Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Railway vehicle
Patent
1996-10-04
1999-05-04
Cuchlinski, Jr., William A.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Railway vehicle
701 45, 701 46, 280734, 180274, 340436, G06F 1700, G06F 700
Patent
active
058999469
ABSTRACT:
A retardation sensor (20) measures a retardation applied to a vehicle in its longitudinal direction. A speed sensor (28) measures a ground speed of the vehicle at a time point when the retardation exceeds a specified reference retardation. A timer (32) measures a lapse of time period after the time point when the retardation exceeds the reference retardation. A CPU (40) included in a control circuit (30) calculates an amount of deformation of the vehicle from a difference between a value obtained by multiplying the retardation by the ground speed and a value obtained by integrating the retardation twice over the lapse of time period. The CPU (40) then compares the amount of deformation with a preset threshold value. When the amount of deformation exceeds the preset threshold value, the CPU (40) outputs an activation signal to a driving circuit (34), which supplies electricity to a squib (38) in an air bag unit (36) to ignite a gas-generating agent with the squib (38) in response to the activation signal. An activation control apparatus of the invention including the above constituents can determine whether a passive restraint, such as the air bag unit (36), is to be activated without using another operation value and effectively activate the passive restraint at an appropriate timing even when the vehicle crashes into a pole or in an under-ride collision.
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patent: 5216607 (1993-06-01), Diller et al.
patent: 5262949 (1993-11-01), Okano et al.
patent: 5483449 (1996-01-01), Caruso et al.
patent: 5530649 (1996-06-01), Fujishima
patent: 5541842 (1996-07-01), Gioutsos et al.
patent: 5559697 (1996-09-01), Wang
patent: 5610817 (1997-03-01), Mahon et al.
Arthur Gertrude
Cuchlinski Jr. William A.
Toyota Jidosha & Kabushiki Kaisha
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