CN220500504U - New energy pure electric vehicle self-circulation charging system - Google Patents
New energy pure electric vehicle self-circulation charging system Download PDFInfo
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Abstract
The utility model discloses a self-circulation charging system of a new energy pure electric vehicle, which comprises a transmission half shaft, a unidirectional differential mechanism, a transmission shaft, a generator, a rectifier, a vehicle-mounted charger and a standby battery, wherein the transmission half shaft is connected with the transmission half shaft; the power input end of the generator is in transmission connection with a transmission shaft, the transmission shaft is arranged in the middle of two driven wheels of the new energy pure electric vehicle through a bearing seat, two sides of the transmission shaft are respectively connected with two transmission half shafts through a unidirectional differential mechanism, and the two transmission half shafts are respectively connected with the two driven wheels of the new energy pure electric vehicle; the generator is connected with a standby battery through a rectifier and an on-vehicle charger, and the standby battery is connected with a power supply system of the new energy pure electric vehicle. The utility model can charge the battery pack under the condition that the new energy pure electric vehicle normally runs by acquiring the kinetic energy through the driven wheel of the new energy pure electric vehicle, so that the surplus energy of the new energy pure electric vehicle during running can be recycled to the maximum extent, the defect that the new energy pure electric vehicle cannot be charged during normal running is overcome, and the cruising ability is improved.
Description
Technical Field
The utility model relates to the field of new energy automobiles, in particular to a self-circulation charging system of a new energy pure electric vehicle.
Background
Pure electric vehicle and automobile powered by lithium battery, sodium-sulfur battery, nickel-cadmium battery, ternary lithium battery, etc. Has the advantages of no exhaust emission and environmental protection, and belongs to the encouraging development industry according to the national development planning. With the development of technology, the application of vehicle-mounted batteries such as ternary lithium batteries and the like, the development of new energy pure electric vehicles has matured, and the new energy pure electric vehicles have started to be popularized, so that more environment-friendly and economic transportation means are brought to people for traveling. All vehicle types of the existing new energy pure electric vehicles are provided with an energy recovery system, and the energy recovery system has the function of recovering and charging a battery pack by utilizing surplus energy generated by the new energy pure electric vehicles during downhill or braking; as disclosed in the patent document CN201820627275.1, a "vehicle brake system", and as disclosed in the patent document CN201020004021.8, a "power supply switching and recharging device for electric vehicles". The electric vehicle range extender sold in the market actually uses a diesel type or gasoline type engine to generate power to drive a generator to generate power, and then charges a vehicle-mounted battery pack, and the principle of the range extender is the same as that of a diesel or gasoline and battery hybrid type hybrid vehicle.
The prior art and objective disadvantages:
the existing energy recovery system of the new energy pure electric vehicle has the function of recovering excess energy to charge the battery pack when the new energy pure electric vehicle descends a slope or brakes. The battery pack cannot be charged in the case of normal running. The range extender of the electric motor car sold in the market is another mixed driving mode and can not be charged under the condition that the pure electric motor car normally runs.
Disclosure of Invention
In order to perfect an energy recovery system of a new energy pure electric vehicle, the utility model provides a self-circulation charging system of the new energy pure electric vehicle, which can charge a battery pack under the condition that the new energy pure electric vehicle normally runs, furthest recycle surplus energy and inertial kinetic energy when the new energy pure electric vehicle runs, recycle the energy, overcome the defect that the new energy pure electric vehicle cannot be charged in the normal running process, and promote the endurance capacity of the pure electric new energy vehicle.
The utility model adopts the technical scheme that:
the self-circulation charging system of the new energy pure electric vehicle is in transmission connection with a driven wheel of the new energy pure electric vehicle, and obtains kinetic energy through the driven wheel of the new energy pure electric vehicle, and the self-circulation charging system comprises a transmission half shaft, a unidirectional differential, a transmission shaft, a generator, a rectifier, a vehicle-mounted charger and a standby battery;
the power input end of the power generator is in transmission connection with a transmission shaft, the transmission shaft is arranged in the middle of two driven wheels of the new energy pure electric vehicle through a bearing seat, two sides of the transmission shaft are respectively connected with two transmission half shafts through a unidirectional differential mechanism, and the two transmission half shafts are respectively connected with the two driven wheels of the new energy pure electric vehicle;
the generator is connected with a standby battery through a rectifier and an on-vehicle charger, and the standby battery is connected with a power supply system of the new energy pure electric vehicle.
