CN104753100A - Vehicle-mounted solar charger for electric vehicle - Google Patents
Vehicle-mounted solar charger for electric vehicle Download PDFInfo
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- CN104753100A CN104753100A CN201310738294.3A CN201310738294A CN104753100A CN 104753100 A CN104753100 A CN 104753100A CN 201310738294 A CN201310738294 A CN 201310738294A CN 104753100 A CN104753100 A CN 104753100A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a vehicle-mounted solar charger for an electric vehicle. The electric vehicle comprises a solar battery and a vehicle-mounted power battery. The vehicle-mounted solar charger comprises a charging system, a control system, a power module, a solar battery temperature detection module, a voltage sampling module, and a current sampling module. The charging system comprises an input protection module, an input filter module, a boost conversion module, an output filter module, and an output protection module, all of which are sequentially connected in series. The control system is connected with the charging system. The control system comprises a microcontroller module, a TL494 control module, and a drive module. The power module comprises a first power module and a second power module. The solar battery temperature detection module is connected with the solar battery and the microcontroller module. The beneficial effect is that the vehicle-mounted solar charger for an electric vehicle with the advantages of high tracking response speed, large range of output voltage and stable performance is provided.
Description
Technical field
The present invention relates to Solar use and electric automobile power battery charging technology, particularly relate to a kind of Vehicular solar charger used for electric vehicle.
Background technology
At present, global energy crisis and environmental pollution, make the people of various countries all make great efforts to seek and development of new clean energy resource.Solar energy, as the one of new cleaning fuel, is the energy of renewable sustainable utilization, its aboundresources, again without the need to transport, to environment without any pollution, has the superiority that other resources are incomparable.
Along with the development of society, automobile becomes the most general vehicles, also becomes the family that a kind of requirement has come into huge numbers of families ordinary citizen gradually, thus makes energy crisis and environmental pollution more serious, and the use of electric automobile becomes inevitable.And solar electrically propelled vehicle directly utilizes especially, become a bright spot in electric automobile.
Solar electrically propelled vehicle is a kind of novel environment friendly vehicle, there is safety, convenient, expense is low, energy savings, the advantage such as pollution-free, motor vehicle can be replaced in a lot of fields to use, can be used as industrial and mineral, enterprise, terminal transfer car, also can be used as sightseeing bus, the wounded's transfer cart etc. used in family's recreation vehicle, traffic patrolling car and various stadium, development prospect is wide.Solar energy is converted to electric energy by its operator principle exactly, compensates charging to the vehicle power battery of electric motor car, with the part energy consumed in supplementary vehicle travel process, thus extends running time and the mileage of vehicle.
A key component of solar electric vehicle design is exactly the design problem of solar charging motor.Because solar charging motor not only completes the important task converting electric energy to, and vehicle power battery is provided to the Charge Management of intelligence.Current solar charger and inverter huge number, but the overwhelming majority is all for electric energy being followed the tracks of inversion under solar cell inactive state, or for the static charging such as handheld device of micropower, follow the tracks of and response speed slow, tracking progress is low, output voltage range kills, and is blocked or angle change causes the Rapid Variable Design of solar energy and by the situation of charging onboard power battery voltage wide fluctuations (one group of rated voltage is that its voltage change range of vehicle power battery of 72V can reach 30V-96V) when cannot adapt to vehicle rapid movement.Tradition relatively high power more than solar inverter and charger expensive, be used in cost in electric motor car too high, car load cost performance is reduced, and the market competitiveness is low.Therefore low cost, tracking response speed are fast, output voltage range large, the Vehicular solar charger of stable performance becomes one of technical bottleneck of restriction solar electrically propelled vehicle.
Summary of the invention
In view of the above-mentioned problems in the prior art, the object of the invention is to address the deficiencies of the prior art, provide that a kind of tracking response speed is fast, the Vehicular solar charger used for electric vehicle of the large and stable performance of output voltage range.
