AEM EV

Install a Tesla Model S or Model X "P" (P90D, P100D) Large Drive Unit (LDU) in any vehicle and achieve complete control with AEM EV's LDU Inverter Control Board (ICB, PN 30-8402) and VCU200 Vehicle Control Unit (PN 30-8000)! This system provides full control of the LDU for programming torque curves, torque limits, regenerative braking, accelerator pedal response, drive-mode switches, and much more. The Tesla LDU currently comes in two versions, Base and Sport.

AEM EV's Tesla Inverter Control Board acts as a VCU expansion device that replaces the stock Tesla ICB. Once connected to a VCU200 using the supplied communications harness, calibrators can program propulsion strategies and characterize inputs through the VCU using AEMcal software. AEM EV's LDU ICB was co-developed with Cascadia Motion, an industry leader in EV propulsion systems, to ensure the highest standards of quality and reliability.

NOTE: The Inverter Control Board must be used with a VCU200 Vehicle Control Unit for programming and controlling a Tesla LDU. This system is designed for conversion and motorsports vehicles with Tesla LDU swaps. It will not control a Tesla LDU in a Tesla OE chassis

The AEM Battery Management System (BMS-18) is comprised of three components:

1.    VCU
2.    BMS-18 Master
3.    BMS-18 Satellite(s)

The BMS is implemented as two different Module types: the BMS Master and the BMS Satellite. Each Module is capable of measuring up to 18 cells and 3 temperatures (thermistors) but the Master also contains the CAN communication interface and J1772 charging specific connections needed for each battery pack. 

The VCU communicates with the BMS via the Master Module and all battery packs need at least one Master unit. The Satellites expand the capability of the Master by an additional 18 cells and 3 thermistors per additional Satellite connected. The Satellite Modules are connected to their Master via a high-speed serial interface (isoSPI) that allows additional units to be daisy chained together, adding as many Satellites as necessary for the battery pack configuration.

The VCU is responsible for all BMS control logic.  All setup and calibration items can be modified using the AEMCal user interface.

The AEM Battery Management System (BMS-18) is comprised of three components:

1.    VCU
2.    BMS-18 Master
3.    BMS-18 Satellite(s)

The BMS is implemented as two different Module types: the BMS Master and the BMS Satellite. Each Module is capable of measuring up to 18 cells and 3 temperatures (thermistors) but the Master also contains the CAN communication interface and J1772 charging specific connections needed for each battery pack. 

The VCU communicates with the BMS via the Master Module and all battery packs need at least one Master unit. The Satellites expand the capability of the Master by an additional 18 cells and 3 thermistors per additional Satellite connected. The Satellite Modules are connected to their Master via a high-speed serial interface (isoSPI) that allows additional units to be daisy chained together, adding as many Satellites as necessary for the battery pack configuration.

The VCU is responsible for all BMS control logic.  All setup and calibration items can be modified using the AEMCal user interface.

8-Button CAN Keypad

EV programmable button pad for use with VCU200 or VCU300

The AEM EV 8-Button CAN Keypad (PN 30-8400) puts control at your fingertips in EV street-conversion and motorsports vehicles. It is a VCU expansion device that allows you to control vehicle functions by programming them in the VCU software, and then send these commands via CAN bus to a VCU200 or VCU300 Vehicle Control Unit. Functions like Ignition, Park, Reverse, Neutral and Drive, as well as two map switching functions like performance level and traction control, are all controlled from a central location through a sleek, vibrant interface.  The 8-Button CAN keypad has nine backlit colors that are all fully programmable using AEMcal software. The LEDs deliver a lively opening ceremony when powering up, which is user-programmable. Users can select backlighting for each individual button, or group of buttons, and have the backlighting for whatever mode is selected change color so you always know what drive mode, power mode, or traction mode you are in!  More than just aesthetics though, the backlighting is used to alert you to any potential issues and whether everything is functioning properly to keep you safe. For instance, when the Ignition switch is pressed three color states verify that everything is working correctly. When the contactors are open there is no backlight, and when the pre-charge process begins the backlight turns yellow. Once the pre-charge process is complete and the contactors close the backlight turns green to notify you that the vehicle is safe to operate, and if a fault is detected the backlight turns red.  The 8-Button CAN keypad has a ruggedized rubber enclosure with two mounting studs on the back, and in addition to color-changing backlighting, positive-feel buttons provide a tactile response that takes the guesswork out of whether or not you pressed the button hard enough.

The VCU200 supports direct-drive only, and the button functions are fixed. The top row of buttons control P, R, N, and D, and the bottom row buttons control ignition, performance level, auxiliary control for a dedicated 20 Amp PDU output, and traction control slip target (coming soon).  The same button functions are used on direct-drive applications when using the VCU300, however, AEM EV includes a different fixed configuration when using the VCU300 on indirect drive vehicles.  Can be mounted horizontal or vertical.