Two-speed gearbox for an electric motor
AssigneeVolvo Car Corporation
InventorPeter Petrov
Life of this patent
Estimating the term…
Abstract
An assembly for use with an electric motor, including a shaft with on a first end and on a second end a rotatable gear. Each gear is fixedly connected to a first clutch member that can slipping engage a second clutch member extending around the shaft and connected to the shaft in a fixed angular position. A force member is axially situated between the clutch members for moving second clutch members relative to the first clutch members in an axial direction such that the first clutch members and the second clutch members can engage and disengage in a slipping manner at relative circumferential speeds.
Claims14
A gear assembly for use with an electric motor, comprising:
- a shaft with a rotatable gear both on a first end and on a second end, each gear connected to respectively a first and second clutch, each clutch having a first clutch member fixedly connected to the gear and the first clutch member being connectable to a second clutch member extending around the shaft and connected to the shaft in a fixed angular position, a force member being axially situated between the first and second clutch and configured for axially moving the second clutch member of each clutch relative to the first clutch member of the respective clutch in an axial direction such that for each clutch the first clutch member and the second clutch member can engage and disengage in a slipping manner at relative circumferential speeds, wherein the force member comprises a hydraulic actuator for each second clutch member, wherein the gear assembly is disposed in a housing having a first housing segment and a second housing segment and an interconnecting plate situated at an interface between the housing segments, the interconnecting plate supporting the hydraulic actuators.
An electric vehicle, comprising:
- an electric motor;
- and
- a gear assembly, comprising:
- a shaft with a rotatable gear both on a first end and on a second end, each gear connected to respectively a first and second clutch, each clutch having a first clutch member fixedly connected to the gear and the first clutch member being connectable to a second clutch member extending around the shaft and connected to the shaft in a fixed angular position, a force member being axially situated between the first and second clutch and configured for axially moving the second clutch member of each clutch relative to the first clutch member of the respective clutch in an axial direction such that for each clutch the first clutch member and the second clutch member can engage and disengage in a slipping manner at relative circumferential speeds, wherein the force member comprises a hydraulic actuator for each second clutch member, wherein the gear assembly is disposed in a housing having a first housing segment and a second housing segment and an interconnecting plate situated at an interface between the housing segments, the interconnecting plate supporting the hydraulic actuators.
Dependencies are inferred from the claim text.