Further, the generator is a permanent magnet direct current generator or a permanent magnet brushless alternating current generator.
Furthermore, the self-circulation charging system of the new energy pure electric vehicle further comprises a speed stabilizing box, the generator is a low-rotation-speed generator, the power input end of the low-rotation-speed generator is in transmission connection with the power output end of the speed stabilizing box, and the power input end of the speed stabilizing box is in transmission connection with the driven wheel of the new energy pure electric vehicle through a one-way differential mechanism and a transmission half shaft.
Further, the self-circulation charging system of the new energy pure electric vehicle further comprises a gradient sensor, wherein the gradient sensor is arranged on the speed stabilizing box and is electrically connected with the speed stabilizing box.
Furthermore, the self-circulation charging system of the new energy pure electric vehicle further comprises a gearbox, the generator is a high-speed generator, the power input end of the high-speed generator is in transmission connection with the power output end of the gearbox, and the power input end of the gearbox is in transmission connection with two driven wheels of the new energy pure electric vehicle through a unidirectional differential and a transmission half shaft.
Further, the self-circulation charging system of the new energy pure electric vehicle further comprises a transformer, a frequency converter and a voltage stabilizer; the high-rotation-speed generator is connected with the rectifier through the transformer, the frequency converter and the voltage stabilizer in sequence.
Furthermore, the self-circulation charging system of the new energy pure electric vehicle further comprises a universal coupling, and the universal coupling is arranged at the joint of the transmission half shaft and the differential mechanism.
Further, an air pipe is additionally arranged between the generator and the battery of the spare battery and between the generator and the battery of the new energy pure electric vehicle, and a fan and an intelligent electromagnetic valve are arranged on the air pipe.
The beneficial effects of the utility model are as follows:
the self-circulation charging system of the new energy pure electric vehicle can charge the battery pack under the condition that the new energy pure electric vehicle normally runs, furthest recycles surplus energy and inertial kinetic energy when the new energy pure electric vehicle runs, overcomes the defect that the new energy pure electric vehicle cannot be charged in the normal running process, and improves the cruising ability of the pure electric new energy vehicle.
The self-circulation charging system of the new energy pure electric vehicle is in transmission connection with the driven wheel of the new energy pure electric vehicle, kinetic energy is obtained through the driven wheel of the new energy pure electric vehicle, and the energy recovery device of the new energy pure electric vehicle is not influenced, so that the pure electric vehicle can fully utilize the kinetic energy, potential energy and inertial energy of the pure electric vehicle to generate electricity in the running process, and the generated electric energy is converted into driving mileage. In terms of driving mileage, the travel of the pure electric vehicle can be increased by more than 20%, so that the surplus kinetic energy and inertia are effectively and comprehensively utilized.
