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Standard

Electric Park Brake Sizing

2017-10-16
WIP
J3158
The scope of this new recommended practice should include, but not necessarily be limited to: 1. Define vehicle operating conditions used to drive MOC-EPB actuator design and selection 2. Define brake corner operating conditions (e.g. temperature and state of burnish) used to drive MOC-EPB actuator design and selection 3. Define actuator operating conditions (e.g. temperature, voltage, current limit, and state of wear) used to drive MOC-EPB actuator design and selection 4. Define methodology for addressing part to part variation in performance
Standard

Brake Hydraulic Component Flow Rate Measurement for High Differential Pressure (>5 bar)

2017-05-18
CURRENT
J3052_201705
This recommended practice provides a method, test set-up, and test conditions for brake hydraulic component flow rate measurement for high differential pressure (>5 bar) flow conditions. It is intended for hydraulic brake components which affect the brake fluid flow characteristics in a hydraulic brake circuit, that are part of a circuit for which the flow characteristics are important to system operation, and that are exposed to high operating pressure differentials (in the 5 to 100 bar range). Typical applications may include measurement of flow through chassis controls valve bodies, orifices in the brake system such as in flow bolts, junction blocks, and master cylinders, and through brake pipe configurations.
Standard

Strength and Durability Testing for Automotive Hydraulic Brake Components

2017-03-13
CURRENT
J2995_201703
This recommended practice will specify a standard duty cycle and set of conditions for component-level durability testing. The "duty cycle" refers to a set of loading conditions (e.g. torque or pressure and cycling count), and the 'test conditions" refers to environmental conditions such as temperature, humidity, and part conditioning from prior exposure (e.g. heat aging).
Standard

Rubber Boots for Drum-Type Hydraulic Brake Wheel Cylinders

2015-12-17
CURRENT
J1604_201512
This SAE Standard covers molded rubber boots used as end closures on drum-type wheel brake actuating cylinders to prevent the entrance of dirt and moisture, which could cause corrosion and otherwise impair wheel brake operation. The document includes performance tests of brake cylinder boots of both plain and insert types under specified conditions and does not include requirements relating to chemical composition, tensile strength, or elongation of the rubber compound. Further, it does not cover the strength of the adhesion of rubber to the insert material where an insert is used. The rubber material used in these boots is classified as suitable for operation in a temperature range of −40 to +120 °C ± 2 °C (−40 to + 248 °F ± 3.6 °F).
Standard

Brake Hydraulic Component Low Pressure Flow Rate Measurement

2015-08-11
CURRENT
J2994_201508
The SAE Recommended Practice specifies a standardize method and test procedure to measure low pressure differential (< 1bar) brake component brake fluid flow performance. The standard can be utilized for flow measurements across hydraulic brake components such as master cylinders, apply system to chassis controls piping, or other sources of flow restriction in the low pressure side of the hydraulic brake system. It covers materials, manufacturing processes, and general properties required to meet the wide range of service encountered in automotive application. This specification covers only low pressure differential fluid flow and does not include measurement recommended practice for High Pressure differential (> 1 bar) flows.
Standard

Vacuum Power Assist Brake Booster Test Procedure

2015-06-30
CURRENT
J1808_201506
This document applies to direct acting vacuum power assist brake boosters only, exclusive of the master cylinder or other brake system prime mover devices for passenger cars and light trucks [4500 kg GVW (10 000 lb)]. It specifies the test procedure to determine minimum performance and durability characteristics.
Standard

Rubber Seals for Hydraulic Disc Brake Cylinders

2014-12-03
CURRENT
J1603_201412
This SAE Standard describes the performance and part requirements for elastomeric seals used in highway vehicle disc brake calipers. Seals covered by this specification may be the solid section type (square, rectangular, O-ring, etc.) mounted stationary in the cylinder bore or on the movable piston.
Standard

Brake Master Cylinder Reservoir Diaphragm Gasket

2014-11-26
CURRENT
J1605_201411
This SAE Standard covers performance requirements and methods of test for master cylinder reservoir diaphragm gaskets that will provide a functional seal and protection from outside dirt and water.
Standard

Structural Testing of Passenger Car and Truck Disc Brakes

2014-11-15
CURRENT
J1713_201411
This SAE Recommended Practices specifies a procedure for determining structural strength and fatigue life of disc-brake caliper assemblies which are satisfactory for vehicle usage. It is applicable to new caliper assemblies which are employed in passenger car and truck brake systems utilizing hydraulic brake fluids. Brake design and vehicle performance requirements are not included. Specification limits are left to the discretion of the responsible manufacturer. This procedure was developed for base brake operation and does not consider some unusual effects of ABS (Anti-Lock-Brake System) or Traction Control systems which may have a significant effect on the caliper. Careful analysis of the particular type ABS and/or Traction Control should be made and additional tests may be required which are not included in this document.
Standard

Hydraulic Wheel Cylinders for Automotive Drum Brakes

2013-07-09
CURRENT
J101_201307
This document specifies minimum performance and durability requirements for satisfactory vehicle usage, and it is applicable to wheel cylinder assemblies from commercial production, after production shipment, shelf storage, and remanufacture (factory rebuild).
Standard

Structural Testing of Passenger Car and Truck Disc Brakes

2013-02-13
HISTORICAL
J1713_201302
This SAE Recommended Practices specifies a procedure for determining structural strength and fatigue life of disc-brake caliper assemblies which are satisfactory for vehicle usage. It is applicable to new caliper assemblies which are employed in passenger car and truck brake systems utilizing hydraulic brake fluids. Brake design and vehicle performance requirements are not included. Specification limits are left to the discretion of the responsible manufacturer. This procedure was developed for base brake operation and does not consider some unusual effects of ABS (Anti-Lock-Brake System) or Traction Control systems which may have a significant effect on the caliper. Careful analysis of the particular type ABS and/or Traction Control should be made and additional tests may be required which are not included in this document.
Standard

