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中央控制器的功能介绍

更新时间:2023-07-22 04:13:32 阅读：评论：0

LONDON TAXIS INTERNATIONAL LTD (LTI)

ELECTRICAL SPECIFICATION &

CONNECTOR INTERFACE DETAILS

FOR THE CENTRAL CONTROL UNIT &

ANCILLARIES

Lower Cost VERSION – MASIE 2

Includes Euro III & IV Engine support

笔记本分辨率GENERAL ELECTRICAL SPECIFICATION

MINIMUM OPERATING VOLTAGE	9V (at CCU)
MAXIMUM OPERATING VOLTAGE	16V (at CCU)
NOMINAL OPERATING VOLTAGE (engine off)	12.5V (at battery)
NOMINAL OPERATING VOLTAGE (engine on)	14.4V (at battery)
TARGET QUIESENT CURRENT FOR CCU	<20mA
LOAD DUMP PROTECTION	<40V for 400mS

All power ratings of lamps are nominal @ 12V. Current consumption figures prented in this document should be measured with the vehicle operating voltage of 14.4V as measured at the battery terminals whilst the engine is running.

TRANSIT LINK HARNESS – CCU must power up normally when the normal battery signal is removed and only and Ignition feed is provided.

NOTE 1 : The information prented in this document provides all pinout options. The features are not necessarily provided for all market variations.

NOTE 2 : Where possible unique connectors have been chon to eliminate the possibility of the incorrect cable being ud. Where this has not been possible it is required that the wiring loom is manufactured in such a way that it is very difficult to inrt a plug in the wrong socket.

NOTE 3 : The AMP 070 ries of connectors have current limitations per pin according to the information provided below (supplied by the manufacturer). Multiple contacts have be

en provided where high current circuits connect to the ECU. It is the responsibility of the vehicle manufacturer to ensure that the multiple contacts are ud appropriately so that individual contacts are not overstresd.

Wire size (mm2)	Maximum current (Amps DC)
0.2	6
0.3	8
0.8	11
0.85	15
1.25	19

Number of positions	Reduction coefficient
1	1
2-3	0.75
4-5	0.6
6-8	0.55
9-12	0.5
13 and over	0.4

NOTES - ALL ECU CONNECTORS ARE CAP HOUSINGS (PLUG TYPE BLADE CONTACTS IN A SOCKET RECEPTACLE BODY)

The following table shows the inputs required by the various parts of the system in order to generate the required outputs

‘MOM’ indicates that the input comes from a ‘biad off’ switch, button or puld signal that may only activate for a short time (EG the front wiper park signal would signal would only occur as the wiper pasd through the park position) ‘CONT’ indicates that the input comes from a latching type switch or continuous signal when activated) :-

TABLE 1 STATIC SIGNALS – EG SWITCH INPUTS ETC
INPUT NUMBER	INPUT DESCRIPTION	SWITCH TYPE ( HIGH / LOW, MOM / CONT )	SIGNAL TYPE/LEVEL	MIN SWITCH CONTACT CURRENT REQUIRED	COMMENTS
1	INDICATOR STALK LEFT	LOW CONT	0V EARTH	15mA	LOW = FLASH
2	INDICATOR STALK RIGHT	LOW CONT	0V EARTH	15mA	LOW = FLASH
3	LIGHTS SWITCH SIDE	HIGH CONT	+ BATT	5mA	HIGH = ON
4	LIGHTS SWITCH MAIN	HIGH CONT	+ BATT	15mA	HIGH = ON
5	LIGHTS FRONT FOG	HIGH CONT	+ BATT	15mA	HIGH = ON
6 **	IGNITION SWITCH	HIGH CONT	+ BATT	5mA	HIGH = ON
7 **	ACCESSORY SWITCH	HIGH CONT	+ BATT	5mA	HIGH = ON
8 **	VEHICLE BATTERY DIRECT	DC	+ BATT		INTERNAL SUPPLY
9	REVERSE GEAR SWITCH	HIGH CONT	+ BATT	5mA	HIGH = REVERSE
10***	FOOTBRAKE SWITCH	HIGH CONT	+ BATT	10A	HIGH = BRAKING
11	INTERCOM ENABLE	HIGH CONT	+ BATT	15mA	HIGH = ENABLE
12	TAXIMETER ‘STOPPED’	HIGH CONT	+ BATT	5mA	HIGH = STOPPED
13	MAIN BEAM SWITCH INPUT	HIGH CONT	+ BATT	5mA	HIGH=ACTIVE