Drawings
FIG. 1 is a schematic view of the installation position of embodiment 1 of the present utility model;
FIG. 2 is a schematic structural view of embodiment 1 of the present utility model;
FIG. 3 is a schematic diagram of the working principle of embodiment 1 of the present utility model;
FIG. 4 is a schematic structural view of embodiment 2 of the present utility model;
fig. 5 is a schematic diagram of the working principle of embodiment 2 of the present utility model;
FIG. 6 is a schematic structural view of embodiment 3 of the present utility model;
fig. 7 is a schematic diagram of the working principle of embodiment 3 of the present utility model;
in the figure, a driven wheel of a 1-new energy pure electric vehicle, a 2-transmission half shaft, a 3-unidirectional differential, a 4-transmission shaft, a 5-generator, a 6-rectifier, a 7-vehicle-mounted charger, an 8-standby battery, a 9-power supply system of the new energy pure electric vehicle, a 10-speed stabilizing box, a 11-gradient sensor, a 12-gearbox, a 13-transformer, a 14-frequency converter, a 15-voltage stabilizer, a 16-universal coupling, a 17-wind pipe, a 18-fan and a 19-intelligent electromagnetic valve.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
The inertial force refers to the inertia of the object when the object has acceleration, which can be an acceleration stage or a deceleration stage, so that the object has a tendency of keeping the original motion state; in this case, if the object is used as a reference system and a coordinate system is established on the reference system, it appears that an opposite force acts on the object, so that the object is displaced in the coordinate system, and therefore, the inertial force is called. Because inertial forces do not actually exist, only forces that would otherwise accelerate the object actually exist, the inertial forces are also referred to as phantom forces. The concept was proposed because newton's law of motion does not apply in a non-inertial system. However, for the sake of convenience in mind, it can be assumed that in this non-inertial frame, in addition to the forces caused by the interaction, a force is also exerted due to the non-inertial frame: inertial force.
All vehicles include: the fuel oil vehicle and the pure electric vehicle have kinetic energy and inertial kinetic energy in the running process, the inertial kinetic energy is necessarily present when the vehicle moves, the energy consumption is increased when the vehicle accelerates, the kinetic energy is increased, the inertial kinetic energy is also increased along with the increase, and the kinetic energy and the inertial kinetic energy are in direct proportion; the attenuation of inertial kinetic energy and energy consumption is disproportionate when the vehicle is decelerating, and is affected by wind resistance, road conditions, speed, braking force, etc. When the vehicle is suddenly decelerated, the work consumption can be instantaneously reduced from a peak value to a minimum value or zero, while the inertial kinetic energy is slowly reduced by the running speed of the vehicle and the running inertial kinetic energy is consumed under the action of running resistance, and quite surplus inertial kinetic energy is generated at the same time. All road conditions of the vehicle running can not ensure that the running vehicle runs at a constant speed so far, because the vehicle always runs in an accelerating and decelerating state, the work consumption of the vehicle overflows, the loss of inertial kinetic energy in the running process of the vehicle provides a precondition for energy recycling, and how to recycle the energy by overflowing the power consumption and the inertial kinetic energy in the running process of the vehicle is the basis of the prior thought conception and theory of the application.
The existing energy recovery device of the new energy pure electric vehicle is researched and developed by utilizing the characteristic. It is also by a recovery system: a typical electric vehicle energy recovery system is disclosed in patent document CN201510742944.0, which comprises: the energy recovery system mainly comprises a brake pedal, an accelerator controller, an oil outlet control assembly, a driving shaft, a first clutch, a first gear pump, an oil tank, a damping plunger pump, a turbofan, a second gear pump, a storage battery, an auxiliary driving motor, a hydraulic motor and an energy accumulator. The principle is as follows: and the inertial kinetic energy is recycled through a system component when the vehicle is braked.
The self-circulation charging system of the new energy pure electric vehicle is in transmission connection with the driven wheel of the new energy pure electric vehicle, and the kinetic energy is acquired through the driven wheel of the new energy pure electric vehicle; the self-circulation charging system of the new energy pure electric vehicle is in transmission connection with the driven wheel of the new energy pure electric vehicle, so that the self-circulation charging system can be used together with the existing energy recovery system, can recover and utilize surplus energy and inertial energy of the new energy pure electric vehicle during running to the maximum extent, and can better improve recovery capacity.
