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Shift control system of an automatic transmission

  • US 5,076,116 A
  • Filed: 09/28/1990
  • Issued: 12/31/1991
  • Est. Priority Date: 09/29/1989
  • Status: Expired due to Fees
First Claim
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1. A shift control system of an automatic transmission, comprising:

  • a load detecting means for detecting a load of an engine;

    a load change rate detecting means for detecting a change rate of the load of the engine; and

    a shift characteristic altering means for altering a shift characteristic of the automatic transmission in accordance with the load of the engine and the change rate of the load of the engine in response to a signal from said load detecting means and said load change rate detecting means, respectively,wherein said shift characteristic altering means alters the shift characteristic of the automatic transmission to produce a higher output level of the engine in accordance with an output signal of the load change rate detecting means showing an increase in the change rate of the load of the engine.

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