Back to results
US 12,420,754 B2Granted
Brake control device and brake control method
AssigneeMitsubishi Electric Corporation
InventorShumpei Onodera
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeMitsubishi Electric Corporation
InventorShumpei Onodera
Estimating the term…
In a railway vehicle, a brake control device controlling a first brake device that presses a friction material against a wheel and a second brake device not using the friction material includes: a wheel load estimation unit estimating a wheel load-based on a wheel speed and a brake force applied to the wheel by the friction material; a friction surface state quantity estimation unit estimating a current friction coefficient of the friction material from a state of a friction surface thereof based on the wheel load, the wheel speed, and a brake force command, and outputting a mirror-surfacing signal indicating the friction surface is in a mirror-surfaced state when the friction coefficient is less than a first threshold value; and a brake control unit controlling operations of the first and second brake devices based on the brake force command and presence or absence of the mirror-surfacing signal.
A brake control device for controlling a first brake device that presses a friction material against a wheel to obtain a braking force and a second brake device that does not use the friction material, in a railway vehicle, the brake control device comprising:
A brake control method for a brake control device to control a first brake device that presses a friction material against a wheel to obtain a braking force and a second brake device that does not use the friction material, in a railway vehicle, the brake control method comprising:
Dependencies are inferred from the claim text.