Trw Limited

Zf Active Safety and Electronics US LLC

Huahn Fern Yeh

Chek-Peng Foo

Paul Leo Sumner

Chek Peng Foo

Roger A McCurdy

Charles Anthony Bartlett

Raymond J David

Timothy Chester Wright

Anne Marie Shields

Kyeora Lee

Kim Kyoungwang

Masashi Nagai

Yuxiao Wu

Tien Hsiung Lee

Sonia Gupta

Scott Andrew Martin

Shiyi Jia

A method for controlling an actuatable restraining device includes sensing a plurality of crash event indications in response to a crash event. The method also includes classifying the crash event in response to comparing the sensed crash event indications against one another to identify an oblique moving deformable barrier crash event. The method further includes controlling deployment timing of the actuatable restraining device in response to the classification of the crash event.

Enhanced discrimination method and apparatus for controlling an actuatable restraining device

An apparatus and method for controlling an actuatable occupant restraint device having a plurality of actuatable stages ( ), the apparatus including a crash sensor ( ) for sensing crash acceleration and providing a crash acceleration signal indicative thereof. A controller ( ) determines a velocity value ( ) and a displacement value ( ) from the crash acceleration signal. A safing function controls enabling and disabling of a deployment control circuit in response to the determined velocity ( ) and displacement ( ) values. A displacement based velocity threshold ( ) and a displacement threshold value ( ) define an immunity box. The velocity threshold value ( ) varies as a step function of displacement. If the velocity/displacement values are within the immunity box, the safing function is in a disabling condition. If either value is outside of the immunity box, the safing function is in an enabling condition. A side impact sensor ( ) and side impact crash event circuit ( ) determine if a side impact crash event is occurring. If a side impact crash event is occurring, the threshold values ( ) of the immunity box are adjusted.

Method and apparatus for controlling an actuatable restraint device using a velocity/displacement based safing function with immunity box

A system ( ) for controlling an actuatable occupant protection device ( ) includes an actuatable headrest device ( ) which, when actuated, helps protect an occupant of a vehicle seat ( ). A crash sensor ( ) is operative to sense a condition of a vehicle ( ) and provide a crash sensor signal having an electrical characteristic indicative of the sensed vehicle condition. A controller ( ) is coupled to the actuatable headrest device ( ) and the crash sensor ( ). The controller ( ) determines a crash velocity value and a crash displacement value based on the crash sensor signal. The controller ( ) has a threshold value functionally related to the determined crash displacement value. The controller ( ) controls actuation of the actuatable headrest device ( ) in response to the determined crash velocity value relative to the threshold value.

System and method for controlling an actuatable occupant protection device

An apparatus for controlling an actuatable occupant restraint device for a vehicle, the restraining device having a plurality of actuatable stages (24, 26), the apparatus including a crash sensor (14, 16) for sensing crash acceleration and providing a crash acceleration signal indicative thereof. A controller (22) includes an integrator (72, 172) for determining a velocity value from the crash acceleration signal and for providing a velocity signal (74, 174). The controller (22) is coupled to the actuatable device for (i) effecting actuation of a first of the actuatable stages (24) when the determined velocity value exceeds a first threshold value, and (ii) upon the determined velocity value exceeding a second threshold value, determining a crash severity index (112, 212) having a value related to a time interval from when the determined velocity value (74, 174) exceeds the first threshold value (88, 188) to when the determined velocity value exceeds the second threshold value (96, 196). The controller effects actuation of a second of the actuatable stages (26) in response to the crash severity index value (112, 212).

Method and apparatus for controlling an actuatable restraint device

An apparatus (10) for controlling actuation of a first actuatable restraint (18) and a second actuatable restraint (20) includes a first crash accelerometer (22) for providing a discriminating crash acceleration signal when a crash event is sensed in a first direction and a safing crash acceleration signal when a crash event is sensed in a second direction. A second crash accelerometer (34) provides a safing crash acceleration signal when a crash event is sensed in the first direction and a discriminating crash acceleration signal when a crash event is sensed in the second direction. A third crash accelerometer (90) provides another safing crash signal when a crash event is sensed in either the first or second directions. The first actuatable restraint (18) is actuated when the first accelerometer (22) provides the discriminating crash acceleration signal and either the second or third accelerometers provide a safing crash signal. The second actuatable restraint (20) is actuated when the second accelerometer (34) provides a discriminating crash signal and either the first or the third accelerometer provides a safing crash signal.

Method and apparatus for sensing impact crash conditions with safing

An apparatus (10) for controlling actuation of a first actuatable restraint (18) and a second actuatable restraint (20) includes a first crash accelerometer (22) for providing a primary crash acceleration signal when a crash event is sensed in a first direction and a safing crash acceleration signal when a crash event is sensed in a second direction. A second crash accelerometer (34) provides a safing crash acceleration signal when a crash event is sensed in the first direction and a primary crash acceleration signal when a crash event is sensed in the second direction. The first actuatable restraint (18) is actuated when the first accelerometer (22) provides the primary crash acceleration signal and the second accelerometer (34) provides the safing crash signal. The second actuatable restraint (20) is actuated when the first accelerometer (22) provides the safing crash signal and the second accelerometer (34) provides said primary crash signal.

Method and apparatus for providing a safing function for side impact

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Novi, MI, United States of America

Huahn Fern Yeh