phaeton
20-05-2007, 12:08 PM
Research program “PROMETHEUS” - goal guiding system by Volkswagen
Wolf castle, 18 October 1994 - with four vehicles Volkswagen is represented at the time of the conclusion of the research program “PROMETHEUS” of 18. until 20 October 1994 in Paris. In the center thereby is located an electronic navigation system, which leads the driver automatically to its goal. As characteristic it offers a coupling with the traffic radio: In the newest form with the radio DATA system (RDS) and the so-called Traffic Message Channel (TMC) traffic messages can flow directly into the route computer. By this dynamic, to a certain extent doubled system the vehicle with a back-up automatically one reroutes.
In the trade wind prototypes the instrument panel is equipped with a small colored screen. The driver can call all information up about the planned distance covered - from the overview on the basis a map or a city plan cutout up to the travel route at the next crossing. Additionally the driver with computer voice is led, he must regard the screen only if he needs special information.
The basic system is directly before production stage. The interface with RDS-TMC is already present, dynamic co-operation with the traffic radio functions, as soon as the broadcasting stations TMC introduce. Even over the price one already thought: It could, then one estimates in wolf castle, in the range of a good car radio to lie.
Basis for the goal guiding system is government inspection department for this “global Positioning system” constantly circles 21 satellites the earth (into 36,000 kilometers height). They send signals, which the navigation system receives. Number of revolutions sensors in the wheels (for ABS anyway available) announce the distance covered, a flux valve the direction to it: The computer knows on few meters exactly, where the car is in each case.
To the system belongs to a far “digital map”: Passable roads in completely Germany, later also of other countries, are stored on CD-ROM - on the same small CD, which make music possible with in former times not known sound in modern car radios. The digital map, which stores so far approximately 600,000 kilometers of 44 cities and the most important population centres, is completed according to plan.
The navigation computer thus knows, where the car straight is. It knows the goal, the driver it to it entered. The system drives now to a certain extent with pointed Finder the electronic map, the electronic city plan along. And literally knows at each corner, where it long-goes. The computer shows this the driver on the screen, it says to him the way with computer voice. Always in time, so that it can arrange itself - whenever necessary, he expresses even an appropriate recommendation.
The system always selects thereby to the goal the route, which is to be driven on most simply or fastest. In the traffic radio over RDS-TMC if a back-up is announced now, then the computer compares whether the back-up concerns the own distance. It is like that then it yields on other roads out of the drivers, which does not listen to the traffic radio, notices automatically often not at all that it was rerouted.
RDS is already imported. Those are car radios, which do not only call the adjusted frequency in their display, but the names of the program, e.g. NDR 2.
TMC comes shortly: On a long-term basis the disturbing traffic messages with their bleepers from the current broadcast program can disappear with it.
Automatic navigation can facilitate a getting along in strange environment crucially. With Volkswagen one sees interesting sales prospects for appropriate devices already very soon. This particularly applies to dynamic “dual mode” - systems, which consider the traffic radio automatically. Technically they are today already no more problem.
Research program “PROMETHEUS” - fully automatic longitudinal control
With two research vehicles Volkswagen on “PROMETHEUS” - the conclusion meeting demonstrates to Cruise control” into of Paris the principle of “Autonomous intelligently. AICC is a “intelligent speed and longitudinal control”: It ensures depending upon speed and road condition automatically for sufficient safety margin to a ahead-driving vehicle. She avoids rear end collisions, it harmonizes the flow of traffic, reduced thereby the fuel consumption and above all stress in column traffic.
With AICC a car in the back-up continues even fully automatic, it drives off just as automatically again, if it continues. A condition is however that it possesses an automatic transmission and naturally EXP. the research work are to a large extent locked. In wolf castle one could imagine an introduction of the series still in this decade.
