{
  "$type": "site.standard.document",
  "description": "An apparatus in an electric vehicle including a propulsion electric motor powered by energy from an energy storage system, including a field oriented motor controller generating motor control signals for the electric motor, the motor control signals responsive to a flux command signal and a torque…",
  "path": "/patents/994291",
  "publishedAt": "2013-01-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L58/25",
    "TESLA MOTORS INC [US]"
  ],
  "textContent": "An apparatus in an electric vehicle including a propulsion electric motor powered by energy from an energy storage system, including a field oriented motor controller generating motor control signals for the electric motor, the motor control signals responsive to a flux command signal and a torque command signal; a torque command calculator, coupled to the motor controller, generating the torque command signal to command a desired torque; an optimal efficiency controller, coupled to the torque command calculator, generating an operating efficiency flux to operate the electric motor at a first determinable efficiency using a first power from the energy storage system while providing the desired torque; an excess dissipation controller generating an inefficient flux to operate the electric motor at a second determinable efficiency using a second power from the energy storage system independent of the desired torque wherein the second power is greater than the first power; and a mode controller setting the flux command signal using one of the optimal efficiency flux and the inefficient flux.",
  "title": "Traction motor controller with dissipation mode"
}