公开(公告)号：US20250115219A1

公开(公告)日：2025-04-10

申请号：US18836059

申请日：2023-03-22

Applicant: DELLNER BUBENZER AB

Inventor： Viktor PRIM

IPC: B60T8/17 ,  B60T8/171 ,  B60T8/172 ,  B60T8/32 ,  B60T8/58 ,  B60T13/74 ,  B60T17/22 ,  B61H5/00 ,  B61H13/00

Abstract: A rail vehicle (100) has a brake system with a brake unit (200) configured to receive a brake command (cmdB) and response thereto execute a brake action. The brake unit (200) contains a rotatable member (110) and first and second pressing members (211). The rotatable member (110) is mechanically linked to at least one wheel (105) of the rail vehicle (100). The first and second pressing members (211) are configured to move relative to the rotatable member (110) to execute the brake action. The brake unit (200) also contains a brake actuator (120) configured to produce an electric brake-force signal (BF) in response to the brake command (cmdB), a gear assembly arranged to operate mechanically on the first and second pressing members (211) and an electric motor (230) configured to act on the gear assembly (220) in response to the electric brake-force signal (BF). The brake actuator (120), in turn, includes a processing unit (125) that is configured to produce the electric brake-force signal (BF) based on the brake command (cmdB). Thus, the electric brake-force signal (BF) is efficiently protected from interfering electromagnetic radiation.

公开(公告)号：US20250100518A1

公开(公告)日：2025-03-27

申请号：US18834031

申请日：2022-11-24

Applicant: DELLNER BUBENZER AB

Inventor： Viktor PRIM

IPC: B60T8/17 ,  B60T8/171 ,  B60T8/172 ,  B60T8/32 ,  B60T8/88 ,  B60T8/92 ,  B60T13/74 ,  B60T17/22 ,  B61C17/06 ,  B61H5/00 ,  B61H13/00 ,  B61L15/00 ,  H01M10/46 ,  H02J7/34

Abstract: A parking brake system for a rail vehicle (100) contains a brake actuator (120) for receiving a parking-brake command (cmdP) and producing an electric brake-force signal (BF). A brake unit (200) contains first and second pressing members (211, 212) and a rotatable member (110) being mechanically linked to a wheel (105) of the rail vehicle (100). When receiving the electric brake-force signal (BF), the brake unit (200) causes the first and second pressing members (211, 212) to apply a braking force to the rotatable member (110) to keep the wheel (105) immobile. A gear assembly (220) in the brake unit (200) operates mechanically on the first and second pressing members (211; 212). In response to the electric brake-force signal (BF), an electric motor (230) acts on the gear assembly (220) to cause the first and second pressing members (211; 212) to attain a specified position interrelationship. An acceleration sensor (125) registers movements of the rail vehicle (100). If movements of the rail vehicle (100) above a magnitude threshold level are registered during a period when the parking-brake command (cmdP) has instructed the at least one wheel (105) to be immobile, the brake actuator (120) reproduces the electric brake-force signal (BF) to reapply the braking force to the rotatable member (110).

公开(公告)号：US20250153699A1

公开(公告)日：2025-05-15

申请号：US18834669

申请日：2022-12-30

Applicant: DELLNER BUBENZER AB

Inventor： Viktor PRIM

IPC: B60T13/74 ,  B60T8/17 ,  B60T17/00

Abstract: A braking system for a rail vehicle (100) has a brake actuator (120) that receives a brake command (cmdB) and produces an electric brake-force signal (BF) commanding a brake action. A brake unit (200) receives the electric brake-force signal (BF) and causes an electric motor (230) to act on a gear assembly causing first and second pressing members (211) to move towards or away from a rotatable member (110) mechanically linked to at least one wheel (105) of the rail vehicle (100) to execute the brake action with respect to the rotatable member (110). If a deicing criterion (DI) is fulfilled, the brake actuator (120) is configured to produce the electric brake-force signal (BF) in such a way that the brake action involves moving the first and second pressing members (211; 212) away from the rotatable member (110) so as to remove any ice and/or snow on the brake unit (200).

公开(公告)号：US20240157918A1

公开(公告)日：2024-05-16

申请号：US18282268

申请日：2021-11-10

Applicant: DELLNER BUBENZER AB

Inventor： Viktor PRIM

IPC: B60T8/1761 ,  B60T8/17 ,  B60T8/171 ,  B60T8/172 ,  B60T8/32

CPC classification number: B60T8/17616 ,  B60T8/1705 ,  B60T8/171 ,  B60T8/172 ,  B60T8/3235 ,  B60T2201/03 ,  B60T2240/02 ,  B60T2250/00 ,  B60T2270/413

Abstract: A rail vehicle has at least two railroad cars (111, 112, 11n) and a braking system with control units (121-1, 121-2, 122-1, 122-2, 12n-1, 12n-2) at least one of which is arranged in each railroad car. Each control unit receives a brake input signal (B), and in response thereto generates a control signal (c11, c12, c13, c14, c21, c22, c23, c24, cn1, cn2, cn3, cn4). The control signals are generated on the further basis of at least one motion parameter expressing a respective movement of the railroad cars (111, 112, 11n). At least one brake actuator (1311a, 1311b, 1312a, 1312b, 1311a, 1311b, 1312a, 1312b, 13n1a, 13n1b, 13n2a, 13n2b) is arranged in each railroad car. Each brake actuator receives the control signal generated by a control unit in the same railroad car as the brake actuator is located, and based thereon produces a brake-force signal (f11, f12, f13, f14, f21, f22, f23, f24, fn1, fn2, fn3, fn4) to a brake unit (141-1, 141-2, 141-3, 141-4, 142-1, 142-2, 142-3, 142-4, 14n-1, 14n-2, 14n-3, 14n-4). In response thereto, each brake unit causes a pressing member to apply a braking force to a rotatable member so as to reduce a rotation speed of at least one wheel of a railroad car in the rail vehicle.