IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0499780
(2002-12-04)
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국제출원번호 |
PCT/FR02/004184
(2002-12-04)
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§371/§102 date |
20040621
(20040621)
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국제공개번호 |
WO03/053727
(2003-07-03)
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발명자
/ 주소 |
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
3 인용 특허 :
0 |
초록
▼
The invention proposes an air conditioning installation furnished with an injection computer (42), with an air conditioning apparatus and with an electronic control device (401). The installation furthermore comprises measurement facilities making it possible to establish values relating to the temp
The invention proposes an air conditioning installation furnished with an injection computer (42), with an air conditioning apparatus and with an electronic control device (401). The installation furthermore comprises measurement facilities making it possible to establish values relating to the temperature of the external air stream at the inlet of the condenser, to the pressure at the outlet of the compressor (123), and to the pressure at the inlet of the compressor (122). The electronic control device (401) implements the solving of a linear equation, relating the mass flow rate of the refrigerant to the values measured by the measurement facilities so as to calculate an estimate of a quantity relating to the refrigerant. On the basis of this quantity, the electronic device can estimate the power absorbed by the compressor (14).
대표청구항
▼
The invention claimed is: 1. An air conditioning installation for a vehicle with an engine, the installation comprising: an electric fan assembly (15); a first measurement facility (24); a second measurement facility (23); an electronic control device (401); an injection computer (42) that transmit
The invention claimed is: 1. An air conditioning installation for a vehicle with an engine, the installation comprising: an electric fan assembly (15); a first measurement facility (24); a second measurement facility (23); an electronic control device (401); an injection computer (42) that transmits information items (33); and a refrigerant (m) containing closed circuit comprising: a compressor (14)having an inlet and outlet; a condenser (11) having an inlet and outlet; a relief valve (12); a refrigerant that flows in the circuit having a certain mass; an associated mass flow rate when the refrigerant flows in the circuit; and an evaporator (13), wherein the first and second measurement facility measure values, relating to temperature or pressure at the inlet or outlet of the compressor or the condenser; and wherein the electronic control device (401) solves a linear equation that relates the mass flow rate of the refrigerant (m) to the values measured by the first and the second measurement facility and calculates an estimate of a quantity relating to the refrigerant, and further estimates the power absorbed by the compressor (14) based on the quantity relating to the refrigerant, of the measurements delivered by the measurement facilities and of the information items (33) transmitted by the injection computer ( 42). 2. An air conditioning installation, as in claim 1, further comprising an inlet of the condenser for an external air stream, where the temperature and pressure are measurable, an outlet of the compressor where pressures are measurable, and further comprising a third measurement facility, wherein the condenser receives a stream of air passing through the electric fan assembly (15), and the electronic control device (401) interacts with the refrigerant containing closed circuit (10) and the injection computer ( 42), and the measurement facilities are sensors that measure: a first value relating to the temperature of the external air stream at the inlet of the condenser (Taek), a second value relating to the pressure at the outlet of the compressor, termed the high pressure (HP), and; a third value relating to the pressure at the inlet of the compressor, termed the low pressure (LP). 3. The air conditioning installation as in claim 2, wherein the compressor is a mechanical compressor and the quantity calculated by the electronic control device is the mass flow rate of the refrigerant (m) . 4. The air conditioning installation as in claim 2, wherein the compressor is an electric compressor and the quantity calculated by the electronic control device is the high pressure (HP) of the refrigerant. 5. The air conditioning installation as in claim 2, wherein the first measurement facility is a probe (24), placed between the electric fan assembly (15) and the condenser (11 ), which delivers a measurement of the value of the temperature of the external air stream at the inlet of the condenser (Taek). 6. The air conditioning installation as in claim 5, wherein the first measurement facility is a probe linked to the injection computer (42) which delivers a measurement of the value of the temperature of the external air stream (Text). 7. The air conditioning installation as in claim 6, wherein the electronic control device (401) is able to calculate an estimate of the value of the temperature of the external air stream at the inlet of the condenser (Taek), on the basis of the value of the temperature of the external air (Text) and of the value of the forward speed (Va) of the vehicle that are delivered by the injection computer (42). 8. The air conditioning installation as in claim 2, wherein the second measurement facility is a probe (23) placed at the inlet of the condenser (11) directly within the refrigerant, which delivers a measurement of the value of the condensation temperature (T k). 9. The air conditioning installation as in claim 8, wherein the electronic control device (401) is able to calculate the value of the high pressure (HP) on the basis of the value of the condensation temperature (Tk) delivered by the second measurement facility. 10. The air conditioning installation as in claim 2, wherein the second measurement facility is a sensor (123), placed between the outlet of the compressor (14) and the inlet of the condenser (11), which directly measures the instantaneous value of the high pressure (HP). 