Braking supervision
AssigneeRENAULT s.a.s.
InventorsGuillermo Pita-Gil, Hamid Azzi, Sofiane Amara
Life of this patent
Estimating the term…
Abstract
A method and control system for a vehicle including a regenerating braking mechanism and a complementary braking mechanism, the method including: receiving at least one vehicle acceleration measurement value, at least one torque value applied by the regenerating braking system, and at least one complementary braking set value for the complementary braking mechanism, wherein the at least one value corresponds to at least one respective measurement moment during a braking transition; and estimating an efficiency coefficient of the complementary braking mechanism from the at least one received value.
Claims9
A method for monitoring braking for a vehicle including a regenerative brake and a complementary brake, comprising:
- receiving at least one vehicle acceleration measurement value from at least one measurement being performed during a braking transition during which the regenerative brake and the complementary brake apply a braking force to the vehicle;
- for each received acceleration value, receiving a torque value applied by the regenerative brake and a complementary braking set point value intended for the complementary brake corresponding to an instant of measurement of the acceleration value;
- and
- estimating a coefficient of efficiency of the complementary brake on the basis of the at least one received acceleration measurement value, of the at least one received torque value applied by the regenerative brake, and of the at least one received complementary braking set point value,
- wherein a plurality of acceleration measurement values, a plurality of torque values applied by the regenerative brake, and a plurality of complementary braking set point values are received, and
- wherein a statistical value of the coefficient of efficiency of the complementary brake is estimated according to a recursive least squares method with a variable omission factor.
A braking monitoring device for a vehicle including a regenerative braking means and a complementary braking means, comprising:
- means for receiving at least one vehicle acceleration measurement value from at least one measurement being performed during a braking transition during which the regenerative braking means and the complementary braking system apply a braking force to the vehicle;
- means for receiving at least one torque value applied by the regenerative braking means and at least one complementary braking set point value intended for the complementary braking means, the at least one torque and set point values corresponding to at least one measurement instant corresponding to the at least one acceleration value;
- and
- processing means for estimating a coefficient of efficiency of the complementary braking means on the basis of the at least one received acceleration measurement value, of the at least one received torque value applied by the regenerative braking means, and of the at least one received complementary braking set point value,
- wherein a plurality of acceleration measurement values, a plurality of torque values applied by the regenerative braking means, and a plurality of complementary braking set point values are received, and
- wherein a statistical value of the coefficient of efficiency of the complementary braking means is estimated by the processing means according to a recursive least squares method with a variable omission factor.
A braking monitoring device for a vehicle including a regenerative brake and a complementary brake, comprising:
- a microcontroller to receive at least one vehicle acceleration measurement value, at least one torque value applied by the regenerative brake, and at least one complementary braking set point value intended for the complementary brake, the at least one measurement being performed during a braking transition during which the regenerative brake and the complementary brake apply a braking force to the vehicle, and the at least one torque and set point values corresponding to at least one measurement instant corresponding to the at least one acceleration value;
- and
- processing circuitry to estimate a coefficient of efficiency of the complementary brake on the basis of the at least one received acceleration measurement value, of the at least one received torque value applied by the regenerative brake, and of the at least one received complementary braking set point value,
- wherein a plurality of acceleration measurement values, a plurality of torque values applied by the regenerative brake, and a plurality of complementary braking set point values are received, and
- wherein a statistical value of the coefficient of efficiency of the complementary brake is estimated by the processing circuitry according to a recursive least squares method with a variable omission factor.
Dependencies are inferred from the claim text.