B60T1/093

Liquid-resistance braking system
10794438 · 2020-10-06 ·

A braking system, including a damper and a brake controller. The damper includes: a sealed gearbox including an inner chamber, at least one pair of engaged gears mated with the inner chamber of the gearbox, and a brake fluid storage box. The at least one pair of engaged gears include a driving gear. A first flowing channel and a second flowing channel are provided on both sides of the gearbox of the at least one pair of engaged gears, respectively. The first flowing channel and the second flowing channel include a first extracting outlet and a second extracting outlet, respectively, which are both disposed on the gearbox. The brake fluid storage box includes a first joint adapting to communicate with the first extracting outlet and a second joint adapting to communicate with the second extracting outlet. The brake controller includes at least one braking switch valve.

Electro-hydrostatic brake control

An electro-hydrostatic brake system includes a motor controller configured to receive a brake command, a motor in electronic control communication with the motor controller, and a pump mechanically coupled to the motor. In various embodiments, the electro-hydrostatic brake system further includes a hydraulic tank fluidly coupled in fluid providing communication with the pump, a hydraulic pressure rail fluidly coupled in fluid receiving communication with the pump, and a brake actuator in fluid communication with the hydraulic pressure rail and configured to exert a braking force on a wheel, wherein the braking force is directly modulated by the motor and/or the pump.

METHOD FOR LEARNING BRAKING STEP THRESHOLD VALUES OF A SUSTAINED-ACTION BRAKE OPERATED IN BRAKING STEPS, AND BRAKING SYSTEM
20200172062 · 2020-06-04 ·

A method for learning braking step threshold values of a sustained-action brake includes detecting a braking requirement setpoint, controlling the sustained-action brake with the braking requirement setpoint to generate a braking effect variable of the sustained-action brake, and detecting a sustained-action brake actual braking effect variable and a maximum sustained-action brake braking effect. The method additionally includes forming a braking effect variable coefficient that characterizes a ratio of the sustained-action brake actual braking effect variable and the maximum sustained-action brake braking effect variable that results from control of the sustained-action brake with the braking requirement setpoint, and assigning the braking effect variable coefficient to a braking step of the sustained-action brake such that each braking step is assigned only one braking effect variable. Additionally, the method includes storing the braking requirement setpoint that results in the braking effect variable coefficient.

Work vehicle with remote brake release

The present disclosure is directed to a braking system for a work vehicle having hydraulically-actuated brakes. The braking system includes a primary release valve, a secondary release valve, and at least one braking mechanism having one or more brake springs. The braking mechanism(s) is hydraulically coupled to the primary release valve and the secondary release valve via one or more hydraulic lines. As such, during full-power operation of the work vehicle, when the brakes are to be released, the primary release valve is energized so as to overcome a valve biasing spring, thereby shifting the primary release valve so as to direct pressurized hydraulic fluid to the braking mechanism(s). Further, when the brakes are to be applied, the primary release valve is inactive so as to allow the hydraulic fluid to flow away from the braking mechanism(s) to a primary reservoir such that the one or more brake springs compress the braking mechanism(s). Alternatively, when power is lost to the work vehicle, the secondary release valve bypasses the primary release valve and directs pressurized hydraulic fluid to the braking mechanism(s) to release the brakes.

ELECTRO-HYDROSTATIC BRAKE CONTROL

An electro-hydrostatic brake system includes a motor controller configured to receive a brake command, a motor in electronic control communication with the motor controller, and a pump mechanically coupled to the motor. In various embodiments, the electro-hydrostatic brake system further includes a hydraulic tank fluidly coupled in fluid providing communication with the pump, a hydraulic pressure rail fluidly coupled in fluid receiving communication with the pump, and a brake actuator in fluid communication with the hydraulic pressure rail and configured to exert a braking force on a wheel, wherein the braking force is directly modulated by the motor and/or the pump.

Hydraulic cylinder retarder
10427660 · 2019-10-01 ·

A hydraulic cylinder retarder includes a hydraulic cylinder mechanism, a hydraulic oil conveying mechanism and a hydraulic oil valve mechanism. A piston component of the hydraulic cylinder mechanism is connected to a transmission device. Resistance to the piston movement of the hydraulic cylinder mechanism is generated by the hydraulic oil conveying mechanism and the hydraulic oil valve mechanism, so as to reduce the operation speed of the transmission device.

Hydraulic cylinder retarder
10427660 · 2019-10-01 ·

A hydraulic cylinder retarder includes a hydraulic cylinder mechanism, a hydraulic oil conveying mechanism and a hydraulic oil valve mechanism. A piston component of the hydraulic cylinder mechanism is connected to a transmission device. Resistance to the piston movement of the hydraulic cylinder mechanism is generated by the hydraulic oil conveying mechanism and the hydraulic oil valve mechanism, so as to reduce the operation speed of the transmission device.

LIQUID-RESISTANCE BRAKING SYSTEM
20190048948 · 2019-02-14 ·

A braking system, including a damper and a brake controller. The damper includes: a sealed gearbox including an inner chamber, at least one pair of engaged gears mated with the inner chamber of the gearbox, and a brake fluid storage box. The at least one pair of engaged gears include a driving gear. A first flowing channel and a second flowing channel are provided on both sides of the gearbox of the at least one pair of engaged gears, respectively. The first flowing channel and the second flowing channel include a first extracting outlet and a second extracting outlet, respectively, which are both disposed on the gearbox. The brake fluid storage box includes a first joint adapting to communicate with the first extracting outlet and a second joint adapting to communicate with the second extracting outlet. The brake controller includes at least one braking switch valve.

VEHICLE WITH A RETARDER BRAKE DEVICE, AND CORRESPONDING BRAKING METHOD
20240286592 · 2024-08-29 ·

A vehicle includes a continuous braking device. The continuous braking device includes a non-firing piston engine which can be drivingly coupled to a drive train shaft of the vehicle and is configured, during operation, for conveying air from an air inlet of the piston engine to an air outlet of the piston engine and for thereby compressing the air and for causing deceleration of the vehicle by performing compression work.

VEHICLE WITH A RETARDER BRAKE DEVICE, AND CORRESPONDING BRAKING METHOD
20240286592 · 2024-08-29 ·

A vehicle includes a continuous braking device. The continuous braking device includes a non-firing piston engine which can be drivingly coupled to a drive train shaft of the vehicle and is configured, during operation, for conveying air from an air inlet of the piston engine to an air outlet of the piston engine and for thereby compressing the air and for causing deceleration of the vehicle by performing compression work.