MotorTransformer device functioning as a Motor or an Isolation Transformer, and Integrated Powertrain System (IPS) for Electric Vehicle (EV). IPS includes a Matrix Converter to bidirectionally convert grid low frequencies (50/60 Hz) into MotorTransformer high frequency (several kHz), enabling MotorTransformer operation at the same frequency and power, in both functionalities, utilizing the same conducting and magnetic materials. IPS operates in two modes: Driving and Vehicle to Grid (V2G). Driving mode: IPS propels the EV with regenerative braking, with the MotorTransformer field coils connected like a poly-phase Motor with rotating magnetic field. V2G mode: ISP fast charges and discharges the EV Battery directly from/to the grid. The MotorTransformer, as a poly-phase Isolation Transformer, comprises primary and secondary windings formed by field coil sets electrically isolated, and coupled with an alternating magnetic field. Controlling a variable reluctance rotor position enables maximum peak power tracking, in both functionalities, with low harmonic distortion.

A vehicle, in particular a two-wheeler or three-wheeler. The vehicle includes at least one electric motor which is provided for decelerating the vehicle and/or at least one vehicle wheel of the vehicle during a braking operation, and at least one vehicle battery which is functionally coupled to the electric motor. The vehicle has a braking chopper unit which is operatively connected to the electric motor and the vehicle battery, has at least one braking resistor, and is provided for dissipating excess energy generated by the electric motor during the braking operation.

A vehicle, in particular a two-wheeler or three-wheeler. The vehicle includes at least one electric motor which is provided for decelerating the vehicle and/or at least one vehicle wheel of the vehicle during a braking operation, and at least one vehicle battery which is functionally coupled to the electric motor. The vehicle has a braking chopper unit which is operatively connected to the electric motor and the vehicle battery, has at least one braking resistor, and is provided for dissipating excess energy generated by the electric motor during the braking operation.

A dump truck includes: a vehicle body frame extending in a travel direction; cooled objects in a form of an engine and an aftercooler; a first radiator and a second radiator configured to exchange heat between a cooling air and a cooling water after cooling the engine and the aftercooler, in which the first radiator is disposed to an outside of a first of the vehicle body frame in a vehicle width direction and the second radiator is disposed to an outside of a second side of the vehicle body frame in the vehicle width direction.

Provided herein is a system usable with an electric drive machine. The system includes: a resistor grid electrically coupled to a motor of an electric drive machine; a fan coupled to the resistor grid, the fan operable in two or more operation modes; a control circuit comprising one or more processors and memory structured to store instructions that, when executed by the one or more processors, cause the control circuit to: determine a cooling load for the resistor grid; determine a target fan speed according to the cooling load for the resistor grid and a selected operation mode from the two or more operation modes of the fan; and provide an output corresponding to the target fan speed to the fan.

Systems, apparatuses, and methods for a modular resistor grid system include a mount and a plurality of modular resistor grid assemblies that interchangeably couple to the mount. At least two modular resistor grid assemblies are in the plurality. Each has a housing and a plurality of resistor plates. Each housing has input and output terminals. Each plurality of resistor plates is connected between the input and the output terminal of a housing. Each resistor plate has a thickness, and each plurality of resistor plates provides a target electrical resistance for a modular resistor grid assembly. A first modular resistor grid assembly has a first number of resistor plates with a first thickness. A second modular resistor grid assembly has a second number of resistor plates with a second thickness. The first number of resistor plates is greater than the second number. The first thickness is greater than the second thickness.

Provided herein is a system including a resistor grid comprising a plurality of resistor elements, the resistor grid electrically coupled to a motor of an electric drive machine; a temperature sensor arranged to measure a temperature of at least one of the plurality of resistor elements; a control circuit comprising one or more processors and memory structured to store instructions that, when executed by the one or more processors, cause the control circuit to: determine a temperature of the least one resistor element, according to measurements from the temperature sensor; and determine a resistive braking capacity of the resistor grid within a power capacity differential, according to the determined temperature of the resistor element; and a display configured to render a graphical representation of the resistive braking capacity of the resistor grid relative to the power capacity differential.

Provided herein is a system including a resistor grid comprising a plurality of resistor elements, the resistor grid electrically coupled to a motor of an electric drive machine; a temperature sensor arranged to measure a temperature of at least one of the plurality of resistor elements; a control circuit comprising one or more processors and memory structured to store instructions that, when executed by the one or more processors, cause the control circuit to: determine a temperature of the least one resistor element, according to measurements from the temperature sensor; and determine a resistive braking capacity of the resistor grid within a power capacity differential, according to the determined temperature of the resistor element; and a display configured to render a graphical representation of the resistive braking capacity of the resistor grid relative to the power capacity differential.

A highly integrated high-power resistor comprising a high-power resistor integrated into a radiator, wherein the high-power resistor is designed to efficiently dissipate heat generated during sustained-action braking operations of an sustained-action brake, having a radiator housing, a stainless steel jacket, an insulating layer and at least a first electrical high-voltage connection and a second electrical high-voltage connection, wherein at least the high-power resistor, the stainless steel jacket and the insulating layer form a high-power resistor module.

A highly integrated high-power resistor comprising a high-power resistor integrated into a radiator, wherein the high-power resistor is designed to efficiently dissipate heat generated during sustained-action braking operations of an sustained-action brake, having a radiator housing, a stainless steel jacket, an insulating layer and at least a first electrical high-voltage connection and a second electrical high-voltage connection, wherein at least the high-power resistor, the stainless steel jacket and the insulating layer form a high-power resistor module.