Design of vehicle cruise control using road inclinations

Abstract

The paper proposes the design of velocity based on road inclinations, speed limits, a preceding vehicle on the lane and traveling time. A new control method in which the longitudinal control incorporates the brake and traction forces is also proposed to achieve the required velocity. By choosing the velocity which is appropriate according to the road and traffic information, the number of unnecessary accelerations and brakings and their durations can be significantly reduced. In the design method the modeling and robust control of the LPV theory are exploited. The operation of the longitudinal controlled system and the influences of different designed parameters are analyzed through vehicle simulations. Finally, the efficiency of the controlled system is demonstrated on a real transportation route.

Integrated multi-criteria velocity and semi-active suspension control based on look-ahead road information

“…The look-ahead control algorithm has already been introduced in [10], hence here only a brief explanation is given. First, the selected look-ahead distance L is split into n number of road sections, see Fig.…”

LPV-based Control Design of an Adaptive Cruise Control System for Road Vehicles

“…Considering those aspects, the robust Linear Parameter-Varying (LPV) control method has been chosen to design an appropriate control scheme. A LPV control design has been already presented in [Németh and Gáspár, 2013], in which the differences of driving and braking dynamics are considered in the velocity tracking problem. The designed system is robust against longitudinal disturbances, such as rolling resistances, road inclinations and aerodynamic forces.…”

Look-ahead control of road vehicles for safety and economy purposes

“…The relation between road slopes and optimal speed profile considering energy efficiency was already introduced in [10]. Thus, here the detailed calculation of the design velocity is skipped, only the main results are summarized.…”

“…While the weights γ i represent the rate of the road conditions, weight Q determines the tracking requirement of the momentary reference speed v ref,0 , see [10]. The optimal velocity of the vehicle can be written as follows:…”

“…Based on road inclinations and speed limits energy efficient look-ahead cruise control has A already been introduced by [10]. In this paper the method is extended by the exploitation of the safe cornering velocity, which is based on the curve radius of the road.…”