14	WASHER FRONT	LOW MOM	0V EARTH	15mA	LOW = WASH
15	LIGHTS REAR FOG	LOW MOM	0V EARTH	15mA	LOW = ON
16	WASHER REAR	LOW MOM	小乌龟图片 0V EARTH	15mA	LOW = ON
17	WINDOWS FRONT LEFT UP	LOW MOM	0V EARTH	15mA	LOW = UP
18	WINDOW FRONT LEFT DOWN	LOW MOM	0V EARTH	15mA	LOW = DOWN
19	WINDOW FRONT RIGHT UP	LOW MOM	0V EARTH	15mA	LOW = UP
20	WINDOW FRONT RIGHT DOWN	LOW MOM	0V EARTH	15mA	LOW = DOWN
21	WINDOWS REAR LEFT UP	LOW MOM	0V EARTH	15mA	LOW=UP
22	WINDOWS REAR LEFT DOWN	LOW MOM	0V EARTH	15mA	LOW=DOWN
23	WINDOWS REAR RIGHT UP	LOW MOM	0V EARTH	15mA	词语搭配大全LOW=UP
24	WINDOWS REAR RIGHT DOWN	LOW MOM	0V EARTH	15mA	LOW=DOWN
25	HEATED REAR SCREEN	LOW MOM	0V EARTH	15mA	LOW = ON
26	CDL FRONT LOCK	LOW MOM	0V EARTH	15mA	LOW = LOCK
27	CDL FRONT UNLOCK	LOW MOM	0V EARTH	15mA	LOW = UNLOCK
28	CDL REAR LOCK	LOW MOM	0V EARTH	15mA	LOW = LOCK
29	CDL REAR UNLOCK	LOW MOM	0V EARTH	15mA	LOW = UNLOCK
30	CDL ALL LOCK	LOW MOM	0V EARTH	1mA	LOW = LOCK
31	CDL ALL UNLOCK	LOW MOM	0V EARTH	1mA	LOW = UNLOCK

32 **	VEHICLE GROUND		0V EARTH		INTERNAL SUPPLY
33	WHEELCHAIR BELT SWITCH	LOW CONT	0V EARTH	15mA	LOW = WARNING
34	HAZARD SWITCH	LOW CONT	0V EARTH	15mA	LOW = FLASH
35	DOOR FRONT RIGHT SWITCH	LOW CONT	0V EARTH	15mA	LOW = OPEN
36	DOOR FRONT LEFT SWITCH	LOW CONT	0V EARTH	15mA	LOW = OPEN
37	DOOR REAR RIGHT SWITCH	LOW CONT	0V EARTH	15mA	LOW = OPEN
38	DOOR REAR LEFT SWITCH	LOW CONT	0V EARTH	15mA	LOW = OPEN
39	BONNET SWITCH	LOW CONT	0V EARTH	15mA	LOW = OPEN
40	BOOT SWITCH	LOW CONT	0V EARTH	15mA	LOW = OPEN
41	WIPER FRONT FAST	LOW CONT	0V EARTH	15mA	LOW = ON
42	WIPER FRONT SLOW	LOW CONT	0V EARTH	15mA	LOW = ON
43	WIPER FRONT INTERMITTENT	LOW CONT	0V EARTH	15mA	LOW = ON
44	WIPER REAR INTERMITTENT	LOW CONT	0V EARTH	15mA	LOW = ON
45	WIPER REAR SLOW	LOW CONT	0V EARTH	15mA	LOW = ON
46	MOTION LOCK RIGHT OK	LOW CONT	0V EARTH	15mA	LOW = LOCKED
47	MOTION LOCK LEFT OK	LOW CONT	0V EARTH	15mA	LOW = LOCKED
48	LOW WASHER SENSOR	LOW CONT	0V EARTH	15mA	LOW = WARNING
49	FRONT INTERIOR LAMP SWITCH	LOW CONT	0V EARTH	15mA	LOW = ON
50	REAR INTERIOR LAMP SWITCH	LOW CONT	0V EARTH	15mA	LOW = ON
51	DRIVERS SEAT BELT	LOW CONT	0V EARTH	15mA	LOW=BELT ENGAGED
52	KEYSWITCH	LOW CONT	0V EARTH	15mA	LOW=ACTIVE
53	HANDBRAKE	LOW CONT	0V EARTH	5mA	LOW=ACTIVE

