|
Joined: May 2005
Posts: 7,497 Likes: 109
Daily96 40.10W
|
Daily96 40.10W
Joined: May 2005
Posts: 7,497 Likes: 109 |
Hallo Wilfried,
das kann kann an xx Sachen liegen, liegt da überhaupt Unterdruck an, d.h. die Anlage ist dicht und die UPumpe läuft ?
zur Funkton: CRUISE CONTROL SYSTEM - V8i/Tdi AUTO EDC Description The cruise control system consists of electro-mechanical devices, and comprises of the following components.
ELECTRONIC CONTROL UNIT (ECU) The microprocessor based ECU evaluates the signals provided by the driver controls, brake pedal switch, clutch pedal switch on manual models, and the vehicle speed sensor. The ECU activates the vacuum pump as required. The ECU also has a memory function for set speed storage. Driver operated switches The main cruise control switch is located in the auxiliary switch panel and activates the cruise control system. The steering wheel switches provide ’set/accelerate’ and ’resume/decelerate’ features. These switches provide the interface between driver and cruise control system.
Brake pedal switch The brake pedal switch is located under the lower dash attached to the brake pedal mounting bracket. The switch provides for fast disengagement of the cruise control system and rapid return of the throttle levers to the idle position when the brake pedal is applied.
Clutch pedal switch The clutch pedal switch is located under the lower dash attached to the clutch pedal mounting bracket. The switch provides for fast disengagement of the cruise control system and rapid return of the throttle levers to the idle position when the clutch pedal is applied.
Vehicle speed sensor The vehicle speed sensor is located on the side of the transfer box adjacent to park brake. The sensor provides road speed data to the ECU. The cruise control system cannot be engaged until the road speed exceeds 45 km/h, (28 mph) the system will automatically disengage at a road speed of 42 km/h (26 mph).
Vacuum pump The vacuum pump is energised when the main cruise control switch is operated, and is actuated by the steering wheel and brake pedal switches. The pump provides a vacuum source to the cruise control actuator. A control valve in the pump provides for steady increase of road speed or purge of the system when the brake pedal is applied.
Actuator The actuator provides the servo mechanism link between the cruise control system and throttle linkage and is operated by vacuum from the vacuum pump.
Neutral lockout relay - automatic vehicles The relay module is located in the right hand side footwell, accessible by removing the trim casing. The function of the relay module is to disengage the cruise control system if neutral, or park, is selected in the main gearbox, when the system is engaged.
Engine speed trip ECU - Manual vehicles This unit is located in the right hand side footwell, accessible by removing the trim casing. The function of the unit is to disengage cruise control if engine speed exceeds 5000 rev/min.
Gruß Juergen
|
|
|
Moderated by Burgerfrau, DaPo, Dieter, Flashman, juergenr, Monny, Ozymandias, Peter, Phil, rovervirus, Tordi
Posts: 86
Joined: December 2003
|
|
1 members (nitram19),
438
guests, and
0
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Foren36
Themen44,278
Posts672,026
Mitglieder9,908
|
Most Online1,320 Jan 2nd, 2020
|
|
|
|