標準號：SAE J 377-2007
中文標準名稱：車輛交通聽覺信號裝置(喇叭)
英文標準名稱：Vehicular Traffic Sound Signaling Devices (Horns)
標準類型：T38
發布日期：2007/12/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：T38
國際標準分類號：43.040.20
引用標準：SAE J184;SAE J575;AIAG QS9000;ANSI S1.4-1983;ANSI S1.4A-1985;ASTM B117-1985;ECE Regulation R28;EEC Directive of 70/388/EEC;IEC Publication 60068-2-27;IEC Publication 60651-1979;IEC Publication 60068-2-64;IEC Publication 529-1989;IEC Publication 60942-1988
適用范圍：This SAE Standard establishes the minimum operational life, environmental requirements, and sound level output for electrically driven Vehicular Traffic Sound Signalling Devices (hereinafter referred to as Horns) on new automotivevehicles. Test equipment, environment, and procedures are specified.1.1 Intended Usage and Life ExpectationThe horns meeting this specification are intended to be used on automotive vehicles, in defined climatic conditions and environments.Any device functioning as a horn, is intended to perform its function, to this specification for at least 10 years or 250 000 km (150 000 miles). Two levels of usage shall be defined: A – Normal Usage; and B – High Usage.For the purposes of this specification, Normal Usage (A) life shall be interpreted as:Nominal Duty—50 000 actuationsChirp Duty—40 000 actuationsLong Duty—200 actuationsContinuous Duty—4.0 minutes (per section 8.14)These duty cycles are defined in Appendix B (figure B1):For purposes of this specification, High Usage (B) life shall be interpreted as Normal Usage (A) followed by an additional 450 000 Nominal Duty Actuations.These duty definitions shall be modified for Combined Environment Testing as shown in the Combined Environment section.