System and method for vehicle control

Patent metadata

Field	Value
Publication number	US-2019061685-A1
Application number	US-201715823807-A
Country	US
Kind code	A1
Filing date	Nov 28, 2017
Priority date	Aug 22, 2017
Publication date	Feb 28, 2019
Grant date	—

Abstract

A system and method for a vehicle control are provided. The system provides a smartkey-free starting function of a vehicle and includes a communicating unit that has a radio frequency (RF) antenna and a low frequency (LF) antenna and connects wireless communication with a user terminal which is within a predetermine sensing distance through the RF antenna. A body controller executes a door unlock according to a remote control signal of the user terminal. A door sensor senses door open and door closed signals and a start stop button generates a start on signal based on a button input. A controller initiates a starting of the vehicle when vehicle start condition of a state in which the user terminal is connected through the LF antenna of the communicating unit forming a communication region in the vehicle is satisfied, when the start on signal is input.

First claim

What is claimed is:

1 . A system for a vehicle control providing a smartkey-free starting function of a vehicle, comprising:
a communicating unit including a radio frequency (RF) antenna and a low frequency (LF) antenna and configured to connect wireless communication with a user terminal which is within a predetermined sensing distance through the RF antenna; a body controller configured to execute a door unlock according to a remote control signal of the user terminal; a door sensor configured to sense door open and door closed signals; a start stop button configured to generate a start on signal based on a button input; and a controller configured to initiate a starting of the vehicle when a vehicle start condition of a state in which the user terminal is connected through the LF antenna of the communicating unit forming a communication region in the vehicle is satisfied, when the start on signal is input.

2 . The system of claim 1 , wherein the communicating unit includes Bluetooth low energy.

3 . The system of claim 1 , wherein the communicating unit includes:
an RF antenna configured to radiate an RF signal to an outside of the vehicle and perform a remote wireless communication connection with the user terminal; an LF antenna configured to radiate an LF signal to an inside of the vehicle and perform a local wireless communication connection with the user terminal existing inside the vehicle; and a control module configured to store authentication information of a first key value and a second key value which are independent from each other for each connecting the user terminal through the RF antenna or the LF antenna.

4 . The system of claim 3 , wherein: the control module is configured to connect the user terminal through the LF antenna and confirm whether a user is within the vehicle, when the door open and door closed signals of the sensor are generated after the door unlock.

5 . The system of claim 3 , wherein the control module is configured to check received signal strength indicator (RSSI) of the user terminal through the LF antenna and determine that the user terminal is within the vehicle when the RSSI is a reference value or greater.

6 . The system of claim 3 , wherein the control module is configured to perform authentication with the second key value which is different from the first key value used in the connection of the RF antenna during the wireless communication connection between the LF antenna and the user terminal.

7 . The system of claim 6 , wherein the controller is configured to limit the starting of the vehicle when any one of vehicle starting conditions that the RSSI of the user terminal is the reference value or greater and the user terminal is connected to the LF antenna with the authentication by the second key value which is different from the RF antenna is not satisfied.

8 . The system of claim 1 , wherein the controller is configured to transmit the start on signal to a driving source of the vehicle and initiate the starting of the vehicle.

9 . The system of claim 1 , wherein the communicating unit is implemented by any one communication device of Wifi, wireless LAN, radio frequency (RF), and Zigbee that perform local communication connection with the user terminal.

10 . A method for a vehicle control of a system for a vehicle control providing a smartkey-free starting function of a vehicle, comprising:
connecting, by a controller, wireless communication with a user terminal which is within a sensing distance of Bluetooth low energy (BLE) communication using a radio frequency (RF) antenna of a communicating unit; unlocking, by the controller, a door when a door unlock signal is received from the user terminal; attempting, by the controller, a wireless communication connection with the user terminal using a low frequency (LF) antenna of the communicating unit forming a BLE communication region in the vehicle, when a door sensor senses door open and door closed signals; and initiating, by the controller, a starting of the vehicle when a vehicle starting condition of a state in which the user terminal is connected through the LF antenna is satisfied, when a start on signal is input through a start stop button.

11 . The method of claim 10 , wherein the connecting of the wireless communication with the user terminal includes:
performing, by the controller, a pairing with the user terminal and connecting the wireless communication when authentication with a unique first key value which is registered in advance is successful to approve an open and close control of the door.

12 . The method of claim 10 , wherein the unlocking of the door includes:
transmitting, by the controller, a response according to the unlock of the door to the user terminal.

13 . The method of claim 10 , wherein in the unlocking of the door, the door is switched to a locked state when the vehicle start on signal is not input within a predetermined period of time after the unlock of the door input and a connection state of the wireless communication is checked at a predetermined time period.

14 . The method of claim 10 , wherein the attempting of the wireless communication connection with the user terminal includes:
radiating, by the controller, an LF signal of the LF antenna to an inside region of the vehicle and connecting the wireless communication when authentication with a second key value of the user terminal is successful; or determining, by the controller, that the user terminal is extraneous to the vehicle when the connection through the LF antenna fails and maintaining the connection state through the RF antenna.

15 . The method of claim 10 , wherein in the initiating of the starting of the vehicle, the starting of the vehicle is initiated when the vehicle starting condition in which authentication is performed with an independent second key value which is different from the first key value used in the connection of the RF antenna is further satisfied during the connection of the LF antenna.

16 . The method of claim 15 , wherein in the initiating of the starting of the vehicle, the starting of the vehicle is initiated when a vehicle starting condition of a state in which received signal strength indicator (RSSI) of the user terminal measured by the LF antenna is a reference value or greater is further satisfied.

17 . The method of claim 16 , wherein in the initiating of the starting of the vehicle, the starting of the vehicle is limited when any one of the vehicle starting conditions of the connection of the user terminal through the LF antenna, the authentication with the independent second key value, and the received signal strength indicator (RSSI) is not satisfied.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Lee Jeongtae

Classifications

• B60R25/209 Primary

  Remote starting of engine · CPC title

• B60R2325/101

  Bluetooth® · CPC title

• B60R2325/205

  Mobile phones · CPC title

• B60R25/2018 Primary

  Central base unlocks or authorises unlocking · CPC title

• B60R16/0315

  using multiplexing techniques (multiplexing for transmission of signals G08C15/00; multiplexing for electrical communication in general H04J) · CPC title