The utility model content
In view of this, a kind of electric car travel increasing device that the utility model provides, the flying power of the propulsion source of raising battery-driven car that can be effectively, and the electric energy that electric power generation produces can effectively reclaim drag the time.
A kind of electric car travel increasing device that the utility model provides comprises:
The electrical source of power detection module is used for gathering power supply voltage and supply current signal and the output of electrical source of power;
Increase the journey power module, be used for to receive power supplying control signal, when excessive or power supply voltage reaches Minimum Acceptable Value when the electrical source of power supply current, increase the journey power module and power to battery-driven car, when electric vehicle brake brake, be used for accepting the electric energy of motor generation;
Increase the process control module, be used for receiving voltage and the current signal of the output of electrical source of power detection module, to increasing journey power module output power supplying control signal, when electric vehicle brake is braked, be used for receiving speed-slackening signal and increase the electric energy that the journey power module is accepted the motor generation to increasing journey power module output feed control signal, controlling;
Further, the described journey power module that increases comprises and increases journey power supply, the first field effect transistor Q1, the second diode D2, the 3rd resistance R 3, the 4th resistance R 4, the second field effect transistor Q2, the 3rd diode D3 and current sensor II;
The described positive pole of journey power supply that increases is by the 3rd resistance R 3 and the rear ground connection of the 4th resistance R 4 series connection, the source electrode of described the first field effect transistor Q1 is connected to the positive pole that increases the journey power supply, the drain electrode of described the first field effect transistor Q1 is connected to the feedback electric energy mouth, the positive pole of described the second diode D2 is connected to the source electrode of the first field effect transistor Q1, the negative pole of the second diode D2 is connected to the first field effect transistor Q1 drain electrode, the source electrode of described the second field effect transistor Q2 is connected to the negative pole that increases the journey power supply, the grounded drain of the second field effect transistor Q2, the positive pole of the 3rd diode D3 is connected to the source electrode of the second field effect transistor Q2, the negative earth of the 3rd diode D3, described current sensor II is connected to the negative pole that increases the journey power supply, and the described journey power supply that increases is the lithium cell group;
Further, described electrical source of power detection module comprises the first diode D1, the first resistance R 1, the second resistance R 2 and current sensor I;
Described the first resistance R 1 and 2 series connection rear of the second resistance R are terminated at the positive pole of electrical source of power, other end ground connection, the positive pole of described the first diode D1 is connected to the positive pole of electrical source of power, the negative pole of the first diode D1 is connected to the drain electrode of the first field effect transistor Q1, and described current sensor I is connected to the negative pole of electrical source of power;
Further, the described process control module that increases comprises eight terminals, the described the first terminal A1 that increases the process control module is connected between the first resistance R 1 and the second resistance R 2, the second terminal A2 is connected between the 3rd resistance R 3 and the 4th resistance R 4, the 3rd terminal A3 is used for the current signal that increases the journey power supply of received current sensor II output, the 4th terminal A4 is connected to the grid of the second field effect transistor Q2, Five-terminals A5 is connected to the grid of the first field effect transistor Q1, the 6th terminal A6 is used for receiving the speed-slackening signal of battery-driven car brake pedal output, the 7th terminal A7 horsepower output display, the 8th terminal A8 are used for the current signal of the electrical source of power of received current sensor I output;
Further, also comprise display module, its input end is connected to the 7th terminal A7 that increases the process control module, is used for showing the power consumption of electrical source of power and power consumption and the feed power that increases the journey power supply;
Further, the described journey power supply that increases equates with the rated voltage of electrical source of power;
Further, the described process control module that increases is micro controller system and corresponding control circuit thereof.
The beneficial effects of the utility model are: the utility model adopts and increases the journey power supply; improve more than 50% so that the travelled distance of the mileage that travels of battery-driven car during with the distance increasing unit that do not use the utility model to provide compared; travel at urban highway; because drag is more frequent; the feedback electric energy that motor produces can make the travelled distance of battery-driven car and originally compare increase more than 10%; and the electrical source of power of battery-driven car with increase journey power supply self-equalizing under large electric current condition of power supply; so that the tractive performance of whole electric vehicle significantly improves; effectively protect electrical source of power; prevent the use of electrical source of power overload; prolong the service life of electrical source of power; and circuit structure of the present utility model is simple, good stability; be easy to realize, with low cost.
