CONTROL DEVICE AND ENGINE CONTROL DEVICE

• US 20090271087A1
• Filed: 11/28/2007
• Published: 10/29/2009
• Est. Priority Date: 11/29/2006
• Status: Abandoned Application

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Motonaga, Yutaka
• Application Number:
  US12/312,776
• Publication Number:
  US 20090271087A1
• Time in Patent Office: Days
• US Class Current: 701/102
• CPC Class Codes: B60W 30/18018 Start-stop drive, e.g. in a traffic jam
• CPC Class Codes: B60W 30/192 Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
• CPC Class Codes: F02D 41/021 Introducing corrections for particular conditions exterior to the engine conjoint control of vehicle sub-units for propelling the vehicle B60W30/18
• CPC Class Codes: F02D 41/042 for stopping the engine
• CPC Class Codes: F02N 11/0837 Environmental conditions thereof, e.g. traffic, weather or road conditions
• CPC Class Codes: F02N 11/10 Safety devices F02N11/08 takes precedence
• CPC Class Codes: F02N 2200/061 Battery state of charge [SOC]
• CPC Class Codes: F02N 2200/0805 Detection of vehicle emergency state, e.g. from ABS, ESP, external sensors
• CPC Class Codes: F02N 2200/125 Information about other vehicles, traffic lights or traffic congestion
• CPC Class Codes: F02N 2300/306 with external senders or receivers, e.g. receiving signals from traffic lights, other vehicles or base stations
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

A EFI-ECU 300 that stops an engine when a vehicle has stopped and that starts the engine when an accelerator has been stepped, includes a RAM 304 that stores information from a communication device 301 that acquires information of the outside of the vehicle, and a CPU 302 that determines whether there is need to activate a security device of the vehicle based on information stored in the RAM 304 and that keeps ready condition of the security device if it determines that there is need to activate the security device. Therefore the EFI-ECU 300 enhances the security while the vehicle is stopping.

Claims

1. A control device that stops an engine when a vehicle has stopped and that starts the engine when an accelerator has been stepped, comprising:

a memory portion that stores information from an acquire-external-information portion that acquires information of the outside of the vehicle; and

a control portion that determines whether there is need to activate a security device of the vehicle based on information stored in the memory portion, and that keeps ready condition to activate the security device if there is need.

2. An engine control device mounted to a vehicle, comprising:

a determine-vehicle-stop portion that determines whether the vehicle has stopped;

a determine-activation portion that determines whether there is need to activate a security device of the vehicle if the determine-vehicle-stop portion determines that the vehicle has stopped;

a determine-availability-of-stop-engine portion that determines whether to stop an engine or not to stop the engine based on the determination made by the determine-activation portion; and

a stop-engine portion that stops the engine of the vehicle based on the determination made by the determine-availability-of-stop-engine portion.

3. The engine control device as claimed in claim 2, wherein power supply to the security device of the vehicle is controlled by revolution of the engine.