Patent ID: 6299263
Filing Date: 2001-10-09
Classification: B60K,B60T,B60W,B60Y

Abstract:
An automatic retarder controller which is mounted on a load-carrying vehicle together with a cooled retarder, and which automatically controls a braking force of said retarder so that a slope descending vehicle speed remains nearly constant, comprising:a means for detecting an accelerator pedal depressing signal;means for detecting braking signals during the manipulation of said retarder and other brakes;a means for outputting a set signal inputted from the outside; anda means for detecting the vehicle speed,wherein the controller previously stores the slope descending vehicle speed as a plurality of stepwise setting vehicle speeds, and allows the slope descending vehicle speed to be selected from said plurality of setting vehicle speeds,while controlling the vehicle speed to remain constant, when said detected accelerator pedal depressing signal is inputted, said controller intermitting said control of the vehicle speed to remain constant to allow the vehicle speed to increase, and when said detected braking signals are inputted, intermitting said control of the vehicle speed to remain constant to allow the vehicle speed to decrease, andwhen said set signal is inputted during said intermissions, extracting the vehicle speed closest to said detected vehicle speed from said plurality of setting vehicle speeds, and restarting said control of a vehicle speed to remain constant with said extracted vehicle speed being set as a new slope descending vehicle speed.