Example 1
As shown in fig. 1 and 2, the self-circulation charging system of the new energy pure electric vehicle comprises a transmission half shaft 2, a unidirectional differential 3, a transmission shaft 4, a generator 5, a rectifier 6, an on-vehicle charger 7 and a standby battery 8. The power input end of the generator 5 can be in transmission connection with the transmission shaft 4 through a belt, a chain or a gear, the transmission shaft 4 is arranged on a chassis of the vehicle, and the transmission shaft 4 is arranged at the middle of two driven wheels of the new energy pure electric vehicle through a bearing seat; the generator 5 can adopt a permanent magnet direct current generator or a permanent magnet brushless alternating current generator and other generator equipment with smaller volume of commercial products, and a belt pulley, a chain wheel or a gear can be arranged on the transmission shaft 4 to form transmission fit with the generator 5. Two sides of the transmission shaft 4 are respectively connected with two transmission half shafts 2 through a unidirectional differential mechanism 3, and the two transmission half shafts 2 are respectively connected with two driven wheels of the new energy pure electric vehicle, so that the transmission shaft 4, the transmission half shafts 2 and the two driven wheels of the new energy pure electric vehicle are coaxially arranged; the unidirectional differential 3 is commercial finished equipment and has the following functions: when the new energy pure electric vehicle is reversed, the generator 5 can not move reversely along with the driven wheel 1 of the new energy pure electric vehicle, and charging short circuit caused by reverse voltage generated by the generator 5 is avoided.
The generator 5 is connected with a standby battery 8 through a rectifier 6 and an on-vehicle charger 7, and the standby battery 8 is connected with a power supply system 9 of the new energy pure electric vehicle; when the generator 5 is a permanent magnet direct current generator, the rectifier 6 can be omitted and the generator can be directly connected with the standby battery 8 through the vehicle-mounted charger 7 because the generator generates direct current. The spare battery 8 can be the same as the battery model of the new energy pure electric vehicle, and the vehicle-mounted charger 7 is selectively purchased in the market according to the determined model of the spare battery 8.
The working principle of the self-circulation charging system of the new energy pure electric vehicle is as follows:
as shown in fig. 3, since the drive half shaft 2 is connected with the driven wheel 1 of the new energy pure electric vehicle, the drive half shaft 2 can collect kinetic energy and inertial energy generated when the vehicle is running. The other end of the transmission half shaft 2 is connected with a unidirectional differential mechanism 3, torque collected from a driven wheel 1 of the new energy pure electric vehicle is transmitted to the differential mechanism, and the differential mechanism drives a transmission shaft 4 to rotate; because the generator 5 is in transmission connection with the transmission shaft 4, the generator 5 is stressed to rotate, and after the rated rotation speed is reached, the generator 5 starts to generate electricity, the voltage generated by the generator 5 is rated voltage and rated frequency, the alternating current is converted into direct current by the rectifier 6 according to the vehicle-mounted charging standard, and the standby battery 8 is charged by the vehicle-mounted charger 7, so that the purpose of recycling energy through self-circulation charging is achieved. When the self battery of the new energy pure electric vehicle is insufficient, the driving mileage is continued through the standby battery 8.
Further, as a preferred technical solution of the embodiment, if a macpherson suspension or a mobile suspension system is adopted at the driven wheel 1 of the new energy pure electric vehicle, the transmission half shaft 2 will have different axes and different concentricity in the unidirectional differential 3 during running of the vehicle, and displacement will be generated at the same time; therefore, when the Macpherson suspension or mobile suspension system is adopted at the driven wheel 1 of the new energy pure electric vehicle, a set of universal coupling 16 can be additionally arranged at the joint of the transmission half shaft 2 and the unidirectional differential 3, so that the transmission half shaft 2 can stably transmit the torque collected from the driven wheel 1 of the new energy pure electric vehicle to the differential.
The self-circulation charging system of the new energy pure electric vehicle provided by the embodiment can acquire the kinetic energy in real time by the driven wheel 1 of the new energy pure electric vehicle no matter the new energy pure electric vehicle is in an accelerating state or in a freewheeling state. If the new energy pure electric vehicle is a front-drive vehicle type, the new energy pure electric vehicle self-circulation charging system can be arranged at the tail of the vehicle; if the new energy pure electric vehicle is a rear-drive vehicle type, the new energy pure electric vehicle self-circulation charging system can be installed on the head of the vehicle.
