Motor configurations for multiple motor mixed-speed continuous power transmission

A powertrain system, comprising:

• an output;
• a first electric motor with an uninterrupted connection to the output;
• a second electric motor with an interruptible connection to the output;
• wherein the second electric motor has a rated continuous torque that is greater than the first electric motor;
• wherein the second electric motor has a rated continuous power that is greater than the first electric motor;
• a first gear train coupled to the first electric motor;
• wherein the first gear train includes a first planetary gear;
• wherein the first planetary gear includes a sun gear, a ring gear surrounding the sun gear, and one or more planet gears engaged between the sun gear and the ring gear;
• wherein the sun gear is attached to the first electric motor;
• a first output shaft connecting the first planetary gears to the output;
• a second gear train coupled to the second electric motor;
• wherein the second gear train includes a second planetary gear and a clutch configured to engage the first output shaft;
• and
• a selectable one-way clutch (SOWC) including a clutch engagement member and an actuator configured to selectively engage and disengage the clutch engagement member with the ring gear.

A powertrain system, comprising:

• an output;
• a first electric motor with an uninterrupted connection to the output;
• a second electric motor with an interruptible connection to the output;
• wherein the first and second electric motors are different types;
• wherein the first electric motor is located upstream relative to the second electric motor;
• wherein the first electric motor is a low speed motor and the second electric motor is a high speed motor;
• a first output shaft secured to the first electric motor;
• wherein the first output shaft has a clutch engagement member;
• a second output shaft secured to the second electric motor;
• a speed reduction gear train directly connected to an output end of the second electric motor to increase torque supplied from the second electric motor;
• wherein the speed reduction gear train includes a first planetary gear;
• wherein the first planetary gear has a sun gear attached to the second output shaft, a ring gear, and one or more planet gears engaged between the sun gear and the ring gear;
• a second gear train including a clutch and a second planetary gear;
• wherein the second planetary gear has a first range member and a second range member;
• wherein the clutch is configured to selectively engage the first range member, the second range member, and the clutch engagement member;
• wherein the speed reduction gear train is sandwiched between the second electric motor and the second gear train;
• wherein the first output shaft extends in a longitudinal direction through the first electric motor and the second electric motor;
• and
• wherein the first output shaft extends in a concentric manner within the second output shaft.