPC5534SPC5746BMPC5534MPC5674FMPC5746BSPC5746SPC5746Infineon Aurix
Primary Clock Rate80MHz80MHz80MHz264MHz160MHz160MHz160MHz
Primary Code Space512KB3MB512KB3MB2302KB3MB3MB
Primary RAM Space64KB256kB64KB128kB384KB256KB256KB
Primary Calibration Space256KB256kB256KB128kB128KB256KB256KB
Secondary ProcessorSPC560P34SPC560P34SPC560P34
Secondary Clock Rate64MHz64MHz64MHz
Secondary Flash Space192KB192KB192KB
Secondary Calibration Space20KB
Secondary RAM Space12KB12KB
Operating Voltage9V to 32V8V to 32V12V or 24V8V to 18V8V to 18V8V to 18V8V to 32V
Sensor Supply1x 5V @250mA1x2x 5V@250mA4x 250mA @ 5Vnone2x 5V @200mA2x 5V @200mA
Standby Current
Actuator Supplies1x 20A2x 10A @ Vbatt
Output ProtectionShort to Battery, Ground
Battery Input ProtectionOvervoltage, Reverse Voltage
Survive Voltage-28V to 36V
High Speed CAN 2.02x4x2x4x1x4x4xUp to 6x CAN-FD
LIN (master)22xUp to 2x LIN
Inputs (Analog or Digital)10x6x18x (Digital: 6x; Analog: 12x)40x (Digital: 5x switched, 3x Frequency, PWM; Analog: 32)4x40x (Digital: 9x switched, 3x PWM; Analog: 28)44x (Digital: 9x switched, 3x PWM; Analog: 32)Up to 18x
Reprogramming Enable (FEPS)1x @ -18V1x @ -18V1x @ -18V4x
Differential VRS
Single Ended VRS
Frequency
Cam Shaft4x Hall only
Crank Shaft1x Hall (VR option)
RTD Sensor7x4x
Knock SensorKnock Sensor
Lamda Sensor (UEGO)2x
Lamda Sensor (HEGO)4x (only 2x available when using 2x UEGO)
Ignition Sense1x1x1xIncluded
Low Current Low Side DrivesUp to 1x 20mA & 2x 100mA & 6x 500mAUp to 6x 500mA LSD12x 100mA, 3x 400mA, 14x 700mA, 2x 1A11x 100mA, 4x 400mA, 14x 700mA, 2x 1A2x 1A, 7x 2A PWM, 4x 4A PWM
Medium Current Low Side DrivesUp to 4x 2AUp to 4x 2A LSD
High Current Low Side Drives4x 2.2A, 1x 3.2A4x 2.2A, 1x 3.2A
0-5 V Analog OutputUp to 2x 10mAUp to 2x 10mA
PWM Low Side
H-Bridge2x 8A1x 5A full-bridge & 2x 10A full-bridge or 4x 10A half-bridge2x 50A peak or 10A 1x 10A, 2x 5A, 1x 3.2A1x 10A, 2x 5A, 1x 3.2AUp to 4x
High Side Switch1x Hall (VR option)4x 1A, 5x 4A PWM
Low Side Injector3x 5A peak/ 2A hold8x software-programmable waveform peak-and-hold: nominal 25A peak, 15A hold
Current Monitors2xSupported
Voltage Monitors2x
High Side Logic Outputs2x 1mA2x 1mA
High Side Outputs4x 700mA4x 700mA4x 1A, 5x 4A PWM
Low Side General Purpose, PWM (SM, VM, CTM)1x 10A, 1x 2A, 1x 500mA9x 0.2/0.5A lamp & relay, with monitoring of state, voltage, and fault status
Low-side General Purpose, Spark (SM)1x 8A8x (Smart Coil only) with monitoring of state; on-off mode for non-spark uses
High-side Injector sources2x Injector High-Side outputs with programmable boost voltage phase, 25A peak
Low side GP (General Purpose) (VM, CTM)1x 8A, 2x 6A peak / 4A hold, with voltage and current-tripped monitoring
High-side GP (General Purpose) (CM)2x 8A up to 85°C, intended for source to low-side outputs, with current monitoring
Constant-Current (with inductive actuator)8x 2A
VibrationISO 16750-3ISO 16750-3Ford IIIB - SevereISO 16750-3IEC 60068-2-64ISO 16750 chassis mountISO 16750 chassis mount
Environmental ProtectionIP67 - SealedIP67 – sealedIP67 Sealed/Gore ventIP69KIP69K & IPx8 Sealed/Gore ventIP69K Sealed/Gore VentIP69K Sealed/Gore Vent
ESD±8kV - SAE J1113-13SAE J1113-13
Conducted and Radiated EmissionsCISPR25 Class 2CISPR25 Class 2
Conducted TransientsISO 7637-2ISO 7637-2
Bulk Current Injection ImmunityISO 11452-4ISO 11452-4
MaterialPlastic (PPA GF33)PPA GF33AluminumAluminumAluminumAluminumAluminum
Dimension in mm (W x H x D)138 x 130 x 42138 x 130 x 42 mm (L x W x H)228 x 158 x 50266 x 299 x 56.5207 x 104 x 45225 x 205 x 45225 x 205 x 45
Weight 1.02 kg2.5 kg540g1.1 kg1.1 kg
Connectors2 x 20 pin (Molex MX-150)2 x 20 pin (Molex MX-150)46 pinMolex CMC 154-pin, 3-pocket1x 23 TE (AMSEAL)Molex 112pin (1x 48, 2x 32)Molex 112pin (1x 48, 2x 32)80 pins
LocationChassis mountEngine Compartment/ ChassisEngine Compartment / ChassisPassenger CompartmentChassis/Passenger CompartmentChassis/Passenger CompartmentLight, commercial, and off-highway vehicles
Operating TemperatureISO 16750-4 (-40°C to 85°C)-40°C to 85°C-40°C to 85°C-40°C to 85°C-40°C to 85°C-40°C to 85°C-40°C to 85°C
Program Status LED drive1x
Reprogramming Enable In1x @18V