** means signal is ud for internal ECU power feed.

*** input ud to power brake lamps as well as signal to ECU for motion locking.

NOTE: Switch wetting current can be reduced if the switch is permanently attached to an external load, e.g lamp, motor. ECU only needs to provide a pull up/down in the event that the load is disconnected. Minimum wetting current specified with a supply Voltage of 12V to the ECU.

TABLE 2 DYNAMIC SIGNALS – EG AC AUDIO, DC PULSED ETC
INPUT NUMBER	INPUT DESCRIPTION	SIGNAL FORM	SIGNAL TYPE/LEVEL	VOLTAGE RANGE	COMMENTS
54	SPEED TRANSDUCER SIGNAL (+)	DIGITAL	PULSE TRAIN	<11V PK SQ WAVE	-
55	ENGINE MANAGEMENT INPUT	DIGITAL	OPEN COLLECTOR	CCU PULL UP TO 12VOLTS
56	FRONT WIPER INTERMITTENT SPEED CONTROL	ANALOGUE	RESISTANCE WRT GROUND	1K OHMS MIN TO 0 OHMS MAX	ADC INPUT
57	MICROPHONE FRONT SIGNAL IN + BIAS OUT	ANALOGUE	AUDIO	<10mVac	-
58	MICROPHONE FRONT SCREEN	-	-	GROUND	-
59	MICROPHONE REAR LEFT SIGNAL IN + BIAS OUT	ANALOGUE	AUDIO	穷的说说朋友圈<10mVac	-
60	MICROPHONE REAR LEFT SCREEN	-	-	GROUND	-
61	MICROPHONE REAR RIGHT SIGNAL + BIAS	ANALOGUE	AUDIO	<10mVac	-
62	MICROPHONE REAR RIGHT SCREEN	-	-	GROUND	-
63	ULTRASONICS RX HIGH	ANALOGUE	DC LEVEL (OUT) WITH SUPERIMPOSED CURRENT MODULATED INPUT (VIOLATION INPUT)	>11VDC	RX POWER (OUT), AND SIGNAL INPUT
64	ULTRASONICS RX LOW	ANALOGUE	DC LEVEL (OUT) WITH SUPERIMPOSED CURRENT MODULATED INPUT (VIOLATION INPUT RETURN)	<1VDC	RX POWER (OUT), AND SIGNAL INPUT RETURN
65	ULTRASONICS RX SCREEN	-	-	GROUND	MAY NOT BE REQUIRED – INCLUDE FOR ‘BELT AND BRACES’
66	INTERCOM VOLUME FRONT SIGNAL	ANALOGUE	DC	2 mA CONSTANT CURRENT FEED	-
67	INTERCOM VOLUME GROUND	-	-	GROUND	-
68	USB DIAGNOSTICS COMMS USBDP DIFFERENTIAL SIGNAL POSITIVE BI DIRECTIONAL	DIGITAL	USB	4.9 VOLTS PEAK WRT GROUND	-
69	USB DIAGNOSTIC COMMS USBDM DIFFERENTIAL SIGNAL NEGATIVE,BI DIRECTIONAL	DIGITAL	USB	4.9 VOLTS PEAK WRT GROUND	-
70	TOUCHKEY SIGNAL	DIGITAL	COMMS	5V PEAK WRT GROUND
71	TOUCHKEY RETURN			GROUND	SIGNAL RETURN

