Richard Pothin

Input–output decoupling of nonlinear systems by static measurement feedback

Abstract This paper gives necessary and sufficient conditions for solvability of the strong input–output decoupling problem by static measurement feedback for nonlinear control systems.

LPV Control for μ-split braking assistance of a road vehicle

In this paper, a system is developed to control the yaw moment and the lateral deviation in the case of braking with different adhesion conditions on the left and right sides. A driving assistance is obtained by using the front and rear steering angles. The control law is designed using an extension of the H∞ loop-shaping method to the case of linear parameter-varying (LPV) plants: it allows to obtain a controller whose dynamics depend on the longitudinal speed. The results are evaluated by implementing this controller on a simulation software developed by RENAULT.

Disturbance decoupling for a class of nonlinear MIMO systems by static measurement feedback

Abstract In this paper, the disturbance decoupling problem for a square-invertible nonlinear system is stated and solved by static feedback of measured variables only, in contrast with standard solutions which assume that the full state is available for feedback. The results are valid for left-invertible systems as well.

Disturbance Decoupling of Nonlinear Miso Systems by Static Measurement Feedback

This paper highlights the role of the rank of a differential one-form in the solution of such nonlinear control problems via measurement feedback as disturbance decoupling problem of multi-input single output (MISO) systems. For the later problem, some necessary conditions and sufficient conditions are given.

Measurement Feedback Disturbance Decoupling of Nonlinear Discrete-Time Systems

Abstract This paper gives necessary and sufficient conditions for the existence of a solution via measurement feedback to the disturbance decoupliug problem in the case of a discrete-time nonlinear system. Dynamic measurement feedbacks are investigated as well. It is shown that some results first established in the case of continuous time systems can be extended to the situation of discrete time nonlinear systems.

Nonlinear Stabilizing Dynamical Output Feedback for a Series DC Motor

Abstract In this paper, we propose a direct output feedback controller design for a series DC motor. The advantage of the new controller is that it is designed with well developed stability theory. Moreover, the new controller has a very clear structure: it has a total dimension of 2, in which one is for linearization and the other is for stabilization. Simulation results are shown for the effectiveness of the new controller.

LPV CONTROL OF A ROAD VEHICLE DURING BRAKING ACTION IN CURVE.

Abstract In this paper, a driving assistance system is developed to control the yaw moment in the case of light braking in curve, by using the front and rear steering angles. The controller we are looking for is scheduled by the longitudinal speed. We propose a comparative analysis between two extensions of the H ∞ loop-shaping method to linear parameter-varying (LPV) plants, where the rate of variation of the scheduling parameter is assumed unbounded or bounded.

Deployment of 48 V in Renault, current status and future outlook

The first vehicles were not equipped with an electric supply distribution system: starting was assured by hand cranking, lights were oil laps and the function of the horn was assured by a bell.

Static measurement feedback decoupling of nonlinear control systems

This paper gives necessary and sufficient conditions for solvability of the strong input-output decoupling problem by static measurement feedback for nonlinear control systems.