Vehicle roll control
First Claim
1. An apparatus for detecting traversal of a side slope by a vehicle as the vehicle travels at a vehicle speed and experiences a lateral acceleration, the apparatus including an accelerometer arranged to produce an acceleration signal indicative of the lateral acceleration, speed measuring means arranged to produce a speed dependent signal dependent on the vehicle speed, comparator means arranged to compare the speed dependent signal and the acceleration signal and to produce a difference signal indicative of the difference therebetween, and integrating means arranged to integrate the difference signal over time and to produce a side slope detection signal if the integral reaches a predetermined value.
3 Assignments
0 Petitions
Accused Products
Abstract
An active vehicle roll control system is disclosed in which a roll bar (22) has two halves (22a, 22b) which can be locked together to allow the system to operate passively. A sensing system based on a lateral accelerometer and vehicle speed sensor is arranged to detect when the vehicle is on a side slope and to put the roll control system into the passive mode.
64 Citations
16 Claims
- 1. An apparatus for detecting traversal of a side slope by a vehicle as the vehicle travels at a vehicle speed and experiences a lateral acceleration, the apparatus including an accelerometer arranged to produce an acceleration signal indicative of the lateral acceleration, speed measuring means arranged to produce a speed dependent signal dependent on the vehicle speed, comparator means arranged to compare the speed dependent signal and the acceleration signal and to produce a difference signal indicative of the difference therebetween, and integrating means arranged to integrate the difference signal over time and to produce a side slope detection signal if the integral reaches a predetermined value.
- 9. The apparatus for detecting traversal of a side slope by a vehicle as the vehicle travels at a vehicle speed and experiences a lateral acceleration, the apparatus including an accelerometer arranged to produce an acceleration signal indicative of the lateral acceleration, a speed sensor arranged to produce a speed dependent signal dependent on the vehicle speed, a comparator arranged to compare the speed dependent signal and the acceleration signal and to produce a difference signal indicative of the difference therebetween, and an integrator arranged to produce an integral over time of the difference signal and to produce a side slope detection signal if the integral reaches a predetermined value.
Specification