5.8. HELLA Rain Light Sensor LIN Driver - HellaRainLiSnsrDrvr

• Overview

• Functions

• Ports

• Parameters

Id	HellaRainLiSnsrDrvr
Version	main
Title	HELLA Rain Light Sensor LIN Driver
System	Exterior Lighting
Document Type	Application Software Component Specification Preview

5.8.1. Overview

The Hella Rain Light Sensor Driver component interfaces with the Hella rain and light sensor hardware. It reads sensor data over LIN and provides it to other components over CAN. It also allows configuration of the sensor via calibration parameters.

5.8.2. Functions

	Title	Description
1	Read Sensor Data	Reads rain intensity, light levels, glass temperature, dew point temperature and cabin humidity from the sensor over LIN and provides the data on CAN.
2	Configure Sensor	Allows configuration of the sensor behavior via calibration parameters such as light sensitivity, rain function activation, wiper type, etc.

5.8.3. Ports

	Id	Direction	Data Type	Dimensions	Unit	Description	Keywords
1	LinSolDa	Incoming	Bus: LIN_SOLAR_DATA_t	[1]		Solar data	Lin Solar Data
2	LinSolDaVld	Incoming	boolean	[1]		Solar data validity	Lin Solar Data Valid
3	LinClimDa	Incoming	Bus: LIN_CLIMATE_DATA_t	[1]		Climate data from rain light sensor - humidity - temperature	Lin Climate Data
4	LinClimDaVld	Incoming	boolean	[1]		Climate data validity	Lin Climate Data Valid
5	LinLiDaRaw	Incoming	Bus: LIN_LIGHT_DATA_RAW_t	[1]		Light data from rain light sensor	Lin Light Data Raw
6	LinLiDaRawVld	Incoming	boolean	[1]		Light data validity	Lin Light Data Raw Valid
7	LinRainLiDa	Incoming	Bus: LIN_RAIN_LIGHT_DATA_t	[1]		Rain light data from rain light sensor - wiper speed - sensor state - ligth switch - raw sensor values	Lin Rain Light Data
8	LinRainLiDaVld	Incoming	boolean	[1]		Rain light data validity	Lin Rain Light Data Valid
9	VehSpd	Incoming	single	[1]	km/h	Vehicle speed	Vehicle Speed
10	VehSpdVld	Incoming	boolean	[1]		Vehicle speed validity	Vehicle Speed Valid
11	VehSt	Incoming	Enum: CmnenaVehSt	[1]		Vehicle state	Vehicle State
12	VehStVld	Incoming	boolean	[1]		Vehicle state validity	Vehicle State Valid
13	WiprHomePosn	Incoming	boolean	[1]		Wiper in home position	Wiper Home Position
14	WshrSt	Incoming	Enum: CmnenaOprtgSt	[1]		Washer actual state	Washer State
15	WshrStVld	Incoming	boolean	[1]		Washer actual state validity	Washer State Valid
16	WiprHomePosnVld	Incoming	boolean	[1]		Wiper in home position validity	Wiper Home Position Valid
17	AmbAirT	Incoming	single	[1]	°C	Ambient air temperature	Ambient Air Temperature
18	AmbAirTVld	Incoming	boolean	[1]		Ambient air temperature validity	Ambient Air Temperature Valid
19	WiprArbdReq	Incoming	Enum: CmnenaWiprMod	[1]		Wiper arbitrated request	Wiper Arbitrated Request
20	WiprArbdReqVld	Incoming	boolean	[1]		Wiper arbitrated request validity	Wiper Arbitrated Request Valid
21	LinSnsrCfgDa	Outgoing	Bus: LIN_SENS_CONFIG_DATA_t	[-1]		Sensor configuration	Lin Sensor Configuration Data
22	LinVehDa	Outgoing	Bus: LIN_VEH_DATA_t	[-1]		Vehicle data for sensor - wiper mode - ignition - air temperature - speed	Lin Vehicle Data
23	LinSnsrCfgDaSnd	Outgoing	boolean	[1]		Flag to send sensor configuration data	Lin Sensor Configuration Data Send
24	LinVehDaSnd	Outgoing	boolean	[1]		Flag to send vehicle data	Lin Vehicle Data Send
25	LiSnsrOnOffReq	Outgoing	Enum: CmnenaAcvnSt	[1]		Beam request from light sensor	Light Sensor On Off Request
26	LiSnsrErr	Outgoing	Enum: CmnenaSysNotifSt	[1]		Light sensor state (ok/fault)	Light Sensor Error
27	ScrT	Outgoing	single	[1]	°C	Windscreen temperature	Screen Temperature
28	ScrTVld	Outgoing	boolean	[1]		Windscreen temperature validity	Screen Temperature Valid
29	ScrHum	Outgoing	single	[1]	%	Windscreen humidity	Screen Humidity
30	ScrHumVld	Outgoing	boolean	[1]		Windscreen humidity validity	Screen Humidity Valid
31	SolLoa	Outgoing	uint16	[1]	lux	Ambient light level	Solar Load
32	SolLoaVld	Outgoing	boolean	[1]		Ambient light level validity	Solar Load Valid
33	RainDa	Outgoing	Enum: CmnenaWiprMod	[1]		Wiper requested mode from rain sensor	Rain Data

