LV124 STANDARD PDF
LV covers tests for electric and electronic components for use in motor vehicles up to 3,5 t with a 12 V electric mOhm. Tolerances & standard values. LV Automotive test standard bij Hielkema Testequipment. The LV includes several mechanical, climatic and life tests, such as the K damp heat. ISO , Road vehicles—Environmental conditions and electrical testing for electrical and electronic equipment, is an ISO standard which provides guidance .
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Each contact must be tested individually in the case of multiple-contact relays and multiple-contact switches. Each connector must be removed once.
Autowave, VT System Vectoretc. Test parameters The test is carried out acc.
Functional status B If required, an emergency mode must be defined. This must be verified by means of continuous parameter monitoring.
LV/ LV Tests – INSYS test
Tolerances refer to stwndard required measured value. The test serves to verify the resistance of the component to humid heat. The test serves to verify the resistance of the part to faults, such as component displacement or material fatigue. At every temperature increment, the DUT must be kept until it completely maintains the temperature see Section 5.
Schematic circuit for test E Backfeeds 4. No additional function generator is necessary. For a component in which the operating voltage is switched by standar of a relay, the following applies deviating from the value mentioned above: U occurring in the vehicle between the DUT and the battery terminals must be observed by means of adjusting the voltage source.
Intermitting 1 h operating mode II. The following sequence must be complied with for this purpose: Safety instructions and lv214 for the chemicals must be observed.
LV – LV Automotive test standard – LV Automated System for Automotive
Models 35 V Voltage max. Brake control system Component as in parked vehicle. The climatic chamber keeps the initial temperature for 60 min to ensure that the DUT maintains the temperature.
To ensure a test similar to the real conditions, the test is carried out intermittently at the test temperatures Top, max and Tmax see Figure standrad Software The powerful and easy to use WaveMaster software is unique in world market. International Organization for Standardization. The measured values must meet the specifications. TFeld Average temperature difference stanfard service life in the field c Parameter of the Coffin-Manson model In this standard a fixed value of 2,5 is used for c.
The represented tests do not serve for component qualification or a qualification of the manufacturing process. Verification takes place by means of continuous parameter monitoring and a parameter test small acc.
The test serves to ensure that a part that does not show any outwardly visible damage and therefore is installed in the vehicle, does not have any hidden damages or predamages, e.
The holding time is the time until the component achieves the condition at which it maintains the temperature plus 15 min. The eTS one meets all requirements of the standard LV Changes or damages must be documented in the test report and evaluated with the purchaser.
Voltage- and current control
The SIB series are linear precision 4-quadrant power amplifiers for fast voltage and current signals – each positive and negative bipolar. The current draw during the test must be documented. A generator control fault during driving operation is simulated. Reverse polarity resistance must be in compliance with functional status C.
Test parameters L Life test – high-temperature endurance test The test is carried out acc. Voltage- and current control Both voltage and current control of the mighty amplifiers is possible.