13.8. Battery Thermal System Valve Control - BatThermSysVlvCtl

• Overview

• Functions

• Ports

• Parameters

Id	BatThermSysVlvCtl
Title	Battery Thermal System Valve Control
System	Thermal
Document Type	Application Software Component Specification Preview

13.8.1. Overview

The Battery Thermal System Valve Control component controls the valves in the battery thermal system. It determines the valve positions based on the battery thermal system state, climate control system state, and ambient cooling potential. The component detects faults in the valve currents and sets fault flags accordingly.

13.8.2. Functions

	Title	Description
1	Determine Valve Positions	Determines the positions of the chiller, heater, radiator, radiator bypass and isolation valves based on the battery thermal system state, climate control system state, and ambient cooling potential.
2	Detect Valve Faults	Detects open circuit and short circuit faults in the chiller, heater, radiator, radiator bypass, and isolation valves based on the valve currents. Sets fault flags when faults are detected for the defined fault detection time.

13.8.3. Ports

	Id	Direction	Data Type	Dimensions	Unit
1	BTSSystemState	Incoming	Enum: VtSig_BTSSystemState_t	[-1]	inherit
2	CCCSystemState	Incoming	Enum: VtSig_CCCSystemState_t	[-1]	inherit
3	ChlrCur	Incoming	single	[-1]	inherit
4	HeatrCur	Incoming	single	[-1]	inherit
5	RadrCur	Incoming	single	[-1]	inherit
6	RadrBypCur	Incoming	single	[-1]	inherit
7	AmbAirT	Incoming	single	[-1]	inherit
8	CooltTAct	Incoming	single	[-1]	inherit
9	PmpSpdAct	Incoming	uint8	[-1]	inherit
10	LowestAverageMDTemp	Incoming	int16	[-1]	inherit
11	HighestAverageMDTemp	Incoming	int16	[-1]	inherit
12	IsolnVlvCur	Incoming	single	[-1]	inherit
13	CoolgCrit	Incoming	boolean	[-1]	inherit
14	ChillrCurrSt	Incoming	boolean	[-1]	inherit
15	HtrCurrSt	Incoming	boolean	[-1]	inherit
16	RadCurrSt	Incoming	boolean	[-1]	inherit
17	RadBypCurrSt	Incoming	boolean	[-1]	inherit
18	ChlrReq	Outgoing	uint8	[-1]	inherit
19	HeatrReq	Outgoing	uint8	[-1]	inherit
20	RadrReq	Outgoing	uint8	[-1]	inherit
21	RadrBypReq	Outgoing	uint8	[-1]	inherit
22	ChlrFlt	Outgoing	boolean	[-1]	inherit
23	HeatrFlt	Outgoing	boolean	[-1]	inherit
24	RadrFlt	Outgoing	boolean	[-1]	inherit
25	RadrBypFlt	Outgoing	boolean	[-1]	inherit
26	IsoVlvReq	Outgoing	uint8	[-1]	inherit
27	IsoVlvShortCircFlt	Outgoing	boolean	[-1]	inherit
28	IsoVlvOpenCircFlt	Outgoing	boolean	[-1]	inherit
29	MS_ThermalValveStates	Outgoing	Bus: CAN_MS_ThermalValveStates_t	[-1]	inherit
30	MS_ThermalValveStatesSnd	Outgoing	boolean	[1]	inherit

13.8.4. Parameters

	Id	Data Type	Dimensions	Range	Unit	Description
1	BtsvcAmbCoolgMargLowrThd	single	[1,1]	Min: 0, Max: 20		Lower threshold to consider cooling availability from ambient air
2	BtsvcAmbCoolgMargUpprThd	single	[1,1]	Min: 0, Max: 20		Upper threshold to consider cooling availability from ambient air
3	BtsvcFltCurMax	single	[1,1]	Min: 0, Max: 3	A	Maximum current draw expected by the coolant valve in continuous operation
4	BtsvcFltCurMin	single	[1,1]	Min: 0, Max: 3	A	Minimum current draw expected by the coolant valve in continuous operation
5	BtsvcFltDetnT	single	[1,1]	Min: 0, Max: 10	s	Minimum time duration with open and short circuit fault conditions true before raising a fault condition for the coolant valve
6	BtsvcFltRst	boolean	[1,1]	Min: 0, Max: 1		Reset faults for the Chiller, Heater, Radiator and Radiatro Bypass valves
7	BtsvcIsolnFltCurMax	single	[1,1]	Min: 0, Max: 3	A	Maximum current draw expected by the Isolation valve in continuous operation
8	BtsvcIsolnFltCurMin	single	[1,1]	Min: 0, Max: 3	A	Minimum current draw expected by the Isolation valve in continuous operation
9	BtsvcIsolnFltDetnT	single	[1,1]	Min: 0, Max: 10	s	Minimum time duration with open and short circuit fault conditions true before raising a fault condition for Isolation Valve
10	BtsvcVlvClsgTiDly	single	[1,1]	Min: 0, Max: 60	s	Delay between simultaneous closing of Chilller and Heater of Radiator and Radiator Bypass valves
11	BtsvcDeltaTCooltMap	single	[9,4]	Min: , Max:		Coolant dT map depending of CoolantHVBM dT and BTS Coolant Pump Duty Cycle COLUMNS “0%