Vehicle controller and vehicle control method

• US 20050225175A1
• Filed: 04/04/2005
• Published: 10/13/2005
• Est. Priority Date: 04/12/2004
• Status: Active Grant

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Maehara, Hiroaki, Hagiwara, Masatoshi, Ishio, Masato, Oda, Zenkou, Ikezoe, Akira
• Granted Patent: US 7,280,908 B2
• Time in Patent Office: Days
• US Class Current: 307/10.100
• CPC Class Codes: B60L 2240/445 Temperature
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/30 including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: B60W 2510/0676 Engine temperature
• CPC Class Codes: F02D 2041/0012 with selective deactivation of cylinders
• CPC Class Codes: F02D 35/027 using knock sensors
• CPC Class Codes: F02D 41/0002 Controlling intake air
• CPC Class Codes: F02D 41/0055 Special engine operating conditions, e.g. for regeneration of exhaust gas treatment apparatus
• CPC Class Codes: F02D 41/062 for starting F02D41/061 takes precedence
• CPC Class Codes: F02D 41/2425 Particular ways of programming the data
• CPC Class Codes: F02N 11/08 Circuits or control means specially adapted for starting of engines
• CPC Class Codes: F02N 11/0807 Remote means
• CPC Class Codes: F02N 2200/106 Driver presence, e.g. detected by door lock, seat sensor or belt sensor
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

A vehicle controller controls an operation of an engine of a vehicle when the engine is started with a remote command. The vehicle controller decreases the number of idle revolutions of the engine, supplies diluted fuel to the engine, uses only a few cylinders of the engine, changes parameters used in detecting and preventing knocking of the engine, controls the windows or curtains of the windows of the engine to increase the efficiency of air conditioning, and supplies lesser power to in-vehicle devices.

Claims

1. A vehicle controller that controls operations of a vehicle, comprising:

a remote command receiving unit that receives a remote command related to starting a power mechanism of the vehicle; and

a remote starting control unit that starts and operates the power mechanism under a waiting control, which is different from a riding control, upon the remote command receiving unit receiving the remote command.

2. The vehicle controller according to claim 1, wherein the remote starting control unit operates the power mechanism under a riding control upon the remote command receiving unit receiving the remote command, and the remote starting control unit switches to a waiting control, which is different from the riding control, upon a predetermined condition is satisfied so as to operate the power mechanism under the waiting control.

3. The vehicle controller according to claim 1, wherein when a predetermined condition is satisfied while the power mechanism is operating, the remote starting control unit stops the power mechanism.

4. The vehicle controller according to claim 3, further comprising a notifying unit that outputs a notification that informs a driver of the vehicle about a state of the vehicle, wherein

the remote starting control unit causes the notifying unit to output the notification upon determining satisfaction of the predetermined condition or upon estimating that the predetermined condition is going to be satisfied, and

the remote starting control unit delays stopping the operation of the power mechanism upon receiving a response from the driver during a predetermined time that is counted from the output of the notification by notifying unit.

5. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes running the engine at number of revolutions that is lower than that in the riding control.

6. The vehicle controller according to claim 5, further comprising a knocking detecting unit that detects whether the engine is knocking based on a threshold, wherein

the waiting control includes, while the engine is operating under the waiting control, changing at least one of the threshold and a parameter for corrections used to control the engine when the knocking detecting unit that detects that the engine is knocking.

7. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes running the engine at a concentration of fuel that is lower than that in the riding control.

8. The vehicle controller according to claim 1, wherein the power mechanism is an engine with a plurality of cylinders, and

the waiting control includes running the engine with number of cylinders that is lower than that in the riding control.

9. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes controlling at least one of a rise in number of revolutions of the engine due to operation of an in-vehicle device, a rise in an amount of fuel supplied to the engine when the engine is started, and a rise in an amount of fuel supplied to the engine when a temperature of the engine is low.

10. The vehicle controller according to claim 2, further comprising a cooling-water temperature-measuring unit that measures a temperature of cooling water of the power mechanism, wherein

the predetermined condition is a relation between the temperature measured by the cooling-water temperature-measuring unit and a predetermined value.

11. The vehicle controller according to claim 3, further comprising a cooling-water temperature-measuring unit that measures a temperature of cooling water of the power mechanism, wherein

the predetermined condition is a relation between the temperature measured by the cooling-water temperature-measuring unit and a predetermined value.

12. The vehicle controller according to claim 10, further comprising an air conditioning unit that air-conditions inside of a compartment of the vehicle, wherein

the remote starting control unit controls an operation of the air conditioning unit.

13. The vehicle controller according to claim 11, further comprising an air conditioning unit that air-conditions inside of a compartment of the vehicle, wherein

the remote starting control unit controls an operation of the air conditioning unit.