Hydraulic Valves for Motor Vehicle Brake Systems - Performance Requirements

2012-12-03
CURRENT
J1137_201212
This SAE Recommended Practice applies to valve assemblies that are used on passenger car and light truck braking systems utilizing motor vehicle hydraulic brake fluids. The procedure (SAE J1118) and these requirements (SAE J1137) were developed for brake fluids conforming to SAE J1703 and FMVSS 116 (DOT 3) requirements; however, it may be utilized for valves which use DOT 4 or DOT 5 brake fluid. These requirements are applicable to differential warning, metering hold off, bypass function, or proportioning type valves or any combination thereof.
Standard

Hydraulic Valves for Motor Vehicle Brake Systems Test Procedure

2012-12-03
CURRENT
J1118_201212
The SAE Recommended Practice specifies the test procedure to assure valve assemblies which are satisfactory for vehicle usage, and it is applicable to new valve assemblies for commercial production. It covers such valves where they are employed in passenger car and light truck brake systems utilizing motor vehicle hydraulic brake fluids. This procedure and requirements (SAE J1137) was developed for brake fluids conforming to SAE J1703 and FMVSS 116 (DOT 3); however, it may be utilized for valves which use DOT 4 or DOT 5 brake fluid. These procedure specifications were developed for base brake operation and do not consider the effects of ABS (anti-lock brake systems) or traction control systems which may have a significant effect on the valve. Careful analysis of the particular type ABS and/or traction control (if included in the system) should be made and additional tests are required which are not included in this document.
Standard

Shelf Storage of Hydraulic Brake Components

2012-04-30
CURRENT
J1825_201204
This SAE Information Report is the listing of recommendations for shelf storage for hydraulic brake components. Included in brake components are wheel cylinders, master cylinders, combination valves, and disc brake caliper assemblies. This document is not a specification. This document embodies the analyses and experiences of many users and manufacturers. Where specific manufacturers' recommendations are made, those recommendations shall supersede the recommendations of this document. This document lists the successful procedures and practices associated with brake components based on long experience of a wide cross section of manufacturers and users. The practices are expected to be applied to all brake components where SAE standards are applicable.
Standard

Remanufactured Hydraulic Master Cylinder for Motor Vehicle Brakes - Performance Requirements

2012-04-30
CURRENT
J1694_201204
This SAE Recommended Practice defines minimum requirements for general characteristics, performance, and durability. It is applicable to remanufactured assemblies (factory rebuild) only. This document applies to master cylinder assemblies and components of current established designs but does not cover fluid level sensors, integral proportioning valves, or those master cylinders used in anti-lock brake or traction control systems. These will be covered by other standards. The general characteristics and test procedure are specified in SAE J1693.
Standard

Remanufactured Hydraulic Master Cylinder for Motor Vehicle Brakes - General Characteristics and Test Procedure

2012-04-30
CURRENT
J1693_201204
This SAE Recommended Practice specifies the general characteristics and test procedure to define the minimum characteristics, performance, and durability requirements. It is applicable to remanufactured assemblies (factory rebuild) only. This document applies to master cylinder assemblies and components of current established designs but does not cover fluid level sensors, integral proportioning valves or those master cylinders used in anti-lock brake or traction control systems. These will be covered by other standards. The minimum characteristics, performance, and durability requirements are specified in SAE J1694.
Standard

Materials for Plastic Pistons for Hydraulic Disc Brake Cylinders

2012-04-30
CURRENT
J1568_201204
The materials defined by this SAE Standard are glass-fiber-reinforced, mineral-filled phenolic molding compounds suitable for compression molding. Preforms may be radio frequency preheated or screw preheated slugs. Compound for use in hydraulic disc brake caliper pistons.
Standard

Rubber Dust Boots for the Hydraulic Disk Brake Piston

2012-04-30
CURRENT
J1570_201204
This SAE Standard covers molded rubber boots used on disc brake pistons to prevent the entrance of dirt and moisture which could cause corrosion and otherwise impair caliper operation. The specification includes performance tests of brake piston boots of both plain and insert types under specified conditions and does not include requirements relating to chemical composition or physical properties of the rubber compound. Further, it does not cover the strength of the adhesion of rubber to the insert material where an insert is used. The rubber material used in these boots is classified as suitable for operating in a temperature range of -40 to + 120 °C ± 2 °C (-40 to + 248 °F ± 3.6 °F).
Standard

Plastic Dust Shield for Hydraulic Disc Brakes

2012-03-20
CURRENT
J1876_201203
The material defined by this SAE document is an impact modified, heat stabilized, 66 nylon reinforced with glass fibers. This material is for use in dust shields for hydraulic disc brakes. NOTE—The applicability of a plastic dust shield must be evaluated for each individual brake system. Its use with solid rotors and/or high performance brake systems is not recommended.
Standard

Hydraulic Power Assist Brake Booster Test Procedure

2012-02-17
CURRENT
J1807_201202
This SAE Standard applies to direct acting hydraulic power assist brake boosters only, of the type which provide "push through" manual braking of the static brake circuit(s) via a separate master cylinder, in event of inoperative power assistance similar to existing vacuum boosters (SAE J1808), for passenger cars and light trucks [4500 kg GVW (10 000 lb)].
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