Internal combustion engine having heat accumulator, control of heat supply system and control method of internal combustion engine

• US 6,532,911 B2
• Filed: 07/19/2001
• Issued: 03/18/2003
• Est. Priority Date: 07/26/2000
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Suzuki, Makoto, Arisawa, Katuhiko, Tabata, Masakazu
• Primary Examiner(s): Moulis, Thomas N.
• Application Number:
  US09/907,596
• Publication Number:
  US 20020011221A1
• Time in Patent Office: 607 Days
• Field of Search: 123/41.14, 123/142.5 R
• US Class Current: 123/41.14
• CPC Class Codes: B60H 1/00492 comprising regenerative heating or cooling means, e.g. heat accumulators
• CPC Class Codes: B60H 1/00499 Heat or cold storage without phase change including solid bodies, e.g. batteries
• CPC Class Codes: F01P 11/20 concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
• CPC Class Codes: F01P 2011/205 using heat-accumulators
• CPC Class Codes: F01P 2037/02 starting
• CPC Class Codes: F02N 19/10 by heating of engine coolants

Abstract

According to an internal combustion engine of the invention, release operation of an antitheft device is selected as an event generating by necessity prior to the starting of an engine, and the pre-heat is started based on the generating timing of the selected event. The start timing of the release operation of the antitheft device is high in terms of both necessity as an event generating prior to the starting of the engine and reproducibility of the time length from its start timing to an arbitrary starting timing of the engine. The pre-heat completed state can be secured by starting the pre-heat synchronously with this timing or at a predetermined timing based on the timing, even when the engine is started at an arbitrary timing. Exhaust characteristics and fuel consumption performance can be improved by optimizing the temperature distribution of the engine at starting.

Claims

1. An internal combustion engine for a vehicle, comprising:

a circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium;

a controller that starts to supply the circulation passage with heat by the heat supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine; and

an antitheft device that works while operation of the internal combustion engine is stopped, prevents theft of the vehicle, wherein the heat supply timing by the heat supply device is set taking the timing at which the working release of the antitheft device is started as the timing element.

2. The internal combustion engine according to claim 1, wherein

the working release operation of the antitheft device is sustained at least until the end of heat supply to the circulation passage by the heat supply device.

3. An internal combustion engine for a vehicle, comprising:

a circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium; and

a controller that starts to supply the circulation passage with heat by the heat supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine, wherein the heat supply timing by the heat supply device is set taking the timing at which a door opening/closing sensor that detects an open/close state of a door for getting in and out of the vehicle is opened as the timing element.

4. The internal combustion engine for a vehicle, comprising:

a circulation passage that circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium;

a controller that starts to supply the circulation passage with heat by the heat supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine; and

a seating detection sensor that detects a person seated in a driver'"'"'s seat of the vehicle, wherein the heat supply timing by the heat supply device is set taking the timing at which the seating the person is detected a the timing element.

5. An internal combustion engine for a vehicle, comprising:

a circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium;

a controller that starts to supply the circulation passage with heat by the supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine; and

a seat belt fastening detection sensor that detects fastening of a seat belt provided on the driver'"'"'s seat of the vehicle, wherein the heat supply timing by the heat supply device is set taking the timing at which fastening of the seat belt is detected as the timing element.

6. An internal combustion engine for a vehicle, comprising:

a circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium;

a controller that starts to supply the circulation passage with heat by the heat supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine, and

a brake operation detection sensor that detects a brake operation of the vehicle, wherein the heat supply timing by the heat supply device is set taking the timing at which the brake operation is detected as the timing element.

7. An internal combustion engine for a vehicle, comprising:

a circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium;

a controller that starts to supply the circulation passage with heat by the heat supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine; and

a clutch operation detection sensor that detects a clutch operation of the vehicle, wherein the heat supply timing by the heat supply device is set taking the timing at which the clutch operation is detected as the timing element.

8. An internal combustion engine for a vehicle, comprising:

a circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium;

a controller that starts to supply the circulation passage with heat by the heat supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine;

a lock that locks a door for getting in and out of the vehicle; and

a lock release detection sensor that detects release of the lock and an open/close state of a door, wherein the heat supply timing by the heat supply device is set taking the timing at which release of the lock is detected as the timing element.

9. An internal combustion engine for a vehicle, comprising:

a circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium;

a controller that starts to supply the circulation passage with heat by the heat supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine; and

an external input device that makes the controller recognize the timing element through an input operation from outside.

10. The internal combustion engine according to claim 9, wherein

the external input device makes the input operation be executed remote from the vehicle.

11. The internal combustion engine according to claim 9, wherein

the external input device makes the input operation be executed through voice.

12. The internal combustion engine according to claim 9, wherein

the external input device comprises a display for displaying an operation panel, and makes the input operation be executed through a touch operation to the operation panel.

13. An internal combustion engine for a vehicle, comprising:

a circulation passage that circulates a heat medium;

an heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium; and

a controller that starts to supply the circulation passage with heat by the heat supply device, at a timing set based on specific timing elements related to starting of the engine, and prior to the starting of the engine, wherein the controller supplies the engine with heat by the heat supply device a plurality of times after the start of the heat supply until the starting of the engine.

14. The internal combustion engine according to claim 13, wherein

the controller makes at least one of the plurality of times of heat supply by the heat supply device be executed at the time of starting the engine.

15. A control apparatus of a heat receiving object, comprising:

a heat supply device that supplies a heat receiving object with heat when a predetermined condition is established; and

a controller that decides the establishment of the predetermined condition based on a specific state related to the starting of the heat receiving object and, at the same time, controls the supply timing of heat to the heat receiving object based on the specific state related to the starting operation of the heat receiving object, wherein the controller makes heat supply a plurality of times by the heat supply device to the heat receiving object be executed from after the start of supply of heat to the heat receiving object until the heat receiving object starts to operate.

16. The control apparatus according to claim 15, wherein

at least one of the plurality of times of heat supply by the heat supply device is executed at the time of starting operation of the heat receiving object.

17. The control apparatus according to claim 15, further comprising:

an antitheft device that prevents theft of a vehicle, wherein the specific state is a working state of the antitheft device.

18. An internal combustion engine comprising:

a circulation passage that circulates a heat medium;

a heat accumulator that accumulates heat;

a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium; and

a controller that supplies the engine with heat a plurality of times by the heat supply device until the engine starts.

19. The internal combustion engine according to claim 18, wherein

the controller makes at least one of the plurality of times of heat supply by the heat supply device be executed at the time of starting the engine.

20. A control apparatus of a heat supply system, comprising:

a heat receiving object;

a heat supply system that supplies the heat receiving object with heat; and

a controller that supplies the heat receiving object with heat by the heat supply system a plurality of times from after the start of supply of heat to the heat receiving object until the heat receiving object starts to operate.

21. The control according to claim 20, wherein

at least one of the plurality of times of heat supply by the heat supply system is executed at the time of starting operation of the heat receiving object.

22. The control apparatus according to claim 20, wherein

the heat receiving object is a motor.

23. The control apparatus according to claim 22, wherein

the motor comprises an internal combustion engine.

24. A control method of an internal combustion engine including a circulation passage that circulates a heat medium, a heat accumulator that accumulates heat, and a heat supply device that supplies the circulation passage with heat accumulated by the heat accumulator through the heat medium, comprising steps of:

recognizing a specific timing element prior to the starting of the engine, concerning the starting of the engine; and

starting to supply the circulation passage with heat by the heat supply device prior to the starting of the engine, when the timing element is recognized, wherein the engine is supplied with heat a plurality of times by the heat supply device from after the start of the heat supply until the engine starts.