Search Results

This information report gives typical requirements for an anechoic chamber in which the system susceptibility of an operating motor vehicle to electromagnetic fields can be determined in the frequency range of 20 MHz to 18 GHz. Because of the large cone sizes required for 20 MHz cut-off, several anechoic facilities have been designed with lower cut-off frequencies of 200 MHz or greater. Testing below cut-off is then accomplished using customized antennas at reduced accuracy. Users should carefully review their testing requirements before undertaking the construction of a test facility the magnitude of an anechoic chamber. Other test approaches include, but are not limited to, open field testing per SAE J1338 and mode stirred reverberation chambers.

This information report gives typical requirements for an anechoic chamber in which the system susceptibility of an operating motor vehicle to electromagnetic fields can be determined in the frequency range of 20 MHz to 18 GHz. Because of the large cone sizes required for 20 MHz cut-off, several anechoic facilities have been designed with lower cut-off frequencies of 200 MHz or greater. Testing below cut-off is then accomplished using customized antennas at reduced accuracy. Users should carefully review their testing requirements before undertaking the construction of a test facility the magnitude of an anechoic chamber. Other test approaches include, but are not limited to, open field testing per SAE J1338 and mode stirred reverberation chambers.

This document establishes methods for characterizing the robustness of vehicle electronic modules to certain environmental stresses. They include: Voltage-Temperature Design Margins Voltage Interruptions-Transients Over Temperature Voltage Dips Current Draw Under a Number of Conditions These methods can be applied during Development, Pre-Qualification, Qualification or for Conformity. This document does not address other environmental robustness stresses such as vibration, high temp exposure, load faults, ESD, etc.

The methods included in this document are: a Voltage-Temperature Design Margins. b Voltage Interruptions and Transients. c Voltage Dropouts and Dips. d Current Draw Under a Number of Conditions. e Switch Input Noise These methods are best applied during the Development stage but can be used at all stages (e.g., Pre-Qualification, Qualification or Conformity).

The methods included in this document are: a Voltage-Temperature Design Margins. b Voltage Interruptions and Transients. c Voltage Dropouts and Dips. d Current Draw Under a Number of Conditions. e Switch Input Noise These methods are best applied during the Development stage but can be used at all stages (e.g. Pre-Qualification, Qualification or Conformity).

The methods included in this document are: a Voltage-Temperature Design Margins. b Voltage Interruptions and Transients. c Voltage Dropouts and Dips. d Current Draw Under a Number of Conditions. e Switch Input Noise These methods are best applied during the Development stage but can be used at all stages (e.g., Pre-Qualification, Qualification or Conformity).

This part of SAE J1113 specifies the direct RF power injection test method and procedure for testing electromagnetic immunity of electronic components for passenger cars and commercial vehicles. The electromagnetic disturbances considered in this part of SAE J1113 are limited to continuous, narrowband conducted RF energy. This test method is applicable to all DUT leads except the RF reference ground. The test provides differential mode excitation to the DUT. Immunity measurements of complete vehicles are generally only possible by the vehicle manufacturer. The reasons, for example, are high costs of a large absorber-lined chamber, preserving the secrecy of prototypes or the large number of different vehicle models. Therefore, for research, development, and quality control, a laboratory measuring method for components shall be applied by the manufacturer. This method is suitable over the frequency range of 250 kHz to 400 MHz.

This document establishes a method for characterizing the design margins and compatibility of electronic devices and equipment used in vehicles to various voltage fluctuations and transients over temperature.

This SAE Recommended Practice covers the recommended testing techniques for the determination of electric field immunity of an automotive electronic device when the device and its wiring harness is exposed to a power line electric field. This technique uses a parallel plate field generator and a high voltage, low current voltage source to produce the field.

