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Component Design
1 - ES003A_PwrDiscnct
3 - ES003A_PwrDiscncts
ES003A_PwrDiscnct
ES003A_PowerDisconnect
Version: 0.0
Printed by: Rakesh Prabhakara
Printed on: Thursday, March 26, 2015
Generated from DOORS 9.5.1.2
Contents
1
Purpose
1
2
Interface Requirements
2
2.1
Definitions
2
2.1.1
Inputs
2
2.1.2
Outputs
2
2.1.3
Internally Defined Terms
2
3
Requirements
4
3.1
Primary Functional Requirements
4
3.2
Hardware Requirements
4
3.3
Software Requirements
4
3.3.1
Special Execution Requirements
4
3.3.2
Functional Requirements
4
3.3.2.1
Sub-Function: Calculate Delta Voltage
4
3.3.2.2
Sub-Function: Power Disconnect Sequence A Control
4
3.3.2.3
Sub-Function: Power Disconnect Sequence B Control
5
3.4
Diagnostic Requirements
5
3.4.1
Power Disconnect Fault for Inverter1 at Init (NTC 0x042)
5
3.4.1.1
Required Debounce Strategy
5
3.4.1.2
Requirements to Perform Diagnostic Test Conditions
5
3.4.1.3
Test Condition Negative Requirements
5
3.4.1.4
Test Condition Positive Requirements
5
3.4.2
Power Disconnect Fault for Inverter2 at Init (NTC 0x4A)
5
3.4.2.1
Required Debounce Strategy
5
3.4.2.2
Requirements to Perform Diagnostic Test Conditions
5
3.4.2.3
Test Condition Negative Requirements
6
3.4.2.4
Test Condition Positive Requirements
6
Contents
ii
ID
ES003A_PowerDisconnect
ES003A
1 Purpose
_1
Page 1 of 6
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ID
ES003A_PowerDisconnect
ES003A
2 Interface Requirements
_2
ES003A
2.1 Definitions
_5
ES003A
2.1.1 Inputs
_6
ES003A
For the purposes of this document, the input signals are referred to as stated in the following (note each
_9
input is identified in a separate object for linking purposes to the design):
Defined terms used in the document shall be in bold text.
ES003A
BattVltg: ADC Converted representation of Battery Voltage (Upstream of Power Disconnect)
_10
ES003A
BattVltgSwd1: ADC Converted representation of Switch Voltage from Inverter 1 (Downstream of
_11
Power Disconnect)
ES003A
BattVltgSwd2: ADC Converted representation of Switch Voltage from Inverter 2(Downstream of
_12
Power Disconnect)
ES003A
ELECGLBPRM_IVTRCNT_CNT_U08: Number of Inverters
_13
ES003A
StrtUpSt: Comprehensive collection of start-up bits indicating Power Up Sequence Type
_106
ES003A
2.1.2 Outputs
_7
ES003A
For the purposes of this document, the input signals are referred to as stated in the following (note each
_20
input is identified in a separate object for linking purposes to the design):
Defined terms used in the document shall be in bold text.
ES003A
PwrDiscnctATestCmpl: Flag Indicating that the sequence A is complete
_15
ES003A
PwrDiscnctBTestCmpl: Flag Indicating that the sequence B is complete
_14
ES003A
2.1.3 Internally Defined Terms
_8
ES003A
For the purposes of this document, the internally defined variables are referred to as stated in the
_17
following (note each input is identified in a separate object for linking purposes to the design):
Defined terms used in the document shall be in underlined text.
Page 2 of 6
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ID
ES003A_PowerDisconnect
ES003A
DeltaVltg1: This indiactes the difference between BattVltg and BattVltgSwd1.
_21
ES003A
DeltaVltg2: This indiactes the difference between BattVltg and BattVltgSwd2
_23
ES003A
PwrDisncntMaxSwdVltg: Field configurable variable that indicates largest voltage at which
_18
BattVltgSwd1 and BattVltgSwd2 saturate (nominally 16V)
ES003A
PwrDiscnctOpenThd: Voltage threshold for determining BattVltgSwd1 and BattVltgSwd2 is open
_22
ES003A
PwrDiscnctSequenceA: PwrDiscnctSequenceA are the necessary steps performed by this function
_74
before the power disconnect is allowed to be closed.
ES003A
PwrDiscnctSequenceB: PwrDiscnctSequenceB are the necessary steps performed by this function after
_75
the power disconnect has been closed.