In addition, due to the adoption of the technical scheme, the generator 5 can generate heat in the running process, the heat can be collected in winter, and the collected hot air supplies heat to the battery, so that the discharge power of the battery pack is improved. Specifically, as shown in fig. 2, an air duct 17 can be additionally arranged between the generator 5, the standby battery 8 and the battery of the new energy pure electric vehicle, and a fan 18 and an intelligent electromagnetic valve 19 are arranged on the air duct 17; the temperature of the generator 5 can reach 40-60 ℃ when in operation, hot air is selectively supplied to a battery or discharged by controlling the intelligent electromagnetic valve 19, and the intelligent electromagnetic valve 19 can adopt a Xuan WPS two-position three-way valve.
Example 2
On the basis of embodiment 1, since the generator 5 has high and low rotational speeds in rotational speed classification, the low rotational speed generator has the characteristics of low noise, high efficiency, strong durability, high reliability, low maintenance cost, and the like. When the low-speed generator is selected, in order to stabilize the collected torque and rotation speed into a constant-speed torque, the constant-speed torque is consistent with the rated rotation speed of the selected low-speed generator and is provided for the low-speed generator, and a speed stabilizing box 10 is additionally arranged in the implementation.
As shown in fig. 4, the power input end of the low-rotation-speed generator 5 is in transmission connection with the power output end of the speed stabilizing box 10, and the power input ends at two sides of the speed stabilizing box 10 are in transmission connection with two driven wheels of the new energy pure electric vehicle through the unidirectional differential 3 and the transmission half shaft 2. The stable gearbox 10 in the embodiment adopts the existing AT type automatic gearbox or CVT type gearbox and other commercial finished products, and the constant speed is output by adjusting the software program of the CVT type gearbox, so that the constant speed moment is consistent with the rated speed of the selected low-speed generator 5; the constant rotation speed is output by changing the gear ratio of the AT type automatic gearbox, so that the constant speed moment is consistent with the rated rotation speed of the selected low rotation speed generator 5; the low-rotation-speed generator 5 of 20Kw or less preferably uses a CVT type gearbox, and the low-rotation-speed generator 5 of 20Kw or more preferably uses an AT type automatic gearbox.
The working principle of the self-circulation charging system of the new energy pure electric vehicle is as follows:
as shown in fig. 5, since the drive half shaft 2 is connected with the driven wheel 1 of the new energy pure electric vehicle, the drive half shaft 2 can collect kinetic energy and inertial energy generated when the vehicle is running. The other end of the transmission half shaft 2 is connected with the unidirectional differential mechanism 3, torque collected from the driven wheel 1 of the new energy pure electric vehicle is transmitted to the speed stabilizing box 10, the speed stabilizing box 10 transmits the collected torque to the low-speed generator 5, the low-speed generator 5 generates power at the rated speed, the voltage generated by the low-speed generator 5 is rated voltage and rated frequency, the electric quantity is converted into direct current through the rectifier 6 to charge the vehicle-mounted standby battery 8, and the purpose of self-circulation charging and energy recovery is achieved.
Further, as a preferred technical solution of the present embodiment, in the technical solution of embodiment 1, the self-circulation charging system of the new energy pure electric vehicle acquires the kinetic energy from the driven wheel 1 of the new energy pure electric vehicle in real time, and when the gradient of the running road of the new energy pure electric vehicle reaches 10 degrees, the power consumption of the battery of the new energy pure electric vehicle is 1.3 times that of the common road surface under the condition that the self-circulation charging system of the new energy pure electric vehicle is not additionally arranged; therefore, in order to reduce the energy consumption of the new energy pure electric vehicle when the new energy pure electric vehicle runs on a gradient road after the new energy pure electric vehicle is additionally arranged in a self-circulation charging system, a gradient sensor 11 can be additionally arranged, the gradient sensor 11 can adopt a direct-current ZCT245RD-LAQ-75 automobile gradient sensor, and as shown in fig. 5, the gradient sensor 11 is arranged on the speed stabilizing box 10 and is electrically connected with the speed stabilizing box 10; detecting the gradient of the road condition of the vehicle running in real time through a gradient sensor 11, and suspending the operation of the speed stabilizing box 10 when the gradient reaches a certain value, so that the speed stabilizing box 10 is in an idle running state and temporarily does not output power; because the low-rotation-speed generator 5 has no power input, the self kinetic energy of the new energy pure electric vehicle is not consumed.
