Renault S.a.s.

Didier Martinez

Lionel Cordesses

Philippe Cottard

Vincent Ayma

Ophélie Thomassin

A method controls lateral pulling of a moving motor vehicle during braking. The method includes a) calculating a value representative of a difference between angular accelerations of left and right wheels of a wheelset of the motor vehicle, b) calculating a correction value as a function of at least the value representative of the difference between the angular accelerations; and c) controlling for the left wheel and the right wheel an associated brake so as to modify a drag force applied by the associated brake as a function of the correction value calculated in step b), such that the drag force applied to a first wheel of the left and right wheels is increased, and the drag force applied to a second wheel different from the first wheel is reduced, to reduce the value representative of the difference between the angular accelerations of the left and right wheels.

Method for controlling the lateral pulling of a motor vehicle during braking

An electrical power steering system for a motor vehicle. The system includes a rack actuator and a sensor for measuring torque applied to the steering wheel by the driver, the actuator and the sensor being arranged on the steering column, respectively between the steering wheel and the rack, and between the actuator and the steering wheel. The system develops a final assistance torque of the electrical power steering, which is adapted to simulate an identical localization of the rack actuator and the torque measuring sensor on the steering column, such that the Bode diagram phase representing the operation of the system is essentially nil at the two main frequencies of the mechanical resonance of the system.

Electrical power steering system for a motor vehicle

(EN) The invention concerns a device for controlling an internal combustion engine (), comprising means () for generating a signal for controlling the internal combustion engine (), a sensor () for supplying a pressure measurement signal of a combustion chamber of the internal combustion engine (), and a filtering device () for generating a filtered pressure signal, said filtering device () being made from analog electronic components. The invention is characterized in that the filtering device () has a closed loop configuration with a direct portion () and a return portion (), the return portion comprising a module for re-injecting () said filtered pressure signal (P) and the direct portion including: a first subtracting module () generating the difference between said pressure measurement signal (P) and the output of said re-injection module (), a static non-linear module () in output of said subtracting module, an integrating module () generating said filtered pressure signal (P) by integration from the output of said non-linear module.

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Saint Etienne sous Bailleul, France

Didier Martinez