An electric-motor-driven rigid axle for vehicles. The axle has a body with wheel carriers and points for attachment to a vehicle frame such that, in a cross-section, an upper end of the body faces the frame and a body axis forms a vertical axis extending toward the upper end and intersecting the wheel axis. The axle has electric motors and offset transmissions. The motors drive respective carriers. The transmissions are respectively interposed between the associated motor and carrier. The transmissions enable the shafts of the respective motors to be offset from the wheel axis. The transmissions are arranged such that, in the cross-sectional view, the motor shafts and the wheel axis form intersection points on an offset line which is at an angle of between 1 and 90 degrees to the vertical axis and the vertex is at an intersection point between the wheel axis and the offset line.

A hydrostatic transaxle includes: a casing; a hydraulic continuously variable transmission; and an oil filter that includes a filter body for filtering the hydraulic oil and a filter holding member configured to guide clean oil filtered in the filter body to a suction oil reservoir, in which the filter holding member includes a filter installation portion for installing the filter body, and a suction oil reservoir provided at a position different from the filter installation portion, and the filter installation portion and the suction oil reservoir are configured to be separable from each other and be couplable to each other to freely flow.

A cradle assembly for housing and supporting a motor and a gearbox of an electric axle assembly. The cradle assembly has generally an “open air” design which provides a space for a motor and/or gearbox to be positioned within a pre-assembled cradle assembly and allows for easy access to the motor and gearbox for maintenance. The cradle assembly includes two end caps, a plurality of tube portions connecting the end caps and a plurality of motor mounts for supporting the motor and gearbox.

Vehicles, powertrains for vehicles, and methods of mounting powertrains to chassis of vehicles are disclosed herein. A vehicle includes a chassis, a plurality of wheels, and a powertrain. The chassis extends along a longitudinal axis from a first end to a second end arranged opposite the first end. The plurality of wheels are coupled to the chassis between the first end and the second end and configured for rotation about a rotational axis. The powertrain is mounted to the chassis transverse to the longitudinal axis between the first end and the second end. The powertrain is configured to drive rotation of the plurality of wheels about the rotational axis in use of the vehicle.

An automobile-motor driving device equipped with speed reducer which has improved supply of lubrication oil to inside of the rolling bearings without sacrificing the function of the bearings, to reduce deformation in the rolling bearing outer ring. A parallel shaft gear speed reducer provides an automobile-motor driving device equipped with speed reducer. The parallel shaft gear speed reducer includes a plurality of gear shafts having two ends supported via rolling bearings fitted into bearing fitting holes in a speed reducer casing which houses the parallel shaft gear speed reducer. A groove in an inner circumferential surface of the bearing fitting hole into which the rolling bearing is fitted communicates between a space that houses the speed reducer and an inside space of the bearing fitting hole, at a location not crossed by the line of action of a load acting upon the rolling bearing due to the meshing of the gears.

The present invention discloses a high-load explosion-proof driving device, including a servo motor, a reduction box, and a power take-off assembly. The power take-off assembly includes a step sleeve, a coupling, a wheel support sleeve, and a driving wheel. The step sleeve is connected to a robot body, the coupling is disposed through the step sleeve, and a bearing structure and a sealing structure are provided between the coupling and the step sleeve. The coupling is provided with a driving wheel key and a driving wheel sleeve on the left, the driving wheel key is connected to the driving wheel sleeve, and the driving wheel sleeve is connected to the driving wheel. The present invention has the following advantages: the driving device has a high protection capability, and at the same time, power transmitted from the reduction box is distributed, thereby improving loading capability of a mobile chassis.

An electric drive module that includes a housing, a pair of drive units and a coupling unit. The drive units are disposed in the housing and each drive unit includes a motor unit and a friction brake. The motor unit has a stator, which is non-rotatably coupled to the housing, and a rotor that is rotatable about a motor axis and configured to drive a wheel of a vehicle. The friction brake has a first portion, which is non-rotatably coupled to the housing, and a second portion that is drivingly coupled to the rotor. The friction brake can be operated to create a rotational drag force that resists rotation of the second portion relative to the first portion. The coupling unit is configured to selectively rotatably couple the second portions of the friction brakes to one another.

In an electric vehicle including a motor shaft connected to a drive motor, a counter shaft coupled with the motor shaft, a drive shaft coupled with the counter shaft, a drive wheel coupled with the drive shaft, a plurality of bearings configured to support the counter shaft, and a plurality of gears configured to rotate integrally with the counter shaft, a torque sensor is disposed in a region in which a slope of a bending moment occurring on the counter shaft is minimum at a time that the drive motor is driven.

An electric bicycle includes a motor that includes a stator and a rotor and that is driven by a battery, a reduction gear, an output shaft configured to output power of the motor, a sprocket fixed to the output shaft, a housing, and a water jacket configured to cool the motor. The water jacket includes a flange section protruding outward in a radial direction of the stator, the flange section being formed in the water jacket at a side opposite to the reduction gear in a vehicle width direction.

An electric vehicle comprising a portal axle architecture. The electric vehicle having a frame. An axle assembly including a De Dion tube. A first wheel hub and a second wheel hub rotatably coupled with the De Dion tube. A suspension system coupled with the vehicle frame, the suspension system having at least one pair of trailing arms pivotally coupled with the vehicle frame and at least one pair of air springs. A first electric drive assembly in driving engagement with the first wheel hub, and a second electric drive assembly in driving engagement with the second wheel hub.