AEM VCU200 Programmable Electric Vehicle Control Unit
AEM EV's VCU200 is built on OEM hardware and features OEM quality strategies. Combined, these provide the highest level of reliability, and more importantly, safety for both the programmer and end-user.
The VCU200 in default configuration can manage a single inverter/motor system, communicate with four independent CAN bus networks, and it can be used on direct-drive and indirect-drive EV setups. Multiple motor control systems may be possible depending on the application.
Primary functions of the AEM VCU200 include:
- Input characterization including accelerator pedal, brake switch, PRND switches and other driver/vehicle inputs
- Redundancy and arbitration features for all safety-critical inputs
- Startup and shutdown sequencing of high voltage components, including independent contactor control
- CAN message translation for BMS, inverter, PDUs, and other CAN accessories
- Motor torque management dependent on vehicle operating states and other driver-selectable modes
- Closed-loop motor speed regulation for indirect drive transmission applications
- Dynamic torque limits that maximize safety and optimize performance
- Accessory control of cooling pumps, cooling fans, lights and more
- Diagnostics and fault detection including CAN message timeouts, thermal limits, contactor, and inverter enable cross-checks
Features
The AEM EV VCU200 features a waterproof aluminum enclosure (IP67K, -40C - 105C) and has an 80 pin connector. It is built on OEM hardware with OEM control strategies and uses proprietary AEMcal software for programming.
The VCU200 can control one electric motor/inverter and link 4 independent controller area networks (CAN bus). A general set of hardware features is shown below.
INPUTS:
- 13 Analog inputs
- 15 Digital Inputs
- 4 Frequency inputs
OUTPUTS:
- 12 Low-side drivers
- 6 High-side drivers
- 4 Half Bridges with shunt resistors which provide - 4 low side drivers (PWM) or 4 High Side Drivers