Patent application number | Description | Published |
20110320090 | METHOD FOR DETERMINING THE UNDERSTEERING RATIO OF A VEHICLE PROVIDED WITH ELECTRIC POWER STEERING AND FOR OPTIONALLY CORRECTING THE POWER STEERING - The invention relates to a method for calculating the understeering ratio of automobiles provided with electric power steering (EPS) including an electric assistance motor ( | 12-29-2011 |
20120203397 | METHOD FOR DETERMINING A TORQUE SET VALUE FOR A STEERING WHEEL FOR A POWER STEERING SYSTEM OF A MOTOR VEHICLE - The invention relates to a power steering system in which the set value for torque or force at the steering wheel is predetermined on the basis of various parameters and information so as to provide the most driving comfort in all conditions of driving the vehicle. The torque or force set value is predetermined on the basis of the sideways acceleration of the vehicle, the acceleration in turn being predetermined mainly from an estimate of the force exerted on the rack, and preferably also predetermined by other methods, with the estimate being weighted among all of the obtained values. Said method is particularly useful for vehicles provided with electrical power steering. | 08-09-2012 |
20130024072 | DEVICE FOR DETERMINING THE ABSOLUTE ANGULAR POSITION OF THE STEERING WHEEL OF AN ELECTRIC POWER-ASSISTED STEERING COLUMN OF A MOTOR VEHICLE USING WEIGHTED DYNAMIC PARAMETERS OF THE VEHICLE - A method for determining the absolute angular position of a steering wheel of an electric power-assisted steering column of a motor vehicle, including a means for measuring a dynamic parameter while the vehicle is running and including among others, the steps of periodically determining a multi-turn relative angular position, determining at least one dynamic parameter relating to the running conditions of the vehicle using the means for measuring said parameter, determining an absolute steering-wheel angle calculated according to at least one dynamic parameter, and weighting the calculated value of the absolute steering-wheel angle according to a test of the validity of the calculated value of the absolute steering-wheel angle and the origin of said value, in other words, the measurement means used to determine said at least one dynamic parameter. | 01-24-2013 |
20130151081 | SECURING THE ASSISTANCE TORQUE BY MEANS OF AN ESTIMATOR OF THE FORCE ON THE RACK - The invention relates to a method for securing the assistance torque ( | 06-13-2013 |
20150151782 | METHOD FOR CENTERING THE STEERING WHEEL OF A MOTOR VEHICLE POWER-ASSISTED STEERING - The invention relates to a method to assist with turning a vehicle power assisted steering wheel, during which method a return setpoint (final return setpoint) quantifying a return force intended to be applied to said steering wheel in order to assist with returning said steering wheel to a predetermined central position is formulated, said method involving at least one step (a) of determining longitudinal acceleration during which step the instantaneous longitudinal acceleration of the vehicle is evaluated, followed by a step (b) of adapting the return setpoint during which step the steering wheel return setpoint is adjusted according to said instantaneous longitudinal acceleration so as to increase the intensity of the return force if said longitudinal acceleration increases, and thus notably compensate for the lessening of the natural centring effect that is caused by the lightening of the steering under acceleration conditions. | 06-04-2015 |