CN104852442A - Wireless power transmission system from commercial power to vehicle battery pack, and control method thereof - Google Patents
Wireless power transmission system from commercial power to vehicle battery pack, and control method thereof Download PDFInfo
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Abstract
The invention relates to a wireless power transmission system from commercial power to a vehicle battery pack, and a control method thereof. The wireless power transmission system includes an energy transmission device and a control device that are connected to each other. The energy transmission device includes an AC source, a quasi impedance source module, an H bridge inversion module, a magnetic energy emission module, a magnetic energy reception module, a rectification filtering module and a high-voltage power battery module, which are all connected in sequence. The magnetic energy emission module is connected to the magnetic energy reception module in a magnetic coupling manner. The quasi impedance source module, the H bridge inversion module, the magnetic energy emission module, the magnetic energy reception module and the high-voltage power battery module are connected to the control device. Compared with the prior art, the system and the method have the advantages that the system is simple in structure, the cost is saved, chopper links are avoided, the efficiency is improved, the control complexity is minimized, control modes are diversified, etc.
Description
Technical field
The present invention relates to the vehicle-mounted wireless power transmission application of electric automobile, especially relate to a kind of civil power to the radio energy transmission system of on-vehicle battery bag and control method thereof.
Background technology
Conventional electric automobile charging system actual relies on wire cable to realize the charging process of civil power to vehicle mounted dynamic battery bag, but the method can not realize automatic charging, run counter to the requirement of electric automobile user to convenience, charging process can produce high-voltage electric shock danger to operator simultaneously.Wireless power transmission technology can solve the problem just, replaces traditional wire cable, electric energy is first become magnetic energy, is receiving and be converted to electric energy, being then filled with in electrokinetic cell with a pair magnetic energy for emission and receiver module.Wireless power transmission technology can realize safe, convenient, full automatic charging process, and has stronger adaptability to severe applied environment.
Wireless power transmission technology generally relies on H-bridge inverter circuit to be high-frequency alternating current by direct current copped wave, with driving source limit magnetic energy for emission mechanism.For practical application, input power source is generally 220V civil power, therefore between 220V civil power and H-bridge inverter circuit, needs an Active Power Factor Correction link, to reduce the harmonic pollution of H-bridge inverter circuit to 220V civil power.Conventional active circuit of power factor correction is generally BOOST booster circuit, because it exports as direct current, therefore needs the DC filter capacitor of a large capacitance, and needs an extra power switch pipe independently to control.For radio energy transmission system, its magnetic energy for emission receiving terminal has resonance characteristic, and the voltage therefore after Active Power Factor Correction link does not need to maintain DC state always.For this kind of special applications, select suitable topological structure and corresponding control strategy, realize Active Power Factor Correction function and power battery charging Current adjustment function has important practical usage.
Summary of the invention
Object of the present invention be exactly provide to overcome defect that above-mentioned prior art exists a kind of structure simple, save cost, save copped wave link, raise the efficiency, save sample circuit, reduce control complexity, civil power that control mode is various is to the radio energy transmission system of on-vehicle battery bag and control method thereof.
Object of the present invention can be achieved through the following technical solutions:
A kind of civil power is to the radio energy transmission system of on-vehicle battery bag, described radio energy transmission system comprises interconnective energy transmission device and control device, described energy transmission device comprises the alternating current source connected successively, accurate source of resistance module, H bridge inversion module, magnetic energy for emission module, magnetic energy receiver module, rectification filtering module and high voltage power battery module, described magnetic energy for emission module is connected by magnetic-coupled mode with magnetic energy receiver module, described accurate source of resistance module, H bridge inversion module, magnetic energy for emission module, magnetic energy receiver module is connected with control device respectively with high voltage power battery module.
