CN103900749A - Energy-saving type chassis dynamometer - Google Patents
Energy-saving type chassis dynamometer Download PDFInfo
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- CN103900749A CN103900749A CN201410079226.5A CN201410079226A CN103900749A CN 103900749 A CN103900749 A CN 103900749A CN 201410079226 A CN201410079226 A CN 201410079226A CN 103900749 A CN103900749 A CN 103900749A
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Abstract
The invention discloses an energy-saving type chassis dynamometer. The energy-saving type chassis dynamometer comprises an electric generator, a roller mechanism, an eddy current dynamometer, a speed sensor and a torque sensor. In the aspect of the mechanical structure of the energy-saving type chassis dynamometer, the eddy current dynamometer serving as the important component of a traditional chassis dynamometer is replaced by the electric generator which can be an alternating current generator or a direct current generator. The energy-saving type chassis dynamometer is simple in structure and low in cost, the energy, scattering into the atmosphere, of the traditional chassis dynamometer is recycled in an electric energy mode, the obvious energy-saving effect is achieved, and the energy-saving type chassis dynamometer is convenient to popularize and apply in the market.
Description
Technical field
The present invention relates to a kind of motor-vehicle chassis dynamometer machine field, relate in particular to a kind of energy-saving chassis dynamometer field.
Background technology
Along with the continuous progress of society and scientific and technical development, saving the energy is the necessary important content of human survival and development, China since the eighties in 20th century close propulsion energy-saving reduce discharging relevant policy, energy-saving and emission-reduction now also become national affairs and the major issue that the whole society participates in, the present invention relates to a kind of energy-saving chassis dynamometer, convert the lost energy of script in automobile testing process to electric energy by generator, realize energy and recycle.
Chassis dynamometer is a kind of electromechanical integrated product that is widely used in automotive test at present.Chassis dynamometer is for the special test equipment of the aspect such as dynamic property, discharge of automobile, and it is mainly by 2 pairs of cylinders and power absorption cell formation.Torque sensor and speed pickup are housed on power absorption unit in order to test moment of torsion and power.Like this, output power, powertrace and the discharge under certain operating mode that just can testing automobile.In the test process of chassis dynamometer, the transmission of energy is as follows: fuel oil → engine → automotive transmission → wheel → cylinder → power absorption unit → atmosphere.The power absorption unit of tradition chassis dynamometer generally adopts eddy current absorption dynamometer, and its ultimate principle is to carry out change of load (absorbed power) by changing exciting current, and the power absorbing is transformed into heat and discharges (Fig. 3) to atmosphere.So, in each test, the fuel of automobile finally all becomes heat and has emitted.
In prior art, as shown in Figure 1, traditional chassis dynamometer, in test process, by the energy of measurand (automobile) output, has become heat exhaustion through eddy current absorption dynamometer, and its energy transitive graph is as shown in 3.Fig. 2 is the power control system block diagram of existing chassis dynamometer, and computing machine regulates and controls chassis dynamometer by direct supply.
Moreover, can only absorbed power due to the eddy current absorption dynamometer of prior art, do not possess the anti-ability of dragging, so also will add in addition an anti-motor that drags to adapt to different test requests.
Summary of the invention
In view of the defect of prior art, the object of this invention is to provide a kind of working method that changes existing chassis dynamometer, became electric energy and reclaimed being originally discharged to heat that atmosphere wastes, realize energy-conservation energy-saving chassis dynamometer.
For achieving the above object, the invention provides a kind of energy-saving chassis dynamometer, comprise cylinder mechanism, generator, speed pickup and torque sensor, described energy-saving chassis dynamometer adopts generator to replace chassis dynamometer important component part eddy current absorption dynamometer in physical construction, and generator can adopt alternating current generator or direct current generator.
Further, the kinetic energy that motor car engine is transmitted by power train and roller frame, drives generator rotor to rotate, and the magnetic field of rotation makes fixing armature winding cutting magnetic line produce electromotive force, thereby converts kinetic energy to electric energy.
Further, the energy-saving chassis dynamometer of one according to claim 1, is characterized in that: described energy-saving chassis dynamometer also comprises a kind of power control system for energy-saving chassis dynamometer.
Further, described system is that the alternating current that motor is sent in test process changes direct current into, then the industrial frequency AC that is standard according to the phase transition of power frequency and on-the-spot power supply by this direct current, flows to electrical network.
Further, described system connects the converter module of two application IGBT technology back-to-back, the alternating current first electromechanical testing process being sent changes direct current into by the first module, then the industrial frequency AC that is standard by another module according to the phase transition of power frequency and on-the-spot power supply by this direct current.
