Standard

SAE J1505

Published

Note: This standard has a new edition: SAE J1505

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This standard can not be purchased as a single sales.

Abstract

This SAE Recommended Practice provides the test procedure and instructions for air braked single unit trucks, buses, and combination vehicles. Brake force distribution testing with systems post-reduced stopping distance changes is still appropriate; however, vehicles with electrononically controlled braking systems are not covered in this document and may need to be addressed in the future. It also provides recommendations for: a. Instrumentation and equipment. b. Vehicle preparation. c. Calculating distribution of brake force. Purpose This procedure provides a method to determine the brake force distribution and threshold pressures for trucks and buses with a GVWR greater than 4536 kg (10000 pounds). Other equipment and procedures could be used to determine approximate relative work or energy being absorbed by a vehicle’s brakes. A performance-based brake tester can determine low pressure/low speed torques of different brakes. A temperature/thermal balance can show relative temperatures of brakes, thus indicating approximate energy absorbed.

Document information

  • Standard from SAE_AC
  • Published:
  • Version: 0
  • Document type: IS