SE541121C2 - A cooler arrangement of a hybrid vehicle powered by a supercharged combustion engine and an electric power unit - Google Patents
A cooler arrangement of a hybrid vehicle powered by a supercharged combustion engine and an electric power unitInfo
- Publication number
- SE541121C2 SE541121C2 SE1550181A SE1550181A SE541121C2 SE 541121 C2 SE541121 C2 SE 541121C2 SE 1550181 A SE1550181 A SE 1550181A SE 1550181 A SE1550181 A SE 1550181A SE 541121 C2 SE541121 C2 SE 541121C2
- Authority
- SE
- Sweden
- Prior art keywords
- cooler
- radiator
- energy storage
- coolant
- power electronics
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The present invention relates to a eooler arrangement of a hybrid vehicle (1) powered by a supercharged combustion engine (5) and an electric power unit (6). The cooler arrangement is arranged at a front portion of the vehi cle. T he cooler arrangement comprises a radiator (10) of a first cooling system which cools the combustion engine (5), a radiator fan (18) creating an air flow through the radiator (10), a charged air cooler (11) arranged in a position upstream of the radiator (10) with respec t to the intended air flow direction through the radiator (10) and a cooler unit (12, 13, 21) of a second cooling system which cools an electric energy storage (8) and the power electronics (9) of the electric power unit (6). The cooler unit (12, 13, 21) comprises a cool er (12) arranged in a position upstream of the radiator (10) with respect to the intended air flow direction through the radiator (10) and at least one fan (13) configured to create an air flow through the cooler (12).
Description
A cooler arrangement of a hybrid vehicle powered by a supercharged combustion engine and an electric power unit BACKGROUND OF THE INVENTION AND PRIOR ART The present invention relates to a cooler arrangement of a hybrid vehicle powered by a supercharged combustion engine and an electric power unit according to the preamble of claim 1.
The amount of air which can be supplied to a supercharged combustion engine depends on the pressure of the air but also on the temperature of the air. Supplying as large an amount of air as possible to the combustion engine therefore entails cooling of the charged air in at least one charge air cooler before it is led to the combustion engine. The charged air is usually cooled in a charge air cooler situated at a front portion of a vehicle where it is cooled by air at ambient temperature. In this case, the compressed air can be cooled to a temperature slightly above ambient temperature.
The electric power unit may comprises an electric machine which alternately works as motor and generator, an electric energy storage for storing of electrical energy and the power electronics for controlling the flow of electrical energy between the electrical energy store and the electric machine. The power electronics may include a DC converter and inverter for conducting electrical energy between the electrical energy storage and the electric machine. The electrical energy storage and the power electronics are heated during operation. In order to provide a well working electrical energy storage and power electronics, they should not be heated to a too high temperature. The electrical energy storage should, for example, not be heated to a temperature above a maximum temperature, which for a certain type of electrical energy storage may be in the order of 40 ° C. The power electronics can be heated to a somewhat higher temperature. Thus, the electrical energy storage and the power electronics are to be cooled during operation. They may be cooled by a coolant circulating in a cooling system.
The electrical energy storage and the power electronics are to be cooled to a lower temperature than the combustion engine. Thus, these components are to be cooled by a coolant of a lower temperature than the coolant in the cooling system cooling the combustion engine. It is known to arrange the cooling system in a box-like container together with the electrical energy storage and the power electronics. The box-like container may be mounted on a side frame of the vehicle. In this case, it is difficult to accomplish a favorable mounting position of a cooler of the cooling system where the coolant obtains an efficiency cooling.
SUMMARY OF THE INVENTION The object of the present invention is to provide a cooler arrangement of a hybrid vehicle powered by a supercharged combustion engine and an electric power unit, which provides an efficient and well-controlled cooling of the coolant cooling the electric energy storage and the power electronics of the electric power unit.
