CN105508020A - Common cooling system for engine and braking resistor - Google Patents
Common cooling system for engine and braking resistor Download PDFInfo
- Publication number
- CN105508020A CN105508020A CN201610069580.9A CN201610069580A CN105508020A CN 105508020 A CN105508020 A CN 105508020A CN 201610069580 A CN201610069580 A CN 201610069580A CN 105508020 A CN105508020 A CN 105508020A
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- China
- Prior art keywords
- braking resistor
- cooling
- motor
- braking
- radiator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00
- F01P9/04—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00 by simultaneous or alternative use of direct air-cooling and liquid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2050/00—Applications
- F01P2050/24—Hybrid vehicles
Abstract
The invention discloses a common cooling system for an engine and a braking resistor, which comprises a radiator and a cooling fan, wherein the radiator is respectively connected with a cooling circuit of the engine and a cooling circuit of the braking resistor; the cooling fan is used for cooling the radiator; and a coolant of the engine sequentially flows towards the radiator through the radiator, a cooling channel of the braking resistor and a water channel of the engine. By utilizing the characteristic that the engine and braking resistor basically work alternately under output power, the water cooling system of the braking resistor and the cooling system of the engine are shared, thereby solving the problem in heat dissipation of the braking resistor and engine, and further lowering the volume and cost of the overall system.
Description
Technical field
The present invention relates to technical field of new energy, be specifically related to the shared cooling system of a kind of motor and braking resistor.
Background technique
In existing hybrid vehicle, the radiator of motor is often arranged together with in engine booster, the radiator of cold radiator, motor and controller is unified, controls the heat exchange between air and each radiator by cooling fan.
In existing new-energy automobile power system, by drive motor and controller thereof in braking process, can electrification feedback to energy-storage system, thus realize Brake energy recovery, improve the performance driving economy of vehicle.But due to the state-of-charge (SOC is full of) that is subject to energy-storage system and energy-storage system self-capacity reason less than normal, motor feedback power when braking may exceed the peak output that energy-storage system can accept.At this moment often need annex or braking resistor to consume motor feedback power, overcharge to avoid energy-storage system (battery) and affect its life-span.
As shown in Figure 1, can accept the condition of whole feedback braking power at energy-storage system under, connect the power switch K often not conducting of braking resistor, braking resistor does not work; When energy-storage system SOC is full of; or when motor feedback power is greater than energy-storage system and annex acceptable power, power switch K closes by control system, and namely braking resistor starts consumed power; to protect energy-storage system not overcharge, or bus voltage superelevation.Typical condition is when vehicle lower long slope or emergency braking, and braking resistor needs auxiliary energy storage system consumption to brake electric energy, and this is extremely important to the braking safety of the larger commercial car of quality.
Current existing braking resistor, often adopts air-cooled configuration, causes its heat radiation volume larger; If adopt water-cooled configuration, the volume of braking resistor itself can significantly reduce, but needs to configure independently constituent, causes that its installation volume is altogether comparatively large or overall cost is too high, installs the larger volume of needs and space onboard.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, the object of the invention is to the shared cooling system proposing a kind of motor and braking resistor.
To achieve these goals, embodiments of the invention disclose the shared cooling system of a kind of motor and braking resistor, comprising: radiator, and described radiator is connected with the cooling circuit of motor and the cooling circuit of braking resistor respectively; Cooling fan, for cooling described radiator; Wherein, after the cooling liquid of described motor flows through described radiator, the cooling channel of described braking resistor and the water channel of described motor successively, described radiator is flowed to.
According to the motor of the embodiment of the present invention and the shared cooling system of braking resistor, utilize motor and braking resistor in the feature of the basic alternation of output power, the constituent of braking resistor and the cooling system of motor are shared, namely both heat dissipation problems be can solve, thus volume and the cost of whole system reduced
In addition, the shared cooling system of motor according to the above embodiment of the present invention and braking resistor, can also have following additional technical characteristics:
Further, when vehicle is in damped condition, described radiator and described cooling fan are used for cooling described braking resistor, and when vehicle is in driven driving cycle, described radiator and described cooling fan are used for cooling described motor.
Further, be in down hill braking operating mode at vehicle and be full of after energy-storage system is full of when described vehicle, adopting motor regenerative braking, connect described braking resistor to consume braking force simultaneously.
