Parallel relay and piston valve groups balance precise pneumatic brake pressure control with fewer switching cycles and longer valve life.
A second trailer ECU modulates brake control pressure during electrical faults to preserve gradable braking, stability control, and ABS response.
A unified rail brake control loop adjusts braking force from real-time friction and slip signals to reduce stopping-distance variation.
Electronic release bolt control adjusts parking brake spring compression during air-pressure loss, enabling safer remote brake release.
Automatic pressure reduction in the service brake circuit vents spring brake cylinders to engage the holding brake without driver action.
Circuit pressure change and piston movement reveal which brake pressure reducing valve has failed, enabling mode switching to maintain braking.
Limit switches route motor back-EMF for dynamic braking before brake engagement, improving actuator stop accuracy and reducing brake wear.
An accumulator with control, check, and relief valves supplies backup flow to steering and brake circuits when pump output is inadequate.
A third compressed air circuit creates backup brake control pressure, cutting module complexity while preserving pneumatic redundancy.
Concurrent synchronization keeps parking brake actuator movement responsive while correcting non-volatile memory write errors and position data.
A form-fitting spindle lock replaces welding in brake actuation, cutting assembly cost while preserving robust torque transmission.
A dual hydraulic pressure supply with piston and pump backup stabilizes electric braking during component faults and low-force conditions.
Pressure and movement checks on the power brake pressure generator reveal hidden hydraulic brake defects before they affect braking.
When the brake-actuation hydraulic unit fails, the ESC pump and regenerative motor torque maintain braking support and comfort.
A piezoelectric pump and shared valve layout sustain emergency and parking brake pressure without a large accumulator, cutting brake system mass.
Briefly reversing rotor direction when speed drops to zero helps a piston pump motor overcome load torque and resume reliable operation.
A safety unit monitors brake application position and interrupts control signals to block unsafe maintenance movement in railway brake actuators.
Existing brake-circuit pressure sensors verify select-high valve switching without added secondary-circuit sensors, improving monitoring reliability.
When wheel speed sensors fail, the ECU switches ESC modes and applies targeted wheel braking to preserve vehicle stability.
Primary and secondary brake motors with shared control devices preserve braking power after failures while limiting brake-by-wire complexity and cost.
Motor current or rpm change is used to detect pad-disc contact and set pad origin, preventing brake drag without costly sensors.
A no-load inrush current model separates startup current from driving current, improving clamping force estimation and actuator fault diagnosis.
Electronic brake actuation replaces pedal-to-cylinder linkage, while a separate pressure source preserves braking under component faults.
Using trailer connection status and load, the system authorizes inflation early enough to reach departure pressure without added waiting time.
Software-controlled proportional valve throttling gives primary tractor hydraulic functions priority when pump capacity is exceeded.
Two independent parking brake controllers use timed backup activation to ensure brake application when the primary controller fails.
A radially compliant piston-nut connection absorbs assembly deviation, reducing radial load and uneven wear in electric cylinders.
Radial float between the piston and nut absorbs assembly misalignment, preventing uneven wear while easing electric cylinder assembly.
A radially compliant piston-nut joint absorbs assembly deviation in an electric cylinder, preventing uneven wear and easing precision assembly.
A cable-linked handle unlocks an electronic brake without external tools, restoring vehicle mobility and simplifying maintenance during power loss.
An auxiliary air passage and pressure-responsive valve release a parking brake after main air failure and reset automatically when pressure returns.
Continuously controlled service brakes on each sprocket hold target speed downhill without oversizing electric drive motors.
Pressure-based valve diagnostics let a secondary brake controller verify parking brake function and flag solenoid faults before primary controller failure.