The above mentioned object is achieved by the arrangement according to the characterizing part of claim 1. A hybrid vehicle powered by a supercharged combustion engine and an electric power unit is usually equipped with a smaller supercharged combustion engine than a vehicle of a corresponding size solely powered by a supercharged combustion engine. The required amount of charge air is related to the size of the combustion engine. Consequently, a hybrid vehicle of the above mentioned kind requires a smaller amount of charge air and thus a smaller charge air cooler than a vehicle of a corresponding size solely powered by a supercharged combustion engine. The use of a smaller charge air cooler exposes a space in a position in front of the radiator of the ordinary cooling system cooling the combustion engine.
The heat transfer in a cooler between the coolant and the cooling air depends on the temperature of the cooling air and the air flow through the cooler. In this case, the coolant is cooled in a cooler arranged at a front portion of the vehicle in a position upstream of the radiator. In such a position, the cooler will be flown through by cooling air of a low temperature. In this case, the air flow through the cooler is created by ram air, the radiator fan and the fan of the cooling unit. Consequently, it is not difficult to achieve a large air flow through the cooler during substantially operational conditions. By means of the fan, it is possible to regulate the air flow through the cooler to a desired value with a high precision. The radiator fan is usually disengaged during operational conditions when the coolant cooling of the ordinary cooling system has a temperature below a set temperature. During such operational conditions the ram air and the fan create a required air flow through the cooler.
According to an embodiment of the invention, the cooler of the cooling unit and the charge air cooler are substantially plate shaped and arranged in a common vertical plane. In this case the cooler of the cooling unit and the charge air cooler may be arranged side by side in front of the radiator. It is often appropriate to design the charge air cooler with the same width as the radiator. In this case, the cooler of the cooling unit may be arranged in a position above the charge air cooler in said common vertical plane. Alternatively, the cooler of the cooling unit may be arranged in a position below the charge air cooler in said common vertical plane.
According to an embodiment of the invention, the fan may be arranged in an upstream position of the cooler of the cooling unit. Usually, the space between the cooler and the radiator of the ordinary cooling system is not large enough to accommodate the fan. In this case, the fan is to be mounted in front of the cooler. In case it is enough space between the cooler and the radiator to accommodate the fan, it is of course possible to arrange the fan in this space.
According to an embodiment of the invention, the fan may be driven by an electric motor controlled by a control unit. It is possible to vary the speed of the fan in a step less manner by the electric motor and the cooling efficiency of the coolant in the cooler. The control unit may be configured to control the operation of the fan with information about a parameter having a value related to the temperature of the electrical energy storage and the power electronics. Feedback information of the temperature of the electrical energy storage and the power electronics is a precondition for controlling the temperature of the electrical energy storage and the power electronics with a high precision. The control unit may be configured to control the fan with information from a sensor sensing the temperature of the coolant in a position situated substantially immediately downstream of the electrical energy storage and/or the power electronics. When the coolant has cooled the electrical energy storage and the power electronics, it may have a somewhat lower temperature than the temperature of the electrical energy storage and the power electronics. To sense the temperature of the coolant with a sensor is a simple way to estimate the temperature of the electrical energy storage and the power electronics.
According to an embodiment of the invention, the second cooling system may comprise coolant lines in which the electric energy storage and the power electronics are arranged in parallel lines or in series. Usually, the power electronics can be heated to a higher temperature than the electrical energy storage. In this case, it is suitable that the electric energy storage and the power electronics are arranged in series such that the coolant flows through the electric energy storage and then through the power electronics. Alternatively, coolant with the same low temperature flows through the electric energy storage and the power electronics in parallel lines.
According to an embodiment of the invention, the vehicle comprises an AC system with a circulating refrigerant which is compressed by a compressor and cooled in a condenser. The most vehicle comprises an AC system cooling a cab of the vehicle. The coolant cooling the electric energy storage and the power electronics may also be used to cool the refrigerant in the condenser. In this case, the second cooling system may comprises a valve member by which it is possible to distribute a part of the coolant flow in the cooling system to the condenser and a remaining part to the electrical energy storage and the power electronics. The valve member may be controlled by a control unit.