The invention provides a kind of Vehicular solar charger used for electric vehicle, described electric automobile comprises solar cell and vehicle mounted dynamic battery, comprise charging system, described charging system is connected with vehicle mounted dynamic battery with solar cell respectively, for obtaining solar energy from described solar cell and charging to described vehicle mounted dynamic battery, described charging system comprises input protection module, input filter module, boosting inverter module, output filtering module and the output protection module of contacting successively, control system, described control system is connected with described charging system, for to the control of described charging system in charging process, described control system comprises micro controller module, TL494 control module and driver module, described TL494 control module is connected with described driver module with described micro controller module respectively, described driver module is connected with described boosting inverter module, described micro controller module is used for transmitting control signal to described TL494 control module, described TL494 control module sends it to described driver module for receiving described control signal and producing pwm control signal simultaneously, described driver module is for the pwm control signal that receives TL494 control module and send and convert thereof into drive singal and control described boosting inverter module and carry out work, power module, described power module comprises the first power module and second source module, described first power module is connected with described TL494 control module with described driver module respectively, for powering to described driver module and described TL494 control module, described second source module and described micro controller module are connected to it and power, and solar cell temperature detecting module, described solar cell temperature detecting module is connected with described micro controller module with described solar cell respectively, and whether the temperature for described solar cell of sampling meets for vehicle mounted dynamic battery carries out the condition of charging, voltage sample module, described voltage sample module comprises input voltage sampling module and output voltage sampling module, described input voltage sampling module respectively with the output of described input filter module just, negative pole and described micro controller module are connected, described output voltage sampling module respectively with the output of described output filtering module just, negative pole and described micro controller module are connected, described input voltage sampling module is for sampling through the input voltage of described input filter module, described output voltage sampling module is for sampling through the output voltage of described output filtering module, and current sample module, described current sample module comprises input current sampling module and described output current sampling module, described input current sampling module is arranged in the output circuit of described input filter module, for the output current of described input filter module of sampling, described output current sampling module is arranged in the output circuit of described output filtering module, for the output current of described output filtering module of sampling.
Further, described micro controller module comprises microcontroller, start and select resistance R045, crystal oscillator X1, electric capacity C038, C039 and VDD, VDDA and GND, microcontroller is by AD sample port PA2, PA5, PA6 and PB1 respectively with described input current sampling module, output voltage sampling module, output current sampling module and input voltage sampling module are connected, to obtain input current Ii, output voltage Uo, output current Io and input voltage Ui, described microcontroller is connected with described TL494 control module by DA output port PA4, work is carried out for exporting control signal and then controlling described TL494 control module.
Further, described TL494 control module is connected with described output voltage sampling module with described input current sampling module respectively, the electric current that the control signal sent by described micro controller module and described input current sampling module are sampled compares and forms current loop with PI computing and control, and/or by the sampled voltage of vehicle power battery charging voltage maximum benchmark and output voltage sampling module and PI computing coating-forming voltage loop being controlled, export pwm control signal to described driver module according to two kinds of results controlled.
Further, described driver module comprises resistive module, difference amplifier module and diode (led) module, described resistive module comprises R019, R020, R021, R022, R023, R024, R025 and R026, described difference amplifier module comprises Q004, Q005, Q006 and Q007, described diode (led) module comprises D002 and D003, described driver module is connected with described TL494 control module with resistance R020 respectively by resistance R019, for receiving the PWM+ control signal and PWM-control signal that described TL494 control module sends, described R019, R021, Q004, R023, D002, R025 and Q006 forms power amplification circuit and is connected with described boosting inverter module, exports DRV+ drive singal and drive boosting inverter module to carry out work, described R020 after being amplified by PWM+, R022, Q005, R024, D003, R026 and Q007 forms power amplification circuit and is connected with described boosting inverter module, exports DRV-drive singal and drive boosting inverter module to carry out work after being amplified by PWM-.
Further, described boosting inverter module comprises resistive module, inductor module, capacitance module and difference amplifier module, described resistive module comprises resistance R001, R002, R003 and R004, described inductor module comprises inductance L 001 and L002, described capacitance module comprises electric capacity C005 and C005, described difference amplifier module comprises differential amplifier Q001 and Q002, described boosting inverter module is connected with described driver module by the grid of described Q001 with Q002, for receiving DRV+ and the DRV-drive singal that described driver module sends, described Q001, L001, R003, C005 and D001 forms the first booster circuit, by the change of DRV+ drive singal PMM duty ratio, the voltage that described filtration module inputs is elevated to different magnitudes of voltage and exports to described output filtering module, described Q002, L002, R004, C005 and D001 forms the second booster circuit, by the change of DRV-drive singal PMM duty ratio, the voltage that described filtration module inputs is elevated to different magnitudes of voltage and exports to described output filtering module.