Described control device comprises phase mismatch detection module, transmitting terminal data acquisition module, switch drive module and the receiving terminal data acquisition module connected successively, wireless data transmission module, wireless data receipt modules and controller module, described phase mismatch detection module is connected with H bridge inversion module and controller module respectively, described transmitting terminal data acquisition module is connected with accurate source of resistance module and controller module respectively, described switch drive module respectively with accurate source of resistance module, H bridge inversion module is connected with controller module, described receiving terminal data acquisition module is connected with magnetic energy receiver module and high voltage power battery module respectively.
Described alternating current source comprises the mains supply and unidirectional half-wave rectifier bridge that are interconnected 220V/50Hz.
Described accurate source of resistance module comprises the first electric capacity C
1, the second electric capacity C
2and first inductance L of connecting successively
1, switch element and the second inductance L
2, the second described inductance L
2be connected with H bridge inversion module, the second described electric capacity C
2one end is connected to the first inductance L
1with between switch element, the other end is connected with H bridge inversion module, the first described electric capacity C
1one end is connected to switch element and the second inductance L
2between, the other end is connected with alternating current source, and described switch element is diode D
1or triode S.
Described wireless data transmission module and receiving terminal data acquisition module adopt Zigbee or DSRC to carry out the wireless transmission of data, described controller module is strong timing controller, comprise CPLD, FPGA or high speed MCU, described switch drive module is four roads or five road independent electrical isolation drive chips, and described phase mismatch detection module comprises phase discriminator chip.
Described magnetic energy for emission module and magnetic energy receiver module are formed by resonant network, and comprise LCL topology and LC series topology, and resonance frequency is identical with the operating frequency of H bridge inversion module, described high voltage power battery module is electrokinetic cell bag.
Described switch element is power MOS pipe, pliotron or IGBT.
Civil power, to a control method for the radio energy transmission system of on-vehicle battery bag, comprises the following steps:
1) after system electrification, controller module produces excitation by H bridge inversion module to magnetic energy for emission module, corresponding system response is measured by receiving terminal data acquisition module, the size of the mutual inductance M between the mode On-line Estimation magnetic energy for emission module of averaging with repetitive measurement and magnetic energy receiver module, and formulate charging strategy;
2) according to the charging strategy formulated, controller module is worked by corresponding control mode control H bridge inversion module, the current waveform inputting inductance L 1 in accurate source of resistance module is controlled by the ratio of the same bridge arm direct pass time in setting H bridge inversion module and non-straight-through time, half-wave voltage waveform after making it follow the tracks of commercial power rectification, and electricity is filled with in high voltage power battery module simultaneously;
3) during system worked well, transmitting terminal data acquisition module and receiving terminal data acquisition module are sampled to the resonant capacitor voltage in magnetic energy for emission module and magnetic energy receiver module respectively, guarantee that it does not exceed the maximum withstand voltage of resonant capacitance, and resonance current size in resonant cavity can be calculated according to the resonant capacitor voltage of sampling;
4) when charging current needed for high voltage power battery module changes, controller module regulates H bridge inversion module by switch drive module, improve or reduce in accurate source of resistance module and input sawtooth current envelope amplitude in inductance L 1, to meet high voltage power charging battery module demand;
5) controller module detects output square-wave voltage and the sine-wave current waveform of H bridge inversion module by phase mismatch detection module, judge whether to occur phase mismatch phenomenon, if so, then improve or reduce system operating frequency until phase mismatch phenomenon disappears.
Described step 2) in corresponding control mode comprise basic control mode and free harmonic vibration control mode is led directly in phase shift, described basic control mode comprises phase shifting control and straight-through control, described phase shift is led directly to free harmonic vibration control mode and is controlled for adding free harmonic vibration in basic control mode, described phase shifting control is identical with tradition phase-shifting control mode, for realizing the Sofe Switch state of propons arm switch pipe, described straight-through control is realized by the conducting simultaneously of same brachium pontis switching tube or the conducting simultaneously of front-rear axle arm switch pipe.
