Multiple motor multiple speed continuous power transmission

A powertrain system, comprising:

• an output;
• a first electric motor having an uninterrupted connection to the output;
• a second electric motor having an interruptible connection to the output;
• wherein the second electric motor is configured to supply power to the output via at least two planetary gears and a clutch;
• wherein the clutch includes a dog clutch;
• wherein the planetary gears include a first planetary gear and a second planetary gear:
• a first output shaft connected to the first electric motor;
• a second output shaft connected to the second electric motor;
• wherein the first planetary gear is coupled between the first output shaft and the output to increase torque from the first electric motor;
• wherein the second planetary gear is connected to the second out lit shaft;
• wherein the clutch is configured to selectively engage the second output shaft and the second planetary gear to chat torque from the second electric motor;
• wherein the first output shaft and the second output shaft are coupled in an end-to-end engagement;
• and
• wherein the first output shaft and the second output shaft are aligned along a longitudinal axis.

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 is connected to the output via a clutch;
• wherein the clutch includes a 3-way dog clutch;
• wherein the power is supplied to the output solely through the electric motors;
• wherein the first and second electric motors are high speed motors with a rated operating speed of at east 5,000 rpm;
• wherein the interruptible connection includes a clutch and a planetary gear coupled to the second electric motor;
• wherein the planetary gear includes a sun gear, a ring gear, and one or more planet gears engaged between the sun gear and the ring gear;
• a first range member connected to the planet gears;
• a second range member connected to the sun gear;
• wherein the dog clutch has a neutral position, a first range position, and a second range position;
• wherein the dog clutch at the neutral position does not engage the first range member and the second range member;
• wherein the dog clutch at the first range position engages the first range member to increase torque from the second electric motor;
• and
• wherein the dog clutch at the second range position engages the second range member to reduce torque from the second electric motor.