BS ISO 22078:2020 pdf free.Intelligent transport systems一Bicyclist detection and collision mitigation systems (BDCMS)一Performance requirements and test procedures.
BS ISO 22078 This document specifies the concept of operation, minimum functionality, system requirements, system interfaces, and test procedures for bicyclist detection and collision mitigation systems (BDCMS). It also defines the system test criteria necessary to verify that a given implementation meets the requirements of this document. Implementation choices are left to system designers, wherever possible. BDCMS are fundamentally intended to provide emergency braking (EB) of equipped vehicles in order to mitigate collision severity between the subject vehicle (SV) and a bicyclist. BDCMS detect bicyclists forward of the SV, determine if the detected bicyclists are in a hazardous situation with respect to the SV, and initiate EB if a hazardous situation exists and a collision is imminent. Systems that include other countermeasures such as evasive steering are outside the scope of this document.This document defines two types of BDCMS (based on operation in different ambient illuminance) and two classes of BDCMS (based on operation on different vehicle size classes), as depicted in Table 1. This document does not apply to motorcycles. The operational design domain is public roads. BDCMS is not intended for off-road use.BDCMS shall activate the EB countermeasure upon determination of a hazardous situation. It is the intent of this document that the SV EB countermeasure provides as much speed reduction as possible to mitigate a hazardous situation; however, as current state-of-the-art sensors have limitations, the detection area for crossing bicyclists is also limited. For example, only bicycles with certain speeds can be detected in certain crossing scenarios. Additionally, certain BDCMS implementations may be combined with an automated evasion countermeasure which could lead to different approaches to
mitigating the hazardous situation. For example, certain longitudinal bicyclist positions near the edges of the SV trajectory may lead to a reduced speed reduction. In these circumstances, while the minimum speed reduction may not be fully achieved, BDCMS shall begin the EB countermeasure upon
the determination of a hazardous situation so that some speed reduction is realized. Considering these limitations, BDCMS shall achieve at least the specified minimum speed reduction as defined in the basic validation tests of Clause 6.BS ISO 22078 pdf download.