×

Method of indicating a shift operation of a manual transmission gear of a vehicle

  • US 4,868,756 A
  • Filed: 02/09/1987
  • Issued: 09/19/1989
  • Est. Priority Date: 08/09/1985
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for indicating a shift operation for a manual transmission gear in a vehicle having an engine, comprising the steps of:

  • (a) detecting a vehicle speed and a temperature of the engine mounted on the vehicle;

    (b) determining a reference vehicle speed, said reference vehicle speed being set at a first value which is higher than a second value, said second value corresponding to a condition where the detected temperature of the engine is higher than a first reference engine temperature, said first value being set when the detected temperature of the engine is lower than said first reference engine temperature;

    (c) indicating the shift operation in response to a comparison between the detected vehicle speed and said reference vehicle speed;

    (d) comparing a detected engine temperature with a second reference engine temperature, said second reference engine temperature being lower than said first reference engine temperature; and

    (e) raising said reference vehicle speed when the detected engine temperature is lower than said second reference engine temperature.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×