Further, described input current sampling module comprises Hall element U002, capacitance module, resistive module and operational amplifier, described capacitance module comprises electric capacity C008, C009, C027 and C028, described resistive module comprises resistance R027, R028, R029 and R030, described Hall element U002 is serially connected between input filter module and boosting inverter module, the current value collected is converted to small signal value and is exported by Vlout pin by described Hall element U002, and positive input i.e. the 3rd pin of operational amplifier U006A is connected to by resistance R029, described operational amplifier U006A, electric capacity C028, resistance R030, resistance R027, resistance R028 and electric capacity C027 constitutes 2 rank filter amplification circuit, the small voltage signal filtering exported by Hall element U002 obtains output circuit sampled signal Ii after amplifying, and export to described micro controller module and described TL494 control module.
The advantage that the present invention has and beneficial effect are: described Vehicular solar charger used for electric vehicle is provided with described sunlight illumination detection module, the sudden change of timely sampling sunlight regulates rapidly solar cell fan-out capability, and according to sunlight illumination, the power output of solar cell is set to rapidly near maximum power point, and then carry out tracking adjustment with constant voltage process or incremental conductance method, substantially reduce tracking time; Described micro controller module adopts the method for pulling back fast to regulate, sample rapidly when sampling solar array voltage bust or jumping pull back fast (directly reducing or increase certain power output) solar cell is adjusted near maximum power point, and then carry out tracking adjustment with constant voltage process or incremental conductance method, improve the response speed in vehicle operation; Described electric automobile vehicle-mounted solar recharging machine is with low cost, tracking response speed is fast, input voltage (20-50V) and output voltage (30V-96V) wide ranges, well adapted to that solar cell voltage change range under different light is wide, electric automobile different operating state electrokinetic cell scope range of the fluctuation of voltage be large, the features such as solar energy change is fast in vehicle traveling process, be applicable to the promotion and application in electric automobile field.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the Vehicular solar charger used for electric vehicle of the present embodiment;
Fig. 2 is the circuit diagram of micro controller module in Fig. 1;
Fig. 3 is the circuit diagram of TL494 control module in Fig. 1;
Fig. 4 is the circuit diagram of driver module in Fig. 1;
Fig. 5 is the circuit diagram of boosting inverter module in Fig. 1;
Fig. 6 is the circuit diagram of input current sampling module in Fig. 1.
Embodiment
The present invention is further illustrated with specific embodiment below with reference to accompanying drawings.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6: the one Vehicular solar charger used for electric vehicle of the embodiment of the present invention, described electric automobile comprises solar cell 21 and vehicle mounted dynamic battery 22, and described Vehicular solar charger used for electric vehicle comprises:
Charging system, described charging system is connected with vehicle mounted dynamic battery 22 with solar cell 21 respectively, for obtaining solar energy from described solar cell 21 and charging to described vehicle mounted dynamic battery 22, described charging system comprises input protection module 1, input filter module 2, boosting inverter module 3, output filtering module 4 and the output protection module 5 of contacting successively;
Control system, described control system is connected with described charging system, for to the control of described charging system in charging process, described control system comprises micro controller module 12, TL494 control module 11 and driver module 10, described TL494 control module 11 is connected with described driver module 10 with described micro controller module 12 respectively, described driver module 10 is connected with described boosting inverter module 3, described micro controller module 12 is for transmitting control signal to described TL494 control module 11, described TL494 control module 11 sends it to described driver module 10 for receiving described control signal and producing pwm control signal simultaneously, described driver module 10 is for the pwm control signal that receives TL494 control module 11 and send and convert thereof into drive singal and control described boosting inverter module 3 and carry out work,
Power module, described power module comprises the first power module 13 and second source module 14, described first power module 13 is connected with described TL494 control module 11 with described driver module 10 respectively, for powering to described driver module 10 and described TL494 control module 11, described second source module 14 is connected to it with described micro controller module 12 and powers;
Solar cell temperature detecting module 18, described solar cell temperature detecting module 18 is connected with described micro controller module 12 with described solar cell 21 respectively, and whether the temperature for described solar cell 21 of sampling meets for described vehicle mounted dynamic battery 22 carries out the condition of charging;
Voltage sample module, described voltage sample module comprises input voltage sampling module 6 and output voltage sampling module 8, described input voltage sampling module 6 respectively with the output of described input filter module 2 just, negative pole and described micro controller module 12 are connected, described output voltage sampling module 8 respectively with the output of described output filtering module 4 just, negative pole and described micro controller module 12 are connected, described input voltage sampling module 6 is for sampling through the input voltage of described input filter module 2, described output voltage sampling module 8 is for sampling through the output voltage of described output filtering module 4, and
Current sample module, described current sample module comprises input current sampling module 7 and described output current sampling module 9, described input current sampling module 7 is arranged in the output circuit of described input filter module 2, for the output current of described input filter module 2 of sampling, described output current sampling module 9 is arranged in the output circuit of described output filtering module 4, for the output current of described output filtering module 4 of sampling.
