Method for controlling vehicle driving

Patent metadata

Field	Value
Publication number	US-9434330-B2
Application number	US-201414266088-A
Country	US
Kind code	B2
Filing date	Apr 30, 2014
Priority date	Oct 24, 2013
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

A method for controlling vehicle driving is provided. The method for controlling vehicle driving enables stable continuation of driving or stable stopping even when a communication fault occurs. The method for controlling vehicle driving includes: determining whether a fault has occurred in a first network between a master controller and a first slave controller; and if it is determined that a fault has occurred in the first network between the master controller and the first slave controller, controlling the master controller to transmit information, which is directed to the first slave controller, a second slave controller through the first network between the master controller and the second slave controller, and controlling the second slave controller to transmit the information received from the master controller to the first slave controller through a second network.

First claim

What is claimed is:

1. A method for controlling vehicle driving, comprising:
determining whether a fault has occurred in a first network between a master controller and a first slave controller; and
when it is determined that a fault has occurred in the first network between the master controller and the first slave controller, controlling the master controller to transmit information, which is directed to the first slave controller, to a second slave controller through the first network between the master controller and the second slave controller, and controlling the second slave controller to transmit the information received from the master controller to the first slave controller through a second network,
wherein the first slave controller is configured to provide power according to a control from the master controller, and
wherein the method further comprises:
when it is determined that a fault has occurred in the first network between the master controller and the first slave controller, controlling the first slave controller to switch to a power supply mode and provide the power to the second slave controller regardless of the control of the master controller.

2. The method of claim 1 , further comprising:
when it is determined that the fault has occurred in the first network between the master controller and the first slave controller, controlling the first slave controller to transmit information, which is directed to the master controller, to the second slave controller through the second network and controlling the second slave controller to transmit the information received from the first slave controller to the master controller through the first network between the second slave controller and the master controller.

3. The method of claim 1 , wherein the master controller is configured to transmit information to and receive information from each of the slave controllers through the first network.

4. The method of claim 1 , wherein each of the slave controllers is configured to transmit information to and receive information from another slave controller of the slave controllers through the second network.

5. The method of claim 1 , further comprising outputting a warning signal indicating that a fault has occurred in the first network when it is determined that a fault has occurred in the first network between the master controller and the first slave controller.

6. The method of claim 1 , further comprising:
when it is determined that a fault has occurred in the first network between the master controller and the first slave controller, determining whether the fault has been removed in the first network between the master controller and the first slave controller; and
when it is determined that the fault has been removed in the first network between the master controller and the first slave controller, controlling the master controller to transmit information to and receive information from the first slave controller through the first network.

7. The method of claim 1 , wherein when the first slave controller does not receive information that is transmitted from the master controller, it is determined that the fault has occurred in the first network.

8. A method for controlling vehicle driving, comprising:
determining whether a fault has occurred in a first network between a master controller and a first slave controller; and
when it is determined that a fault has occurred in the first network between the master controller and the first slave controller, controlling the master controller to transmit information, which is directed to the first slave controller, to a second slave controller through the first network between the master controller and the second slave controller, and controlling the second slave controller to transmit the information received from the master controller to the first slave controller through a second network,
wherein the method further comprising comprises:
when it is determined that a fault has occurred in the first network between the master controller and the first slave controller, determining whether a fault has occurred in the second network between the second slave controller and the first slave controller; and
when it is determined that a fault has occurred in the second network between the second slave controller and the first slave controller, controlling the third slave controller to receive the information from the master controller and transmit the information received from the master controller to the first slave controller through the second network between the third slave controller and the first slave controller.

9. The method of claim 8 , wherein the first slave controller is configured to provide power according to a control from the master controller, and the third slave controller is configured to control a motor of the vehicle, and
wherein the method further comprises:
controlling the first slave controller to transmit information to stop acceleration of the vehicle, to the third slave controller through the second network between the first slave controller and the third slave controller.

10. The method of claim 8 , wherein the first slave controller is configured to provide power according to a control from the master controller, and the third slave controller is configured to control a motor of the vehicle, and
wherein the method further comprises:
controlling the first slave controller to receive a driving speed of the vehicle from the third slave controller through the second network between the first slave controller and the third slave controller; and
when it is determined that the driving speed of the vehicle is equal to or less than a preset speed, controlling a high voltage power source to be shut off.

11. The method of claim 8 , further comprising:
when it is determined that a fault has occurred in the second network between the second slave controller and the first slave controller, determining whether the fault has been removed in the second network between the second slave controller and the first slave controller; and
when it is determined that the fault has been removed in the second network between the second slave controller and the first slave controller, controlling the second slave controller to transmit information to and receive information from the first slave controller through the second network.

12. The method of claim 8 , wherein the first slave controller is configured to provide power according to a control from the master controller, and the third slave controller is configured to control a motor of the vehicle, and
wherein the method further comprises:
when it is determined that a fault has occurred in the second network between the second slave controller and the first slave controller, determining whether a fault has occurred in the second network between the first slave controller and the third slave controller; and
when it is determined that a fault has occurred in the second network between the first slave controller and the third slave controller, controlling the first slave controller shut off any one of power generated in an engine-generator and electrical power output from a battery.

13. The method of claim 12 , further comprising, when it is determined that a fault has occurred in the second network between the first slave controller and the third slave controller, and a fault has not occurred in the first network between the first slave controller and the master controller, controlling the first slave controller to transmit information to the master controller through the first network in order to indicate to stop the vehicle.

Assignees

• Hanwha Techwin Co Ltd

Inventors

• Lee Seong Jun

Classifications

• B60L58/12

  responding to state of charge [SoC] · CPC title

• B60L58/40

  for controlling a combination of batteries and fuel cells · CPC title

• B60L2240/12

  Speed · CPC title

• B60L15/20

  for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed · CPC title

• B60L2210/10

  DC to DC converters · CPC title