IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0458459
(2003-06-10)
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우선권정보 |
JP-0113110 (2003-04-17); JP-0195930 (2002-07-04) |
발명자
/ 주소 |
- Kishibata, Kazuyoshi
- Kitagawa, Yuichi
- Sato, Hiroyasu
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출원인 / 주소 |
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
5 |
초록
▼
A vehicle driven by an internal combustion engine incorporating a power supply unit and including a power transmission on/off determination device that gradually opens a throttle valve of the engine to gradually increase a rotational speed of the engine, detects, as a determination value that reflec
A vehicle driven by an internal combustion engine incorporating a power supply unit and including a power transmission on/off determination device that gradually opens a throttle valve of the engine to gradually increase a rotational speed of the engine, detects, as a determination value that reflects a load applied on the internal combustion engine when the speed of the engine increases to a power transmission start rotational speed, and then the throttle valve is further opened by a set angle, determines that the power transmission device is in a state of cutting the power transmission when it is determined from the determination value that the engine load is less than a preset magnitude, and determines that the power transmission device is in a state of performing the power transmission when it is determined from the determination value that the engine load is equal to or more than the preset magnitude.
대표청구항
▼
1. A vehicle driven by an internal combustion engine comprising:a power transmission device that is provided between a crankshaft of said internal combustion engine and drive wheels of said vehicle, and enters a state of transmitting power from said internal combustion engine to said drive wheels wh
1. A vehicle driven by an internal combustion engine comprising:a power transmission device that is provided between a crankshaft of said internal combustion engine and drive wheels of said vehicle, and enters a state of transmitting power from said internal combustion engine to said drive wheels when a rotational speed of said internal combustion engine reaches a predetermined power transmission start rotational speed or higher; and a power supply unit that uses a generator driven by said internal combustion engine as a power source to supply electric power to a load when said vehicle is stopped, wherein said vehicle driven by said internal combustion engine further comprises: rotational speed detection means for detecting the rotational speed of said internal combustion engine; valve control means for on/off determination which controls means for operating a valve that adjusts an intake air amount of said internal combustion engine so as to gradually increase an opening degree of said valve when an instruction to start said generator is provided; determination value detection means for detecting, as a determination value, a value that reflects a magnitude of a load applied on said internal combustion engine when the rotational speed of the internal combustion engine reaches said power transmission start rotational speed in a process where said valve control means for on/off determination gradually increases said valve opening degree, and then, when said valve opening degree is further increased by a set angle that is preset within a range so as not to start said vehicle; and determination means for determining that said power transmission device is in a state of cutting power transmission when it is determined from said determination value that the load applied on the internal combustion engine is less than a preset determination reference load, and determining that said power transmission device is in a state of performing the power transmission when it is determined from the determination value that the load applied on said internal combustion engine is equal to or more than said determination reference load. 2. The vehicle driven by the internal combustion engine according to claim 1, wherein said determination value is a rotational speed of the internal combustion engine when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is more than a determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or less than the determination reference value. 3. The vehicle driven by the internal combustion engine according to claim 1, wherein said determination value is a ratio of increase of the rotational speed to said valve opening degree when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is more than the determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or less than the determination reference value. 4. The vehicle driven by the internal combustion engine according to claim 1, wherein said determination value is a ratio of increase of a pressure within an intake pipe of said internal combustion engine to said valve opening degree when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 5. The vehicle driven by the internal combustion engine according to claim 1, wherein said determination value is an amount of increase in the pressure within the intake pipe of said internal combustion engine when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 6. The vehicle driven by the internal combustion engine according to claim 1, wherein said determination value is a load value of the internal combustion engine arithmetically operated based on at least one of the rotational speed of said internal combustion engine, the pressure within the intake pipe, an opening degree of a throttle valve and an intake air amount flowing into a cylinder, when the rotational speed of the internal combustion engine reaches said power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 7. The vehicle driven by the internal combustion engine according to claim 1, further comprising safety means for returning the rotational speed of said internal combustion engine less than said power transmission start rotational speed, when said determination means determines that said power transmission device is in the state of performing the power transmission.8. The vehicle driven by the internal combustion engine according to claim 1, further comprising safety means for stopping said internal combustion engine when said determination means determines that said power transmission device is in the state of performing the power transmission.9. A vehicle driven by an internal combustion engine comprising:a power transmission device that includes a transmission having a gear position for cutting power transmission and an automatic clutch mechanism connected at a speed equal to or higher than a predetermined power transmission start rotational speed, and is provided between a crankshaft of said internal combustion engine and drive wheels of said vehicle; a power supply unit that uses a generator driven by said internal combustion engine as