Example 3
On the basis of embodiment 1, since the generator 5 has high and low rotational speeds in rotational speed classification, the high rotational speed generator has the characteristics of high power density, space saving during installation and use, high efficiency, good dynamic response, low noise and vibration, and the like. When the high-speed generator is selected, if the speed stabilizing box 10 is adopted, the speed stabilizing box 10 changes the low speed into the high speed during low-speed running, and the torque increment is excessively large, so the gearbox 12 is additionally arranged in the implementation.
As shown in fig. 6, the power input end of the high-speed generator 5 is in transmission connection with the power output end of the gearbox 12, and the power input end of the gearbox 12 is in transmission connection with two driven wheels of the new energy pure electric vehicle through the unidirectional differential 3 and the transmission half shaft 2. The gearbox 12 in this embodiment adopts a fixed gear ratio gearbox of a conventional new energy pure electric vehicle, such as: a gear box with a fixed gear ratio is arranged at the north; by changing the gear ratio of the transmission, the rotational speed of the output of the transmission can reach the lower limit value of the high-rotational-speed generator 5 when the vehicle is traveling at a low speed. Taking a Wilmax EX5 new energy pure electric vehicle as an example, installing a high-speed generator 5 on the new energy pure electric vehicle, wherein the lower limit value of the speed of the high-speed generator 5 is 1500 revolutions per minute; when the new energy pure electric vehicle runs at a speed of 20 km/h, the vehicle speed is 167 revolutions per minute, and the gear ratio of the gearbox is changed, so that the gearbox meets the conditions that the input speed is 167 revolutions per minute and the output speed is 1500+/-10% revolutions per minute. In addition, since the voltage and frequency of the electric energy generated by the high-speed generator 5 are not matched with those of the standby battery 8, a transformer 13, a frequency converter 14 and a voltage stabilizer 15 are additionally arranged, and the high-speed generator 5 is connected with the rectifier 6 through the transformer 13, the frequency converter 14 and the voltage stabilizer 15 in sequence.
The working principle of the self-circulation charging system of the new energy pure electric vehicle is as follows:
as shown in fig. 7, since the drive half shaft 2 is connected to the driven wheel 1 of the new energy pure electric vehicle, the drive half shaft 2 can collect kinetic energy and inertial energy generated when the vehicle is running. The other end of the transmission half shaft 2 is connected with the unidirectional differential mechanism 3, torque collected from the driven wheel 1 of the new energy pure electric vehicle is transmitted to the gearbox 12, the gearbox 12 transmits the collected torque to the high-speed generator 5, and the high-speed generator 5 starts to generate electricity after stressed rotation reaches the rated rotation speed. The voltage of the electric energy generated by the high-rotation-speed generator 5 is regulated when the voltage is 100v-500v and the frequency reaches 25Hz-190Hz, after the frequency and the voltage are regulated through the transformer 13 and the frequency converter 14, the output voltage is ensured to be stable to 380v and the frequency of 50Hz or the adaptive voltage and the frequency required by other new energy pure electric vehicles through the voltage stabilizer 15; the electric quantity is converted into direct current through the rectifier 6 to charge the vehicle-mounted standby battery 8, so that the purpose of recycling energy from the cyclic charging is achieved.
In order to actually test the embodiment, the application actually makes the self-circulation charging system of the new energy pure electric vehicle and is installed on the Wilma EX5 new energy pure electric vehicle for actual test. The nominal endurance mileage of the new energy pure electric vehicle of Wema EX5 is 403Km, the rated power of the vehicle-mounted motor is 70KW, and the maximum power is 160KW.
