Transcript Diapositive 1

Training
course
AUTOMATIC INDUSTRIAL STATION
FOR VEHICLES EQUIPPED WITH INTELLIGENT
VALVES
30/09/03
Training
course
Schrader (GB)
Siemens
Each valve contains:
A reception
antenna
+
A transmitting
antenna
Training
course
- Schrader (GB)
- Siemens, Beru (Germany)
- TRW (USA)
- Pacific valve (Asia)
- Johnson control (SAGEM)
Details on the valves available:
-
Up until mid-2003: after having been awoken, the valve transmits its identifier and the
pressure of the tyre.
-
Next evolution: depending on a specific set of data which it will receive, each valve
will be programmable (the valves will have several modes of operation: for example, it
will be possible to return the valves to a sleep mode (to extend battery life), they will
allow the access to other technical information
Battery autonomy, valve production date, humidity,
acceleration, temperature….
Note: as a general rule, to operate, the valve must be pressurised ( > 500 mbar)
Training
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Vehicle detection
Phase 1
Factory network
x
ATEQ
Vehicle
identification
Antenne
Antenne
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Awaking the front right valve
Phase 2
Factory network
x
ATEQ
Antenne
60 cm
Transmitting antenna (125 KHz):
Continuous signal
Antenne
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The valve sends a signal
Phase 3
Factory network
x
ATEQ
Antenne
60 cm
Reception antenna
(433 MHz (Europe) or 315 MHz (US))
Signal:
Valve identifier code
Pressure, Temperature,
acceleration, Battery charge info…
Antenne
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Detection of the front left valve
Phase 4
Factory network
x
ATEQ
Antenne
Antenne
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Awaking the front left valve
Phase 5
Factory network
x
ATEQ
Antenne
Transmitting antenna (125 KHz)
Antenne
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The valve sends a signal
Phase 6
Factory network
x
ATEQ
Antenne
Reception antenna
Antenne
Signal:
Valve identifier code
pressure, temperature,
acceleration, battery charge info…
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Next phases
Same process with the rear tyre valves
Factory network
x
ATEQ
Antenne
Antenne
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Sending of data to the factory network
Final phase
ARCHIMEDE
x
ATEQ
Antenne
Antenne
Factory network
Download
Vehicle calculator
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Other technical configuration (event of vertical movement)
4 transmitters / 4 receptors
Facotry network
x
ATEQ
Antenne
Antenne
Antenne
Antenne
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• Each valve has its own unique identifier code
=> the driver knows which tyre is concerned with an eventual
low pressure problem.
• This identifier code is also used to avoid an interference between two 2
cars stationed next to each other.
• Installed on the production line, the station transmits each identifier code
to the vehicle computer through the factory network.
Without that, the vehicle dashboard would display and “error”, as no valve
would be recognized by the vehicle computer.
Training
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SSPP Station:
Technical data Antennas/Network
•
Activation frequency: 125 KHz.

Range: adjustable from 20 cm to 1 m.
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Cycle time: generally 50 sec. *
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Field of emissions: about 250 A/m.
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AM/FM reception: 433 and/or 315 MHz
(1 single installation = two frequencies)
Production line speed: up to 6m/min*
*depending on the valve type
Training
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Technical data for the station
C540 or PC and/or PLC interface
(History, traceability of errors, parameters-process, maintenance menu, user
friendly interface, control of the power electronics)


2 sets of antenna (1 set on each side of the vehicle)
Each set contains:
- one transmitting antenna
- one reception antenna
- The power electronics
Air conditioned PLC workstation (dim.: 2000 x 1200 x 500 mm)
Connected to the factory network
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
Vehicle presence detectors
x
x
R
1
CON
DITI
ONS
D'EP
REU
VE
R
2
RES
ULT
ATS
C
5
4
0
C
Control
desk
Control desk
with control buttons
Measurement unit,
position sensors and
wheel detection units
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Factory network
Antenne
Binary link
RS 485 Modbus link
ATEQ internal link
PROFIBUS link
Factory network
The links
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At what frequency does the valve emit?
Moving: 5 to 7 sec
Parked: 15 min
If the pressure changes => signal sent
Vehicle computer