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BSI PD ISO/PAS 5101:2021

BSI PD ISO/PAS 5101:2021

$198.66

Road vehicles. Field load specification for brake actuation and modulation systems

Published By Publication Date Number of Pages
BSI 2021 68
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This document specifies expected field loads for functions provided by the braking system actuator and modulator and applies to passenger cars and light commercial vehicles (classes M1 and N1, according to UNECE).

Functions addressed in this document are:

  • dynamic stability functions (e.g. electronic stability control);

  • brake torque optimizing functions (e.g. electronic brake force distribution);

  • brake assistance functions (e.g. hill start assist).

This document only covers functions where data of appropriate maturity are available. There are additional functions of a braking system, which are not covered by this document.

By describing the expected field loads, this document specifies representative manoeuvres and occurrences for different functions. These serve as an orientation for the derivation of test procedures.

This document applies to vehicles up to conditional automation ( SAE J 3016 level 3) with a maximum of 30 % automated brake operations.

NOTE

Field loads for automation levels above level 3 are under consideration for future editions.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 General
5 Percentiles of field coverage
12 6 Base assumptions and boundary conditions
6.1 General
6.2 Lifetime specifications
6.2.1 Vehicle lifetime
13 6.2.2 Standstill events, slopes and durations
6.2.3 Standstill duration distribution
6.2.4 Brake duration distribution
14 6.3 Number of brake operations
15 6.4 Temperature distributions
6.4.1 Global environmental temperature distribution T
env
16 6.4.2 Temperature distribution at installation location T
inst
17 6.4.3 Exceptional high temperatures at the installation location
18 6.4.4 Function specific occurrence and distributions over temperature ranges
19 6.5 Brake pedal application profile
6.5.1 Parameters for brake pedal apply and release time
20 6.5.2 Modulation of deceleration during brake events
21 7 Braking system usage
7.1 Base brake function
22 7.2 Dynamic stability functions
7.2.1 Electronic brake force distribution (EBD)
7.2.2 Antilock braking system (ABS)
24 7.2.3 Traction control (TCS)
28 7.2.4 Electronic stability control (ESC)
32 7.2.5 Trailer sway control (TSC)
7.2.6 Roll-over mitigation functions
33 7.3 Brake torque optimizing functions
7.3.1 Brake booster support functions
44 7.3.2 Hydraulic brake assist (HBA)
45 7.3.3 Hydraulic rear-brake boost (HRB)
7.3.4 Fading support
46 7.3.5 Brake preconditioning
48 7.4 Assistance functions
7.4.1 Standstill management
53 7.4.2 Hill descent control
54 7.4.3 Adaptive cruise control (ACC)
59 7.4.4 Parking assist (PA)
63 8 Substitution methods
8.1 Dependent functions
8.1.1 Substitution of ABS functions
64 8.1.2 Substitution of hold functions
65 8.1.3 Substitution of fading support manoeuvres
8.1.4 Substitution of brake disc wiping manoeuvres
66 8.1.5 Substitution of base brake functions
67 Bibliography

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BSI PD ISO/PAS 5101:2021
$198.66