Page 3 of 6
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ID
ES003A_PowerDisconnect
ES003A
3 Requirements
_3
ES003A
3.1 Primary Functional Requirements
_25
ES003A
The "Power Disconnect" Function shall verify that the PowerDisconnect is not stuck closed at
_26
initialization once per Ignition Cycle.
ES003A
3.2 Hardware Requirements
_27
ES003A
NONE
_48
ES003A
3.3 Software Requirements
_28
ES003A
3.3.1 Special Execution Requirements
_97
ES003A
The "Power Disconnect" function shall provide mechanism to split its startup procedure into pre-close
_98
(PwrDiscnctSequenceA) and post-close (PwrDiscnctSequenceB). This is necessary because a separate
function is actually responsible for closing the power disconnect.
ES003A
The "Power Disconnect" Function shall provide mechanism for its startup sequences to wait for
_99
StrtUpSt to performs its actions.
ES003A
3.3.2 Functional Requirements
_53
ES003A
3.3.2.1 Sub-Function: Calculate Delta Voltage
_56
ES003A
The "Power Disconnect" Function shall calculate DeltaVltg1 for BattVltgSwd1 as below:
_50
DeltaVltg1 = Abs(Min(PwrDiscnctMaxSwdVltg, BattVltg) - BattVltgSwd1);
ES003A
The "Power Disconnect" Function shall calculate DeltaVltg2 for BattVltgSwd2 as below:
_76
DeltaVltg2 = Abs(Min(PwrDiscnctMaxSwdVltg, BattVltg) - BattVltgSwd2); (Only when IvtrCnt =
2)
ES003A
3.3.2.2 Sub-Function: Power Disconnect Sequence A Control
_46
ES003A
The "Power Disconnect" Function shall verify if the EPS Primary Disconnect is not stuck closed in
_47
PwrDiscnctSequenceA.
Page 4 of 6
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ID
ES003A_PowerDisconnect
ES003A
The "Power Disconnect" Function shall reach conclusion PwrDiscnctATestCmpl = TRUE within 10s
_87
(CBE) under all conditons.
ES003A
3.3.2.3 Sub-Function: Power Disconnect Sequence B Control
_61
ES003A
The "Power Disconnect" Function shall perform post-close sequences during PwrDiscnctSequenceB.
_82
ES003A
The "Power Disconnect" Function shall reach conclusion for PwrDiscnctBTestCmpl = TRUE within
_88
10s (CBE) under all conditions.
ES003A
3.4 Diagnostic Requirements
_29
ES003A
3.4.1 Power Disconnect Fault for Inverter1 at Init (NTC 0x042)
_30
ES003A
3.4.1.1 Required Debounce Strategy
_32
ES003A
The "Power Diconnect" Function shall use the ISO Based Error Accumulator strategy for NTC 0x042.
_42
ES003A
3.4.1.2 Requirements to Perform Diagnostic Test Conditions
_33
ES003A
The "Power Disconnect" Function shall perform the test for NTC 0x42 during PwrDiscnctSequenceA.
_86
ES003A
3.4.1.3 Test Condition Negative Requirements
_35
ES003A
The "Power Disconnect" Function shall provide a negative result on the test condition for NTC 0x042.0
_91
when DeltaVltg1 < PwrDiscnctOpenThd
ES003A
3.4.1.4 Test Condition Positive Requirements
_36
ES003A
The "Power Disconnect" Function shall provide a positve result on the test condition for NTC 0x042
_92
when none of the negative result requirements are satisfied.
ES003A
3.4.2 Power Disconnect Fault for Inverter2 at Init (NTC 0x4A)
_31
ES003A
3.4.2.1 Required Debounce Strategy
_37
ES003A
The "Power Diconnect" Function shall use the ISO Based Error Accumulator strategy for NTC 0x04A.
_43
ES003A
3.4.2.2 Requirements to Perform Diagnostic Test Conditions
_38
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ID
ES003A_PowerDisconnect
ES003A
The "Power Disconnect" Function shall perform the test NTC 0x4A during PwrDiscnctSequenceA
_89
when IvtrCnt = 2.
