B60T8/32

Automatically controlled braking system

A braking system for vehicles comprising —a manual actuator device, operable by means of a lever and/or pedal, operatively connected to at least a first braking device acting on a brake disc or drum, so as to exercise a braking action, —an automatic actuator device, operatively connected to said manual actuator device and/or to said first braking device, —at least one command panel which supervises the functioning of the braking system, said command panel being operatively connected to the automatic actuator device and being programmed so that when the manual actuator device is operated, the panel commands the operation of the automatic actuator device so as to be able to: —increase the overall braking action of the braking system, further operating the first braking device or further braking devices provided in said system and acting on further brake discs or drums, —control the braking action of the braking system so as not to further operate the first braking device or further braking devices of the system, —reduce the overall braking action imposed by means of the manual actuator device, directly countering the thrust action exercised on the lever and/or on the pedal.

METHOD AND CONTROL UNIT FOR OPERATING A HYDRAULIC BRAKING SYSTEM, BRAKING SYSTEM, AND MOTOR VEHICLE
20220135015 · 2022-05-05 ·

A method for operating a hydraulic braking system, which includes at least one actuatable actuator for generating a hydraulic brake pressure using brake fluid. A first leakage loss of the brake fluid in the braking system is ascertained as a function of a volume of a pressure chamber of the actuator at a starting pressure at the beginning of a braking process and the volume of the pressure chamber when the starting pressure is reached at the conclusion of the braking process. A second leakage loss of the braking fluid is continuously calculated while the braking process is carried out. The first leakage loss is compared to the second leakage loss for the plausibility check after a braking process was carried out.

SYSTEM AND METHOD REDUCING AIRCRAFT BRAKE WEAR

A system and method are provided for continuous monitoring and controlling of aircraft braking that can reduce brake wear and aircraft operating costs through the retention of carbon brake powder from the brakes or addition of carbon powder in a device mounted with respect to the brake disk stack. The use of carbon powder reduces brake wear by providing small particles between the brake disks, acting as a buffer between the brake disks when the brake stack is clamped together. Moreover, when carbon powder or small particles are used at application, such use reduces the roughness of the carbon surface and reduces the number of large particles from braking off the carbon surface, thereby reducing brake wear. Adaptive or selective braking may be used in conjunction with carbon powder to further reduce carbon brake wear.

INTEGRATED BRAKING DEVICE FOR VEHICLE AND BRAKING METHOD THEREFOR
20220135012 · 2022-05-05 ·

An integrated braking device for a vehicle equipped with wheel brakes includes a reservoir, master cylinder, bi-directional pumps each using hydraulic pressure oil from the reservoir for generating hydraulic pressure in first direction to apply braking force to the wheel brakes or generating hydraulic pressure in opposing second direction to control the hydraulic pressure oil from flowing to the reservoir, a hydraulic motor for driving the bi-directional pumps, inlet valves for controlling a hydraulic pressure from flowing from the bi-directional pumps to the wheel brakes, traction control valves each disposed between the master cylinder and each bi-directional pump to control flow of the hydraulic pressure oil inside the master cylinder, and a braking control unit for braking the vehicle by transmitting a driving signal to solenoid valves in the integrated braking device, the bi-directional pumps, and the hydraulic motor to control a flow of the hydraulic pressure.

Brake actuator interface with trailer brake control

A method for controlling the braking of a towed vehicle by a towing vehicle. The method includes receiving, at or by a brake actuator ECU, deceleration data of the towing vehicle and sensing, using a sensor, a longitudinal deceleration of the towed vehicle. The method also includes generating, at or by the brake actuator ECU, a brake signal based on the deceleration data and the longitudinal deceleration, sending the brake signal from the brake actuator ECU to an electric motor of a brake actuator of the towed vehicle, and applying, by the brake actuator, a hydraulic pressure to brakes of the towed vehicle based on the brake signal.

Automatic emergency braking using a time-to-collision threshold based on target acceleration
11724673 · 2023-08-15 · ·

Techniques and systems are described that enable automatic emergency braking (AEB) using a time-to-collision (TTC) threshold that is based on target acceleration. The TTC may be a combination of a first TTC sub-threshold and a second TTC sub-threshold. The first TTC threshold may be based on a vehicle velocity of a host vehicle and a relative velocity between the host vehicle and a target object. The second TTC sub-threshold may be based on a target acceleration of the target object and a distance between the host vehicle and the target object. By utilizing the target acceleration in the TTC threshold determination, the techniques and systems described herein enable AEB to work as planned to prevent a collision between a vehicle and a target, in a wider variety of environments and situations.

Apparatus, system and method for braking
11318846 · 2022-05-03 · ·

An eddy current brake for a vehicle, the eddy current brake comprising a rotor, and an electromagnet arranged to receive current from an electromechanical energy generating means during braking of the vehicle and to induce an eddy current within the rotor.

AUTOMATED GAIN AND BOOST FOR A BRAKE CONTROLLER
20230249655 · 2023-08-10 ·

The present disclosure includes a system, method, and device related to controlling brakes of a towed vehicle. A brake controller system includes a brake controller that controls the brakes of a towed vehicle based on acceleration. The brake controller is in communication with a speed sensor. The speed sensor determines the speed of a towing vehicle or a towed vehicle. The brake controller automatically sets a gain or boost based on the speed and acceleration.

Brake controller storing deceleration profiles and method using deceleration profiles stored in a brake controller

A brake controller in a vehicle determines braking profiles that may be exercised while operating the vehicle in autonomous or semi-autonomous conditions to decelerate the vehicle based on received commands or that may be exercised automatically in the event of a failure in a communication network of the vehicle or in other systems or components of the vehicle. The braking profiles decelerate the vehicle according to a deceleration profile. The execution of the deceleration profile may be initiated by a single command message received by the brake controller or it may be determined by the brake controller based on vehicle information. A safe state deceleration profile may be preselected by the controlling devices before the occurrence of a failure or an emergency situation, and then executed by the brake controller upon the occurrence of a failure or emergency.

HYBRID BRAKE SYSTEMS AND METHODS
20230249846 · 2023-08-10 · ·

A braking system for an aircraft may comprise: a brake assembly including a brake stack; an electric braking subsystem having an electric brake actuator configured to operate the brake assembly; and a controller in operable communication with the electric braking subsystem, the controller configured to perform a wear depth measurement process, the wear depth measurement process comprising: determine a reference position of the electric brake actuator; command the electric brake actuator to extend toward the brake stack; receive a force measurement from a load cell in response to the electric brake actuator contacting the brake stack; determine a linear travel distance of the electric brake actuator based on an end position determined from the force measurement; and determine a wear depth based on calculating a difference between the linear travel distance and a prior linear travel distance of the electric brake actuator.