Patent ID: 9550478
Date: 2017-01-24
CPC Classifications: B60T,B60W

Claim:
1. A control method for a hill start assistant control system which prevents a vehicle from being pushed back by generating a braking force with a brake system when the vehicle starts after stopping on a hill, the method comprising: (a) determining, by a controller, that the vehicle is stopped and braked; (b) receiving, by the controller, a currently sensed vehicle acceleration value from an acceleration sensor on the vehicle which senses acceleration and periodically outputs the currently sensed vehicle acceleration value with the vehicle stopped and braked; (c) determining, by the controller, whether a condition for stabilizing an output of the acceleration sensor is satisfied, using the currently sensed vehicle acceleration value and a previously sensed vehicle acceleration value; (d) finding an average acceleration, by the controller, by accumulating the currently sensed vehicle acceleration value and averaging sensed vehicle acceleration values of the acceleration sensor which are accumulated up to a current time when the condition for stabilizing the output of the acceleration sensor is not satisfied; (e) comparing the average acceleration with an acceleration reference value, by the controller; and (f) operating the hill start assistant control system, by the controller, when the average acceleration is larger than the acceleration reference value.