Method for operating audio, video, and navigation (avn) system, avn system, and vehicle including the same

Patent metadata

Field	Value
Publication number	US-2017099594-A1
Application number	US-201514957565-A
Country	US
Kind code	A1
Filing date	Dec 2, 2015
Priority date	Oct 6, 2015
Publication date	Apr 6, 2017
Grant date	—

Abstract

An audio, video, and navigation (AVN) system includes a battery voltage detection circuit configured to detect an output voltage of a main battery; an e-call power controller configured to output power of a back-up battery (BUB) based on a result of detecting the output voltage; and a central controller configured to receive the power of the BUB and to generate an accident occurrence message when an airbag inflation signal is received.

First claim

What is claimed is:

1 . An audio, video, and navigation (AVN) system comprising:
a battery voltage detection circuit configured to detect an output voltage of a main battery; an e-call power controller configured to output power of a back-up battery (BUB) based on a result of detecting the output voltage; and a central controller configured to receive the power of the BUB and to generate an accident occurrence message when an airbag inflation signal is received.

2 . The AVN system according to claim 1 , wherein the central controller provides an emergency voice call with an emergency rescue center which receives the accident occurrence message.

3 . The AVN system according to claim 1 , further comprising a normal power circuit for supplying power of the main battery to the central controller and a peripheral circuit unit when the output voltage is within a normal output voltage range.

4 . The AVN system according to claim 3 , wherein the e-call power controller charges the BUB when a charge condition is satisfied during the supply of the power of the main battery to the central controller and the peripheral circuit unit.

5 . The AVN system according to claim 4 , wherein the e-call power controller stops the charging of the BUB when a charge stop condition is satisfied during the supply of the power of the main battery to the central controller and the peripheral circuit unit.

6 . The AVN system according to claim 5 , wherein the charge condition or the charge stop condition is determined based on at least one of vehicle power information, temperature information, voltage information of the BUB, and BUB error information.

7 . The AVN system according to claim 1 , wherein the e-call power controller supplies the power of the BUB to the central controller when the output voltage is out of a normal output voltage range.

8 . The AVN system according to claim 1 , wherein the e-call power controller stops the supplying of the power of the BUB to the central controller when the central controller does not receive the airbag inflation signal.

9 . The AVN system according to claim 1 , wherein the accident occurrence message comprises at least one of a vehicle identification number, a phone number of the AVN system, global positioning system (GPS) information, user personal information, and information about whether an accident occurs.

10 . A vehicle comprising the audio, video, and navigation (AVN) system according to claim 1 .

11 . An audio, video, and navigation (AVN) system comprising:
a battery voltage detection circuit for detecting an output voltage of a main battery; an e-call power controller configured to output power of a back-up battery (BUB) based on a result of detecting the output voltage; and a central controller configured to receive the power of the BUB and generating an accident occurrence message when occurrence of an accident of a vehicle is detected.

12 . The AVN system according to claim 11 , wherein the central controller provides an emergency voice call with an emergency rescue center which receives the accident occurrence message.

13 . The AVN system according to claim 11 , further comprising a normal power circuit for supplying power of the main battery to the central controller and a peripheral circuit unit when the output voltage is within a normal output voltage range.

14 . The AVN system according to claim 13 , wherein the e-call power controller charges the BUB when a charge condition is satisfied during the supply of the power of the main battery to the central controller and the peripheral circuit unit.

15 . The AVN system according to claim 14 , wherein the e-call power controller stops the charging of the BUB when a charge stop condition is satisfied during the supply of the power of the main battery to the central controller and the peripheral circuit unit.

16 . The AVN system according to claim 15 , wherein the charge condition is satisfied when:
a first condition that self-diagnosis is completed in an accessory (ACC) mode and an ignition (IGN) mode is activated, which is determined based on vehicle power information; a second condition that an ambient temperature is within a reference temperature range, which is determined based on temperature information; a third condition that a voltage of the BUB is equal to or lower than a reference voltage, which is determined based on voltage information of the BUB; and a fourth condition that BUB error information is not present.

17 . The AVN system according to claim 15 , wherein the charge stop condition is satisfied when:
a fifth condition that both an ACC mode and an IGN mode are deactivated, which is determined based on vehicle power information; a sixth condition that an ambient temperature is out of a reference temperature range, which is determined based on temperature information; a seventh condition that a voltage of the BUB is higher than a specific voltage, which is determined based on voltage information of the BUB; and an eighth condition that BUB error information is present.

18 . The AVN system according to claim 11 , wherein the central controller detects the occurrence of the accident of the vehicle based on at least one of information about whether an airbag inflation signal is received, and information received from a gyro sensor.

19 . A method for operating an audio, video, and navigation (AVN) system, the method comprising:
detecting, by a battery voltage detection circuit, an output voltage of a main battery; supplying, by an e-call power controller, power of a back-up battery (BUB) to a central controller based on a result of detecting the output voltage; and generating, by a central controller, an accident occurrence message by the central controller having received the power of the BUB if the central controller receives an airbag inflation signal.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Oh Hyung Suk

Classifications

• B60R2021/01211

  Expansion of air bags · CPC title

• G08G1/205

  Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental · CPC title

• H04M2242/04

  for emergency applications · CPC title

• B60R2021/01013

  Means for detecting collision, impending collision or roll-over · CPC title

• H04W4/90 Primary

  Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS] · CPC title