ISO 20574-2019 pdf free.Road vehicles一Durability test method for starter motor for stop and start system.
CIn this stage, the following steps shall be conducted.
1) The dummy starter motor shall be changed to the calibration starter motor. The calibration starter motor is used to calibrate the temperature control system for the test.
2) Starter motor input V-I curve shall be adjusted according toll.
3) All test conditions shall be once again checked. If test conditions are not matching to the agreed test setup, the parameters shall be adjusted according to Table 2.
4) The starter motor cooling system (e.g. external fans) shall now be calibrated according to 7.1.
5) If all steps were taken, the durability test is ready to be executed.
6.1.4 Test execution stage
In this stage, the following steps shall be conducted.
1) Brush length of DOT should either be measured or specified nominal brush length should be used and recorded according to II.
2) The performance of the DOT shall be tested with agreed starter motor input according to ISO 8856.
3) The calibration starter motor shall be changed to DOT.
4) Initial conditions shall be documented, refer to Annex D items.
5) All the channel list items and their data recording rates shall be verified.
6) The durability test shall be started.
7) During test execution stage the parameters 00srRv and RBL shall be checked periodically by calculating the V-I curve. The data recording rates, and upper and lower limit shall be defined in the test planning matrix according Table 2. (3/3).
The test shall be stopped when one defined test stop criteria is reached (see Table 6). If criteria cannot be brought back into the defined range, the test shall be finished. Each time when the test is stopped, it shall be documented.
6.1.5 Post processing and reporting stage
At a minimum, the measurement data analysis of entire test (minimum/maximum/average analysis) shall be summarized and predefined in the test planning matrix Table 2. (2/3 reporting items).
Visual observation of starter motor from outside shall be performed and the results should be documented by photo.
The performance of the DUT shall be measured again with the same starter motor input as defined in 6.1.4 according to ISO 8856, and the results shall be recorded unless the starter motor was run to failure.
Tear down analysis shall be performed and the results should be documented by photo.
The remaining length of brushes shall be measured according to Z. and recorded.
Test information and analysis results on AnncxD should be summarised.
Additional analysis is specific to engine and/or vehicle manufacturers and starter motor manufacturer agreement at planning stage.ISO 20574 pdf free download.
Tags: Road vehicles
-
ISO 8600-1-2013 pdf free download.Endoscopes – Medical endoscopes and endotherapy devices – Part 1: General requirements. 6 Marking 6.1 Minimum marking Iach individual endoscope or endotherapy device shall have the lollowing minimum marking: a) model number and/or other mark sufficient to identify the endoscope or endotherapy device and its manufacturer; b) maximum insertion portion width, minimum instrument channel width, working length, field of view and/or direction of view where such identification is necessary for the intended use of the endoscope or endotherapy device. The Insertion portion width and instrument channel width units shall be in millimetres. The insertion portion width and instrument channel width can also be marked in French size as defined in 3.5, shown by either ‘Fr or an encircled number; c) wherever reasonable and practicable. the endoscope or endotherapy device and detachable component(s) shall be identified in terms of lot numbers or serial numbers, etc. 6.2 Marking legibility The marking shall remain legible over the lifetime of the device when the endoscope or endotherapy device is used, cleaned, disinlected, sterilized and stored in accordance with the instruction manual. 6.3 Marking exceptions When marking on the endoscope or endotherapy device or detachable component(s) is impossible to achieve due…
-
ISO 15688-2012 pdf free download.Road construction and maintenance equipment – Soil stabilizers 一 Terminology and commercial specifications. This International Standard establishes the terminology, definitions of operation and commercial specifications for soil stabilizers and their components intended for use in road construction and pavement works. It does not apply to soil stabilizers used in agricultural applications. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.. ISO 3911, Wheels and rims for pneumatic tyres — Vocabulary, designation and marking ISO 6746-1, Earth-moving machinery — Definitions of dimensions and codes — Part 1: Base machine ISO 6746-2, Earth-moving machinery — Definitions of dimensions and codes — Part 2: Equipment and attachments ISO 7134. Earth-moving machinery — Graders — Terminology and commercial specifications 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 soil stabilizer self-propelled machine, either towed or transported, with the function of pulverizing, breaking-up, aerating, homogenizing, and loosening existing and imported soil or paving materials and mixing them…
-
ISO 18436-1-2012 pdf free.Condition monitoring and diagnostics of machines – Requirements for qualification and assessment of personnel一 Part 1: Requirements for assessment bodies and the assessment process. 5 Requirements for assessment body personnel 5.1 General provisions In order to ensure that the assessment process is carried out effectively and uniformly, the competence requirements for personnel involved in the entire process shall be defined by the assessment body and, in the case of a third party, be approved by the responsible TCC (in accordance with ISO/IEC 17024). The assessment body shall require its personnel (internal or external) to sign a contract, or other document, by which they commit themselves to comply with the rules defined by the assessment body, including those relating to confidentiality and those relating to independence from commercial and other interests, and from any prior or present link with the persons to be examined that would, in the opinion of the interested parties, compromise impartiality. Clearly documented instructions shall be available to the personnel, describing their duties and responsibilities. These instructions shall be maintained up to date. All personnel involved in any aspect of assessment activities shall possess appropriate educational qualifications, experience and technical expertise, which satisfy defined…