Control device, and method for controlling protective device
AssigneeArriver Software AB
InventorYoriko Nakamura
Life of this patent
Estimating the term…
Abstract
Techniques for controlling a protection apparatus are provided. An example method includes detecting an offset collision or diagonal collision, and activating a suitable protection apparatus for protecting the side or head of a passenger at a timing in accordance with the degree of collision. An example controller may include a level calculation part for calculating a level of a front face collision, a ΔVoffset calculation part for making an offset adjustment of a speed (ΔV), and a determination part for determining an offset collision or diagonal collision based on the level of the front face collision and the ΔVoffset.
Claims7
A control apparatus of a passenger protection apparatus, comprising:
- a first acceleration detection part for location at a front of a vehicle to detect a first acceleration in a longitudinal direction of the vehicle;
- a second acceleration detection part for location at a center of the vehicle to detect a second acceleration in the longitudinal direction of the vehicle and a third acceleration in a width direction of the vehicle;
- and
- a control part for determining a front face collision based on the first and second accelerations detected by the first acceleration detection part and the second acceleration detection part, respectively to activate the passenger protection apparatus,
- wherein the control part comprises:
- a speed calculation part for integrating the first and second accelerations to obtain a speed (ΔV);
- a level calculation part for calculating a level of a front face collision based on the first acceleration and the second acceleration;
- a ΔVoffset calculation part for making an offset adjustment of ΔV obtained by integrating the third acceleration so as to attenuate ΔV of the third acceleration based on a head-on collision, in order to obtain ΔVoffset;
- and
- a first determination part for determining a presence of an offset collision or diagonal collision based on the level of the front face collision and the ΔVoffset;
- wherein the control part activates the passenger protection apparatus for protecting a side and head of a passenger including a side airbag and a curtain airbag, if it is determined using the first determination part that an offset collision or diagonal collision has occurred.
A method for controlling a protection apparatus, comprising:
- determining a level of a front face collision based on a first acceleration in a longitudinal direction of a vehicle detected by a first acceleration detection part disposed at the front of the vehicle, and a second acceleration in the longitudinal direction detected by a second acceleration detection part disposed at a center of the vehicle;
- making an offset adjustment to a speed (ΔV) obtained by integrating a third acceleration in the width direction of the vehicle detected by the second acceleration detection part so as to attenuate ΔV of the third acceleration based on a head-on collision, in order to obtain ΔVoffset;
- determining a presence of an offset collision or diagonal collision based on the level of the front face collision, and the ΔVoffset;
- and
- activating the passenger protection apparatus for protecting the side and head of a passenger including a side airbag and a curtain airbag, if it is determined that an offset collision or diagonal collision has occurred.
Dependencies are inferred from the claim text.