Method for operating a stabilizer arrangement

Patent metadata

Field	Value
Publication number	US-9333830-B2
Application number	US-201414503904-A
Country	US
Kind code	B2
Filing date	Oct 1, 2014
Priority date	Oct 2, 2013
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

A method for operating a stabilizer arrangement which has two stabilizer modules and an actuator, wherein the stabilizer modules are arranged along an axle of a motor vehicle and are acted on by the actuator, wherein at least one kinematic variable of each wheel which is oriented in the vertical direction of the axle is determined, wherein by using a value of the at least one kinematic variable a value for at least one pilot control parameter is determined by a pilot control arrangement, which value is made available to a control cascade which includes an angle control module, a rotational speed control module and a power control module, wherein a value for a power control for operating the actuator is made available by the control cascade from the value for the pilot control parameter, which is dependent on the value of the kinematic variable.

First claim

What is claimed is:

1. A method for operating at least one stabilizer arrangement which has two stabilizer modules arranged along an axle of a motor vehicle and are acted on by an actuator, the method comprising the steps of:
determining at least one kinematic variable of each wheel of the axle, which is oriented in the vertical direction of the axle, the at least one kinematic variable being based upon a vertical position of the wheel with respect to the axle,
determining a value for at least one pilot control parameter by a pilot control arrangement using a value of the at least one kinematic variable,
supplying the value to a control cascade which comprises an angle control module, a rotational speed control module and a power control module,
supplying a value for a power control for operating the actuator by the control cascade from the value for the at least one pilot control parameter, which is dependent on the value of the at least one kinematic variable; and
operating the actuator based upon the value for power control.

2. The method as claimed in claim 1 , further comprising determining a value for a setpoint angle for the actuator based upon a torque pilot control module of the pilot control arrangement from a value for a setpoint torque and values for the vertical position as the at least one kinematic variable of the wheels of the axle.

3. The method as claimed in claim 1 , further comprising determining a value for a setpoint rotational speed for the actuator based upon the angle control module from a value for a setpoint angle for the actuator and a value for an actual angle of the actuator.

4. The method as claimed in claim 1 , further comprising determining a value for a rotational speed pilot control as the at least one pilot control parameter for the actuator based upon a rotational speed pilot control module of the pilot control arrangement from values for a vertical speed as the at least one kinematic variable of the wheels, from a value for a vehicle body rolling rate and a value for a setpoint angle of the actuator.

5. The method as claimed in claim 1 , further comprising determining a value for a setpoint current for the actuator based upon the rotational speed control module from a value for a setpoint rotational speed of the actuator, a value for a rotational speed pilot control, as the at least one pilot control parameter of the actuator, and a value for an actual rotational speed for the actuator.

6. The method as claimed in claim 1 , further comprising determining a value for a power pilot control as the at least one pilot control parameter for the actuator based upon a power pilot control module of the pilot control arrangement from values for vertical acceleration as the at least one kinematic variable of the wheels, a value for vehicle body rolling acceleration, a value for a setpoint angle for the actuator and a value for a setpoint rotational speed of the actuator.

7. The method as claimed in claim 1 , further comprising determining a value for the power control for the actuator based upon the power control module from a value for a setpoint current of the actuator, a value for a power pilot control as the at least one pilot control parameter of the actuator, and a value for an actual current of the actuator.

8. The method as claimed in claim 1 , further comprising supplying a value for an actual current which is applied to a motor of the actuator based upon a value for the power control of the actuator, as a result of which a value for an actual torque for the actuator is made available for a transmission of the actuator.

9. The method as claimed in claim 1 , further comprising supplying a value for the power control for each actuator of each stabilizer arrangement, for operating the respective actuator, for a plurality of stabilizer arrangements, wherein, in each case, a stabilizer arrangement is assigned to one axle of the motor vehicle and wherein values for the power control for operating the actuators are determined comprehensively for the stabilizer arrangement.

Assignees

• Porsche Ag

Inventors

• Illg Igor
• Mirwaldt Thomas

Classifications

• B60G2400/208

  of wheel rotation · CPC title

• B60G21/0555

  including an actuator inducing vehicle roll · CPC title

• B60G17/0162

  mainly during a motion involving steering operation, e.g. cornering, overtaking (B60G17/0164 takes precedence) · CPC title

• B60G2800/9122

  ARS - Anti-Roll System Control · CPC title

• B60G21/055 Primary

  Stabiliser bars · CPC title