Core of AICC is on the one hand the distance measurement. She works with a dreistrahligen infrared laser and thought out evaluation electronics. It recognizes not only the range of vision and thus for example fog, but can vehicles or firm of obstacles also standing as for instance steel guard rails in curves sight. Into this distance measurement research results flowed, those from Volkswagen with an earlier “PROMETHEUS” - project collected - with automatic drivers, from a camera led.
Second core of AICC is the automatic collection of the friction value, which the road offers. With slippery roadway, with rains and only quite with smoothness is necessary a larger safety margin than with dryness. The friction value registration uses differences in rpm between propelled and not propelled wheels out depending upon position of the gas pedal all the is larger, the slippery the straight traveled road, the lower their friction value is. The numbers of revolutions are removed in the standard abs tachogenerators in the wheels. Substantial know-how is again in the pertinent software.
The information “distance” and “friction value” gathers in electronics, which serves (electronic) the accelerotor pedal and the brake if required for its part. Supplementing data supply the speedometer - the more highly the speed, the more largely must be the distance - and a turning radius signal, which are likewise won from the abs wheel sensors. It limits the speed in curves and thus transverse acceleration to a measure, which does not impair the comfort.
AICC facilitates a driving - for before all in the column. The driver needs to steer only. In a Head UP display, also a novelty, he sees this whether AICC is switched on, whether it has to the ahead-driving cars “angedockt”. The data reflected down into the windshield call it the preselected, the straight driven and one dependent on friction value and turning radius recommended speed, them warn with slippery road and poor visibility.
The longitudinal control is so intelligent that it does not even need own controls: It is switched on and off with the normal speed control governor (GRA).
Also the additional parts are limited to a minimum: on the infrared sensor as well as on the system for the Head UP display, let in in front in bumper center. All remaining functions are as software into already in principle existing ABS and GRA electronics.
For Pics and Diagrams
Translated
http://translate.google.com/translate?u=http%3A%2F%2Fwww.passat.blauu.de%2Fmod ellgeschichte%2Ftypb4prometheus.html&langpair=de%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools
Original
http://www.passat.blauu.de/modellgeschichte/typb4prometheus.html
Wolf castle, 18 October 1994 - with four vehicles Volkswagen is represented at the time of the conclusion of the research program “PROMETHEUS” of 18. until 20 October 1994 in Paris. In the center thereby is located an electronic navigation system, which leads the driver automatically to its goal. As characteristic it offers a coupling with the traffic radio: In the newest form with the radio DATA system (RDS) and the so-called Traffic Message Channel (TMC) traffic messages can flow directly into the route computer. By this dynamic, to a certain extent doubled system the vehicle with a back-up automatically one reroutes.
In the trade wind prototypes the instrument panel is equipped with a small colored screen. The driver can call all information up about the planned distance covered - from the overview on the basis a map or a city plan cutout up to the travel route at the next crossing. Additionally the driver with computer voice is led, he must regard the screen only if he needs special information.
The basic system is directly before production stage. The interface with RDS-TMC is already present, dynamic co-operation with the traffic radio functions, as soon as the broadcasting stations TMC introduce. Even over the price one already thought: It could, then one estimates in wolf castle, in the range of a good car radio to lie.
Basis for the goal guiding system is government inspection department for this “global Positioning system” constantly circles 21 satellites the earth (into 36,000 kilometers height). They send signals, which the navigation system receives. Number of revolutions sensors in the wheels (for ABS anyway available) announce the distance covered, a flux valve the direction to it: The computer knows on few meters exactly, where the car is in each case.
To the system belongs to a far “digital map”: Passable roads in completely Germany, later also of other countries, are stored on CD-ROM - on the same small CD, which make music possible with in former times not known sound in modern car radios. The digital map, which stores so far approximately 600,000 kilometers of 44 cities and the most important population centres, is completed according to plan.
The navigation computer thus knows, where the car straight is. It knows the goal, the driver it to it entered. The system drives now to a certain extent with pointed Finder the electronic map, the electronic city plan along. And literally knows at each corner, where it long-goes. The computer shows this the driver on the screen, it says to him the way with computer voice. Always in time, so that it can arrange itself - whenever necessary, he expresses even an appropriate recommendation.
