User manual VDO ROAD SPEED LIMITATION BROCHURE

[. . . ] www. vdo. com Road speed limitation for commercial vehicles Mobility shapes our life ­ moving ahead is our passion A passion for mobility drives us to achieve new goals, to push further and to move boundaries. As a global supplier, we are concentrating on our core competencies: On innovations and technically demanding solutions. [. . . ] The driver can activate this feature below the maximum speed limit in areas with lower speed limits. Furthermore, the speed limiter includes additional speed limit inputs to preprogram smaller speed limits than the maximum speed. This functionality can be used to prevent fast driving if any special function in the vehicle is activated (like open doors on a city bus or people on the platform in the back of a garbage truck). 5 Technical conditions Two different engine technologies used in vehicles require different speed limiter device applications. Mechanically controlled engines Engine revs are regulated with a mechanical throttle pedal, which transmits the pedal position mechanically via a throttle cable or rod to the injection pump (or throttle body). The fuel demand on the injection pump is adjusted via a mechanical injection pump lever or a mechanical throttle plate. To realize a speed limiting system on a mechanically controlled engine, an electromechanical speed limiter is used to decouple the driver's demand from the injection pump in order to limit the maximum speed. In this application, the vehicle must be equipped with a separate speed limiter system. Mechanical injection pump Mechanical linkage Example of a mechanically controlled engine Electronically controlled engines Engine revs are regulated with a mechanical throttle pedal which converts the mechanical pedal position to an electrical signal, and transmits it via an electrical wire to an electronic control unit. The control unit regulates the fuel demand via electronic injection such as electronic diesel control (EDC), a pump line nozzle system (PLD) or common rail direct injection (CDI). In this application, the speed limiter function could be one of numerous functions managed by the engine's or vehicle's electronic control unit. Electronic injection system Electrical throttle position Example of an electronically controlled engine with speed limiter function in the engine or vehicle ECU 6 Legal requirements Experience from different countries and regions of the world has shown that successful implementation of a speed limiter directive rests on three major pillars: ·Technicalrequirementsforspeedlimitersystems ·Legalrequirementsforimplementation ·Testingrequirements(vehiclemonitoringintraffic) A speed limiter directive must define Technical Requirements ·Systemrequirements ·Systemapproval Legal Requirements ·Vehiclecategories ·Maximumspeed ·Dates(introductiontimeframe) ·Authorization(workshops) Testing Requirements ·Regularvehiclechecks ·On-roadmonitoringbypolice · oadworthiness R (approved bodies) ·Enforcement Manufacturer (of speed limiter or of vehicle) must ·Obtainsystemapproval · btainauthorizationfromregulatoryauthority O to set up workshops ·Educateworkshoppersonnel ·Monitorworkshops Onroad and roadworthiness checks · olicemustbeinformedbymanufacturerto P check vehicles on road ·Approvedbodiesneedthesameinformation ·Establishfines Compile statistics after law has come into effect in order to make corrections Graphical depiction of implementation of a speed limiter directive 7 Solutions VDO OEM solutions for commercial vehicles VDO offers a wide range of vehicle controllers and electromechanical actuators for commercial vehicles, most of which include functionality for a road speed limiter. These devices are specially designed in cooperation with truck manufacturers. The product spectrum consists of various controllers including: · Powertrainmastercontrolunit · Transmissionandretardercontrolunit · Rearaxlecontrolunit VDO Pedal Interface II Retrofit solution for electronically controlled engines Pedal Interface II consists of an electronic control unit that is installed between the pedal sensor and the engine management system, and can be custom programmed. Three versions of Pedal Interface II are available: Standard, Enhanced and Premium (See functionality comparison). [. . . ] An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract. We reserve the right to make changes in availability as well as technical changes without prior notice. [. . . ]