The specific embodiment
Fig. 1 is the schematic circuit diagram of the utility model when not being linked in the power system of electric automobile, Fig. 2 is the schematic circuit diagram after the utility model is linked in the power system of electric automobile, Fig. 3 is the power supply equivalent schematic diagram that the utility model increases the journey power supply in the course of the work, Fig. 4 is the equivalent schematic diagram of the utility model when increasing in the course of the work the journey power supply and receiving feed, Fig. 5 is the control flow chart of electric car travel increasing device of the present utility model, as shown in the figure, a kind of electric car travel increasing device that the utility model provides, comprise: the electrical source of power detection module is used for gathering power supply voltage and supply current signal and the output of electrical source of power 1; Increase the journey power module, be used for to receive power supplying control signal, when excessive or power supply voltage reaches Minimum Acceptable Value when electrical source of power 1 supply current, increase the journey power module and power to battery-driven car, when electric vehicle brake brake, be used for accepting the electric energy of motor 9 generations; Increase the process control module, be used for receiving voltage and the current signal of the output of electrical source of power detection module, to increasing journey power module output power supplying control signal, when electric vehicle brake is braked, be used for receiving speed-slackening signal and increase the electric energy that the journey power module is accepted motor 9 generations to increasing journey power module output feed control signal, controlling; The utility model adopts and increases the journey power supply; improve more than 50% so that the travelled distance of the mileage that travels of battery-driven car when the distance increasing unit that provides of the present utility model is not provided compared; travel at urban highway; because drag is more frequent; the feedback electric energy that motor produces can make the travelled distance of battery-driven car and originally compare increase more than 10%; and the electrical source of power of battery-driven car with increase journey power supply self-equalizing under large electric current condition of power supply; so that the tractive performance of whole electric vehicle significantly improves; effectively protect electrical source of power; prevent the use of electrical source of power overload; prolong the service life of electrical source of power; and circuit structure of the present utility model is simple, good stability; be easy to realize, with low cost.
In the present embodiment, the described journey power module that increases comprises and increases journey power supply 4, the first field effect transistor Q1, the second diode D2, the 3rd resistance R 3, the 4th resistance R 4, the second field effect transistor Q2, the 3rd diode D3 and current sensor II 3;
The described positive pole of journey power supply 4 that increases is by the 3rd resistance R 3 and the rear ground connection of the 4th resistance R 4 series connection, the source electrode of described the first field effect transistor Q1 is connected to the positive pole that increases the journey power supply, the drain electrode of described the first field effect transistor Q1 is connected to the feedback electric energy mouth, as shown in Figure 2, the drain electrode of the first field effect transistor Q1 is connected to the terminal B1 of electric machine controller 6, the terminal B1 of electric machine controller 6 conduct when electric power generation increases journey power supply 4 feedback electric energy mouths, when electrical source of power 1 and when increasing journey power supply 4 and powering, terminal B1 is as the electric energy input end of motor 9, and the electric energy that motor 9 produces during drag feeds back to by the first field effect transistor Q1 after via the terminal B1 of electric machine controller 6 and increases in the journey power supply 4.The positive pole of described the two or two utmost point D2 is connected to the source electrode of the first field effect transistor Q1, the negative pole of the second diode D2 is connected to the first field effect transistor Q1 drain electrode, the source electrode of described the second field effect transistor Q2 is connected to the negative pole that increases journey power supply 4, the grounded drain of the second field effect transistor Q2, the positive pole of the 3rd diode D3 is connected to the source electrode of the second field effect transistor Q2, the negative earth of the 3rd diode D3, described current sensor II 3 is connected to the negative pole that increases journey power supply 4, the described journey power supply 4 that increases is the lithium cell group, and the described journey power supply 4 that increases equates with the rated voltage of electrical source of power 1; When excessive or power supply voltage is lower than minimum permission magnitude of voltage at the supply current of electrical source of power 1; the described journey power module that increases is outwards powered; can effectively protect electrical source of power 1; and effectively having prolonged the travelled distance of battery-driven car, described the second diode D2 and the 3rd diode D3 are can be by the low pressure drop diode of large electric current.
In the present embodiment, described electrical source of power detection module comprises the first diode D1, the first resistance R 1, the second resistance R 2 and current sensor I 2;
Described the first resistance R 1 and 2 series connection rear of the second resistance R are terminated at the positive pole of electrical source of power 1, other end ground connection, the positive pole of described the first diode D1 is connected to the positive pole of electrical source of power 1, the negative pole of the first diode D1 is connected to the drain electrode of the first field effect transistor Q1, the first diode D1 be used for preventing when increase that journey power supply 4 is powered or when increasing journey power supply 4 and accepting feed electrical source of power accept electric energy, described current sensor I 2 is connected to the negative pole of electrical source of power 1; Whether the magnitude of voltage that described electrical source of power detection module can detect the supply current of electrical source of power 1 and electrical source of power 1 in real time is sent to and increases the process control module, power thereby control increases the journey power module.