The system always selects thereby to the goal the route, which is to be driven on most simply or fastest. In the traffic radio over RDS-TMC if a back-up is announced now, then the computer compares whether the back-up concerns the own distance. It is like that then it yields on other roads out of the drivers, which does not listen to the traffic radio, notices automatically often not at all that it was rerouted.
RDS is already imported. Those are car radios, which do not only call the adjusted frequency in their display, but the names of the program, e.g. NDR 2.
TMC comes shortly: On a long-term basis the disturbing traffic messages with their bleepers from the current broadcast program can disappear with it.
Automatic navigation can facilitate a getting along in strange environment crucially. With Volkswagen one sees interesting sales prospects for appropriate devices already very soon. This particularly applies to dynamic “dual mode” - systems, which consider the traffic radio automatically. Technically they are today already no more problem.
Research program “PROMETHEUS” - fully automatic longitudinal control
With two research vehicles Volkswagen on “PROMETHEUS” - the conclusion meeting demonstrates to Cruise control” into of Paris the principle of “Autonomous intelligently. AICC is a “intelligent speed and longitudinal control”: It ensures depending upon speed and road condition automatically for sufficient safety margin to a ahead-driving vehicle. She avoids rear end collisions, it harmonizes the flow of traffic, reduced thereby the fuel consumption and above all stress in column traffic.
With AICC a car in the back-up continues even fully automatic, it drives off just as automatically again, if it continues. A condition is however that it possesses an automatic transmission and naturally EXP. the research work are to a large extent locked. In wolf castle one could imagine an introduction of the series still in this decade.
Core of AICC is on the one hand the distance measurement. She works with a dreistrahligen infrared laser and thought out evaluation electronics. It recognizes not only the range of vision and thus for example fog, but can vehicles or firm of obstacles also standing as for instance steel guard rails in curves sight. Into this distance measurement research results flowed, those from Volkswagen with an earlier “PROMETHEUS” - project collected - with automatic drivers, from a camera led.
Second core of AICC is the automatic collection of the friction value, which the road offers. With slippery roadway, with rains and only quite with smoothness is necessary a larger safety margin than with dryness. The friction value registration uses differences in rpm between propelled and not propelled wheels out depending upon position of the gas pedal all the is larger, the slippery the straight traveled road, the lower their friction value is. The numbers of revolutions are removed in the standard abs tachogenerators in the wheels. Substantial know-how is again in the pertinent software.
The information “distance” and “friction value” gathers in electronics, which serves (electronic) the accelerotor pedal and the brake if required for its part. Supplementing data supply the speedometer - the more highly the speed, the more largely must be the distance - and a turning radius signal, which are likewise won from the abs wheel sensors. It limits the speed in curves and thus transverse acceleration to a measure, which does not impair the comfort.
AICC facilitates a driving - for before all in the column. The driver needs to steer only. In a Head UP display, also a novelty, he sees this whether AICC is switched on, whether it has to the ahead-driving cars “angedockt”. The data reflected down into the windshield call it the preselected, the straight driven and one dependent on friction value and turning radius recommended speed, them warn with slippery road and poor visibility.
The longitudinal control is so intelligent that it does not even need own controls: It is switched on and off with the normal speed control governor (GRA).
Also the additional parts are limited to a minimum: on the infrared sensor as well as on the system for the Head UP display, let in in front in bumper center. All remaining functions are as software into already in principle existing ABS and GRA electronics.
For Pics and Diagrams
Translated
http://translate.google.com/translate?u=http%3A%2F%2Fwww.passat.blauu.de%2Fmod ellgeschichte%2Ftypb4prometheus.html&langpair=de%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools
Original
http://www.passat.blauu.de/modellgeschichte/typb4prometheus.html