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Metodologie e strumenti dell'Ingegneria dei Requisiti ... - MobiLab

Metodologie e strumenti dell'Ingegneria dei Requisiti ... - MobiLab

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Esempi<br />

Esempio 1<br />

Requisito originario:<br />

REQ_BRAKE_61<br />

As above described when the train will depart, the following action will be provided (see document<br />

[2.11] for more details ):<br />

ATO release the Propulsion Cut Out (set High) and<br />

commands on MVB (dataset 707/708) Coasting and<br />

Propulsion Reset, the effort request is set to 0%.<br />

TCMS will command the Coasting (dataset 500)<br />

and set to 0 Service Brake bit. TCMS set high<br />

the braking Train Line<br />

(Cmd_Braking =1) -> service brake set OFF. BCU will send back the status of service and holding<br />

brake bits.<br />

ATO set traction bit =1 on MVB and Coasting and<br />

Propulsion Reset bit = 0 and set the effort request to<br />

50%.<br />

TCMS will replay the traction effort requested by<br />

ATO on MVB to BCU and TCU.<br />

If both TCU are active (no fault present), the TCMS<br />

will set high the stopping brake command (wired and<br />

low on MVB) at the same time when it requests traction<br />

effort. If one TCU is not able to provide effort, the<br />

TCMS will provide set high (wired and low on MVB)<br />

the stopping brake when the total train traction effort<br />

applied will reach the 10% of the maximum ( 14 kN).<br />

SHR_ATO_01<br />

SLR_ATO_01<br />

SHR_TCMS_01<br />

SLR_TCMS_01<br />

SHR_ATO_02<br />

SLR_ATO_02<br />

SHR_TCMS_02<br />

SLR_TCMS_02<br />

SHR_TCMS_03<br />

SHR_TCMS_03_scen1<br />

SHR_TCMS_03_scen2<br />

SLR_TCMS_03_scen1<br />

SLR_TCMS_03_scen2<br />

128

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