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System and method for controlling inter-vehicle distance to preceding vehicle for automotive vehicle equipped with the system and method

  • US 6,188,950 B1
  • Filed: 10/27/1998
  • Issued: 02/13/2001
  • Est. Priority Date: 10/27/1997
  • Status: Expired due to Term
First Claim
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1. A system for an automotive vehicle equipped with the system and defined as a system vehicle, comprising:

  • a first detector for detecting an inter-vehicle distance from the system vehicle to a preceding vehicle traveling ahead of the system vehicle;

    a second detector for detecting a velocity of the system vehicle;

    an inter-vehicle distance controller for calculating a target value of the velocity of the system vehicle to make a detected value of the inter-vehicle distance coincident with the target value of the inter-vehicle distance;

    a system vehicle velocity controller for calculating a target value of a driving-and-braking force applied to the system vehicle to make a detected value of the system vehicle velocity coincident with the target value of the velocity of the system vehicle;

    a drive controller for drivingly controlling a prime mover of the system vehicle and a transmission thereof in accordance with the target value of the driving-and-braking force;

    a maximum deceleration force estimator for estimating a maximum deceleration force according to the target value of the velocity of the system vehicle and a shift position of the transmission of the system vehicle;

    a relative velocity calculator for calculating a relative velocity of the system vehicle to the preceding vehicle on the basis of the detected value of the inter-vehicle distance; and

    a shift position determinator for determining the shift position of the transmission on the basis of the target value of the driving-and-braking force, the estimated maximum deceleration force, and the relative velocity.

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