Time sequence status in described basic control mode is:
In t0 ~ t1 moment: switch S 1 turns off, now switch S 3 is still in conducting state, and in magnetic energy for emission module 4, resonance topological forces electric current to form circulation in switch S 3 with the body diode of switch S 2;
T1 ~ t2 moment: flow through electric current in switch S 2 body diode, now S2 opens, and achieves no-voltage conducting;
T2 ~ t3 moment: switch S 4 conducting, now switch S 3 and switch S 4 conducting simultaneously, realize straight-through control, in accurate source of resistance module 2, electric capacity C1 is charged to inductance L 2 by S3 and S4, and electric capacity C2 and alternating current source 1 are charged to inductance L 1 by S3 and S4;
In t3 ~ t4 moment: switch S 3 turns off, straight-through control is terminated, and H bridge inversion module 3 exports losing side power signal, inductance L 1, electric capacity C2, alternating current source in accurate source of resistance module 2, and electric capacity C1 and inductance L 2 one in the same way H-bridge circuit are powered, and play boosting;
In t4 ~ t5 moment: switch S 2 turns off, H bridge inversion module 3 output voltage is 0, is continued until that t5 moment half harmonic period terminates;
T5 ~ t7 moment: the course of work is identical with t0 to the t2 section course of work.
Compared with prior art, the present invention has the following advantages:
One, structure simple, save cost: onboard wireless electric energy transmission system Active Power Factor Correction function of the present invention is realized by accurate source of resistance module, compared to traditional BOOST APFC, a large capacitance filter capacitor, a power switch or a power diode can be saved, reduce system bulk, save system cost, elected when using power diode, accurate source of resistance module as power factor correction link is only made up of passive device, does not need independent control.
Two, save copped wave link, raise the efficiency: electrokinetic cell bag charging current regulatory function is integrated in H bridge inversion module by onboard wireless electric energy transmission system of the present invention, regulated in accurate source of resistance module by control H bridge inversion module and input sawtooth current envelope amplitude in inductance L 1, to realize electrokinetic cell bag charging current regulatory function.But not between rectification filtering module and high voltage power battery module, there is a DC-DC conversion module in conventional wireless electric energy transmission system, the charging current for electrokinetic cell bag regulates, and therefore The present invention reduces a copped wave link, improves system effectiveness.
Three, sample circuit is saved: onboard wireless electric energy transmission system of the present invention obtains the size of resonance current in resonant cavity indirectly by detecting resonant capacitor voltage in magnetic energy for emission module and magnetic energy receiver module, and the size of mutual inductance M under this system mode is calculated in conjunction with the input of magnetic energy for emission module and the output waveform of magnetic energy receiver module, for the control strategy that charges accordingly, therefore save current sample shunt or Hall element and current sampling circuit, reduce system cost.
Four, control complexity is reduced: the resonant topology that onboard wireless electric energy transmission system magnetic energy for emission module of the present invention and magnetic energy receiver module adopt is LCL topology and LC series topology, two kinds of topological structures all directly can carry out constant current charge to electrokinetic cell bag, reflected umpedance is all in purely resistive, do not need the system off resonance problem considering that transmission range and load condition change and cause, reduce the complexity of control system.
Five, control mode is various: the present invention by straight-through to control, phase shifting control and free harmonic vibration control the mode that three kinds of control modes combine, H bridge inversion module is controlled, achieve the adjustment of the frequency of electric energy, amplitude and phase place, consider comprehensively, Be very effective.
Accompanying drawing explanation
Fig. 1 is system configuration schematic diagram of the present invention.
Fig. 2 is input voltage and the input current waveform figure of accurate source of resistance module of the present invention.
Fig. 3 is the sequencing control figure of the H bridge inversion module without free harmonic vibration control of the present invention.
Fig. 4 is the sequencing control figure of the H bridge inversion module having free harmonic vibration to control of the present invention.
