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Method and device for determining motor vehicle acceleration

  • US 8,489,299 B2
  • Filed: 06/03/2004
  • Issued: 07/16/2013
  • Est. Priority Date: 07/12/2003
  • Status: Active Grant
First Claim
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1. A method of determining acceleration of a motor vehicle, the method comprising:

  • obtaining by measurement a first signal representing vehicle speed, differentiating, by a microprocessor, the first signal with respect to time, and low pass filtering, by the microprocessor, the first signal to provide a first filtered acceleration signal;

    obtaining, by the microprocessor, a second filtered acceleration signal by calculating a net driving force acting on the vehicle, calculating an estimated vehicle acceleration from the net driving force, and high pass filtering the estimated vehicle acceleration; and

    adding, by the microprocessor, the first and second filtered acceleration signals to obtain an output signal representing vehicle acceleration.

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