Vehicle impact detection device
AssigneeSamsung SDI Co., Ltd.
InventorsHyun Kim, Kyosung Koo
Life of this patent
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Abstract
A vehicle impact detection device includes: an amplifier configured to receive and amplify an impact signal of a vehicle; a comparative voltage circuit configured to generate a first reference signal; a first comparator configured to output a control signal indicating that a predetermined first impact detection condition or a predetermined second impact detection condition is satisfied, based on an amplified signal output by the amplifier and the first reference signal; and a driver configured to cut off an output of a battery on basis of the control signal, wherein the comparative voltage circuit is configured to reduce a magnitude of the first reference signal over time in response to detection of the amplified signal output by the amplifier.
Claims20
A vehicle impact detection device comprising:
- an amplifier configured to receive and amplify an impact signal of a vehicle;
- a comparative voltage circuit configured to generate a first reference signal;
- a first comparator configured to output a control signal indicating that a predetermined first impact detection condition or a predetermined second impact detection condition is satisfied, based on an amplified signal output by the amplifier and the first reference signal;
- and
- a driver configured to cut off an output of a battery on basis of the control signal,
- wherein the comparative voltage circuit is configured to reduce a magnitude of the first reference signal over time in response to detection of the amplified signal output by the amplifier.
A vehicle impact detection method comprising:
- receiving an impact signal of a vehicle and generating an amplified signal by an amplifier;
- generating a first reference signal by a comparative voltage circuit;
- determining whether a predetermined first impact detection condition or a predetermined second impact detection condition is satisfied by a comparator, based on the amplified signal and the first reference signal;
- and
- outputting, by the comparator, a control signal to cut off an output of a battery, in response to the determination that the predetermined first impact detection condition or the predetermined second impact detection condition is satisfied,
- wherein a magnitude of the first reference signal decreases over time in response to the comparative voltage circuit detecting the amplified signal output by the amplifier.
Dependencies are inferred from the claim text.