Wherein, 1, alternating current source, 2, accurate source of resistance module, 3, H bridge inversion module, 4, magnetic energy for emission module, 5, magnetic energy receiver module, 6, rectification filtering module, 7, high voltage power battery module, 8, receiving terminal data acquisition module, 9, wireless data transmission module, 10, wireless data receipt modules, 11, phase mismatch detection module, 12, controller module, 13, transmitting terminal data acquisition module, 14, switch drive module
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment:
As shown in Figure 1, a kind of civil power is to the radio energy transmission system of on-vehicle battery bag, radio energy transmission system comprises interconnective energy transmission device and control device, energy transmission device comprises the alternating current source 1 connected successively, accurate source of resistance module 2, H bridge inversion module 3, magnetic energy for emission module 4, magnetic energy receiver module 5, rectification filtering module 6 and high voltage power battery module 7, magnetic energy for emission module 4 is connected by magnetic-coupled mode with magnetic energy receiver module 5, accurate source of resistance module 2, H bridge inversion module 3, magnetic energy for emission module 4, magnetic energy receiver module 5 is connected with control device respectively with high voltage power battery module 7.
Power factor emendation function is completed by accurate source of resistance module 2, instead of traditional BOOST circuit, by straight-through time and the non-straight-through time of front and back brachium pontis in control H bridge inversion module 3, the zigzag current waveform envelope line inputted in accurate source of resistance module 2 in inductance L 1 is made to be half-sinusoid, and the sinusoidal half-wave voltage same-phase inputted with alternating current source, to realize power factor emendation function, control this envelope amplitude size simultaneously, to regulate electrokinetic cell bag charging current, magnetic energy for emission module 4 and magnetic energy receiver module 5 are formed by resonant network, comprise LCL topology and LC series topology, two kinds of topologys can guarantee that in actual vehicular applications, system stability works in quasi-resonance state, can prevent transmission range and electrokinetic cell bag terminal voltage from changing impact on system resonance operating state simultaneously.Rectification filtering module 6 is directly connected with high voltage power battery module 7, without traditional DC-DC module, improves system effectiveness, reduces system bulk.
Control device comprises phase mismatch detection module 11, transmitting terminal data acquisition module 13, switch drive module 14 and the receiving terminal data acquisition module 8 connected successively, wireless data transmission module 9, wireless data receipt modules 10 and controller module 12, phase mismatch detection module 11 is connected with H bridge inversion module 3 and controller module 12 respectively, transmitting terminal data acquisition module 13 is connected with accurate source of resistance module 2 and controller module 12 respectively, switch drive module 14 respectively with accurate source of resistance module 2, H bridge inversion module 3 is connected with controller module 12, receiving terminal data acquisition module 8 is connected with magnetic energy receiver module 5 and high voltage power battery module 7 respectively.
