U.S. patents available from 1976 to present.
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Method of controlling a vehicle active tilt control system

Patent 6076027 Issued on June 13, 2000. Estimated Expiration Date: Icon_subject February 3, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Vehicle suspension apparatus
Patent #: 4629212
Issued on: 12/16/1986
Inventor: Takizawa ,   et al.

Actively controlled automotive suspension system with improved cornering characteristics
Patent #: 4903983
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Inventor: Fukushima, et al.

Control apparatus for a vehicular suspension system
Patent #: 4930082
Issued on: 05/29/1990
Inventor: Harara, et al.

Method of controlling active suspensions for an automotive vehicle
Patent #: 5029328
Issued on: 07/02/1991
Inventor: Kamimura, et al.

On/off semi-active suspension control
Patent #: 5062657
Issued on: 11/05/1991
Inventor: Majeed

Anti-rolling control for actively controlled automobile suspension system with enhanced rolling detecting ability
Patent #: 5087068
Issued on: 02/11/1992
Inventor: Fukanaga, et al.

System for controlling active suspensions of a vehicle
Patent #: 5103396
Issued on: 04/07/1992
Inventor: Hiwatashi, et al.

Banded on-off control method for semi-active dampers
Patent #: 5390121
Issued on: 02/14/1995
Inventor: Wolfe

Vehicular suspension system utilizing variable damping force shock absorber Patent #: 5467280
Issued on: 11/14/1995
Inventor: Kimura

Inventors

Application

No. 018159 filed on 02/03/1998

US Classes:

701/38, Attitude change suppressive control (e.g., antiroll or antipitch)280/5.502, Of lateral vehicle attitude (e.g., antiroll, antisway)280/5.504, Including condition or parameter adjustment occurring at longitudinally spaced vehicle axles280/5.507, Lateral and longitudinal vehicle attitude control (e.g., combinations of antidive, antipitch, antiroll, antisquat, antisway, antiyaw, riding, or suspension height)280/6.16, Lateral vehicle attitude701/1, VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION701/70, Indication or control of braking, acceleration, or deceleration701/71Antiskid, antilock, or brake slip control

Examiners

Primary: Cuchlinski, William A. Jr.
Assistant: Beaulieu, Yonel

Attorney, Agent or Firm

International Classes

G06F 017/00
B60G 017/00

Abstract

A method of controlling a vehicle active tilt control system is provided for increasing the operating efficiency and improving operator/passenger comfort associated with the operation of a motor vehicle having an active tilt control system. The tilt control system includes a stabilizer bar adjustable by a hydraulic actuator which is movable in first and second opposing directions for adjusting vehicle body roll resistance provided by the stabilizer bar, and having a pressure control valve for controlling hydraulic pressure to the actuators. The method includes the following steps: a) obtaining a lateral acceleration magnitude signal; b) comparing the lateral acceleration magnitude signal to a first lateral acceleration threshold; c) enabling the active tilt control system for the vehicle when the lateral acceleration magnitude signal exceeds the first lateral acceleration threshold; d) disabling the active tilt control system for the vehicle when the lateral acceleration magnitude signal is less than the first lateral acceleration threshold; e) comparing the lateral acceleration magnitude signal to a third lateral acceleration threshold; and f) resetting the active tilt control system for the vehicle when the lateral acceleration magnitude signal is less than the third lateral acceleration threshold continuously for at least a predetermined period of time.

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