×

Actively controlled automotive suspension system with adjustable rolling-stability and/or pitching-stability

  • US 5,144,558 A
  • Filed: 02/21/1991
  • Issued: 09/01/1992
  • Est. Priority Date: 06/13/1986
  • Status: Expired due to Fees
First Claim
Patent Images

1. An actively controlled suspension system for an automotive vehicle comprising:

  • first pressure means disposed between a first lateral side of a vehicle body and a first suspension member supporting first front and rear road wheels, said first pressure means including a variable pressure chamber varying pressure of a working fluid therein for adjusting relative displacement between the vehicle body and the first suspension member;

    second pressure means disposed between a second lateral side of the vehicle body opposite the first lateral side and a second suspension member supporting second front and rear wheels, said second pressure means including a variable pressure chamber varying pressure of a working fluid therein for adjusting relative displacement between the vehicle body and the second suspension member;

    lateral acceleration determining means including a vehicle speed sensor which monitors vehicle speed V to provide a signal indicative thereof and a steering angle sensor which monitors a steered angle of a steering wheel to determine an actual steered angel δ

    of the road wheels and provides a signal indicative thereof, said lateral acceleration determining means projecting a lateral acceleration G, which causes rolling motion of the vehicle body, according to the following relation and providing a lateral acceleration indicative signal, ##EQU2## wherein, V is vehicle speed,l is wheel base length,k s is a stability factor,S is a Laplace operator,

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×