ES003A
3.4.2.3 Test Condition Negative Requirements
_39
ES003A
The "Power Disconnect" Function shall provide a negative result on the test condition for NTC
_93
0x04A.0 when DeltaVltg2 < PwrDiscnctOpenThd
ES003A
3.4.2.4 Test Condition Positive Requirements
_40
ES003A
The "Power Disconnect" Function shall provide positve result on the test condition for NTC 0x04A
_95
none of the negative result requirements are satisfied.
Page 6 of 6
Printed Thursday, March 26, 2015
4 - ES003A_PwrDiscnct_requirements
Table of Contents
List of Tables
- 1.1. ES003A_PwrDiscnct Version Information
- 2.1. Artifacts linked in model
- 3.1. Objects in ES003A_PwrDiscnct/PwrDiscnct that have Requirements Traceability Links
- 4.1. ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1 Requirements Traceability Data
- 4.2. Objects in ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1 that have Requirements Traceability Links
- 5.1. ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1/PwrDiscnctSequenceB Requirements Traceability Data
- 6.1. ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1/PwrDiscnctSequenceA/SetNtcSts1 Requirements Traceability Data
- 7.1. ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1/PwrDiscnctSequenceA/SetNtcSts2 Requirements Traceability Data
- 8.1. Objects in "PwrDiscnctSequenceA" that have requirements
Table 1.1. ES003A_PwrDiscnct Version Information
| ModelVersion | 1.658 | ConfigurationManager | None |
| Created | Fri Feb 13 16:33:04 2015 | Creator | BZ9NJH |
| LastModifiedDate | Fri Apr 10 11:57:01 2015 | LastModifiedBy | BZ9NJH |
Table 2.1. Artifacts linked in model
| ID | Artifact names stored by RMI | Last modified | # links |
|---|---|---|---|
| DOC1 | 0000c467 (/ESG Group/FDD Module Requirements/EA4 Specific/ES003A_PwrDiscnct) | 26 March 2015 by Rakesh Prabhakara | 28 |
.
Table 3.1. Objects in ES003A_PwrDiscnct/PwrDiscnct that have Requirements Traceability Links
.
Table 4.1. ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1 Requirements Traceability Data
| Link# | Link Description | Link Target (document name and location ID) |
|---|---|---|
| 1. | "REQ: ES003A_98" | DOORS module 0000c467 (/ESG Group/FDD Module Requirements/EA4 Specific/ES003A_PwrDiscnct), object ES003A_98 |
Table 4.2. Objects in ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1 that have Requirements Traceability Links
.
Table 5.1. ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1/PwrDiscnctSequenceB Requirements Traceability Data
| Link# | Link Description | Link Target (document name and location ID) |
|---|---|---|
| 1. | "REQ: ES003A_82" | DOORS module 0000c467 (/ESG Group/FDD Module Requirements/EA4 Specific/ES003A_PwrDiscnct), object ES003A_82 |
| 2. | "REQ: ES003A_88" | DOORS module 0000c467 (/ESG Group/FDD Module Requirements/EA4 Specific/ES003A_PwrDiscnct), object ES003A_88 |
.
Table 6.1. ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1/PwrDiscnctSequenceA/SetNtcSts1 Requirements Traceability Data
| Link# | Link Description | Link Target (document name and location ID) |
|---|---|---|
| 1. | "REQ: ES003A_42" | DOORS module 0000c467 (/ESG Group/FDD Module Requirements/EA4 Specific/ES003A_PwrDiscnct), object ES003A_42 |
.
Table 7.1. ES003A_PwrDiscnct/PwrDiscnct/PwrDiscnctPer1/PwrDiscnctSequenceA/SetNtcSts2 Requirements Traceability Data
| Link# | Link Description | Link Target (document name and location ID) |
|---|---|---|
| 1. | "REQ: ES003A_43" | DOORS module 0000c467 (/ESG Group/FDD Module Requirements/EA4 Specific/ES003A_PwrDiscnct), object ES003A_43 |
.
(1) | |
(2) | GetNtcQlfrSts |
(3) | |
(4) | |
(5) | |
(6) | |
(7) | {PwrDiscnctATestCmpl = 1;} |
(8) | {PwrDiscnctATestCmpl = 0;} |
(9) | |
(10) | {PwrDiscnct1Qlfr = GetNtcQlfrSts(NTCNR_0X042)} |
(11) | |
(12) | |
(13) | {PwrDiscnctATestCmpl = 0;} |
(14) | |
(15) | |
(16) | {... |
Table 8.1. Objects in "PwrDiscnctSequenceA" that have requirements
.