Propulsion - Evaira Mako-VLV System
Typical high performance electric propulsion systems operating anywhere from 250 to 400 VDC or higher. This presents various issues to vehicle manufacturers who must assemble and maintain systems operating at dangerously high voltages. In addition, the existence of high voltages in the vehicle presents a very real danger to the occupants and to first responders. Evaira’s Mako-VLV (very low voltage) high performance traction system operates at much lower voltages, significantly improving safety across the board. It does this without sacrificing performance, achieving highway level torque and power. Low voltage propulsion has the added benefit of reduced cost, both in the traction system itself and also in the energy storage system.
Lower cost is realized through cheaper switching electronics in the controller, charger, and lower series count battery pack requiring fewer balancing circuits. The Mako-VLV motor is compact, only 9.5” in diameter, providing more installation options. The system is also scalable to meet almost any application; from economy vehicle to mid-size sedan to high performance luxury or sports car. This is accomplished through the controller’s ability to operating in a master-slave configuration. In this configuration, two or more motor/controller systems operate in concert to increase vehicle torque and power. Motors can be attached to a common shaft or configured to drive multiple wheels independently.
Features:
72 to 114 VDC operating
120 Nm peak torque
64 kW peak, 40 kW continuous motor power
64 kW peak, 34 kW continuous generator power
Flux vector control with PWM drive
Full regenerative braking support
Scalable multi-motor synchronized control
Temperature sensing with automatic throttle reduction
Multiple, configurable driving profiles (economy, performance, etc.)
Contactor outputs (x3), digital inputs (x8), analog inputs (x2)
Hardware and software failsafe/watchdog operation
IP66 compliant sealed construction
CANbus 2.0b diagnostic and vehicle interface
Autocheck system diagnostics
In-system firmware upgrade feature
Mako-VLV DataBrief
