configured Shanghai Volkswagen Sunny 1.6 L and 2.0 L car body control module BCM genus integration the mass PQ25 production platform higher product, and its essence is a vehicle-mounted network control unit, the amenity system control unit and a data bus control unit integrated in one, responsible for managing vehicle electrical and electronic systems. The system includes: an electrical load management, generator excitation control, CAN-BUS data transmission, cruise control and the vehicle body collector (turn signal lamp, emergency warning lights, brake lights, horn, Windscreen washer, wiper, mirrors, the rear window heating, heated seats, power windows and central locking and the like). Starter relay also has automatic models, reversing lights and the shift lock lever auxiliary control function. BCM has a powerful self-diagnostic function, the diagnostic address is 09, identification code J519. BCM connector has two terminals T73 is connected to the peripheral circuit, T73a black, T73b is white, the lower mounting position (FIG. 1) at the left side of the instrument panel relay.
FIG 1
peripheral circuit
1.BCM the
Like the BCM and the other control unit, peripheral circuits can be divided into a power supply circuit output circuit signal input circuit and a control actuator working, are described as follows:
(1) BCM power supply circuit (FIG. 2)
FIG. 2
corresponding to different control target, BCM control unit 8 is provided with an electrical input from the power bus normally numbers KL30 line.
Line No. ①30 rarr; fuse SC16 (7.5 A) rarr; J519 of T73b / 39 terminal, as often the control unit power supply.
Line No. ②30 rarr; fuse SC18 (10 A) rarr; J519 is T73a / 66 terminal, the power supply for indoor lighting.
Line No. ③30 rarr; fuse SC19 (7.5 A) rarr; J519 is T73a / 64 terminal, as mirror heating power.
Line No. ④30 rarr; fuse SC46 (25 A) rarr; J51T73b / 13 terminal 9, for the turn signal, brake light power.
Line No. ⑤30 rarr; fuse SC47 (25 A) rarr; J519 is T73a / 68 terminal, and a wiper motor of windscreen cleaning power.
Line No. ⑥30 rarr; fuse SC48 (25 A) rarr; J519 of T73b / 67 terminal, the heating power of the rear window.
Line No. ⑦30 rarr; fuse SC49 (20 A) rarr; J519 is T73a / 16 terminal, is powered central locking.
Line No. ⑧30 rarr; fuse SC50 (20 A) rarr; terminal J519T73a / 73, the power supply for the horn.
In addition to the power supply line No. 30, BCM need Line Terminal KL15, KL75 number of power lines. To circuit line 15 are: an ignition switch D / 15rarr; T73a / 44 terminals of J519, J519 power to the gateway J533. It CAN bus and the LIN bus wake-up, normal operation is a necessary condition J519 (except for the central locking and the theft of the vehicle body function), but also reflects the position of the ignition switch. 2 line 75 to the circuit is: D / 75rarr; fuse SC9 (5 A) rarr; J519 of T73b / 11 terminal, is powered down lights; D / 75rarr; J519 of T73b / 51 terminal, reflects the position of the ignition switch . Line circuit 86s to be: D / 86srarr; fuse SC10 (5 A) rarr; J519 is T73a / 42 terminal, reflects the position of the ignition switch, the remote controller constituting the latch condition of the door.
BCM control unit a total of four ground lines, are connected to the J519 T73a / 14, T73a / 31, T73a / 70 and T73b / 60 terminal.
15, 75 and power status signal line 86s in the measured value display group 001, No. 1 is a region 86s line area is 75 lines 3, 4 is a 15 line region. 30 measurements is shown in the line powered state 040 and 041 groups each set of sections.
(2) BCM electrical load detection and data bus
Line Terminal KL30 → S5 in the upper fuse holder battery fuse (5 A) → J519 of T73b / 59 terminal, and a ground terminal J519 T73b / 60 (negative electrode directly connected to the battery) constituting the input signal is detected and the power generation amount of the electrical load of the vehicle (FIG. 3). For different electrical loads, BCM corresponding management according to the following three modes.
FIG. 3
① Line Terminal KL15 ON, to activate the generator, the battery voltage is lower than 12.7 V, the control strategy by the engine control unit J220 lift engine idle speed to increase the power generation amount; battery voltage is below 12.2 V, J519 the seat heating off (oFF command sent by T73a / 36 → terminal seat heating control unit T8n / 2 terminal of J774), after heating and windshield mirror heating appliances and other larger load, and turn off the interior lighting part, such as the foot lights, turn off or reduce the power output of the automatic air conditioning system (amenity system via CAN bus).
② Line Terminal KL15 ON, the generator is not activated, when the battery voltage is below 12.2 V, lighting off the foot, automatic air conditioning and infotainment system (such as radio).
③ Line Terminal KL15 OFF, when the voltage is lower than 11.8 V, indoor lighting, and turn off the radio.
FIG. 4
J519 measured value of the supply voltage 002 sets region 2 and 060 group 1 and electrical load management status area 060 Group 2 and 3 display.