Further, the average power adopting semiconductor switch device to be consumed to control described braking resistor by pulsewidth modulation.
Further, the average power adopting semiconductor switch device to be consumed to control described braking resistor by pulsewidth modulation.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is that schematic diagram arranged by the cooling system of the motor of the mixed power system of correlation technique;
Fig. 2 is the structural representation that the motor of the present invention's concrete example and braking resistor share cooling system.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
Describe according to the motor of the embodiment of the present invention and the shared cooling system of braking resistor below in conjunction with accompanying drawing.
Fig. 2 is the structural representation of the motor of one embodiment of the invention and the shared cooling system of braking resistor.Please refer to Fig. 2, the shared cooling system of a kind of motor and braking resistor, comprises radiator and cooling fan.Wherein, after the cooling liquid of motor flows through radiator, the cooling channel of braking resistor and the water channel of motor successively, radiator is flowed to.
In one embodiment of the invention, when vehicle is in damped condition, braking resistor does not work substantially, and radiator and cooling fan are used for cooling braking resistor; When vehicle is in driven driving cycle, engine output is less or be zero, radiator and cooling fan are used for cooling motor, namely the feature utilizing engine output and braking resistor consumed power mutually to replace in operating mode, can make them share a set of cooling system.
In one embodiment of the invention, be in down hill braking operating mode at vehicle and be full of after energy-storage system is full of when vehicle, adopting motor regenerative braking, connect described braking resistor to consume braking force simultaneously.
Particularly, when vehicle is in braking or lower long slope braking, motor itself is not often needed to export very large power again, motor is often operated in idling operation or simply shuts down, at this moment the cooling of motor and radiation system often have larger margin of operation, can be used for cooling the heating of braking resistor; For the motor of 100kW output power, the cooling capacity of its cooling system is often also at more than 100kW; That is the cooling system of the motor of 100kW can take away the continuous braking feedback power of braking resistor 100kW, cools it.
When vehicle is in emergency braking and lower long slope braking, the power of motor braking feedback is often larger, dissipated in the braking resistor short time needed larger feedback braking power (50 ~ 100kW is even higher), also be higher to the cooling capacity of the cooling system of braking resistor, but other most of non-brake operating mode at ordinary times, do not need braking resistor work again, for it, a configuration powerful cooling system is often uneconomical separately; And the peak power of braking process, and the continuous brake power of lower long slope can, in the even larger range of 50 ~ 100kW, adopt the cooling system of motor to be enough to take away its heat produced.
Be by the advantage of the motor of the embodiment of the present invention and the shared cooling system of braking resistor: when heavy vehicle be in lower long slope need to brake for a long time time, first can preferentially adopt motor regenerative braking, to energy-storage system charging, reclaim braking energy; When being full of after energy-storage system is full of, still continuing to adopt motor regenerative braking, connecting braking resistor simultaneously, consume braking force; Due to the cooling capacity that engine-cooling system is powerful, braking resistor can power consumption braking force for a long time, namely vehicle can adopt motor regenerative braking for a long time, thus avoid machinery (friction disk or friction drum) braking system to work too early, reduce the wearing and tearing of mechanical braking sytem, improve vehicle, especially the safety and reliability of the braking system of heavy vehicle.
In one embodiment of the invention, the average power adopting semiconductor switch device to be consumed to control described braking resistor by pulsewidth modulation.
Particularly, controlling the device for power switching whether braking resistor is connected with power bus in Fig. 2, can be the power device of relay or semiconductor, as IGBT etc.If adopt IGBT, by the pulsewidth modulation of certain frequency (PWM) control signal, the average power that braking resistor consumes can also be controlled.Namely by the dutycycle of the PWM waveform of adjustment K switch, control the average consumed power value of braking resistor, itself and the feedback braking power of motor and the power that can absorb of (energy-storage system+accessory system) are matched.
Compare with the air-cooled braking resistor of transmission; adopt the braking resistor sharing cooling system with motor can have larger braking energy dissipation capacity; its range of temperature is more steady; larger peak value braking force can be absorbed in the short time, thus provide condition more easily for protecting energy-storage system and maintaining the stable of bus voltage.In cost and reliability advantageously.
