VEHICLE SPEED CONTROL SYSTEM AND METHOD

• US 20140142818A1
• Filed: 10/10/2013
• Published: 05/22/2014
• Est. Priority Date: 11/22/2012
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: LEE, HOU-HSIEN, LEE, CHANG-JUNG, LO, CHIH-PING
• Application Number:
  US14/050,359
• Publication Number:
  US 20140142818A1
• Time in Patent Office: Days
• US Class Current: 701/51
• CPC Class Codes: G08G 1/052 with provision for determining speed or overspeed speed measuring in general G01P
• CPC Class Codes: G08G 1/096725 where the received information generates an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096741 where the source of the transmitted information selects which information to transmit to each vehicle
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station

Abstract

A vehicle speed control method detects a speed of a vehicle by a speed sensor of the vehicle, and determines location information of the vehicle by a global positioning system when the vehicle is driving on a road. The method transmits the location information of the vehicle to a host via a network, and receives speed limit information of the road sent from the host. The method then determines whether the speed of the vehicle exceeds a speed limit range of the road. If the speed of the vehicle exceeds the speed limit range of the road, the controls an automatic gearbox of the vehicle to adjust the speed of the vehicle to fall within the speed limit range.

Claims

1. A vehicle speed control method, comprising:

detecting a speed of a vehicle on a road by a speed sensor of the vehicle, and determining location information of the vehicle by a global positioning system;

transmitting the location information of the vehicle to a host via a network, and receiving speed limit information of the road sent from the host, wherein the speed limit information is determined according to the location information and comprises a speed limit range of the road;

determining whether the speed of the vehicle exceeds the speed limit range of the road; and

in response to determining that the speed of the vehicle exceeds the speed limit range of the road, controlling an automatic gearbox of the vehicle to adjust the speed of the vehicle to fall within the speed limit range by sending a control command to a control unit connected to the automatic gearbox.

2. The method as claimed in claim 1, wherein the host stores an electronic map and road speed limit data in a database, and when receiving the location information of the vehicle, the host determines a position of the vehicle on the electronic map according to the location information, determines the road where the vehicle locates according to the determined position, and searches the speed limit information of the road from the road speed limit data.

3. The method as claimed in claim 2, wherein the road speed limit data comprises road name information in relation to roads of a district, a highest speed limit and a lowest speed limit of each road.

4. The method as claimed in claim 1, further comprising:

in response to determining the speed of the vehicle exceeds the speed limit range of the road, sending a first prompt to alert a driver of the vehicle that the speed of the vehicle exceeds the speed limit range of the road.

5. The method as claimed in claim 1, further comprising:

after adjusting the speed of the vehicle, sending a second prompt to alert a driver of the vehicle that the speed of the vehicle has been adjusted to fall within the speed limit range of the road.

7. The system as claimed in claim 1, wherein the host stores an electronic map and road speed limit data in a database, and when receiving the location information of the vehicle, the host determines a position of the vehicle on the electronic map according to the location information, determines the road where the vehicle locates according to the determined position, and searches the speed limit information of the road from the road speed limit data.

8. The system as claimed in claim 7, wherein the road speed limit data comprises road name information in relation to roads of a district, a highest speed limit and a lowest speed limit of each road.

6. A vehicle speed control system, comprising:

a processor; and

a storage device that stores one or more programs, when executed by the processor, causing the processor to perform operations;

detecting a speed of a vehicle on a road by a speed sensor of the vehicle, and determining location information of the vehicle by a global positioning system;

transmitting the location information of the vehicle to a host via a network, and receiving speed limit information of the road sent from the host, wherein the speed limit information is determined according to the location information and comprises a speed limit range of the road;

determining whether the speed of the vehicle exceeds the speed limit range of the road; and

in response to determining that the speed of the vehicle exceeds the speed limit range of the road, controlling an automatic gearbox of the vehicle to adjust the speed of the vehicle to fall within the speed limit range by sending a control command to a control unit connected to the automatic gearbox.

9. The system as claimed in claim 6, wherein the operations further comprise:

in response to determining the speed of the vehicle exceeds the speed limit range of the road, sending a first prompt to alert a driver of the vehicle that the speed of the vehicle exceeds the speed limit range of the road.

10. The system as claimed in claim 6, wherein the operations further comprise:

after adjusting the speed of the vehicle, sending a second prompt to alert a driver of the vehicle that the speed of the vehicle has been adjusted to fall within the speed limit range of the road.

11. A non-transitory computer-readable medium having stored thereon instructions that, when executed by a processor of a vehicle speed controlling system, cause the processor to perform operations:

detecting a speed of a vehicle on a road by a speed sensor of the vehicle, and determining location information of the vehicle by a global positioning system;

transmitting the location information of the vehicle to a host via a network, and receiving speed limit information of the road sent from the host, wherein the speed limit information is determined according to the location information and comprises a speed limit range of the road;

determining whether the speed of the vehicle exceeds the speed limit range of the road; and

in response to determining that the speed of the vehicle exceeds the speed limit range of the road, controlling an automatic gearbox of the vehicle to adjust the speed of the vehicle to fall within the speed limit range by sending a control command to a control unit connected to the automatic gearbox.

12. The medium as claimed in claim 11, wherein the host stores an electronic map and road speed limit data in a database, and when receiving the location information of the vehicle, the host determines a position of the vehicle on the electronic map according to the location information, determines the road where the vehicle locates according to the determined position, and searches the speed limit information of the road from the road speed limit data.

13. The medium as claimed in claim 12, wherein the road speed limit data comprises road name information in relation to roads of a district, a highest speed limit and a lowest speed limit of each road.

14. The medium as claimed in claim 11, wherein the operations further comprise:

in response to determining the speed of the vehicle exceeds the speed limit range of the road, sending a first prompt to alert a driver of the vehicle that the speed of the vehicle exceeds the speed limit range of the road.

15. The medium as claimed in claim 11, wherein the operations further comprise:

after adjusting the speed of the vehicle, sending a second prompt to alert a driver of the vehicle that the speed of the vehicle has been adjusted to fall within the speed limit range of the road.