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BS ISO 22839:2013 pdf free

BS ISO 22839:2013 pdf free.Intelligent transport systems – Forward vehicle collision mitigation systems
BS ISO 22839 specifies the concept of operation, minimum functionality, system requirements, system interfaces, and test methods for Forward Vehicle Collision Mitigation Systems (FVCMS). It specifies the behaviours that are required for FVCMS, and the system test criteria necessary to verify that a given implementation meets the requirements of this International Standard. Implementation choices are left to system designers, wherever possible.
FVCMS mitigate rear-end collisions. By reducing the collision energy, FVCMS reduce the degree of property damage, personal injury, or the likelihood of fatality. They supplement crashworthiness systems such as airbags, seatbelts and other energy-absorbing systems by reducing the impact energy that must be isolated from the occupants. By automatically activating ollision mitigation braking after a Collision Warning occurs,FVCMS assist in slowing the vehicle when a ollision is likely. While collision avoidance is not required, BS ISO 22839 permits collision avoidance to be attempted by a system that conforms to FVCMS.
Responsibility for the safe operation of the vehicle remains with the driver.
With the exceptions of single-track vehicles and trucks with dual or triple trailers, FVCMS are for use on road vehicles intended for public and non-public roadways. These systems are not intended for off-road use.
FVCMS may be classified based on the countermeasures that are provided. Classification is based on the minimum countermeasures and on additional countermeasures that may be provided. Each countermeasure has an associated minimum countermeasure action point (MCAP). FVCMS activate a countermeasure when the pre-collision urgency parameter (PUP) is at least equal to the minimum countermeasure action point for that countermeasure.
Speed reduction braking is an automatic braking function, intended to reduce subject vehicle velocity. SRB affords the driver an improved opportunity to apply manual emergency braking, to make an emergency lane change, or to determine that no hazard is present and to disengage SRB. Any of these actions could prevent MB from activating. To assist the occupants to prepare for this braking event, SRB actuation is preceded by a Collision Warning countermeasure.BS ISO 22839 pdf download.

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