Inverters are power electronics products with the dual task of
power the engines
check the engines
The power supply is managed by the power electronics, which draws direct current from the traction battery and transforms it into three-phase alternating current with which it drives the motors . Power electronics produce heat that must be dissipated, which is why many inverters have an aluminum base that can be used for active and passive cooling.
The power supply of the motors is managed by the inverter through proportional signals, such as a pedal, a lever or acquisitions from other devices. For this purpose, the inverters are equipped with at least one signal connector which is used to acquire commands (on-off or proportional), communicate via CAN with other components of the powertrain, obtain information from the motor (typically encoders for the position of the rotor and probes of temperature). The inverter also has the ability to control its contactor, allowing the power circuit to be closed when the acquired and controlled parameters are in order (within the expected values) or the circuit to be opened when critical parameters are found.
Parameter settings are normally done through a consoleor through software and PC.
Inverter and motor must be characterized together in order to function correctly and to be able to use all the functions of the internal software. A file must therefore be available for each motor, generally called "Motor Type" relating to the selected motor.
e-Powertrain.guru offers in its kits the inverters with the correct motor type file pre-installed.