Since the data bus in the integrated control unit J533 J519, so that the power system and the comfort CAN bus system data bus at this intersection (FIG. 4). T73b / 18, T73b / 19, T73b / 20 and T73b / 21 in turn connected to the power terminal system CAN-L, CAN-H and comfort systems CAN-H, CAN-L CAN bus network is formed, between the control unit for data exchange. T73b / 17 is a LIN bus terminals, the LConnected to the IN bus from the control unit with a control unit J386 driver’s door and front passenger-side door control unit J387.
(3) and the reversing light starter circuit
Figure 5
for automatic car, the automatic transmission multifunction switch F125 through its T10s / 2 to the terminals of J519 T73b / 55 automatic transmission terminal transmits the position signal (FIG. 5). J519 is detected when the P / N signal block, the ignition switch in the starting gear, i.e., D / 50b / 50 12 V output terminal voltage signal to the J519 T73b, J519 J19 power to the starter relay (648). Circuit path is T73a / 55 → terminal J19 J519 solenoid → ground point of the circuit. J19 pull normally open contact, the battery voltage is applied to the starter magnet switch B / 50 terminal of the starter rotation. J519 is detected when the gear position is in the R F125, T73b / 12 12 V voltage output terminal so that the reversing light is lit M17, the voltage signal is applied while the parking assist control unit J446 of T16g / 6 terminals and the indoor antiglare Y7 of the mirror head T6p / 3 terminals, J446 started in accordance with the control signal from the reverse. Y7 is to effect automatic adjustment of vehicle rear reflection intensity of the incident light, to avoid dazzling of the driver’s eye, Y7 identification signal to the reverse off dimming functions.
For a manual transmission car, when starting, an ignition switch circuit approach to D / 50 → output starter B / 50 terminal, controlling the electromagnetic switch is turned on the starter rotation. Reversing light by M17 reverse light switch F4 directly controls the lighting, and the 12 V voltage signal is applied to the J519 T73b / 55 terminal, is / terminal 48 transmits information to reverse the J446 J519 identified by their T73b.
in the measurement of the BCM 038 to display the group 1 and the starter is in the suppressed state, backup light switch signal measurements in the display area 030 Group 4, reversing light control state set of measurement values 034 4 zone display. Perform a diagnostic test mode (DTM) terminal function can be tested for reversing light.
(4) turn signal control circuit
Figure 6
Open turn signal blinker switch E2 (FIG. 6) of T41 / 33 terminal A34 and the ground node (not shown) is connected. When E2 is at L side, J519 perceived T73a / 32 ground signal terminal, T73b / 14 terminal left front turn signals M5, M6 and left rear left turn signal lamps L131 output pulse current, simultaneous data transmission to the meter, activating left blinker K65; when R is the side E2, J519 identified T73a / 33 terminal is grounded, the steering T73b / 15 terminal right headlight M7, M8 and turn right after the right turn signal lamps L132 output pulse current, and activate the meter right turn indicator K94. When the emergency flashing warning light switch E3 is closed, the T73a / 28 ground signal input terminal of J519, T73a / 56 → terminal node indicator K6 A20 → 43 → ground switch E3 locations within the scintillation K6, while T73b / 14 and T73b / 15 terminals of the left and right turn signal pulsed output, while the left and right turn indicator instrument K65, K94 synchronous flashing.
blinker switch E2 position signal measurements 030 group 1 and Zone 2 shows critical flashing warning light switch E3 signal 031 group 1 and shows left and right turn measured value of the lamp control state in the 034 group 1 zone 2 display. DTM feature of necessity flashing warning lights, left and right turn lamps terminal test.
(5) The brake lamp control circuit
Figure 7
Sunny car brake light switch and the brake pedal switch F F47 integrally (FIG. 7), is arranged on the master cylinder. F is a switch which is normally open state, F47 is normally closed, as a redundant design, both the reliability of mutual authentication can signal. When the brake pedal is not, D / 15 through SC23 (5 A), all the way → F → J519 and J220, that the T80 / 23 of J519 terminals T73a / 43 terminal and at a low potential of J220. Another way → F47 → J519 and J220, J519 make the T73b / 42 J220 and the terminal T80 / 51 terminal at a high potential, the shift lever lock indicator (automatic car) on the instrument K169 lit. When the brake pedal is depressed, the brake fluid pressure at F47 and F operation, J519 recognizes that the level of the terminal voltage converter, which T73b / 16 12 V output voltage, lighting the brake lamp M21, M22 and high brake lamp M25, K169 off, while J519 T73b / 41 12 V voltage output terminals, the shift control lever lock solenoid N110 unlocking operation, the shift lever can be moved through.
In the brake switch signal measurement value display region 030 Group 3, the measured value of the brake light control state in the display area 034 Group 3, the DTM terminal function can be tested brake light.
BCM centralized control of vehicle appliances, lights so missing monitoring turn signal, brake light and reverse lamp becomes very convenient. J519 circuit upon detection of each traffic signal is less than the actual current flowing threshold value, a signal lamp can be determined corrupted information via the data bus, performed by the meter K170 fault indicator lights to alert the driver.