This procedure covers the recommended testing techniques for the determination of electric field immunity of an automotive electronic device. This technique uses a Tri-Plate Line (TPL) from 10 kHz to 500 MHz and is limited to components which have a maximum height of equal to or less than 1/3 the height between the driven element and the outer, grounded plates. A Tri-Plate Line is a variation of a TEM cell design which is constructed without sides to the cell. The TPL sets up a region of uniform electric and magnetic fields between the center septum and the top and bottom grounded plates. One advantage to the use of the TPL as opposed to a TEM cell is that the construction permits large devices to be placed within the cell with their associated cables attached without special feed through ports or adapters as required for a TEM cell. The lack of sides which would be found in a TEM cell permits easy routing of the cables to and from the Equipment under test (EUT).

This procedure covers the recommended testing techniques for the determination of electric field immunity of an automotive electronic device. This technique uses a Tri-Plate Line (TPL) from 10 kHz to 500 MHz and is limited to components which have a maximum height of equal to or less than 1/3 the height between the driven element and the outer, grounded plates. A Tri-Plate Line is a variation of a TEM cell design which is constructed without sides to the cell. The TPL sets up a region of uniform electric and magnetic fields between the center septum and the top and bottom grounded plates. One advantage to the use of the TPL as opposed to a TEM cell is that the construction permits large devices to be placed within the cell with their associated cables attached without special feed through ports or adapters as required for a TEM cell. The lack of sides which would be found in a TEM cell permits easy routing of the cables to and from the Equipment under test (EUT).

This SAE Recommended Practice specifies the test methods and procedures necessary to evaluate electrical components intended for automotive use to the threat of Electrostatic Discharges (ESDs). It describes test procedures for evaluating electrical components on the bench. Functional status classifications for immunity to ESD are given in Appendix A. A procedure for calibrating the simulator that is used for electrostatic discharges is given in Appendix B.

This SAE Recommended Practice covers the recommended testing technique for determining the immunity of automotive electronic devices to magnetic fields generated by power transmission lines and generating stations.

This SAE Standard covers the recommended testing technique for determining the immunity of automotive electronic devices to magnetic fields generated by power transmission lines and generating stations.

This SAE Standard covers the measurement of voltage transient immunity, and within the applicable frequency ranges, audio (af) and radio frequency (rf) immunity, and conducted and radiated emissions. Emissions from intentional radiators are not controlled by this document. (See applicable appropriate regulatory documents.) The immunity of commercial mains powered equipment to over voltages and line transients is not covered by this document. (See applicable UL or other appropriate agency documents.)

This SAE Recommended Practice provides supporting information for the emission and immunity measurement procedures defined in SAE J1752.

Vehicle electrical/electronic systems may be affected when immersed in an electromagnetic field generated by sources such as radio and TV broadcast stations, radar and communication sites, mobile transmitters, cellular phones, etc. Reverberation method is used to evaluate the immunity of electronic devices in the frequency range of 500 MHz to 2.0 GHz, with possible extensions to 200 MHz to 10 GHz. At a later date, pulse modulation capability will be added for testing above 1 GHz.

This SAE Recommended Practice establishes uniform laboratory measurement techniques for the determination of the susceptibility to undesired electromagnetic sources of electrical, electronic, and electromechanical ground-vehicle components. It is intended as a guide toward standard practice, but may be subject to frequent change to keep pace with experience and technical advances, and this should be kept in mind when considering its use.

This SAE Recommended Practice establishes uniform laboratory measurement techniques for the determination of the susceptibility to undesired electromagnetic sources of electrical, electronic, and electromechanical ground-vehicle components. It is intended as a guide toward standard practice, but may be subject to frequent change to keep pace with experience and technical advances, and this should be kept in mind when considering its use.

This SAE Recommended Practice establishes uniform laboratory measurement techniques for the determination of the susceptibility to undesired electromagnetic sources of electrical, electronic, and electromechanical ground-vehicle components. It is intended as a guide toward standard practice but may be subject to frequent change to keep pace with experience and technical advances, and this should be kept in mind when considering its use.