公开(公告)号：US20240092330A1

公开(公告)日：2024-03-21

申请号：US18038270

申请日：2021-11-22

Applicant: HITACHI ASTEMO FRANCE

Inventor： Abdessamed RAMDANE ,  Dimitri DELMEIRE ,  Antony AUGUSTE

IPC: B60T13/74 ,  B60T8/172 ,  B60T8/1761 ,  B60T8/32

CPC classification number: B60T13/741 ,  B60T8/172 ,  B60T8/1761 ,  B60T8/3255 ,  B60T2220/04

Abstract: A method for controlling the tightening torque of an electromechanical brake for a motor vehicle, the brake including an electric motor provided with a rotary shaft intended to drive mechanical brake-clamping mechanisms. The method includes steps of acquiring data from a wheel speed sensor that takes a characteristic measurement of the speed of at least one of the wheels of the vehicle, determining, according to the data from the wheel speed sensor, a deceleration indicator characteristic of the acceleration of the vehicle, regulating the tightening torque according to the deceleration indicator.

公开(公告)号：US20240294159A1

公开(公告)日：2024-09-05

申请号：US18573509

申请日：2022-06-23

Applicant: HITACHI ASTEMO FRANCE

Inventor： Carlos Eduardo RAMIREZ HERNANDEZ ,  Abdessamed RAMDANE

IPC: B60T13/74 ,  B60T17/22

CPC classification number: B60T13/741 ,  B60T17/221

Abstract: A method for adjusting the clamping force exerted by an electromechanical brake of a motor vehicle, the brake including an electric motor provided with a rotating shaft which is intended to drive a mechanical brake-application mechanism, the electric motor being controlled by a PWM-type voltage controller, in which the rotational speed of the motor is estimated from an estimate of the motor resistance and an estimate of the motor constant, and then the clamping force is determined from the estimate of the rotational speed of the motor, wherein the estimate of the motor resistance is updated during an inactive phase with no voltage control.

公开(公告)号：US20240149847A1

公开(公告)日：2024-05-09

申请号：US18279918

申请日：2022-03-03

Applicant: HITACHI ASTEMO FRANCE

Inventor： Samy AKOURTAM ,  Carlos Eduardo RAMIREZ HERNANDEZ ,  Dimitri DELMEIRE ,  Abdessamed RAMDANE

IPC: B60T8/88 ,  B60T8/92 ,  B60T13/74

CPC classification number: B60T8/885 ,  B60T8/92 ,  B60T13/741 ,  B60T2270/402 ,  B60T2270/403

Abstract: A braking system for a motor vehicle including a main braking circuit, an auxiliary electric braking circuit configured to perform parking braking, a first electronic control device which controls i) the main braking circuit to actuate a first braking member and a second braking member, and ii) in the auxiliary electric braking circuit, a first electric actuator of the first braking member, and a second electronic control device which controls, in the auxiliary electric braking circuit, a second electric actuator of the second braking member. A motor vehicle including such a braking system and to methods for controlling such a braking system.