4.1.1 Outputs

The following table details the outputs required from the main ECU:-

金色的鱼钩读后感自我束缚

OUTPUT NUMBER	OUTPUT DESCRIPTION	OUTPUT DRIVE	SIGNAL VOLTAGE / CURRENT REQUIREMENT	COMMENTS
1	LEFT TURN INDICATORS/ HAZARDS AND LEFT INDICATOR TELLTALE	SOLID STATE HIGH SIDE DRIVE	12VDC @ 4.1A CONTINUOUS, PEAK INRUSH CURRENT LIMITED TO <50A	LAMPS = 2 x 21W + 1 x 5W +1 x 1.2W 1HZ FLASH RATE NOM, 2HZ FLASH RATE IF CURRENT DRAW <3.45A
2	RIGHT TURN INDICATORS/ HAZARDS AND RIGHT INDICATOR TELLTALE	SOLID STATE HIGH SIDE DRIVE	12VDC @ 4.1A CONTINUOUS, PEAK INRUSH CURRENT LIMITED TO <50A	LAMPS = 2 x 21W + 1 X 5W + 1 x 1.2W 1HZ FLASH RATE NOM, 2HZ FLASH RATE IF CURRENT DRAW <3.45A
3	HAZARD TELLTALE INDICATOR	SOLID STATE HIGH SIDE DRIVE	12VDC @ 0.1A CONTINUOUS, CURRENT LIMITED TO <=1A MAX	LAMPS = 1 x 1.2W MUST BE OPPOSITE PHASING TO LEFT/RIGHT INDICATOR TELLTALE
4	FRONT FOG LAMPS & TELLTALE LAMP	SOLID STATE HIGH SIDED DRIVE	12VDC @ 10A CONTINUOUS, 100A MAX SURGE	LAMPS = 2 x 55W + 1 x 1.2W
5	REAR FOG LAMP AND REAR FOG LAMP TELLTALE	SOLID STATE HIGH SIDED DRIVE	12VDC @ 4A CONTINUOUS, 30A MAX SURGE	LAMPS = 2 x 21W + 1 x 1.2W
6	WIPER FRONT FAST	SOLID STATE HIGH SIDED DRIVE	12VDC @ 6A CONTINUOUS, 15A MAX SURGE	DRIVES FAST WINDING ONLY
7	WIPER FRONT SLOW/ INTERMITTENT	SOLID STATE HIGH SIDED DRIVE	12VDC @ 6A CONTINUOUS, 15A MAX SURGE	DRIVES SLOW WINDING ONLY
8	WIPER FRONT PARK SWITCH 'COMMON'	RETURN INPUT FROM WIPER MOTOR	12VDC @ 6A CONTINUOUS, 15A MAX SURGE	FEEDBACK FROM MOTOR
9	WIPER REAR SLOW/ INTERMITTENT	SOLID STATE HIGH SIDED DRIVE	12VDC @ 5A CONTINUOUS, 15A MAX SURGE	DRIVES SLOW WINDING ONLY
10 吸血鬼天赋	WIPER REAR PARK SWITCH	RETURN INPUT FROM WIPER MOTOR	12VDC @ 5A CONTINUOUS, 15A MAX SURGE	FEEDBACK FROM MOTOR
11	MOTION LOCK LEFT ACTUATOR	DC INDUCTIVE, SOLID STATE, HIGH SIDE DRIVE	12VDC @ 1.5A CONTINUOUS, 10A MAX SURGE,	ON = LOCKED
12	MOTION LOCK RIGHT ACTUATOR	DC INDUCTIVE, SOLID STATE HIGH SIDE DRIVE	12VDC @ 1.5A CONTINUOUS,10A MAX SURGE	ON = LOCKED
