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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 competen-
cies: On innovations and technically demanding solu-
tions. And implementing them. Faster, more efficiently 
and more successfully than others. Our claim reads: 
We want to be the best in the industry – we want to 
make future mobility safer, more convenient and sus-
tainable.

We have been developing a wide range of products 
and solutions for commercial and special vehicles for 
over 80 years. And the requirements are constantly 
changing. Increasingly heavier traffic, the ever-de-
creasing availability of raw materials and our increas-

ing sense of safety and environmental awareness 
mean that we are constantly facing new challenges.

We seize on these tasks, seeing them as an opportu-

nity to place trust in the knowledge of our many spe-
cialists in a lot of different fields of business, particularly 
in the commercial vehicles sector. As market and 
technology leader for tachographs, and with our control 
and monitoring systems for drive and on-board elec-
tronics, the on-board units for toll collection, the tele-
matic units and display instruments, we are securing 
the economic and ecological progress of the commer-
cial vehicle industry for today, tomorrow and the future.

Summary of Contents for ROAD SPEED LIMITATION -

Page 1: ...Road speed limitation for commercial vehicles www vdo com...

Page 2: ...80 years And the requirements are constantly changing Increasingly heavier traffic the ever de creasing availability of raw materials and our increas ing sense of safety and environmental awareness me...

Page 3: ...3 General information 4 Technical conditions 6 Legal requirements 7 Solutions 8 Advantages 10...

Page 4: ...long axle ratio attainable speeds for trucks are currently much higher than the speed limits on highways and secondary roads in many countries Excessive speed in trucks has numerous conse quences inc...

Page 5: ...signal to the control unit The control unit limits the fuel output in different ways depending on the fuel injection technology of the engine In addition to its main function limiting the maximum spee...

Page 6: ...e 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...

Page 7: ...r to make corrections Legal requirements Technical Requirements System requirements System approval Testing Requirements Regular vehicle checks On road monitoring by police Roadworthiness approved bod...

Page 8: ...th standard engine manage ment system This makes Pedal Interface II suitable for use on nearly all types of vehicles It can be config ured by authorized personnel to meet the needs of a wide range of...

Page 9: ...limit By pressing the variable speed limiter switch the driver can choose any speed within this range and the con troller limits the speed according to the driver s de mand Alternatively the unit can...

Page 10: ...pollutant emissions Driver is able to devote full attention to the traffic environment because there is no need to monitor speed visually Easy installation of retrofit systems More than 30 years expe...

Page 11: ...itoring with and without Road Speed Limiter Road Speed Limiter 90 KPH Current Limit KPH 140 120 100 80 60 40 20 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Time in sec Speed in KPH Road Speed 140 120...

Page 12: ...actual use or which may change as a result of further development of the products This information is merely a technical description of the product This information is not meant or intended to be a sp...

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