Passive safety system
First Claim
1. A passive safety system, comprising:
- a passive safety device mounted on a vehicle; and
a passive safety control means having an acceleration sensor detecting acceleration caused by an impact at the time of collision, which receives input an impact acceleration detection signal from the acceleration sensor and operates controllably the passive safety device, wherein the passive safety control means computes a physical quantity based on the impact acceleration detection signal inputted from the acceleration sensor, sets maximum and minimum reference values of the physical quantity in normal driving, performs a computation with respect to addition of a present acceleration inputted from the acceleration sensor to an integrated acceleration value at this point in time when the physical quantity crosses a range defined between the maximum and minimum reference values, and performs a computation with respect to a reset process of the integrated acceleration value when the physical quantity remains within the range defined between the maximum and minimum reference values.
1 Assignment
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Accused Products
Abstract
A passive safety system has a passive safety device mounted on a vehicle, and a passive safety control means having an acceleration sensor detecting acceleration caused by an impact at the time of collision. The passive safety control means receives input an impact acceleration detection signal from the acceleration sensor and operates controllably the passive safety device. Further, the passive safety control means computes a physical quantity based on the impact acceleration detection signal inputted from the acceleration sensor, sets maximum and minimum reference values of the physical quantity in normal driving, performs a computation with respect to addition of a present acceleration inputted from the acceleration sensor to an integrated acceleration value at this point in time when the physical quantity crosses a range defined between the maximum and minimum reference values, and performs a computation with respect to a reset process of the integrated acceleration value when the physical quantity remains within the range defined between the maximum and minimum reference values.
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Citations
10 Claims
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1. A passive safety system, comprising:
- a passive safety device mounted on a vehicle; and
a passive safety control means having an acceleration sensor detecting acceleration caused by an impact at the time of collision, which receives input an impact acceleration detection signal from the acceleration sensor and operates controllably the passive safety device, wherein the passive safety control means computes a physical quantity based on the impact acceleration detection signal inputted from the acceleration sensor, sets maximum and minimum reference values of the physical quantity in normal driving, performs a computation with respect to addition of a present acceleration inputted from the acceleration sensor to an integrated acceleration value at this point in time when the physical quantity crosses a range defined between the maximum and minimum reference values, and performs a computation with respect to a reset process of the integrated acceleration value when the physical quantity remains within the range defined between the maximum and minimum reference values. - View Dependent Claims (2, 3, 4, 5)
- a passive safety device mounted on a vehicle; and
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6. A passive safety system, comprising:
- a passive safety device mounted on a vehicle; and
a passive safety control means having an acceleration sensor detecting acceleration caused by an impact at the time of collision, which receives input an impact acceleration detection signal from the acceleration sensor and operates controllably the passive safety device, wherein the passive safety control means has features of computing a physical quantity based on the impact acceleration detection signal inputted from the acceleration sensor, setting maximum and minimum reference values of the physical quantity in normal driving, performing a computation with respect to addition of a present acceleration inputted from the acceleration sensor to the physical quantity when the physical quantity crosses a range defined between the maximum and minimum reference values, setting a function of operating a subtraction value or an addition value with respect to the present integrated acceleration value when the physical quantity remains within the range defined between the maximum and minimum reference values, and performing a subtraction or an addition of the integrated acceleration value based on the function to modify a reset period of the integrated acceleration value. - View Dependent Claims (7, 8, 9)
- a passive safety device mounted on a vehicle; and
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10. A passive safety system, comprising:
- a passive safety device mounted on a vehicle; and
a passive safety control means having an acceleration sensor detecting acceleration caused by an impact at the time of collision, which receives input an impact acceleration detection signal from the acceleration sensor and operates controllably the passive safety device, wherein the passive safety control means has features of computing a physical quantity based on the impact acceleration detection signal inputted from the acceleration sensor, setting maximum and minimum reference values of the physical quantity in normal driving, performing a computation with respect to addition of a present acceleration inputted from the acceleration sensor to an integrated acceleration value at this point in time when the physical quantity crosses a range defined between the maximum and minimum reference values, measuring a period of time after the physical quantity exceeds the range, and postponing a reset process of the integrated acceleration value when the measured time period is shorter than a required period.
- a passive safety device mounted on a vehicle; and
Specification