13	FRONT COURTESY LAMPS	DC, RESISTIVE, HIGH SIDE SOLID STATE PWM DRIVE	12V PULSED DC, MAX CURRENT 2A. SQUAREWAVE, WITH 0% TO 100% PWM VARIABLE MARK SPACE RATIO	LAMPS = 26W. INSTANT ‘ON’ WITH SLOW ‘OFF’ FADE
14	REAR COURTESY LAMPS	DC, RESISTIVE, HIGH SIDE SOLID STATE PWM DRIVE	12V PULSED DC MAX CURRENT 4A. SQUAREWAVE, WITH 0% TO 100% PWM VARIABLE MARK SPACE RATIO	LAMPS = 40W INSTANT ‘ON’ WITH SLOW ‘OFF’ FADE
15	HEATED REAR SCREEN	DC RESISTIVE, HIGH SIDE SOLID STATE DRIVE	12VDC @ 16A CONTINUOUS, CURRENT LIMITED TO <=22A MAX	INCLUDES TELLTALE & HEATED MIRRORS
16	LEFT DIPPED BEAM	HIGH SIDED SOLID STATE SWITCH	12VDC @ 5A CONTINOUS, CURRENT LIMITED TO >=5A MAX INRUSH CURRENT =50A	LAMP = 55W HEADLAMP BULB
17	RIGHT DIPPED BEAM	HIGH SIDED SOLID STATE SWITCH	12VDC @ 5A CONTINOUS, CURRENT LIMITED TO >=5A MAX INRUSH CURRENT =50A	LAMP = 55W HEADLAMP BULB
18	BRAKE LAMPS	NOT SWITCHED CURRENT MONITORING ONLY	10A FUSED FEED FROM BRAKE PEDAL SWITCH	LAMPS = 2 x 21W + 4 x 5W
19	WASHER FRONT/REAR HI	SOLID STATE ‘H’ BRIDGE	12VDC @ 6A CONTINUOUS, 10A MAX SURGE	BIPOLAR PUMP DIRECTS FLOW TO FRONT OR REAR
20	WASHER FRONT/REAR LO	SOLID STATE ‘H’ BRIDGE	12VDC @ 6A CONTINUOUS, 10A MAX SURGE	BIPOLAR PUMP DIRECTS FLOW TO FRONT OR REAR
21	WINDOW FRONT LEFT MOTOR HI	SOLID STATE ‘H’ BRIDGE	12VDC @ CURRENT LIMITED TO 12A (SOFTWARE DEFINED)	BIPOLAR BRIDGE MOTOR DRIVE
22	WINDOW FRONT LEFT MOTOR LO	SOLID STATE ‘H’ BRIDGE	12VDC @ CURRENT LIMITED TO 12A (SOFTWARE DEFINED)	BIPOLAR BRIDGE MOTOR DRIVE
23	WINDOW FRONT RIGHT MOTOR HI	SOLID STATE ‘H’ BRIDGE	12VDC @ CURRENT LIMITED TO 12A (SOFTWARE DEFINED)	BIPOLAR BRIDGE MOTOR DRIVE
24	WINDOW FRONT RIGHT MOTOR LO	SOLID STATE ‘H’ BRIDGE	12VDC @ CURRENT LIMITED TO 12A (SOFTWARE DEFINED)	BIPOLAR BRIDGE MOTOR DRIVE
25	WINDOW REAR LEFT MOTOR HI	SOLID STATE ‘H’ BRIDGE	12 VDC @ CURRENT LIMITED TO 12A (SOFTWARE DEFINED)	BIPOLAR BRIDGE MOTOR DRIVE
26	WINDOW REAR LEFT MOTOR LO	SOLID STATE ‘H’ BRIDGE	12 VDC @ CURRENT LIMITED TO 12A (SOFTWARE DEFINED)	BIPOLAR BRIDGE MOTOR DRIVE
27	WINDOWS REAR RIGHT MOTOR HI	SOLID STATE ‘H’ BRIDGE	12 VDC @ CURRENT LIMITED TO 12A (SOFTWARE DEFINED)	BIPOLAR BRIDGE MOTOR DRIVE
