INTEGRATED SENSING SYSTEM

• US 20070288152A1
• Filed: 06/29/2007
• Published: 12/13/2007
• Est. Priority Date: 02/26/2003
• Status: Active Grant

• Current Assignee: Jianbo Lu, Joseph Meyers, Todd Brown, Xu Li
• Original Assignee: Jianbo Lu, Joseph Meyers, Todd Brown, Xu Li
• Inventors: Lu, Jianbo, Xu, Li, Brown, Todd, Meyers, Joseph
• Granted Patent: US 7,630,805 B2
• Time in Patent Office: Days
• US Class Current: 701/70
• CPC Class Codes: B60G 17/018 characterised by the use of a specific signal treatment or control method
• CPC Class Codes: B60G 17/0185 for failure detection
• CPC Class Codes: B60G 17/019 characterised by the type of sensor or the arrangement thereof B60G17/01941 takes precedence
• CPC Class Codes: B60G 17/0195 characterised by the regulation being combined with other vehicle control systems conjoint control of vehicle sub-units including control of suspension systems B60W10/22
• CPC Class Codes: B60G 2400/0521 Roll rate
• CPC Class Codes: B60G 2400/0522 Pitch rate
• CPC Class Codes: B60G 2400/0523 Yaw rate
• CPC Class Codes: B60G 2400/102 vertical
• CPC Class Codes: B60G 2400/104 lateral or transversal with regard to vehicle
• CPC Class Codes: B60G 2400/106 longitudinal with regard to vehicle, e.g. braking
• CPC Class Codes: B60G 2600/08 Failure or malfunction detecting means
• CPC Class Codes: B60G 2800/70 Estimating or calculating vehicle parameters or state variables

Abstract

A vehicle control system includes a housed sensor cluster generating a plurality of signals. An integrated controller includes a sensor signal compensation unit and a kinematics unit, wherein the sensor signal compensation unit receives at least one of the plurality of signals and compensates for an offset within the signal and generates a compensated signal as a function thereof. The integrated controller further generates a kinematics signal including a sensor frame with respect to an intermediate axis system as a function of the compensated signal and generates a vehicle frame signal as a function of the kinematics signal. A dynamic system controller receives the vehicle frame signal and generates a dynamic control signal in response thereto. A safety device controller receives the dynamic control signal and further generates a safety device signal in response thereto.

Claims

1. A method for controlling a safety device for a vehicle comprising:

transforming vehicle dynamic variables from a sensor frame to a body frame as a function of vehicle dynamic sensor misalignments;

generating a roll attitude angle of said body frame with respect to an intermediate axis system;

generating a pitch attitude angle of said body frame with respect to said intermediate axis system;

generating an x velocity component of said body frame with respect to said intermediate axis system;

generating a y velocity component of said body frame with respect to said intermediate axis system; and

generating a z velocity component of said body frame with respect to said intermediate axis system.

2. The method as in claim 1 further comprising generating wheel speed alignment (wsa), road constraint alignment (rca), level ground attitude alignment (lgaa), or virtual heading angle alignment (vhaa) alignment conditions;

and

removing low frequency drift from within at least one vehicle sensor signal.