To be sampled magnetic energy for emission module 4 and resonant capacitor voltage in magnetic energy receiver module 5 by transmitting terminal data acquisition module 13 and receiving terminal data acquisition module 8, carry out size of current in indirect inspection resonant network, monitor resonant capacitor voltage whether overvoltage simultaneously, save current sample shunt or Hall element and corresponding sample circuit.Controller module 12 produces the switching tube drive singal of 4 tunnels or 5 tunnels independently electrical isolation by switch drive module 14, control H bridge inversion module 3 produces the different positive and negative square-wave signal of pulsewidth, and measure corresponding system responses by receiving terminal data acquisition module 8 and transmitting terminal data acquisition module 13, with the size of the mutual inductance M between On-line Estimation magnetic energy for emission module 4 and magnetic energy receiver module 5, to adjust the electrokinetic cell bag charging strategy of response.Detect H bridge inversion module 3 by phase mismatch detection module 11 and export square-wave voltage and sine-wave current, change sinusoidal current waveform into sinusoidal voltage waveform, and with reference to compare and change square wave voltage waveform into, two-way square-wave voltage is inputted special phase discriminator chip, judge whether system occurs phase mismatch phenomenon by sampling discrimination device chip output voltage amplitude, if there is off resonance state, controller module 12 will regulate H bridge inversion module 3 operating frequency until phase mismatch phenomenon disappears.Controller module 12 comprises strong timing controller, as CPLD, FPGA or high speed MCU, produces drive waveforms as shown in Figure 3 by control switch driver module 14.Waveform shown in Fig. 3 is the phase shifting control waveform of the most basic H bridge inversion module 3, does not comprise free harmonic vibration and controls, and inserts the straight-through time within each cycle.Each harmonic period T was made up of the time of leading directly to and non-straight-through time, shown in Fig. 3 a three straight-through time is different, control the scale of this straight-through time and non-straight-through time just, just make the input current waveform envelope of accurate source of resistance module 2 for shown in Fig. 2, straight-through control shown in Fig. 3 realizes by making lagging leg S3 and S4 conducting simultaneously, also can be that S1 and S2 conducting simultaneously realizes or S1, S2, S3 and S4 conducting simultaneously realizes., between switch S 1 and S2, there is Dead Time in switch S 1 and there is the phase shift time between S3, S2 and S4.Therefore the square-wave waveform pulsewidth that H bridge inversion module 3 exports determined by phase shift time, Dead Time and straight-through time.The course of work that control is led directly in basic phase shift is set forth below for half harmonic period (t0 ~ t7):
T0 ~ t1: switch S 1 turns off, now switch S 3 is still in conducting state, and in magnetic energy for emission module 4, resonance topological forces electric current to form circulation in switch S 3 with the body diode of switch S 2.
T1 ~ t2: flow through electric current in switch S 2 body diode, now S2 opens, and achieves no-voltage conducting.
T2 ~ t3: switch S 4 conducting, now switch S 3 and switch S 4 conducting simultaneously, realize straight-through control.In accurate source of resistance module 2, electric capacity C1 is charged to inductance L 2 by S3 and S4, and electric capacity C2 and alternating current source 1 are charged to inductance L 1 by S3 and S4.
T3 ~ t4: switch S 3 turns off, straight-through control is terminated, and H bridge inversion module 3 exports losing side power signal.Inductance L 1, electric capacity C2, alternating current source in accurate source of resistance module 2, electric capacity C1 and inductance L 2 one in the same way H-bridge circuit are powered, and play boosting.
T4 ~ t5: switch S 2 turns off, H bridge inversion module 3 output voltage is 0, is continued until that t5 moment half harmonic period terminates.
T5 ~ t7: the course of work and t0 to the t2 section course of work similar.
In control procedure as shown in Figure 3, there are two straight-through times in each harmonic period T, therefore the operating frequency of accurate source of resistance module 2 is the twice of system resonance operating frequency.
Figure 4 shows that the sequencing control figure of the H bridge inversion module that free harmonic vibration controls, control comprising phase shifting control, straight-through control and free harmonic vibration, phase shifting control time, straight-through control time and free harmonic vibration control time constitute a complete cycle, and above-mentioned three kinds of control times can independent assortment.Shown in phase shifting control with Fig. 3, control mode is identical, and straight-through control is realized by the switch S 3 of lagging leg and S4 conducting simultaneously, and free harmonic vibration controls to be realized by switch S 2 and S3 conducting simultaneously.In this example, Dead Time in phase shifting control is 1us, the phase shift time is 2us, the pulse width time of switch S 1, S2, S3 and S4 is 9us, therefore H bridge inversion module 3 output voltage waveforms is pulse width time is 7us, half period is the positive and negative square wave power signals of 10us, in this phase shifting control, inserts without the straight-through time.Straight-through control is realized by S3 and S4 conducting simultaneously, and continue 20us, the ratio of this time shared by a complete cycle determines the amplitude size that H bridge inversion module exports square wave, and the step-up ratio in this example is 120/ (120-20)=1.2.Free harmonic vibration controls to be realized by S2 and S3 conducting simultaneously, and also can be that S1 and S4 conducting simultaneously realizes, continue 20us, the length of this time affects the step-up ratio size of accurate source of resistance module equally.Within this control time, H bridge inversion module 3 does not outwards export square wave power signals, and magnetic energy for emission module carries out free harmonic vibration by S2 and S3, and resonant cavity energy diminishes gradually, until next phase shifting control process.