As the preferred implementation of above-described embodiment, as shown in Figure 2, described micro controller module comprises microcontroller, start and select resistance R045, crystal oscillator X1, electric capacity C038, C039 and VDD, VDDA and GND, microcontroller is by AD sample port PA2, PA5, PA6 and PB1 respectively with described input current sampling module, output voltage sampling module, output current sampling module and input voltage sampling module are connected, to obtain input current Ii, output voltage Uo, output current Io and input voltage Ui, described microcontroller is connected with described TL494 control module by DA output port PA4, work is carried out for exporting control signal and then controlling described TL494 control module
As the preferred implementation of above-described embodiment, as shown in Figure 3, described TL494 control module 11 is connected with described output voltage sampling module 8 with described input current sampling module 7 respectively, the electric current that the control signal sent by described micro controller module 12 and described input current sampling module 7 are sampled compares and forms current loop with PI computing and control, and/or by the sampled voltage of vehicle power battery charging voltage maximum benchmark and output voltage sampling module 8 and PI computing coating-forming voltage loop are controlled, pwm control signal is exported to described driver module 10 according to two kinds of results controlled.
As the preferred implementation of above-described embodiment, as shown in Figure 4, described driver module 10 comprises resistive module, difference amplifier module and diode (led) module, described resistive module comprises R019, R020, R021, R022, R023, R024, R025 and R026, described difference amplifier module comprises Q004, Q005, Q006 and Q007, described diode (led) module comprises D002 and D003, described driver module 10 is connected with described TL494 control module 11 with resistance R020 respectively by resistance R019, for receiving the PWM+ control signal and PWM-control signal that described TL494 control module 11 sends, described R019, R021, Q004, R023, D002, R025 and Q006 forms power amplification circuit and is connected with described boosting inverter module 3, exports DRV+ drive singal and drive boosting inverter module to carry out work, described R020 after being amplified by PWM+, R022, Q005, R024, D003, R026 and Q007 forms power amplification circuit and is connected with described boosting inverter module, exports DRV-drive singal and drive boosting inverter module to carry out work after being amplified by PWM-.
As the preferred implementation of above-described embodiment, as shown in Figure 5, described boosting inverter module 3 comprises resistive module, inductor module, capacitance module and difference amplifier module, described resistive module comprises resistance R001, R002, R003 and R004, described inductor module comprises inductance L 001 and L002, described capacitance module comprises electric capacity C005 and C005, described difference amplifier module comprises differential amplifier Q001 and Q002, described boosting inverter module is connected with described driver module by the grid of described Q001 with Q002, for receiving DRV+ and the DRV-drive singal that described driver module sends, described Q001, L001, R003, C005 and D001 forms the first booster circuit, by the change of DRV+ drive singal PMM duty ratio, the voltage that described filtration module inputs is elevated to different magnitudes of voltage and exports to described output filtering module, described Q002, L002, R004, C005 and D001 forms the second booster circuit, by the change of DRV-drive singal PMM duty ratio, the voltage that described filtration module inputs is elevated to different magnitudes of voltage and exports to described output filtering module.
As the preferred implementation of above-described embodiment, as shown in Figure 6, described input current sampling module 7 comprises Hall element U002, capacitance module, resistive module and operational amplifier, described capacitance module comprises electric capacity C008, C009, C027 and C028, described resistive module comprises resistance R027, R028, R029 and R030, described Hall element U002 is serially connected between input filter module and boosting inverter module, the current value collected is converted to small signal value and is exported by Vlout pin by described Hall element U002, and be connected to positive input i.e. the 3rd pin of operational amplifier U006A by resistance R029, described operational amplifier U006A, electric capacity C028, resistance R030, resistance R027, resistance R028 and electric capacity C027 constitutes 2 rank filter amplification circuit, and the small voltage signal filtering exported by Hall element U002 obtains output circuit sampled signal Ii after amplifying, and exports to described micro controller module and described TL494 control module.
