Dear group, I have several questions for those working with video display systems on motor vehicles, both on and off-road types:
*Is a factory installed backup camera and its supporting dashboard mounted video display considered "driver convenience equipment" or does the system serve an "immunity related function"? Referring to excerpt below from UNECE Regulation No. 10--Section 2.12 defines "immunity related functions" as "functions related to the direct control of the vehicle", and subcategory (iii) states "By affecting driver's visibility: e.g. dipped beam, windscreen wiper." *Wouldn't a backup camera display giving intermittent or otherwise compromised video affect driver visibility? Certainly this would be distracting and could cause the driver to pause, brake or move his gaze from display to over shoulder. *Section 2.12(a) & (iii) implies a driver's reaction to unexpected/uncommanded vehicle system actions is similar to unwanted responses during immunity tests. Looked at another way, the driver is part of the vehicle control system even though he may only be reacting to the misbehaving vehicle system (dipped beam, windscreen wiper, etc). Am I interpreting Regulation 10 correctly? *I suspect that aftermarket backup camera systems are tested less rigorously than factory installed equipment. Could this be because factory installed displays provide more than just rearview video (navigation, entertainment, etc.) and as such are wired into other vehicle systems, thereby requiring greater immunity hardening? (From UNECE Regulation No. 10...) 2.12. "Immunity related functions" are: (a) Functions related to the direct control of the vehicle: (i) By degradation or change in: e.g. engine, gear, brake, suspension, active steering, speed limitation devices; (ii) By affecting drivers position: e.g. seat or steering wheel positioning; (iii) By affecting driver's visibility: e.g. dipped beam, windscreen wiper. (b) Functions related to driver, passenger and other road user protection: (i) E.g. airbag and safety restraint systems. (c) Functions which, when disturbed, cause confusion to the driver or other road users: (i) Optical disturbances: incorrect operation of e.g. direction indicators, stop lamps, end outline marker lamps, rear position lamp, light bars for emergency system, wrong information from warning indicators, lamps or displays related to functions in subparagraphs (a) or (b) which might be observed in the direct view of the driver; (ii) Acoustical disturbances: incorrect operation of e.g. anti-theft alarm, horn. (d) Functions related to vehicle data bus functionality: (i) By blocking data transmission on vehicle data bus-systems, which are used to transmit data, required to ensure the correct functioning of other immunity related functions. (e) Functions which when disturbed affect vehicle statutory data: e.g. tachograph, odometer. (f) Function related to charging mode when coupled to the power grid: (i) For vehicle test: by leading to unexpected vehicle motion; (ii) For ESA test: by leading to an incorrect charging condition (e.g. over-current, over-voltage). Thanks in advance for helping me understand this regulation and how it is applied. Best regards, Chet Summers This email and any files transmitted with it from The Charles Machine Works, Inc. are confidential and intended solely for the use of the individual or entity to which they are addressed. If you have received this email in error please notify the sender. Our company accepts no liability for the contents of this email, or for the consequences of any actions taken on the basis of the information provided, unless that information is subsequently confirmed in writing. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. Finally, the recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
