摘要:
An electric drive unit (10) for a vehicle wheel (12) includes an electric motor (14) that powers a planetary drive (16) having a first stage gear set (40) and a second stage gear set (42). Each of the first and second stage gear sets includes a sun gear (44) that is driven by a motor output shaft (18). Each of the first and second stage gear sets also includes a plurality of planet gears (46) that are in meshing engagement with a respective one of the sun gears. The first and second stage gear sets share a common ring gear (54). A planet carrier (62) of the second stage gear set provides driving output to a wheel shaft (22) that drives the vehicle wheel (12).
摘要:
A cooling jacket (10) for a motor (12) includes an extruded jacket body having an outer peripheral surface (34), an inner peripheral surface (36), and a plurality of discrete cooling passages (38) located between the inner and outer peripheral surfaces that provide multi-directional fluid flow. A fluid inlet (72) is provided to direct cooling fluid into the jacket body and a fluid outlet (74) to direct heated fluid away from the jacket body.
摘要:
A cooling jacket (10) for a motor (12) includes an extruded jacket body having an outer peripheral surface (34), an inner peripheral surface (36), and a plurality of discrete cooling passages (38) located between the inner and outer peripheral surfaces that provide multi-directional fluid flow. A fluid inlet (72) is provided to direct cooling fluid into the jacket body and a fluid outlet (74) to direct heated fluid away from the jacket body.
摘要:
An electric motor (12) for driving a vehicle wheel (10) includes a parking brake (20) that is selectively applied to provide a park brake condition. The parking brake includes a sliding brake disk (38) that is mounted for rotation with a motor shaft (22). A brake piston (40) is used to move the sliding brake disk into engagement with a motor housing (26) to achieve a park applied position. The parking brake is held in a release position by a hydraulic system that exerts a fluid pressure force against the brake piston. A resilient mechanism cooperates with the brake piston to apply the parking brake once the fluid pressure force is diminished.
摘要:
An electric motor (12) for driving a vehicle wheel (10) includes a parking brake (20) that is selectively applied to provide a park brake condition. The parking brake includes a sliding brake disk (38) that is mounted for rotation with a motor shaft (22). A brake piston (40) is used to move the sliding brake disk into engagement with a motor housing (26) to achieve a park applied position. The parking brake is held in a release position by a hydraulic system that exerts a fluid pressure force against the brake piston. A resilient mechanism cooperates with the brake piston to apply the parking brake once the fluid pressure force is diminished.
摘要:
An electric drive unit (10) for a vehicle wheel (12) includes an electric motor (14) that powers a planetary drive (16) having a first stage gear set (40) and a second stage gear set (42). Each of the first and second stage gear sets includes a sun gear (44) that is driven by a motor output shaft (18). Each of the first and second stage gear sets also includes a plurality of planet gears (46) that are in meshing engagement with a respective one of the sun gears. The first and second stage gear sets share a common ring gear (54). A planet carrier (62) of the second stage gear set provides driving output to a wheel shaft (22) that drives the vehicle wheel (12).