Hardware in the Loop Simulation - Economic Commission Europe Category C Brake Assist System General Motors Company

Format:

Conference/Event

Author/Creator:

Miller, Miller, author.

Contributor:

Auden, Joshua R.

Rizzo, Michael D.

Taylor, Robert L.

Conference Name:

SAE 2011 World Congress & Exhibition (2011-04-12 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

Brake Assist System (BAS) requirements have been established bythe Economic Commission for Europe (ECE) in R13H. ElectronicStability Control (ESC) systems typically have the value addedfunction of Panic Brake Assist (PBA) which is defined as a CategoryC (sensitive to multiple criteria) Brake Assist System. PBA isdesigned to force the vehicle into Antilock Brake System (ABS) andto maintain ABS control when the driver spikes the brake pedal andthen temporarily reduces brake pedal force before reasserting morebrake pedal force.ECE test protocol requires the use of brake ramp applications to define the mean acceleration force (maF) curve which is used todefine the brake pedal force where ABS activates (FABS).After completing the brake ramp application test maneuvers andcompleting the data processing to define the maF curve,FABS, upper, andFABS,lower, thetest driver then proceeds to run the panic brake assist portion ofthe test. A high level of skill is required for a test driver tospike the brake pedal and then reduce the brake pedal force to alevel between FABS, upper andFABS, lower.Numerous panic brake assist test runs can cause the test driverfatigue and the amount of force within specified range is difficultto vary from the high end to the low end of acceptable range.Hardware-in-the-loop simulation that includes the physical brakesystem and the ability to control brake pedal force serves asanother test method which can be used to eliminate need for thetest driver and to more precisely control the amount of brake pedalforce varying from the high end to the low end of the specifiedrange.The methodology of using hardware-in-the-loop (HIL) simulationto validate Category C Brake Assist System vehicle performance willbe presented. HIL simulation provides additional ability tovalidate different versions of ESC software and calibrations. Thecombination of physical tests and simulations is an effectivemethodology to demonstrate Category C Brake Assist Systemcompliance for all variants of a vehicle program

Notes:

Vendor supplied data

Publisher Number:

2011-01-0955

Access Restriction:

Restricted for use by site license