In the present embodiment, the described process control module 5 that increases is micro controller system and corresponding control circuit thereof, and micro controller system and control circuit thereof are prior art, do not repeat them here; The described process control module 5 that increases comprises eight terminals, the described the first terminal A1 that increases process control module 5 is connected between the first resistance R 1 and the second resistance R 2, the second terminal A2 is connected between the 3rd resistance R 3 and the 4th resistance R 4, the 3rd terminal A3 is used for the current signal that increases journey power supply 4 of received current sensor II 3 outputs, the 4th terminal A4 is connected to the grid of the second field effect transistor Q2, Five-terminals A5 is connected to the grid of the first field effect transistor Q1, the 6th terminal A6 is used for receiving the speed-slackening signal of battery-driven car brake pedal 7 outputs, in Fig. 2, the 6th terminal A6 is connected to the speed-slackening signal mouth of brake pedal 7, and the output of the speed-slackening signal of brake pedal 7 also is connected to the speed-slackening signal receiving end of electric machine controller 6, be terminal B3, when brake pedal 7 has speed-slackening signal output, increasing process control module 5 output control signals opens the first field effect transistor Q1, electric machine controller 6 makes motor 9 generatings simultaneously, be sent to by the electric energy output end (terminal B1) of electric machine controller 6 and increase the journey power module, thereby finish the recovery of electric energy, the terminal B3 ground connection of brake controller 6; The 7th terminal A7 horsepower output display, the 8th terminal A8 are used for the current signal of the electrical source of power 1 of received current sensor I 2 outputs;
In the present embodiment, described battery-driven car increases range controller and also comprises display panel, and its input end is connected to the 7th terminal A7 that increases the process control module, the power that is used for showing electrical source of power 1 and increases journey power supply 4; Described display panel 8 can show electrical source of power 1 and increase the power consumption of journey power supply 4, feedback power, also show them simultaneously who in work, whether under-voltage, show control by increasing range controller 5; Show "+XKW " when current sensor II 3 is output as on the occasion of, display panel 8, wherein "+" is power consumption, and X is magnitude of power, and KW is power unit, and when current sensor II 3 is output as negative value, display panel 8 is shown as " XKW ", and wherein "-" is feedback electric energy.
Fig. 3 is power supply equivalent circuit theory figure of the present utility model, when battery-driven car initially travels, by electrical source of power 1 with increase journey power supply 4 and power simultaneously, when the electric quantity consumption that increases journey power supply 4 specified electric quantity 10% the time, increase the process control module controls and increase journey power supply 4 and stop power supply, the electric energy of feedback provides storage space during for drag; When electrical source of power 1 is crossed when low at overcurrent or power supply voltage, increasing range controller 5 control increases journey power supply 4 and begins power supply, equivalent resistance when wherein R5 is the second field effect transistor Q2 conducting, I1 is the supply current of electrical source of power 1, I2 is the supply current that increases journey power supply 4, and electric machine controller 6 resulting supply currents are I=I1+I2.
Fig. 4 is the equivalent schematic diagram of the utility model when increasing in the course of the work the journey power supply and receiving feed, namely be the equivalent schematic diagram of motor of the present utility model when carrying out feed, equivalent resistance when wherein R6 is the first field effect transistor Q1 conducting, the electric energy that motor 9 produces is input to through electric machine controller 6 and increases in the journey power supply 4.
Principle of work of the present utility model is:
The current sensor I of a electrical source of power detection module detects the supply current of electrical source of power, and when the mouth of current sensor I had positive analog signal output, the current sensor I was sent to the supply current signal of electrical source of power and increases the process control module;
B increases the process control module with the supply current signal of electrical source of power and the maximum allowed current value contrast of electrical source of power, when the maximum allowed current value that surpasses electrical source of power or when increasing power supply voltage that the process control module detects electrical source of power and being lower than minimum permission magnitude of voltage, increase the process control module to the second field effect transistor Q2 output control signal that increases the journey power module;
The grid that c increases the second field effect transistor Q2 of journey power module receives conducting behind the control signal that increases the output of process control module, increase the journey power supply and begin power supply, after the supply current of electrical source of power is got back to normal value, increase process control module output control signal and turn-off the second field effect transistor Q2;
D increases the journey power supply and stops power supply;
In the present embodiment, also comprise step e between step c and the steps d, described step e is: when increasing the process control module and detect the voltage that increases the journey power supply and reach the minimum operational voltage value of setting, increase process control module output control signal and turn-off the second field effect transistor Q2;
In the present embodiment, comprise step f: detect the speed-slackening signal that brake pedal is exported when increasing the process control module, increase the process control module to the first field effect transistor Q1 output control signal, open the first field effect transistor Q1, brake pedal is exported control signal to electric machine controller simultaneously, motor begins generating, increases the journey power supply and receives the electric energy that motor produces, thereby finish the recovery of electric energy.
In the present embodiment, electrical source of power 1 is to set according to different battery pack with the minimum permission magnitude of voltage that increases journey power supply 4, and the minimum permission magnitude of voltage of generally demarcating according to manufacturer is set.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.