a power source to supply electric power to a load; an actuator that operates a valve that adjusts an intake air amount of said internal combustion engine; mode selection means for selecting a control mode of said internal combustion engine between a vehicle driving mode and a generating mode; and a generation control unit having speed control means which controls the intake air amount of said internal combustion engine so as to rotate said internal combustion engine at a rotational speed required for supplying predetermined electric power from said power supply unit to the load when said mode selection means selects the generating mode, wherein said vehicle driven by said internal combustion engine further comprises: rotational speed detection means for detecting the rotational speed of said internal combustion engine; valve control means for on/off determination which controls said actuator so as to gradually increase an opening degree of said valve when said mode selection means selects the generating mode; determination value detection means for detecting, as a determination value, a value that reflects a magnitude of a load applied on said internal combustion engine when the rotational speed of the internal combustion engine reaches said power transmission start rotational speed in a process where said valve control means for on/off determination gradually increases said valve opening degree, and then, when said valve opening degree is further increased by a set angle that is preset within a range so as not to start said vehicle; and determination means for determining that said power transmission device is in a state of cutting power transmission when it is determined from said determination value that the load applied on the internal combustion engine is less than a preset determination reference load, and determining that said power transmission device is in a state of performing the power transmission when it is determined from the determination value that the load applied on said internal combustion engine is equal to or more than said determination reference load. 10. The vehicle driven by the internal combustion engine according to claim 9, wherein said determination value is a rotational speed of the internal combustion engine when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is more than a determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or less than the determination reference value. 11. The vehicle driven by the internal combustion engine according to claim 9, wherein said determination value is a ratio of increase of the rotational speed to said valve opening degree when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is more than the determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or less than the determination reference value. 12. The vehicle driven by the internal combustion engine according to claim 9, wherein said determination value is a ratio of increase of a pressure within an intake pipe of said internal combustion engine to said valve opening degree when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 13. The vehicle driven by the internal combustion engine according to claim 9, wherein said determination value is an amount of increase in the pressure within the intake pipe of said internal combustion engine when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 14. The vehicle driven by the internal combustion engine according to claim 9, wherein said determination value is a load value of the internal combustion engine arithmetically operated based on at least one of the rotational speed of said internal combustion engine, the pressure within the intake pipe, an opening degree of a throttle valve and an intake air amount flowing into a cylinder, when the rotational speed of the internal combustion engine reaches said power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 15. The vehicle driven by the internal combustion engine according to claim 9, further comprising safety means for returning the rotational speed of said internal combustion engine less than said power transmission start rotational speed, when said determination means determines that said power transmission device is in the state of performing the power transmission.16. The vehicle driven by the internal combustion engine according to claim 9, further comprising safety means for stopping said internal combustion engine when said determination means determines that said power transmission device is in the state of performing the power transmission.17. The vehicle driven by the internal combustion engine according to claim 9, further comprising alarm raising means for raising an alarm of abnormality in said power transmission device when said determination means determines that said power transmission device is in the state of performing the power transmission, with said mode selection means selecting the generating mode.18. The vehicle driven by the internal combustion engine according to claim 9, further comprising:a gear position sensor that detects a gear position of said power transmission device, wherein said speed control means is comprised so as to control to rotate said internal combustion engine at the rotational speed required for supplying the predetermined electric power from said power supply unit to the load only when said gear position sensor detects that said power transmission device is in the state of cutting the power transmission; and alarm raising means for raising an alarm of abnormality in said power transmission device when said determination means determines that said power transmission device is in the state of performing the power transmission, with said gear position sensor detecting that said power transmission device is in the state of cutting the power transmission. 19. An on/off determination device of a power transmission device for a vehicle driven by an internal combustion engine, which determines whether said power transmission device of said vehicle is in a state of performing power transmission, or a state of cutting the power transmission,said power transmission device being provided between a crankshaft of said internal combustion engine and drive wheels of said vehicle, and enters a state of transmitting power from said internal combustion engine to said drive wheels when a rotational speed of said internal combustion engine reaches a predetermined power transmission start rotational speed or higher, said vehicle driven by said internal combustion engine comprising: a power supply unit that uses a generator driven by said internal combustion engine as a power source to supply electric power to a load when said vehicle is stopped, wherein said vehicle driven by said internal combustion engine further comprises: rotational speed detection means for detecting the rotational speed of said internal combustion engine; valve control means for on/off determination which controls means for operating a valve that adjusts an