×

Method and apparatus for predicting minimum stopping distance required to brake running vehicle

  • US 5,948,035 A
  • Filed: 09/17/1998
  • Issued: 09/07/1999
  • Est. Priority Date: 09/18/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of predicting a minimum stopping distance of a subject vehicle required to stop the subject vehicle by activation of a subject vehicle braking system thereof during running of the subject vehicle, comprising:

  • a step of obtaining measurement data for each of at least one sample vehicle which is braked by a sample vehicle braking system thereof operated with its full braking capacity, said at least one sample vehicle including at least one of a vehicle different in type from said subject vehicle and a vehicle identical in type with said subject vehicle but different in specification from said subject vehicle, said sample vehicle braking system being one of a braking system different in type from said subject vehicle braking system and a braking system identical in type with said subject vehicle braking system, said measurement data including a weight of said each sample vehicle, a running speed of said each sample vehicle when said sample vehicle braking system of said each sample vehicle starts to be activated, a stopping distance through which said each sample vehicle has run to be stopped, and a radius of a tire of said each sample vehicle;

    a step of obtaining at least one predicting equation on the basis of said measurement data in a statistical manner, said at least one predicting equation providing a predicted value of said minimum stopping distance on the basis of subject vehicle data for said subject vehicle, said subject vehicle data including a weight of said subject vehicle, a running speed of said subject vehicle when said subject vehicle braking system of said subject vehicle starts to be activated, and a radius of a tire of said subject vehicle; and

    a step of calculating said predicted value of said minimum stopping distance of said subject vehicle, by substituting said subject vehicle data into one of said at least one predicting equation, so that said one predicting equation provides said predicted value of said minimum stopping distance.

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