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Method for operating a non-railborne hybrid vehicle

  • US 5,927,416 A
  • Filed: 09/18/1997
  • Issued: 07/27/1999
  • Est. Priority Date: 09/18/1996
  • Status: Expired due to Fees
First Claim
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1. A series hybrid vehicle comprising:

  • an internal combustion engine for producing a mechanical power, means for changing an operating state of the internal combustion engine, a first electrical machine having a mechanical connection to at least one driving wheel for transmitting mechanical power, an electrical energy storer having an electrical connection to the first electrical machine for transmitting electrical power, and a second electrical machine which has a mechanical drive connection to the internal combustion engine and is operable as a generator to convert the mechanical power delivered by the internal combustion engine into electrical power;

    wherein the course of power transmitted via the mechanical connection immediately follows an instruction, and the electrical energy storer, functioning as an intermediate storer, at least occasionally during the change of operating state of the internal combustion engine delivers or absorbs power; and

    wherein the internal combustion engine, during the change in operating state, is guided through certain selected operating points on an internal combustion engine characteristic curve which, with regard to at least one operating parameter selected from minimal energy consumption, minimal emission of pollutants, minimal noise formation and best possible care of the engine, are optimal, or which permit a rapid increase in rotational speed of the internal combustion engine, independently of the course of the mechanical power transmitted via the mechanical connection such that there is a complete decoupling of the driving wheel(s) from the internal combustion engine with regard to power during the change in operating state of the internal combustion engine.

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