CN117424472A - Vehicle-mounted inverter power control system and method - Google Patents
Vehicle-mounted inverter power control system and method Download PDFInfo
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- CN117424472A CN117424472A CN202311330743.0A CN202311330743A CN117424472A CN 117424472 A CN117424472 A CN 117424472A CN 202311330743 A CN202311330743 A CN 202311330743A CN 117424472 A CN117424472 A CN 117424472A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 235000019506 cigar Nutrition 0.000 claims abstract description 141
- 238000001514 detection method Methods 0.000 claims abstract description 83
- 241000270722 Crocodylidae Species 0.000 claims description 6
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 claims description 6
- 241000270728 Alligator Species 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to the technical field of vehicle-mounted inverters, in particular to a vehicle-mounted inverter power control system and method. The in-vehicle inverter system includes: a cigar lighter connector, comprising: a cigar lighter detection terminal connected with the negative electrode of the cigar lighter socket; a battery connector; an inverter body comprising: the chip connector comprises a chip detection terminal, the chip connector can be connected with any one of the cigar lighter connector and the battery connector, when the chip connector is connected with the cigar lighter connector, the cigar lighter detection terminal is connected with the chip detection terminal, and when the chip connector is connected with the battery connector, the chip detection terminal is empty; the control chip is provided with a detection pin, the detection pin is connected with a chip detection terminal, the control chip can judge whether the chip connector is currently connected with the cigar lighter connector or the battery connector according to the voltage on the detection pin, and the inverter main body is driven to be in a corresponding power mode according to a judging result.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted inverters, in particular to a vehicle-mounted inverter power control system and method.
Background
An on-vehicle inverter is a device for converting direct current of a vehicle into alternating current. High power inverters are suitable for devices requiring higher power, but require connection to the battery side. The low-power inverter can supply power through a cigar lighter jack in the vehicle, and is suitable for some low-power devices.
High power on-board inverters typically require connection to the under-hood battery end of the vehicle and cannot be powered through the in-car cigar lighter socket. Therefore, a user needs to be provided with two sets of vehicle-mounted inverters to adapt to all application scenes, and the use is very inconvenient.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a vehicle-mounted inverter power control method to solve the problem that a user in the prior art needs to be provided with two sets of vehicle-mounted inverters to adapt to two application scenes of high power and low power, so that the use is very inconvenient.
The technical scheme adopted for solving the technical problems is as follows: an in-vehicle inverter system, comprising:
a cigar lighter connector, comprising: a cigar lighter detection terminal connected with the negative electrode of the cigar lighter socket;
a battery connector;
an inverter body comprising:
a chip connector including a chip detection terminal, the chip connector being connectable to any one of the cigar lighter connector and the battery connector, the cigar lighter detection terminal being connected to the chip detection terminal when the chip connector is connected to the cigar lighter connector, the chip detection terminal being empty when the chip connector is connected to the battery connector;
the control chip is provided with a detection pin, the detection pin is connected with the chip detection terminal, the control chip can judge whether the chip connector is currently connected with a cigar lighter connector or a battery connector according to the voltage on the detection pin, and the inverter main body is driven to be in a corresponding power mode according to the judging result.
Optionally, the control chip further includes:
the power supply pin is connected with a chip power supply, and the grounding pin is grounded;
the inverter body further includes:
and one end of the control resistor is connected with the power supply pin, and the other end of the control resistor is connected with the detection pin.
Optionally, the cigar lighter connector further comprises:
the cigar lighter comprises a cigar lighter positive terminal and a cigar lighter negative terminal, wherein the cigar lighter negative terminal is connected with the negative electrode of the cigar lighter socket, the cigar lighter positive terminal is connected with the positive electrode of the cigar lighter socket, and the cigar lighter detection terminal is connected with the cigar lighter negative terminal;
the vehicle-mounted battery comprises a battery positive terminal and a battery negative terminal, wherein the battery positive terminal is connected with the positive electrode of the vehicle-mounted battery, and the battery negative terminal is connected with the negative electrode of the vehicle-mounted battery.