5.8.4. Parameters

	Id	Data Type	Dimensions	Range	Unit	Description	Keywords
1	HellarlsCalSigTiout	uint8	[1,1]	Min: 0, Max: 100	s	Calibration value for determine signal corruption	Hellarls Calibration Signal Timeout
2	HellarlsHumSnsrCorrn	uint8	[1,1]	Min: 0, Max: 3		Calibration param : 0 - humidity sensor correction not active , 1 - humidity sensor correction active 1 , 2 - humidity sensor correction active 2	Hellarls Humidity Sensor Correction
3	HellarlsEnaCfg	boolean	[1,1]	Min: 0, Max: 1		0 - disable SENS_CONFIG_DATA msg Tx, 1 - enable	Hellarls Enable Configuration
4	HellarlsSteerWhlTyp	uint8	[1,1]	Min: 0, Max: 3		Calibration Steering wheel: 0 - left hand drive , 1 - right hand drive	Hellarls Steering Wheel Type
5	HellarlsSpdLi	uint8	[1,1]	Min: 0, Max: 3		Calibration param : 0 - speed light not active , 1 - speed light active	Hellarls Speed Light
6	HellarlsSpdThdHys	single	[1,1]	Min: 0, Max: 250	kph	Vehicle speed hysteresis	Hellarls Speed Threshold Hysteresis
7	HellarlsSpdThd	single	[1,1]	Min: 0, Max: 250	kph	Vehicle speed threshold between high and low	Hellarls Speed Threshold
8	HellarlsScrTyp	uint8	[1,1]	Min: 0, Max: 7		Determine installed windscreen type (0 - Green glas windscreen,1 - Clear glass windscreen,2 - Windscreen 2,3 - Windscreen 3)	Hellarls Screen Type
9	HellarlsRainFctAcv	uint8	[1,1]	Min: 0, Max: 3		Calibration param : 0 -rain function active , 1 - rain function not active	Hellarls Rain Function Active
10	HellarlsOvrdIg	boolean	[1,1]	Min: 0, Max: 1		Overrride ingnition value: 1 - override	Hellarls Override Ignition
11	HellarlsLiS	uint8	[1,1]	Min: 0, Max: 7		Calibration light sensitivity, value between 0 and 5	Hellarls Light Sensitivity
12	HellarlsOvrdWiprS	uint8	[1,1]	Min: 0, Max: 13		Wiper sensitivity that is sent to RLS, 0: very low; 1: low; 2: medium; 3: high; 4: very high	Hellarls Override Wiper Sensitivity
13	HellarlsWiperType	uint8	[1,1]	Min: 0, Max: 3		Calibration wiper type: 0 - 2-step wiper , 1 - multi-step wiper	Hellarls Wiper Type
14	HellarlsVehTyp	uint8	[1,1]	Min: 0, Max: 7		Calibration vehicle type value between 0 and 7	Hellarls Vehicle Type