According to an embodiment of the invention, the cooling unit comprises a condenser of the AC system where the refrigerant is cooled by air. In this case, the fan circulates air through a cooler and the condenser at the front portion of the vehicle. The condenser may be arranged in an upstream position of the cooler in the cooling unit. The refrigerant in the condenser is cooled by air of a somewhat lower temperature than the coolant in the cooler. Alternatively, the condenser may be arranged in a downstream position of the cooler in the cooling unit.
According to an embodiment of the invention, the control unit is configured to control the electric motor driving the fan and the electric motor driving the compressor in a manner such that the sum of the electric power supplied to the electric motors is minimized at at least one specific temperature of the coolant. An increased power supply to the fan results in a higher speed of the fan. As a consequence, the coolant is cooled to a lower temperature in the cooler and the refrigerant is cooled to a lower condensation temperature in the condenser. A lower condensation temperature increases the efficiency of the AC system. The control unit may have access to stored information of predetermined values of the power supply to the electric motors driving the fan and the compressor at different operational condition at which it is possible to maintain a temperature of the coolant with a minimum supply of power to the electric motors. Alternatively, the control unit may calculate such values of the power supply to the electric motors driving the fan and the compressor.
According to an embodiment of the invention, the electric energy storage and the power electronics is arranged in a box-like structure mounted on a longitudinal beam of the vehicle. In this case, the coolant is conducted in coolant lines having an extension between the box-like structure and the front portion of the vehicle.
Alternatively, the electric energy storage and the power electronics may be arranged on the roof of the vehicle.
BRIEF DESCRIPTION OF THE DRAWINGS In the following preferred embodiments of the invention is described, as examples, with reference to the attached drawings, in which: Fig. 1 shows a hybrid vehicle comprising a cooler arrangement according to the invention, Fig. 2 shows the cooler arrangement more in detail and Fig. 3 shows an alternative embodiment of the cooler arrangement.
DETAIFED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION Fig. 1 shows a heavy vehicle 1 which is provided with a driving cab 2 and a loading space 3. The vehicle 1 comprises a frame structure including two a longitudinal beams 4 arranged in parallel. The vehicle 1 is a hybrid vehicle and it is driven by a supercharged combustion engine 5 and an electric machine 6. The combustion engine 5 may be a diesel engine. The electrical machine 6 operates as a generator during operating times when the vehicle 1 is braked. The electrical machine 6 is able to provide a braking effect up to a certain level. At higher levels a complementary braking effect is applied by the ordinary brakes of the vehicle. A box like container 7 is fixedly arranged on a side surface of one of the longitudinal beams 4. An electric energy storage 8 and power electronics 9 that controls the flow of electrical power between the electrical energy storage 8 and the electric machine 6 is disposed in the container 7. The vehicle 1 comprises at a front portion a radiator 10 cooling a coolant circulated in a first ordinary cooling system cooling the combustion engine 5. A charge air cooler 11 is arranged in a position in front of the radiator 10 in which charged air is cooled before it is directed to the supercharged combustion engine 5. A second cooling system with a circulating coolant is used to cool the electrical energy storage 8 and the power electronics 9. The second cooling system comprises a cooling unit arranged at a front portion of the vehicle 1 in front of the radiator 10 The cooling unit comprises a cooler 12 at least one fan 13 situated in an upstream position of the radiator 10 and the cooler 12 with respect to the intended air flow direction through the radiator 10 and the cooler 12.
