{"id":385978,"date":"2024-10-20T03:33:16","date_gmt":"2024-10-20T03:33:16","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-41382021\/"},"modified":"2024-10-26T06:28:33","modified_gmt":"2024-10-26T06:28:33","slug":"bs-iso-41382021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-41382021\/","title":{"rendered":"BS ISO 4138:2021"},"content":{"rendered":"

This document specifies open-loop test methods for determining the steady-state circular driving behaviour of passenger cars as defined in ISO 3833 and of light trucks, such behaviour being one of the factors comprising vehicle dynamics and road-holding properties. The open-loop manoeuvres included in these methods are not representative of real driving conditions, but are nevertheless useful for obtaining measures of vehicle steady-state behaviour resulting from several specific types of control inputs under closely controlled test conditions.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Principle
4.1 Test methods <\/td>\n<\/tr>\n
10<\/td>\n4.2 Equivalence of test methods
5 Variables
5.1 Reference system
5.2 Measurement <\/td>\n<\/tr>\n
11<\/td>\n6 Measuring equipment
6.1 Description
6.2 Transducer installation
6.3 Data processing
7 Test conditions <\/td>\n<\/tr>\n
12<\/td>\n8 Test procedure
8.1 Warm-up
8.2 Initial driving condition
8.3 General test description
8.4 Method 1 \u2014 Constant radius
8.4.1 Description <\/td>\n<\/tr>\n
13<\/td>\n8.4.2 Procedure
8.5 Method 2 \u2014 Constant steering-wheel angle
8.5.1 Description
8.5.2 Procedure <\/td>\n<\/tr>\n
14<\/td>\n8.6 Method 3 \u2014 Constant speed
8.6.1 Description
8.6.2 Procedure <\/td>\n<\/tr>\n
15<\/td>\n9 Data analysis
9.1 General
9.2 Lateral acceleration <\/td>\n<\/tr>\n
16<\/td>\n9.3 Path radius
10 Data evaluation and presentation of results
10.1 General
10.2 Plotted results (see also Annex A)
10.3 \u200bEvaluation of characteristic values
10.3.1 General <\/td>\n<\/tr>\n
17<\/td>\n10.3.2 \u200bEvaluation of gradients \u2014 Differentiation <\/td>\n<\/tr>\n
18<\/td>\n10.3.3 Normalization of results \u2014 Comparison of results from different vehicles <\/td>\n<\/tr>\n
19<\/td>\n10.3.4 Normalized steady-state properties <\/td>\n<\/tr>\n
21<\/td>\nAnnex A (normative) Presentation of results <\/td>\n<\/tr>\n
27<\/td>\nAnnex B (normative) Determination of overall (static) steering ratio <\/td>\n<\/tr>\n
28<\/td>\nAnnex C (informative) General information \u2014 Theoretical basis for the test methods <\/td>\n<\/tr>\n
29<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Passenger cars. Steady-state circular driving behaviour. Open-loop test methods<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2021<\/td>\n30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":385990,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-385978","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/385978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/385990"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=385978"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=385978"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=385978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}