Remote Control Engine Starting Device for Vehicle

• US 20070257769A1
• Filed: 07/10/2007
• Published: 11/08/2007
• Est. Priority Date: 01/15/2003
• Status: Active Grant

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Matsubara, Manabu, Yoshimura, Minoru
• Granted Patent: US 7,514,811 B2
• Time in Patent Office: Days
• US Class Current: 340/5.610
• CPC Class Codes: B60R 25/04 operating on the propulsion system, e.g. engine or drive motor
• CPC Class Codes: B60R 25/209 Remote starting of engine
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks

Abstract

A remote control engine starting device includes an immobilizer and a remote engine starter for starting an engine when an engine start command is given from a remote location. The immobilizer further includes an interrogating signal outputting section, which outputs an interrogating signal when a signal related to engine starting is received, and an engine start permitting section, which gives engine start permission when a remote engine starter code that the remote engine starter outputs in response to the interrogating signal matches a remote engine starter verifying code preregistered in the immobilizer. The remote engine starter further includes an engine start signal outputting sections which outputs a signal related to engine starting and a code outputting section, which in response to the interrogating signal, outputs the remote engine starter code preregistered in the remote engine starter.

Claims

1. A remote control engine starting device for a vehicle for starting an engine when an engine start command is given from a remote location comprising:

a remote engine starter; and

an immobilizer, wherein

said immobilizer comprises an activation signal outputting section which outputs an activation signal to a key cylinder upon receiving an engine starting signal by an IG key, an interrogating signal outputting section which outputs an interrogating signal to said remote engine starter upon receiving an engine starting signal from said remote engine starter, and an engine start permitting section which outputs the engine start permitting signal, wherein

said remote engine starter comprises an engine start signal outputting section which outputs said engine starting signal and a code outputting section which outputs a remote engine starter code preregistered in said remote engine starter in response to said interrogating signal which is output from said immobilizer, wherein

said immobilizer outputs an activation signal and said interrogating signal upon receiving said engine starting signal, determines whether or not a key code matches a preregistered code in said immobilizer upon receiving said key code output in response to said activation signal, and determines whether or not said remote engine starter code matches said preregistered code in said immobilizer, when said immobilizer receives a remote engine starter code output in response to said interrogating signal, and wherein

said engine start permitting section outputs an engine start permitting signal when said remote engine starter code matches said preregistered code in said immobilizer.

2. A remote control engine starting device for a vehicle as claimed in claim 1, wherein

said immobilizer outputs said interrogating signal to said remote engine starter when said immobilizer receives said engine starting signal from said remote engine starter while said engine starting signal by said IG key is not being received.

3. A remote control engine starting device for a vehicle as claimed in claim 1, wherein

said engine start permitting section does not output said engine start permitting signal when said key code or said remote engine starter code does not match said preregistered code in said immobilizer.