Abstract: A computer for a motor vehicle including at least one main control module intended to manage an onboard system such as a power steering system, which uses a plurality of internal variables representative of the successive life situations of the vehicle, the computer including, in addition to the main control module, an integrated monitoring module that includes an extraction and recording unit, placed under the dependency of a trigger unit in order to extract, from a buffer memory, in case of a detection of a predefined alarm event occurring at a triggering time, one or more recordings, that correspond respectively to one or more internal variables, and that each cover a time interval that extends from a start time that precedes the triggering time to an end time that follows the triggering time, and then to store the recording or recordings in a non-volatile memory.

Abstract: A computer for a motor vehicle including at least one main control module intended to manage an onboard system such as a power steering system, which uses a plurality of internal variables representative of the successive life situations of the vehicle, the computer including, in addition to the main control module, an integrated monitoring module that includes an extraction and recording unit, placed under the dependency of a trigger unit in order to extract, from a buffer memory, in case of a detection of a predefined alarm event occurring at a triggering time, one or more recordings, that correspond respectively to one or more internal variables, and that each cover a time interval that extends from a start time that precedes the triggering time to an end time that follows the triggering time, and then to store the recording or recordings in a non-volatile memory.

Abstract: A motor vehicle power steering system, including a steering column and a power steering motor. The column has an upper part bearing a steering wheel and a lower part acting on a mechanical steering device. A setpoint at which the motor should apply a power assist to the steering column is set on the basis of information concerning the torque exerted on the steering wheel. The information is obtained by measuring angles at the steering wheel and at the lower part of the column, and the setpoint is established by comparing the two angle measurements, taking into account the rigidity of the steering column between the two angle-measuring points.

Abstract: A motor vehicle power steering system, including a steering column and a power steering motor. The column has an upper part bearing a steering wheels and a lower part acting on a mechanical steering device. At setpoint at which the motor should apply a power assist to the steering columns is set on the basis of information concerning the torque exerted on the steering wheel. The information is obtained by measuring angles at the steering wheel and at the lower part of the column, and the setpoint is established by comparing the two angle measurements, taking into account the rigidity of the steering column between the two angle-measuring points.