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Stafl Systems
Vehicle Control Units

Integrating different systems into a central processing environment that provides reliable vehicle operation.

We bring our experience working on the most extreme vehicles, serving as the electrical systems integration contractor, to develop vehicle control systems that are ruggedized and meet the most important engineering specifications: yours. Our engineers can work with vehicle development teams on all aspects of electrical system integration and development to help your team reach your goals.

 
 
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STREAMLINED COORDINATION

A Stafl Systems Vehicle Control Unit is responsible for integrating different systems into a central processing environment that can provide reliable operation.

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INPUTS

(Digital + Analog)

  • Buttons
  • Foot Pedals
  • Sensors
  • CAN Devices
  • VEHICLE CONTROL UNIT

    OUTPUTS

    none

  • LEDs
  • Relays
  • Displays
  • CAN Devices
  • COUNTLESS APPLICATIONS

     
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    PRECISE ENGINEERING


    Features

    • 60 Pin Ruggedized Embedded Control Module

    • Fully Programmable with User Application Code

    • 32-bit ARM M4F Microprocessor

      • Up to 80 MHz Clock

      • Hardware Floating Point Unit

      • 256 kB of Flash

      • 32 kB of RAM

    • 12 Digital Inputs

    • 6 Analog Inputs (12-bit resolution)

      • 4 5V Full Scale Range

      • 2 30V Full Scale Range

    • 5 Thermistor Inputs

    • 14 Low Side Relay Driver Outputs

    • 8 High Side Driver Outputs

    • 2 CAN 2.0B Communication Interfaces

    • Off-processor Real Time Clock with Power Backup

    • 2 MB of Additional Off-processor Flash

    • Internal MicroSD Card Option

    • PWM Generation Capability

    • Quadrature Encoder Input Capability

    • Internally Generated 5V Power Outputs for External Sensors and Devices

    • Suitable for 12V or 24V Nominal Systems

    • ESD and Voltage Rail Surge Protection

    • IP67 Rated Enclosure


    Typical System Diagram

     
     
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    VCU PRODUCT CATALOG

    The Stafl Systems Vehicle Control Unit is available in both common and miniature form factors.

     

    VCU1200 (60-Pin Unit)

    Integrated precharge and main contactor control circuit

    Communication with Vehicle Control Unit (VCU) via standard CAN Bus Interface, with multiple supported baud rates

    Standard output messages include cell voltages/temperatures, pack voltage/current, and fault flags

    Runs internal balancing or commands received from VCU

    May be installed externally in appropriately sealed enclosure

     

    VCU1220 (48-Pin Unit)

    Ability to monitor and balance up to 12 series cells

    Allows system to be configured for packs with 12-256 series cells

    Yields excellent measurement accuracy across common pack conditions

    May be installed externally in appropriately sealed enclosure