In Fig. 2 to the requirement of braking resistor be, require braking resistor must can long-term work within the scope of engine operating temperature, namely braking resistor can long-term work under 85 ~ 100 DEG C of conditions.
In one embodiment of the invention, when the ambient temperature residing for vehicle is lower than preset temperature, during ato unit, discharge from the described braking resistor energy-storage system.
Particularly, under cryogenic, when motor needs warming-up to start, can discharge to braking resistor from energy-storage system (such as electrokinetic cell), at this moment because engine-cooling system can be braked resistance rapid heating, the cooling water temperature-rise period of motor can be accelerated, shorten cold post-start setup time and the warming-up process after starting.
In addition, other formation of the motor of the embodiment of the present invention and the shared cooling system of braking resistor and effect are all known for a person skilled in the art, in order to reduce redundancy, do not repeat.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalency thereof.
Claims (5)
1. a shared cooling system for motor and braking resistor, is characterized in that, comprising:
Radiator, described radiator is connected with the cooling circuit of motor and the cooling circuit of braking resistor respectively;
Cooling fan, for cooling described radiator;
Wherein, after the cooling liquid of described motor flows through described radiator, the cooling channel of described braking resistor and the water channel of described motor successively, described radiator is flowed to.
2. the shared cooling system of motor according to claim 1 and braking resistor, it is characterized in that, when vehicle is in damped condition, described radiator and described cooling fan are used for cooling described braking resistor, when vehicle is in driven driving cycle, described radiator and described cooling fan are used for cooling described motor.
3. the shared cooling system of motor according to claim 1 and braking resistor, it is characterized in that, be in down hill braking operating mode at vehicle and be full of after energy-storage system is full of when described vehicle, adopting motor regenerative braking, connect described braking resistor to consume braking force simultaneously.
4. the shared cooling system of motor according to claim 1 and braking resistor, is characterized in that, adopts the average power that semiconductor switch device is consumed to control described braking resistor by pulsewidth modulation.
5. the shared cooling system of motor according to claim 1 and braking resistor, it is characterized in that, when the ambient temperature residing for described vehicle is lower than preset temperature, when starting described motor, discharge from the described braking resistor energy-storage system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069580.9A CN105508020B (en) | 2016-02-01 | 2016-02-01 | The shared cooling system of engine and braking resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069580.9A CN105508020B (en) | 2016-02-01 | 2016-02-01 | The shared cooling system of engine and braking resistor |
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| CN105508020A true CN105508020A (en) | 2016-04-20 |
| CN105508020B CN105508020B (en) | 2018-05-29 |
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| CN201610069580.9A Active CN105508020B (en) | 2016-02-01 | 2016-02-01 | The shared cooling system of engine and braking resistor |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857089A (en) * | 2016-05-25 | 2016-08-17 | 清华大学 | Vehicle control method and device capable of considering both feedback braking and power consuming braking |
| CN106394257A (en) * | 2016-10-17 | 2017-02-15 | 济南大学 | Application of energy-saving electricity storage device of coupling hydraulic transmission |
| CN106394255A (en) * | 2016-10-17 | 2017-02-15 | 济南大学 | Heat-dissipating electric braking device |
| CN106394878A (en) * | 2016-10-18 | 2017-02-15 | 济南大学 | Air-and-water mixing resistance brake |
| CN106477030A (en) * | 2016-10-17 | 2017-03-08 | 济南大学 | The application of radiating electrodynamic device |