As the preferred implementation of above-described embodiment, described Vehicular solar charger used for electric vehicle also comprises display module 20, and described display module 20 is connected with described micro controller module 12, for showing the charge capacity of described vehicle mounted dynamic battery 22 in real time.
As the preferred implementation of above-described embodiment, described Vehicular solar charger used for electric vehicle also comprises sunlight illumination detection module 17, described sunlight illumination detection module 17 is connected with described micro controller module 12, and the sudden change for real-time sampling sunlight regulates the fan-out capability of solar cell simultaneously according to described sudden change.
As the preferred implementation of above-described embodiment, described Vehicular solar charger used for electric vehicle also comprises communication module 15, described microcontroller is connected with described communication module 15, for communicating with external PC 23, fault detection system for automobile 24 or other vehicle mounted electrical apparatus 25 by serial port TX1 with RX1.
As the preferred implementation of above-described embodiment, described Vehicular solar charger used for electric vehicle also comprises human-computer interaction module 16, and described microcontroller is connected with described human-computer interaction module 16 by port PA8, PA9, PA10, PA11, PA12.
The vehicle-mounted solar recharging machine of electric automobile of the present embodiment, the RT pin of described TL494 chip is connected to ground by resistance R016, and the CT pin of described TL494 chip is connected to ground by electric capacity C018, the REF pin of described TL494 chip connects with C021, R017 and 12V, and the other end of C021 and R017 connects with R018, and another section of R018 is connected to GND, R015, C015, C016 proportion of composing integrating circuit, the COMP pin being connected to TL494 realizes electric current loop PI (proportional integral) computing, the reference input of electric current loop is the control signal Ic of microcontroller, be connected to R014 and C017, input current sampled signal Ii is connected to the 2IN+ pin of TL494, the error of Ic and Ii is passed through R015 by TL494, C015, change into the PWM of complementation by pin C1 after the PI (proportional integral computing circuit) of C016 composition carries out computing, C2 exports, and the difference of the error of Ic and Ii causes the difference of PWM duty ratio, thus this PWM is amplified rear drive boosting inverter module adjustable output power by driver module, indirectly change input current Ii, after repeatedly regulating, Ii is by convergence Ic, realize Current adjustment function, R013, C013, C014 proportion of composing integrating circuit, the COMP pin being connected to TL494 realizes Voltage loop PI (proportional integral) computing, the reference input of Voltage loop is be connected to R013 to the output voltage maximum value signal Uomax of power module 1, the 1IN-pin of C014 and TL494, output voltage sampled signal Uo is connected to the 1IN+ pin of TL494, the error of Uomax and Uo is passed through R013 by TL494, C013, change into after the PI (proportional integral computing circuit) that C014 forms carries out computing and the PWM of complementation is exported, and the difference of the error of Uomax and Uo causes the difference of PWM duty ratio, thus this PWM is amplified rear drive boosting inverter module adjustable output power by driver module, indirectly change input current Ii, after repeatedly regulating, convergence Uomax is no more than Uomax by Uo, realize voltage-regulation function (deboost is no more than limit value), the reference input of Voltage loop is output voltage maximum benchmark Umaxref, the size of its value sets according to the vehicle-mounted vehicle mounted dynamic battery maximum voltage of reality, charger output voltage in the whole course of work is made to be no more than this value, in order to avoid damage vehicle mounted dynamic battery, voltage-regulation ring and the acting in conjunction of current regulation loop sampling parallel way, when the equivalent voltage signal of the output reference Ic of electric current loop is less than or equal to Umaxref, electric current loop works, and Voltage loop, without any effect, exports the duty ratio of PWM completely by current loop control, when the equivalent voltage signal of the output reference Ic of electric current loop is greater than Umaxref, Voltage loop works, and electric current loop is without any effect, and the duty ratio exporting PWM is controlled by Voltage loop completely, and electric current loop mainly plays regulatory role, and Voltage loop shields.
