The new Volkswagen POLO car shortly before officially put into operation in Shanghai Volkswagen, the car is stylish and dynamic, outstanding handling performance, equipped with improved 1.4 L , 1.6 L of the engine, 5-speed manual matching or 09G 6-speed manual transmission type. To facilitate the readers understanding of the car, this car is a brief introduction to the engine, chassis and vehicle electrical system technology highlights.
First, the engine
1. Crankcase ventilation gas heating means
on a new engine POLO mounted, using a crankcase ventilation gas heating apparatus (Fig. 1) crankcase ventilation valve (FIG. 2) is connected with the timing cover crankshaft tank vent connected to the engine intake manifold (FIG. 3) completely changed the structure of the valve is mounted above the intake manifold, the intake manifold is formed into a ring, such a structure contributes to the formation of the intake swirl. [123 ]
FIG. 1 crankcase ventilation heating means
FIG crankcase ventilation valve
A crankcase ventilation valve connected to one end of the heat exchanger housing rear access throttle valve, heat exchange housing and the heat exchange pipe is connected to the crankcase ventilation gas is heated.
[ 123] FIG engine intake manifold 3
Second, the chassis system
1. Front axle
POLO new car front wheel
camber can be adjusted. Wheel Adjustment range receiving the sub-beam camber bore tolerance limit, if the moving member can not be achieved by the amount of
predetermined value, the vehicle body must be checked. When the inclination adjustment outside front wheel needs to release the fixed beam and the sub-body 1-4 bolts (FIG. 4).
connected between the bolt and the body FIG beams 4
moving the sub-beams reaches the rated value can be adjusted by the camber. According to a predetermined tightening torque with a new sub-beams bolted to the vehicle body. After moving the sub beam / steering, the steering column must check the clearance between the cross joint and the engine compartment diaphragm. 2 between the cross joint and a cross-engine bulkhead (FIG. 5) should be at least
5 mm
clearance.
Figure 5 note adjusting 40th byte
2. The electric power steering system
New POLO using electric power steering system, and a warning light on the dashboard.
(1) structures
POLO new electric steering system adopted by a height-adjustable steering column, a steering torque sensor G269, worm gear, turn
to the power motor V187, electronic steering assist control unit J500 and cardan shafts (Fig. 6)
The electric power steering system of FIG. 6
[123 ] ① worm mechanism (FIG. 7)
worm wheel is made of an aluminum material, wrapped in a layer of the plastic housing, thereby reducing noise generated in its operation.
FIG. 7 worm machine
② steering torque sensors
G269 (FIG. 8) electric power steering Hall provided with a steering torque sensor G269. When the driver turns the steering wheel, the inner shaft with a magnetic rotation of the inner shaft and the outer ring so that relative displacement, thereby producing a signal voltage at the outer coil. The voltage value of the electric signal back to the steering control unit J500, as the control voltage signal unitCalculated on the basis of the value of the torque assist. If G269 is damaged, the loss of steering.
FIG. 8 a steering torque sensor
③ turn warning lamp K161
is provided on the motor
dashboard steering system failure warning light, when the electric power steering system control unit to the monitoring system component fails, the steering warning light on the dashboard will command, prompts the driver’s steering system failure.
④ electric power steering system control unit
The electric power steering control unit is provided with a plurality of connector (FIG. 9), blue pin connector of the control unit 2 a rotor position sensor connector supply terminal and a ground line, green 3 pin connector as the level of a controller Area Network bit data line and an ignition switch control line 15, the 6-pin connector is purple motor, red needles 5 a steering torque sensor connector of the connector, 3-pin connector for the connector yellow motor. When the electric power steering control unit J500 damaged dashboard warning light is lit, the system will also lose steering function.
FIG. a plurality of connectors 9
3. Brake system
New POLO 8.2 car equipped with a Bosch anti-lock brake system version, not equipped with an electronic stability program (ESP) control system.
The anti-lock braking system of the vehicle equipment (FIG. 10) includes a ABS control unit J104, the valve body (including the intake and exhaust valves), the indicator K4, the braking system indicator light K118, Ltd. F movable light switch and four wheel speed sensors.
FIG antilock brake system 10
2) antilock lock braking system hydraulic unit N55
3) anti-lock braking system indicator K4
4) braking system indicator K118.
5) Diagnostic Interface
6) Stop lamp switch F ( front wheel includes a brake pedal switch F47)
7) front right / left front wheel speed sensor G45 / G47.
8) with the wheel bearing (ABS sensor mounted on a wheel bearing ring the rear wheel hub) after
9) a right / left wheel speed sensor G44 / G46.
10) with the wheel bearing (anti-lock braking system sensor ring mounted on a wheel bearing)
Third, the vehicle electrical system
1. Amenity system
POLO comfort in the new system, independent canceled comfort system control unit, but is controlled by the vehicle control unit.
