A method of controlling a drive axle system. The method may include executing a gear upshift or a gear downshift after decreasing the torque that is provided by an electric motor to a transmission of an axle assembly and increasing the torque that is provided by another electric motor to a transmission of another axle assembly.

An electromobility system for a vehicle comprising a primary sub-system including at least a first battery pack arrangement to power an electric machine for propelling the vehicle, a secondary sub-system being a high voltage sub-system and including at least a second battery pack arrangement to power an auxiliary equipment, and a DC/DC-converter galvanically separating the primary sub-system from the secondary sub-system. The system, in a first state, powers the electric machine by the first battery pack arrangement of the primary sub-system independently of the secondary sub-system, and powers the auxiliary equipment by the second battery pack arrangement in the secondary sub-system independently of the primary sub-system, and in a second state, powers the auxiliary equipment by the second battery pack arrangement of the secondary sub-system and, via the DC/DC-converter, the first battery pack arrangement of the primary sub-system.

A fuel storage system is provided for storing dimethylether (DME), a blend including DME, or other similar highly volatile fuel at a vehicle. The fuel storage system including a main storage tank, an expansion tank, a fuel filling receptacle configured to receive a fuel filling nozzle of a filling station, and a valve arrangement having at least a normal operating setting and a fuel filling setting. The valve arrangement in the normal operating setting provides a fuel passage between the main storage tank and the expansion tank, and the valve arrangement in the fuel filling setting both provides a fuel passage between the fuel filling receptacle and the main storage tank and prevents fuel flow between the main storage tank and the expansion tank. The fuel storage system is configured to mechanically prevent disconnection of the fuel filling nozzle from the fuel filling receptacle unless the valve arrangement is in the normal operating setting. A corresponding method, as well as a further example embodiment of the fuel storage system, are also provided.

A twin-wheel drive module for driving two vehicle wheels which are disposed spaced axially from one another and rotatable around two axes of rotation aligned with one another. For driving each vehicle wheel, provision is made for a traction motor having a motor shaft disposed in parallel to the axes of rotation, a transmission having an input shaft which is connected to the motor shaft of the traction motor and an output shaft in alignment with the axes of rotation, and a second transmission. The second transmission has an input shaft, which is connected to the output shaft of the first transmission, and an output shaft which rotates around a common axis of rotation with the input shaft configured to receive the vehicle wheel.

Methods and systems are provided for an electric axle assembly. In one example, a system, includes a cover plate for a head assembly, wherein a cross-member is integrated into the cover plate and configured to attach to a vehicle frame.

A through the road (TTR) hybridization strategy is proposed to facilitate introduction of hybrid electric vehicle technology in a significant portion of current and expected trucking fleets. In some cases, the technologies can be retrofitted onto an existing vehicle (e.g., a trailer, a tractor-trailer configuration, etc.). In some cases, the technologies can be built into new vehicles. In some cases, one vehicle may be built or retrofitted to operate in tandem with another and provide the hybridization benefits contemplated herein. By supplementing motive forces delivered through a primary drivetrain and fuel-fed engine with supplemental torque delivered at one or more electrically-powered drive axles, improvements in overall fuel efficiency and performance may be delivered, typically without significant redesign of existing components and systems that have been proven in the trucking industry.

An articulated vehicle having at least two vehicle parts which are connected to and articulated relative to each other is provided. The vehicle includes a front vehicle part and at least one rear vehicle part arranged behind the front vehicle part with respect to a longitudinal direction of the vehicle. The front vehicle part has a first drive unit including at least an electric motor and a first energy storage system; and at least one rear vehicle part has a drive unit including at least an electric motor and an energy storage system. Each rear vehicle part includes an individual electrical system that is galvanically isolated from the front vehicle part and from each other at least under normal driving conditions.

A modular electric axle head assembly for a vehicle. An axle assembly of the vehicle includes a banjo portion with a first opening extending from an inner surface to an outer surface of an inboard side of the banjo portion. At least a portion of a differential assembly disposed within at the banjo portion of the axle assembly and is drivingly connected to at least a portion of a gear assembly. The gear assembly is also drivingly connected to a motor output shaft. At least a portion of the gear assembly is disposed within a hollow portion of a gear assembly housing. An outboard portion of the gear assembly housing has a mounting flange that is integrally connected to the inboard side of the banjo portion. A first and second protruding portion extends from the axle assembly mounting flange and provides rotational support for the differential assembly.

A method for controlling a driving dynamics function of a working machine with at least two vehicle axles. A current actual wheel rotational speed of at least one wheel is detected and sent to a control unit for comparison with an acceptable wheel rotational speed of the same wheel and wheel slip is calculated from that comparison. The control unit emits a control signal to lock at least one differential gear system if the wheel slip has an unacceptable value. For the differential gear system (4, 5, 6, 7, 8) concerned, an unlocking control signal is periodically emitted and the wheel rotational speeds are compared afresh. A control signal to lock the differential gear system concerned is emitted again if the value of the wheel slip is still unacceptable, and a trajectory is detected with reference to detection elements, along which the value of the wheel slip of the at least one wheel has been unacceptable.

A system and method is provided for calibrating a portable vehicle sensor which is releasably mountable to a vehicle at least at a first and a second position on the vehicle, wherein the first and second positions are offset from each other. The system includes inputting means configured to receive position information relating to the second position when or after the portable vehicle sensor has been moved from the first position to the second position; calibration means configured to calibrate the position of the portable vehicle sensor with respect to the second position by use of the received position information.