Drivetrain
AssigneeDesignwerk Technologies AG
InventorFrank Loacker
Life of this patent
Estimating the term…
Abstract
A drive train for an electric truck includes a gearbox and a gear box housing. The drive train further includes an output shaft extending in an axial direction across a wall of the gear box housing and powering a cardan shaft arranged outside of the gear box housing. At least one output gear is arranged inside of the gear box housing on the output shaft. At least a first and a second electric motor attached to the housing of the gearbox form a team of electric motors, wherein each electric motor includes a drive shaft extending parallel to the axial direction and being interconnected via an input gear to an output gear.
Claims12
A drive train (1) for an electric truck, said drive train (1) comprising:
- a. a gearbox (2) comprising a gear box housing (3);
- b. an output shaft (4) extending in an axial direction (x) across a wall (5) of the gear box housing (3) and powering a cardan shaft (6) arranged outside of the gear box housing (3);
- c. at least one output gear (7) arranged inside of the gear box housing (3) on the output shaft (4);
- d. at least a first and a second electric motor (8) attached to the housing (3) of the gearbox (2) forming a team of electric motors (9), wherein
- e. each electric motor (8) includes a drive shaft (10) extending parallel to the axial direction (x) and being mechanically interconnected via an input gear (11) to the at least one output gear (7) in a continuous manner, wherein
- f. the input gears (11) of the electric motors (8) are directly coupled to the at least one output gear (7) forming a single stage gearbox (2);
- g. wherein the output gear (7) is integrally formed with the output shaft (4) and comprises a disc-shaped gear body (12) and a first and a second helical gear ring (13) arranged back to back to each other on the gear body (12) forming a double helical ring gear;
- and
- h. wherein the housing (3) of the gearbox (2) has a front part (14) and a rear part (15) which are substantially identical and interconnectable to each other in a separation plane (16) arranged essentially perpendicular to the axial direction (x).
A drive train (1) for an electric truck, said drive train (1) comprising:
- a. a gearbox (2) comprising a gear box housing (3);
- b. an output shaft (4) extending in an axial direction (x) across a wall (5) of the gear box housing (3) and powering a cardan shaft (6) arranged outside of the gear box housing (3);
- c. at least one output gear (7) arranged inside of the gear box housing (3) on the output shaft (4);
- d. at least a first and a second electric motor (8) attached to the housing (3) of the gearbox (2) forming a team of electric motors (9);
- e. wherein each electric motor (8) includes a drive shaft (10) extending parallel to the axial direction (x) and being mechanically interconnected via an input gear (11) to the at least one output gear (7) in a continuous manner;
- f. wherein the input gears (11) of the electric motors (8) are directly coupled to the at least one output gear (7) forming a single stage gearbox (2);
- and
- g. wherein the housing (3) of the gearbox (2) has a front part (14) and a rear part (15) and at least one nozzle bridge (19) extends between the front part (14) and the rear part (15) of the gearbox housing (3), said nozzle bridge (19) comprises at least one nozzle (22) for injecting oil into the gear box (2).
Dependencies are inferred from the claim text.