MOTOR VEHICLE WITH A RIDE LEVEL CONTROL DEVICE

• US 20110060502A1
• Filed: 09/10/2010
• Published: 03/10/2011
• Est. Priority Date: 09/10/2009
• Status: Abandoned Application

• Current Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Original Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Inventors: Hieber, Thomas, Atz, Markus, Schulz, Achim, Poppe, Frank
• Application Number:
  US12/879,168
• Publication Number:
  US 20110060502A1
• Time in Patent Office: Days
• US Class Current: 701/37
• CPC Class Codes: B60G 17/0155 pneumatic unit
• CPC Class Codes: B60G 17/0165 to an external condition, e.g. rough road surface, side wind
• CPC Class Codes: B60G 17/018 characterised by the use of a specific signal treatment or control method
• CPC Class Codes: B60G 17/0195 characterised by the regulation being combined with other vehicle control systems conjoint control of vehicle sub-units including control of suspension systems B60W10/22
• CPC Class Codes: B60G 2202/412 Pneumatic actuator
• CPC Class Codes: B60G 2400/204 Vehicle speed
• CPC Class Codes: B60G 2400/252 vertical
• CPC Class Codes: B60G 2400/382 Ignition switch
• CPC Class Codes: B60G 2400/51222 Pneumatic
• CPC Class Codes: B60G 2400/71 of suspension unit
• CPC Class Codes: B60G 2400/823 Obstacle sensing
• CPC Class Codes: B60G 2500/02 Supply or exhaust flow rates; Pump operation
• CPC Class Codes: B60G 2500/30 Height or ground clearance
• CPC Class Codes: B60G 2600/044 Alarm means
• CPC Class Codes: B60G 2600/08 Failure or malfunction detecting means
• CPC Class Codes: B60G 2600/18 Automatic control means
• CPC Class Codes: B60G 2600/20 Manual control or setting means
• CPC Class Codes: B60G 2800/914 Height Control System

Abstract

A motor vehicle is proposed having a ride level control device with a pneumatic lift system , with a ride level control unit, to which the operating parameters of the motor vehicle which are detected by sensors are fed. The ride level control unit is active if the ignition of the motor vehicle is switched on. Furthermore, when various conditions are met, the ride level control unit outputs a signal to the lift system so that the motor vehicle is raised. A bidirectional connection is present between the ride level control unit and the lift system in order to transmit feedback from the lift system to the ride level control unit.

Claims

1. A motor vehicle, comprising:

an ignition;

sensors; and

a ride level control device having a pneumatic lift system and a ride level control unit to which operating parameters of the motor vehicle detected by said sensors are fed, said ride level control unit being active if said ignition of the motor vehicle is switched on, wherein when various conditions are met, said ride level control unit outputs a signal to said lift system and lifting of the motor vehicle takes place, wherein a bidirectional connection between said ride level control unit and said lift system is present and feedback from said lift system to said ride level control unit takes place.

2. The motor vehicle according to claim 1, wherein a pressure in said pneumatic lift system is measured, and in that the lifting up of the motor vehicle is prevented if the pressure in said pneumatic lift system is not sufficient or if a speed of the motor vehicle exceeds a predefinable limiting value.

3. The motor vehicle according to claim 2, wherein the predefinable speed is 60 km/h.

4. The motor vehicle according to claim 2, further comprising a compressor, when the pressure in said lift system drops below a lower predefinable value, said compressor is activated, and is switched off again when an upper predefinable pressure is reached.

5. The motor vehicle according to claim 4, wherein when said compressor is activated after a defined time, the pressure is checked again, and a fault message is issued when the pressure is not reached.

6. The motor vehicle according to claim 1, further comprising:

a headlight; and

a beam width adjuster connected to ride level control unit, said beam width adjuster causes said headlight to be lowered when the motor vehicle is raised.