The test selects the generator as: (1) a 3Kw permanent magnet brushless generator with a rotation speed of 500 rpm; (2) 5Kw permanent magnet brushless generator, rotational speed: 300 revolutions per minute, three-phase four wires; (3) 8kw permanent magnet variable frequency brushless generator, rotating speed: 1500 rpm, three phases four wires. The actual running test road is: the total distance of the road is more than 4600 km.
Road section one: the vehicle runs under the condition that a self-circulation charging system of the pure electric vehicle is not additionally arranged: the whole actual mileage of Guangnan county out of city, guangnan county bead street expressway toll station, guangnan county city is: 94 km; the time is 2 hours; power consumption: vehicle meter is shown as 29% of the total battery charge; vehicle instrument nominal driving range: 129 km.
After the self-circulation charging system of the pure electric vehicle is additionally arranged, the pure electric vehicle runs, and a generator adopts a 5Kw permanent magnet brushless generator: the whole actual mileage of Guangnan county out of city, guangnan county bead street expressway toll station, guangnan county city is: 94 km; the time is 2 hours; power consumption: the vehicle meter is shown as 36% of the total battery charge, the vehicle meter nominal range: 136 km.
The generating capacity of the self-circulation charging system of the pure electric vehicle is as follows: 7kwh; the conversion is as follows: the vehicle meter is shown as 14% of the total battery power; converted into a nominal driving range of the vehicle instrument: 56 km.
Road section II: the vehicle runs under the condition that a self-circulation charging system of the pure electric vehicle is not additionally arranged: the actual mileage in the whole course of the road from Guangnan county to city, from Guangnan county hall to road junction of the rolling dam, from Guangnan county to city is: 124 km; the time is 2.5 hours; power consumption: vehicle gauges were shown as 39% of the total battery charge; vehicle instrument nominal driving range: :147 km.
After the self-circulation charging system of the pure electric vehicle is additionally arranged, the pure electric vehicle runs, and the generator adopts a 3Kw permanent magnet brushless generator: the actual mileage in the whole course of the road from Guangnan county to city, from Guangnan county hall to road junction of the rolling dam, from Guangnan county to city is: 124 km; the time is 3 hours; power consumption: the vehicle meter is shown as 42% of the total battery charge; vehicle instrument nominal driving range: 163 km.
The generating capacity of the self-circulation charging system of the pure electric vehicle is as follows: 5.7kwh; the conversion is as follows: the vehicle meter is shown as 11.4% of the total battery charge; the nominal driving mileage converted into the vehicle instrument is as follows: 45.6 km.
After the self-circulation charging system of the pure electric vehicle is additionally arranged, the pure electric vehicle runs, and a generator adopts a 5Kw permanent magnet brushless generator: the actual mileage in the whole course of the road from Guangnan county to city, from Guangnan county hall to road junction of the rolling dam, from Guangnan county to city is: 124 km; the time is 3 hours; power consumption: vehicle instrumentation is shown as 44% of the total battery charge; vehicle instrument nominal driving range: 169 km.
The generating capacity of the self-circulation charging system of the pure electric vehicle is as follows: 8kwh; the conversion is as follows: vehicle gauges were shown as 16% of the total battery charge; converted into a nominal driving range of the vehicle instrument: 64 km.
After the self-circulation charging system of the pure electric vehicle is additionally arranged, the pure electric vehicle runs, and an 8kw permanent magnet variable frequency brushless generator is adopted as the generator: the actual mileage in the whole course of the road from Guangnan county to city, from Guangnan county hall to road junction of the rolling dam, from Guangnan county to city is: 124 km; the time is 3 hours; power consumption: vehicle meter is shown as 47% of the total battery charge; vehicle instrument nominal driving range: 179 km.
The generating capacity of the self-circulation charging system of the pure electric vehicle is as follows: 9kwh; the conversion is as follows: the vehicle meter is shown as 18% of the total battery charge; converted into a nominal driving range of the vehicle instrument: 72 km.