Fig. 2 shows a part of a power train of the vehicle 1. The power train comprises the combustion engine 5, the electric machine 6, a gear box 14 and an outlet shaft 15. The first ordinary cooling system comprises a pump 16 arranged in an inlet line to the combustion engine 5. The pump 16 circulates the coolant through the combustion engine 5. The coolant leaves the combustion engine 5 via an engine outlet line. The engine outlet line conducts the coolant to a thermostat 17. In case the coolant has a lower temperature than a regulating temperature of the thermostat 17, the coolant is directed back to the pump 6 via a bypass line. In case the coolant has a higher temperature than the regulating temperature of the thermostat 17, the coolant is directed to the radiator 10 situated in the front portion of the vehicle 1. When the coolant has circulated through the radiator 10, it is directed, via a return line, back to the engine inlet line and the pump 16. A radiator fan 18 driven by the combustion engine 5 provides a cooling air flow through the radiator 10.
The coolant in the second cooling system is circulated by an electric driven pump 19. The pump 19 receives coolant from the cooler 12. In this case, the cooling unit is equipped with two electric driven fans 13. Since the cooler 12 is arranged in a position upstream of the radiator 10, the coolant in the second cooling system is cooled by air having a lower temperature than the coolant in the radiator 10. The second cooling system comprises a first branched line 20 in which the coolant is directed to a condenser 21 in an AC system. A three way valve 22 is arranged at an inlet of the first branched line 20. The coolant cools a vapour refrigerant in the condenser 21 to a temperature at which the refrigerant condenses.
The second cooling system comprises a second branched line 23 having cooling passages extending through the electrical energy storage 8 and a third branched line 24 having cooling passages extending through the power electronics 9. A temperature sensor 25 senses the temperature of the coolant in a position situated downstream of the electrical energy storage 8 and the power electronics 9. A control unit 26 receives information from the temperature sensor 25 about the temperature of the coolant. The control unit 26 also controls the three way valve 22 and electric motors 27 driving the fans 13. The coolant leaving the condenser 21, the electric energy storage 8 and the power electronics 9 is directed back to the cooler 12 where the coolant is cooled by a cooling air flow of ambient temperature.
Thus, the refrigerant is condensed in the condenser 21. The condensation temperature is depending on the temperature of the coolant and the coolant flow and to the condenser 21. An outlet line of the condenser comprises a three way valve 28. By means of the three way valve 28 is it is possible to direct the liquid refrigerant, via a first expansion valve 29, to a first evaporator 30 in the drivers cab. The first expansion valve 29 throttles the liquid refrigerant to a lower pressure and a lower temperature before it enters the first evaporator 30. A fan in the drivers cab forces air through the first evaporator 30 such that the air is cooled by the refrigerant in the first evaporator 30. The refrigerant is heated by the air to a temperature at which it vaporizes. The vapour refrigerant in the first evaporator 30 is sucked to a compressor 31. The compressor 31 is driven by an electric motor 32. By means of the three way valve 28, it is alternatively or in combination possible to direct the liquid refrigerant, via a second expansion valve 33, to a second evaporator 34. Coolant from the second cooling system circulates through the second evaporator 34. The coolant in the second cooling system may be cooled in a second step in the second evaporator 34. The refrigerant is heated by the coolant to a temperature at which it vaporizes. The vapour refrigerant in the second evaporator 30 is sucked to the compressor 31.The compressor 3 1 compresses the vapour refrigerant such that it obtains a higher pressure and a higher temperature. The refrigerant is usually superheated when it leaves the compressor 31 and enters the condenser 21.
The combustion engine 5 comprises an exhaust line 35. A turbine 36 of a turbo aggregate is arranged in the exhaust line 35. The turbo aggregate comprises a compressor 37 driven by the turbine 36 and the exhaust gases in the exhaust line 35. The compressor 37 is arranged in an air inlet line 38 delivering charged air to the supercharged combustion engine 5. The charged air is cooled in the charge air cooler 1 1 before it is directed into the combustion engine 5.
