B60T13/74

METHOD AND CONTROL DEVICE FOR CONTROLLING A PARKING BRAKE FOR A VEHICLE, AND PARKING BRAKE SYSTEM FOR A VEHICLE
20210402970 · 2021-12-30 ·

A method for controlling a parking brake for a vehicle, including: reading in a request signal which represents a requested activation of the parking brake, and travel data of the vehicle, wherein the parking brake has at least one spring mechanism and is assigned to at least one axle of the vehicle; and generating an activation signal, for activating the parking brake, using the request signal and the travel data, wherein the activation signal brings about pulsed activation of the parking brake for an adjustable time period, to control the parking brake. Also described are a related control apparatus, a parking brake apparatus, and a computer readable medium.

METHOD AND DEVICE FOR OPERATING A BRAKE SYSTEM, BRAKE SYSTEM, AND VEHICLE
20210402968 · 2021-12-30 ·

A method for operating a brake system of a vehicle, in particular, of a motor vehicle. The brake system includes at least one electric actuator, in particular, a brake booster, which may be driven to generate a braking force, the actuator being controllable by an autonomous driving system, and as a function of manipulation of a brake pedal of the vehicle; and an emergency braking action being initiated, when the actuator is driven both by the autonomous driving system and by manipulation of a brake pedal. The control by the autonomous driving system is superimposed with a varying validation signal, a differential travel between an actuator element of the actuator and the brake pedal is monitored, and the driving of the actuator via manipulation of the brake pedal during the control by the autonomous driving system is detected, if the differential travel varies.

ELECTROMECHANICAL ACTUATOR FOR A VEHICLE BRAKE WITH INCREASED SERVICE LIFE

An electromechanical actuator for a motor vehicle brake, comprising an electric motor absorbing a nominal rated current (In), a screw-and-nut movement converter including a screw with an axis (AX) extending in a longitudinal direction and a nut supported by the screw, and comprising at least one elastic return member for varying the resistance to forward motion in the longitudinal direction of an element being transferred between the nut and the screw at a predetermined position, in order to modify the nominal rating (In) of the current flowing through the motor while the element is being transferred to the predetermined position.

CONTROL DEVICE OF BRAKE SYSTEM
20220227340 · 2022-07-21 ·

A control device of a brake system, according to the present invention, includes, as redundancy, a first control unit for controlling the valve, the motor and the like of a brake system by receiving a sensor unit input, and a second control unit capable of performing the same function as the first control unit when the first control unit malfunctions, and thus the present invention can control the brake system of a vehicle by using the second control unit in an emergency situation in which the first control unit does not normally operate.

HYDRAULIC BRAKE SYSTEM

A hydraulic brake system for a vehicle, including: a wheel brake device configured to generate a braking force based on a pressure of a working fluid; a first brake system including a high-pressure source device including an accumulator and a first pump device that is driven intermittently such that a pressure of the working fluid in the accumulator is not lower than a set lower limit pressure and not higher than a set upper limit pressure; a second brake system including a second pump device; and a main power source that supplies electricity to the first and second brake systems, wherein the hydraulic brake system includes an auxiliary power source that supplies electricity to the first brake system when a failure occurs in the main power source, and wherein the first pump device is continuously driven when the failure occurs irrespective of the pressure in the accumulator.

ELECTRONIC PARKING BRAKE SYSTEM AND CONTROL METHOD THEREOF
20220227345 · 2022-07-21 ·

Disclosed is an electronic parking brake system including an electronic front-wheel parking brake provided on a front wheel side of a vehicle and configured to be operated by a front wheel motor, an electronic rear-wheel parking brake provided on a rear wheel side of the vehicle and configured to be operated by a rear wheel motor, a motor driving device configured to drive at least one of the front wheel motor and the rear wheel motor, and a controller electrically connected to the motor driving device, wherein the controller receives operation mode selection information in which an operation mode for operating at least one of the electronic front-wheel parking brake and the electronic rear-wheel parking brake is selected, and controls the motor driving device to operate at least one of the electronic front-wheel parking brake and the electronic rear-wheel parking brake in response to the operation mode of the received operation mode selection information.

Control device and method for increasing at least a brake pressure in at least one wheel-brake cylinder of a brake system of a vehicle
11208087 · 2021-12-28 · ·

A control device is described for a brake system of a vehicle, having an electronics device that is designed to operate a motorized piston-cylinder device in a pressure buildup mode and simultaneously to control or to hold at least one first separating valve, via which at least one wheel brake cylinder is connected to a master brake cylinder, in its closed state, and to control or to hold at least one second separating valve, via which the at least one wheel brake cylinder is connected to the motorized piston-cylinder device, in its open state, and to operate the motorized piston-cylinder device in a suctioning mode, and at the same time to control the at least one second separating valve to its closed state, the electronics device being in addition designed to control the at least one first separating valve to its open state at least at times during the suctioning mode. A method is also described for increasing at least one brake pressure in at least one wheel brake cylinder of a brake system of a vehicle.

Electrohydraulic power pressure generator
11208088 · 2021-12-28 · ·

An electrohydraulic power pressure generator for a vehicle braking system which includes an electric motor, a planetary gear, a screw drive, and a piston cylinder unit. To prevent the brake fluid from entering the electric motor, there is a drive shaft between the electric motor and the planetary gear which is rotatably fixedly connected to a motor shaft via a slot coupling and which is sealed by a radial shaft sealing ring.

REDUNDANT BRAKING SYSTEM AND METHOD FOR OPERATING SUCH A BRAKING SYSTEM
20210394721 · 2021-12-23 ·

A brake system for a vehicle for acquiring at least one status variable for controlling the brake system, including: a primary control unit for controlling the brake system by at least one actuator and taking into account the at least one status variable; and a redundancy control unit for controlling the brake system by part of the at least one actuator and taking into account part of the at least one status variable, in which the brake system is configured such that, when at least one switch-over condition is satisfied, the brake system is no longer controlled exclusively by the primary control unit and is at least partially controlled by the redundancy control unit. Also described are a related method and a computer readable medium.

REDUNDANT BRAKING SYSTEM AND METHOD FOR OPERATING SUCH A BRAKING SYSTEM
20210394721 · 2021-12-23 ·

A brake system for a vehicle for acquiring at least one status variable for controlling the brake system, including: a primary control unit for controlling the brake system by at least one actuator and taking into account the at least one status variable; and a redundancy control unit for controlling the brake system by part of the at least one actuator and taking into account part of the at least one status variable, in which the brake system is configured such that, when at least one switch-over condition is satisfied, the brake system is no longer controlled exclusively by the primary control unit and is at least partially controlled by the redundancy control unit. Also described are a related method and a computer readable medium.