This Information Report relates to a special class of automotive adaptive equipment which consists of modifications to the power brake booster systems provided as original equipment of motor vehicles. These modifications are generically called "Reduced Effort Power Brakes" (REPB) The purpose of the modification is to lower the amount of driver effort required to apply the brakes. Retention of reliability, ease of use and maintainability for disabled drivers, passengers, and the general public is of primary concern. Reduced Effort Power Brake modifications should be qualified by the tests referenced in the Recommended Test Procedure. The tests set forth in that procedure should be applied, and failure of a Reduced Effort Power Brake modification to meet those tests should disqualify the modification from the claim of meeting the specifications of this Information Report. Because this is an Information Report, the numerical values for performance measurements presented in this report and in the accompanying Test Procedure, while based upon the best knowledge available at the time, have not been validated by a testing of the Test Procedure.
Rationale
"Joystick" or servo type hand controlled systems which supplant the stock system or a major part of the stock system are out of scope.
The Adaptive Devices Standards Committee reports to the Vehicle Systems Group of the Motor Vehicle Council. The Committee is responsible for developing and maintaining SAE Standards, Recommended Practices, and Information Reports related to defining minimum acceptable design requirements and performance criteria for adaptive equipment that is used by people with disabilities for their personal transportation. The Wheelchair Hoist Task Force has been developed under the committee's scope. Participants in the SAE Adaptive Devices Standards Committee include OEMs, suppliers, consulting firms, government, and other interested parties.
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J2671_200408
Reduced Effort Brakes and Reduced Effort Vacuum Powered Brake Backup Systems
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Reduced Effort Brakes and Reduced Effort Vacuum Powered Brake Backup Systems
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