Since the vehicle 1 is powered by a supercharged combustion engine 5 and an electric power unit 6, it is equipped with a smaller supercharged combustion engine 5 than a vehicle of a corresponding size solely powered by a supercharged combustion engine 5. A smaller supercharged combustion engine 5 requires a smaller amount of charge air and thus a smaller charge air cooler 11 than a vehicle of a corresponding size solely powered by a supercharged combustion engine. The use of a smaller charge air cooler 1 1 exposes a free space in a position in front of the radiator 10 of the ordinary cooling system cooling the combustion engine. A cooling unit in the form of a cooler 12 and fans 13 have been arranged in this space. In this position, the cooler 12 and the fan 13 provides an effective cooling of the coolant of the second cooling system, which cools the electrical energy storage 8 and the power electronics 9. By means of the fan 13, it is possible to regulate the air flow through the cooler 12 to a desired value with a high precision. During operational conditions when the radiator fan 18 is disengaged, the ram air and the fans 13 create the required air flow through the cooler 12.
During operation of the vehicle 1, control unit 26 receives information from the temperature sensor 25 about the temperature of the coolant after it has cooled the electrical energy storage 8 and the power electronics 9. This temperature is related to the temperature of the electrical energy storage 8 and the power electronics 9. The temperature of the electrical energy storage 8 and the power electronics 9 may be somewhat degrees higher than the temperature of the coolant. Thus, it is possible to estimate the temperature of the electrical energy storage 8 and the power electronics 9 in view of information of the temperature of the coolant in this position.
In case the control unit 26 receives information from the temperature sensor 25 indicating that the temperature of the electrical energy storage 8 and the power electronics 9 is too high, it may increase the power supply to the electric motors 27 such that the fans 13 are driven at a higher speed. As a consequence, the coolant leaving the cooler 12 obtains a lower temperature and the cooling of the electrical energy storage 8 and the power electronics 9 becomes more effective. At the same time, the coolant of the lower temperature provides a cooling of the refrigerant to a lower condensation temperature in the condenser 21. The efficiency of the AC system increases and the required power supply to the compressor 30 decreases. Alternatively or in combination, the control unit 26 may control the three way valve 22 such that it directs a higher coolant flow to the electrical energy storage 8 and the power electronics 9. The condenser 21 receives a decreased coolant flow. In this case, the efficiency of the AC system decreases and the compressor 30 requires a larger power supply.
Furthermore, the control unit 26 has the alternative to use the AC system to cool the coolant in the second cooling system in a second step before it cools the electrical energy storage 8 and the power electronics 9. In this case, the control unit 26 controls the three way valve 28 such that at least a part of the circulating refrigerant in the AC system is directed to second evaporator 34. It may be performed when the electrical energy storage 8 and the power electronics 9 are heavily loaded. Consequently, the coolant may be cooled by means of air forced through the cooler 12 by the fan 13 or/and the AC system in the second evaporator 34. The control unit 26 has access to stored information about determined values of the power supply to the electric motors 27 driving the fans 13 and the electric motor 31 driving the compressor 30 at which the sum of the power supply is minimized at different operational conditions. In view of that information, it is possible to maintain a desired temperature level of the coolant and the electrical energy storage 8 and the power electronics 9 with a minimum supply of power in the form of electric energy to the electric motors 27, 30.
Fig 3 show an alternative embodiment of the cooler arrangement. In this case, the condenser 21 of the AC system is air cooled. The condenser 21 is arranged in the cooling unit at the front portion of the vehicle 1. The condenser 21 is arranged in an upstream position of the cooler 12 and in a downstream position of the fans 13. The fans 13 force an air flow through the condenser 21 and the cooler 12. Thus, the refrigerant in the condenser 21 is cooled by air of a somewhat lower temperature than the temperature of the air cooling the coolant in the cooler 12. In this case, the coolant in the second cooling system first cools the electrical energy storage 8 and then the power electronics 9. Thereby, the electrical energy storage 8 is cooled to a somewhat lower temperature than the power electronics 9.
The invention is not restricted to the described embodiment but may be varied freely within the scope of the claims.
