Remote engine control system

• US 20080262662A1
• Filed: 04/08/2008
• Published: 10/23/2008
• Est. Priority Date: 04/19/2007
• Status: Active Grant

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Higashi, Akihiro
• Granted Patent: US 7,853,367 B2
• Time in Patent Office: Days
• US Class Current: 701/2
• CPC Class Codes: B60R 25/209 Remote starting of engine
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: F02N 11/0807 Remote means

Abstract

In a remote engine control system, a relay device receives a vehicle equipment control request containing first identification information, updates the first identification information to second identification information, and transmits the updated vehicle equipment control request to an in-vehicle device.

Claims

1. A remote engine control system that remotely controls an engine of a vehicle, the remote engine control system comprising:

a relay device that receives a vehicle equipment control request containing first identification information, updates the first identification information in the vehicle equipment control request to second identification information to obtain an updated vehicle equipment control request, and transmits the updated vehicle equipment control request; and

an in-vehicle device arranged in the vehicle, the in-vehicle device including

a determining unit that determines whether a vehicle equipment control request is acceptable based on identification information in the vehicle equipment control request;

a command identifying unit that determines, when the vehicle equipment control request is acceptable, whether the vehicle equipment control request represents a command, and identifies a type of the command; and

an engine control unit that remotely controls an engine of the vehicle based on the command.

2. The remote engine control system according to claim 1, wherein

the second identification information uniquely identifies the relay device, and

the relay device includes a storing unit that stores therein in advance the second identification information.

3. The remote engine control system according to claim 1, wherein the relay device includes an arithmetic operation unit that performs a predetermined arithmetic operation on the first identification information to calculate the second identification information.

4. The remote engine control system according to claim 1, further comprising a portable terminal that transmits the first identification information that uniquely identifies the portable terminal to the relay device.