Eco-run control device and eco-run control method

• US 8,311,725 B2
• Filed: 06/02/2010
• Issued: 11/13/2012
• Est. Priority Date: 06/08/2009
• Status: Active Grant

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Yamaguchi, Kazuhi
• Primary Examiner(s): Vo, Hieu T
• Application Number:
  US12/792,140
• Publication Number:
  US 20100312460A1
• Time in Patent Office: 895 Days
• Field of Search: 701/112, 701/101, 701/102, 701/113, 701/115, 123/179.3, 123/179.4
• US Class Current: 701/112
• CPC Class Codes: F02N 11/0833 Vehicle conditions F02N11/0822, F02N11/0825 take precedence
• CPC Class Codes: F02N 2200/023 Engine temperature
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

An eco-run control unit performs an eco-run control of stopping an engine mounted on a vehicle automatically on the basis of stop conditions and of restarting the engine automatically on the basis of restart conditions while the engine is stopped automatically by the eco-run control. An acquiring unit acquires information for identifying a vehicle type of the vehicle on which the eco-run control device is mounted. A determining unit determines whether the identified vehicle type is coincident with any of vehicle types stored in a storage unit. A setting unit sets the eco-run control to a specific control depending on one of the vehicle types when the determining unit determines that the identified vehicle type is coincident with the one of the stored vehicle types. The setting unit sets the eco-run control to a default control corresponding to a default vehicle type and permit the eco-run control unit to stop the engine automatically until a determination of the determination unit is completed. The setting unit prohibits the eco-run control unit from stopping the engine automatically when the determining unit determines that the identified vehicle type is different from any of the stored vehicle types.

Claims

1. An eco-run control device configured to perform an eco-run control of stopping an engine mounted on a vehicle automatically on the basis of stop conditions and of restarting the engine automatically on the basis of restart conditions while the engine is stopped automatically by the eco-run control, the eco-run control device comprising:

an eco-run control unit configured to perform the eco-run control;

an acquiring unit configured to acquire information for identifying a vehicle type of the vehicle on which the eco-run control device is mounted;

a determining unit configured to determine whether the vehicle type identified by the information acquired by the acquiring unit is coincident with any of a plurality of vehicle types stored in a storage unit; and

a setting unit configured to set the eco-run control to be performed by the eco-run control unit to a specific control depending on one of the vehicle types when the determining unit determines that the identified vehicle type is coincident with the one of the stored vehicle types,

wherein the setting unit sets the eco-run control to be performed by the eco-run control unit to a default control corresponding to a default vehicle type and permit the eco-run control unit to stop the engine automatically until a determination of the determination unit is completed, and

wherein the setting unit prohibits the eco-run control unit from stopping the engine automatically when the determining unit determines that the identified vehicle type is different from any of the stored vehicle types.

2. The eco-run control device as set forth in claim 1,

wherein the vehicle type includes a place where the vehicle is intended to be used and the restart conditions vary depending on the place,

wherein the acquiring unit acquires information for identifying the place,

wherein the determining unit determines whether the place identified by the information acquired by the acquiring unit is coincident with any of a plurality of places stored in the storage unit, and

wherein the setting unit controls the eco-run control unit to restart the engine and then prohibits the eco-run control unit from stopping the engine automatically when the determining unit determines that the identified place is different from any of the stored places during the engine is stopped automatically by the eco-run control.

3. The eco-run control device as set forth in claim 2,

wherein the vehicle type includes a type of the engine mounted on the vehicle and the stop conditions vary depending on the type of the engine,

wherein the acquiring unit acquires information for identifying the type of the engine,

wherein the determining unit determines whether the type of the engine identified by the information acquired by the acquiring unit is coincident with any of a plurality of types of the engine, stored in the storage unit, and

wherein the setting unit prohibits the eco-run control unit to from stopping the engine automatically when the determining unit determines that the identified type of the engine is different from any of the stored types of engine at least one of before the engine is stopped automatically by the eco-run control and after the engine is restarted by the eco-run control.

4. The eco-run control device as set forth in claim 3,

wherein the determining unit determines whether the identified place is coincident with any of stored places by comparing the identified place with the stored places first multiple times, and

wherein the determining unit determines whether the identified type of the engine is coincident with any of the stored types of the engine by comparing the identified type of the engine with the stored types of the engine second multiple times.

5. The eco-run control device as set forth in claim 4, wherein the first multiple times are more than the second multiple times.

6. The eco-run control device as set forth in claim 1, further comprising:

a test unit configured to test whether the vehicle is out of order before the engine is stopped automatically by the eco-run control; and

a prohibiting unit configured to prohibit the eco-run control unit from stopping the engine automatically when the test unit determines that the vehicle is out of order,

wherein the prohibiting unit determines whether a test of the test unit is completed and prohibits the eco-run control unit from stopping the engine automatically until the test of the test unit is completed.

7. The eco-run control device as set forth in claim 6, further comprising:

a starter driving unit configured to drive a starter for restarting the engine,

wherein the test unit is configured to test whether the starter driving unit is out of order before the engine is stopped automatically by the eco-run control, and

wherein the prohibiting unit is configured to prohibit the eco-run control unit from stopping the engine automatically when the test unit determines that the vehicle is out of order.

8. An eco-run control method for performing an eco-run control of stopping an engine mounted on a vehicle automatically on the basis of stop conditions and of restarting the engine automatically on the basis of restart conditions while the engine is stopped automatically by the eco-run control, the eco-run control method comprising:

performing the eco-run control;

acquiring information for identifying a vehicle type of the vehicle on which the eco-run control device is mounted;

determining whether the vehicle type identified by the acquired information is coincident with any of a plurality of vehicle types stored in a storage unit;

setting the eco-run control to be performed to a default control corresponding to a default vehicle type and permitting to stop the engine automatically in the performing until the determining is completed;

setting the eco-run control to be performed to a specific control depending on one of the vehicle types when it is determined that the identified vehicle type is coincident with the one of the stored vehicle types in the determining; and

prohibiting stopping the engine automatically in the performing when it is determined that the identified vehicle type is different from any of the stored vehicle types in the determining.