B60T8/4872

Initialization method for electro-mechanical brake
09758141 · 2017-09-12 · ·

An initialization method for an EMB may include: opening an in-valve for controlling a flow path through which brake oil is introduced from a master cylinder, closing an out-valve for controlling a flow path through which the brake oil is transferred to an accumulator part, and driving a motor to move a master piston forward; when the master piston is moved by a preset distance after coming in contact with a slave piston which is brought in contact with an inner pad, closing the in-valve and driving the motor to move the master piston backward; when the contact between the master piston and the slave piston is released, determining whether a gap between the master piston and the slave piston is equal to or more than a preset gap; and when the gap is equal to or more than the preset gap, ending initialization of the EMB.

Hydraulic motor vehicle brake systems and a control device system therefor, methods for operating hydraulic motor vehicle brake systems and computer program for carrying out the methods

A hydraulic motor vehicle brake system comprises a vehicle dynamic control system which comprises a first brake circuit which acts on at least one first wheel brake, and a second brake circuit which acts on at least one second wheel brake, the first brake circuit comprising a first hydraulic pressure generator and the second brake circuit comprising a second hydraulic pressure generator, which can be actuated electrically for control interventions. Furthermore, the hydraulic motor vehicle brake system comprises an electrically actuable third hydraulic pressure generator, and a controller which is configured to detect failure of at least one of the two brake circuits and a requirement of a control intervention on the at least one brake circuit, to actuate at least the third hydraulic pressure generator for assisting the control intervention.

Brake hydraulic pressure controller
11767002 · 2023-09-26 · ·

[Problem] A brake hydraulic pressure controller capable of being formed with a relatively large damper chamber while suppressing enlargement of a housing is provided. [Means for Resolution] The brake hydraulic pressure controller includes: a motor having a motor shaft; a skew plate fixed to a tip of the motor shaft and arranged to be inclined with respect to an axial direction of the motor shaft; and a pump element driven by rotation of the motor shaft and the skew plate. The pump element has: a piston that reciprocates in parallel with the axial direction of the motor shaft in conjunction with the rotation of the skew plate; an accommodation chamber that accommodates a part of the piston and to which a brake fluid is introduced; a release valve that releases the brake fluid from the accommodation chamber; and a pressure damper chamber that is provided in a reciprocal direction of the piston and into which the brake fluid released from the release valve flows.

DEVICE FOR A HYDRAULIC ACTUATING SYSTEM
20230294655 · 2023-09-21 ·

A device for a hydraulic actuating system, e.g., a motor vehicle brake, a clutch or a gear selector, may include the following components arranged in one housing, forming a main module: at least one pressure supply device driven by an electric motor drive, and a valve arrangement comprising at least one solenoid valve. The device may further include an electrical control unit (ECU) and valve output stages and sensors. The main module may be electrically and/or hydraulically connected to at least one further system component, which system component may include and actuating device and a travel simulator.

DEVICE FOR A HYDRAULIC ACTUATING SYSTEM
20230286483 · 2023-09-14 ·

A device for a hydraulic actuating system, e.g., a motor vehicle brake, a clutch or a gear selector, may include the following components arranged in one housing, forming a main module: at least one pressure supply device driven by an electric motor drive, and a valve arrangement comprising at least one solenoid valve. The device may further include an electrical control unit (ECU) and valve output stages and sensors. The main module may be electrically and/or hydraulically connected to at least one further system component, which system component may include and actuating device and a travel simulator.

Signal-processing device for a vehicle having an ABS unit, vehicle, signal-processing method for a vehicle, computer programme and control unit
11745709 · 2023-09-05 · ·

The invention relates to a signal-processing device (402) for a vehicle having an ABS unit (404) and multiple wheels, each of which is assigned a sensor (S1, S2, S3, S4) for wheel signal generation. The signal-processing device (402) is designed to detect (602) a failure of a wheel signal, to form (604) a substitute signal for the failed wheel signal using the wheel signal of at least one sensor assigned to a wheel that is not affected by the failure, and to supply (606) the substitute signal to the ABS unit (404). The invention also relates to an ABS system (400) having the signal-processing device (402) and an ABS unit (404), a vehicle having the ABS system (400), a signal-processing method for a vehicle having an ABS unit (404), a computer programme having computer code for carrying out the signal-processing method, as well as a control unit containing the computer programme.

DEVICE FOR A HYDRAULIC ACTUATING SYSTEM
20230294654 · 2023-09-21 ·

A device for a hydraulic actuating system, e.g., a motor vehicle brake, a clutch or a gear selector, may include the following components arranged in one housing, forming a main module: at least one pressure supply device driven by an electric motor drive, and a valve arrangement comprising at least one solenoid valve. The device may further include an electrical control unit (ECU) and valve output stages and sensors. The main module may be electrically and/or hydraulically connected to at least one further system component, which system component may include and actuating device and a travel simulator.

Method for operating a regenerative braking system of a vehicle and control unit for a regenerative braking system of a vehicle

A method for operating a regenerative braking system of a vehicle by activating at least one motor employable in generator mode taking into consideration a first information with regard to a requested setpoint total braking torque and a second information with regard to an available generator braking torque which is maximally executable by the at least one motor employable in generator mode, if the setpoint total braking torque exceeds a threshold value and/or a piece of warning information regarding a transition to a backup level that is potentially imminent or has occurred of the regenerative braking system, even if the setpoint total braking torque is less than or equal to the maximally executable available generator braking torque, sufficient brake fluid is transferred via at least one hydraulic actuator to a wheel brake cylinder of the regenerative braking system that an air gap of the particular wheel brake cylinder is closed.

METHOD FOR CONTROLLING THE BRAKING POWER IN AN ELECTROHYDRAULIC BRAKING SYSTEM OF A MOTOR VEHICLE
20210276523 · 2021-09-09 ·

A method for controlling the braking power in an electrohydraulic braking system of a transportation vehicle which includes initiating a braking process; detecting a current state of the electrohydraulic braking system; increasing the braking pressure based on the current state of the electrohydraulic braking system, wherein braking pressure is built up more rapidly by targeted, staggered supply of braking pressure to individual parts of the braking system.

CONTROL DEVICES FOR MOTORIZED PRESSURE BUILD-UP DEVICES AND METHOD FOR TRANSMITTING AT LEAST ONE PIECE OF INFORMATION BETWEEN TWO MOTORIZED PRESSURE BUILD-UP DEVICES
20210245721 · 2021-08-12 · ·

A control device for a first motorized pressure build-up device of a braking system of a vehicle. The control device is designed to output at least one first piece of information to an activation device of a second motorized pressure build-up device of the braking system by, under consideration of the respective first piece of information, a first motor activatable in such a way that a pressure prevailing in at least one partial volume of the braking system is varied in accordance with a pressure change signal, which is interpretable as the respective first piece of information for the activation device using a second pressure sensor unit of the second motorized pressure build-up device.