Optionally, the cigar lighter connector further comprises:
two groups of cigar lighter cables, wherein one end of one group of cigar lighter cable is connected with the positive electrode of the vehicle-mounted cigar lighter, and the other end of the other group of cigar lighter cable is connected with the positive electrode terminal of the cigar lighter;
another group cigar lighter cable one end is connected the negative pole of on-vehicle cigar lighter, its other end is connected the second cigar lighter negative pole terminal, another group cigar lighter cable one of them cigar lighter cable's other end is connected simultaneously cigar lighter negative pole terminal with cigar lighter detects the terminal.
Optionally, the battery connector further includes:
two groups of battery cables, wherein one end of each group of battery cable is provided with an alligator clip;
one group of the battery cables is connected with the positive electrode of the vehicle-mounted battery through the crocodile clip, and the other end of the battery cable is connected with the positive electrode terminal of the battery;
the other group of battery cables are connected with the negative electrode of the vehicle-mounted battery through the crocodile clips, and the other end of the battery cables is connected with the negative electrode terminal of the battery.
The technical scheme adopted for solving the technical problems is as follows: a vehicle-mounted inverter power control method applied to the vehicle-mounted inverter system as described above, comprising:
detecting a detection voltage on the detection pin;
when the detected voltage is lower than a preset threshold value, controlling the inverter main body to be in a first constant-power voltage regulation mode;
when the detection voltage is higher than the preset threshold value, controlling the inverter main body to be in a second constant-power voltage regulation mode;
wherein the first power is lower than the second power.
Optionally, the step of controlling the inverter body to be in the first constant power voltage regulation mode includes:
and detecting the current output power, when the output power reaches a first constant power point, keeping the output power at the first constant power point all the time, and adjusting the output voltage according to the load in real time so that the current output power is not higher than the first power.
Optionally, the step of adjusting the output voltage in real time according to the load so that the current output power is not higher than the second power includes:
and when the output voltage is lower than a preset minimum voltage, turning off the output of the inverter body.
Optionally, the step of controlling the inverter body to be in the second constant power voltage regulation mode includes:
detecting current output power, when the output power reaches a second constant power point, keeping the output power at the second constant power point all the time, and adjusting output voltage in real time according to a load so that the current output power is not higher than the second power;
wherein the second constant power point is greater than the first constant power point.
Optionally, the step of controlling the inverter body to be in the second constant power voltage regulation mode includes:
detecting current output power, when the output power reaches a second constant power point, keeping the output power at the second constant power point all the time, and adjusting output voltage in real time according to a load so that the current output power is not higher than the second power;
the second constant power point is greater than the first constant power point.
Compared with the prior art, the invention has the beneficial effects that the cigar lighter connector is provided with the cigar lighter detection terminal through the newly added cigar lighter connector and the battery connector, the cigar lighter detection terminal is connected with the cathode of the cigar lighter socket through the cigar lighter cathode terminal of the cigar lighter connector, and the battery connector is not provided with the detection terminal, so that when the cigar lighter connector is connected with the chip connector, the detection pin is connected with the cathode of the cigar lighter socket based on a passage constructed by the cigar lighter cathode terminal, the voltage on the detection pin is pulled down, and when the chip connector is connected with the battery connector, the voltage on the detection pin is not influenced, so that the current power supply connected with the main body of the inverter can be detected based on the voltage on the detection pin, and a matched output mode is adopted, therefore, the vehicle-mounted inverter system can be simultaneously suitable for two power supply modes needing to be connected with a vehicle-mounted battery and the cigar lighter socket, and a user can flexibly select the power supply modes according to actual requirements, and the vehicle-mounted inverter system is very convenient.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flow chart of an embodiment of a method for controlling power of an on-board inverter according to the present invention;
FIG. 2 is a schematic diagram of an embodiment of an on-board inverter system of the present invention;
fig. 3 is a schematic structural view of an embodiment of an inverter body of the present invention;
FIG. 4 is a schematic diagram of an embodiment of a cigar lighter connector of the present invention;
FIG. 5 is a schematic view of the structure of an embodiment of the battery connector of the present invention;
fig. 6 is a constant power graph of the present invention.
The reference numerals in the drawings are as follows: 10. a vehicle-mounted inversion system; 11. an inverter main body; 12. a cigar lighter connector; 13. a battery connector; 111. a control chip; 1111. a power supply pin; 1112. detecting pins; 1113. a grounding pin; 112. a chip connector; 1121. a chip positive terminal; 1122. a chip negative terminal; 1123. a chip detection terminal; 113. controlling the resistor; 121. a cigar lighter positive terminal; 122. a cigar lighter negative terminal; 123. a cigar lighter detection terminal; 131. a battery positive terminal; 132. a battery negative terminal; 124a and 124b, cigar lighter cables; 133a and 133b, battery cables; 134a and 134b, crocodile clips.
Detailed Description
Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Fig. 1 to 5 are schematic flow diagrams of an embodiment of a power control method for an on-vehicle inverter according to the present invention, and fig. 2 is a schematic structural diagram of an embodiment of an on-vehicle inverter system 10 according to the present invention. Fig. 3 is a schematic structural view of an embodiment of an inverter body 11 according to the present invention, fig. 4 is a schematic structural view of an embodiment of a cigar lighter connector 12 according to the present invention, and fig. 5 is a schematic structural view of a battery connector 13 according to the present invention. As shown in fig. 2, the in-vehicle inverter system 10 includes an inverter main body 11, a cigar lighter connector 12, and a battery connector 13.
The inverter body 11 is connected to a power supply module including one or more ac power sockets for supplying ac power to the connected electric appliances. The inverter body 11 can be connected to either one of the cigar lighter connector 12 and the battery connector 13, and can determine whether the cigar lighter connector 12 or the battery connector 13 is connected, and is in a corresponding operation state.
The cigar lighter connector 12 is adapted to connect to a cigar lighter socket, typically providing 12 v dc power, the cigar lighter connector 12 being capable of transmitting the power of the cigar lighter socket to the inverter body 11. The battery connector 13 is used to connect an in-vehicle battery that typically provides 12 volt or 24 volt dc power, and the battery connector 13 is capable of transmitting the power of the in-vehicle battery to the inverter body 11.
Specifically, since the rated power of the cigar lighter socket is typically around 100 watts, only low power devices, such as a cell phone charger or other small electronic devices, can be supported in the first constant power voltage regulation mode when the inverter body 11 is connected to the cigar lighter connector 12. Vehicle batteries typically have higher power output capabilities to meet the demands of higher power electronics. Therefore, when the inverter main body 11 is connected to the battery connector 13, the second constant power voltage regulation mode is in. The second power corresponding to the second constant power voltage regulation mode is higher than the first power corresponding to the first constant power voltage regulation mode.
Therefore, the vehicle-mounted inverter system 10 can be simultaneously suitable for two power supply modes of a vehicle-mounted battery to be connected and a cigar lighter socket to be connected, and a user can flexibly select the power supply mode according to actual requirements, so that the inverter system 10 can be widely applied to different vehicles and use scenes. When the user needs to switch the power supply mode, the power supply mode can be realized only by switching the component (the cigar lighter connector 12 or the battery connector 13) connected with the inverter main body 11, so that the power supply mode is very convenient and quick, and the use experience of the user is effectively improved.
With continued reference to fig. 1, the inverter body 11 includes a control chip 111 and a connector 112 connected to each other, and the control chip 111 includes a detection pin 1112. The chip connector 112 includes a chip detection terminal 1123. The inverter body 11 further includes a control resistor 113, and one end of the control resistor 113 is connected to the power supply pin 1111, and the other end is connected to the detection pin 1112. When the power supply pin 1111 is turned on, a current will flow through the control resistor 113, and at this time, the voltage signal on the control resistor 113 is used as a detection signal received by the detection pin 1112, and the control chip 111 determines whether the cigar lighter connector 12 or the battery connector 13 is connected to the current chip connector 112 according to the detection signal. The resistance of the control resistor 113 is 1kΩ to 10kΩ because if the resistance is too large, the signal is easily disturbed. If the resistance value is too small, the whole circuit generates larger power consumption.
Control chip 111 also includes a power supply pin 1111 and a ground pin 1113. The power supply pin 1111 is connected to a chip power supply for supplying power required to control the operation of the chip 111. The ground pin 1113 is grounded to provide electrical ground for the control chip 111, ensuring operational safety of the control chip 111. The chip connector 112 also includes a chip positive terminal 1121 and a chip negative terminal 1122. The chip positive terminal 1121 is connected to an internal positive electrode for supplying an amount of electricity required for the operation of the inverter main body 11. The chip negative terminal 1122 is connected to the ground pin 1113, and the chip detection terminal 1123 is connected to the detection pin 1112.
The cigar lighter connector 12 is adapted to connect with the chip connector 112 and with the cigar lighter socket so that the control chip 111 connected to the chip connector 112 can determine that the current chip connector 112 is connected to the cigar lighter connector 12 based on information provided by the cigar lighter connector 12.
Specifically, the cigar lighter connector 12 includes a cigar lighter positive terminal 121, a cigar lighter negative terminal 122 and a cigar lighter detection terminal 123, the cigar lighter positive terminal 121 is connected to the positive pole of the cigar lighter socket, the cigar lighter negative terminal 122 is connected to the negative pole of the cigar lighter socket, and the cigar lighter detection terminal 123 is connected to the cigar lighter negative terminal 122. When the cigar lighter connector 12 is connected to the chip connector 112, the cigar lighter positive terminal 121 can be connected to the chip positive terminal 1121, the cigar lighter negative terminal 122 can be connected to the chip negative terminal 1122, and the cigar lighter detection terminal 123 can be connected to the chip detection terminal 1123. Since the cigar lighter detection terminal 123 is connected to the cigar lighter negative terminal 122, the cigar lighter detection terminal 123 is connected to the chip detection terminal 1123, and the chip detection terminal 1123 is connected to the detection pin 1112, then a path is formed between the detection pin 1112 and the cigar lighter negative terminal 122, which causes a voltage drop between the detection pin 1112 and the cigar lighter negative terminal 122, which will reduce the voltage on the detection pin 1112, resulting in a lower voltage on the detection pin 1112 (e.g., lower than 0.7V).
The battery connector 13 is used to connect with the chip connector 112 and to connect with the vehicle-mounted battery, so that the control chip 111 connected with the chip connector 112 can determine that the chip connector 112 is currently connected with the battery connector 13 based on information provided by the battery connector 13.
Specifically, the battery connector 13 includes a battery positive terminal 131 and a battery negative terminal 132, the battery positive terminal 131 being connected to the positive electrode of the vehicle battery, and the battery negative terminal 132 being connected to the negative electrode of the vehicle battery. When the battery connector 13 is connected to the chip connector 112, the battery positive terminal 131 can be connected to the chip positive terminal 1121, and the battery negative terminal 132 can be connected to the chip negative terminal 1122. Since the battery connector 13 is not provided with a terminal connected to the chip detection terminal 1123, the voltage of the detection pin 1112 connected to the chip detection terminal 1123 is not reduced, and the voltage of the detection pin 1112 is high (for example, 3.3V).
With continued reference to fig. 4 and 5, the cigar lighter connector 12 further includes two sets of cigar lighter cables 124a and 124b, wherein one end of one set of cigar lighter cable 124a is connected to the positive electrode of the vehicle-mounted cigar lighter and the other end is connected to the cigar lighter positive terminal 121; another set of cigar lighter cables 124b have one end connected to the negative pole of the vehicle cigar lighter and the other end connected to the cigar lighter negative terminal 122, and another set of cigar lighter cables 124b have one end of one of the cigar lighter cables 1241 connected to both the cigar lighter negative terminal 122 and the cigar lighter detection terminal 123.
Battery connector 13 further includes two sets of battery cables 133a and 133b, with alligator clips 134a and 134b provided at one end of each set of battery cables 133a and 133 b; one group of battery cables 133a is connected with the positive electrode of the vehicle-mounted battery through crocodile clips 134a, and the other end of the battery cables is connected with a battery positive electrode terminal 131; another set of battery cables 133b are connected to the negative pole of the vehicle battery via alligator clips 134b, the other end of which is connected to battery negative terminal 132.
As shown in fig. 1, the vehicle-mounted inverter power control method provided by the invention comprises the following steps:
s101: the detection voltage on the detection pin is detected.
In one implementation scenario, control chip 111 detects a voltage on detection pin 1112. Specifically, the control chip 111 configures and controls an input mode of the mcu_bps pin through an internal GPIO (general purpose input/output) pin. In the input mode, the control chip 111 monitors the detection voltage state of the detection pin 1112. Typically, the control chip 111 will configure the sense pin 1112 as a digital input and convert the voltage on the sense pin 1112 to a logic level through internal circuitry. The control chip 111 acquires the detection voltage state of the detection pin 1112 by reading a state register or a related register of the detection pin 1112. The values in these registers reflect the detected voltage state of the detection pin 1112, and may be preset to a preset threshold value, as a low voltage when the detected voltage is below the preset threshold value, and as a high voltage when the detected voltage is above the preset threshold value. The control chip 111 performs corresponding logic judgment and operation according to the level state of the detection pin 1112.
S102: when the detected voltage is lower than a preset threshold value, the inverter main body 11 is controlled to be in the first constant power voltage regulation mode.
In one particular implementation, and as will be appreciated in connection with the description above, when the chip connector 112 and the cigar lighter connector 12 are connected, the chip detect terminal 1123 and the cigar lighter detect terminal 123 are connected, and since the cigar lighter detect terminal 123 is connected to the cigar lighter negative terminal 122, a path is formed between the detect pin 1112 and the cigar lighter negative terminal 122, and the initial voltage on the detect pin 1112 will be reduced by the voltage drop caused by this path, resulting in the detected voltage on the detect pin 1112 being a low voltage.
Therefore, when the detected voltage is lower than the preset threshold, it may be determined that the power source connected to the current inverter body 11 is a cigar lighter socket, and the cigar lighter socket cannot support the electronic device with larger power, so it is necessary to control the control chip 111 to be in the first constant power voltage regulation mode with lower power.
Specifically, the control chip 111 detects and controls the power output by the inverter body 11 in real time, compares the power value with a preset first constant power point, and maintains the current voltage if the current power value does not exceed the first constant power point, so that the power output by the inverter body 11 is lower than the first power. If the current power value reaches the first constant power point, the output power is kept at the first constant power point all the time, and the output voltage is adjusted according to the real-time condition of the load connected to the current inverter body 11 so that the current output power is not higher than the first power (for example, 140W).
To control the output voltage, an inverter typically employs a technique called PWM (pulse width modulation). PWM is a method of adjusting a voltage, and controls an average value of an output voltage by adjusting a width of a pulse. In this embodiment, the output voltage is controlled by adjusting the SPWM (Sinusoidal Pulse Width Modulation ) signal.
In other embodiments, if the load connected to the inverter body 11 is continuously increased after the output power is maintained at the first constant power point, the output voltage needs to be continuously decreased, and when the output voltage is decreased to a preset minimum voltage (a preset minimum voltage for indicating that the output voltage is lower than the safety range), the control chip 111 automatically turns off the output of the inverter body 11. Such protection helps prevent overload, voltage instability, or other faults of the inverter itself. If it is necessary to restart the inverter body 11 and output power again, a preset restart key (AC ON/OFF key) needs to be pressed, which will restart the inverter body 11 and allow it to restart output.
S103: when the detected voltage is higher than the preset threshold, the inverter body 11 is controlled to be in the second constant power voltage regulation mode, and the first power is lower than the second power.
In one particular implementation, as will be appreciated in connection with the description above, when the chip connector 112 and the battery connector 13 are connected, the chip sense terminal 1123 is not connected to other terminals, and the initial voltage on the sense pin 1112 is not affected, and therefore the voltage is higher.
Therefore, when the detected voltage is higher than the preset threshold, it may be determined that the current power source to which the inverter main body 11 is connected is a vehicle-mounted battery, and the vehicle-mounted battery may support high-power electronic equipment, so that it is necessary to control the inverter main body 11 to be in the second constant-power voltage regulation mode with higher power.
Specifically, the control chip 111 detects and controls the power output by the inverter body 11 in real time, compares the power value with a preset second constant power point, and maintains the current voltage value if the current value does not exceed the second constant power point, so that the power output by the inverter body 11 is lower than the second power. If the current power value reaches the second constant power point, the output power is kept at the second constant power point all the time, and the output voltage is adjusted according to the real-time condition of the load connected to the current inverter body 11 so that the current output power is not higher than the second power (for example, 105% of rated power).
Similar to in step S102, in the present embodiment, the output voltage is controlled by adjusting the SPWM (Sinusoidal Pulse Width Modulation ) signal.
In other embodiments, if the load connected to the inverter body 11 is continuously increased after the output power is maintained at the second constant power point, the output voltage needs to be continuously decreased, and when the output voltage is decreased to a preset minimum voltage (a preset minimum voltage for indicating that the output voltage is lower than the safety range), the control chip 111 automatically turns off the output of the inverter body 11. Such protection helps prevent overload, voltage instability, or other faults of the inverter itself. If it is necessary to restart the inverter body 11 and output power again, a preset restart key (AC ON/OFF key) needs to be pressed, which will restart the inverter body 11 and allow it to restart output.
Referring to fig. 6 in combination, fig. 6 is a graph of constant power provided by the present invention, wherein a dashed line represents a relationship between power and voltage corresponding to a first constant power voltage regulation mode, i.e., a first constant power curve, a limiting power is a first constant power point, a solid line represents a relationship between power and voltage corresponding to a second constant power voltage regulation mode, i.e., a second constant power curve, and a limiting power is a first constant power point.
It should be understood that the foregoing embodiments are merely illustrative of the technical solutions of the present invention, and not limiting thereof, and that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art; all such modifications and substitutions are intended to be included within the scope of this disclosure as defined in the following claims.
Claims (10)
1. A vehicle-mounted inverter system, comprising:
a cigar lighter connector, comprising: a cigar lighter detection terminal connected with the negative electrode of the cigar lighter socket;
a battery connector;
an inverter body comprising:
a chip connector including a chip detection terminal, the chip connector being connectable to any one of the cigar lighter connector and the battery connector, the cigar lighter detection terminal being connected to the chip detection terminal when the chip connector is connected to the cigar lighter connector, the chip detection terminal being empty when the chip connector is connected to the battery connector;
the control chip is provided with a detection pin, the detection pin is connected with the chip detection terminal, the control chip can judge whether the chip connector is currently connected with a cigar lighter connector or a battery connector according to the voltage on the detection pin, and the inverter main body is driven to be in a corresponding power mode according to the judging result.
2. The vehicle-mounted inverter system of claim 1, wherein the control chip further comprises:
the power supply pin is connected with a chip power supply, and the grounding pin is grounded;
the inverter body further includes:
and one end of the control resistor is connected with the power supply pin, and the other end of the control resistor is connected with the detection pin.
3. The vehicle-mounted inverter system of claim 1, wherein the cigar lighter connector further comprises:
the cigar lighter comprises a cigar lighter positive terminal and a cigar lighter negative terminal, wherein the cigar lighter negative terminal is connected with the negative electrode of the cigar lighter socket, the cigar lighter positive terminal is connected with the positive electrode of the cigar lighter socket, and the cigar lighter detection terminal is connected with the cigar lighter negative terminal;
the vehicle-mounted battery comprises a battery positive terminal and a battery negative terminal, wherein the battery positive terminal is connected with the positive electrode of the vehicle-mounted battery, and the battery negative terminal is connected with the negative electrode of the vehicle-mounted battery.
4. The vehicle-mounted inverter system of claim 3, wherein the cigar lighter connector further comprises:
two groups of cigar lighter cables, wherein one end of one group of cigar lighter cable is connected with the positive electrode of the vehicle-mounted cigar lighter, and the other end of the other group of cigar lighter cable is connected with the positive electrode terminal of the cigar lighter;
another group cigar lighter cable one end is connected the negative pole of on-vehicle cigar lighter, its other end is connected the second cigar lighter negative pole terminal, another group cigar lighter cable one of them cigar lighter cable's other end is connected simultaneously cigar lighter negative pole terminal with cigar lighter detects the terminal.
5. The vehicle-mounted inverter system of claim 3, wherein the battery connector further comprises:
two groups of battery cables, wherein one end of each group of battery cable is provided with an alligator clip;
one group of the battery cables is connected with the positive electrode of the vehicle-mounted battery through the crocodile clip, and the other end of the battery cable is connected with the positive electrode terminal of the battery;
the other group of battery cables are connected with the negative electrode of the vehicle-mounted battery through the crocodile clips, and the other end of the battery cables is connected with the negative electrode terminal of the battery.
6. A vehicle-mounted inverter power control method, characterized by being applied to the vehicle-mounted inverter system according to any one of claims 1 to 5, comprising:
detecting a detection voltage on the detection pin;
when the detection voltage is lower than a preset threshold value, controlling the inverter main body to be in a first constant power voltage regulation mode under first power;
when the detection voltage is higher than the preset threshold value, controlling the inverter main body to be in a second constant power voltage regulation mode under second power;
wherein the first power is lower than the second power.
7. The vehicle-mounted inverter power control method of claim 6, wherein the step of controlling the inverter body in a first constant power voltage regulation mode comprises:
and detecting the current output power, when the output power reaches a first constant power point, keeping the output power at the first constant power point all the time, and adjusting the output voltage according to the load in real time so that the current output power is not higher than the first power.
8. The method according to claim 7, wherein the step of adjusting the output voltage in real time according to the load so that the current output power is not higher than the second power comprises:
and when the output voltage is lower than a preset minimum voltage, turning off the output of the inverter body.
9. The vehicle-mounted inverter power control method of claim 6, wherein the step of controlling the inverter body in the second constant power voltage regulation mode comprises:
detecting current output power, when the output power reaches a second constant power point, keeping the output power at the second constant power point all the time, and adjusting output voltage in real time according to a load so that the current output power is not higher than the second power;
wherein the second constant power point is greater than the first constant power point.
10. The vehicle-mounted inverter power control method of claim 9, the step of controlling the inverter body in a second constant power voltage regulation mode comprising:
detecting current output power, when the output power reaches a second constant power point, keeping the output power at the second constant power point all the time, and adjusting output voltage in real time according to a load so that the current output power is not higher than the second power;
the second constant power point is greater than the first constant power point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311330743.0A CN117424472A (en) | 2023-10-13 | 2023-10-13 | Vehicle-mounted inverter power control system and method |
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| CN202311330743.0A CN117424472A (en) | 2023-10-13 | 2023-10-13 | Vehicle-mounted inverter power control system and method |
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| CN117424472A true CN117424472A (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311330743.0A Pending CN117424472A (en) | 2023-10-13 | 2023-10-13 | Vehicle-mounted inverter power control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117424472A (en) |
-
2023
- 2023-10-13 CN CN202311330743.0A patent/CN117424472A/en active Pending
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