Electric generator for electric vehicle
AssigneePower Technology Holdings LLC
InventorJoseph T. Dalum
Life of this patent
Estimating the term…
Abstract
A vehicle includes a first prime mover and a first prime mover driven transmission. A vehicle drive system for the vehicle includes an electric energy source, an electric motor in direct or indirect mechanical communication with the first prime mover, and a high power generator coupled to the electric motor. The electric motor is configured to generate energy for storage in the energy source via rotation using power from the first prime mover and drives the generator using energy from the electric energy source.
Claims21
1-20. (canceled)
A vehicle drive system for a vehicle, the vehicle drive system comprising:
- a first electric energy storage system configured to provide energy at a first voltage;
- a second electric energy storage system configured to provide energy at a second voltage;
- a bidirectional direct current voltage to direct current voltage converter disposed between the first electric energy storage system and the second electric energy storage system;
- an electric motor, wherein the first electric energy storage system is configured to provide power to the electric motor for rotating wheels of the vehicle, and wherein the second electric energy storage system is configured to to provide power for power exportation or for an accessory, the accessory being a pump or hydraulic motor;
- and
- a control system determines configured to transfer energy between the first electric energy storage system and the second electric energy storage system to achieve a desired driving range and a desired energy for the accessory or for power exportation.
A method of operating a vehicle having an at least partially electric vehicle drive system, the method comprising:
- providing vehicle propulsion using an electric motor receiving energy from a first electric energy storage system configured to provide energy at a first voltage;
- and
- using regenerative braking to charge the first electric energy storage system;
- providing energy from the first electric energy storage system to a second electric energy storage system configured to configured to provide energy at a second voltage using a bidirectional direct current voltage to direct current voltage converter disposed between the first electric energy storage system and the second electric energy storage system;
- providing energy from the second electric energy storage system for use to perform work external to the vehicle at a work site;
- and
- providing energy from the second electric energy storage system to the first electric energy storage system using the bidirectional direct current voltage to direct current voltage converter.
A fully electric vehicle, comprising:
- a traction battery;
- a DC traction motor for propelling the vehicle using power from the traction battery;
- and
- an auxiliary battery;
- a bidirectional direct current voltage to direct current voltage converter disposed between the traction battery and the high energy battery;
- wherein the auxiliary battery is configured to provide power for exportation or for an accessory, the accessory being a pump or hydraulic motor;
- and
- a control system configured to transfer energy between the traction battery and the auxiliary battery to achieve a desired driving range and a desired energy for the accessory or for power exportation.
Dependencies are inferred from the claim text.