Method and module for determining of at least one reference value

摘要

At least one reference value is determined for controlling a vehicle's speed by a method that includes predicting, in a first prediction, a first speed based an engine torque that retards the vehicle as compared with a conventional cruise control along a horizon, and, in a second prediction, a second speed based on an engine torque that accelerates the vehicle as compared with the conventional cruise control; comparing the first and second speeds with a lower limit value and/or an upper limit value which delineate a speed range within which speed is maintained, with an offset added to said lower and/or upper limit values if the vehicle is in a route segment that includes a steep hill; and determining the at least one reference value based on the respective comparisons and the first and second predicted speeds.

主权项

1. A method for determination of at least one reference value for a speed regulator that controls a speed of a vehicle such that said reference value may differ from a value corresponding to the speed indicated by a driver of the vehicle, the method comprising:
making, by a module comprising an automated processor, a first prediction and a second prediction of the speed of the vehicle along a horizon, said first prediction based on an engine torque which retards the vehicle as compared with speed regulator in which the reference value equals the speed indicated by the driver, and said second prediction based on an engine torque which accelerates the vehicle as compared with the speed regulator in which the reference value equals the speed indicated by the driver; comparing said first predicted speed and said second predicted speed, respectively, with a lower limit value and/or an upper limit value, wherein the lower and upper limit values delineate a speed range within which the speed is maintained, with an offset added to said lower and/or upper limit values when the vehicle is in a route segment having a steep hill route characteristic; determining the at least one reference value based on at least one of said comparisons and said first predicted speed and said second predicted speed; and outputting the at least one reference value to a vehicle control system for controlling the speed of the vehicle.