More Power From Tesla EV Conversions

Hawthorne, California-based AEM EV will soon debut an EV conversion control system that increases horsepower when using Tesla’s Large Drive Unit (LDU) base drive.


AEM EV’s system, jointly developed with Cascadia Motion, a leader in EV propulsion, combined with the company’s VCU200 vehicle control unit, provides OE-level safety, vehicle control, and increased HP.


Together, AEM EV’s LDU Inverter Control Board and VCU200 eliminate control uncertainty and limitations. AEM EV’s integration delivers more power and full control through a system that’s been thoroughly validated. Increasing the Tesla LDU base drive’s HP by 26 percent over the baseline as measured on a chassis dynamometer, further increases in output power are possible prior to the system’s release in mid-Q1 of this year. Tesla LDU performance drive motor validation will occur sometime after the release date.


Tesla’s OEM board is replaced with the Inverter Control Board in the LDU inverter, which connects to the VCU200 via CAN bus. Included with the ICU is an adapter harness with near plug and play connectivity, with the exception of 12-volt power and ground connections. The VCU200 and LDU inverter control board are designed for EV conversions only, and will not operate Tesla vehicles equipped with a factory LDU.


To realize the power gains, and to use the additional controls and safety features the LDU inverter control board and the VCU200 for the Tesla LDU provides, they must be utilized in tandem. Some of the features include motor torque management, dynamic torque limits for traction and launch control, accelerator pedal, brake switch, PRND switches, and other driver or vehicle inputs. In addition, cooling pumps, fans, lights, safety-critical inputs, high-voltage startup and shutdown sequencing, CAN message translation, diagnostics, and thermal limitations are among the board’s functions. More information on the latest Tesla Model S can be found on an earlier post.


Software developed in-house for AEM EV VCUs simplifies power delivery and control of all the ancillary subsystems of EV conversion vehicles and motorsports applications. If you’re ready to go green with your classic muscle car, hot rod, or pickup truck, AEM EV can help you make the EV conversion as painless as possible. For more information, go to

[Images: Tesla, AEM EV]

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