Anti-roll bar for the rolling stabilization of a vehicle and method for operating such an anti-roll bar

Patent metadata

Field	Value
Publication number	US-2017008366-A1
Application number	US-201515121163-A
Country	US
Kind code	A1
Filing date	Jan 20, 2015
Priority date	Feb 25, 2014
Publication date	Jan 12, 2017
Grant date	—

Abstract

A stabilizer ( 105 ) for the anti-roll stabilization of a vehicle ( 100 ). The stabilizer ( 105 ) has a first stabilizer element ( 110 ) and a second stabilizer element ( 115 ). The first stabilizer element ( 110 ) is, or can be, coupled to a first wheel suspension element ( 120 ) of the vehicle ( 100 ) and the second stabilizer element ( 115 ) is, or can be, coupled to a second wheel suspension element ( 125 ) of the vehicle ( 100 ). Furthermore, the stabilizer ( 105 ) is provided with an electric motor ( 135 ) designed to rotate the first stabilizer element ( 110 ), relative to the second stabilizer element ( 115 ) in response to a control signal, so as to decouple the first wheel suspension element ( 120 ) from the second wheel suspension element ( 125 ). In this case the control signal represents a signal determined on the basis of a field-orientated control system.

First claim

1 - 10 . (canceled)

11 . A stabilizer ( 105 ) for anti-roll stabilization of a vehicle ( 100 ), wherein the stabilizer ( 105 ) comprises:
a first stabilizer element ( 1101 , and a second stabilizer element ( 115 ), the first stabilizer element ( 110 ) is connectable to a first wheel suspension element ( 120 ) of the vehicle ( 100 ) and the second stabilizer element ( 115 ) is connectable to a second wheel suspension element ( 125 ) of the vehicle ( 100 ); and at least one electric motor ( 135 ), which is designed to rotate the first stabilizer element ( 110 ) relative to the second stabilizer element ( 115 ) in response to a control signal, in order to decouple the first wheel suspension element ( 120 ) from the second wheel suspension element ( 125 ), and the control signal is a signal determined by using an algorithm of a field-orientated control system.

12 . A vehicle ( 100 ) in combination with at least one stabilizer ( 105 ) for anti-roll stabilization of the vehicle ( 100 ), the stabilizer ( 105 ) comprises:
a first stabilizer element ( 110 ) and a second stabilizer element ( 115 ), the first stabilizer element ( 110 ) is connectable to a first wheel suspension element ( 120 ) of the vehicle ( 100 ) and the second stabilizer element ( 115 ) is connectable to a second wheel suspension element ( 125 ) of the vehicle ( 100 ); and at least one electric motor ( 135 ), which is designed to rotate the first stabilizer element ( 110 ) relative to the second stabilizer element ( 115 ) in response to a control signal, in order to decouple the first wheel suspension element ( 120 ) from the second wheel suspension element ( 125 ), the control signal is a signal determined by using an algorithm of a field-orientated control system

13 . A method ( 800 ) for operating a stabilizer ( 105 ) for anti-roll stabilization of a vehicle ( 100 ), the stabilizer ( 105 ) having a first stabilizer element ( 110 ) and a second stabilizer element ( 115 ), the first stabilizer element ( 110 ) being connectable to a first wheel suspension element ( 120 ) of the vehicle ( 100 ) and the second stabilizer element ( 115 ) being connectable to a second wheel suspension element ( 125 ) of the vehicle ( 100 ), and at least one electric motor ( 135 ), which is designed to rotate the first stabilizer element ( 110 ) relative to the second stabilizer element ( 115 ) in response to a control signal, in order to decouple the first wheel suspension element ( 120 ) from the second wheel suspension element ( 125 ), the control signal being a signal determined by using an algorithm of a field-orientated control system, the method ( 800 ) comprising steps of:
reading-in ( 805 ) of a reciprocating movement signal, the reciprocating movement signal representing reciprocating movement of at least one of the first wheel suspension element ( 120 ) and the second wheel suspension element ( 125 ); and providing ( 810 ) the control signal using an algorithm of a field-orientated control system and also using the reciprocating movement signal to produce rotation of the first stabilizer element ( 110 ) relative to the second stabilizer element ( 115 ) by the electric motor so as to decouple the first wheel suspension element ( 120 ) from the second wheel suspension element ( 125 ).

14 . The method ( 800 ) according to claim 13 , further comprising carrying out a dig transformation in the providing step ( 810 ) to determine the control signal.

15 . The method ( 800 ) according to claim 14 , further comprising reading in a rotor angle signal in the read-in step ( 805 ), with the rotor angle signal representing an angle of a rotor of the electric motor ( 135 ), and, in the providing step ( 810 ), carrying out the d/q transformation using the rotor angle signal.

16 . The method ( 800 ) according to claim 13 , further comprising determining the control signal in the providing step ( 810 ) using at least one of a torque, an electric flux density of the electric motor ( 135 ), and a relationship between the torque and the electric flux density.

17 . The method ( 800 ) according to claim 13 , further comprising additionally determining the control signal, in the providing step ( 810 ), on a basis of an observer system.

18 . A control unit ( 900 ) for at least one of carrying out and controlling all the steps of the method ( 800 ) according to claim 13 .

19 . A computer program for implementing all the steps of the method ( 800 ) according to claim 13 .

20 . A machine-readable storage medium with the computer program according to claim 19 stored on the machine-readable storage medium.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Füssl Andreas
• Frei Roman
• Engel Joachim
• Amann Notker
• Er Mesut
• Mair Ulrich

Classifications

• B60G2400/252

  vertical · CPC title

• B60G2204/419

  Gears · CPC title

• B60G2202/442

  Rotary actuator · CPC title

• B60G2200/34

  Stabilising mechanisms, e.g. for lateral stability · CPC title

• B60G2204/4191

  Planetary or epicyclic gears · CPC title