Claims (10)
1. a civil power is to the radio energy transmission system of on-vehicle battery bag, it is characterized in that, described radio energy transmission system comprises interconnective energy transmission device and control device, described energy transmission device comprises the alternating current source (1) connected successively, accurate source of resistance module (2), H bridge inversion module (3), magnetic energy for emission module (4), magnetic energy receiver module (5), rectification filtering module (6) and high voltage power battery module (7), described magnetic energy for emission module (4) is connected by magnetic-coupled mode with magnetic energy receiver module (5), described accurate source of resistance module (2), H bridge inversion module (3), magnetic energy for emission module (4), magnetic energy receiver module (5) is connected with control device respectively with high voltage power battery module (7).
2. a kind of civil power according to claim 1 is to the radio energy transmission system of on-vehicle battery bag, it is characterized in that, described control device comprises phase mismatch detection module (11), transmitting terminal data acquisition module (13), switch drive module (14) and the receiving terminal data acquisition module (8) connected successively, wireless data transmission module (9), wireless data receipt modules (10) and controller module (12), described phase mismatch detection module (11) is connected with H bridge inversion module (3) and controller module (12) respectively, described transmitting terminal data acquisition module (13) is connected with accurate source of resistance module (2) and controller module (12) respectively, described switch drive module (14) respectively with accurate source of resistance module (2), H bridge inversion module (3) is connected with controller module (12), described receiving terminal data acquisition module (8) is connected with magnetic energy receiver module (5) and high voltage power battery module (7) respectively.
3. a kind of civil power according to claim 1 is to the radio energy transmission system of on-vehicle battery bag, it is characterized in that, described alternating current source (1) comprises the mains supply and unidirectional half-wave rectifier bridge that are interconnected 220V/50Hz.
4. a kind of civil power according to claim 1 is to the radio energy transmission system of on-vehicle battery bag, it is characterized in that, described accurate source of resistance module (2) comprises the first electric capacity C
1, the second electric capacity C
2and first inductance L of connecting successively
1, switch element and the second inductance L
2, the second described inductance L
2be connected with H bridge inversion module (3), the second described electric capacity C
2one end is connected to the first inductance L
1with between switch element, the other end is connected with H bridge inversion module (3), the first described electric capacity C
1one end is connected to switch element and the second inductance L
2between, the other end is connected with alternating current source (1), and described switch element is diode D
1or triode S.
5. a kind of civil power according to claim 2 is to the radio energy transmission system of on-vehicle battery bag, it is characterized in that, described wireless data transmission module (9) and receiving terminal data acquisition module (8) adopt Zigbee or DSRC to carry out the wireless transmission of data, described controller module (12) is strong timing controller, comprise CPLD, FPGA or high speed MCU, described switch drive module (14) is four roads or five road independent electrical isolation drive chips, and described phase mismatch detection module (11) comprises phase discriminator chip.
6. a kind of civil power according to claim 1 is to the radio energy transmission system of on-vehicle battery bag, it is characterized in that, described magnetic energy for emission module (4) and magnetic energy receiver module (5) are formed by resonant network, comprise LCL topology and LC series topology, and resonance frequency is identical with the operating frequency of H bridge inversion module (3), described high voltage power battery module (7) is electrokinetic cell bag.