14. The vehicle controller according to claim 12, further comprising a vehicle-temperature measuring unit that measures temperature in the compartment, wherein

the predetermined condition is a relation between the temperature measured by the vehicle-temperature measuring unit and a predetermined value.

15. The vehicle controller according to claim 13, further comprising a vehicle-temperature measuring unit that measures temperature in the compartment, wherein

the predetermined condition is a relation between the temperature measured by the vehicle-temperature measuring unit and a predetermined value.

16. The vehicle controller according to claim 12, wherein the remote starting control unit starts and operates the power mechanism upon the remote command receiving unit receiving the remote command, and starts and operates the air conditioning unit upon the temperature detected by the cooling-water temperature-measuring unit reaching a predetermined value.

17. The vehicle controller according to claim 13, wherein the remote starting control unit starts and operates the power mechanism upon the remote command receiving unit receiving the remote command, and starts and operates the air conditioning unit upon the temperature detected by the cooling-water temperature-measuring unit reaching a predetermined value.

18. The vehicle controller according to claim 1, wherein the remote starting control unit further executes at least one of operation control of a vehicle window, a curtain, and a power supply of an in-vehicle device.

19. The vehicle controller according to claim 1, further comprising a vehicle-ride detecting unit performs at least one of detecting whether a driver is in the vehicle and estimating that the driver is going to enter the vehicle, wherein

the remote starting control unit doesn'"'"'t not start the power mechanism upon the vehicle-ride detecting unit detecting that the driver is in the vehicle or estimating that the driver is going to enter the vehicle.

20. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes controlling a throttle of the engine and diluting the fuel.

21. The vehicle controller according to claim 1, wherein the waiting control includes gradually diluting the fuel while monitoring a number of revolutions of the engine, and increasing a concentration of fuel supplied to the engine when the number of revolutions fall below a predetermined value.

22. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes re-supplying to the engine an exhaust gas emitted from the engine.

23. The vehicle controller according to claim 22, wherein the waiting control includes gradually increasing an amount of the exhaust gas re-supplied to the engine while monitoring number of revolutions of the engine, and decreasing the amount of the exhaust gas re-supplied to the engine when the number of revolutions fall below a predetermined value.

24. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes controlling a timing of opening and closing of at least one of an intake valve and an exhaust valve of the engine.

25. The vehicle controller according to claim 24, wherein the waiting control includes gradually increasing duration of time during which both the intake valve and the exhaust valve are simultaneously opened while monitoring number of revolutions of the engine, and shortening the duration when the number of revolutions fall below a predetermined value.

26. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes advancing an ignition timing of the engine.

27. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes supplying purge independently of fuel learning.

28. The vehicle controller according to claim 27, wherein the waiting control includes monitoring number of revolutions of the engine, and increasing a ratio of the purge to the fuel until the number of revolutions falls below a predetermined value.

29. The vehicle controller according to claim 1, wherein the power mechanism is an engine, and

the waiting control includes stopping a process for learning in operating the engine.

30. The vehicle controller according to claim 1, wherein the power mechanism is a direct fuel-injection engine, and

the waiting control includes setting condition for entering a stratification combustion mode that are different from that of the riding control and enlarging an execution area of stratification combustion.

31. The vehicle controller according to claim 30, wherein the waiting control includes changing a condition for entering rich spike control in the stratification combustion mode, and enlarging an execution area of rich spike.

32. The vehicle controller according to claim 1, further comprising:

an air conditioning unit that air-conditions inside of a compartment of the vehicle; and

a vehicle temperature measuring unit that measures temperature in the compartment, wherein

the power mechanism is an engine, and

the remote starting control unit sets a target temperature, and controls fall in number of revolutions of the engine based on a difference between the target temperature and the temperature measured by the vehicle temperature measuring unit.

33. The vehicle controller according to claim 32, wherein the waiting control includes increasing the fall in the number of revolutions while monitoring the number of revolutions, and decreasing the fall in the number of revolutions when the number of revolutions fall below a predetermined value.

34. The vehicle controller according to claim 32, further comprising:

a storing unit that stores therein a predetermined temperature of the air conditioning unit when the vehicle is stopped; and

an exterior temperature measuring unit that measures a temperature outside of the compartment, wherein

the remote starting control unit sets the target temperature based on the predetermined temperature stored in the storing unit and the temperature measured by the exterior temperature measuring unit.

35. A vehicle controller comprising:

a remote input receiving unit that receives a remote command for starting an engine of a vehicle; and

an operation determining unit that controls a start of the engine in response to the remote command and an operation of an ignition key for starting the engine, wherein the operation determining unit controls the engine in different manners depending whether the start of the engine is instructed by the remote command or the ignition key.

36. A method for starting an engine of a vehicle, comprising:

receiving a remote command for starting the engine;

receiving an instruction based on operation of an ignition key;

determining whether the start of the engine is instructed by the remote command or the ignition key; and

starting the engine in different manner depending on a result of determination at the determining.