28	WINDOWS REAR RIGHT MOTOR LO	SOLID STATE ‘H’ BRIDGE	12 VDC @ CURRENT LIMITED TO 12A (SOFTWARE DEFINED)	BIPOLAR BRIDGE MOTOR DRIVE
29	CENTRAL DOOR LOCK FRONT MOTOR HI	SOLID STATE ‘H’ BRIDGE	12VDC @ 8A TYPICAL PULSE (2 MOTORS)	BIPOLAR BRIDGE MOTOR DRIVE
30	CENTRAL DOOR LOCK FRONT MOTOR LO	SOLID STATE ‘H’ BRIDGE	12VDC @ 8A TYPICAL PULSE (2 MOTORS)	BIPOLAR BRIDGE MOTOR DRIVE
31	CENTRAL DOOR LOCK REAR MOTOR HI	SOLID STATE ‘H’ BRIDGE	12VDC @ 8A TYPICAL PULSE (2 MOTORS)	BIPOLAR BRIDGE MOTOR DRIVE
32	CENTRAL DOOR LOCK REAR MOTOR LO	SOLID STATE ‘H’ BRIDGE	12VDC @ 8A TYPICAL PULSE (2 MOTORS)	BIPOLAR BRIDGE MOTOR DRIVE
33	MOTION LOCK LEFT DASH TELLTALE LAMP	LOW SIDED SOLID STATE SWITCH	12VDC @ 0.1A CONTINUOUS, CURRENT LIMITED TO <=1A MAX	LAMP = 1.2W MAX OR LED DRIVE
34	MOTION LOCK RIGHT DASH TELLTALE LAMP	LOW SIDED SOLID STATE SWITCH	12VDC @ 0.1A CONTINUOUS, CURRENT LIMITED TO <=1A MAX	LAMP = 1.2W MAX OR LED DRIVE
35	MOTION LOCK SYSTEM ‘OK’ DASH TELLTALE LAMP	LOW SIDED SOLID STATE SWITCH	12VDC @ 0.1A CONTINUOUS, CURRENT LIMITED TO <=1A MAX	LAMP = 1.2W MAX OR LED DRIVE
36	LOW WASHER WARNING LAMP	LOW SIDED SOLID STATE SWITCH	12VDC @ 0.1A CONTINUOUS, CURRENT LIMITED TO <=1A MAX	LAMP = 1.2W MAX OR LED DRIVE
37	ALARM SIREN COMMUNICATIONS	COMMS SIGNAL	5V PK TO PK @ 20mA MAX	BI-DIRECTIONAL COMMS
38	4028PPM SCALED TAXIMETER SIGNAL	CURRENT LIMITED, LOW SIDE, SQUARE WAVE DRIVE WRT GROUND, WITH INTERNAL PULL-UP	12VDC PEAK SQUAREWAVE	NO TAMPER PROTECTION REQUIRED BY PCO.
39	ULTRASONICS TX POWER HI	平整的拼音 SWITCHED POWER LINE	12VDC @ <20mA	CPU CONTROLLED TX POWER LINE
40	ULTRASONICS TX POWER LO	GROUND	GROUND	-
41	FRONT INTERCOM SPEAKER +VE	ANALOGUE	12V PK to PK	POWER FUSED WITH 2.5A THERMAL FUSE
42	FRONT INTERCOM SPEAKER –VE	GROUND	GROUND	-
43	REAR INTERCOM SPEAKER +VE	ANALOGUE	12V PK to PK	-
44	REAR INTERCOM SPEAKER -VE	GROUND	GROUND	-
45	INDUCTION LOOP +VE	ANALOGUE	24V PK to PK	-
46	INDUCTION LOOP –VE	ANALOGUE	24V PK to PK	-
47	BATTERY DISCHARGE PROTECTION	LOW SIDED OUTPUT	OUTPUT PULSED TO CONTROL BISTABLE RELAY	NOT USED

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