System and method for pre-deploying restraints countermeasures using pre-crash sensing and post-crash sensing
First Claim
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1. A device comprising:
- a controller positioned within a vehicle and being configured to;
determine a closing velocity between the vehicle and an object in a pre-collision state;
determine a predicted collision time based on the closing velocity;
deploy a restraint system including at least one airbag at a predetermined deployment time prior to the predicted collision time in response to pre-crash signals;
monitor for a brake status signal indicative of brakes being applied to the vehicle;
recalculate the closing velocity to produce a first predicted collision time if the brake status signal is detected prior to deploying the restraint system; and
deploy the restraint system at the predetermined deployment time prior to the first predicted collision time in response to the pre-crash signals.
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Abstract
A system and method for deploying a restraint system in a vehicle that is in a pre-collision state with an object is provided. The system includes a pre-crash sensing system and a controller. The pre-crash sensing system is adapted to transmit pre-crash signals. The controller is configured to determine a closing velocity between the vehicle and the object. The controller is further configured to determine a predicted collision time based on the closing velocity and deploy the restraint system at a predetermined deployment time prior to the predicted collision time in response to the pre-crash signals.
53 Citations
17 Claims
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1. A device comprising:
a controller positioned within a vehicle and being configured to; determine a closing velocity between the vehicle and an object in a pre-collision state; determine a predicted collision time based on the closing velocity; deploy a restraint system including at least one airbag at a predetermined deployment time prior to the predicted collision time in response to pre-crash signals; monitor for a brake status signal indicative of brakes being applied to the vehicle; recalculate the closing velocity to produce a first predicted collision time if the brake status signal is detected prior to deploying the restraint system; and deploy the restraint system at the predetermined deployment time prior to the first predicted collision time in response to the pre-crash signals. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for deploying a restraint system in a vehicle that is in a pre-collision state with an object, the system comprising:
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a pre-crash sensing system adapted to transmit pre-crash signals; a brake sensing system adapted to transmit a brake status signal that corresponds to brakes being applied to the vehicle; and a controller configured to determine a closing velocity between the vehicle and the object in the pre-collision state based on the pre-crash signals, determine a predicted collision time based on the pre-crash signals and the closing velocity, deploy the restraint system at a predetermined deployment time prior to the predicted collision time, recalculate the closing velocity to generate a first predicted collision time based on the brake status signal, and deploy the restraint system at the predetermined deployment time prior to the first predicted collision time in response to the pre-crash signals. - View Dependent Claims (9, 10, 11)
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12. A system for deploying a restraint system in a vehicle that is in a pre-collision state with an object, the system comprising:
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a pre-crash sensing system being configured to transmit at least one pre-crash signal; a brake sensing system being configured to transmit a brake status signal indicative of brakes being applied; and a controller being configured to; determine a closing velocity between the vehicle and an object in a pre-collision state; determine a predicted collision time based on the closing velocity; compare the predicted collision time to a predetermined deployment time (PDT), the PDT being indicative of an amount of time needed for controlling an inflation of at least one airbag within the restraint system; monitor for the reception of the brake status signal if the predicted collision time is greater than the predetermined deployment time; and recalculate the closing velocity to produce a first predicted collision time if the brake status signal is detected. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification