CN113844331A - New energy automobile energy recovery control device - Google Patents
New energy automobile energy recovery control device Download PDFInfo
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- CN113844331A CN113844331A CN202110969885.6A CN202110969885A CN113844331A CN 113844331 A CN113844331 A CN 113844331A CN 202110969885 A CN202110969885 A CN 202110969885A CN 113844331 A CN113844331 A CN 113844331A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a new energy automobile energy recovery control device.A voltage control circuit adopts an operational amplifier AR1 to calculate the difference value between the voltage of a storage battery in a charging stage and the voltage stored by a super capacitor 1, when the difference value is negative, a triode Q2 is conducted, a relay K2 coil is electrified, the difference value changes the drain-source resistance value of a field effect transistor Q6, the difference value is divided, the voltage of a voltage division point is converted into PWM signals through a PWM conversion circuit respectively, the PWM signals are added to a voltage regulating circuit to carry out coarse voltage regulation on the voltage stored by the super capacitor 1 and are added to a base electrode of a transistor Q3 to control the amount of excessive electric energy charging and insufficient electric energy discharging of a super capacitor 2, the voltage required by the charging stage of the storage battery is output after the rectification by a transformer T1 secondary coil and a diode D2, the voltage is fed into a current control circuit, the current control circuit is subjected to current limiting through a resistor R16, the voltage stabilization of the triode Q4, a resistor R17 is further used for charging the storage battery, and the storage battery can be charged according to the voltage limiting, The current is charged in stages, so that the charging rate of the storage battery can be improved, and the service life of the storage battery is not influenced.
Description
Technical Field
The invention belongs to the technical field of energy recovery, and particularly relates to an energy recovery control device for a new energy automobile.
Background
The braking energy recovery of the new energy automobile (electric automobile) comprises a generator matched with the automobile type, a super capacitor, a storage battery and an intelligent battery management system capable of monitoring the electric quantity of the battery, wherein the redundant energy released by the automobile in braking or inertia sliding is converted into electric energy through the generator and stored in the super capacitor, and the super capacitor charges the storage battery for improving the driving range.
The existing braking energy recovery control is only to simply compare the convertible electric energy with the electric quantity of the storage battery, when the former is smaller than the latter, the charging is carried out, and the charging speed and the service life of the storage battery are directly influenced because the charging in stages can not be adopted according to the voltage and the current of the storage battery.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the energy recovery control device for the new energy automobile, which effectively solves the problem that the charging rate and the service life of the storage battery are directly influenced because the existing energy recovery control cannot adopt stage charging according to the voltage and the current of the storage battery.
The technical scheme includes that the system comprises a generator, a super capacitor 1, a super capacitor 2 and a storage battery, wherein the generator converts braking energy of a new energy automobile into electric energy to be stored in the super capacitor 1 and the super capacitor 2, the super capacitor 1 and the super capacitor 2 charge the storage battery, and the super capacitor 1 and the super capacitor 2 charge the storage battery and are controlled by a charging recovery control circuit;
the charge recovery control circuit comprises a voltage control circuit and a current control circuit, wherein the voltage control circuit calculates the difference value between the voltage of the storage battery in the charge stage and the voltage stored in the super capacitor 1 by adopting an operational amplifier AR1, when the difference value is negative, a triode Q2 is switched on, a relay K2 coil is electrified, the difference value is divided by a resistor R14, a resistor R5 and a field effect tube Q6, the voltage at a voltage division point is respectively added to a voltage regulating circuit consisting of the field effect tube Q1 and a transformer T1 serving as cores through a PWM (pulse-width modulation) conversion circuit to carry out coarse voltage regulation, the base of a transistor Q3 is used for controlling the super capacitor 2 to carry out redundant electric energy charge and discharge when the electric energy is insufficient, and the voltage required by the charge stage of the storage battery is output;
the current control circuit receives an output signal of the voltage control circuit, the output signal is limited by a resistor R16, a triode Q4 is used for stabilizing voltage, and a resistor R17 is used for further limiting current and then charging the storage battery, wherein the operational amplifier AR2 converts the current of the voltage regulating circuit into voltage which is compared with the voltage corresponding to the current in the charging stage of the storage battery, when the current is high, the current is parallelly connected with the resistor through a CE (resistor) junction of a transistor Q3 and is reversely charged and fed back to a grid electrode of a field effect tube Q7 which is parallelly connected with the resistor R16 and a grid electrode of a field effect tube Q6 which is parallelly connected with the resistor R17 step by step for limiting current, and the triode Q5 is used for current expansion.
The invention has the beneficial effects that: the difference value between the voltage stored in the storage battery charging stage and the voltage stored in the super capacitor 1 is calculated by adopting an operational amplifier AR1, when the difference value is negative, a triode Q2 is conducted, a coil of a relay K2 is electrified, the difference value is divided by a resistor R14, a resistor R5 and a field-effect tube Q6, the source voltages of a resistor R5 and a field-effect tube Q6 are converted into PWM signals through a PWM conversion circuit, the PWM signals are added to a voltage regulating circuit which is composed of the field-effect tube Q1 and a transformer T1 as cores to roughly regulate the voltage stored in the super capacitor 1, the voltage is output by a secondary coil of the transformer T1, the voltage is rectified by a diode D2 and then regulated by a transistor Q3 to be output, the voltage regulated by the transistor Q3 is converted into the PWM signals by a drain voltage of the resistor R14 and the field-effect tube Q6 through the PWM conversion circuit, the voltage is added to a base of the transistor Q3, the super capacitor 2 is controlled to carry out charging of redundant electric energy, the amount of discharging caused by insufficient electric energy, and the voltage required by the storage battery charging stage is output, the current of the voltage regulating circuit is converted into voltage corresponding to the current in the charging stage of the storage battery by the operational amplifier AR2, the voltage is compared with the voltage corresponding to the current in the charging stage of the storage battery, when the current is high, the current is parallelly connected with the resistor through the CE junction of the transistor Q3, and is reversely charged and fed back to the grid of the field effect transistor Q7 parallelly connected with the resistor R16 and the grid of the field effect transistor Q6 parallelly connected with the resistor R17 step by step for current limiting, the triode Q5 is used for current expansion, the stage charging can be carried out according to the voltage and the current of the storage battery, the charging rate of the storage battery can be improved, and the service life is not influenced.
Drawings
Fig. 1 is a schematic diagram of the circuit of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings.
The new energy automobile energy recovery control device comprises a generator, a super capacitor 1, a super capacitor 2 and a storage battery, wherein the generator converts braking energy of a new energy automobile into electric energy and stores the electric energy into the super capacitor 1 and the super capacitor 2, the super capacitor 1 and the super capacitor 2 charge the storage battery, and the super capacitor 1 and the super capacitor 2 charge the storage battery and are controlled by a charging recovery control circuit;
the charge recovery control circuit comprises a voltage control circuit and a current control circuit, wherein the voltage control circuit adopts an operational amplifier AR1 to calculate the difference between the voltage of a storage battery in the charging stage and the voltage stored by a super capacitor 1, when the difference is negative, a triode Q2 is switched on, a coil of a relay K2 is electrified, a normally closed contact K3-1 of the relay K1 is disconnected, a normally open contact K3-2 is closed, the difference changes the drain-source resistance value of a field-effect tube Q6, the difference is divided by a resistor R14, a resistor R5 and a field-effect tube Q6, the source voltages of the resistor R5 and the field-effect tube Q6 are converted into PWM signals through a PWM conversion circuit, the PWM signals are added to a voltage regulation circuit formed by the field-effect tube Q1 and the transformer T1 as cores to carry out coarse voltage regulation on the voltage stored by the super capacitor 1, the voltage is output by a transformer T1 secondary coil, then is rectified by a diode D2 and then output by a transistor Q3, wherein a thermistor RTC1 is connected with a capacitor C1 in parallel and an inductor H1 in parallel, The capacitor C2 is connected in series to play a role in filtering and impact resistance, the resistor R3 and the resistor R1 are sampling resistors and are used for collecting the voltage and the current of the super capacitor 1, the voltage of the drain electrodes of the resistor R14 and the field effect transistor Q6 is converted into a PWM signal through a PWM conversion circuit and is added to the base electrode of the transistor Q3, the amount of redundant electric energy charging and insufficient electric energy discharging of the super capacitor 2 is controlled, and the voltage required by the charging stage of the storage battery is output;
the current control circuit receives the output signal of the voltage control circuit, the output signal is limited by a resistor R16, a triode Q4 is used for voltage stabilization, the resistor R17 is used for further current limitation, the storage battery is charged, the storage battery can be charged in stages according to the voltage and the current of the storage battery, the charging speed of the storage battery can be improved, the service life is not influenced, the operational amplifier AR2 converts the current of the voltage regulating circuit into voltage which is compared with the voltage corresponding to the current in the charging stage of the storage battery, when the current is high, a voltage stabilizing tube Z1 is subjected to reverse breakdown, a thyristor VTL1 is conducted, a CE junction parallel resistor R6 of a transistor Q3 is switched on for current limitation, the voltage is fed back to a grid of a field effect tube Q7 which is connected with the resistor R16 in parallel and a grid of a field effect tube Q6 which is connected with the resistor R17 in parallel in reverse charging through an electrolytic capacitor E2 and a resistor R15 in reverse charging, the grid of the field effect tube Q6 between drain and source is changed, the current limitation is further, the current expansion is carried out, the triode Q5, the operational amplifier AR4 feeds back the difference between the output voltage of the triode Q4 and the voltage of the storage battery in the charging stage to the base electrode of the triode Q4, and the voltage stabilization of the triode Q4 is realized.
In the technical scheme, the voltage control circuit adopts the operational amplifier AR1 to calculate the difference between the voltage of the storage battery in the charging stage (which can be given by an intelligent battery management system monitoring the electric quantity of the battery) and the voltage stored in the super capacitor 1, when the difference is negative (namely the voltage stored in the super capacitor 1 is lower than the voltage of the storage battery in the charging stage), the triode Q2 is switched on, the coil of the relay K2 is electrified, the normally closed contact K3-1 of the relay K1 is disconnected, the normally open contact K3-2 is closed, the difference changes the drain-source resistance value of the field effect transistor Q6, and the difference is processed by the difference
The resistor R14, the resistor R5 and the field effect transistor Q6 are divided, the voltage of the source electrode of the resistor R5 and the field effect transistor Q6 is converted into a PWM signal through a PWM conversion circuit (can be a PWM converter with the model AL9910, which is the prior art and is not described in detail herein), the PWM signal is added to a voltage regulation circuit which is composed of the field effect transistor Q1 and a transformer T1 and is used for roughly regulating the voltage stored in the super capacitor 1, the voltage is output by a secondary coil of the transformer T1 and is rectified by a diode D2 and then is regulated by a transistor Q3 and then output, wherein the thermistor RTC1 is connected with a capacitor C1 in parallel and then is connected with an inductor H1 and a capacitor C2 in series for filtering and preventing impact, the resistor R3 and the resistor R1 are sampling resistors for collecting the voltage and current of the super capacitor 1, the voltage of the drain electrodes of the resistor R14 and the field effect transistor Q6 is converted into the PWM signal through the PWM conversion circuit (can be a PWM converter with the model AL9910, which is not described in detail herein), the voltage control circuit is applied to a base electrode of a transistor Q3, controls the super capacitor 2 to charge redundant electric energy and discharge insufficient electric energy, and outputs voltage required by a storage battery charging stage, and comprises a super capacitor 1, wherein the anode of the super capacitor 1 is respectively connected with one end of a thermistor RTC1, one end of a capacitor C1, one end of a capacitor C2 and one end of an inductor H1, the other end of a capacitor C2 is respectively connected with the other end of an inductor H1, one end of a resistor R4, one end of a resistor R3, one end of a capacitor C3 and one end of a primary coil of a transformer T1, the other end of the primary coil of the transformer T1 is respectively connected with the anode of a diode D1 and the drain of a field effect transistor Q1, the cathode of the diode D1 is respectively connected with the other end of a resistor R4 and the other end of a capacitor C3, the cathode of the super capacitor 1 is connected with one end of the resistor R1, the other end of the resistor R1 and the source of a field effect transistor Q1 are respectively connected to the ground, one end of a secondary coil of the transformer D2 is connected with the anode of the diode D2, the cathode of the diode D2 is respectively connected with one end of a capacitor C4 and one end of a resistor R7, the other end of the capacitor C4 is connected with one end of a resistor R8, the cathode of the diode D2 and the other end of a transformer secondary coil as well as the other end of a resistor R8 are used as output signals of a voltage control circuit, the other end of the resistor R7 is respectively connected with one end of a resistor R6, the cathode of a diode D4 and the collector of a transistor Q3, the emitter of the transistor Q3 is respectively connected with the anode of a diode D4, the control electrode of a thyristor VTL1 and the left end of a normally closed contact K3-1 of a relay K1, the anode of the thyristor VTL1 is connected with the other end of a resistor R6, the right end of a normally closed contact K3-1 of a relay 1 is respectively connected with the anode of a super capacitor 2 and the left end of a normally open contact K3-2 of the relay K1, the cathode of the super capacitor 2 is connected with the ground, the right end of the normally open contact K1K 3-2 is connected with one end of a resistor R9, the other end of the resistor R9 is connected with the cathode of the diode D2, the other end of the resistor R3 is connected with the non-inverting input end of the operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with the voltage of the storage battery in the charging stage, the output end of the operational amplifier AR1 is respectively connected with one end of a resistor R12 and the left end of an inductor H2, the other end of the resistor R12 is respectively connected with the cathode of the grounding electrolytic capacitor E1 and one end of a resistor R13, the grid of a field effect transistor Q6, the emitter of a triode Q2 is connected with the ground, the collector of a triode Q2 is respectively connected with the cathode of a diode D3 and one end of a coil of a relay K3, the anode of a diode D3 and the other end of a coil of a relay K3 are connected with a power supply of-5V, the other end of an inductor H2 is connected with one end of a resistor R14, the other end of a resistor R14 and the drain of the field effect transistor Q6 are converted into PWM pulses through a PWM conversion circuit and then are added to the base of a transistor Q3, and one end of a grounding resistor R5 and the source of the field effect transistor Q6 are converted into the PWM pulses through the PWM conversion circuit and then are added to the base of the field effect transistor Q1.
In the technical scheme, the current control circuit receives an output signal of the voltage control circuit, charges the storage battery after being limited by the resistor R16, the triode Q4 stabilizes the voltage, and the resistor R17 further limits the current, can charge the storage battery in stages (such as three-stage and five-stage charging) according to the voltage and the current of the storage battery, can improve the charging rate of the storage battery, and does not influence the service life, wherein the operational amplifier AR2 converts the current of the voltage regulation circuit into the voltage corresponding to the current in the charging stage of the storage battery for comparison, when the current is high, the voltage stabilization tube Z1 is reversely broken down, the thyristor VTL1 is conducted, the CE junction parallel resistor R6 of the transistor Q3 is switched on for current limiting, and the current is reversely charged by the electrolytic capacitor E2 and the resistor R15 and is fed back to the grid of the field effect tube Q7 connected in parallel with the resistor R16 and the grid of the field effect tube Q6 connected in parallel with the resistor R17 step by step, so as to change the leakage resistance value between field effect tubes, and then change the resistance value of the current-limiting, carry on the current-limiting, the triode Q5 is used for carrying on the diffusion, wherein the difference of the output voltage of triode Q4 and voltage of accumulator charge stage is fed back to the base of triode Q4 by the operational amplifier AR4, realize the voltage stabilization of triode Q4, including resistance R16, operational amplifier AR2, one end of resistance R16 connects negative pole of diode D2, source of field effect tube Q1, emitter of triode Q5 separately, another end of resistance R16 connects drain of field effect tube Q1, base of triode Q5, collector of triode Q4, one end of resistance R10, one end of capacitance C5, emitter of triode Q4 connects one end of resistance R11, collector of triode Q5, one end of negative pole capacitance C6 of diode D7, one end of resistance R17, source of field effect tube Q6 separately, another end of resistance R17 connects one end of resistance R18, drain of field effect tube Q6, another end of resistance R18 connects to the positive pole of accumulator 18, the negative electrode of the diode D7 and the other end of the secondary coil of the transformer are connected to the negative electrode of the storage battery, the non-inverting input end of the operational amplifier AR2 is connected to the other end of the resistor R1, the inverting input end and the output end of the operational amplifier AR2 are connected to the non-inverting input end of the operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected to the current in the charging stage of the storage battery, the output end of the operational amplifier AR3 is connected to the negative electrode of the voltage regulator Z1, the negative electrode of the grounded electrolytic capacitor E2, one end of the grounded resistor R15 and the negative electrode of the diode D5 respectively, the positive electrode of the voltage regulator Z1 is connected to the control electrode of the thyristor VTL1, the positive electrode of the diode D5 is connected to the gate of the field effect transistor Q7 and the negative electrode of the diode D6, and the positive electrode of the diode D6 is connected to the gate of the field effect transistor Q6.
When the invention is used, the super capacitor 1 and the super capacitor 2 charge the storage battery and are controlled by the charge recovery control circuit, the charge recovery control circuit comprises a voltage control circuit and a current control circuit, the voltage control circuit adopts an operational amplifier AR1 to calculate the difference between the voltage of the storage battery in the charging stage and the voltage stored in the super capacitor 1, when the difference is negative, the triode Q2 is conducted, the coil of the relay K2 is electrified, the normally closed contact K3-1 of the relay K1 is disconnected, the normally open contact K3-2 is closed, the leakage source resistance value of the field effect tube Q6 is changed by the difference, the difference is subjected to rough voltage regulation on the voltage stored in the super capacitor 1 through the resistor R14, the resistor R5 and the field effect tube Q6, the voltage of the source electrode of the resistor R5 and the field effect tube Q6 is converted into a PWM signal through a PWM conversion circuit and is added to a voltage regulation circuit consisting of the field effect tube Q1 and the transformer T1 as a core, the secondary coil of the transformer T1 is output, after the voltage is rectified by a diode D2, the voltage is regulated by a transistor Q3 and then output, the voltage of a resistor R14 and a drain electrode of a field effect transistor Q6 is converted into a PWM signal by a PWM conversion circuit and is added to a base electrode of the transistor Q3 to control the amount of surplus electric energy charging and insufficient electric energy discharging of the super capacitor 2, the voltage required by the charging stage of the storage battery is output and enters a current control circuit, the current is limited by a resistor R16, the voltage is stabilized by a triode Q4, the storage battery is charged after the current is further limited by a resistor R17, the storage battery can be charged in stages according to the voltage and the current of the storage battery, the charging rate of the storage battery can be improved, the service life is not influenced, wherein the operational amplifier AR2 converts the current of the voltage regulating circuit into voltage corresponding to the current of the charging stage of the storage battery for comparison, when the current is high, a voltage regulator Z1 is reversely broken down, a thyristor VTL1 is conducted, the CE junction of the transistor Q3 is connected with the resistor R6 in parallel connection for current limiting, and the current is reversely charged through an electrolytic capacitor E2 and a resistor R15 and is fed back to the grid of a field effect tube Q7 connected with the resistor R16 in parallel and the grid of a field effect tube Q6 connected with the resistor R17 in parallel step by step, the resistance between the drain and the source of the field effect tube is changed, the resistance of current limiting is further changed, and current limiting is carried out, and a triode Q5 is used for carrying out current expansion.
Claims (3)
1. The energy recovery control device for the new energy automobile comprises a generator, a super capacitor 1, a super capacitor 2 and a storage battery, wherein the generator converts braking energy of the new energy automobile into electric energy and stores the electric energy into the super capacitor 1 and the super capacitor 2, and the super capacitor 1 and the super capacitor 2 charge the storage battery;
the charge recovery control circuit comprises a voltage control circuit and a current control circuit, wherein the voltage control circuit calculates the difference value between the voltage of the storage battery in the charge stage and the voltage stored in the super capacitor 1 by adopting an operational amplifier AR1, when the difference value is negative, a triode Q2 is switched on, a relay K2 coil is electrified, the difference value is divided by a resistor R14, a resistor R5 and a field effect tube Q6, the voltage at a voltage division point is respectively added to a voltage regulating circuit consisting of the field effect tube Q1 and a transformer T1 serving as cores through a PWM (pulse-width modulation) conversion circuit to carry out coarse voltage regulation, the base of a transistor Q3 is used for controlling the super capacitor 2 to carry out redundant electric energy charge and discharge when the electric energy is insufficient, and the voltage required by the charge stage of the storage battery is output;
the current control circuit receives an output signal of the voltage control circuit, the output signal is limited by a resistor R16, a triode Q4 is used for stabilizing voltage, and a resistor R17 is used for further limiting current and then charging a storage battery, wherein the operational amplifier AR2 converts the current of the voltage regulating circuit into voltage corresponding to the current in the charging stage of the storage battery and compares the voltage with the voltage, when the current is high, the current is fed back to a grid electrode of a field effect tube Q7 connected with the resistor R16 in parallel and a grid electrode of a field effect tube Q6 connected with the resistor R17 in parallel step by step through a CE (consumer electronics) junction parallel resistor of the transistor Q3 for limiting current, and the triode Q5 is used for current expansion.
2. The new energy automobile energy recovery control device according to claim 1, wherein the voltage control circuit comprises a super capacitor 1, the anode of the super capacitor 1 is connected to one end of a thermistor RTC1, one end of a capacitor C1, one end of a capacitor C2 and one end of an inductor H1 respectively, the other end of the capacitor C2 is connected to the other end of an inductor H1, one end of a resistor R4, one end of a resistor R3, one end of a capacitor C3 and one end of a primary coil of a transformer T1 respectively, the other end of the primary coil of the transformer T1 is connected to the anode of a diode D1 and the drain of a field effect transistor Q1 respectively, the cathode of a diode D1 is connected to the other end of the resistor R4 and the other end of the capacitor C3 respectively, the cathode of the super capacitor 1 is connected to one end of a resistor R1, the other end of the resistor R1 and the source of the field effect transistor Q1 are connected to ground, one end of a secondary coil of the transformer D2 is connected to the anode, the cathode of the diode D2 is respectively connected with one end of a capacitor C4 and one end of a resistor R7, the other end of the capacitor C4 is connected with one end of a resistor R8, the cathode of the diode D2 and the other end of a transformer secondary coil as well as the other end of a resistor R8 are used as output signals of a voltage control circuit, the other end of the resistor R7 is respectively connected with one end of a resistor R6, the cathode of a diode D4 and the collector of a transistor Q3, the emitter of the transistor Q3 is respectively connected with the anode of a diode D4, the control electrode of a thyristor VTL1 and the left end of a normally closed contact K3-1 of a relay K1, the anode of the thyristor VTL1 is connected with the other end of a resistor R6, the right end of a normally closed contact K3-1 of a relay 1 is respectively connected with the anode of a super capacitor 2 and the left end of a normally open contact K3-2 of the relay K1, the cathode of the super capacitor 2 is connected with the ground, the right end of the normally open contact K1K 3-2 is connected with one end of a resistor R9, the other end of the resistor R9 is connected with the cathode of the diode D2, the other end of the resistor R3 is connected with the non-inverting input end of the operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with the voltage of the charging stage of the storage battery, the output end of the operational amplifier AR1 is respectively connected with one end of the resistor R12 and the left end of the inductor H2, the other end of the resistor R12 is respectively connected with the cathode of the grounding electrolytic capacitor E1 and one end of the resistor R13, the grid of a field effect transistor Q6, the emitter of a triode Q2 is connected with the ground, the collector of a triode Q2 is respectively connected with the cathode of a diode D3 and one end of a coil of a relay K3, the anode of a diode D3 and the other end of a coil of a relay K3 are connected with a power supply of-5V, the other end of an inductor H2 is connected with one end of a resistor R14, the other end of a resistor R14 and the drain of the field effect transistor Q6 are converted into PWM pulses through a PWM conversion circuit and then are added to the base of a transistor Q3, and one end of a grounding resistor R5 and the source of the field effect transistor Q6 are converted into the PWM pulses through the PWM conversion circuit and then are added to the base of the field effect transistor Q1.
3. The new energy automobile energy recovery control device according to claim 1, wherein the current control circuit comprises a resistor R16 and an operational amplifier AR2, one end of the resistor R16 is connected to the cathode of the diode D2, the source of the field effect transistor Q1 and the emitter of the transistor Q5, the other end of the resistor R16 is connected to the drain of the field effect transistor Q1, the base of the transistor Q5, the collector of the transistor Q4, one end of the resistor R10 and one end of the capacitor C5, the emitter of the transistor Q4 is connected to one end of the resistor R11, the collector of the transistor Q5, one end of the cathode capacitor C6 of the diode D7, one end of the resistor R17 and the source of the field effect transistor Q6, the other end of the resistor R17 is connected to one end of the resistor R18 and the drain of the field effect transistor Q6, the other end of the resistor R18 is connected to the anode of the storage battery, the cathode of the diode D7 and the other end of the secondary winding of the transformer are connected to the cathode of the storage battery, the non-inverting input end of the operational amplifier AR2 is connected with the other end of the resistor R1, the inverting input end and the output end of the operational amplifier AR2 are connected with the non-inverting input end of the operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with the storage battery charging stage current, the output end of the operational amplifier AR3 is connected with the negative electrode of the voltage regulator tube Z1, the negative electrode of the grounding electrolytic capacitor E2, one end of the grounding resistor R15 and the negative electrode of the diode D5, the positive electrode of the voltage regulator tube Z1 is connected with the control electrode of the thyristor VTL1, the positive electrode of the diode D5 is connected with the grid electrode of the field effect tube Q7 and the negative electrode of the diode D6, and the positive electrode of the diode D6 is connected with the grid electrode of the field effect tube Q6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110969885.6A CN113844331A (en) | 2021-08-23 | 2021-08-23 | New energy automobile energy recovery control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110969885.6A CN113844331A (en) | 2021-08-23 | 2021-08-23 | New energy automobile energy recovery control device |
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| CN113844331A true CN113844331A (en) | 2021-12-28 |
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Application publication date: 20211228 |