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Automatic shift control system

  • US 4,692,866 A
  • Filed: 02/13/1985
  • Issued: 09/08/1987
  • Est. Priority Date: 02/14/1984
  • Status: Expired due to Term
First Claim
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1. A control system for an automatic transmission of a vehicle comprising:

  • speed sensing means for sensing a running speed of said vehicle;

    load sensing means for sensing a load of an engine of said vehicle;

    curve sensing means for sensing when said vehicle is moving along a curve; and

    controlling means, coupled to said speed sensing means, load sensing means and curve sensing means for;

    (1) commanding said automatic transmission to shift in accordance with a first pattern based on vehicle speed and engine load detected by said speed sensing means and load sensing means, respectively, when said curve sensing means senses that said vehicle is not moving along a curve, and (2) commanding said automatic transmission to shift in accordance with a second pattern based on vehicle speed and engine load when said curve sensing means senses said vehicle is moving along a curve, said second pattern causing said automatic transmission to shift at higher vehicle speeds and at lower loads than said first pattern.

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