(1) door control unit
four door control unit becomes a two door control unit, i.e. the driver’s door control unit (11) and a front passenger door control unit, two back door is no longer provided a glass door control unit is provided only lifter motor (FIG. 12), simple structure and easy maintenance.
Figure 11 driving members door control unit
Figure 12 a left rear door window regulator motor
(2) lock system
[123 ] ① unlock
the car is provided with a remote controller, remote control locking and unlocking, when the unlocking operation is performed, all the doors are unlocked and the tank flap, turn signals
blinks twice.
② latch
When performing the locking operation, and fuel tank lid locking doors, turn lamp blinks once, if the door does not blink not turn about Hershey.
at a standard vehicle tailgate lock release switch and a contact switch disposed on the tailgate (FIG. 13) of the contactA single switch contact switch, the contact switch is closed tailgate unlock the lock.
13
2. Seat heating means
POLO new car with front row seat heating means, which controls
unit (14) located on the instrument panel the bottom right of the instrument cluster. Light-based System
FIG seat heating control means 14 [ 123]
3.
in the light of new POLO
cars are used in
system, steering
lamps, brake lamps and inverted [ 123] lamp (automatic car type) controlled by the body control unit, but failure warning is provided [on the dashboard 123] [123 ]light. Near / Far light, small lights and fog lights from the vehicle body control unit (FIG. 15). FIG 15 near / far light, small lights and fog control circuit diagram
[ 123]
(1) headlamp
power headlamp shown in FIG. 16,
near / high beam bulb power 55/60 W, turn signal lamp is 21 W, a small light bulb power is 5 W.
headlamp height adjustable, but equipped with automatic height adjustment device, instead of using hand
movable height adjustment, divided into three gears.
FIG headlamp 16
FIG combined taillight 17
(2) taillight
[123 ]
a modular vehicle taillight
(FIG. 17), in which a small light bulb power
was 5 W, the brake lights, turn signals
and rear fog lamps are power 21 W.
(3) the front fog lamp is a front fog lamp power 35 W. POLO new car with the bend lighting function, the function realized by the first
fog. Front fog can in turn, to better illuminate the parked car around a ring environment.
The activation of cornering lights that the vehicle is stationary engine operation in a car or is less than 40 km / h of the travel speed, the low-beam lamp is turned on, and is not open front fog into the reverse gear is not linked to and the steering lamp is turned on.
(4) turn signal New POLO car vehicle turn signal includes Priority function, which controls
The schematic circuit FIG 18.
Figure 18 Schematic turn signal control circuit (5) a stop lamp
POLO new car
the stop lamp switch is mounted on the system
the master cylinder, the brake lamp control
the circuit diagram shown in Figure 19 [123 123] FIG] [.
. Instrument cluster Figure 19 Schematic brake light control circuit 4
New POLO car uses a novel combination instrument (FIG. 20), wherein the fuel
Electronic table formula; cancel the coolant temperature gauge, a level / high temperature alarm lamp and
buzzer alarm substituted; cancel the security indicator.
The new combination meter uses a single row connector.
. Body Control Unit
20 novel combination meter FIG.
5. body control unit
body new POLO employed in the control unit (FIG. 21) in addition includes a comfort system control unit J393 outer , also integrates the onboard power supply control unit
J519 and J533 data bus diagnostic interface (gateway) function.
The main function of the BCM include load management, brake lights, reversing light (Auto
model block), the interior light control, steering control and alarm lamp flash, the first
wiper control, a control signal horn, rear windscreen heating control means,
front door control unit, and a trunk lid unlocking bus network management.
FIG. 21 Multifunctional vehicle body control unit 6. Data bus system
POLO new car data bus topology shown in Figure 22.
. Audio
FIG 22 network topology map
7
Audio new POLO cars use without a diagnosis line ,Do notFault diagnosis by
off its diagnostic instrument. To whom diagnosis, and the need to press a
6 key, failure to read the prompts displayed on the display screen.
8. Wiper
wiper has a maintenance position, the need to turn the ignition switch is operated, and then off, and within 10 s of the wiper switch to move the stopper position, the wiper arm it is in the service position.
9. After the parking assist system
POLO new parking system employed car (FIG. 23) no diagnostic line, can not be performed by diagnostic fault diagnosis, it is diagnosed through the sound barrier. 0.2 s utterance 1 (1 600 Hz spacing 0.3 s) showed that the left external sensor failure, 0.2 s utterance 2 (1 600 Hz spacing 0.3 s) indicating that the internal left side
[123 ] sensor failure, 0.2 s utterance 3 (1 600 Hz spacing 0.3 s) showed the right
external sensor failure, 0.2 s utterance 4 (1 600 Hz spacing 0.3 s) showed that
the right internal sensor failure, 0.2 s utterance 5 (1 600 Hz spacing 0.3 s)
showed that the control unit fails. (He Jiulun)