E-aam Driveline Systems Ab

Magnus Hederstad

Erik Sten

The present teachings provide for a torsional damper and a transmission having a torsional damper. The torsional damper can include first and second members. The first member can include a first hub, a first outer portion, and a plurality of first spokes. The first hub can be non-rotatably coupled to an input member of the transmission. The first spokes can extend radially between the first hub and the first outer portion. The first spokes can couple the first outer portion to the first hub. The second member can include a second hub and a second outer portion. The second hub can be non-rotatably coupled to an output member of the transmission. The second outer portion can be radially outward of the second hub and can be fixedly coupled to the second hub and to the first outer portion.

Transmission with torsional damper

The present teachings provide for a transmission including a planetary gear set and a first displacement device. The planetary gear set can include a sun gear, ring gear, planet carrier, first planet gear and second planet gear. The sun gear, ring gear, and planet carrier can be disposed about a first axis. The first planet gear can meshingly engage with the sun gear and the ring gear, and can be coupled to the planet carrier for rotation relative thereto about a second axis. The first planet gear can be axially slidable relative to the planet carrier. The second planet gear can meshingly engage with the sun gear and the ring gear, and can be coupled to the planet carrier for rotation relative thereto about a third axis. The first displacement device can be configured to displace the first planet gear axially relative to the second planet gear.

Planetary gear mechanism with reduced gear lash

A drive module that includes an electric motor, an input pinion driven by the electric motor, a transmission driven by the input pinion, a planetary differential assembly and first and second axle shafts. The transmission has a first transmission output member. The planetary differential assembly has an input ring gear, a first output sun gear and a second output sun gear. The first and second output sun gears have different pitch diameters, different modules and a common quantity of sun gear teeth. The planetary differential assembly is configured to provide a 50-50 torque split between the first and second output sun gears. The first axle shaft is coupled to the first output sun gear for rotation therewith. The second axle shaft is coupled to the second output sun gear for rotation therewith.

Growing community of inventors

Trollhättan, Sweden

Magnus Hederstad