Electric drive two-speed transaxle

An electric drive module for a motor vehicle, comprising:

• an electric motor;
• a first input member;
• a first output member;
• a two-speed module selectively drivingly interconnecting the first input member and the first output member at one of two different drive ratios;
• a reduction unit including a second input member being driven by the first output member and having a second output member being driven at a reduced speed relative to the second input member;
• and
• a differential assembly having an input driven by said second output member, a first differential output driving a first output shaft, and a second differential output driving a second output shaft, wherein the two-speed module includes a planetary gearset, the first input member including an annulus gear of the planetary gearset and the first output member including a carrier of the planetary gearset, wherein the two-speed module includes a first clutch for selectively driving one of a sun gear and the carrier at the same speed as the annulus gear, a second clutch selectively restricting rotation of the sun gear to operate the planetary gearset in an underdrive mode, a spring biasing a member of the second clutch to place the second clutch in a torque transferring mode and operate the planetary gearset in an underdrive mode.

An electric drive module for a motor vehicle, comprising:

• an electric motor;
• a first input member driven by said electric motor;
• a first output member;
• a two-speed module driven by said first input member for selectively driving said first output member at first and second speed ratios, said two-speed module including a gearset, a first clutch and a second clutch, said gearset including a first component driven by said first input member, a second component driving said first output member, and a third component, said first clutch being operable to selectively couple one of said second component and said third component for common rotation with said first component, said second clutch being operable to selectively restrict rotation of said third component, and wherein one of said first and second clutches is normally operable in a closed, torque transferring mode while the other one of said first and second clutches is normally operable in an open non-torque transferring mode to establish a corresponding one of said first and second drive ratios;
• a reduction unit having a second input member driven by said first output member and a second output member that is driven at a reduced speed relative to said second input member;
• and
• a differential assembly having a differential input driven by said second output member, a first differential output driving a first output shaft, and a second differential output driving a second output shaft.

An electric drive module for a motor vehicle, comprising:

• an electric motor having a rotor shaft;
• a transfer shaft;
• a two-speed arrangement operable for selectively establishing first and second speed ratio drive connections between said rotor shaft and said transfer shaft, said two-speed arrangement including a planetary gearset, a first clutch, a second clutch, and a clutch actuator, said planetary gearset including an annulus gear driven by said rotor shaft, a carrier driving said transfer shaft, a sun gear, and planet gears rotatably supported by said carrier and which are meshed with said annulus gear and said sun gear, said first clutch being operably disposed between said annulus gear and one of said carrier and said sun gear, said second clutch being operably disposed between said sun gear and a stationary member, wherein said first speed ratio drive connection is established when said first clutch is engaged and said second clutch is released, wherein said second speed ratio drive connection is established when said first clutch is released and said second clutch is engaged, and wherein said first clutch includes a biasing member for normally engaging said first clutch while said second clutch is released to normally establish said first speed ratio drive connection, said clutch actuator operable for releasing said first clutch and engaging said second clutch to establish said second speed ratio drive connection;
• and
• a gearbox including a reduction unit and a differential assembly, said reduction unit having an input member driven by said transfer shaft and an output member that is driven at a reduced speed relative to said input member, said differential assembly having a differential input driven by said output member and first and second differential outputs driven by said differential input.

An electric drive module for a motor vehicle, comprising:

• an electric motor having a rotor shaft;
• a transfer shaft;
• a two-speed arrangement operable for selectively establishing first and second speed ratio drive connections between said rotor shaft and said transfer shaft, said two-speed arrangement including a planetary gearset, a first clutch, a second clutch, and a clutch actuator, said planetary gearset including an annulus gear driven by said rotor shaft, a carrier driving said transfer shaft, a sun gear, and planet gears rotatably supported from said carrier and meshed with said annulus gear and said sun gear, said first clutch being operably disposed between said annulus gear and one of said carrier and said ring gear, said second clutch being operably disposed between said sun gear and a stationary member, wherein said first speed ratio drive connection is established when said first clutch is engaged and said second clutch is released, wherein said second speed ratio drive connection is established when said first clutch is released and said second clutch is engaged, and wherein said second clutch includes a biasing member for normally engaging said second clutch while said first clutch is released to normally establish said second speed ratio drive connection, said clutch actuator being operable for releasing said second clutch and engaging said first clutch to establish said first speed ratio drive connection;
• and
• a gearbox including a reduction unit and a differential assembly, said reduction unit having an input member driven by said transfer shaft and an output member driven at a reduced speed relative to said input member, said differential assembly including a differential input driven by said output member and first and second differential outputs driven by said differential input.