Further, the converter module circuit of described power control system comprises AC inlet wire, intermediate DC circuit, IGBT supply module, LCL wave filter and AC fuse.Described control system also comprises by the pwm modulator of microcomputerized control, phase controller.
Technological merit of the present invention: because traditional chassis dynamometer can not be realized energy recovery function, this invention has changed and originally with chassis dynamometer machine, the energy of tested vehicle output has been become to the mode of heat to airborne release, invent a kind of method that chassis dynamometer energy reclaims, by adopting generator to replace traditional chassis dynamometer power absorption device, the power of engine output is become to electric energy by generator, then flow to electrical network for use, thereby realize energy-conservation object, can be used in the commercial production of chassis dynamometer.It is simple in structure, with low cost,
Recover energy in electric energy mode, there is significant energy-saving effect, be convenient to marketing application.
Accompanying drawing explanation
Fig. 1 is the existing chassis dynamometer contour structures of the present invention schematic diagram;
Fig. 2 is the power control system structure of block diagram schematic diagram of the existing chassis dynamometer of the present invention;
Fig. 3 is the energy transitive graph of the existing chassis dynamometer of the present invention;
Fig. 4 is the energy-saving chassis dynamometer contour structures of the present invention schematic diagram;
Fig. 5 is the energy transitive graph of the energy-saving chassis dynamometer of the present invention;
Fig. 6 is the power control system structural representation of the existing energy-saving chassis dynamometer of the present invention;
Fig. 7 is the converter module circuit diagram of the existing power control system of the present invention.
Embodiment
For making object of the present invention, technical scheme more clearly clear, below in conjunction with accompanying drawing, technical solution of the present invention is carried out to clear, complete description.
Shown in Fig. 3, be traditional chassis dynamometer using method and energy transitive graph.
The energy-saving chassis dynamometer contour structures of one shown in Fig. 4 schematic diagram, comprises speed pickup, torque sensor, alternating current generator and cylinder mechanism.
As can be seen from Figure 4, compared with existing chassis dynamometer, the main change in physical construction of energy-saving chassis dynamometer is to have changed original eddy current absorption dynamometer into alternating current generator.
The effect of this motor is: generating: under absorbed power state, use as generator, directly change the power (transmitting from motor car engine) absorbing into electric energy.Counter dragging: use as motor counter dragging under state.Cancel anti-motor and the gear train thereof of dragging that is originally positioned at chassis dynamometer middle part.
As shown in Figure 5, in the process of use chassis dynamometer testing vehicle, the output power of motor car engine is transferred to generator by power train, cylinder mechanism to a kind of energy-saving chassis dynamometer energy transitive graph, converts kinetic energy to electric energy by generator.In use, motor is that generator uses by drum having action to chassis dynamometer, but frequency, phase place, voltage are all uncontrollable.And to realize feedback, must meet the requirement of local electrical network in voltage, frequency and phase place.
To achieve these goals, need to design a set of power electronic circuits, its function is: the alternating current first motor being sent in test process changes direct current into, then the industrial frequency AC that is standard according to the phase transition of power frequency and on-the-spot power supply by this direct current, feeds back to local circuit.
In order to realize feedback (generating), the converter module of two application IGBT technology is connected back-to-back, be illustrated in fig. 6 shown below: energy-saving chassis dynamometer also comprises a kind of power control system for energy-saving chassis dynamometer.Described system is that the alternating current first motor being sent in test process changes direct current into, then the industrial frequency AC that is standard according to the phase transition of power frequency and on-the-spot power supply by this direct current, feeds back to local circuit.Described system connects the converter module of two application IGBT technology back-to-back, the alternating current first motor being sent in test process changes direct current into by First converter module, then the industrial frequency AC that is standard according to the phase transition of power frequency and on-the-spot power supply by another converter module of this direct current.
The energy-saving chassis dynamometer of one as shown in Figure 7, described converter module circuit comprises AC inlet wire, intermediate DC circuit, IGBT supply module, LCL wave filter and AC fuse.
As shown in Figure 5, carry out PWM adjusting by the computing machine of main control module, the energy that so just chassis dynamometer in test process can be absorbed, is converted into AC energy feedback by circuit.
A kind of energy-saving chassis dynamometer, alternating current generator changes direct current generator into.Replace alternating current generator with direct current generator, can realize equally energy-conservation object.Its control system is relatively simple but the cost of direct current generator is higher and it is difficult to safeguard.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request protection of the present invention.