intake air amount of said internal combustion engine so as to gradually increase an opening degree of said valve when an instruction to start said generator is provided; determination value detection means for detecting, as a determination value, a value that reflects a magnitude of a load applied on said internal combustion engine when the rotational speed of the internal combustion engine reaches said power transmission start rotational speed in a process where said valve control means for on/off determination gradually increases said valve opening degree, and then, when said valve opening degree is further increased by a set angle that is preset within a range so as not to start said vehicle; and determination means for determining that said power transmission device is in a state of cutting power transmission when it is determined from said determination value that the load applied on the internal combustion engine is less than a preset determination reference load, and determining that said power transmission device is in a state of performing the power transmission when it is determined from the determination value that the load applied on said internal combustion engine is equal to or more than said determination reference load. 20. The on/off determination device of the power transmission device for the vehicle driven by the internal combustion engine according to claim 19, wherein said determination value is a rotational speed of the internal combustion engine when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is more than a determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or less than the determination reference value. 21. The on/off determination device of the power transmission device for the vehicle driven by the internal combustion engine according to claim 19, wherein said determination value is a ratio of increase of the rotational speed to said valve opening degree when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is more than the determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or less than the determination reference value. 22. The on/off determination device of the power transmission device for the vehicle driven by the internal combustion engine according to claim 19, wherein said determination value is a ratio of increase of a pressure within an intake pipe of said internal combustion engine to said valve opening degree when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 23. The on/off determination device of the power transmission device for the vehicle driven by the internal combustion engine according to claim 19, wherein said determination value is an amount of increase in the pressure within the intake pipe of said internal combustion engine when the rotational speed of the internal combustion engine reaches the power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 24. The on/off determination device of the power transmission device for the vehicle driven by the internal combustion engine according to claim 19, wherein said determination value is a load value of the internal combustion engine arithmetically operated based on at least one of the rotational speed of said internal combustion engine, the pressure within the intake pipe, an opening degree of a throttle valve and an intake air amount flowing into a cylinder, when the rotational speed of the internal combustion engine reaches said power transmission start rotational speed in the process where said valve opening degree is gradually increased, and then, when said valve opening degree is further increased by said set angle, andsaid determination means determines that said power transmission device is in the state of cutting the power transmission when said determination value is less than the preset determination reference value, and determines that said power transmission device is in the state of performing the power transmission when said determination value is equal to or more than said determination reference value. 25. An on/off determination device of a power transmission device for a vehicle driven by an internal combustion engine, which determines whether said power transmission device of said vehicle driven by said internal combustion engine is in a state of performing power transmission, or a state of cutting the power transmission,said power transmission device including a transmission having a gear position for cutting power transmission and an automatic clutch mechanism connected at a speed equal to or higher than a predetermined power transmission start rotational speed, and is provided between a crankshaft of said internal combustion engine and drive wheels of said vehicle; said vehicle driven by said internal combustion engine comprising: a power supply unit that uses a generator driven by said internal combustion engine as a power source to supply electric power to a load; an actuator that operates a valve that adjusts an intake air amount of said internal combustion engine; mode selection means for selecting a control mode of said internal combustion engine between a vehicle driving mode and a generating mode; and a generation control unit having speed control means which controls the intake air amount of said internal combustion engine so as to rotate said internal combustion engine at a rotational speed required for supplying predetermined electric power from said power supply unit to the load when said mode selection means selects the generating mode, wherein said vehicle driven by said internal combustion engine further comprises: rotational speed detection means for detecting the rotational speed of said internal combustion engine; valve control means for on/off determination which controls said actuator so as to gradually increase an opening degree of said valve when said mode selection means selects the generating mode; determination value detection means for detecting, as a determination value, a value that reflects a magnitude of a load applied on said internal combustion engine when the rotational speed of the internal combustion engine reaches said power transmission start rotational speed in a process where said valve control means for on/off determination gradually increases said valve opening degree, and then, when said valve opening degree is further increased by a set angle that is preset within a range so as not to start said vehicle; and determination means for determining that said power transmission device is in a state of cutting power transmission when it is determined from said determination value that the load applied on the internal combustion engine is less than a preset determination reference load, and determining that said power transmission device is in a state of performing the power transmission when it is determined from the determination value that the load applied on said internal combustion engine is equal to or more than said determination reference load.
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