摘要:
The invention concerns a method which consists in: filtering the torque signal (c) using a low-pass filter (B) of the first order at a variable cut-off frequency (f) which takes on, respectively, a minimum value or a maximum value depending on whether the amplitude of the torque signal (c) is, respectively, lower or higher than a predetermined threshold; then in producing a signal (J) indicating, respectively, a steering wheel release (J=1) or a steering wheel grip (J=0) depending on whether the amplitude of the filtered torque signal (e) is, respectively, lower or higher than a predetermined threshold.
摘要:
The processing means, which control the power assisted steering motor (8), determine and give consideration to a first steering angle signal (A) determined as a function of the calculation or measurement of the force or torque delivered by the power assisted steering motor (8) and possibly of the steering torque or force applied by the driver to the steering wheel (2), a second steering angle signal (B) determined as a function of the calculation of the measurement of the angular position of the power assisted steering motor (8), a third signal (C) of the "index" type, that is to say of the type emitted for certain angular positions of the steering system (21), a convergence signal (D) indicative of the convergence of the steering angle calculations, and a confirmation signal (E) confirming the calculation of the steering angle, the convergence signal (D) being produced thanks to the signal (C) of "index" type to indicate a confidence level on the estimated steering angle value. The invention can be applied to vehicles that have an automated steering function.
摘要:
The invention concerns a method which consists in: initializing to zero a counter variable (n) of measurements (x) performed by said torque sensor (12); as long as the counter variable (n) has a value lower than a predetermined threshold (N), storing in memory a measurement value (x) by said torque sensor (12) to the steering wheel, incrementing by one the counter variable (n) of measurements, calculating a variance (Variance) of the (n) measured values (x) of the torque to the steering wheel; emitting a steering wheel grip signal (S=O) if the calculated variance (Variance) is higher than a predetermined variance threshold (M); emitting a signal of non steering wheel grip (S=1) if the calculated variance (Variance) is lower than said predetermined variance threshold (M).
摘要:
L'invention concerne un système de poussoir (1) pour mécanisme de direction comprenant une crémaillère (3) de direction sur laquelle engrène au moins un pignon d'entraînement, ledit système de poussoir (1) comprenant un poussoir (13) qui est monté mobile au sein d'un carter de poussoir et qui est placé sous la contrainte d'un ressort de rappel (15), de manière à ce que ledit poussoir (13) vienne exercer sur la crémaillère (3), sous l'action dudit ressort de rappel (15), un effort de poussée (F13) qui presse ladite crémaillère (3) contre le pignon d'entraînement, ledit système de poussoir (1) étant caractérisé en ce que le ressort de rappel (15) est au moins en partie noyé dans un bloc amortisseur (20) en matériau élastomère.
摘要:
The invention concerns a method which consists in: filtering the torque signal (c) using a low-pass filter (B) of the first order at a variable cut-off frequency (f) which takes on, respectively, a minimum value or a maximum value depending on whether the amplitude of the torque signal (c) is, respectively, lower or higher than a predetermined threshold; then in producing a signal (J) indicating, respectively, a steering wheel release (J=1) or a steering wheel grip (J=0) depending on whether the amplitude of the filtered torque signal (e) is, respectively, lower or higher than a predetermined threshold.
摘要:
The method consists in: (A) determining in which actual sector (tr_engine) the booster motor is located, a sector of the booster motor being defined by two successive poles; determining a relative angle position (Angle_steerwh_rel) of the steering wheel in relation to the booster motor; (B, C, D) identifying a sector, known as neutral (tr_engine_neutral), in which the booster motor is located when the rotation speeds of the rear wheels, i.e. right (v rear R) and left (v rear L) of the vehicle, are equal; (E) determining an angle offset (angle_offset) of the steering wheel corresponding to a neutral angle position of the steering wheel; determining an absolute angle position (angle_steerwh_absolute) of the steering wheel which is equal to the difference between the relative angle position (angle_steerwh_rel) of the steering wheel and the offset angle (angle_offset) thereof.
摘要:
The invention relates to a power assisted steering system (21) that includes an electric assist motor (22) arranged to assist the manual force exerted by a driver on the steering wheel of the automobile, a processing means (23) arranged to control the electric assist motor (22), the processing means (23) including a means (28) for predetermining a signal (S3) for controlling the electric assist motor on the basis of a first operation signal (S1) determined on the basis of the angular position of the electric assist motor, and a second operation signal (S2) determined on the basis of the measurement or calculation of the angular acceleration of the electric assist motor and the measurement or calculation of the assistance torque output by the electric assist motor.
摘要:
The processing means, which control the power assisted steering motor (8), determine and give consideration to a first steering angle signal (A) determined as a function of the calculation or measurement of the force or torque delivered by the power assisted steering motor (8) and possibly of the steering torque or force applied by the driver to the steering wheel (2), a second steering angle signal (B) determined as a function of the calculation of the measurement of the angular position of the power assisted steering motor (8), a third signal (C) of the "index" type, that is to say of the type emitted for certain angular positions of the steering system (21), a convergence signal (D) indicative of the convergence of the steering angle calculations, and a confirmation signal (E) confirming the calculation of the steering angle, the convergence signal (D) being produced thanks to the signal (C) of "index" type to indicate a confidence level on the estimated steering angle value. The invention can be applied to vehicles that have an automated steering function.