Tesla Patents

Electric Motor And Powertrain

Tesla filed these patents around Electric Motor And Powertrain in the last 5 years

# Patent No. Short Description
1. US9331552B2 A robust, reliable, and cost-effective cooling system for electric motor rotors that uses heat pipes to efficiently transfer heat from the rotor to a heat exchanger
2. US9692277B2 An integrated drive system assembly for an electric vehicle that combines an electric motor, power inverter, and gearbox into a single multi-piece enclosure
3. US8463480B2 A vehicle charging system that reduces engine usage while charging the battery
4. US10131248B2 A control system for an all-wheel drive electric vehicle that provides improved traction and stability control
5. US8154166B2 A dual-layer winding arrangement for a three-phase, four pole motor and a method of manufacturing the same
6. US7742852B1 An electric vehicle control system that optimizes torque applied to the primary and assist drive systems to improve traction and stability while minimizing wheel slip
7. US7489057B2 A cooling system for the rotor in the drive motor of an electric vehicle that uses a hollow rotor shaft with a coolant feed tube rigidly attached to it
8. US7960928B2 Optimal flux control in electric vehicles to maximize performance, efficiency, regeneration, and thermal management while also controlling torque or speed
9. US20200350796A1 An electric motor with a rotor cooling system that extracts heat from the rotor when stationary to heat up the motor and battery
10. US20210018087A1 Electric drive unit with improved bearing alignment and rotor balancing for electric vehicles
11. US7741750B1 Induction motor design for electric vehicles that provides high torque over a wide speed range, improves efficiency, and reduces size and weight compared to conventional induction motors
12. US8773058B2 A method for operating an electric vehicle including a vector-controlled AC induction motor that uses a runtime thermal model to estimate individual component temperatures of the motor, and limits power, torque, or phase current of the AC induction motor to maintain the temperature below a critical temperature
13. US10439477B2 An electric motor cooling system that provides effective cooling of critical motor parts while minimizing the number of pressure-based distribution openings
14. US8365392B2 A rotor assembly for an electric motor that provides improved electrical and mechanical characteristics in a low weight assembly
15. US8970147B2 Mitigating cold ambient performance degradation of an electric vehicle (EV) by intentionally dissipating excess power as heat to improve performance in cold conditions

Download the full patent report containing all of the 44 patents