{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "A method controls the current output of a battery for driving a rail vehicle. A battery actual current Ipasses via a converter to an asynchronous motor, being a drive for the vehicle. The battery actual current Iis set by control circuits as a function of a feedforward control torque Mand a…",
  "path": "/patents/1337534",
  "publishedAt": "2023-02-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J7/00714",
    "Siemens Mobility GmbH"
  ],
  "textContent": "A method controls the current output of a battery for driving a rail vehicle. A battery actual current Ipasses via a converter to an asynchronous motor, being a drive for the vehicle. The battery actual current Iis set by control circuits as a function of a feedforward control torque Mand a specified torque M. The feedforward control torque Mis calculated using a transfer function H(z), which maps the torque setpoint value Monto the battery actual current Ias follows: I(z) H(z) M(z). Accordingly, a zero-point z=znmp, which lies outside the unit circle, is determined by the transfer function H(z). The feedforward control torque Mis calculated as follows: M(z) I(z)/(H(z) z) where: I(z)=I(z) I(z=znmp) where: I[n]=I[n] for all n>0, so that pole point/zero point cancellation is reached by z=znmp at the battery ideal current.",
  "title": "METHOD FOR CONTROLLING THE CURRENT OUTPUT OF A BATTERY"
}