7. a kind of civil power according to claim 4 is to the radio energy transmission system of on-vehicle battery bag, it is characterized in that, described switch element is power MOS pipe, pliotron or IGBT.
8. apply civil power as claimed in claim 1 or 2 to a control method for the radio energy transmission system of on-vehicle battery bag, it is characterized in that, comprise the following steps:
1) after system electrification, controller module produces excitation by H bridge inversion module to magnetic energy for emission module, corresponding system response is measured by receiving terminal data acquisition module, the size of the mutual inductance M between the mode On-line Estimation magnetic energy for emission module of averaging with repetitive measurement and magnetic energy receiver module, and formulate charging strategy;
2) according to the charging strategy formulated, controller module is worked by corresponding control mode control H bridge inversion module, the current waveform inputting inductance L 1 in accurate source of resistance module is controlled by the ratio of the same bridge arm direct pass time in setting H bridge inversion module and non-straight-through time, half-wave voltage waveform after making it follow the tracks of commercial power rectification, and electricity is filled with in high voltage power battery module simultaneously;
3) during system worked well, transmitting terminal data acquisition module and receiving terminal data acquisition module are sampled to the resonant capacitor voltage in magnetic energy for emission module and magnetic energy receiver module respectively, guarantee that it does not exceed the maximum withstand voltage of resonant capacitance, and resonance current size in resonant cavity can be calculated according to the resonant capacitor voltage of sampling;
4) when charging current needed for high voltage power battery module changes, controller module regulates H bridge inversion module by switch drive module, improve or reduce in accurate source of resistance module and input sawtooth current envelope amplitude in inductance L 1, to meet high voltage power charging battery module demand;
5) controller module detects output square-wave voltage and the sine-wave current waveform of H bridge inversion module by phase mismatch detection module, judge whether to occur phase mismatch phenomenon, if so, then improve or reduce system operating frequency until phase mismatch phenomenon disappears.
9. a kind of civil power according to claim 8 is to the control method of the radio energy transmission system of on-vehicle battery bag, it is characterized in that, described step 2) in corresponding control mode comprise basic control mode and free harmonic vibration control mode is led directly in phase shift, described basic control mode comprises phase shifting control and straight-through control, described phase shift is led directly to free harmonic vibration control mode and is controlled for adding free harmonic vibration in basic control mode, described phase shifting control is for realizing the Sofe Switch state of propons arm switch pipe, described straight-through control is realized by the conducting simultaneously of same brachium pontis switching tube or the conducting simultaneously of front-rear axle arm switch pipe.
10. a kind of civil power according to claim 9 is to the control method of the radio energy transmission system of on-vehicle battery bag, it is characterized in that, the time sequence status in described basic control mode is:
In t0 ~ t1 moment: switch S 1 turns off, now switch S 3 is still in conducting state, and in magnetic energy for emission module 4, resonance topological forces electric current to form circulation in switch S 3 with the body diode of switch S 2;
T1 ~ t2 moment: flow through electric current in switch S 2 body diode, now S2 opens, and achieves no-voltage conducting;
T2 ~ t3 moment: switch S 4 conducting, now switch S 3 and switch S 4 conducting simultaneously, realize straight-through control, in accurate source of resistance module 2, electric capacity C1 is charged to inductance L 2 by S3 and S4, and electric capacity C2 and alternating current source 1 are charged to inductance L 1 by S3 and S4;
In t3 ~ t4 moment: switch S 3 turns off, straight-through control is terminated, and H bridge inversion module 3 exports losing side power signal, inductance L 1, electric capacity C2, alternating current source in accurate source of resistance module 2, and electric capacity C1 and inductance L 2 one in the same way H-bridge circuit are powered, and play boosting;
In t4 ~ t5 moment: switch S 2 turns off, H bridge inversion module 3 output voltage is 0, is continued until that t5 moment half harmonic period terminates;
T5 ~ t7 moment: the course of work is identical with t0 to the t2 section course of work.
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