(6) The wiper Windscreen washer control circuit
Figure 8
75 via line fuse SC40 (10 a) → E38 → J519 of T73b / 62 intermittent wipe signal input terminals, time adjustment is a change in the variable resistor formed E38 intermittent wiper in accordance with different potentials, J519 can be identified four levels signal to control the wiper time interval (FIG. 8). G397 rain sensor equipment models, J519 automatically adjust the wiper speed according to rain signal. E38 → J519 of T73b / 27 of the wiper low-speed signal transmission terminals, the E38 → J519 T73b / 53 wiper high-speed signal transmission terminals, the J519 identified by their T73a / 69 terminal, T73a / 71 terminals of respective ones of the wiper control unit outputs J400 control command, performs a low-speed / high-speed operation of the wiper. Windscreen washer water circuit is a motor working line 75 → SC40 → E38 → E44 → V5 → Windscreen washer motor ground water, V5 work to spray the windscreen, windscreen cleaning water while signaling to J519 the T73b / 61 terminal, J519 wiper motor control wiper 3 consecutive times. T73b / 32 endPromoter is a wiper motor reset signal to ensure that the wiper blade can stop along the windshield. The wiper switch and switch off-time regulator E38 and the position of time interval measurements in the level display group 003, signals 031 Windscreen washer pump group display area 2, the measured values in the rain sensor 038 set state display area 2, rain sensor rainfall perceived display area 078 group 4, DTM terminal test functions can be two levels of low and high speed of the wiper motor.
Figure 9
(7) central locking control circuit (FIG. 9, FIG. 10)
the
10
F220 door lock motor (driver side), F221 (front passenger side), F222 (rear left) and (right rear) F223 motor integrated with the door lock linkage the door lock / unlock state of the switch. Door unlock switch is closed, it means that when the door lock switch is turned off. 4 door switch F2 (driver side), F3 (front passenger side), the F10 (left rear) and the F11 (back right) are disposed around the B-pillar, C-pillar side locking hook. Keyless relying on its own grounding switch is closed when the door is opened, the switch is open when the door is closed. J519 transmit them to the door opening / closing signal, as a condition for the door locking remote control. Central locking the driver’s door key cylinder switch F59 is provided (FIG. 11), the key through the ground sending a blocking signal when F59 / unlock command to the J519, J519 the T73b / 28 terminal receiving a key lock, T73a / 24 terminal receiving the latch when ground signal. J519 recognized when the remote control key or a locking / unlocking command, the door lock control operation of the motor. Specifically described as follows.
11
When the output lock command J519, T73a / 11 at a high potential terminal, T73a / 12 and T73a / 15 terminal is at low potential, T73a / 11 → terminal of the driver’s door and the door lock motor V56 in parallel therewith to open the fuel lidKai motor V155 → T73a / 12 circuit terminals are formed, T73a / 11 → terminal other door actuating motor other than the V56 → T73a / 15 circuit terminals are formed, locking all doors, each door locked while the motor linkage door lock / unlock state switching operation, so that the J519 T73a / 22, T73a / 21, T73a / 17 and T73a / 18 these four terminals are at a high potential, the BCM as the feedback signal input, represented by the left and right turn signal lamp flash once the doors are closed. J519 identified in the rear door safety locking state, T73a / 58 terminal of the output pulse K133 security indicator in the driver’s door, so that it at certain time intervals flashes, indicating the vehicle into the security state. In contrast unlock process. Using the driver’s door power window switch board vehicle locking / unlocking switch E150, which signal is modulated by a resistor in series to form a different potential of the input T73a / 25 terminals J519, the locking and unlocking command to indicate, after the recognition output J519 door open and close instruction execution respective motor.
After the door is unlocked, the luggage compartment can be opened by opening the switch in the driver’s door E234, the specific process, the E234 Closed J519 recognize T73a / 23 terminal is at low potential, which is T73a / 10 terminal 12 V output voltage is applied to the motor in the luggage compartment opening V53. After opening the luggage compartment, the luggage compartment is closed contact switch F111, W18 lamp lighting the luggage compartment, the luggage compartment opening on the instrument while K127 indicator lights. To save power, after 10 min J519 is T73a / 65 terminal of the power cut off W18. Once all of the door lock, J519 no longer ignore low signal T73a / 23 terminal, it can not use the E234 to open the luggage compartment, then only actuated by remote control. For safety reasons, when the vehicle speed is greater than 15 km / h, the switch signal input E234 invalid to prevent erroneous operation of the luggage compartment opening.
For measurement of the central locking control section 007 in the group (door unlock / lock state), an area group 008 (the driver’s door key cylinder unlock switch / lock state) 015 and a group 1 and ( remote unlocking / locking signal) display, door status information displayed in the measurement value group 005, the luggage compartment in contact switch status information display region 008 group 3Shows.
(Continued)
(Chenzhong Ze)