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VEHICLE TRAVEL CONTROL APPARATUS

  • US 20150142292A1
  • Filed: 11/07/2012
  • Published: 05/21/2015
  • Est. Priority Date: 07/06/2012
  • Status: Active Grant
First Claim
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1. A vehicle travel control apparatus having a vehicle speed control unit which controls a vehicle speed of an own vehicle based on a target vehicle speed of the own vehicle set beforehand, comprising:

  • a vehicle speed detection unit which detects an actual vehicle speed of the own vehicle;

    an external situation recognition unit which recognizes an external situation in the surroundings of the own vehicle;

    a utility function determination unit which determines a utility function, which represents a relationship between a manipulated variable for vehicle speed control, which is a manipulated variable for controlling the vehicle speed of the own vehicle, and a utility index value, which is an index value representing an effectiveness degree of controlling the vehicle speed of the own vehicle according to each value of the manipulated variable for vehicle speed control, at least according to the target vehicle speed and the detected vehicle speed of the own vehicle;

    a travel inhibition degree function determination unit which determines a travel inhibition degree function, which represents a relationship between the manipulated variable for vehicle speed control and a travel inhibition degree index value, which is an index value representing an inhibition degree of the travel of the own vehicle estimated in a case where the vehicle speed of the own vehicle is controlled according to each value of the manipulated variable for vehicle speed control, according to the recognized external situation; and

    an appropriateness function determination unit which determines an appropriateness function, which represents a relationship between the manipulated variable for vehicle speed control and an appropriateness of each value of the manipulated variable for vehicle speed control, by combining the determined utility function and the determined travel inhibition degree function,wherein the vehicle speed control unit is configured to control the vehicle speed of the own vehicle by manipulating a driving/braking force of the own vehicle according to the value of the manipulated variable for vehicle speed control corresponding to a highest appropriateness in the determined appropriateness function.

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