Claims (9)
1. an energy-saving chassis dynamometer, comprise cylinder mechanism (1), eddy current absorption dynamometer (2), speed pickup (3) and torque sensor (4), it is characterized in that: described energy-saving chassis dynamometer adopts generator (5) to replace traditional chassis dynamometer important component part eddy current absorption dynamometer (2) in physical construction.
2. the energy-saving chassis dynamometer of one according to claim 1, it is characterized in that: motor car engine is transmitted kinetic energy by power train and roller frame (1), drive generator (5) inner rotator to rotate, the magnetic field of rotation makes fixing armature winding cutting magnetic line produce electromotive force, thereby converts kinetic energy to electric energy.
3. the energy-saving chassis dynamometer of one according to claim 1, is characterized in that: described generator is alternating current generator.
4. the energy-saving chassis dynamometer of one according to claim 1, is characterized in that: described generator is direct current generator.
5. the energy-saving chassis dynamometer of one according to claim 1, is characterized in that: described energy-saving chassis dynamometer also comprises a kind of power control system for energy-saving chassis dynamometer.
6. the energy-saving chassis dynamometer of one according to claim 5, it is characterized in that: described system is that the alternating current that generator is sent in test process changes direct current into, the industrial frequency AC that is standard by this direct current according to the phase transition of power frequency and on-the-spot power supply again, flows to electrical network.
7. the energy-saving chassis dynamometer of one according to claim 6, it is characterized in that: described system connects the converter module of two application IGBT technology back-to-back, the alternating current first motor in test process being sent changes direct current into by the first module, then the industrial frequency AC that is standard by another module according to the phase transition of power frequency and on-the-spot power supply by this direct current.
8. one according to claim 7, for energy-saving chassis dynamometer, is characterized in that: the converter module circuit of described power control system comprises AC inlet wire, intermediate DC circuit, IGBT supply module, LCL wave filter and AC fuse.
9. one according to claim 8, for energy-saving chassis dynamometer, is characterized in that: described control system also comprises by the pwm modulator of microcomputerized control, phase controller.
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CN201410079226.5A CN103900749A (en) | 2014-03-05 | 2014-03-05 | Energy-saving type chassis dynamometer |
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CN201410079226.5A CN103900749A (en) | 2014-03-05 | 2014-03-05 | Energy-saving type chassis dynamometer |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105651437A (en) * | 2016-03-17 | 2016-06-08 | 中国人民解放军装甲兵工程学院 | Track-laying vehicle chassis dynamometer |
CN106124103A (en) * | 2016-08-17 | 2016-11-16 | 中国兵器装备集团摩托车检测技术研究所 | The floating electric motor type dual-purpose dynamometer machine of engine transient dynamic test and dual-purpose method thereof |
WO2017054366A1 (en) * | 2015-09-28 | 2017-04-06 | 李启飞 | Maximum loading adjustable magnetic dynamometer |
CN108362414A (en) * | 2018-04-18 | 2018-08-03 | 北京博科测试系统股份有限公司 | A kind of new automobile emission test road load system |
CN109682517A (en) * | 2018-12-25 | 2019-04-26 | 太原理工大学 | Flame-proof rubber-tired cart chassis power detection device and its detection method |
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CN2187785Y (en) * | 1994-04-14 | 1995-01-18 | 张锦舟 | Electric power changing device for asynchronous power measuring machine |
US5522257A (en) * | 1994-05-16 | 1996-06-04 | Avl North America, Inc. | Suspended single roll dynamometer |
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CN2187785Y (en) * | 1994-04-14 | 1995-01-18 | 张锦舟 | Electric power changing device for asynchronous power measuring machine |
US5522257A (en) * | 1994-05-16 | 1996-06-04 | Avl North America, Inc. | Suspended single roll dynamometer |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017054366A1 (en) * | 2015-09-28 | 2017-04-06 | 李启飞 | Maximum loading adjustable magnetic dynamometer |
CN105651437A (en) * | 2016-03-17 | 2016-06-08 | 中国人民解放军装甲兵工程学院 | Track-laying vehicle chassis dynamometer |
CN106124103A (en) * | 2016-08-17 | 2016-11-16 | 中国兵器装备集团摩托车检测技术研究所 | The floating electric motor type dual-purpose dynamometer machine of engine transient dynamic test and dual-purpose method thereof |
CN108362414A (en) * | 2018-04-18 | 2018-08-03 | 北京博科测试系统股份有限公司 | A kind of new automobile emission test road load system |
CN109682517A (en) * | 2018-12-25 | 2019-04-26 | 太原理工大学 | Flame-proof rubber-tired cart chassis power detection device and its detection method |
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Application publication date: 20140702 |