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Controlling device for non-stage transmission for vehicles

  • US 5,025,685 A
  • Filed: 07/31/1989
  • Issued: 06/25/1991
  • Est. Priority Date: 07/29/1988
  • Status: Expired due to Term
First Claim
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1. A controlling device for controlling the transmission ratio of a non-stage transmission in a vehicle, comprising,engine output power forecasting means for forecasting an output power of an engine in said vehicle,transmission ratio adjustment storage means for storing a transmission ratio adjustment value and outputting a transmission ratio adjustment according to said output power forecast,vehicle condition sensing means for determining an actual running condition of said vehicle,transmission gear ratio storage means for outputting an initial transmission ratio target value in response to said actual running condition,adding means for determining a transmission ratio target value based on said initial transmission ratio target value and said transmission ratio adjustment, andratio control means for controlling said transmission ratio to correspond with said transmission ratio target value,wherein said engine output power forecasting means comprises comparison means for comparing a detected atmospheric pressure with a predetermined atmospheric pressure, and wherein said engine output power forecasting means provides said transmission ratio adjustment to said adding means when said detected atmospheric pressure is less than said predetermined atmospheric pressure.

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