公开(公告)号：US20190299951A1

公开(公告)日：2019-10-03

申请号：US15941601

申请日：2018-03-30

Applicant: Autoliv ASP, Inc.

Inventor： Arnie SPIEKER ,  Alexandru VERSIN

IPC: B60T13/14 ,  B60T13/66 ,  B60T13/74 ,  B60T13/68

Abstract: The present disclosure relates to a system for building pressure within a secondary braking system (SBS) of a vehicle having a plurality of brakes. The system may comprise a reservoir and a primary braking system (PBS) including a master cylinder including a primary circuit portion, a plurality of valve subsystems, a primary path connecting the master cylinder to the plurality of valve subsystems, and at least one valve disposed along the primary path between the master cylinder and the plurality of valve subsystems. The PBS also includes a secondary path connecting the reservoir to at least one valve subsystem of the plurality of valve subsystems, and no valves are disposed within the secondary path. The SBS is connected to the at least one valve subsystem.

公开(公告)号：US20190001949A1

公开(公告)日：2019-01-03

申请号：US15639652

申请日：2017-06-30

Applicant: Autoliv ASP, Inc.

Inventor： Long YING ,  Alexandru VERSIN ,  Juchirl PARK

IPC: B60T17/22 ,  B60T15/04 ,  B60T8/88

Abstract: A method is disclosed for validating operation of a secondary braking system (SBS) of a vehicle having a plurality of brakes, by controlling the SBS and a primary braking system (PBS) of the vehicle. The method may involve using the PBS to generate a first predetermined target braking pressure in the PBS for at least a first one of the brakes, while using the SBS to generate a second predetermined target braking pressure in the SBS for at least a second one of the brakes. Actual and anticipated performance characteristics of a braking component associated with the vehicle are then observed and compared, and from the comparison a determination is made whether the SBS is operating properly.

公开(公告)号：US20190001943A1

公开(公告)日：2019-01-03

申请号：US15639513

申请日：2017-06-30

Applicant: Autoliv ASP, Inc.

Inventor： Long YING ,  Juchirl PARK ,  Alexandru VERSIN ,  Huan FU

IPC: B60T8/1761 ,  B60T8/1755 ,  B60T8/172 ,  B60T7/12

Abstract: A method is disclosed for mitigating wheel hop of a motor vehicle. The method may involve detecting an oscillation of a wheel speed of a driven wheel of the motor vehicle of the motor vehicle. When oscillation of the wheel is detected, a low amplitude, high frequency ripple braking signal is applied to a brake caliper associated with the wheel to modulate a braking action acting on the wheel.

公开(公告)号：US20190299961A1

公开(公告)日：2019-10-03

申请号：US15941739

申请日：2018-03-30

Applicant: Autoliv ASP, Inc.

Inventor： Alexandru VERSIN ,  Arnie SPIEKER

IPC: B60T17/22 ,  B60T8/172 ,  B60T13/66 ,  B60T13/20

Abstract: A method and a system are disclosed for validating operation of a secondary braking system (SBS) of a vehicle having a plurality of brakes. The method may involve generating a predetermined braking pressure for at least one brake of the plurality of brakes and calculating, via an electronic control unit (ECU), an estimate of a pump output pressure based upon a counter electromagnetic force generated by a motor within the SBS. The method may further involve comparing an expected pump output pressure to the estimate, wherein the expected pump output pressure corresponds to the predetermined braking pressure and determining whether the SBS is operating properly based upon the comparison.