INTEGRATED VEHICLE CONTROL SYSTEM USING DYNAMICALLY DETERMINED VEHICLE CONDITIONS
First Claim
Patent Images
1. A method of controlling a vehicle system vehicle comprising:
- determining a longitudinal acceleration;
determining a longitudinal moment due to longitudinal tire forces in response to the longitudinal acceleration;
determining a first coefficient related to vehicle mass and spring pitch rate;
determining a second coefficient related to vehicle spring rate and pitch inertia;
determining a normalized vertical suspension force induced pitch moment using the first coefficient, the second coefficient and the longitudinal moment;
determining a relative pitch angle in response to the normalized vertical suspension force induced pitch moment; and
controlling the system in response to the relative pitch angle.
0 Assignments
0 Petitions
Accused Products
Abstract
A vehicle includes a control system that is used to control a vehicle system. The control system determines a roll condition in response to a yaw rate sensor and a pitch rate sensor without having to use a roll rate sensor. A relative roll angle, relative pitch angle, global roll angle, and global pitch angle may also be determined. A safety system may be controlled in response to the roll condition, roll angle, or the pitch angles individually or in combination.
-
Citations
27 Claims
-
1. A method of controlling a vehicle system vehicle comprising:
-
determining a longitudinal acceleration; determining a longitudinal moment due to longitudinal tire forces in response to the longitudinal acceleration; determining a first coefficient related to vehicle mass and spring pitch rate; determining a second coefficient related to vehicle spring rate and pitch inertia; determining a normalized vertical suspension force induced pitch moment using the first coefficient, the second coefficient and the longitudinal moment; determining a relative pitch angle in response to the normalized vertical suspension force induced pitch moment; and controlling the system in response to the relative pitch angle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
Specification