An electric motor vehicle auxiliary unit includes a housing which is at least partly electrically conductive. An electric drive motor having stator-side motor coils, a unit mechanism which is driven by the electric drive motor, and a motor electronics circuit board are each arranged within the housing. The motor electronics circuit board includes motor electronics having control and power electronics which control the electric drive motor, and at least one housing ground connection which is electrically conductively connected directly to the housing via a housing ground element. A punch comb arrangement has at least two plug pins. A plug connection connects the motor electronics circuit board to an engine control unit. The plug connection is electrically connected to the motor electronics circuit board via the punch comb arrangement. The housing ground element is designed as a plug pin of the at least two plug pins of the punch comb arrangement.

An electromechanical drive arrangement for a motor vehicle includes an electromechanical main drive motor, a reduction transmission device which comprises a transmission input, a transmission output, at least one reduction stage and a transmission housing which accommodates the reduction stage, an axial differential transmission for splitting the drive power, which is guided by means of the reduction stage, between a first and a second wheel drive train section, and an auxiliary assembly which can be driven by the main drive motor by means of the reduction stage. The auxiliary assembly is arranged outside the transmission housing. A switching element is provided in the transmission housing such that the drive connection from the reduction stage to the axial differential transmission can be closed in a switchable manner and can be disconnected in a switchable manner.

An electromechanical drive arrangement for a motor vehicle includes an electromechanical main drive motor, a reduction transmission device which comprises a transmission input, a transmission output, at least one reduction stage and a transmission housing which accommodates the reduction stage, an axial differential transmission for splitting the drive power, which is guided by means of the reduction stage, between a first and a second wheel drive train section, and an auxiliary assembly which can be driven by the main drive motor by means of the reduction stage. The auxiliary assembly is arranged outside the transmission housing. A switching element is provided in the transmission housing such that the drive connection from the reduction stage to the axial differential transmission can be closed in a switchable manner and can be disconnected in a switchable manner.

Methods and systems are provided for engaging and disengaging an electromagnetic clutch of a two-speed accessory drive of an engine of a vehicle. In one example, a method comprises, responsive to an electrical demand being higher than a threshold electrical demand, operating an electric machine of the vehicle in a motor mode to reduce a speed of a grounding gear of a planetary gear set of a two-speed accessory drive (TSAD) of the vehicle; and engaging an electromagnetic clutch responsive to the speed of the grounding gear reaching a clutch engagement threshold speed.

An engine crank pulley structure disposed at a vehicle front side of a longitudinal engine includes: a front pulley that transmits crank rotational force to the water pump via a belt; a rear pulley that is disposed at a vehicle rear side of the front pulley and transmits a crank rotational force to a compressor via a belt; and a connecting portion that connects the front pulley and the rear pulley, the connecting portion crushing and deforming in a vehicle front-rear direction as a collision load toward the vehicle rear side is applied to it. An outer diameter of the front pulley is smaller than an inner diameter of the rear pulley.

A zero-emission configurable medium/heavy duty class electric truck is disclosed that uses high-voltage, battery-powered electrical energy for both motive power and auxiliary powered unit power. In embodiments, the electric truck includes a central frame having a pair of main frame rails configured to support at least two battery modules, a front subframe configured to support a front axle assembly and a cab, and a rear subframe configured to support at least one rear axle assembly and a rear payload module selected from one of the set of multiple configurable rear payload modules. In embodiments, at least one of the front axle assembly and the rear axle assembly include an electric motive motor powered by a battery management system configured to manage generation and distribution of alternating-current (AC) electrical power from the at least two battery modules to the at least one electric motive motor to provide motive power to the zero-emission configurable electric truck and to at least one auxiliary power unit (APU) to provide auxiliary power to the rear payload module.

A refuse vehicle including a chassis, a body assembly coupled to the chassis, the body assembly defining a refuse compartment, an electric energy system, an auxiliary power system comprising a reservoir to hold a hydraulic fluid, and a hydraulic pump powered by an electric motor, wherein the electric motor is powered by the electric energy system and the hydraulic pump pressurizes the hydraulic fluid to power one or more actuators, and wherein a prime mover of the refuse vehicle charges the electric energy system. The one or more actuators include a packer actuator configured to compact refuse in the refuse compartment

An energy storage vehicle includes a solar cell, a power storage equipment, an engine, a transmission module, an electric motor, a pump, a hydraulic motor, a remote control module, and a generator. The transmission module includes an input terminal, a first output terminal, a first clutch, a second output terminal, and a second clutch. The input terminal of the transmission module is driven by the engine. The power storage equipment is configured to store the electrical energy generated by the solar cell and the generator. The power storage equipment is electrically connected to the first electric motor. The hydraulic motor drives multiple wheels of the energy storage vehicle under the control of the remote control module. The remote control module is configured to control the power output of the hydraulic motor and the orientation of the wheels of the energy storage vehicle.

A vehicle includes an auxiliary battery configured to power an electrical accessory, a traction battery configured to provide power to propel the vehicle, a winch including a motor and cable, and a controller configured to, responsive to a requested torque of the motor being less than a threshold, initiate transfer of power to the motor from the auxiliary battery, and initiate transfer of power to the motor from the traction battery otherwise.

A control device for regulating a volume flow of a fluid in a drive train of a motor vehicle includes a torque monitoring unit, set up to determine, on the basis of a characteristic diagram of the pump which describes a functional dependency of the torque to be applied by the drive motor on the rotational speed of the drive motor for a predetermined fluid state of the fluid, a current torque deviation occurring between the current torque and the torque given by the characteristic diagram for the current rotational speed, and a correction unit, set up to correct a power setting signal for the drive motor in accordance with the current torque deviation and to provide a corrected power setting signal, and a power regulation unit, set up to generate a second power setting signal for actuating the drive motor on the basis of the corrected power setting signal.