The operation principle of the vehicle-mounted solar recharging machine of described electric automobile of the present embodiment is:
1, after this Vehicular solar charger used for electric vehicle powers on, first power module 13 and second source module 14 start respectively and power to described TL494 control module 11 and described micro controller module 12, and described TL494 control module 11 and described micro controller module 12 start immediately; But because the control signal exported when now described micro controller module 12 starts is 0, so described TL494 control module 11 does not export PWM, therefore driver module 10 also can not control boost conversion module 3 and carries out boosting work, whole charging system loop is in pass-through state, system does not carry out boost conversion, and output voltage equals input voltage;
2, after micro controller module 12 powers on, first system initialization is carried out, then input voltage (open circuit voltage Uopen), output voltage and solar cell temperature is obtained by input voltage sampling module 6, output voltage sampling module 8 and solar cell temperature detecting module 18, then judge whether input voltage, output voltage and solar cell temperature meet and start charger condition, meet, start charger, do not meet and then continue circulating sampling input voltage, output voltage and solar cell temperature, repeat to judge, until condition meets; If entry condition meets, first micro controller module 12 uses the open circuit voltage Uopen of 0.78 times to control as target voltage, continue to increase power output and namely increase micro controller module 12 to the control signal of TL494 control module 11, until input voltage is lower than 0.78Uopen, enter normal tracking phase afterwards;
3, micro controller module 12 continues sampled input voltage, electric current, output voltage electric current and solar cell temperature, rapid constant voltage method is selected according to situations such as input voltage and input current power and solar cell temperature, constant speed constant voltage process, disturbance observation, the tracking that a kind of method in incremental conductance method carries out solar cell maximum power point calculates, obtain the value of next control signal, and export to TL494 control module 11, increase in real time to reach or reduce power output, iterative cycles like this, finally make the stable output power of charger near the maximum power point of solar energy, realize the maximization of Energy harvesting,
4, the input current that described TL494 control module 11 obtains to control signal and the input current sampling module 7 of micro controller module 12 in the future compares, and the pwm signal carrying out error to convert to after PI computing a pair complementation gives described driver module 10, this pwm signal to complementation is carried out boost conversion through the MOSFET amplifying rear drive boost conversion module 3 by described driver module 10, after repeatedly PI controls, the input current that the control signal of described micro controller module 12 and input current sampling module 7 obtain is substantially equal, reach poised state, input current is made to equal the output current of described micro controller module 12 expectation, realize the object of software and hardware combined control.
Last it is noted that above-described each embodiment is only for illustration of technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or to wherein partly or entirely technical characteristic carry out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a Vehicular solar charger used for electric vehicle, described electric automobile comprises solar cell and vehicle mounted dynamic battery, it is characterized in that, comprising:
Charging system, described charging system is connected with vehicle mounted dynamic battery with solar cell respectively, for obtaining solar energy from described solar cell and charging to described vehicle mounted dynamic battery, described charging system comprises input protection module, input filter module, boosting inverter module, output filtering module and the output protection module of contacting successively;
Control system, described control system is connected with described charging system, for to the control of described charging system in charging process, described control system comprises micro controller module, TL494 control module and driver module, described TL494 control module is connected with described driver module with described micro controller module respectively, described driver module is connected with described boosting inverter module, described micro controller module is used for transmitting control signal to described TL494 control module, described TL494 control module sends it to described driver module for receiving described control signal and producing pwm control signal simultaneously, described driver module is for the pwm control signal that receives TL494 control module and send and convert thereof into drive singal and control described boosting inverter module and carry out work,
Power module, described power module comprises the first power module and second source module, described first power module is connected with described TL494 control module with described driver module respectively, for powering to described driver module and described TL494 control module, described second source module and described micro controller module are connected to it and power;
Solar cell temperature detecting module, described solar cell temperature detecting module is connected with described micro controller module with described solar cell respectively, and whether the temperature for detecting described solar cell meets for vehicle mounted dynamic battery carries out the condition of charging;
Voltage sample module, described voltage sample module comprises input voltage sampling module and output voltage sampling module, described input voltage sampling module respectively with the output of described input filter module just, negative pole and described micro controller module are connected, described output voltage sampling module respectively with the output of described output filtering module just, negative pole and described micro controller module are connected, described input voltage sampling module is for sampling through the input voltage of described input filter module, described output voltage sampling module is for sampling through the output voltage of described output filtering module, and
Current sample module, described current sample module comprises input current sampling module and described output current sampling module, described input current sampling module is arranged in the output circuit of described input filter module, for the output current of described input filter module of sampling, described output current sampling module is arranged in the output circuit of described output filtering module, for the output current of described output filtering module of sampling.