| CN106516091A (en) * | 2016-10-18 | 2017-03-22 | 济南大学 | Application of wind-water mixed resistance brake |
| CN106828120A (en) * | 2017-02-22 | 2017-06-13 | 长安大学 | The EBA and control method of a kind of parallel type hybrid dynamic heavy truck |
| CN107215213A (en) * | 2017-05-10 | 2017-09-29 | 金龙联合汽车工业（苏州）有限公司 | A kind of commercial car electric power-assisted braking system and its method |
| CN107559119A (en) * | 2017-08-08 | 2018-01-09 | 清华大学 | The control system and vehicle of engine low-temperature starting-up |
| CN107813706A (en) * | 2017-10-25 | 2018-03-20 | 中通客车控股股份有限公司 | A kind of integral new-energy passenger efficient EBA and method |
| CN108944348A (en) * | 2017-04-08 | 2018-12-07 | 曼卡车和巴士股份公司 | For realizing the braking resistor of auxiliary heater |
| CN110936806A (en) * | 2018-09-25 | 2020-03-31 | 比亚迪股份有限公司 | Radiator assembly and vehicle with same |
| CN111251800A (en) * | 2018-11-30 | 2020-06-09 | 宝沃汽车（中国）有限公司 | Vehicle thermal management system and vehicle |
| WO2020185138A1 (en) * | 2019-03-08 | 2020-09-17 | Scania Cv Ab | A method for controlling a vehicle in association with a descent, a powertrain, a vehicle, a computer program and a computer-readable medium |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105857089B (en) * | 2016-05-25 | 2018-05-29 | 清华大学 | Take into account the control method for vehicle and device of regenerative braking and wasted work braking |
| CN105857089A (en) * | 2016-05-25 | 2016-08-17 | 清华大学 | Vehicle control method and device capable of considering both feedback braking and power consuming braking |
| CN106394257A (en) * | 2016-10-17 | 2017-02-15 | 济南大学 | Application of energy-saving electricity storage device of coupling hydraulic transmission |
| CN106394255A (en) * | 2016-10-17 | 2017-02-15 | 济南大学 | Heat-dissipating electric braking device |
| CN106394255B (en) * | 2016-10-17 | 2018-08-17 | 济南大学 | Radiate electrodynamic device |
| CN106477030A (en) * | 2016-10-17 | 2017-03-08 | 济南大学 | The application of radiating electrodynamic device |
| CN106516091A (en) * | 2016-10-18 | 2017-03-22 | 济南大学 | Application of wind-water mixed resistance brake |
| CN106394878B (en) * | 2016-10-18 | 2018-06-08 | 济南大学 | Geomantic omen hybrid resistor brake |
| CN106394878A (en) * | 2016-10-18 | 2017-02-15 | 济南大学 | Air-and-water mixing resistance brake |
| CN106516091B (en) * | 2016-10-18 | 2018-07-20 | 济南大学 | The application of geomantic omen hybrid resistor brake |
| CN106828120A (en) * | 2017-02-22 | 2017-06-13 | 长安大学 | The EBA and control method of a kind of parallel type hybrid dynamic heavy truck |
| CN106828120B (en) * | 2017-02-22 | 2019-03-22 | 长安大学 | A kind of auxiliary braking system control method of parallel type hybrid dynamic heavy truck |
| CN108944348A (en) * | 2017-04-08 | 2018-12-07 | 曼卡车和巴士股份公司 | For realizing the braking resistor of auxiliary heater |
| EP3385099A3 (en) * | 2017-04-08 | 2019-02-13 | MAN Truck & Bus AG | Brake resistor for implementing an auxiliary heater |
| CN107215213A (en) * | 2017-05-10 | 2017-09-29 | 金龙联合汽车工业（苏州）有限公司 | A kind of commercial car electric power-assisted braking system and its method |
| CN107559119A (en) * | 2017-08-08 | 2018-01-09 | 清华大学 | The control system and vehicle of engine low-temperature starting-up |
| CN107813706A (en) * | 2017-10-25 | 2018-03-20 | 中通客车控股股份有限公司 | A kind of integral new-energy passenger efficient EBA and method |
| CN107813706B (en) * | 2017-10-25 | 2023-09-05 | 中通客车股份有限公司 | Efficient auxiliary braking system and method for new energy bus |
| CN110936806A (en) * | 2018-09-25 | 2020-03-31 | 比亚迪股份有限公司 | Radiator assembly and vehicle with same |
| CN111251800A (en) * | 2018-11-30 | 2020-06-09 | 宝沃汽车（中国）有限公司 | Vehicle thermal management system and vehicle |
| WO2020185138A1 (en) * | 2019-03-08 | 2020-09-17 | Scania Cv Ab | A method for controlling a vehicle in association with a descent, a powertrain, a vehicle, a computer program and a computer-readable medium |
| US11884275B2 (en) | 2019-03-08 | 2024-01-30 | Scania Cv Ab | Method for controlling a vehicle in association with a descent, a powertrain, a vehicle, a computer program and a computer-readable medium |
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