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US 11,592,459 B2Granted
Collision determination device
AssigneeDenso Corporation
InventorYuki Iguchi
Life of this patent
Estimating the term…
Abstract
In a collision determination device for determining a type of front collision of a vehicle, a collision determination unit is configured to determine that the collision type is full overlap front collision as collision of the vehicle with an obstacle across substantially the entire width of a front surface of a vehicle body in a case where initial values as values at an early phase of the collision for a first lateral acceleration and a second lateral acceleration are both less than a full overlap determination threshold as a negative value.
Claims13
A collision determination device for determining a type of front collision of a vehicle, comprising:
- a non-transitory memory storing one or more computer programs;
- and
- a processor executing the one or more programs to:
- acquire, based on output of a first acceleration sensor arranged at a front portion of the vehicle on one side in a vehicle width direction with respect to a vehicle center line, a first longitudinal deceleration as a deceleration in a vehicle length direction parallel with the vehicle center line and a first lateral acceleration as an acceleration in the vehicle width direction, the first lateral acceleration taking an acceleration in an inward direction toward the vehicle center line as a positive value and taking an acceleration in an outward direction opposite to the inward direction as a negative value, the first acceleration sensor being fixed to one of a pair of side members or to a member of the vehicle to which impact of the collision is to be transferred from the one of the pair of side members, the pair of side members extending symmetrically across the vehicle center line from a reinforcement member arranged inside a front bumper of the vehicle and curved forward in a raised shape when viewed in plan view;
- acquire, based on output of a second acceleration sensor arranged at the front portion of the vehicle on the other side in the vehicle width direction with respect to the vehicle center line, a second longitudinal deceleration as a deceleration in the vehicle length direction and a second lateral acceleration as an acceleration in the vehicle width direction, the second lateral acceleration taking an acceleration in the inward direction as a positive value and taking an acceleration in the outward direction as a negative value, the second acceleration sensor being fixed to an other of the pair of side members or to a member of the vehicle to which impact of the collision is to be transferred from the other of the pair of side members;
- determine a collision type based on the first longitudinal deceleration and the first lateral acceleration acquired and the second longitudinal deceleration and the second lateral acceleration acquired;
- and
- operate a protection device according to the determined collision type,
- wherein the processor determines that the collision type is a full overlap front collision as a collision of the vehicle with an obstacle across substantially an entire width of a front surface of a vehicle body in a case where initial values as values at an early phase of the collision for the first lateral acceleration and the second lateral acceleration are both less than a full overlap determination threshold as a negative value.
6 more elements
A collision determination device for determining a type of front collision of a vehicle, comprising:
- a non-transitory memory storing one or more computer programs;
- and
- a processor executing the one or more programs to:
- acquire, based on output of a first acceleration sensor arranged at a front portion of the vehicle on one side in a vehicle width direction with respect to a vehicle center line, a first longitudinal deceleration as a deceleration in a vehicle length direction parallel with the vehicle center line and a first lateral acceleration as an acceleration in the vehicle width direction, the first lateral acceleration taking an acceleration in an inward direction toward the vehicle center line as a positive value and taking an acceleration in an outward direction opposite to the inward direction as a negative value, the first acceleration sensor being fixed to one of a pair of side members or to a member of the vehicle to which impact of the collision is to be transferred from the one of the pair of side members, the pair of side members extending symmetrically across the vehicle center line from a reinforcement member arranged inside a front bumper of the vehicle and curved forward in a raised shape when viewed in plan view;
- acquire, based on output of a second acceleration sensor arranged at the front portion of the vehicle on the other side in the vehicle width direction with respect to the vehicle center line, a second longitudinal deceleration as a deceleration in the vehicle length direction and a second lateral acceleration as an acceleration in the vehicle width direction, the second lateral acceleration taking an acceleration in the inward direction as a positive value and taking an acceleration in the outward direction as a negative value, the second acceleration sensor being fixed to an other of the pair of side members or to a member of the vehicle to which impact of the collision is to be transferred from the other of the pair of side members;
- determine a collision type based on the first longitudinal deceleration and the first lateral acceleration acquired and the second longitudinal deceleration and the second lateral acceleration acquired;
- and
- operate a protection device according to the determined collision type,
- wherein the processor determines that the collision type is full overlap front collision as collision of the vehicle with an obstacle across substantially an entire width of a front surface of a vehicle body in a case where initial values as values at an early phase of the collision for the first lateral acceleration and the second lateral acceleration are both less than a low overlap determination threshold as a positive value and an initial value of the first longitudinal deceleration and an initial value of the second longitudinal deceleration are both equal to or greater than an offset determination threshold as a positive value.
6 more elements
Dependencies are inferred from the claim text.