Claims (9)
1. A cooler arrangement of a hybrid vehicle (1) powered by a supercharged combustion engine (5) and an electric power unit (6), wherein the cooler arrangement is arranged at a front portion of the vehicle, and wherein the cooler arrangement comprises a radiator (10) of a first cooling system which cools the combustion engine (5), a radiator fan (18) creating an air flow through the radiator (10), a charged air cooler (11) arranged in a position upstream of the radiator (10) with respect to the intended air flow direction through the radiator (10), and a cooling unit (12, 13, 21) of a second cooling system which cools an electric energy storage (8) and the power electronics (9) of the electric power unit (6), wherein the cooling unit comprises a cooler (12) arranged in a position upstream of the radiator (10) with respect to the intended air flow direction through the radiator (10). characterized in that the cooler (12) of the cooling unit and the charge air cooler (11) are substantially plate shaped and arranged in a common vertical plane and that the cooling unit comprises at least one fan (13), which is arranged in an upstream position of the cooler (12) of the cooling unit and configured to create an air flow through the cooler (12).
2. A cooler arrangement according claim 1, characterized in that the cooler (12) of the cooling unit is arranged in a position above the charge air cooler (11) or in a position below the charge air cooler (11) in said common vertical plane.
3. A cooler arrangement according to any one of the preceding claims, characterized in that the fan (13) is driven by an electric motor (27) controlled by a control unit (26).
4. A cooler arrangement according claim 3, characterized in that the control unit (26) is configured to control the operation of the fan (13) with information about a parameter having a value related to the temperature of the electrical energy storage (8) and/or the power electronics (9).
5. A cooler arrangement according to claim 4, characterized in that the control unit (26) is configured to control the fan (13) with information from a sensor (25) sensing the temperature of a coolant in the second cooling system in a position situated substantially immediately downstream of the electrical energy storage (8) and/or the power electronics (9).
6. A cooler arrangement according to any one of the preceding claims, characterized in that the second cooling system comprises coolant lines in which the electric energy storage (8) and the power electronics (9) are arranged in parallel lines or in series.
7. A cooler arrangement according to any one of the preceding claims, characterized in that the cooling unit comprises a condenser (21) of an AC system where the refrigerant is cooled by air.
8. A cooler arrangement according to claim 7, characterized in that the condenser (21) is arranged in an upstream position of the cooler (12) of the cooling unit.
9. A cooler arrangement according to any one of the preceding claims, characterized in the electric energy storage (8) and the power electronics (9) is arranged in a box-like structure (7) mounted on a longitudinal beam of the vehicle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1550181A SE541121C2 (en) | 2015-02-18 | 2015-02-18 | A cooler arrangement of a hybrid vehicle powered by a supercharged combustion engine and an electric power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1550181A SE541121C2 (en) | 2015-02-18 | 2015-02-18 | A cooler arrangement of a hybrid vehicle powered by a supercharged combustion engine and an electric power unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE1550181A1 SE1550181A1 (en) | 2016-08-19 |
| SE541121C2 true SE541121C2 (en) | 2019-04-09 |
Family
ID=56896861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1550181A SE541121C2 (en) | 2015-02-18 | 2015-02-18 | A cooler arrangement of a hybrid vehicle powered by a supercharged combustion engine and an electric power unit |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE541121C2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006144703A (en) * | 2004-11-22 | 2006-06-08 | Toyota Motor Corp | Hybrid vehicle |
| WO2008066476A1 (en) * | 2006-11-29 | 2008-06-05 | Scania Cv Ab | Cooler arrangement at a vehicle |
-
2015
- 2015-02-18 SE SE1550181A patent/SE541121C2/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006144703A (en) * | 2004-11-22 | 2006-06-08 | Toyota Motor Corp | Hybrid vehicle |
| WO2008066476A1 (en) * | 2006-11-29 | 2008-06-05 | Scania Cv Ab | Cooler arrangement at a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| SE1550181A1 (en) | 2016-08-19 |
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| Date | Code | Title | Description |
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| NUG | Patent has lapsed |