A vehicle including a housing supported on a framework member of the vehicle via a supporting member, a liquid medium supply unit fixed to the housing and driven by a motor to supply a liquid medium to a cooled or lubricated portion, and a first atmosphere communicating mechanism that establishes a communication between an inside of a motor portion of the liquid medium supply unit and atmosphere, the first atmosphere communicating mechanism including a volumetric member that is disposed apart from the liquid medium supply unit in a position higher than the liquid medium supply unit, that has a predetermined volumetric space, and that is fixed to the housing.

Mobile devices emit signals in Bluetooth, Wi-Fi and cellular (i.e. 2G, 3G, 4G, Edge, H+, etc.). These signals attempt to connect to paired devices, hotspots, cell towers, or other suitable wireless connection points to greater networks. In order to connect to connect to hotspots mobile devices send out identifying data to establish a connection. Hotspots may unobtrusively collect the identification data of the mobile device, and then reject the connection request. The hotspots collect data in real time on the mobile device, and by association, the human carrying the mobile device without having alerted or impeded the human carrier. The system uses analytical software to determine, for example, an approaching unique ID user's presence, history, frequency of visits, duration of presence and so on.

This invention relates to the lubrication of a wheel support 10. The wheel support 10 comprises support 10 comprises a housing 12 that includes a base portion 14 defining a cavity 16 for receiving therein at least one gear 40, and lubricant for lubricating the gear 40. Opposing first and second arm members 18.1, 18.2 extend respectively from the base portion 14. A free end of each arm member 18.1, 18.2 includes a bearing receiving formation 20.1, 20.2 for receiving therein a bearing. The wheel support 10 further comprises internal lubricant feed means 22, defined in the housing 12, and that extends internally from the base portion 14 into at least one of the arm members 18.1 or 18.2 for feeding lubricant operatively received from a lubricant supply, internally, via the base portion 14, to the bearing receiving formation 20.1 or 20.2 associated with the at least one arm member 18.1 or 18.2.

An electrical machine, in particular for driving a motor vehicle, including a cooling and/or lubricating system having a wet chamber for accommodating a cooling and/or lubricating medium. A stator and/or a rotor of the electrical machine is at least partially arranged in the wet chamber and/or delimits it, and the electrical machine includes at least one stator-side transmission component and at least one rotor-side transmission component, which form an electrical sliding contact. At least one of the transmission components is at least partially arranged in the wet chamber and/or delimits

A vehicle drive device includes an electric motor disposed in a wheel, a planetary gear mechanism, and a hub. The electric motor is configured to generate a drive force which drives the wheel. The drive force of the electric motor is transmitted to the planetary gear mechanism. The hub transmits a drive force of the planetary gear mechanism to the wheel. The planetary gear mechanism includes a pinion gear having a first pinion and a second pinion coaxial with the first pinion and having a smaller diameter than the first pinion, a fixed ring gear which engages with the first pinion, and a drive ring gear which engages with the second pinion and transmits a drive force to the hub. The first pinion is disposed at a position away from an end portion of the stator core in a direction in which a rotation center axis of the wheel extends.

An electric drive can comprise a housing assembly; an electric machine with a hollow shaft; a planetary gearing; and a power distribution unit having an input part and two output parts, the input part being connected to the planet carrier, one of the output parts being connected to an intermediate shaft extending through the hollow shaft; wherein the housing assembly comprises a motor-sided first housing part, a gearing-sided second housing part, and an intermediate housing part disposed therebetween, wherein the intermediate housing part includes, integrally formed, an intermediate wall, a motor-side jacket portion and a gearing-side jacket portion, wherein a sealed cavity for a coolant flowing therethrough is formed between an outer face of the motor-side jacket portion and the inner face of the first gearing part.

An electric drive unit for a motor vehicle includes an electrical machine having a stator and a rotor. An inverter having a first switch unit energizes a first phase system (U, V, W) of the stator. A transmission is connected to the rotor for torque transmission. A lubricant circuit lubricates the transmission and/or cools the rotor. A first cooling circuit cools the first switch unit. A lubricant-coolant heat exchanger thermally couples the first coolant circuit and the lubricant circuit. A control device provides a dissipation-increasing operating mode for the first switch unit in order to increase a dissipation heating a coolant of the first coolant circuit. The lubricant-coolant heat exchanger transfers heat from the heated coolant to the lubricant circuit in order to reduce a viscosity of a lubricant.

A lubricant supported electric motor includes a stator presenting an stator raceway, and a rotor movable relative to the stator and presenting a rotor raceway disposed in spaced relationship with the stator raceway to define a gap therebetween. A lubricant is disposed in the gap for supporting the rotor relative to the stator. The stator defines at least one hydrostatic support chamber disposed in radially recessed relationship relative to the stator raceway and in fluid communication with the gap. The stator also defines a passageway disposed in fluid communication with the at least one hydrostatic support chamber for providing lubricant to the at least one hydrostatic support chamber and the gap. A flow restriction mechanism is disposed in fluid communication with the passageway for controlling and balancing a supply and pressure of the lubricant in the hydrostatic support chamber.

An electric drive for may have at least one electric machine in a housing with a rotor shaft forming the drive shaft, which can be coupled to an intermediate shaft via at least one spur gear, wherein the intermediate shaft is coupled to an output differential for driving output shafts, wherein there is at least one oil pump for pumping transmission fluid, wherein a pump shaft in the oil pump can be driven in the same direction of rotation via a first drive path, which has at least one first freewheel, and via a second drive path, which has at least one second freewheel and at least one differential, and wherein at least the first freewheel and the second freewheel, as well as the differential, are located radially inside the hollow intermediate shaft.

A control device for a motor unit provided in a vehicle is disclosed. The motor unit includes a motor including multiple coils provided side by side around a motor axis; a transmission mechanism transmitting power of the motor to an axle; a housing housing the motor and the transmission mechanism; an electric oil pump delivering oil stored in the housing; and a coil temperature sensor detecting a temperature of the coil. The control device includes a motor controller driving and controlling the motor; and a pump controller driving and controlling the electric oil pump. The pump controller estimates an oil temperature according to an ambient temperature and the temperature of the coil, and determines a start timing of the electric oil pump based on an estimated oil temperature.