B60T8/326

ELECTRONIC BRAKE SYSTEM
20220017051 · 2022-01-20 ·

Provided is an electronic brake system including, a master cylinder including a first piston connected to a pedal and a second piston configured to partition a first master chamber and a second master chamber provided in front of the first piston, a reservoir in which a braking fluid is stored, the reservoir connected to the first master chamber by a first reservoir passage, and connected the second master chamber by a second reservoir passage, a hydraulic pressure supply device configured to generate a hydraulic pressure by an electrical signal output in response to a displacement of the pedal, a first connection line configured to connect the first master chamber to a first hydraulic circuit, a second connection line configured to connect the second master chamber to a second hydraulic circuit, and a third connection line configured to connect the hydraulic pressure supply device to the reservoir, wherein a mechanical part including the reservoir and the master cylinder is installed in a first block, and an electronic part including the hydraulic pressure supply device and the first hydraulic circuit, the second hydraulic circuit is installed in a second block, and each of the first connection line, the second connection line, and the third connection line is provided to connect the first block to the second block.

PRESSURE GENERATING DEVICE AND OPERATING METHOD COMPRISING AN ELECTRICALLY DRIVEN DUAL-ACTION RECIPROCATING PISTON
20210339727 · 2021-11-04 ·

A pressure generating device may comprise a piston-cylinder unit having a bilaterally acting piston with two effective surfaces defining two respective, separate working spaces in a sealing manner. Each working space is connected via a hydraulic line to a hydraulic circuit, wherein at least one hydraulic chamber of a consumer is connected to each hydraulic circuit, and wherein a drive drives the piston. Each working space may be in communication with a reservoir for hydraulic medium, via a respective hydraulic line having a respective switching valve. Alternatively, one or both working spaces may be in communication with a reservoir for hydraulic medium via a hydraulic line, with a switching valve in one or both hydraulic lines, and/or a respective outlet valve may be associated with one or more hydraulic chambers of the consumer, and a further connecting line having a switching valve may connect the pressure chambers and/or hydraulic lines.

BRAKE FLUID PRESSURE CONTROL APPARATUS
20230331208 · 2023-10-19 · ·

In a brake fluid pressure control apparatus, a sensing device is integrally fixed to a master piston. The sensing device including the body to be sensed, which may include a magnet, and a sensing body, which may include a sensor. The sensing bodying sensing an axial position of the master piston without relative movement, that is, without providing play. This arrangement improves the sensing precision of the sensing device. Since it is not necessary to provide a member separate from the master piston in order to retain the body to be sensed, it is possible to achieve downsizing of the brake fluid pressure control apparatus.

FAST REPLENISHING BRAKE SYSTEM
20230311833 · 2023-10-05 ·

A brake system includes a source of pressurized hydraulic fluid, a plurality of wheel brakes, and an iso/dump control valve arrangement associated with at least one wheel brake. A reservoir is connected to the source of pressurized fluid and to the iso/dump control valve arrangement. A fast-replenishing circuit includes a FR iso valve, a venting valve, and a replenishing check valve. The venting and replenishing check valves are interposed between the source of pressurized fluid and the reservoir. The FR iso valve is interposed between the source of pressurized fluid and the iso/dump control valve arrangement. When the source of pressurized fluid reaches a predetermined stroke position, the FR iso valve is energized to restrict movement of fluid from at least one iso/dump control valve arrangement to the source of pressurized fluid. The source of pressurized fluid is re-stroked to draw fluid from the reservoir through the replenishing check valve.

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.

Braking control device and braking control method of construction machine

A brake control apparatus for construction machinery, includes first and second brake lines through which a brake oil is supplied to a front brake device and a rear brake device of the construction machinery, first and second proportional flow control valves installed respectively in the first and second brake lines to control a flow rate of the brake oil in proportion to inputted first and second brake control signals, a sensing portion configured to detect work and travel information of the construction machinery, and a controller configured to output the first and second brake control signals in response to a brake manipulation signal of a driver, and configured to control independently the first and second proportional flow control valves based on the work and travel information of the construction machinery detected by the sensing portion.

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.

Electronic hydraulic brake device
11772623 · 2023-10-03 · ·

An electronic hydraulic brake device includes a main braking unit configured to provide a braking fluid to a plurality of wheel cylinder units by driving of a motor; a storage unit connected to the main braking unit and configured to store the braking fluid; and an auxiliary braking unit connected to the main braking unit and the storage unit and configured to provide the braking fluid to some of the plurality of wheel cylinder units when an operation error of the main braking unit occurs, so that braking of a vehicle may be stably performed by the auxiliary braking unit even though the operation error of the main braking unit occurs.

BRAKE-SHIFT INTEGRATED SYSTEM FOR WIRE-CONTROLLED VEHICLES BASED ON MACHINE-HYDRAULIC COMPOUND AND CONTROL METHOD THEREOF
20230278536 · 2023-09-07 · ·

A brake-shift integrated system for wire-controlled vehicles based on machine-hydraulic compound and a control method thereof are provided. The brake-shift integrated system includes a shift module, a brake-by-wire module, a power distribution module and a control assembly module. The shift module includes a shift booster sub-module and a shift actuator sub-module. The shift booster sub-module is used to store and reuse the braking force to assist the shift. The shift actuator sub-module is used to implement mechanical automatic gearshift. The brake-by-wire module is used to implement the brake-by-wire process. The power distribution module is used for motor torque distribution. The control assembly module reads the shift signal, brake signal and current signal from each motor controller to control the operation of the shift motor and brake motor, the locking and releasing of the brake and the opening and closing of the solenoid valve.

System and method for detecting brake fading in a vehicle

A system (100) and a method (300) for detecting brake fading in a vehicle. The system (100) includes at least one sensor (140-143) configured to gather data about at least one brake (110-113) in a vehicle (105), a braking system (130), a braking system sensor (145) configured to gather data about the braking system (130), and an electronic controller (150) configured to receive data from at least one selected from the group consisting of the at least one sensor (140-143) and the braking system sensor (145), and determine, based on the data, a level of brake fading of the vehicle (105). The method (300) comprises receiving (305), with an electronic controller (150), data from at least one of the group consisting of at least one sensor (140-143) and a braking system sensor (145); and determining (310), with the electronic controller (150), a level of brake fading of a vehicle (105) based upon the data.