Control device and control method for occupant protection device
First Claim
1. A control device that controls activation of occupant protection devices each of which include a squib, the control device comprising:
- a power supply circuit that supplies power from a power source to one or more squibs for activating one or more devices of the occupant protection devices; and
a controller operatively connected to the power supply circuit, the controller being programmed to;
determine whether a first condition for activating first two or more devices of the occupant protection devices is satisfied;
determine whether a second condition for activating second one or more devices of the occupant protection devices is satisfied;
in response to the first condition being satisfied, cause the power supply circuit to perform the supply of power to first two or more squibs of the first two or more occupant protection devices corresponding to the first condition at timings that are different between a part and a remaining of the first two or more occupant protection devices;
in response to the second condition being satisfied, cause the power supply circuit to perform the supply of power to second one or more squibs of the second one or more occupant protection devices corresponding to the second condition at a timing, the second one or more occupant protection devices being included in the remaining of the first two or more occupant protection devices; and
in response to the first and second conditions being satisfied simultaneously or continuously, perform the supply of power to the second one or more squibs and first one or more squibs of the part of the first two or more occupant protection devices at a first timing, and then prohibit the supply of power to the second one or more squibs to perform the supply of power to first one or more squibs of the remaining of the first two or more occupant protection devices except for the second one or more occupant protection devices at a second timing that is after the first timing.
1 Assignment
0 Petitions
Accused Products
Abstract
A control device for an occupant protection device includes a power supply unit and a controller. The power supply unit performs supply of power to a squib for activating the occupant protection device. The controller causes the power supply unit to perform the supply of power at a first timing when a first condition is satisfied and causes the power supply unit to perform the supply of power at a second timing when a second condition is satisfied. At least one of the controller and the power supply unit prohibits, for a predetermined time after performing the supply of power at an earlier one timing of the first and second timings, the supply of power at another timing when the first and second conditions are satisfied.
9 Citations
5 Claims
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1. A control device that controls activation of occupant protection devices each of which include a squib, the control device comprising:
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a power supply circuit that supplies power from a power source to one or more squibs for activating one or more devices of the occupant protection devices; and a controller operatively connected to the power supply circuit, the controller being programmed to; determine whether a first condition for activating first two or more devices of the occupant protection devices is satisfied; determine whether a second condition for activating second one or more devices of the occupant protection devices is satisfied; in response to the first condition being satisfied, cause the power supply circuit to perform the supply of power to first two or more squibs of the first two or more occupant protection devices corresponding to the first condition at timings that are different between a part and a remaining of the first two or more occupant protection devices; in response to the second condition being satisfied, cause the power supply circuit to perform the supply of power to second one or more squibs of the second one or more occupant protection devices corresponding to the second condition at a timing, the second one or more occupant protection devices being included in the remaining of the first two or more occupant protection devices; and in response to the first and second conditions being satisfied simultaneously or continuously, perform the supply of power to the second one or more squibs and first one or more squibs of the part of the first two or more occupant protection devices at a first timing, and then prohibit the supply of power to the second one or more squibs to perform the supply of power to first one or more squibs of the remaining of the first two or more occupant protection devices except for the second one or more occupant protection devices at a second timing that is after the first timing. - View Dependent Claims (2, 3, 4)
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5. A control method that controls activation of occupant protection devices each of which includes a squib, the control method comprising:
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performing supply of power from a power source to one or more squibs for activating one or more devices of the occupant protection devices; determining whether a first condition for activating first two or more devices of the occupant protection devices is satisfied; determining whether a second condition for activating second one or more devices of the occupant protection devices is satisfied; in response to the first condition being satisfied, performing the supply of power to first two or more squibs of the first two or more occupant protection devices corresponding to the first condition at timings that are different between a part and a remaining of the first two or more occupant protection devices; in response to the second condition being satisfied, performing the supply of power to second one or more squibs of the second one or more occupant protection devices corresponding to the second condition at a timing, the second one or more occupant protection devices being included in the remaining of the first two or more occupant protection devices; and in response to the first and second conditions being satisfied simultaneously or continuously, performing the supply of power to the second one or more squibs and first one or more squibs of the part of the first two or more occupant protection devices at a first timing, and then prohibiting the supply of power to the second one or more squibs to perform the supply of power to first one or more squibs of the remaining of the first two or more occupant protection devices except for the second one or more occupant protection devices at a second timing that is after the first timing.
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Specification