In summary, the range-increasing rate of the experimental test section one is 28.78% of the nominal driving mileage of the vehicle instrument; the range-increasing rate of the experimental test section II is 18.16%, 24.85% and 22.34% of the nominal driving mileage of the vehicle instrument. The self-circulation charging system of the new energy pure electric vehicle is in transmission connection with the driven wheel 1 of the new energy pure electric vehicle, the driven wheel 1 of the new energy pure electric vehicle is used for acquiring kinetic energy, and an energy recovery device of the new energy pure electric vehicle is not influenced, so that the pure electric vehicle can fully utilize the kinetic energy, potential energy and inertial energy of the pure electric vehicle to generate electricity in the running process, and the generated electric energy is converted into driving mileage; in terms of driving mileage, the travel of the pure electric vehicle can be increased by more than 20%, so that the surplus kinetic energy and inertia are effectively and comprehensively utilized.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A new forms of energy pure electric vehicles self-loopa charging system, its characterized in that: the self-circulation charging system of the new energy pure electric vehicle is in transmission connection with a driven wheel of the new energy pure electric vehicle, and obtains kinetic energy through the driven wheel of the new energy pure electric vehicle, and the self-circulation charging system comprises a transmission half shaft, a unidirectional differential mechanism, a transmission shaft, a generator, a rectifier, a vehicle-mounted charger and a standby battery;
the power input end of the power generator is in transmission connection with a transmission shaft, the transmission shaft is arranged in the middle of two driven wheels of the new energy pure electric vehicle through a bearing seat, two sides of the transmission shaft are respectively connected with two transmission half shafts through a unidirectional differential mechanism, and the two transmission half shafts are respectively connected with the two driven wheels of the new energy pure electric vehicle;
the generator is connected with a standby battery through a rectifier and an on-vehicle charger, and the standby battery is connected with a power supply system of the new energy pure electric vehicle.
2. The new energy pure electric vehicle self-circulation charging system according to claim 1, wherein: the generator is a permanent magnet direct current generator or a permanent magnet brushless alternating current generator.
3. The new energy pure electric vehicle self-circulation charging system according to claim 1, wherein: the self-circulation charging system of the new energy pure electric vehicle further comprises a speed stabilizing box, the generator is a low-rotation-speed generator, the power input end of the low-rotation-speed generator is in transmission connection with the power output end of the speed stabilizing box, and the power input end of the speed stabilizing box is in transmission connection with the driven wheel of the new energy pure electric vehicle through a one-way differential mechanism and a transmission half shaft.
4. The new energy pure electric vehicle self-circulation charging system according to claim 3, wherein: the self-circulation charging system of the new energy pure electric vehicle further comprises a gradient sensor, wherein the gradient sensor is arranged on the speed stabilizing box and is electrically connected with the speed stabilizing box.
5. The new energy pure electric vehicle self-circulation charging system according to claim 1, wherein: the self-circulation charging system of the new energy pure electric vehicle further comprises a gearbox, the generator is a high-speed generator, the power input end of the high-speed generator is in transmission connection with the power output end of the gearbox, and the power input end of the gearbox is in transmission connection with two driven wheels of the new energy pure electric vehicle through a one-way differential mechanism and a transmission half shaft.
6. The new energy pure electric vehicle self-circulation charging system according to claim 5, wherein: the self-circulation charging system of the new energy pure electric vehicle further comprises a transformer, a frequency converter and a voltage stabilizer; the high-rotation-speed generator is connected with the rectifier through the transformer, the frequency converter and the voltage stabilizer in sequence.
7. The new energy pure electric vehicle self-circulation charging system according to claim 1, wherein: the self-circulation charging system of the new energy pure electric vehicle further comprises a universal coupling, and the universal coupling is arranged at the joint of the transmission half shaft and the differential mechanism.
8. The new energy pure electric vehicle self-circulation charging system according to claim 1, wherein: an air pipe is additionally arranged between the generator and the backup battery and between the generator and the self battery of the new energy pure electric vehicle, and a fan and an intelligent electromagnetic valve are arranged on the air pipe.
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