Delphi Technologies, Inc.

Daniel Sygnarowicz

Mariusz Geborek

Maciej Meijer

Aleksandra Urbanek

A method and system for detecting a vehicle rollover or dangerous situations that may precede a rollover, in particular a soil trip type rollover includes the following steps, where the steps are performed in loops,

Method and system for detecting a vehicle rollover, in particular a soil trip rollover

A safety logic for vehicle rollover detection systems comprising a main rollover detection logic and at least one protection device for the occupant or occupants of the vehicle, including a vehicle lateral acceleration sensor (), which generates an output signal indicating a near rollover event, when a lateral acceleration of a vehicle exceeds the first predefined threshold value () or, when a lateral acceleration of vehicle exceeds the second predefined threshold value () that is lower than the first predefined threshold value () and simultaneously at least one additional safety logic activation signal is present ().

Safety logic for vehicle rollover detection systems and a method for detecting near rollover situations

The present invention relates to a method and system for detecting a vehicle rollover or dangerous situations that may precede a rollover of a vehicle. The method comprises the steps of (a) measuring the set of input signals including at least vehicle velocity, vehicle steering angle, vehicle lateral acceleration, and vehicle roll rate; (b) integrating the vehicle roll rate to obtain the vehicle roll angle increment; (c) determining the vehicle state on the basis of the input signals; (d) determining the vehicle estimated lateral acceleration, corresponding to the vehicle true roll angle, on the basis of at least the vehicle state, vehicle lateral acceleration and the centrifugal acceleration; (e) determining the vehicle estimated roll angle on the basis of at least the vehicle roll angle increment, the vehicle estimated lateral acceleration and the vehicle state; and (f) generating an output activation signal determining a possibility of rollover of the vehicle, as a function of at least: vehicle estimated roll angle and the vehicle roll rate.

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Wojnicz, Poland

Daniel Sygnarowicz