11. The air conditioning installation as in claim 2, wherein the second measurement facility is a sensor (123), placed between the outlet of the condenser (11) and the inlet of the relief valve (12), intended to directly measure the instantaneous value of the high pressure (HP). 12. The air conditioning installation as in claim 10, wherein the electronic control device (401) is able to calculate the value of the condensation temperature (Tk), on the basis of the instantaneous value of the high pressure (HP) delivered by the second measurement facility. 13. The air conditioning installation as in claim 11, wherein the electronic control device (401) is able to calculate the value of the condensation temperature (Tk), on the basis of the instantaneous value of the high pressure (HP) delivered by the second measurement facility. 14. The air conditioning installation as in claim 2, further comprising a third measurement facility (122) and vanes in the evaporator (13), wherein the third measurement facility is a probe (122), placed in the vanes of the evaporator (13), which delivers a measurement of the instantaneous value of the evaporation temperature. 15. The air conditioning installation as in claim 2, wherein the third measurement facility is a probe (122), placed within the refrigerant, which delivers a measurement of the instantaneous value of the evaporation temperature. 16. The air conditioning installation as in claim 14, wherein the electronic control device is able to calculate the value of the low pressure (LP) on the basis of the instantaneous value of the evaporation temperature delivered by the second measurement facility. 17. The air conditioning installation as in claim 15, wherein the electronic control device is able to calculate the value of the low pressure (LP) on the basis of the instantaneous value of the evaporation temperature delivered by the second measurement facility. 18. The air conditioning installation as in claim 2, wherein the third measurement facility is a sensor (22), placed between the evaporator (13) and the compressor (14), which directly delivers a measurement of the instantaneous value of the low pressure (LP) . 19. The air conditioning installation as in claim 3, wherein the first measurement facility is a probe (24), placed between the electric fan assembly (15) and the condenser (11 ), which delivers a measurement of the value of the temperature of the external air stream at the inlet of the condenser (Taek), and the electronic control device (401) is able to calculate an estimate of the mass flow rate of the refrigerant on the basis of the values measured by the first and the second measurement facility and of two information items relating to the operation of the vehicle, that are transmitted by the injection computer (42). 20. The air conditioning installation as in claim 19, wherein the information items relating to the operation of the vehicle are related to the forward speed of the vehicle and to the voltage of the electric fan assembly. 21. The air conditioning installation as in claim 19, wherein the electronic control device (401) is able to calculate the power absorbed by the compressor on the basis of the calculated estimate of the mass flow rate, of the values measured by the second and the third measurement facility, and of information items relating to the operation of the vehicle, that are delivered by the injection computer (42). 22. The air conditioning installation as in claim 21, wherein the information items relating to the operation of the vehicle are related to the speed of rotation of the compressor. 23. The air conditioning installation as in claim 4, wherein the first measurement facility is a probe (24), placed between the electric fan assembly (15) and the condenser (11 ), which delivers a measurement of the value of the temperature of the external air stream at the inlet of the condenser (Taek), and the electronic control device (401) is able to calculate an estimate of the high pressure (HP) of the refrigerant on the basis of the value measured by the first measurement facility, of the value of the mass flow rate of the refrigerant and of two information items relating to the operation of the vehicle, that are transmitted by the injection computer (42). 24. The air conditioning installation as in claim 23, wherein the information items relating to the operation of the vehicle are related to the forward speed of the vehicle and to the voltage of the electric fan assembly. 25. The air conditioning, installation as in claim 23, wherein the electronic control device (401) is able to calculate the power absorbed by the compressor on the basis of the estimate of the high pressure (HP) calculated, of the value measured by the third measurement facility, and of information items relating to the operation of the vehicle, that are delivered by the injection computer (42). 26. The air conditioning installation as in claim 25, wherein the information items relating to the operation of the vehicle are related to the speed of rotation of the compressor. 27. The air conditioning installation as in claim 23, wherein the electronic control device is capable, for a given starting state, of iteratively calculating values of the power absorbed by the compressor, on the basis of values of the high pressure corresponding to small chosen variations of the speed of rotation so as to estimate the maximum speed of rotation. 28. The air conditioning installation as in claim 27, wherein the values of the high pressure are calculated on the basis of the successive values of the mass flow rate of the refrigerant, which values are calculated as a function of the small variations of the speed of rotation. 29. The air conditioning installation as in claim 28, wherein the starting state comprises the values of the high pressure (HP) and of the low pressure (LP), measured by the second and the third measurement facility, corresponding to an initial speed of rotation.
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