2. Vehicular solar charger used for electric vehicle according to claim 1, it is characterized in that, described micro controller module comprises microcontroller, start and select resistance R045, crystal oscillator X1, electric capacity C038, C039 and VDD, VDDA and GND, microcontroller is by AD sample port PA2, PA5, PA6 and PB1 respectively with described input current sampling module, output voltage sampling module, output current sampling module and input voltage sampling module are connected, to obtain input current Ii, output voltage Uo, output current Io and input voltage Ui, described microcontroller is connected with described TL494 control module by DA output port PA4, work is carried out for exporting control signal and then controlling described TL494 control module.
3. Vehicular solar charger used for electric vehicle according to claim 1, it is characterized in that, described TL494 control module is connected with described output voltage sampling module with described input current sampling module respectively, the electric current that the control signal sent by described micro controller module and described input current sampling module are sampled compares and forms current loop with PI computing and control, and/or by the sampled voltage of vehicle power battery charging voltage maximum benchmark and output voltage sampling module and PI computing coating-forming voltage loop are controlled, pwm control signal is exported to described driver module according to two kinds of results controlled.
4. Vehicular solar charger used for electric vehicle according to claim 1, it is characterized in that, described driver module comprises resistive module, difference amplifier module and diode (led) module, described resistive module comprises R019, R020, R021, R022, R023, R024, R025 and R026, described difference amplifier module comprises Q004, Q005, Q006 and Q007, described diode (led) module comprises D002 and D003, described driver module is connected with described TL494 control module with resistance R020 respectively by resistance R019, for receiving the PWM+ control signal and PWM-control signal that described TL494 control module sends, described R019, R021, Q004, R023, D002, R025 and Q006 forms power amplification circuit and is connected with described boosting inverter module, exports DRV+ drive singal and drive boosting inverter module to carry out work, described R020 after being amplified by PWM+, R022, Q005, R024, D003, R026 and Q007 forms power amplification circuit and is connected with described boosting inverter module, exports DRV-drive singal and drive boosting inverter module to carry out work after being amplified by PWM-.
5. Vehicular solar charger used for electric vehicle according to claim 1, it is characterized in that, described boosting inverter module comprises resistive module, inductor module, capacitance module and difference amplifier module, described resistive module comprises resistance R001, R002, R003 and R004, described inductor module comprises inductance L 001 and L002, described capacitance module comprises electric capacity C005 and C005, described difference amplifier module comprises differential amplifier Q001 and Q002, described boosting inverter module is connected with described driver module by the grid of described Q001 with Q002, for receiving DRV+ and the DRV-drive singal that described driver module sends, described Q001, L001, R003, C005 and D001 forms the first booster circuit, by the change of DRV+ drive singal PMM duty ratio, the voltage that described filtration module inputs is elevated to different magnitudes of voltage and exports to described output filtering module, described Q002, L002, R004, C005 and D001 forms the second booster circuit, by the change of DRV-drive singal PMM duty ratio, the voltage that described filtration module inputs is elevated to different magnitudes of voltage and exports to described output filtering module.
6. Vehicular solar charger used for electric vehicle according to claim 1, is characterized in that, described input current sampling module comprises Hall element U002, capacitance module, resistive module and operational amplifier, described capacitance module comprises electric capacity C008, C009, C027 and C028, described resistive module comprises resistance R027, R028, R029 and R030, described Hall element U002 is serially connected between input filter module and boosting inverter module, the current value collected is converted to small signal value and is exported by Vlout pin by described Hall element U002, and be connected to positive input i.e. the 3rd pin of operational amplifier U006A by resistance R029, described operational amplifier U006A, electric capacity C028, resistance R030, resistance R027, resistance R028 and electric capacity C027 constitutes 2 rank filter amplification circuit, and the small voltage signal filtering exported by Hall element U002 obtains output circuit sampled signal Ii after amplifying, and exports to described micro controller module and described TL494 control module.
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